diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/Kconfig | 15 | ||||
| -rw-r--r-- | drivers/video/Makefile | 6 | ||||
| -rw-r--r-- | drivers/video/dp-uclass.c | 34 | ||||
| -rw-r--r-- | drivers/video/tegra124/Makefile | 10 | ||||
| -rw-r--r-- | drivers/video/tegra124/display.c | 472 | ||||
| -rw-r--r-- | drivers/video/tegra124/displayport.h | 412 | ||||
| -rw-r--r-- | drivers/video/tegra124/dp.c | 1607 | ||||
| -rw-r--r-- | drivers/video/tegra124/sor.c | 1024 | ||||
| -rw-r--r-- | drivers/video/tegra124/sor.h | 922 | ||||
| -rw-r--r-- | drivers/video/tegra124/tegra124-lcd.c | 97 |
10 files changed, 4599 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 51728b3..2544301 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -88,3 +88,18 @@ config VIDEO_LCD_SPI_MISO hardware and LCD panel id retrieval (if the panel can report it). The option takes a string in the format understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. + +config DISPLAY_PORT + bool "Enable DisplayPort support" + help + eDP (Embedded DisplayPort) is a standard widely used in laptops + to drive LCD panels. This framework provides support for enabling + these displays where supported by the video hardware. + +config VIDEO_TEGRA124 + bool "Enable video support on Tegra124" + help + Tegra124 supports many video output options including eDP and + HDMI. At present only eDP is supported by U-Boot. This option + enables this support which can be used on devices which + have an eDP display connected. diff --git a/drivers/video/Makefile b/drivers/video/Makefile index f64918e..2ead7f1 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -5,6 +5,10 @@ # SPDX-License-Identifier: GPL-2.0+ # +ifdef CONFIG_DM +obj-$(CONFIG_DISPLAY_PORT) += dp-uclass.o +endif + obj-$(CONFIG_ATI_RADEON_FB) += ati_radeon_fb.o videomodes.o obj-$(CONFIG_ATMEL_HLCD) += atmel_hlcdfb.o obj-$(CONFIG_ATMEL_LCD) += atmel_lcdfb.o @@ -48,3 +52,5 @@ obj-$(CONFIG_FORMIKE) += formike.o obj-$(CONFIG_LG4573) += lg4573.o obj-$(CONFIG_AM335X_LCD) += am335x-fb.o obj-$(CONFIG_VIDEO_PARADE) += parade.o + +obj-${CONFIG_VIDEO_TEGRA124} += tegra124/ diff --git a/drivers/video/dp-uclass.c b/drivers/video/dp-uclass.c new file mode 100644 index 0000000..17f5de9 --- /dev/null +++ b/drivers/video/dp-uclass.c @@ -0,0 +1,34 @@ +/* + * Copyright 2014 Google Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <displayport.h> +#include <errno.h> + +int display_port_read_edid(struct udevice *dev, u8 *buf, int buf_size) +{ + struct dm_display_port_ops *ops = display_port_get_ops(dev); + + if (!ops || !ops->read_edid) + return -ENOSYS; + return ops->read_edid(dev, buf, buf_size); +} + +int display_port_enable(struct udevice *dev, int panel_bpp, + const struct display_timing *timing) +{ + struct dm_display_port_ops *ops = display_port_get_ops(dev); + + if (!ops || !ops->enable) + return -ENOSYS; + return ops->enable(dev, panel_bpp, timing); +} + +UCLASS_DRIVER(display_port) = { + .id = UCLASS_DISPLAY_PORT, + .name = "display_port", +}; diff --git a/drivers/video/tegra124/Makefile b/drivers/video/tegra124/Makefile new file mode 100644 index 0000000..52eedb0 --- /dev/null +++ b/drivers/video/tegra124/Makefile @@ -0,0 +1,10 @@ +# +# Copyright (c) 2014 Google, Inc +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += display.o +obj-y += dp.o +obj-y += sor.o +obj-y += tegra124-lcd.o diff --git a/drivers/video/tegra124/display.c b/drivers/video/tegra124/display.c new file mode 100644 index 0000000..7179dbf --- /dev/null +++ b/drivers/video/tegra124/display.c @@ -0,0 +1,472 @@ +/* + * Copyright 2014 Google Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Extracted from Chromium coreboot commit 3f59b13d + */ + +#include <common.h> +#include <dm.h> +#include <edid.h> +#include <errno.h> +#include <displayport.h> +#include <edid.h> +#include <fdtdec.h> +#include <lcd.h> +#include <asm/gpio.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/pwm.h> +#include <asm/arch-tegra/dc.h> +#include "displayport.h" + +DECLARE_GLOBAL_DATA_PTR; + +/* return in 1000ths of a Hertz */ +static int tegra_dc_calc_refresh(const struct display_timing *timing) +{ + int h_total, v_total, refresh; + int pclk = timing->pixelclock.typ; + + h_total = timing->hactive.typ + timing->hfront_porch.typ + + timing->hback_porch.typ + timing->hsync_len.typ; + v_total = timing->vactive.typ + timing->vfront_porch.typ + + timing->vback_porch.typ + timing->vsync_len.typ; + if (!pclk || !h_total || !v_total) + return 0; + refresh = pclk / h_total; + refresh *= 1000; + refresh /= v_total; + + return refresh; +} + +static void print_mode(const struct display_timing *timing) +{ + int refresh = tegra_dc_calc_refresh(timing); + + debug("MODE:%dx%d@%d.%03uHz pclk=%d\n", + timing->hactive.typ, timing->vactive.typ, refresh / 1000, + refresh % 1000, timing->pixelclock.typ); +} + +static int update_display_mode(struct dc_ctlr *disp_ctrl, + const struct display_timing *timing, + int href_to_sync, int vref_to_sync) +{ + print_mode(timing); + + writel(0x1, &disp_ctrl->disp.disp_timing_opt); + + writel(vref_to_sync << 16 | href_to_sync, + &disp_ctrl->disp.ref_to_sync); + + writel(timing->vsync_len.typ << 16 | timing->hsync_len.typ, + &disp_ctrl->disp.sync_width); + + writel(((timing->vback_porch.typ - vref_to_sync) << 16) | + timing->hback_porch.typ, &disp_ctrl->disp.back_porch); + + writel(((timing->vfront_porch.typ + vref_to_sync) << 16) | + timing->hfront_porch.typ, &disp_ctrl->disp.front_porch); + + writel(timing->hactive.typ | (timing->vactive.typ << 16), + &disp_ctrl->disp.disp_active); + + /** + * We want to use PLLD_out0, which is PLLD / 2: + * PixelClock = (PLLD / 2) / ShiftClockDiv / PixelClockDiv. + * + * Currently most panels work inside clock range 50MHz~100MHz, and PLLD + * has some requirements to have VCO in range 500MHz~1000MHz (see + * clock.c for more detail). To simplify calculation, we set + * PixelClockDiv to 1 and ShiftClockDiv to 1. In future these values + * may be calculated by clock_display, to allow wider frequency range. + * + * Note ShiftClockDiv is a 7.1 format value. + */ + const u32 shift_clock_div = 1; + writel((PIXEL_CLK_DIVIDER_PCD1 << PIXEL_CLK_DIVIDER_SHIFT) | + ((shift_clock_div - 1) * 2) << SHIFT_CLK_DIVIDER_SHIFT, + &disp_ctrl->disp.disp_clk_ctrl); + debug("%s: PixelClock=%u, ShiftClockDiv=%u\n", __func__, + timing->pixelclock.typ, shift_clock_div); + return 0; +} + +static u32 tegra_dc_poll_register(void *reg, + u32 mask, u32 exp_val, u32 poll_interval_us, u32 timeout_us) +{ + u32 temp = timeout_us; + u32 reg_val = 0; + + do { + udelay(poll_interval_us); + reg_val = readl(reg); + if (timeout_us > poll_interval_us) + timeout_us -= poll_interval_us; + else + break; + } while ((reg_val & mask) != exp_val); + + if ((reg_val & mask) == exp_val) + return 0; /* success */ + + return temp; +} + +int tegra_dc_sor_general_act(struct dc_ctlr *disp_ctrl) +{ + writel(GENERAL_ACT_REQ, &disp_ctrl->cmd.state_ctrl); + + if (tegra_dc_poll_register(&disp_ctrl->cmd.state_ctrl, + GENERAL_ACT_REQ, 0, 100, + DC_POLL_TIMEOUT_MS * 1000)) { + debug("dc timeout waiting for DC to stop\n"); + return -ETIMEDOUT; + } + + return 0; +} + +static struct display_timing min_mode = { + .hsync_len = { .typ = 1 }, + .vsync_len = { .typ = 1 }, + .hback_porch = { .typ = 20 }, + .vback_porch = { .typ = 0 }, + .hactive = { .typ = 16 }, + .vactive = { .typ = 16 }, + .hfront_porch = { .typ = 1 }, + .vfront_porch = { .typ = 2 }, +}; + +/* Disable windows and set minimum raster timings */ +void tegra_dc_sor_disable_win_short_raster(struct dc_ctlr *disp_ctrl, + int *dc_reg_ctx) +{ + const int href_to_sync = 0, vref_to_sync = 1; + int selected_windows, i; + + selected_windows = readl(&disp_ctrl->cmd.disp_win_header); + + /* Store and clear window options */ + for (i = 0; i < DC_N_WINDOWS; ++i) { + writel(WINDOW_A_SELECT << i, &disp_ctrl->cmd.disp_win_header); + dc_reg_ctx[i] = readl(&disp_ctrl->win.win_opt); + writel(0, &disp_ctrl->win.win_opt); + writel(WIN_A_ACT_REQ << i, &disp_ctrl->cmd.state_ctrl); + } + + writel(selected_windows, &disp_ctrl->cmd.disp_win_header); + + /* Store current raster timings and set minimum timings */ + dc_reg_ctx[i++] = readl(&disp_ctrl->disp.ref_to_sync); + writel(href_to_sync | (vref_to_sync << 16), + &disp_ctrl->disp.ref_to_sync); + + dc_reg_ctx[i++] = readl(&disp_ctrl->disp.sync_width); + writel(min_mode.hsync_len.typ | (min_mode.vsync_len.typ << 16), + &disp_ctrl->disp.sync_width); + + dc_reg_ctx[i++] = readl(&disp_ctrl->disp.back_porch); + writel(min_mode.hback_porch.typ | (min_mode.vback_porch.typ << 16), + &disp_ctrl->disp.back_porch); + + dc_reg_ctx[i++] = readl(&disp_ctrl->disp.front_porch); + writel(min_mode.hfront_porch.typ | (min_mode.vfront_porch.typ << 16), + &disp_ctrl->disp.front_porch); + + dc_reg_ctx[i++] = readl(&disp_ctrl->disp.disp_active); + writel(min_mode.hactive.typ | (min_mode.vactive.typ << 16), + &disp_ctrl->disp.disp_active); + + writel(GENERAL_ACT_REQ, &disp_ctrl->cmd.state_ctrl); +} + +/* Restore previous windows status and raster timings */ +void tegra_dc_sor_restore_win_and_raster(struct dc_ctlr *disp_ctrl, + int *dc_reg_ctx) +{ + int selected_windows, i; + + selected_windows = readl(&disp_ctrl->cmd.disp_win_header); + + for (i = 0; i < DC_N_WINDOWS; ++i) { + writel(WINDOW_A_SELECT << i, &disp_ctrl->cmd.disp_win_header); + writel(dc_reg_ctx[i], &disp_ctrl->win.win_opt); + writel(WIN_A_ACT_REQ << i, &disp_ctrl->cmd.state_ctrl); + } + + writel(selected_windows, &disp_ctrl->cmd.disp_win_header); + + writel(dc_reg_ctx[i++], &disp_ctrl->disp.ref_to_sync); + writel(dc_reg_ctx[i++], &disp_ctrl->disp.sync_width); + writel(dc_reg_ctx[i++], &disp_ctrl->disp.back_porch); + writel(dc_reg_ctx[i++], &disp_ctrl->disp.front_porch); + writel(dc_reg_ctx[i++], &disp_ctrl->disp.disp_active); + + writel(GENERAL_UPDATE, &disp_ctrl->cmd.state_ctrl); +} + +static int tegra_depth_for_bpp(int bpp) +{ + switch (bpp) { + case 32: + return COLOR_DEPTH_R8G8B8A8; + case 16: + return COLOR_DEPTH_B5G6R5; + default: + debug("Unsupported LCD bit depth"); + return -1; + } +} + +static int update_window(struct dc_ctlr *disp_ctrl, + u32 frame_buffer, int fb_bits_per_pixel, + const struct display_timing *timing) +{ + const u32 colour_white = 0xffffff; + int colour_depth; + u32 val; + + writel(WINDOW_A_SELECT, &disp_ctrl->cmd.disp_win_header); + + writel(((timing->vactive.typ << 16) | timing->hactive.typ), + &disp_ctrl->win.size); + writel(((timing->vactive.typ << 16) | + (timing->hactive.typ * fb_bits_per_pixel / 8)), + &disp_ctrl->win.prescaled_size); + writel(((timing->hactive.typ * fb_bits_per_pixel / 8 + 31) / + 32 * 32), &disp_ctrl->win.line_stride); + + colour_depth = tegra_depth_for_bpp(fb_bits_per_pixel); + if (colour_depth == -1) + return -EINVAL; + + writel(colour_depth, &disp_ctrl->win.color_depth); + + writel(frame_buffer, &disp_ctrl->winbuf.start_addr); + writel(0x1000 << V_DDA_INC_SHIFT | 0x1000 << H_DDA_INC_SHIFT, + &disp_ctrl->win.dda_increment); + + writel(colour_white, &disp_ctrl->disp.blend_background_color); + writel(CTRL_MODE_C_DISPLAY << CTRL_MODE_SHIFT, + &disp_ctrl->cmd.disp_cmd); + + writel(WRITE_MUX_ACTIVE, &disp_ctrl->cmd.state_access); + + val = GENERAL_ACT_REQ | WIN_A_ACT_REQ; + val |= GENERAL_UPDATE | WIN_A_UPDATE; + writel(val, &disp_ctrl->cmd.state_ctrl); + + /* Enable win_a */ + val = readl(&disp_ctrl->win.win_opt); + writel(val | WIN_ENABLE, &disp_ctrl->win.win_opt); + + return 0; +} + +static int tegra_dc_init(struct dc_ctlr *disp_ctrl) +{ + /* do not accept interrupts during initialization */ + writel(0x00000000, &disp_ctrl->cmd.int_mask); + writel(WRITE_MUX_ASSEMBLY | READ_MUX_ASSEMBLY, + &disp_ctrl->cmd.state_access); + writel(WINDOW_A_SELECT, &disp_ctrl->cmd.disp_win_header); + writel(0x00000000, &disp_ctrl->win.win_opt); + writel(0x00000000, &disp_ctrl->win.byte_swap); + writel(0x00000000, &disp_ctrl->win.buffer_ctrl); + + writel(0x00000000, &disp_ctrl->win.pos); + writel(0x00000000, &disp_ctrl->win.h_initial_dda); + writel(0x00000000, &disp_ctrl->win.v_initial_dda); + writel(0x00000000, &disp_ctrl->win.dda_increment); + writel(0x00000000, &disp_ctrl->win.dv_ctrl); + + writel(0x01000000, &disp_ctrl->win.blend_layer_ctrl); + writel(0x00000000, &disp_ctrl->win.blend_match_select); + writel(0x00000000, &disp_ctrl->win.blend_nomatch_select); + writel(0x00000000, &disp_ctrl->win.blend_alpha_1bit); + + writel(0x00000000, &disp_ctrl->winbuf.start_addr_hi); + writel(0x00000000, &disp_ctrl->winbuf.addr_h_offset); + writel(0x00000000, &disp_ctrl->winbuf.addr_v_offset); + + writel(0x00000000, &disp_ctrl->com.crc_checksum); + writel(0x00000000, &disp_ctrl->com.pin_output_enb[0]); + writel(0x00000000, &disp_ctrl->com.pin_output_enb[1]); + writel(0x00000000, &disp_ctrl->com.pin_output_enb[2]); + writel(0x00000000, &disp_ctrl->com.pin_output_enb[3]); + writel(0x00000000, &disp_ctrl->disp.disp_signal_opt0); + + return 0; +} + +static void dump_config(int panel_bpp, struct display_timing *timing) +{ + printf("timing->hactive.typ = %d\n", timing->hactive.typ); + printf("timing->vactive.typ = %d\n", timing->vactive.typ); + printf("timing->pixelclock.typ = %d\n", timing->pixelclock.typ); + + printf("timing->hfront_porch.typ = %d\n", timing->hfront_porch.typ); + printf("timing->hsync_len.typ = %d\n", timing->hsync_len.typ); + printf("timing->hback_porch.typ = %d\n", timing->hback_porch.typ); + + printf("timing->vfront_porch.typ %d\n", timing->vfront_porch.typ); + printf("timing->vsync_len.typ = %d\n", timing->vsync_len.typ); + printf("timing->vback_porch.typ = %d\n", timing->vback_porch.typ); + + printf("panel_bits_per_pixel = %d\n", panel_bpp); +} + +static int display_update_config_from_edid(struct udevice *dp_dev, + int *panel_bppp, + struct display_timing *timing) +{ + u8 buf[EDID_SIZE]; + int bpc, ret; + + ret = display_port_read_edid(dp_dev, buf, sizeof(buf)); + if (ret < 0) + return ret; + ret = edid_get_timing(buf, ret, timing, &bpc); + if (ret) + return ret; + + /* Use this information if valid */ + if (bpc != -1) + *panel_bppp = bpc * 3; + + return 0; +} + +/* Somewhat torturous method */ +static int get_backlight_info(const void *blob, struct gpio_desc *vdd, + struct gpio_desc *enable, int *pwmp) +{ + int sor, panel, backlight, power; + const u32 *prop; + int len; + int ret; + + *pwmp = 0; + sor = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_SOR); + if (sor < 0) + return -ENOENT; + panel = fdtdec_lookup_phandle(blob, sor, "nvidia,panel"); + if (panel < 0) + return -ENOENT; + backlight = fdtdec_lookup_phandle(blob, panel, "backlight"); + if (backlight < 0) + return -ENOENT; + ret = gpio_request_by_name_nodev(blob, backlight, "enable-gpios", 0, + enable, GPIOD_IS_OUT); + if (ret) + return ret; + prop = fdt_getprop(blob, backlight, "pwms", &len); + if (!prop || len != 3 * sizeof(u32)) + return -EINVAL; + *pwmp = fdt32_to_cpu(prop[1]); + + power = fdtdec_lookup_phandle(blob, backlight, "power-supply"); + if (power < 0) + return -ENOENT; + ret = gpio_request_by_name_nodev(blob, power, "gpio", 0, vdd, + GPIOD_IS_OUT); + if (ret) + goto err; + + return 0; + +err: + dm_gpio_free(NULL, enable); + return ret; +} + +int display_init(void *lcdbase, int fb_bits_per_pixel, + struct display_timing *timing) +{ + struct dc_ctlr *dc_ctlr; + const void *blob = gd->fdt_blob; + struct udevice *dp_dev; + const int href_to_sync = 1, vref_to_sync = 1; + int panel_bpp = 18; /* default 18 bits per pixel */ + u32 plld_rate; + struct gpio_desc vdd_gpio, enable_gpio; + int pwm; + int node; + int ret; + + ret = uclass_get_device(UCLASS_DISPLAY_PORT, 0, &dp_dev); + if (ret) + return ret; + + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_DC); + if (node < 0) + return -ENOENT; + dc_ctlr = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg"); + if (fdtdec_decode_display_timing(blob, node, 0, timing)) + return -EINVAL; + + ret = display_update_config_from_edid(dp_dev, &panel_bpp, timing); + if (ret) { + debug("%s: Failed to decode EDID, using defaults\n", __func__); + dump_config(panel_bpp, timing); + } + + if (!get_backlight_info(blob, &vdd_gpio, &enable_gpio, &pwm)) { + dm_gpio_set_value(&vdd_gpio, 1); + debug("%s: backlight vdd setting gpio %08x to %d\n", + __func__, gpio_get_number(&vdd_gpio), 1); + } + + /* + * The plld is programmed with the assumption of the SHIFT_CLK_DIVIDER + * and PIXEL_CLK_DIVIDER are zero (divide by 1). See the + * update_display_mode() for detail. + */ + plld_rate = clock_set_display_rate(timing->pixelclock.typ * 2); + if (plld_rate == 0) { + printf("dc: clock init failed\n"); + return -EIO; + } else if (plld_rate != timing->pixelclock.typ * 2) { + debug("dc: plld rounded to %u\n", plld_rate); + timing->pixelclock.typ = plld_rate / 2; + } + + /* Init dc */ + ret = tegra_dc_init(dc_ctlr); + if (ret) { + debug("dc: init failed\n"); + return ret; + } + + /* Configure dc mode */ + ret = update_display_mode(dc_ctlr, timing, href_to_sync, vref_to_sync); + if (ret) { + debug("dc: failed to configure display mode\n"); + return ret; + } + + /* Enable dp */ + ret = display_port_enable(dp_dev, panel_bpp, timing); + if (ret) + return ret; + + ret = update_window(dc_ctlr, (ulong)lcdbase, fb_bits_per_pixel, timing); + if (ret) + return ret; + + /* Set up Tegra PWM to drive the panel backlight */ + pwm_enable(pwm, 0, 220, 0x2e); + udelay(10 * 1000); + + if (dm_gpio_is_valid(&enable_gpio)) { + dm_gpio_set_value(&enable_gpio, 1); + debug("%s: backlight enable setting gpio %08x to %d\n", + __func__, gpio_get_number(&enable_gpio), 1); + } + + return 0; +} diff --git a/drivers/video/tegra124/displayport.h b/drivers/video/tegra124/displayport.h new file mode 100644 index 0000000..ace6ab0 --- /dev/null +++ b/drivers/video/tegra124/displayport.h @@ -0,0 +1,412 @@ +/* + * Copyright (c) 2014, NVIDIA Corporation. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _TEGRA_DISPLAYPORT_H +#define _TEGRA_DISPLAYPORT_H + +#include <linux/drm_dp_helper.h> + +struct dpaux_ctlr { + u32 reserved0; + u32 intr_en_aux; + u32 reserved2_4; + u32 intr_aux; +}; + +#define DPAUX_INTR_EN_AUX 0x1 +#define DPAUX_INTR_AUX 0x5 +#define DPAUX_DP_AUXDATA_WRITE_W(i) (0x9 + 4 * (i)) +#define DPAUX_DP_AUXDATA_READ_W(i) (0x19 + 4 * (i)) +#define DPAUX_DP_AUXADDR 0x29 +#define DPAUX_DP_AUXCTL 0x2d +#define DPAUX_DP_AUXCTL_CMDLEN_SHIFT 0 +#define DPAUX_DP_AUXCTL_CMDLEN_FIELD 0xff +#define DPAUX_DP_AUXCTL_CMD_SHIFT 12 +#define DPAUX_DP_AUXCTL_CMD_MASK (0xf << 12) +#define DPAUX_DP_AUXCTL_CMD_I2CWR (0 << 12) +#define DPAUX_DP_AUXCTL_CMD_I2CRD (1 << 12) +#define DPAUX_DP_AUXCTL_CMD_I2CREQWSTAT (2 << 12) +#define DPAUX_DP_AUXCTL_CMD_MOTWR (4 << 12) +#define DPAUX_DP_AUXCTL_CMD_MOTRD (5 << 12) +#define DPAUX_DP_AUXCTL_CMD_MOTREQWSTAT (6 << 12) +#define DPAUX_DP_AUXCTL_CMD_AUXWR (8 << 12) +#define DPAUX_DP_AUXCTL_CMD_AUXRD (9 << 12) +#define DPAUX_DP_AUXCTL_TRANSACTREQ_SHIFT 16 +#define DPAUX_DP_AUXCTL_TRANSACTREQ_MASK (0x1 << 16) +#define DPAUX_DP_AUXCTL_TRANSACTREQ_DONE (0 << 16) +#define DPAUX_DP_AUXCTL_TRANSACTREQ_PENDING (1 << 16) +#define DPAUX_DP_AUXCTL_RST_SHIFT 31 +#define DPAUX_DP_AUXCTL_RST_DEASSERT (0 << 31) +#define DPAUX_DP_AUXCTL_RST_ASSERT (1 << 31) +#define DPAUX_DP_AUXSTAT 0x31 +#define DPAUX_DP_AUXSTAT_HPD_STATUS_SHIFT 28 +#define DPAUX_DP_AUXSTAT_HPD_STATUS_UNPLUG (0 << 28) +#define DPAUX_DP_AUXSTAT_HPD_STATUS_PLUGGED (1 << 28) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_SHIFT 20 +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_MASK (0xf << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_IDLE (0 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_SYNC (1 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_START1 (2 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_COMMAND (3 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_ADDRESS (4 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_LENGTH (5 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_WRITE1 (6 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_READ1 (7 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_GET_M (8 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_STOP1 (9 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_STOP2 (10 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_REPLY (11 << 20) +#define DPAUX_DP_AUXSTAT_AUXCTL_STATE_CLEANUP (12 << 20) +#define DPAUX_DP_AUXSTAT_REPLYTYPE_SHIFT 16 +#define DPAUX_DP_AUXSTAT_REPLYTYPE_MASK (0xf << 16) +#define DPAUX_DP_AUXSTAT_REPLYTYPE_ACK (0 << 16) +#define DPAUX_DP_AUXSTAT_REPLYTYPE_NACK (1 << 16) +#define DPAUX_DP_AUXSTAT_REPLYTYPE_DEFER (2 << 16) +#define DPAUX_DP_AUXSTAT_REPLYTYPE_I2CNACK (4 << 16) +#define DPAUX_DP_AUXSTAT_REPLYTYPE_I2CDEFER (8 << 16) +#define DPAUX_DP_AUXSTAT_NO_STOP_ERROR_SHIFT 11 +#define DPAUX_DP_AUXSTAT_NO_STOP_ERROR_NOT_PENDING (0 << 11) +#define DPAUX_DP_AUXSTAT_NO_STOP_ERROR_PENDING (1 << 11) +#define DPAUX_DP_AUXSTAT_SINKSTAT_ERROR_SHIFT 10 +#define DPAUX_DP_AUXSTAT_SINKSTAT_ERROR_NOT_PENDING (0 << 10) +#define DPAUX_DP_AUXSTAT_SINKSTAT_ERROR_PENDING (1 << 10) +#define DPAUX_DP_AUXSTAT_RX_ERROR_SHIFT 9 +#define DPAUX_DP_AUXSTAT_RX_ERROR_NOT_PENDING (0 << 9) +#define DPAUX_DP_AUXSTAT_RX_ERROR_PENDING (1 << 9) +#define DPAUX_DP_AUXSTAT_TIMEOUT_ERROR_SHIFT 8 +#define DPAUX_DP_AUXSTAT_TIMEOUT_ERROR_NOT_PENDING (0 << 8) +#define DPAUX_DP_AUXSTAT_TIMEOUT_ERROR_PENDING (1 << 8) +#define DPAUX_DP_AUXSTAT_REPLY_M_SHIFT 0 +#define DPAUX_DP_AUXSTAT_REPLY_M_MASK (0xff << 0) +#define DPAUX_HPD_CONFIG (0x3d) +#define DPAUX_HPD_IRQ_CONFIG 0x41 +#define DPAUX_DP_AUX_CONFIG 0x45 +#define DPAUX_HYBRID_PADCTL 0x49 +#define DPAUX_HYBRID_PADCTL_I2C_SDA_INPUT_RCV_SHIFT 15 +#define DPAUX_HYBRID_PADCTL_I2C_SDA_INPUT_RCV_DISABLE (0 << 15) +#define DPAUX_HYBRID_PADCTL_I2C_SDA_INPUT_RCV_ENABLE (1 << 15) +#define DPAUX_HYBRID_PADCTL_I2C_SCL_INPUT_RCV_SHIFT 14 +#define DPAUX_HYBRID_PADCTL_I2C_SCL_INPUT_RCV_DISABLE (0 << 14) +#define DPAUX_HYBRID_PADCTL_I2C_SCL_INPUT_RCV_ENABLE (1 << 14) +#define DPAUX_HYBRID_PADCTL_AUX_CMH_SHIFT 12 +#define DPAUX_HYBRID_PADCTL_AUX_CMH_DEFAULT_MASK (0x3 << 12) +#define DPAUX_HYBRID_PADCTL_AUX_CMH_V0_60 (0 << 12) +#define DPAUX_HYBRID_PADCTL_AUX_CMH_V0_64 (1 << 12) +#define DPAUX_HYBRID_PADCTL_AUX_CMH_V0_70 (2 << 12) +#define DPAUX_HYBRID_PADCTL_AUX_CMH_V0_56 (3 << 12) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_SHIFT 8 +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_DEFAULT_MASK (0x7 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_78 (0 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_60 (1 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_54 (2 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_45 (3 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_50 (4 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_42 (5 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_39 (6 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_34 (7 << 8) +#define DPAUX_HYBRID_PADCTL_AUX_DRVI_SHIFT 2 +#define DPAUX_HYBRID_PADCTL_AUX_DRVI_DEFAULT_MASK (0x3f << 2) +#define DPAUX_HYBRID_PADCTL_AUX_INPUT_RCV_SHIFT 1 +#define DPAUX_HYBRID_PADCTL_AUX_INPUT_RCV_DISABLE (0 << 1) +#define DPAUX_HYBRID_PADCTL_AUX_INPUT_RCV_ENABLE (1 << 1) +#define DPAUX_HYBRID_PADCTL_MODE_SHIFT 0 +#define DPAUX_HYBRID_PADCTL_MODE_AUX 0 +#define DPAUX_HYBRID_PADCTL_MODE_I2C 1 +#define DPAUX_HYBRID_SPARE 0x4d +#define DPAUX_HYBRID_SPARE_PAD_PWR_POWERUP 0 +#define DPAUX_HYBRID_SPARE_PAD_PWR_POWERDOWN 1 + +#define DP_AUX_DEFER_MAX_TRIES 7 +#define DP_AUX_TIMEOUT_MAX_TRIES 2 +#define DP_POWER_ON_MAX_TRIES 3 + +#define DP_AUX_MAX_BYTES 16 + +#define DP_AUX_TIMEOUT_MS 40 +#define DP_DPCP_RETRY_SLEEP_NS 400 + +static const u32 tegra_dp_vs_regs[][4][4] = { + /* postcursor2 L0 */ + { + /* pre-emphasis: L0, L1, L2, L3 */ + {0x13, 0x19, 0x1e, 0x28}, /* voltage swing: L0 */ + {0x1e, 0x25, 0x2d}, /* L1 */ + {0x28, 0x32}, /* L2 */ + {0x3c}, /* L3 */ + }, + + /* postcursor2 L1 */ + { + {0x12, 0x17, 0x1b, 0x25}, + {0x1c, 0x23, 0x2a}, + {0x25, 0x2f}, + {0x39}, + }, + + /* postcursor2 L2 */ + { + {0x12, 0x16, 0x1a, 0x22}, + {0x1b, 0x20, 0x27}, + {0x24, 0x2d}, + {0x36}, + }, + + /* postcursor2 L3 */ + { + {0x11, 0x14, 0x17, 0x1f}, + {0x19, 0x1e, 0x24}, + {0x22, 0x2a}, + {0x32}, + }, +}; + +static const u32 tegra_dp_pe_regs[][4][4] = { + /* postcursor2 L0 */ + { + /* pre-emphasis: L0, L1, L2, L3 */ + {0x00, 0x09, 0x13, 0x25}, /* voltage swing: L0 */ + {0x00, 0x0f, 0x1e}, /* L1 */ + {0x00, 0x14}, /* L2 */ + {0x00}, /* L3 */ + }, + + /* postcursor2 L1 */ + { + {0x00, 0x0a, 0x14, 0x28}, + {0x00, 0x0f, 0x1e}, + {0x00, 0x14}, + {0x00}, + }, + + /* postcursor2 L2 */ + { + {0x00, 0x0a, 0x14, 0x28}, + {0x00, 0x0f, 0x1e}, + {0x00, 0x14}, + {0x00}, + }, + + /* postcursor2 L3 */ + { + {0x00, 0x0a, 0x14, 0x28}, + {0x00, 0x0f, 0x1e}, + {0x00, 0x14}, + {0x00}, + }, +}; + +static const u32 tegra_dp_pc_regs[][4][4] = { + /* postcursor2 L0 */ + { + /* pre-emphasis: L0, L1, L2, L3 */ + {0x00, 0x00, 0x00, 0x00}, /* voltage swing: L0 */ + {0x00, 0x00, 0x00}, /* L1 */ + {0x00, 0x00}, /* L2 */ + {0x00}, /* L3 */ + }, + + /* postcursor2 L1 */ + { + {0x02, 0x02, 0x04, 0x05}, + {0x02, 0x04, 0x05}, + {0x04, 0x05}, + {0x05}, + }, + + /* postcursor2 L2 */ + { + {0x04, 0x05, 0x08, 0x0b}, + {0x05, 0x09, 0x0b}, + {0x08, 0x0a}, + {0x0b}, + }, + + /* postcursor2 L3 */ + { + {0x05, 0x09, 0x0b, 0x12}, + {0x09, 0x0d, 0x12}, + {0x0b, 0x0f}, + {0x12}, + }, +}; + +static const u32 tegra_dp_tx_pu[][4][4] = { + /* postcursor2 L0 */ + { + /* pre-emphasis: L0, L1, L2, L3 */ + {0x20, 0x30, 0x40, 0x60}, /* voltage swing: L0 */ + {0x30, 0x40, 0x60}, /* L1 */ + {0x40, 0x60}, /* L2 */ + {0x60}, /* L3 */ + }, + + /* postcursor2 L1 */ + { + {0x20, 0x20, 0x30, 0x50}, + {0x30, 0x40, 0x50}, + {0x40, 0x50}, + {0x60}, + }, + + /* postcursor2 L2 */ + { + {0x20, 0x20, 0x30, 0x40}, + {0x30, 0x30, 0x40}, + {0x40, 0x50}, + {0x60}, + }, + + /* postcursor2 L3 */ + { + {0x20, 0x20, 0x20, 0x40}, + {0x30, 0x30, 0x40}, + {0x40, 0x40}, + {0x60}, + }, +}; + +enum { + DRIVECURRENT_LEVEL0 = 0, + DRIVECURRENT_LEVEL1 = 1, + DRIVECURRENT_LEVEL2 = 2, + DRIVECURRENT_LEVEL3 = 3, +}; + +enum { + PREEMPHASIS_DISABLED = 0, + PREEMPHASIS_LEVEL1 = 1, + PREEMPHASIS_LEVEL2 = 2, + PREEMPHASIS_LEVEL3 = 3, +}; + +enum { + POSTCURSOR2_LEVEL0 = 0, + POSTCURSOR2_LEVEL1 = 1, + POSTCURSOR2_LEVEL2 = 2, + POSTCURSOR2_LEVEL3 = 3, + POSTCURSOR2_SUPPORTED +}; + +static inline int tegra_dp_is_max_vs(u32 pe, u32 vs) +{ + return (vs < (DRIVECURRENT_LEVEL3 - pe)) ? 0 : 1; +} + +static inline int tegra_dp_is_max_pe(u32 pe, u32 vs) +{ + return (pe < (PREEMPHASIS_LEVEL3 - vs)) ? 0 : 1; +} + +static inline int tegra_dp_is_max_pc(u32 pc) +{ + return (pc < POSTCURSOR2_LEVEL3) ? 0 : 1; +} + +/* DPCD definitions which are not defined in drm_dp_helper.h */ +#define DP_DPCD_REV_MAJOR_SHIFT 4 +#define DP_DPCD_REV_MAJOR_MASK (0xf << 4) +#define DP_DPCD_REV_MINOR_SHIFT 0 +#define DP_DPCD_REV_MINOR_MASK 0xf + +#define DP_MAX_LINK_RATE_VAL_1_62_GPBS 0x6 +#define DP_MAX_LINK_RATE_VAL_2_70_GPBS 0xa +#define DP_MAX_LINK_RATE_VAL_5_40_GPBS 0x4 + +#define DP_MAX_LANE_COUNT_LANE_1 0x1 +#define DP_MAX_LANE_COUNT_LANE_2 0x2 +#define DP_MAX_LANE_COUNT_LANE_4 0x4 +#define DP_MAX_LANE_COUNT_TPS3_SUPPORTED_YES (1 << 6) +#define DP_MAX_LANE_COUNT_ENHANCED_FRAMING_YES (1 << 7) + +#define NV_DPCD_TRAINING_LANEX_SET_DC_SHIFT 0 +#define NV_DPCD_TRAINING_LANEX_SET_DC_MAX_REACHED_T (0x00000001 << 2) +#define NV_DPCD_TRAINING_LANEX_SET_DC_MAX_REACHED_F (0x00000000 << 2) +#define NV_DPCD_TRAINING_LANEX_SET_PE_SHIFT 3 +#define NV_DPCD_TRAINING_LANEX_SET_PE_MAX_REACHED_T (0x00000001 << 5) +#define NV_DPCD_TRAINING_LANEX_SET_PE_MAX_REACHED_F (0x00000000 << 5) + +#define DP_MAX_DOWNSPREAD_VAL_NONE 0 +#define DP_MAX_DOWNSPREAD_VAL_0_5_PCT 1 +#define DP_MAX_DOWNSPREAD_NO_AUX_HANDSHAKE_LT_T (1 << 6) + +#define DP_EDP_CONFIGURATION_CAP_ASC_RESET_YES 1 +#define DP_EDP_CONFIGURATION_CAP_FRAMING_CHANGE_YES (1 << 1) + +#define DP_LANE_COUNT_SET_ENHANCEDFRAMING_T (1 << 7) + +#define DP_TRAINING_PATTERN_SET_SC_DISABLED_T (1 << 5) +#define NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_F (0x00000000 << 5) +#define NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_T (0x00000001 << 5) + +#define DP_MAIN_LINK_CHANNEL_CODING_SET_ASC_RESET_DISABLE 0 +#define DP_MAIN_LINK_CHANNEL_CODING_SET_ASC_RESET_ENABLE 1 + +#define NV_DPCD_TRAINING_LANE0_1_SET2 0x10f +#define NV_DPCD_TRAINING_LANE2_3_SET2 0x110 +#define NV_DPCD_LANEX_SET2_PC2_MAX_REACHED_T (1 << 2) +#define NV_DPCD_LANEX_SET2_PC2_MAX_REACHED_F (0 << 2) +#define NV_DPCD_LANEXPLUS1_SET2_PC2_MAX_REACHED_T (1 << 6) +#define NV_DPCD_LANEXPLUS1_SET2_PC2_MAX_REACHED_F (0 << 6) +#define NV_DPCD_LANEX_SET2_PC2_SHIFT 0 +#define NV_DPCD_LANEXPLUS1_SET2_PC2_SHIFT 4 + +#define NV_DPCD_STATUS_LANEX_CR_DONE_SHIFT 0 +#define NV_DPCD_STATUS_LANEX_CR_DONE_NO (0x00000000) +#define NV_DPCD_STATUS_LANEX_CR_DONE_YES (0x00000001) +#define NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_SHIFT 1 +#define NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_NO (0x00000000 << 1) +#define NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_YES (0x00000001 << 1) +#define NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_SHFIT 2 +#define NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_NO (0x00000000 << 2) +#define NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_YES (0x00000001 << 2) +#define NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_SHIFT 4 +#define NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_NO (0x00000000 << 4) +#define NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_YES (0x00000001 << 4) +#define NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_SHIFT 5 +#define NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_NO (0x00000000 << 5) +#define NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_YES (0x00000001 << 5) +#define NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_SHIFT 6 +#define NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_NO (0x00000000 << 6) +#define NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_YES (0x00000001 << 6) + +#define NV_DPCD_LANE_ALIGN_STATUS_UPDATED (0x00000204) +#define NV_DPCD_LANE_ALIGN_STATUS_UPDATED_DONE_NO (0x00000000) +#define NV_DPCD_LANE_ALIGN_STATUS_UPDATED_DONE_YES (0x00000001) + +#define NV_DPCD_STATUS_LANEX_CR_DONE_SHIFT 0 +#define NV_DPCD_STATUS_LANEX_CR_DONE_NO (0x00000000) +#define NV_DPCD_STATUS_LANEX_CR_DONE_YES (0x00000001) +#define NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_SHIFT 1 +#define NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_NO (0x00000000 << 1) +#define NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_YES (0x00000001 << 1) +#define NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_SHFIT 2 +#define NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_NO (0x00000000 << 2) +#define NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_YES (0x00000001 << 2) +#define NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_SHIFT 4 +#define NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_NO (0x00000000 << 4) +#define NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_YES (0x00000001 << 4) +#define NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_SHIFT 5 +#define NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_NO (0x00000000 << 5) +#define NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_YES (0x00000001 << 5) +#define NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_SHIFT 6 +#define NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_NO (0x00000000 << 6) +#define NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_YES (0x00000001 << 6) + +#define NV_DPCD_ADJUST_REQ_LANEX_DC_SHIFT 0 +#define NV_DPCD_ADJUST_REQ_LANEX_DC_MASK 0x3 +#define NV_DPCD_ADJUST_REQ_LANEX_PE_SHIFT 2 +#define NV_DPCD_ADJUST_REQ_LANEX_PE_MASK (0x3 << 2) +#define NV_DPCD_ADJUST_REQ_LANEXPLUS1_DC_SHIFT 4 +#define NV_DPCD_ADJUST_REQ_LANEXPLUS1_DC_MASK (0x3 << 4) +#define NV_DPCD_ADJUST_REQ_LANEXPLUS1_PE_SHIFT 6 +#define NV_DPCD_ADJUST_REQ_LANEXPLUS1_PE_MASK (0x3 << 6) +#define NV_DPCD_ADJUST_REQ_POST_CURSOR2 (0x0000020C) +#define NV_DPCD_ADJUST_REQ_POST_CURSOR2_LANE_MASK 0x3 +#define NV_DPCD_ADJUST_REQ_POST_CURSOR2_LANE_SHIFT(i) (i*2) + +#define NV_DPCD_TRAINING_AUX_RD_INTERVAL (0x0000000E) +#define NV_DPCD_TRAINING_LANEX_SET_DC_MAX_REACHED_F (0x00000000 << 2) +#endif diff --git a/drivers/video/tegra124/dp.c b/drivers/video/tegra124/dp.c new file mode 100644 index 0000000..3c0b721 --- /dev/null +++ b/drivers/video/tegra124/dp.c @@ -0,0 +1,1607 @@ +/* + * Copyright (c) 2011-2013, NVIDIA Corporation. + * Copyright 2014 Google Inc. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <displayport.h> +#include <dm.h> +#include <div64.h> +#include <errno.h> +#include <fdtdec.h> +#include <asm/io.h> +#include <asm/arch-tegra/dc.h> +#include "displayport.h" +#include "edid.h" +#include "sor.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define DO_FAST_LINK_TRAINING 1 + +struct tegra_dp_plat { + ulong base; +}; + +struct tegra_dp_priv { + struct dpaux_ctlr *regs; + struct tegra_dc_sor_data *sor; + u8 revision; + int enabled; +}; + +struct tegra_dp_priv dp_data; + +static inline u32 tegra_dpaux_readl(struct tegra_dp_priv *dp, u32 reg) +{ + return readl((u32 *)dp->regs + reg); +} + +static inline void tegra_dpaux_writel(struct tegra_dp_priv *dp, u32 reg, + u32 val) +{ + writel(val, (u32 *)dp->regs + reg); +} + +static inline u32 tegra_dc_dpaux_poll_register(struct tegra_dp_priv *dp, + u32 reg, u32 mask, u32 exp_val, + u32 poll_interval_us, + u32 timeout_us) +{ + u32 reg_val = 0; + u32 temp = timeout_us; + + do { + udelay(poll_interval_us); + reg_val = tegra_dpaux_readl(dp, reg); + if (timeout_us > poll_interval_us) + timeout_us -= poll_interval_us; + else + break; + } while ((reg_val & mask) != exp_val); + + if ((reg_val & mask) == exp_val) + return 0; /* success */ + debug("dpaux_poll_register 0x%x: timeout: (reg_val)0x%08x & (mask)0x%08x != (exp_val)0x%08x\n", + reg, reg_val, mask, exp_val); + return temp; +} + +static inline int tegra_dpaux_wait_transaction(struct tegra_dp_priv *dp) +{ + /* According to DP spec, each aux transaction needs to finish + within 40ms. */ + if (tegra_dc_dpaux_poll_register(dp, DPAUX_DP_AUXCTL, + DPAUX_DP_AUXCTL_TRANSACTREQ_MASK, + DPAUX_DP_AUXCTL_TRANSACTREQ_DONE, + 100, DP_AUX_TIMEOUT_MS * 1000) != 0) { + debug("dp: DPAUX transaction timeout\n"); + return -1; + } + return 0; +} + +static int tegra_dc_dpaux_write_chunk(struct tegra_dp_priv *dp, u32 cmd, + u32 addr, u8 *data, u32 *size, + u32 *aux_stat) +{ + int i; + u32 reg_val; + u32 timeout_retries = DP_AUX_TIMEOUT_MAX_TRIES; + u32 defer_retries = DP_AUX_DEFER_MAX_TRIES; + u32 temp_data; + + if (*size > DP_AUX_MAX_BYTES) + return -1; /* only write one chunk of data */ + + /* Make sure the command is write command */ + switch (cmd) { + case DPAUX_DP_AUXCTL_CMD_I2CWR: + case DPAUX_DP_AUXCTL_CMD_MOTWR: + case DPAUX_DP_AUXCTL_CMD_AUXWR: + break; + default: + debug("dp: aux write cmd 0x%x is invalid\n", cmd); + return -EINVAL; + } + + tegra_dpaux_writel(dp, DPAUX_DP_AUXADDR, addr); + for (i = 0; i < DP_AUX_MAX_BYTES / 4; ++i) { + memcpy(&temp_data, data, 4); + tegra_dpaux_writel(dp, DPAUX_DP_AUXDATA_WRITE_W(i), temp_data); + data += 4; + } + + reg_val = tegra_dpaux_readl(dp, DPAUX_DP_AUXCTL); + reg_val &= ~DPAUX_DP_AUXCTL_CMD_MASK; + reg_val |= cmd; + reg_val &= ~DPAUX_DP_AUXCTL_CMDLEN_FIELD; + reg_val |= ((*size - 1) << DPAUX_DP_AUXCTL_CMDLEN_SHIFT); + + while ((timeout_retries > 0) && (defer_retries > 0)) { + if ((timeout_retries != DP_AUX_TIMEOUT_MAX_TRIES) || + (defer_retries != DP_AUX_DEFER_MAX_TRIES)) + udelay(1); + + reg_val |= DPAUX_DP_AUXCTL_TRANSACTREQ_PENDING; + tegra_dpaux_writel(dp, DPAUX_DP_AUXCTL, reg_val); + + if (tegra_dpaux_wait_transaction(dp)) + debug("dp: aux write transaction timeout\n"); + + *aux_stat = tegra_dpaux_readl(dp, DPAUX_DP_AUXSTAT); + + if ((*aux_stat & DPAUX_DP_AUXSTAT_TIMEOUT_ERROR_PENDING) || + (*aux_stat & DPAUX_DP_AUXSTAT_RX_ERROR_PENDING) || + (*aux_stat & DPAUX_DP_AUXSTAT_SINKSTAT_ERROR_PENDING) || + (*aux_stat & DPAUX_DP_AUXSTAT_NO_STOP_ERROR_PENDING)) { + if (timeout_retries-- > 0) { + debug("dp: aux write retry (0x%x) -- %d\n", + *aux_stat, timeout_retries); + /* clear the error bits */ + tegra_dpaux_writel(dp, DPAUX_DP_AUXSTAT, + *aux_stat); + continue; + } else { + debug("dp: aux write got error (0x%x)\n", + *aux_stat); + return -ETIMEDOUT; + } + } + + if ((*aux_stat & DPAUX_DP_AUXSTAT_REPLYTYPE_I2CDEFER) || + (*aux_stat & DPAUX_DP_AUXSTAT_REPLYTYPE_DEFER)) { + if (defer_retries-- > 0) { + debug("dp: aux write defer (0x%x) -- %d\n", + *aux_stat, defer_retries); + /* clear the error bits */ + tegra_dpaux_writel(dp, DPAUX_DP_AUXSTAT, + *aux_stat); + continue; + } else { + debug("dp: aux write defer exceeds max retries (0x%x)\n", + *aux_stat); + return -ETIMEDOUT; + } + } + + if ((*aux_stat & DPAUX_DP_AUXSTAT_REPLYTYPE_MASK) == + DPAUX_DP_AUXSTAT_REPLYTYPE_ACK) { + *size = ((*aux_stat) & DPAUX_DP_AUXSTAT_REPLY_M_MASK); + return 0; + } else { + debug("dp: aux write failed (0x%x)\n", *aux_stat); + return -EIO; + } + } + /* Should never come to here */ + return -EIO; +} + +static int tegra_dc_dpaux_read_chunk(struct tegra_dp_priv *dp, u32 cmd, + u32 addr, u8 *data, u32 *size, + u32 *aux_stat) +{ + u32 reg_val; + u32 timeout_retries = DP_AUX_TIMEOUT_MAX_TRIES; + u32 defer_retries = DP_AUX_DEFER_MAX_TRIES; + + if (*size > DP_AUX_MAX_BYTES) { + debug("only read one chunk\n"); + return -EIO; /* only read one chunk */ + } + + /* Check to make sure the command is read command */ + switch (cmd) { + case DPAUX_DP_AUXCTL_CMD_I2CRD: + case DPAUX_DP_AUXCTL_CMD_I2CREQWSTAT: + case DPAUX_DP_AUXCTL_CMD_MOTRD: + case DPAUX_DP_AUXCTL_CMD_AUXRD: + break; + default: + debug("dp: aux read cmd 0x%x is invalid\n", cmd); + return -EIO; + } + + *aux_stat = tegra_dpaux_readl(dp, DPAUX_DP_AUXSTAT); + if (!(*aux_stat & DPAUX_DP_AUXSTAT_HPD_STATUS_PLUGGED)) { + debug("dp: HPD is not detected\n"); + return -EIO; + } + + tegra_dpaux_writel(dp, DPAUX_DP_AUXADDR, addr); + + reg_val = tegra_dpaux_readl(dp, DPAUX_DP_AUXCTL); + reg_val &= ~DPAUX_DP_AUXCTL_CMD_MASK; + reg_val |= cmd; + reg_val &= ~DPAUX_DP_AUXCTL_CMDLEN_FIELD; + reg_val |= ((*size - 1) << DPAUX_DP_AUXCTL_CMDLEN_SHIFT); + while ((timeout_retries > 0) && (defer_retries > 0)) { + if ((timeout_retries != DP_AUX_TIMEOUT_MAX_TRIES) || + (defer_retries != DP_AUX_DEFER_MAX_TRIES)) + udelay(DP_DPCP_RETRY_SLEEP_NS * 2); + + reg_val |= DPAUX_DP_AUXCTL_TRANSACTREQ_PENDING; + tegra_dpaux_writel(dp, DPAUX_DP_AUXCTL, reg_val); + + if (tegra_dpaux_wait_transaction(dp)) + debug("dp: aux read transaction timeout\n"); + + *aux_stat = tegra_dpaux_readl(dp, DPAUX_DP_AUXSTAT); + + if ((*aux_stat & DPAUX_DP_AUXSTAT_TIMEOUT_ERROR_PENDING) || + (*aux_stat & DPAUX_DP_AUXSTAT_RX_ERROR_PENDING) || + (*aux_stat & DPAUX_DP_AUXSTAT_SINKSTAT_ERROR_PENDING) || + (*aux_stat & DPAUX_DP_AUXSTAT_NO_STOP_ERROR_PENDING)) { + if (timeout_retries-- > 0) { + debug("dp: aux read retry (0x%x) -- %d\n", + *aux_stat, timeout_retries); + /* clear the error bits */ + tegra_dpaux_writel(dp, DPAUX_DP_AUXSTAT, + *aux_stat); + continue; /* retry */ + } else { + debug("dp: aux read got error (0x%x)\n", + *aux_stat); + return -ETIMEDOUT; + } + } + + if ((*aux_stat & DPAUX_DP_AUXSTAT_REPLYTYPE_I2CDEFER) || + (*aux_stat & DPAUX_DP_AUXSTAT_REPLYTYPE_DEFER)) { + if (defer_retries-- > 0) { + debug("dp: aux read defer (0x%x) -- %d\n", + *aux_stat, defer_retries); + /* clear the error bits */ + tegra_dpaux_writel(dp, DPAUX_DP_AUXSTAT, + *aux_stat); + continue; + } else { + debug("dp: aux read defer exceeds max retries (0x%x)\n", + *aux_stat); + return -ETIMEDOUT; + } + } + + if ((*aux_stat & DPAUX_DP_AUXSTAT_REPLYTYPE_MASK) == + DPAUX_DP_AUXSTAT_REPLYTYPE_ACK) { + int i; + u32 temp_data[4]; + + for (i = 0; i < DP_AUX_MAX_BYTES / 4; ++i) + temp_data[i] = tegra_dpaux_readl(dp, + DPAUX_DP_AUXDATA_READ_W(i)); + + *size = ((*aux_stat) & DPAUX_DP_AUXSTAT_REPLY_M_MASK); + memcpy(data, temp_data, *size); + + return 0; + } else { + debug("dp: aux read failed (0x%x\n", *aux_stat); + return -EIO; + } + } + /* Should never come to here */ + debug("%s: can't\n", __func__); + + return -EIO; +} + +static int tegra_dc_dpaux_read(struct tegra_dp_priv *dp, u32 cmd, u32 addr, + u8 *data, u32 *size, u32 *aux_stat) +{ + u32 finished = 0; + u32 cur_size; + int ret = 0; + + do { + cur_size = *size - finished; + if (cur_size > DP_AUX_MAX_BYTES) + cur_size = DP_AUX_MAX_BYTES; + + ret = tegra_dc_dpaux_read_chunk(dp, cmd, addr, + data, &cur_size, aux_stat); + if (ret) + break; + + /* cur_size should be the real size returned */ + addr += cur_size; + data += cur_size; + finished += cur_size; + + } while (*size > finished); + *size = finished; + + return ret; +} + +static int tegra_dc_dp_dpcd_read(struct tegra_dp_priv *dp, u32 cmd, + u8 *data_ptr) +{ + u32 size = 1; + u32 status = 0; + int ret; + + ret = tegra_dc_dpaux_read_chunk(dp, DPAUX_DP_AUXCTL_CMD_AUXRD, + cmd, data_ptr, &size, &status); + if (ret) { + debug("dp: Failed to read DPCD data. CMD 0x%x, Status 0x%x\n", + cmd, status); + } + + return ret; +} + +static int tegra_dc_dp_dpcd_write(struct tegra_dp_priv *dp, u32 cmd, + u8 data) +{ + u32 size = 1; + u32 status = 0; + int ret; + + ret = tegra_dc_dpaux_write_chunk(dp, DPAUX_DP_AUXCTL_CMD_AUXWR, + cmd, &data, &size, &status); + if (ret) { + debug("dp: Failed to write DPCD data. CMD 0x%x, Status 0x%x\n", + cmd, status); + } + + return ret; +} + +static int tegra_dc_i2c_aux_read(struct tegra_dp_priv *dp, u32 i2c_addr, + u8 addr, u8 *data, u32 size, u32 *aux_stat) +{ + u32 finished = 0; + int ret = 0; + + do { + u32 cur_size = min((u32)DP_AUX_MAX_BYTES, size - finished); + + u32 len = 1; + ret = tegra_dc_dpaux_write_chunk( + dp, DPAUX_DP_AUXCTL_CMD_MOTWR, i2c_addr, + &addr, &len, aux_stat); + if (ret) { + debug("%s: error sending address to read.\n", + __func__); + return ret; + } + + ret = tegra_dc_dpaux_read_chunk( + dp, DPAUX_DP_AUXCTL_CMD_I2CRD, i2c_addr, + data, &cur_size, aux_stat); + if (ret) { + debug("%s: error reading data.\n", __func__); + return ret; + } + + /* cur_size should be the real size returned */ + addr += cur_size; + data += cur_size; + finished += cur_size; + } while (size > finished); + + return finished; +} + +static void tegra_dc_dpaux_enable(struct tegra_dp_priv *dp) +{ + /* clear interrupt */ + tegra_dpaux_writel(dp, DPAUX_INTR_AUX, 0xffffffff); + /* do not enable interrupt for now. Enable them when Isr in place */ + tegra_dpaux_writel(dp, DPAUX_INTR_EN_AUX, 0x0); + + tegra_dpaux_writel(dp, DPAUX_HYBRID_PADCTL, + DPAUX_HYBRID_PADCTL_AUX_DRVZ_OHM_50 | + DPAUX_HYBRID_PADCTL_AUX_CMH_V0_70 | + 0x18 << DPAUX_HYBRID_PADCTL_AUX_DRVI_SHIFT | + DPAUX_HYBRID_PADCTL_AUX_INPUT_RCV_ENABLE); + + tegra_dpaux_writel(dp, DPAUX_HYBRID_SPARE, + DPAUX_HYBRID_SPARE_PAD_PWR_POWERUP); +} + +#ifdef DEBUG +static void tegra_dc_dp_dump_link_cfg(struct tegra_dp_priv *dp, + const struct tegra_dp_link_config *link_cfg) +{ + debug("DP config: cfg_name cfg_value\n"); + debug(" Lane Count %d\n", + link_cfg->max_lane_count); + debug(" SupportEnhancedFraming %s\n", + link_cfg->support_enhanced_framing ? "Y" : "N"); + debug(" Bandwidth %d\n", + link_cfg->max_link_bw); + debug(" bpp %d\n", + link_cfg->bits_per_pixel); + debug(" EnhancedFraming %s\n", + link_cfg->enhanced_framing ? "Y" : "N"); + debug(" Scramble_enabled %s\n", + link_cfg->scramble_ena ? "Y" : "N"); + debug(" LinkBW %d\n", + link_cfg->link_bw); + debug(" lane_count %d\n", + link_cfg->lane_count); + debug(" activespolarity %d\n", + link_cfg->activepolarity); + debug(" active_count %d\n", + link_cfg->active_count); + debug(" tu_size %d\n", + link_cfg->tu_size); + debug(" active_frac %d\n", + link_cfg->active_frac); + debug(" watermark %d\n", + link_cfg->watermark); + debug(" hblank_sym %d\n", + link_cfg->hblank_sym); + debug(" vblank_sym %d\n", + link_cfg->vblank_sym); +} +#endif + +static int _tegra_dp_lower_link_config(struct tegra_dp_priv *dp, + struct tegra_dp_link_config *cfg) +{ + switch (cfg->link_bw) { + case SOR_LINK_SPEED_G1_62: + if (cfg->max_link_bw > SOR_LINK_SPEED_G1_62) + cfg->link_bw = SOR_LINK_SPEED_G2_7; + cfg->lane_count /= 2; + break; + case SOR_LINK_SPEED_G2_7: + cfg->link_bw = SOR_LINK_SPEED_G1_62; + break; + case SOR_LINK_SPEED_G5_4: + if (cfg->lane_count == 1) { + cfg->link_bw = SOR_LINK_SPEED_G2_7; + cfg->lane_count = cfg->max_lane_count; + } else { + cfg->lane_count /= 2; + } + break; + default: + debug("dp: Error link rate %d\n", cfg->link_bw); + return -ENOLINK; + } + + return (cfg->lane_count > 0) ? 0 : -ENOLINK; +} + +/* + * Calcuate if given cfg can meet the mode request. + * Return 0 if mode is possible, -1 otherwise + */ +static int tegra_dc_dp_calc_config(struct tegra_dp_priv *dp, + const struct display_timing *timing, + struct tegra_dp_link_config *link_cfg) +{ + const u32 link_rate = 27 * link_cfg->link_bw * 1000 * 1000; + const u64 f = 100000; /* precision factor */ + u32 num_linkclk_line; /* Number of link clocks per line */ + u64 ratio_f; /* Ratio of incoming to outgoing data rate */ + u64 frac_f; + u64 activesym_f; /* Activesym per TU */ + u64 activecount_f; + u32 activecount; + u32 activepolarity; + u64 approx_value_f; + u32 activefrac = 0; + u64 accumulated_error_f = 0; + u32 lowest_neg_activecount = 0; + u32 lowest_neg_activepolarity = 0; + u32 lowest_neg_tusize = 64; + u32 num_symbols_per_line; + u64 lowest_neg_activefrac = 0; + u64 lowest_neg_error_f = 64 * f; + u64 watermark_f; + int i; + int neg; + + if (!link_rate || !link_cfg->lane_count || !timing->pixelclock.typ || + !link_cfg->bits_per_pixel) + return -1; + + if ((u64)timing->pixelclock.typ * link_cfg->bits_per_pixel >= + (u64)link_rate * 8 * link_cfg->lane_count) + return -1; + + num_linkclk_line = (u32)(lldiv(link_rate * timing->hactive.typ, + timing->pixelclock.typ)); + + ratio_f = (u64)timing->pixelclock.typ * link_cfg->bits_per_pixel * f; + ratio_f /= 8; + do_div(ratio_f, link_rate * link_cfg->lane_count); + + for (i = 64; i >= 32; --i) { + activesym_f = ratio_f * i; + activecount_f = lldiv(activesym_f, (u32)f) * f; + frac_f = activesym_f - activecount_f; + activecount = (u32)(lldiv(activecount_f, (u32)f)); + + if (frac_f < (lldiv(f, 2))) /* fraction < 0.5 */ + activepolarity = 0; + else { + activepolarity = 1; + frac_f = f - frac_f; + } + + if (frac_f != 0) { + /* warning: frac_f should be 64-bit */ + frac_f = lldiv(f * f, frac_f); /* 1 / fraction */ + if (frac_f > (15 * f)) + activefrac = activepolarity ? 1 : 15; + else + activefrac = activepolarity ? + (u32)lldiv(frac_f, (u32)f) + 1 : + (u32)lldiv(frac_f, (u32)f); + } + + if (activefrac == 1) + activepolarity = 0; + + if (activepolarity == 1) + approx_value_f = activefrac ? lldiv( + (activecount_f + (activefrac * f - f) * f), + (activefrac * f)) : + activecount_f + f; + else + approx_value_f = activefrac ? + activecount_f + lldiv(f, activefrac) : + activecount_f; + + if (activesym_f < approx_value_f) { + accumulated_error_f = num_linkclk_line * + lldiv(approx_value_f - activesym_f, i); + neg = 1; + } else { + accumulated_error_f = num_linkclk_line * + lldiv(activesym_f - approx_value_f, i); + neg = 0; + } + + if ((neg && (lowest_neg_error_f > accumulated_error_f)) || + (accumulated_error_f == 0)) { + lowest_neg_error_f = accumulated_error_f; + lowest_neg_tusize = i; + lowest_neg_activecount = activecount; + lowest_neg_activepolarity = activepolarity; + lowest_neg_activefrac = activefrac; + + if (accumulated_error_f == 0) + break; + } + } + + if (lowest_neg_activefrac == 0) { + link_cfg->activepolarity = 0; + link_cfg->active_count = lowest_neg_activepolarity ? + lowest_neg_activecount : lowest_neg_activecount - 1; + link_cfg->tu_size = lowest_neg_tusize; + link_cfg->active_frac = 1; + } else { + link_cfg->activepolarity = lowest_neg_activepolarity; + link_cfg->active_count = (u32)lowest_neg_activecount; + link_cfg->tu_size = lowest_neg_tusize; + link_cfg->active_frac = (u32)lowest_neg_activefrac; + } + + watermark_f = lldiv(ratio_f * link_cfg->tu_size * (f - ratio_f), f); + link_cfg->watermark = (u32)(lldiv(watermark_f + lowest_neg_error_f, + f)) + link_cfg->bits_per_pixel / 4 - 1; + num_symbols_per_line = (timing->hactive.typ * + link_cfg->bits_per_pixel) / + (8 * link_cfg->lane_count); + + if (link_cfg->watermark > 30) { + debug("dp: sor setting: unable to get a good tusize, force watermark to 30\n"); + link_cfg->watermark = 30; + return -1; + } else if (link_cfg->watermark > num_symbols_per_line) { + debug("dp: sor setting: force watermark to the number of symbols in the line\n"); + link_cfg->watermark = num_symbols_per_line; + return -1; + } + + /* + * Refer to dev_disp.ref for more information. + * # symbols/hblank = ((SetRasterBlankEnd.X + SetRasterSize.Width - + * SetRasterBlankStart.X - 7) * link_clk / pclk) + * - 3 * enhanced_framing - Y + * where Y = (# lanes == 4) 3 : (# lanes == 2) ? 6 : 12 + */ + link_cfg->hblank_sym = (int)lldiv(((uint64_t)timing->hback_porch.typ + + timing->hfront_porch.typ + timing->hsync_len.typ - 7) * + link_rate, timing->pixelclock.typ) - + 3 * link_cfg->enhanced_framing - + (12 / link_cfg->lane_count); + + if (link_cfg->hblank_sym < 0) + link_cfg->hblank_sym = 0; + + + /* + * Refer to dev_disp.ref for more information. + * # symbols/vblank = ((SetRasterBlankStart.X - + * SetRasterBlankEen.X - 25) * link_clk / pclk) + * - Y - 1; + * where Y = (# lanes == 4) 12 : (# lanes == 2) ? 21 : 39 + */ + link_cfg->vblank_sym = (int)lldiv(((uint64_t)timing->hactive.typ - 25) + * link_rate, timing->pixelclock.typ) - (36 / + link_cfg->lane_count) - 4; + + if (link_cfg->vblank_sym < 0) + link_cfg->vblank_sym = 0; + + link_cfg->is_valid = 1; +#ifdef DEBUG + tegra_dc_dp_dump_link_cfg(dp, link_cfg); +#endif + + return 0; +} + +static int tegra_dc_dp_init_max_link_cfg( + const struct display_timing *timing, + struct tegra_dp_priv *dp, + struct tegra_dp_link_config *link_cfg) +{ + const int drive_current = 0x40404040; + const int preemphasis = 0x0f0f0f0f; + const int postcursor = 0; + u8 dpcd_data; + int ret; + + ret = tegra_dc_dp_dpcd_read(dp, DP_MAX_LANE_COUNT, &dpcd_data); + if (ret) + return ret; + link_cfg->max_lane_count = dpcd_data & DP_MAX_LANE_COUNT_MASK; + link_cfg->tps3_supported = (dpcd_data & + DP_MAX_LANE_COUNT_TPS3_SUPPORTED_YES) ? 1 : 0; + + link_cfg->support_enhanced_framing = + (dpcd_data & DP_MAX_LANE_COUNT_ENHANCED_FRAMING_YES) ? + 1 : 0; + + ret = tegra_dc_dp_dpcd_read(dp, DP_MAX_DOWNSPREAD, &dpcd_data); + if (ret) + return ret; + link_cfg->downspread = (dpcd_data & DP_MAX_DOWNSPREAD_VAL_0_5_PCT) ? + 1 : 0; + + ret = tegra_dc_dp_dpcd_read(dp, NV_DPCD_TRAINING_AUX_RD_INTERVAL, + &link_cfg->aux_rd_interval); + if (ret) + return ret; + ret = tegra_dc_dp_dpcd_read(dp, DP_MAX_LINK_RATE, + &link_cfg->max_link_bw); + if (ret) + return ret; + + /* + * Set to a high value for link training and attach. + * Will be re-programmed when dp is enabled. + */ + link_cfg->drive_current = drive_current; + link_cfg->preemphasis = preemphasis; + link_cfg->postcursor = postcursor; + + ret = tegra_dc_dp_dpcd_read(dp, DP_EDP_CONFIGURATION_CAP, &dpcd_data); + if (ret) + return ret; + + link_cfg->alt_scramber_reset_cap = + (dpcd_data & DP_EDP_CONFIGURATION_CAP_ASC_RESET_YES) ? + 1 : 0; + link_cfg->only_enhanced_framing = + (dpcd_data & DP_EDP_CONFIGURATION_CAP_FRAMING_CHANGE_YES) ? + 1 : 0; + + link_cfg->lane_count = link_cfg->max_lane_count; + link_cfg->link_bw = link_cfg->max_link_bw; + link_cfg->enhanced_framing = link_cfg->support_enhanced_framing; + link_cfg->frame_in_ms = (1000 / 60) + 1; + + tegra_dc_dp_calc_config(dp, timing, link_cfg); + return 0; +} + +static int tegra_dc_dp_set_assr(struct tegra_dp_priv *dp, + struct tegra_dc_sor_data *sor, int ena) +{ + int ret; + + u8 dpcd_data = ena ? + DP_MAIN_LINK_CHANNEL_CODING_SET_ASC_RESET_ENABLE : + DP_MAIN_LINK_CHANNEL_CODING_SET_ASC_RESET_DISABLE; + + ret = tegra_dc_dp_dpcd_write(dp, DP_EDP_CONFIGURATION_SET, + dpcd_data); + if (ret) + return ret; + + /* Also reset the scrambler to 0xfffe */ + tegra_dc_sor_set_internal_panel(sor, ena); + return 0; +} + +static int tegra_dp_set_link_bandwidth(struct tegra_dp_priv *dp, + struct tegra_dc_sor_data *sor, + u8 link_bw) +{ + tegra_dc_sor_set_link_bandwidth(sor, link_bw); + + /* Sink side */ + return tegra_dc_dp_dpcd_write(dp, DP_LINK_BW_SET, link_bw); +} + +static int tegra_dp_set_lane_count(struct tegra_dp_priv *dp, + const struct tegra_dp_link_config *link_cfg, + struct tegra_dc_sor_data *sor) +{ + u8 dpcd_data; + int ret; + + /* check if panel support enhanched_framing */ + dpcd_data = link_cfg->lane_count; + if (link_cfg->enhanced_framing) + dpcd_data |= DP_LANE_COUNT_SET_ENHANCEDFRAMING_T; + ret = tegra_dc_dp_dpcd_write(dp, DP_LANE_COUNT_SET, dpcd_data); + if (ret) + return ret; + + tegra_dc_sor_set_lane_count(sor, link_cfg->lane_count); + + /* Also power down lanes that will not be used */ + return 0; +} + +static int tegra_dc_dp_link_trained(struct tegra_dp_priv *dp, + const struct tegra_dp_link_config *cfg) +{ + u32 lane; + u8 mask; + u8 data; + int ret; + + for (lane = 0; lane < cfg->lane_count; ++lane) { + ret = tegra_dc_dp_dpcd_read(dp, (lane / 2) ? + DP_LANE2_3_STATUS : DP_LANE0_1_STATUS, + &data); + if (ret) + return ret; + mask = (lane & 1) ? + NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_YES | + NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_YES | + NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_YES : + DP_LANE_CR_DONE | + DP_LANE_CHANNEL_EQ_DONE | + DP_LANE_SYMBOL_LOCKED; + if ((data & mask) != mask) + return -1; + } + return 0; +} + +static int tegra_dp_channel_eq_status(struct tegra_dp_priv *dp, + const struct tegra_dp_link_config *cfg) +{ + u32 cnt; + u32 n_lanes = cfg->lane_count; + u8 data; + u8 ce_done = 1; + int ret; + + for (cnt = 0; cnt < n_lanes / 2; cnt++) { + ret = tegra_dc_dp_dpcd_read(dp, DP_LANE0_1_STATUS + cnt, &data); + if (ret) + return ret; + + if (n_lanes == 1) { + ce_done = (data & (0x1 << + NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_SHIFT)) && + (data & (0x1 << + NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_SHFIT)); + break; + } else if (!(data & (0x1 << + NV_DPCD_STATUS_LANEX_CHN_EQ_DONE_SHIFT)) || + !(data & (0x1 << + NV_DPCD_STATUS_LANEX_SYMBOL_LOCKED_SHFIT)) || + !(data & (0x1 << + NV_DPCD_STATUS_LANEXPLUS1_CHN_EQ_DONE_SHIFT)) || + !(data & (0x1 << + NV_DPCD_STATUS_LANEXPLUS1_SYMBOL_LOCKED_SHIFT))) + return -EIO; + } + + if (ce_done) { + ret = tegra_dc_dp_dpcd_read(dp, + DP_LANE_ALIGN_STATUS_UPDATED, + &data); + if (ret) + return ret; + if (!(data & NV_DPCD_LANE_ALIGN_STATUS_UPDATED_DONE_YES)) + ce_done = 0; + } + + return ce_done ? 0 : -EIO; +} + +static int tegra_dp_clock_recovery_status(struct tegra_dp_priv *dp, + const struct tegra_dp_link_config *cfg) +{ + u32 cnt; + u32 n_lanes = cfg->lane_count; + u8 data_ptr; + int ret; + + for (cnt = 0; cnt < n_lanes / 2; cnt++) { + ret = tegra_dc_dp_dpcd_read(dp, (DP_LANE0_1_STATUS + cnt), + &data_ptr); + if (ret) + return ret; + + if (n_lanes == 1) + return (data_ptr & NV_DPCD_STATUS_LANEX_CR_DONE_YES) ? + 1 : 0; + else if (!(data_ptr & NV_DPCD_STATUS_LANEX_CR_DONE_YES) || + !(data_ptr & (NV_DPCD_STATUS_LANEXPLUS1_CR_DONE_YES))) + return 0; + } + + return 1; +} + +static int tegra_dp_lt_adjust(struct tegra_dp_priv *dp, u32 pe[4], u32 vs[4], + u32 pc[4], u8 pc_supported, + const struct tegra_dp_link_config *cfg) +{ + size_t cnt; + u8 data_ptr; + u32 n_lanes = cfg->lane_count; + int ret; + + for (cnt = 0; cnt < n_lanes / 2; cnt++) { + ret = tegra_dc_dp_dpcd_read(dp, DP_ADJUST_REQUEST_LANE0_1 + cnt, + &data_ptr); + if (ret) + return ret; + pe[2 * cnt] = (data_ptr & NV_DPCD_ADJUST_REQ_LANEX_PE_MASK) >> + NV_DPCD_ADJUST_REQ_LANEX_PE_SHIFT; + vs[2 * cnt] = (data_ptr & NV_DPCD_ADJUST_REQ_LANEX_DC_MASK) >> + NV_DPCD_ADJUST_REQ_LANEX_DC_SHIFT; + pe[1 + 2 * cnt] = + (data_ptr & NV_DPCD_ADJUST_REQ_LANEXPLUS1_PE_MASK) >> + NV_DPCD_ADJUST_REQ_LANEXPLUS1_PE_SHIFT; + vs[1 + 2 * cnt] = + (data_ptr & NV_DPCD_ADJUST_REQ_LANEXPLUS1_DC_MASK) >> + NV_DPCD_ADJUST_REQ_LANEXPLUS1_DC_SHIFT; + } + if (pc_supported) { + ret = tegra_dc_dp_dpcd_read(dp, NV_DPCD_ADJUST_REQ_POST_CURSOR2, + &data_ptr); + if (ret) + return ret; + for (cnt = 0; cnt < n_lanes; cnt++) { + pc[cnt] = (data_ptr >> + NV_DPCD_ADJUST_REQ_POST_CURSOR2_LANE_SHIFT(cnt)) & + NV_DPCD_ADJUST_REQ_POST_CURSOR2_LANE_MASK; + } + } + + return 0; +} + +static void tegra_dp_wait_aux_training(struct tegra_dp_priv *dp, + bool is_clk_recovery, + const struct tegra_dp_link_config *cfg) +{ + if (!cfg->aux_rd_interval) + udelay(is_clk_recovery ? 200 : 500); + else + mdelay(cfg->aux_rd_interval * 4); +} + +static void tegra_dp_tpg(struct tegra_dp_priv *dp, u32 tp, u32 n_lanes, + const struct tegra_dp_link_config *cfg) +{ + u8 data = (tp == training_pattern_disabled) + ? (tp | NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_F) + : (tp | NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_T); + + tegra_dc_sor_set_dp_linkctl(dp->sor, 1, tp, cfg); + tegra_dc_dp_dpcd_write(dp, DP_TRAINING_PATTERN_SET, data); +} + +static int tegra_dp_link_config(struct tegra_dp_priv *dp, + const struct tegra_dp_link_config *link_cfg) +{ + u8 dpcd_data; + u32 retry; + int ret; + + if (link_cfg->lane_count == 0) { + debug("dp: error: lane count is 0. Can not set link config.\n"); + return -ENOLINK; + } + + /* Set power state if it is not in normal level */ + ret = tegra_dc_dp_dpcd_read(dp, DP_SET_POWER, &dpcd_data); + if (ret) + return ret; + + if (dpcd_data == DP_SET_POWER_D3) { + dpcd_data = DP_SET_POWER_D0; + + /* DP spec requires 3 retries */ + for (retry = 3; retry > 0; --retry) { + ret = tegra_dc_dp_dpcd_write(dp, DP_SET_POWER, + dpcd_data); + if (!ret) + break; + if (retry == 1) { + debug("dp: Failed to set DP panel power\n"); + return ret; + } + } + } + + /* Enable ASSR if possible */ + if (link_cfg->alt_scramber_reset_cap) { + ret = tegra_dc_dp_set_assr(dp, dp->sor, 1); + if (ret) + return ret; + } + + ret = tegra_dp_set_link_bandwidth(dp, dp->sor, link_cfg->link_bw); + if (ret) { + debug("dp: Failed to set link bandwidth\n"); + return ret; + } + ret = tegra_dp_set_lane_count(dp, link_cfg, dp->sor); + if (ret) { + debug("dp: Failed to set lane count\n"); + return ret; + } + tegra_dc_sor_set_dp_linkctl(dp->sor, 1, training_pattern_none, + link_cfg); + + return 0; +} + +static int tegra_dp_lower_link_config(struct tegra_dp_priv *dp, + const struct display_timing *timing, + struct tegra_dp_link_config *cfg) +{ + struct tegra_dp_link_config tmp_cfg; + int ret; + + tmp_cfg = *cfg; + cfg->is_valid = 0; + + ret = _tegra_dp_lower_link_config(dp, cfg); + if (!ret) + ret = tegra_dc_dp_calc_config(dp, timing, cfg); + if (!ret) + ret = tegra_dp_link_config(dp, cfg); + if (ret) + goto fail; + + return 0; + +fail: + *cfg = tmp_cfg; + tegra_dp_link_config(dp, &tmp_cfg); + return ret; +} + +static int tegra_dp_lt_config(struct tegra_dp_priv *dp, u32 pe[4], u32 vs[4], + u32 pc[4], const struct tegra_dp_link_config *cfg) +{ + struct tegra_dc_sor_data *sor = dp->sor; + u32 n_lanes = cfg->lane_count; + u8 pc_supported = cfg->tps3_supported; + u32 cnt; + u32 val; + + for (cnt = 0; cnt < n_lanes; cnt++) { + u32 mask = 0; + u32 pe_reg, vs_reg, pc_reg; + u32 shift = 0; + + switch (cnt) { + case 0: + mask = PR_LANE2_DP_LANE0_MASK; + shift = PR_LANE2_DP_LANE0_SHIFT; + break; + case 1: + mask = PR_LANE1_DP_LANE1_MASK; + shift = PR_LANE1_DP_LANE1_SHIFT; + break; + case 2: + mask = PR_LANE0_DP_LANE2_MASK; + shift = PR_LANE0_DP_LANE2_SHIFT; + break; + case 3: + mask = PR_LANE3_DP_LANE3_MASK; + shift = PR_LANE3_DP_LANE3_SHIFT; + break; + default: + debug("dp: incorrect lane cnt\n"); + return -EINVAL; + } + + pe_reg = tegra_dp_pe_regs[pc[cnt]][vs[cnt]][pe[cnt]]; + vs_reg = tegra_dp_vs_regs[pc[cnt]][vs[cnt]][pe[cnt]]; + pc_reg = tegra_dp_pc_regs[pc[cnt]][vs[cnt]][pe[cnt]]; + + tegra_dp_set_pe_vs_pc(sor, mask, pe_reg << shift, + vs_reg << shift, pc_reg << shift, + pc_supported); + } + + tegra_dp_disable_tx_pu(dp->sor); + udelay(20); + + for (cnt = 0; cnt < n_lanes; cnt++) { + u32 max_vs_flag = tegra_dp_is_max_vs(pe[cnt], vs[cnt]); + u32 max_pe_flag = tegra_dp_is_max_pe(pe[cnt], vs[cnt]); + + val = (vs[cnt] << NV_DPCD_TRAINING_LANEX_SET_DC_SHIFT) | + (max_vs_flag ? + NV_DPCD_TRAINING_LANEX_SET_DC_MAX_REACHED_T : + NV_DPCD_TRAINING_LANEX_SET_DC_MAX_REACHED_F) | + (pe[cnt] << NV_DPCD_TRAINING_LANEX_SET_PE_SHIFT) | + (max_pe_flag ? + NV_DPCD_TRAINING_LANEX_SET_PE_MAX_REACHED_T : + NV_DPCD_TRAINING_LANEX_SET_PE_MAX_REACHED_F); + tegra_dc_dp_dpcd_write(dp, (DP_TRAINING_LANE0_SET + cnt), val); + } + + if (pc_supported) { + for (cnt = 0; cnt < n_lanes / 2; cnt++) { + u32 max_pc_flag0 = tegra_dp_is_max_pc(pc[cnt]); + u32 max_pc_flag1 = tegra_dp_is_max_pc(pc[cnt + 1]); + val = (pc[cnt] << NV_DPCD_LANEX_SET2_PC2_SHIFT) | + (max_pc_flag0 ? + NV_DPCD_LANEX_SET2_PC2_MAX_REACHED_T : + NV_DPCD_LANEX_SET2_PC2_MAX_REACHED_F) | + (pc[cnt + 1] << + NV_DPCD_LANEXPLUS1_SET2_PC2_SHIFT) | + (max_pc_flag1 ? + NV_DPCD_LANEXPLUS1_SET2_PC2_MAX_REACHED_T : + NV_DPCD_LANEXPLUS1_SET2_PC2_MAX_REACHED_F); + tegra_dc_dp_dpcd_write(dp, + NV_DPCD_TRAINING_LANE0_1_SET2 + + cnt, val); + } + } + + return 0; +} + +static int _tegra_dp_channel_eq(struct tegra_dp_priv *dp, u32 pe[4], + u32 vs[4], u32 pc[4], u8 pc_supported, + u32 n_lanes, + const struct tegra_dp_link_config *cfg) +{ + u32 retry_cnt; + + for (retry_cnt = 0; retry_cnt < 4; retry_cnt++) { + int ret; + + if (retry_cnt) { + ret = tegra_dp_lt_adjust(dp, pe, vs, pc, pc_supported, + cfg); + if (ret) + return ret; + tegra_dp_lt_config(dp, pe, vs, pc, cfg); + } + + tegra_dp_wait_aux_training(dp, false, cfg); + + if (!tegra_dp_clock_recovery_status(dp, cfg)) { + debug("dp: CR failed in channel EQ sequence!\n"); + break; + } + + if (!tegra_dp_channel_eq_status(dp, cfg)) + return 0; + } + + return -EIO; +} + +static int tegra_dp_channel_eq(struct tegra_dp_priv *dp, u32 pe[4], u32 vs[4], + u32 pc[4], + const struct tegra_dp_link_config *cfg) +{ + u32 n_lanes = cfg->lane_count; + u8 pc_supported = cfg->tps3_supported; + int ret; + u32 tp_src = training_pattern_2; + + if (pc_supported) + tp_src = training_pattern_3; + + tegra_dp_tpg(dp, tp_src, n_lanes, cfg); + + ret = _tegra_dp_channel_eq(dp, pe, vs, pc, pc_supported, n_lanes, cfg); + + tegra_dp_tpg(dp, training_pattern_disabled, n_lanes, cfg); + + return ret; +} + +static int _tegra_dp_clk_recovery(struct tegra_dp_priv *dp, u32 pe[4], + u32 vs[4], u32 pc[4], u8 pc_supported, + u32 n_lanes, + const struct tegra_dp_link_config *cfg) +{ + u32 vs_temp[4]; + u32 retry_cnt = 0; + + do { + tegra_dp_lt_config(dp, pe, vs, pc, cfg); + tegra_dp_wait_aux_training(dp, true, cfg); + + if (tegra_dp_clock_recovery_status(dp, cfg)) + return 0; + + memcpy(vs_temp, vs, sizeof(vs_temp)); + tegra_dp_lt_adjust(dp, pe, vs, pc, pc_supported, cfg); + + if (memcmp(vs_temp, vs, sizeof(vs_temp))) + retry_cnt = 0; + else + ++retry_cnt; + } while (retry_cnt < 5); + + return -EIO; +} + +static int tegra_dp_clk_recovery(struct tegra_dp_priv *dp, u32 pe[4], + u32 vs[4], u32 pc[4], + const struct tegra_dp_link_config *cfg) +{ + u32 n_lanes = cfg->lane_count; + u8 pc_supported = cfg->tps3_supported; + int err; + + tegra_dp_tpg(dp, training_pattern_1, n_lanes, cfg); + + err = _tegra_dp_clk_recovery(dp, pe, vs, pc, pc_supported, n_lanes, + cfg); + if (err < 0) + tegra_dp_tpg(dp, training_pattern_disabled, n_lanes, cfg); + + return err; +} + +static int tegra_dc_dp_full_link_training(struct tegra_dp_priv *dp, + const struct display_timing *timing, + struct tegra_dp_link_config *cfg) +{ + struct tegra_dc_sor_data *sor = dp->sor; + int err; + u32 pe[4], vs[4], pc[4]; + + tegra_sor_precharge_lanes(sor, cfg); + +retry_cr: + memset(pe, PREEMPHASIS_DISABLED, sizeof(pe)); + memset(vs, DRIVECURRENT_LEVEL0, sizeof(vs)); + memset(pc, POSTCURSOR2_LEVEL0, sizeof(pc)); + + err = tegra_dp_clk_recovery(dp, pe, vs, pc, cfg); + if (err) { + if (!tegra_dp_lower_link_config(dp, timing, cfg)) + goto retry_cr; + + debug("dp: clk recovery failed\n"); + goto fail; + } + + err = tegra_dp_channel_eq(dp, pe, vs, pc, cfg); + if (err) { + if (!tegra_dp_lower_link_config(dp, timing, cfg)) + goto retry_cr; + + debug("dp: channel equalization failed\n"); + goto fail; + } +#ifdef DEBUG + tegra_dc_dp_dump_link_cfg(dp, cfg); +#endif + return 0; + +fail: + return err; +} + +/* + * All link training functions are ported from kernel dc driver. + * See more details at drivers/video/tegra/dc/dp.c + */ +static int tegra_dc_dp_fast_link_training(struct tegra_dp_priv *dp, + const struct tegra_dp_link_config *link_cfg, + struct tegra_dc_sor_data *sor) +{ + u8 link_bw; + u8 lane_count; + u16 data16; + u32 data32; + u32 size; + u32 status; + int j; + u32 mask = 0xffff >> ((4 - link_cfg->lane_count) * 4); + + tegra_dc_sor_set_lane_parm(sor, link_cfg); + tegra_dc_dp_dpcd_write(dp, DP_MAIN_LINK_CHANNEL_CODING_SET, + DP_SET_ANSI_8B10B); + + /* Send TP1 */ + tegra_dc_sor_set_dp_linkctl(sor, 1, training_pattern_1, link_cfg); + tegra_dc_dp_dpcd_write(dp, DP_TRAINING_PATTERN_SET, + DP_TRAINING_PATTERN_1); + + for (j = 0; j < link_cfg->lane_count; ++j) + tegra_dc_dp_dpcd_write(dp, DP_TRAINING_LANE0_SET + j, 0x24); + udelay(520); + + size = sizeof(data16); + tegra_dc_dpaux_read(dp, DPAUX_DP_AUXCTL_CMD_AUXRD, + DP_LANE0_1_STATUS, (u8 *)&data16, &size, &status); + status = mask & 0x1111; + if ((data16 & status) != status) { + debug("dp: Link training error for TP1 (%#x, status %#x)\n", + data16, status); + return -EFAULT; + } + + /* enable ASSR */ + tegra_dc_dp_set_assr(dp, sor, link_cfg->scramble_ena); + tegra_dc_sor_set_dp_linkctl(sor, 1, training_pattern_3, link_cfg); + + tegra_dc_dp_dpcd_write(dp, DP_TRAINING_PATTERN_SET, + link_cfg->link_bw == 20 ? 0x23 : 0x22); + for (j = 0; j < link_cfg->lane_count; ++j) + tegra_dc_dp_dpcd_write(dp, DP_TRAINING_LANE0_SET + j, 0x24); + udelay(520); + + size = sizeof(data32); + tegra_dc_dpaux_read(dp, DPAUX_DP_AUXCTL_CMD_AUXRD, DP_LANE0_1_STATUS, + (u8 *)&data32, &size, &status); + if ((data32 & mask) != (0x7777 & mask)) { + debug("dp: Link training error for TP2/3 (0x%x)\n", data32); + return -EFAULT; + } + + tegra_dc_sor_set_dp_linkctl(sor, 1, training_pattern_disabled, + link_cfg); + tegra_dc_dp_dpcd_write(dp, DP_TRAINING_PATTERN_SET, 0); + + if (tegra_dc_dp_link_trained(dp, link_cfg)) { + tegra_dc_sor_read_link_config(sor, &link_bw, &lane_count); + debug("Fast link training failed, link bw %d, lane # %d\n", + link_bw, lane_count); + return -EFAULT; + } + + debug("Fast link training succeeded, link bw %d, lane %d\n", + link_cfg->link_bw, link_cfg->lane_count); + + return 0; +} + +static int tegra_dp_do_link_training(struct tegra_dp_priv *dp, + struct tegra_dp_link_config *link_cfg, + const struct display_timing *timing, + struct tegra_dc_sor_data *sor) +{ + u8 link_bw; + u8 lane_count; + int ret; + + if (DO_FAST_LINK_TRAINING) { + ret = tegra_dc_dp_fast_link_training(dp, link_cfg, sor); + if (ret) { + debug("dp: fast link training failed\n"); + } else { + /* + * set to a known-good drive setting if fast link + * succeeded. Ignore any error. + */ + ret = tegra_dc_sor_set_voltage_swing(dp->sor, link_cfg); + if (ret) + debug("Failed to set voltage swing\n"); + } + } else { + ret = -ENOSYS; + } + if (ret) { + /* Try full link training then */ + ret = tegra_dc_dp_full_link_training(dp, timing, link_cfg); + if (ret) { + debug("dp: full link training failed\n"); + return ret; + } + } + + /* Everything is good; double check the link config */ + tegra_dc_sor_read_link_config(sor, &link_bw, &lane_count); + + if ((link_cfg->link_bw == link_bw) && + (link_cfg->lane_count == lane_count)) + return 0; + else + return -EFAULT; +} + +static int tegra_dc_dp_explore_link_cfg(struct tegra_dp_priv *dp, + struct tegra_dp_link_config *link_cfg, + struct tegra_dc_sor_data *sor, + const struct display_timing *timing) +{ + struct tegra_dp_link_config temp_cfg; + + if (!timing->pixelclock.typ || !timing->hactive.typ || + !timing->vactive.typ) { + debug("dp: error mode configuration"); + return -EINVAL; + } + if (!link_cfg->max_link_bw || !link_cfg->max_lane_count) { + debug("dp: error link configuration"); + return -EINVAL; + } + + link_cfg->is_valid = 0; + + memcpy(&temp_cfg, link_cfg, sizeof(temp_cfg)); + + temp_cfg.link_bw = temp_cfg.max_link_bw; + temp_cfg.lane_count = temp_cfg.max_lane_count; + + /* + * set to max link config + */ + if ((!tegra_dc_dp_calc_config(dp, timing, &temp_cfg)) && + (!tegra_dp_link_config(dp, &temp_cfg)) && + (!tegra_dp_do_link_training(dp, &temp_cfg, timing, sor))) + /* the max link cfg is doable */ + memcpy(link_cfg, &temp_cfg, sizeof(temp_cfg)); + + return link_cfg->is_valid ? 0 : -EFAULT; +} + +static int tegra_dp_hpd_plug(struct tegra_dp_priv *dp) +{ + const int vdd_to_hpd_delay_ms = 200; + u32 val; + ulong start; + + start = get_timer(0); + do { + val = tegra_dpaux_readl(dp, DPAUX_DP_AUXSTAT); + if (val & DPAUX_DP_AUXSTAT_HPD_STATUS_PLUGGED) + return 0; + udelay(100); + } while (get_timer(start) < vdd_to_hpd_delay_ms); + + return -EIO; +} + +static int tegra_dc_dp_sink_out_of_sync(struct tegra_dp_priv *dp, u32 delay_ms) +{ + u8 dpcd_data; + int out_of_sync; + int ret; + + debug("%s: delay=%d\n", __func__, delay_ms); + mdelay(delay_ms); + ret = tegra_dc_dp_dpcd_read(dp, DP_SINK_STATUS, &dpcd_data); + if (ret) + return ret; + + out_of_sync = !(dpcd_data & DP_SINK_STATUS_PORT0_IN_SYNC); + if (out_of_sync) + debug("SINK receive port 0 out of sync, data=%x\n", dpcd_data); + else + debug("SINK is in synchronization\n"); + + return out_of_sync; +} + +static int tegra_dc_dp_check_sink(struct tegra_dp_priv *dp, + struct tegra_dp_link_config *link_cfg, + const struct display_timing *timing) +{ + const int max_retry = 5; + int delay_frame; + int retries; + + /* + * DP TCON may skip some main stream frames, thus we need to wait + * some delay before reading the DPCD SINK STATUS register, starting + * from 5 + */ + delay_frame = 5; + + retries = max_retry; + do { + int ret; + + if (!tegra_dc_dp_sink_out_of_sync(dp, link_cfg->frame_in_ms * + delay_frame)) + return 0; + + debug("%s: retries left %d\n", __func__, retries); + if (!retries--) { + printf("DP: Out of sync after %d retries\n", max_retry); + return -EIO; + } + ret = tegra_dc_sor_detach(dp->sor); + if (ret) + return ret; + if (tegra_dc_dp_explore_link_cfg(dp, link_cfg, dp->sor, + timing)) { + debug("dp: %s: error to configure link\n", __func__); + continue; + } + + tegra_dc_sor_set_power_state(dp->sor, 1); + tegra_dc_sor_attach(dp->sor, link_cfg, timing); + + /* Increase delay_frame for next try in case the sink is + skipping more frames */ + delay_frame += 10; + } while (1); +} + +int tegra_dp_enable(struct udevice *dev, int panel_bpp, + const struct display_timing *timing) +{ + struct tegra_dp_priv *priv = dev_get_priv(dev); + struct tegra_dp_link_config slink_cfg, *link_cfg = &slink_cfg; + struct tegra_dc_sor_data *sor; + int data; + int retry; + int ret; + + memset(link_cfg, '\0', sizeof(*link_cfg)); + link_cfg->is_valid = 0; + link_cfg->scramble_ena = 1; + + tegra_dc_dpaux_enable(priv); + + if (tegra_dp_hpd_plug(priv) < 0) { + debug("dp: hpd plug failed\n"); + return -EIO; + } + + link_cfg->bits_per_pixel = panel_bpp; + if (tegra_dc_dp_init_max_link_cfg(timing, priv, link_cfg)) { + debug("dp: failed to init link configuration\n"); + return -ENOLINK; + } + + ret = tegra_dc_sor_init(&sor); + if (ret) + return ret; + priv->sor = sor; + ret = tegra_dc_sor_enable_dp(sor, link_cfg); + if (ret) + return ret; + + tegra_dc_sor_set_panel_power(sor, 1); + + /* Write power on to DPCD */ + data = DP_SET_POWER_D0; + retry = 0; + do { + ret = tegra_dc_dp_dpcd_write(priv, DP_SET_POWER, data); + } while ((retry++ < DP_POWER_ON_MAX_TRIES) && ret); + + if (ret || retry >= DP_POWER_ON_MAX_TRIES) { + debug("dp: failed to power on panel (0x%x)\n", ret); + return -ENETUNREACH; + goto error_enable; + } + + /* Confirm DP plugging status */ + if (!(tegra_dpaux_readl(priv, DPAUX_DP_AUXSTAT) & + DPAUX_DP_AUXSTAT_HPD_STATUS_PLUGGED)) { + debug("dp: could not detect HPD\n"); + return -ENXIO; + } + + /* Check DP version */ + if (tegra_dc_dp_dpcd_read(priv, DP_DPCD_REV, &priv->revision)) { + debug("dp: failed to read the revision number from sink\n"); + return -EIO; + } + + if (tegra_dc_dp_explore_link_cfg(priv, link_cfg, sor, timing)) { + debug("dp: error configuring link\n"); + return -ENOMEDIUM; + } + + tegra_dc_sor_set_power_state(sor, 1); + ret = tegra_dc_sor_attach(sor, link_cfg, timing); + if (ret && ret != -EEXIST) + return ret; + + /* + * This takes a long time, but can apparently resolve a failure to + * bring up the display correctly. + */ + if (0) { + ret = tegra_dc_dp_check_sink(priv, link_cfg, timing); + if (ret) + return ret; + } + + /* Power down the unused lanes to save power - a few hundred mW */ + tegra_dc_sor_power_down_unused_lanes(sor, link_cfg); + + priv->enabled = true; +error_enable: + return 0; +} + +static int tegra_dp_ofdata_to_platdata(struct udevice *dev) +{ + struct tegra_dp_plat *plat = dev_get_platdata(dev); + const void *blob = gd->fdt_blob; + + plat->base = fdtdec_get_addr(blob, dev->of_offset, "reg"); + + return 0; +} + +static int tegra_dp_read_edid(struct udevice *dev, u8 *buf, int buf_size) +{ + struct tegra_dp_priv *priv = dev_get_priv(dev); + const int tegra_edid_i2c_address = 0x50; + u32 aux_stat = 0; + + tegra_dc_dpaux_enable(priv); + + return tegra_dc_i2c_aux_read(priv, tegra_edid_i2c_address, 0, buf, + buf_size, &aux_stat); +} + +static const struct dm_display_port_ops dp_tegra_ops = { + .read_edid = tegra_dp_read_edid, + .enable = tegra_dp_enable, +}; + +static int dp_tegra_probe(struct udevice *dev) +{ + struct tegra_dp_plat *plat = dev_get_platdata(dev); + struct tegra_dp_priv *priv = dev_get_priv(dev); + + priv->regs = (struct dpaux_ctlr *)plat->base; + priv->enabled = false; + + return 0; +} + +static const struct udevice_id tegra_dp_ids[] = { + { .compatible = "nvidia,tegra124-dpaux" }, + { } +}; + +U_BOOT_DRIVER(dp_tegra) = { + .name = "dpaux_tegra", + .id = UCLASS_DISPLAY_PORT, + .of_match = tegra_dp_ids, + .ofdata_to_platdata = tegra_dp_ofdata_to_platdata, + .probe = dp_tegra_probe, + .ops = &dp_tegra_ops, + .priv_auto_alloc_size = sizeof(struct tegra_dp_priv), + .platdata_auto_alloc_size = sizeof(struct tegra_dp_plat), +}; diff --git a/drivers/video/tegra124/sor.c b/drivers/video/tegra124/sor.c new file mode 100644 index 0000000..aa3d80c --- /dev/null +++ b/drivers/video/tegra124/sor.c @@ -0,0 +1,1024 @@ +/* + * Copyright (c) 2011-2013, NVIDIA Corporation. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <errno.h> +#include <fdtdec.h> +#include <malloc.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch-tegra/dc.h> +#include "displayport.h" +#include "sor.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define DEBUG_SOR 0 + +#define APBDEV_PMC_DPD_SAMPLE 0x20 +#define APBDEV_PMC_DPD_SAMPLE_ON_DISABLE 0 +#define APBDEV_PMC_DPD_SAMPLE_ON_ENABLE 1 +#define APBDEV_PMC_SEL_DPD_TIM 0x1c8 +#define APBDEV_PMC_SEL_DPD_TIM_SEL_DPD_TIM_DEFAULT 0x7f +#define APBDEV_PMC_IO_DPD2_REQ 0x1c0 +#define APBDEV_PMC_IO_DPD2_REQ_LVDS_SHIFT 25 +#define APBDEV_PMC_IO_DPD2_REQ_LVDS_OFF (0 << 25) +#define APBDEV_PMC_IO_DPD2_REQ_LVDS_ON (1 << 25) +#define APBDEV_PMC_IO_DPD2_REQ_CODE_SHIFT 30 +#define APBDEV_PMC_IO_DPD2_REQ_CODE_DEFAULT_MASK (0x3 << 30) +#define APBDEV_PMC_IO_DPD2_REQ_CODE_IDLE (0 << 30) +#define APBDEV_PMC_IO_DPD2_REQ_CODE_DPD_OFF (1 << 30) +#define APBDEV_PMC_IO_DPD2_REQ_CODE_DPD_ON (2 << 30) +#define APBDEV_PMC_IO_DPD2_STATUS 0x1c4 +#define APBDEV_PMC_IO_DPD2_STATUS_LVDS_SHIFT 25 +#define APBDEV_PMC_IO_DPD2_STATUS_LVDS_OFF (0 << 25) +#define APBDEV_PMC_IO_DPD2_STATUS_LVDS_ON (1 << 25) + +static inline u32 tegra_sor_readl(struct tegra_dc_sor_data *sor, u32 reg) +{ + return readl((u32 *)sor->base + reg); +} + +static inline void tegra_sor_writel(struct tegra_dc_sor_data *sor, u32 reg, + u32 val) +{ + writel(val, (u32 *)sor->base + reg); +} + +static inline void tegra_sor_write_field(struct tegra_dc_sor_data *sor, + u32 reg, u32 mask, u32 val) +{ + u32 reg_val = tegra_sor_readl(sor, reg); + reg_val &= ~mask; + reg_val |= val; + tegra_sor_writel(sor, reg, reg_val); +} + +void tegra_dp_disable_tx_pu(struct tegra_dc_sor_data *sor) +{ + tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), + DP_PADCTL_TX_PU_MASK, DP_PADCTL_TX_PU_DISABLE); +} + +void tegra_dp_set_pe_vs_pc(struct tegra_dc_sor_data *sor, u32 mask, u32 pe_reg, + u32 vs_reg, u32 pc_reg, u8 pc_supported) +{ + tegra_sor_write_field(sor, PR(sor->portnum), mask, pe_reg); + tegra_sor_write_field(sor, DC(sor->portnum), mask, vs_reg); + if (pc_supported) { + tegra_sor_write_field(sor, POSTCURSOR(sor->portnum), mask, + pc_reg); + } +} + +static int tegra_dc_sor_poll_register(struct tegra_dc_sor_data *sor, u32 reg, + u32 mask, u32 exp_val, + int poll_interval_us, int timeout_ms) +{ + u32 reg_val = 0; + ulong start; + + start = get_timer(0); + do { + reg_val = tegra_sor_readl(sor, reg); + if (((reg_val & mask) == exp_val)) + return 0; + udelay(poll_interval_us); + } while (get_timer(start) < timeout_ms); + + debug("sor_poll_register 0x%x: timeout, (reg_val)0x%08x & (mask)0x%08x != (exp_val)0x%08x\n", + reg, reg_val, mask, exp_val); + + return -ETIMEDOUT; +} + +int tegra_dc_sor_set_power_state(struct tegra_dc_sor_data *sor, int pu_pd) +{ + u32 reg_val; + u32 orig_val; + + orig_val = tegra_sor_readl(sor, PWR); + + reg_val = pu_pd ? PWR_NORMAL_STATE_PU : + PWR_NORMAL_STATE_PD; /* normal state only */ + + if (reg_val == orig_val) + return 0; /* No update needed */ + + reg_val |= PWR_SETTING_NEW_TRIGGER; + tegra_sor_writel(sor, PWR, reg_val); + + /* Poll to confirm it is done */ + if (tegra_dc_sor_poll_register(sor, PWR, + PWR_SETTING_NEW_DEFAULT_MASK, + PWR_SETTING_NEW_DONE, + 100, TEGRA_SOR_TIMEOUT_MS)) { + debug("dc timeout waiting for SOR_PWR = NEW_DONE\n"); + return -EFAULT; + } + + return 0; +} + +void tegra_dc_sor_set_dp_linkctl(struct tegra_dc_sor_data *sor, int ena, + u8 training_pattern, + const struct tegra_dp_link_config *link_cfg) +{ + u32 reg_val; + + reg_val = tegra_sor_readl(sor, DP_LINKCTL(sor->portnum)); + + if (ena) + reg_val |= DP_LINKCTL_ENABLE_YES; + else + reg_val &= DP_LINKCTL_ENABLE_NO; + + reg_val &= ~DP_LINKCTL_TUSIZE_MASK; + reg_val |= (link_cfg->tu_size << DP_LINKCTL_TUSIZE_SHIFT); + + if (link_cfg->enhanced_framing) + reg_val |= DP_LINKCTL_ENHANCEDFRAME_ENABLE; + + tegra_sor_writel(sor, DP_LINKCTL(sor->portnum), reg_val); + + switch (training_pattern) { + case training_pattern_1: + tegra_sor_writel(sor, DP_TPG, 0x41414141); + break; + case training_pattern_2: + case training_pattern_3: + reg_val = (link_cfg->link_bw == SOR_LINK_SPEED_G5_4) ? + 0x43434343 : 0x42424242; + tegra_sor_writel(sor, DP_TPG, reg_val); + break; + default: + tegra_sor_writel(sor, DP_TPG, 0x50505050); + break; + } +} + +static int tegra_dc_sor_enable_lane_sequencer(struct tegra_dc_sor_data *sor, + int pu, int is_lvds) +{ + u32 reg_val; + + /* SOR lane sequencer */ + if (pu) { + reg_val = LANE_SEQ_CTL_SETTING_NEW_TRIGGER | + LANE_SEQ_CTL_SEQUENCE_DOWN | + LANE_SEQ_CTL_NEW_POWER_STATE_PU; + } else { + reg_val = LANE_SEQ_CTL_SETTING_NEW_TRIGGER | + LANE_SEQ_CTL_SEQUENCE_UP | + LANE_SEQ_CTL_NEW_POWER_STATE_PD; + } + + if (is_lvds) + reg_val |= 15 << LANE_SEQ_CTL_DELAY_SHIFT; + else + reg_val |= 1 << LANE_SEQ_CTL_DELAY_SHIFT; + + tegra_sor_writel(sor, LANE_SEQ_CTL, reg_val); + + if (tegra_dc_sor_poll_register(sor, LANE_SEQ_CTL, + LANE_SEQ_CTL_SETTING_MASK, + LANE_SEQ_CTL_SETTING_NEW_DONE, + 100, TEGRA_SOR_TIMEOUT_MS)) { + debug("dp: timeout while waiting for SOR lane sequencer to power down lanes\n"); + return -1; + } + + return 0; +} + +static int tegra_dc_sor_power_dplanes(struct tegra_dc_sor_data *sor, + u32 lane_count, int pu) +{ + u32 reg_val; + + reg_val = tegra_sor_readl(sor, DP_PADCTL(sor->portnum)); + + if (pu) { + switch (lane_count) { + case 4: + reg_val |= (DP_PADCTL_PD_TXD_3_NO | + DP_PADCTL_PD_TXD_2_NO); + /* fall through */ + case 2: + reg_val |= DP_PADCTL_PD_TXD_1_NO; + case 1: + reg_val |= DP_PADCTL_PD_TXD_0_NO; + break; + default: + debug("dp: invalid lane number %d\n", lane_count); + return -1; + } + + tegra_sor_writel(sor, DP_PADCTL(sor->portnum), reg_val); + tegra_dc_sor_set_lane_count(sor, lane_count); + } + + return tegra_dc_sor_enable_lane_sequencer(sor, pu, 0); +} + +void tegra_dc_sor_set_panel_power(struct tegra_dc_sor_data *sor, + int power_up) +{ + u32 reg_val; + + reg_val = tegra_sor_readl(sor, DP_PADCTL(sor->portnum)); + + if (power_up) + reg_val |= DP_PADCTL_PAD_CAL_PD_POWERUP; + else + reg_val &= ~DP_PADCTL_PAD_CAL_PD_POWERUP; + + tegra_sor_writel(sor, DP_PADCTL(sor->portnum), reg_val); +} + +static void tegra_dc_sor_config_pwm(struct tegra_dc_sor_data *sor, u32 pwm_div, + u32 pwm_dutycycle) +{ + tegra_sor_writel(sor, PWM_DIV, pwm_div); + tegra_sor_writel(sor, PWM_CTL, + (pwm_dutycycle & PWM_CTL_DUTY_CYCLE_MASK) | + PWM_CTL_SETTING_NEW_TRIGGER); + + if (tegra_dc_sor_poll_register(sor, PWM_CTL, + PWM_CTL_SETTING_NEW_SHIFT, + PWM_CTL_SETTING_NEW_DONE, + 100, TEGRA_SOR_TIMEOUT_MS)) { + debug("dp: timeout while waiting for SOR PWM setting\n"); + } +} + +static void tegra_dc_sor_set_dp_mode(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg) +{ + u32 reg_val; + + tegra_dc_sor_set_link_bandwidth(sor, link_cfg->link_bw); + + tegra_dc_sor_set_dp_linkctl(sor, 1, training_pattern_none, link_cfg); + reg_val = tegra_sor_readl(sor, DP_CONFIG(sor->portnum)); + reg_val &= ~DP_CONFIG_WATERMARK_MASK; + reg_val |= link_cfg->watermark; + reg_val &= ~DP_CONFIG_ACTIVESYM_COUNT_MASK; + reg_val |= (link_cfg->active_count << + DP_CONFIG_ACTIVESYM_COUNT_SHIFT); + reg_val &= ~DP_CONFIG_ACTIVESYM_FRAC_MASK; + reg_val |= (link_cfg->active_frac << + DP_CONFIG_ACTIVESYM_FRAC_SHIFT); + if (link_cfg->activepolarity) + reg_val |= DP_CONFIG_ACTIVESYM_POLARITY_POSITIVE; + else + reg_val &= ~DP_CONFIG_ACTIVESYM_POLARITY_POSITIVE; + reg_val |= (DP_CONFIG_ACTIVESYM_CNTL_ENABLE | + DP_CONFIG_RD_RESET_VAL_NEGATIVE); + + tegra_sor_writel(sor, DP_CONFIG(sor->portnum), reg_val); + + /* program h/vblank sym */ + tegra_sor_write_field(sor, DP_AUDIO_HBLANK_SYMBOLS, + DP_AUDIO_HBLANK_SYMBOLS_MASK, + link_cfg->hblank_sym); + + tegra_sor_write_field(sor, DP_AUDIO_VBLANK_SYMBOLS, + DP_AUDIO_VBLANK_SYMBOLS_MASK, + link_cfg->vblank_sym); +} + +static inline void tegra_dc_sor_super_update(struct tegra_dc_sor_data *sor) +{ + tegra_sor_writel(sor, SUPER_STATE0, 0); + tegra_sor_writel(sor, SUPER_STATE0, 1); + tegra_sor_writel(sor, SUPER_STATE0, 0); +} + +static inline void tegra_dc_sor_update(struct tegra_dc_sor_data *sor) +{ + tegra_sor_writel(sor, STATE0, 0); + tegra_sor_writel(sor, STATE0, 1); + tegra_sor_writel(sor, STATE0, 0); +} + +static int tegra_dc_sor_io_set_dpd(struct tegra_dc_sor_data *sor, int up) +{ + u32 reg_val; + void *pmc_base = sor->pmc_base; + + if (up) { + writel(APBDEV_PMC_DPD_SAMPLE_ON_ENABLE, + pmc_base + APBDEV_PMC_DPD_SAMPLE); + writel(10, pmc_base + APBDEV_PMC_SEL_DPD_TIM); + } + + reg_val = readl(pmc_base + APBDEV_PMC_IO_DPD2_REQ); + reg_val &= ~(APBDEV_PMC_IO_DPD2_REQ_LVDS_ON || + APBDEV_PMC_IO_DPD2_REQ_CODE_DEFAULT_MASK); + + reg_val = up ? APBDEV_PMC_IO_DPD2_REQ_LVDS_ON | + APBDEV_PMC_IO_DPD2_REQ_CODE_DPD_OFF : + APBDEV_PMC_IO_DPD2_REQ_LVDS_OFF | + APBDEV_PMC_IO_DPD2_REQ_CODE_DPD_ON; + + writel(reg_val, pmc_base + APBDEV_PMC_IO_DPD2_REQ); + + /* Polling */ + u32 temp = 10 * 1000; + do { + udelay(20); + reg_val = readl(pmc_base + APBDEV_PMC_IO_DPD2_STATUS); + if (temp > 20) + temp -= 20; + else + break; + } while ((reg_val & APBDEV_PMC_IO_DPD2_STATUS_LVDS_ON) != 0); + + if ((reg_val & APBDEV_PMC_IO_DPD2_STATUS_LVDS_ON) != 0) { + debug("PMC_IO_DPD2 polling failed (0x%x)\n", reg_val); + return -EIO; + } + + if (up) { + writel(APBDEV_PMC_DPD_SAMPLE_ON_DISABLE, + pmc_base + APBDEV_PMC_DPD_SAMPLE); + } + + return 0; +} + +void tegra_dc_sor_set_internal_panel(struct tegra_dc_sor_data *sor, int is_int) +{ + u32 reg_val; + + reg_val = tegra_sor_readl(sor, DP_SPARE(sor->portnum)); + if (is_int) + reg_val |= DP_SPARE_PANEL_INTERNAL; + else + reg_val &= ~DP_SPARE_PANEL_INTERNAL; + + reg_val |= DP_SPARE_SOR_CLK_SEL_MACRO_SORCLK | + DP_SPARE_SEQ_ENABLE_YES; + tegra_sor_writel(sor, DP_SPARE(sor->portnum), reg_val); +} + +void tegra_dc_sor_read_link_config(struct tegra_dc_sor_data *sor, u8 *link_bw, + u8 *lane_count) +{ + u32 reg_val; + + reg_val = tegra_sor_readl(sor, CLK_CNTRL); + *link_bw = (reg_val & CLK_CNTRL_DP_LINK_SPEED_MASK) + >> CLK_CNTRL_DP_LINK_SPEED_SHIFT; + reg_val = tegra_sor_readl(sor, + DP_LINKCTL(sor->portnum)); + + switch (reg_val & DP_LINKCTL_LANECOUNT_MASK) { + case DP_LINKCTL_LANECOUNT_ZERO: + *lane_count = 0; + break; + case DP_LINKCTL_LANECOUNT_ONE: + *lane_count = 1; + break; + case DP_LINKCTL_LANECOUNT_TWO: + *lane_count = 2; + break; + case DP_LINKCTL_LANECOUNT_FOUR: + *lane_count = 4; + break; + default: + printf("Unknown lane count\n"); + } +} + +void tegra_dc_sor_set_link_bandwidth(struct tegra_dc_sor_data *sor, u8 link_bw) +{ + tegra_sor_write_field(sor, CLK_CNTRL, + CLK_CNTRL_DP_LINK_SPEED_MASK, + link_bw << CLK_CNTRL_DP_LINK_SPEED_SHIFT); +} + +void tegra_dc_sor_set_lane_count(struct tegra_dc_sor_data *sor, u8 lane_count) +{ + u32 reg_val; + + reg_val = tegra_sor_readl(sor, DP_LINKCTL(sor->portnum)); + reg_val &= ~DP_LINKCTL_LANECOUNT_MASK; + switch (lane_count) { + case 0: + break; + case 1: + reg_val |= DP_LINKCTL_LANECOUNT_ONE; + break; + case 2: + reg_val |= DP_LINKCTL_LANECOUNT_TWO; + break; + case 4: + reg_val |= DP_LINKCTL_LANECOUNT_FOUR; + break; + default: + /* 0 should be handled earlier. */ + printf("dp: Invalid lane count %d\n", lane_count); + return; + } + tegra_sor_writel(sor, DP_LINKCTL(sor->portnum), reg_val); +} + +/* + * The SOR power sequencer does not work for t124 so SW has to + * go through the power sequence manually + * Power up steps from spec: + * STEP PDPORT PDPLL PDBG PLLVCOD PLLCAPD E_DPD PDCAL + * 1 1 1 1 1 1 1 1 + * 2 1 1 1 1 1 0 1 + * 3 1 1 0 1 1 0 1 + * 4 1 0 0 0 0 0 1 + * 5 0 0 0 0 0 0 1 + */ +static int tegra_dc_sor_power_up(struct tegra_dc_sor_data *sor, int is_lvds) +{ + int ret; + + if (sor->power_is_up) + return 0; + + /* Set link bw */ + tegra_dc_sor_set_link_bandwidth(sor, is_lvds ? + CLK_CNTRL_DP_LINK_SPEED_LVDS : + CLK_CNTRL_DP_LINK_SPEED_G1_62); + + /* step 1 */ + tegra_sor_write_field(sor, PLL2, + PLL2_AUX7_PORT_POWERDOWN_MASK | /* PDPORT */ + PLL2_AUX6_BANDGAP_POWERDOWN_MASK | /* PDBG */ + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK, /* PLLCAPD */ + PLL2_AUX7_PORT_POWERDOWN_ENABLE | + PLL2_AUX6_BANDGAP_POWERDOWN_ENABLE | + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_ENABLE); + tegra_sor_write_field(sor, PLL0, PLL0_PWR_MASK | /* PDPLL */ + PLL0_VCOPD_MASK, /* PLLVCOPD */ + PLL0_PWR_OFF | PLL0_VCOPD_ASSERT); + tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), + DP_PADCTL_PAD_CAL_PD_POWERDOWN, /* PDCAL */ + DP_PADCTL_PAD_CAL_PD_POWERDOWN); + + /* step 2 */ + ret = tegra_dc_sor_io_set_dpd(sor, 1); + if (ret) + return ret; + udelay(15); + + /* step 3 */ + tegra_sor_write_field(sor, PLL2, + PLL2_AUX6_BANDGAP_POWERDOWN_MASK, + PLL2_AUX6_BANDGAP_POWERDOWN_DISABLE); + udelay(25); + + /* step 4 */ + tegra_sor_write_field(sor, PLL0, + PLL0_PWR_MASK | /* PDPLL */ + PLL0_VCOPD_MASK, /* PLLVCOPD */ + PLL0_PWR_ON | PLL0_VCOPD_RESCIND); + /* PLLCAPD */ + tegra_sor_write_field(sor, PLL2, + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK, + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_DISABLE); + udelay(225); + + /* step 5 PDPORT */ + tegra_sor_write_field(sor, PLL2, + PLL2_AUX7_PORT_POWERDOWN_MASK, + PLL2_AUX7_PORT_POWERDOWN_DISABLE); + + sor->power_is_up = 1; + + return 0; +} + +#if DEBUG_SOR +static void dump_sor_reg(struct tegra_dc_sor_data *sor) +{ +#define DUMP_REG(a) printk(BIOS_INFO, "%-32s %03x %08x\n", \ + #a, a, tegra_sor_readl(sor, a)); + + DUMP_REG(SUPER_STATE0); + DUMP_REG(SUPER_STATE1); + DUMP_REG(STATE0); + DUMP_REG(STATE1); + DUMP_REG(NV_HEAD_STATE0(0)); + DUMP_REG(NV_HEAD_STATE0(1)); + DUMP_REG(NV_HEAD_STATE1(0)); + DUMP_REG(NV_HEAD_STATE1(1)); + DUMP_REG(NV_HEAD_STATE2(0)); + DUMP_REG(NV_HEAD_STATE2(1)); + DUMP_REG(NV_HEAD_STATE3(0)); + DUMP_REG(NV_HEAD_STATE3(1)); + DUMP_REG(NV_HEAD_STATE4(0)); + DUMP_REG(NV_HEAD_STATE4(1)); + DUMP_REG(NV_HEAD_STATE5(0)); + DUMP_REG(NV_HEAD_STATE5(1)); + DUMP_REG(CRC_CNTRL); + DUMP_REG(CLK_CNTRL); + DUMP_REG(CAP); + DUMP_REG(PWR); + DUMP_REG(TEST); + DUMP_REG(PLL0); + DUMP_REG(PLL1); + DUMP_REG(PLL2); + DUMP_REG(PLL3); + DUMP_REG(CSTM); + DUMP_REG(LVDS); + DUMP_REG(CRCA); + DUMP_REG(CRCB); + DUMP_REG(SEQ_CTL); + DUMP_REG(LANE_SEQ_CTL); + DUMP_REG(SEQ_INST(0)); + DUMP_REG(SEQ_INST(1)); + DUMP_REG(SEQ_INST(2)); + DUMP_REG(SEQ_INST(3)); + DUMP_REG(SEQ_INST(4)); + DUMP_REG(SEQ_INST(5)); + DUMP_REG(SEQ_INST(6)); + DUMP_REG(SEQ_INST(7)); + DUMP_REG(SEQ_INST(8)); + DUMP_REG(PWM_DIV); + DUMP_REG(PWM_CTL); + DUMP_REG(MSCHECK); + DUMP_REG(XBAR_CTRL); + DUMP_REG(DP_LINKCTL(0)); + DUMP_REG(DP_LINKCTL(1)); + DUMP_REG(DC(0)); + DUMP_REG(DC(1)); + DUMP_REG(LANE_DRIVE_CURRENT(0)); + DUMP_REG(PR(0)); + DUMP_REG(LANE4_PREEMPHASIS(0)); + DUMP_REG(POSTCURSOR(0)); + DUMP_REG(DP_CONFIG(0)); + DUMP_REG(DP_CONFIG(1)); + DUMP_REG(DP_MN(0)); + DUMP_REG(DP_MN(1)); + DUMP_REG(DP_PADCTL(0)); + DUMP_REG(DP_PADCTL(1)); + DUMP_REG(DP_DEBUG(0)); + DUMP_REG(DP_DEBUG(1)); + DUMP_REG(DP_SPARE(0)); + DUMP_REG(DP_SPARE(1)); + DUMP_REG(DP_TPG); + + return; +} +#endif + +static void tegra_dc_sor_config_panel(struct tegra_dc_sor_data *sor, + int is_lvds, + const struct tegra_dp_link_config *link_cfg, + const struct display_timing *timing) +{ + const int head_num = 0; + u32 reg_val = STATE1_ASY_OWNER_HEAD0 << head_num; + u32 vtotal, htotal; + u32 vsync_end, hsync_end; + u32 vblank_end, hblank_end; + u32 vblank_start, hblank_start; + + reg_val |= is_lvds ? STATE1_ASY_PROTOCOL_LVDS_CUSTOM : + STATE1_ASY_PROTOCOL_DP_A; + reg_val |= STATE1_ASY_SUBOWNER_NONE | + STATE1_ASY_CRCMODE_COMPLETE_RASTER; + + reg_val |= STATE1_ASY_HSYNCPOL_NEGATIVE_TRUE; + reg_val |= STATE1_ASY_VSYNCPOL_NEGATIVE_TRUE; + reg_val |= (link_cfg->bits_per_pixel > 18) ? + STATE1_ASY_PIXELDEPTH_BPP_24_444 : + STATE1_ASY_PIXELDEPTH_BPP_18_444; + + tegra_sor_writel(sor, STATE1, reg_val); + + /* + * Skipping programming NV_HEAD_STATE0, assuming: + * interlacing: PROGRESSIVE, dynamic range: VESA, colorspace: RGB + */ + vtotal = timing->vsync_len.typ + timing->vback_porch.typ + + timing->vactive.typ + timing->vfront_porch.typ; + htotal = timing->hsync_len.typ + timing->hback_porch.typ + + timing->hactive.typ + timing->hfront_porch.typ; + + tegra_sor_writel(sor, NV_HEAD_STATE1(head_num), + vtotal << NV_HEAD_STATE1_VTOTAL_SHIFT | + htotal << NV_HEAD_STATE1_HTOTAL_SHIFT); + + vsync_end = timing->vsync_len.typ - 1; + hsync_end = timing->hsync_len.typ - 1; + tegra_sor_writel(sor, NV_HEAD_STATE2(head_num), + vsync_end << NV_HEAD_STATE2_VSYNC_END_SHIFT | + hsync_end << NV_HEAD_STATE2_HSYNC_END_SHIFT); + + vblank_end = vsync_end + timing->vback_porch.typ; + hblank_end = hsync_end + timing->hback_porch.typ; + tegra_sor_writel(sor, NV_HEAD_STATE3(head_num), + vblank_end << NV_HEAD_STATE3_VBLANK_END_SHIFT | + hblank_end << NV_HEAD_STATE3_HBLANK_END_SHIFT); + + vblank_start = vblank_end + timing->vactive.typ; + hblank_start = hblank_end + timing->hactive.typ; + tegra_sor_writel(sor, NV_HEAD_STATE4(head_num), + vblank_start << NV_HEAD_STATE4_VBLANK_START_SHIFT | + hblank_start << NV_HEAD_STATE4_HBLANK_START_SHIFT); + + /* TODO: adding interlace mode support */ + tegra_sor_writel(sor, NV_HEAD_STATE5(head_num), 0x1); + + tegra_sor_write_field(sor, CSTM, + CSTM_ROTCLK_DEFAULT_MASK | + CSTM_LVDS_EN_ENABLE, + 2 << CSTM_ROTCLK_SHIFT | + is_lvds ? CSTM_LVDS_EN_ENABLE : + CSTM_LVDS_EN_DISABLE); + + tegra_dc_sor_config_pwm(sor, 1024, 1024); +} + +static void tegra_dc_sor_enable_dc(struct dc_ctlr *disp_ctrl) +{ + u32 reg_val = readl(&disp_ctrl->cmd.state_access); + + writel(reg_val | WRITE_MUX_ACTIVE, &disp_ctrl->cmd.state_access); + writel(VSYNC_H_POSITION(1), &disp_ctrl->disp.disp_timing_opt); + + /* Enable DC now - otherwise pure text console may not show. */ + writel(CTRL_MODE_C_DISPLAY << CTRL_MODE_SHIFT, + &disp_ctrl->cmd.disp_cmd); + writel(reg_val, &disp_ctrl->cmd.state_access); +} + +int tegra_dc_sor_enable_dp(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg) +{ + int ret; + + tegra_sor_write_field(sor, CLK_CNTRL, + CLK_CNTRL_DP_CLK_SEL_MASK, + CLK_CNTRL_DP_CLK_SEL_SINGLE_DPCLK); + + tegra_sor_write_field(sor, PLL2, + PLL2_AUX6_BANDGAP_POWERDOWN_MASK, + PLL2_AUX6_BANDGAP_POWERDOWN_DISABLE); + udelay(25); + + tegra_sor_write_field(sor, PLL3, + PLL3_PLLVDD_MODE_MASK, + PLL3_PLLVDD_MODE_V3_3); + tegra_sor_writel(sor, PLL0, + 0xf << PLL0_ICHPMP_SHFIT | + 0x3 << PLL0_VCOCAP_SHIFT | + PLL0_PLLREG_LEVEL_V45 | + PLL0_RESISTORSEL_EXT | + PLL0_PWR_ON | PLL0_VCOPD_RESCIND); + tegra_sor_write_field(sor, PLL2, + PLL2_AUX1_SEQ_MASK | + PLL2_AUX9_LVDSEN_OVERRIDE | + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK, + PLL2_AUX1_SEQ_PLLCAPPD_OVERRIDE | + PLL2_AUX9_LVDSEN_OVERRIDE | + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_DISABLE); + tegra_sor_writel(sor, PLL1, PLL1_TERM_COMPOUT_HIGH | + PLL1_TMDS_TERM_ENABLE); + + if (tegra_dc_sor_poll_register(sor, PLL2, + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK, + PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_DISABLE, + 100, TEGRA_SOR_TIMEOUT_MS)) { + printf("DP failed to lock PLL\n"); + return -EIO; + } + + tegra_sor_write_field(sor, PLL2, PLL2_AUX2_MASK | + PLL2_AUX7_PORT_POWERDOWN_MASK, + PLL2_AUX2_OVERRIDE_POWERDOWN | + PLL2_AUX7_PORT_POWERDOWN_DISABLE); + + ret = tegra_dc_sor_power_up(sor, 0); + if (ret) { + debug("DP failed to power up\n"); + return ret; + } + + /* re-enable SOR clock */ + clock_sor_enable_edp_clock(); + + /* Power up lanes */ + tegra_dc_sor_power_dplanes(sor, link_cfg->lane_count, 1); + + tegra_dc_sor_set_dp_mode(sor, link_cfg); + debug("%s ret\n", __func__); + + return 0; +} + +int tegra_dc_sor_attach(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg, + const struct display_timing *timing) +{ + const void *blob = gd->fdt_blob; + struct dc_ctlr *disp_ctrl; + u32 reg_val; + int node; + + /* Use the first display controller */ + debug("%s\n", __func__); + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_DC); + if (node < 0) + return -ENOENT; + disp_ctrl = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg"); + + tegra_dc_sor_enable_dc(disp_ctrl); + tegra_dc_sor_config_panel(sor, 0, link_cfg, timing); + + writel(0x9f00, &disp_ctrl->cmd.state_ctrl); + writel(0x9f, &disp_ctrl->cmd.state_ctrl); + + writel(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE | + PW4_ENABLE | PM0_ENABLE | PM1_ENABLE, + &disp_ctrl->cmd.disp_pow_ctrl); + + reg_val = tegra_sor_readl(sor, TEST); + if (reg_val & TEST_ATTACHED_TRUE) + return -EEXIST; + + tegra_sor_writel(sor, SUPER_STATE1, + SUPER_STATE1_ATTACHED_NO); + + /* + * Enable display2sor clock at least 2 cycles before DC start, + * to clear sor internal valid signal. + */ + writel(SOR_ENABLE, &disp_ctrl->disp.disp_win_opt); + writel(GENERAL_ACT_REQ, &disp_ctrl->cmd.state_ctrl); + writel(0, &disp_ctrl->disp.disp_win_opt); + writel(GENERAL_ACT_REQ, &disp_ctrl->cmd.state_ctrl); + + /* Attach head */ + tegra_dc_sor_update(sor); + tegra_sor_writel(sor, SUPER_STATE1, + SUPER_STATE1_ATTACHED_YES); + tegra_sor_writel(sor, SUPER_STATE1, + SUPER_STATE1_ATTACHED_YES | + SUPER_STATE1_ASY_HEAD_OP_AWAKE | + SUPER_STATE1_ASY_ORMODE_NORMAL); + tegra_dc_sor_super_update(sor); + + /* Enable dc */ + reg_val = readl(&disp_ctrl->cmd.state_access); + writel(reg_val | WRITE_MUX_ACTIVE, &disp_ctrl->cmd.state_access); + writel(CTRL_MODE_C_DISPLAY << CTRL_MODE_SHIFT, + &disp_ctrl->cmd.disp_cmd); + writel(SOR_ENABLE, &disp_ctrl->disp.disp_win_opt); + writel(reg_val, &disp_ctrl->cmd.state_access); + + if (tegra_dc_sor_poll_register(sor, TEST, + TEST_ACT_HEAD_OPMODE_DEFAULT_MASK, + TEST_ACT_HEAD_OPMODE_AWAKE, + 100, + TEGRA_SOR_ATTACH_TIMEOUT_MS)) { + printf("dc timeout waiting for OPMOD = AWAKE\n"); + return -ETIMEDOUT; + } else { + debug("%s: sor is attached\n", __func__); + } + +#if DEBUG_SOR + dump_sor_reg(sor); +#endif + debug("%s: ret=%d\n", __func__, 0); + + return 0; +} + +void tegra_dc_sor_set_lane_parm(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg) +{ + tegra_sor_writel(sor, LANE_DRIVE_CURRENT(sor->portnum), + link_cfg->drive_current); + tegra_sor_writel(sor, PR(sor->portnum), + link_cfg->preemphasis); + tegra_sor_writel(sor, POSTCURSOR(sor->portnum), + link_cfg->postcursor); + tegra_sor_writel(sor, LVDS, 0); + + tegra_dc_sor_set_link_bandwidth(sor, link_cfg->link_bw); + tegra_dc_sor_set_lane_count(sor, link_cfg->lane_count); + + tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), + DP_PADCTL_TX_PU_ENABLE | + DP_PADCTL_TX_PU_VALUE_DEFAULT_MASK, + DP_PADCTL_TX_PU_ENABLE | + 2 << DP_PADCTL_TX_PU_VALUE_SHIFT); + + /* Precharge */ + tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), 0xf0, 0xf0); + udelay(20); + + tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), 0xf0, 0x0); +} + +int tegra_dc_sor_set_voltage_swing(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg) +{ + u32 drive_current = 0; + u32 pre_emphasis = 0; + + /* Set to a known-good pre-calibrated setting */ + switch (link_cfg->link_bw) { + case SOR_LINK_SPEED_G1_62: + case SOR_LINK_SPEED_G2_7: + drive_current = 0x13131313; + pre_emphasis = 0; + break; + case SOR_LINK_SPEED_G5_4: + debug("T124 does not support 5.4G link clock.\n"); + default: + debug("Invalid sor link bandwidth: %d\n", link_cfg->link_bw); + return -ENOLINK; + } + + tegra_sor_writel(sor, LANE_DRIVE_CURRENT(sor->portnum), drive_current); + tegra_sor_writel(sor, PR(sor->portnum), pre_emphasis); + + return 0; +} + +void tegra_dc_sor_power_down_unused_lanes(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg) +{ + u32 pad_ctrl = 0; + int err = 0; + + switch (link_cfg->lane_count) { + case 4: + pad_ctrl = DP_PADCTL_PD_TXD_0_NO | + DP_PADCTL_PD_TXD_1_NO | + DP_PADCTL_PD_TXD_2_NO | + DP_PADCTL_PD_TXD_3_NO; + break; + case 2: + pad_ctrl = DP_PADCTL_PD_TXD_0_NO | + DP_PADCTL_PD_TXD_1_NO | + DP_PADCTL_PD_TXD_2_YES | + DP_PADCTL_PD_TXD_3_YES; + break; + case 1: + pad_ctrl = DP_PADCTL_PD_TXD_0_NO | + DP_PADCTL_PD_TXD_1_YES | + DP_PADCTL_PD_TXD_2_YES | + DP_PADCTL_PD_TXD_3_YES; + break; + default: + printf("Invalid sor lane count: %u\n", link_cfg->lane_count); + return; + } + + pad_ctrl |= DP_PADCTL_PAD_CAL_PD_POWERDOWN; + tegra_sor_writel(sor, DP_PADCTL(sor->portnum), pad_ctrl); + + err = tegra_dc_sor_enable_lane_sequencer(sor, 0, 0); + if (err) { + debug("Wait for lane power down failed: %d\n", err); + return; + } +} + +int tegra_sor_precharge_lanes(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *cfg) +{ + u32 val = 0; + + switch (cfg->lane_count) { + case 4: + val |= (DP_PADCTL_PD_TXD_3_NO | + DP_PADCTL_PD_TXD_2_NO); + /* fall through */ + case 2: + val |= DP_PADCTL_PD_TXD_1_NO; + /* fall through */ + case 1: + val |= DP_PADCTL_PD_TXD_0_NO; + break; + default: + debug("dp: invalid lane number %d\n", cfg->lane_count); + return -EINVAL; + } + + tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), + (0xf << DP_PADCTL_COMODE_TXD_0_DP_TXD_2_SHIFT), + (val << DP_PADCTL_COMODE_TXD_0_DP_TXD_2_SHIFT)); + udelay(100); + tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), + (0xf << DP_PADCTL_COMODE_TXD_0_DP_TXD_2_SHIFT), + 0); + + return 0; +} + +static void tegra_dc_sor_enable_sor(struct dc_ctlr *disp_ctrl, bool enable) +{ + u32 reg_val = readl(&disp_ctrl->disp.disp_win_opt); + + reg_val = enable ? reg_val | SOR_ENABLE : reg_val & ~SOR_ENABLE; + writel(reg_val, &disp_ctrl->disp.disp_win_opt); +} + +int tegra_dc_sor_detach(struct tegra_dc_sor_data *sor) +{ + int dc_reg_ctx[DC_REG_SAVE_SPACE]; + const void *blob = gd->fdt_blob; + struct dc_ctlr *disp_ctrl; + unsigned long dc_int_mask; + int node; + int ret; + + debug("%s\n", __func__); + /* Use the first display controller */ + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_DC); + if (node < 0) { + ret = -ENOENT; + goto err; + } + disp_ctrl = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg"); + + /* Sleep mode */ + tegra_sor_writel(sor, SUPER_STATE1, SUPER_STATE1_ASY_HEAD_OP_SLEEP | + SUPER_STATE1_ASY_ORMODE_SAFE | + SUPER_STATE1_ATTACHED_YES); + tegra_dc_sor_super_update(sor); + + tegra_dc_sor_disable_win_short_raster(disp_ctrl, dc_reg_ctx); + + if (tegra_dc_sor_poll_register(sor, TEST, + TEST_ACT_HEAD_OPMODE_DEFAULT_MASK, + TEST_ACT_HEAD_OPMODE_SLEEP, 100, + TEGRA_SOR_ATTACH_TIMEOUT_MS)) { + debug("dc timeout waiting for OPMOD = SLEEP\n"); + ret = -ETIMEDOUT; + goto err; + } + + tegra_sor_writel(sor, SUPER_STATE1, SUPER_STATE1_ASY_HEAD_OP_SLEEP | + SUPER_STATE1_ASY_ORMODE_SAFE | + SUPER_STATE1_ATTACHED_NO); + + /* Mask DC interrupts during the 2 dummy frames required for detach */ + dc_int_mask = readl(&disp_ctrl->cmd.int_mask); + writel(0, &disp_ctrl->cmd.int_mask); + + /* Stop DC->SOR path */ + tegra_dc_sor_enable_sor(disp_ctrl, false); + ret = tegra_dc_sor_general_act(disp_ctrl); + if (ret) + goto err; + + /* Stop DC */ + writel(CTRL_MODE_STOP << CTRL_MODE_SHIFT, &disp_ctrl->cmd.disp_cmd); + ret = tegra_dc_sor_general_act(disp_ctrl); + if (ret) + goto err; + + tegra_dc_sor_restore_win_and_raster(disp_ctrl, dc_reg_ctx); + + writel(dc_int_mask, &disp_ctrl->cmd.int_mask); + + return 0; +err: + debug("%s: ret=%d\n", __func__, ret); + + return ret; +} + +int tegra_dc_sor_init(struct tegra_dc_sor_data **sorp) +{ + const void *blob = gd->fdt_blob; + struct tegra_dc_sor_data *sor; + int node; + + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_SOR); + if (node < 0) + return -ENOENT; + sor = calloc(1, sizeof(*sor)); + if (!sor) + return -ENOMEM; + sor->base = (void *)fdtdec_get_addr(blob, node, "reg"); + + node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_PMC); + if (node < 0) + return -ENOENT; + sor->pmc_base = (void *)fdtdec_get_addr(blob, node, "reg"); + + sor->power_is_up = 0; + sor->portnum = 0; + *sorp = sor; + + return 0; +} diff --git a/drivers/video/tegra124/sor.h b/drivers/video/tegra124/sor.h new file mode 100644 index 0000000..dc8fd03 --- /dev/null +++ b/drivers/video/tegra124/sor.h @@ -0,0 +1,922 @@ +/* + * Copyright (c) 2011-2013, NVIDIA Corporation. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _VIDEO_TEGRA124_SOR_H +#define _VIDEO_TEGRA124_SOR_H + +#define SUPER_STATE0 0x1 +#define SUPER_STATE0_UPDATE_SHIFT 0 +#define SUPER_STATE0_UPDATE_DEFAULT_MASK 0x1 +#define SUPER_STATE1 0x2 +#define SUPER_STATE1_ATTACHED_SHIFT 3 +#define SUPER_STATE1_ATTACHED_NO (0 << 3) +#define SUPER_STATE1_ATTACHED_YES (1 << 3) +#define SUPER_STATE1_ASY_ORMODE_SHIFT 2 +#define SUPER_STATE1_ASY_ORMODE_SAFE (0 << 2) +#define SUPER_STATE1_ASY_ORMODE_NORMAL (1 << 2) +#define SUPER_STATE1_ASY_HEAD_OP_SHIFT 0 +#define SUPER_STATE1_ASY_HEAD_OP_DEFAULT_MASK 0x3 +#define SUPER_STATE1_ASY_HEAD_OP_SLEEP 0 +#define SUPER_STATE1_ASY_HEAD_OP_SNOOZE 1 +#define SUPER_STATE1_ASY_HEAD_OP_AWAKE 2 +#define STATE0 0x3 +#define STATE0_UPDATE_SHIFT 0 +#define STATE0_UPDATE_DEFAULT_MASK 0x1 +#define STATE1 0x4 +#define STATE1_ASY_PIXELDEPTH_SHIFT 17 +#define STATE1_ASY_PIXELDEPTH_DEFAULT_MASK (0xf << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_16_422 (1 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_18_444 (2 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_20_422 (3 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_24_422 (4 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_24_444 (5 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_30_444 (6 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_32_422 (7 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_36_444 (8 << 17) +#define STATE1_ASY_PIXELDEPTH_BPP_48_444 (9 << 17) +#define STATE1_ASY_REPLICATE_SHIFT 15 +#define STATE1_ASY_REPLICATE_DEFAULT_MASK (3 << 15) +#define STATE1_ASY_REPLICATE_OFF (0 << 15) +#define STATE1_ASY_REPLICATE_X2 (1 << 15) +#define STATE1_ASY_REPLICATE_X4 (2 << 15) +#define STATE1_ASY_DEPOL_SHIFT 14 +#define STATE1_ASY_DEPOL_DEFAULT_MASK (1 << 14) +#define STATE1_ASY_DEPOL_POSITIVE_TRUE (0 << 14) +#define STATE1_ASY_DEPOL_NEGATIVE_TRUE (1 << 14) +#define STATE1_ASY_VSYNCPOL_SHIFT 13 +#define STATE1_ASY_VSYNCPOL_DEFAULT_MASK (1 << 13) +#define STATE1_ASY_VSYNCPOL_POSITIVE_TRUE (0 << 13) +#define STATE1_ASY_VSYNCPOL_NEGATIVE_TRUE (1 << 13) +#define STATE1_ASY_HSYNCPOL_SHIFT 12 +#define STATE1_ASY_HSYNCPOL_DEFAULT_MASK (1 << 12) +#define STATE1_ASY_HSYNCPOL_POSITIVE_TRUE (0 << 12) +#define STATE1_ASY_HSYNCPOL_NEGATIVE_TRUE (1 << 12) +#define STATE1_ASY_PROTOCOL_SHIFT 8 +#define STATE1_ASY_PROTOCOL_DEFAULT_MASK (0xf << 8) +#define STATE1_ASY_PROTOCOL_LVDS_CUSTOM (0 << 8) +#define STATE1_ASY_PROTOCOL_DP_A (8 << 8) +#define STATE1_ASY_PROTOCOL_DP_B (9 << 8) +#define STATE1_ASY_PROTOCOL_CUSTOM (15 << 8) +#define STATE1_ASY_CRCMODE_SHIFT 6 +#define STATE1_ASY_CRCMODE_DEFAULT_MASK (3 << 6) +#define STATE1_ASY_CRCMODE_ACTIVE_RASTER (0 << 6) +#define STATE1_ASY_CRCMODE_COMPLETE_RASTER (1 << 6) +#define STATE1_ASY_CRCMODE_NON_ACTIVE_RASTER (2 << 6) +#define STATE1_ASY_SUBOWNER_SHIFT 4 +#define STATE1_ASY_SUBOWNER_DEFAULT_MASK (3 << 4) +#define STATE1_ASY_SUBOWNER_NONE (0 << 4) +#define STATE1_ASY_SUBOWNER_SUBHEAD0 (1 << 4) +#define STATE1_ASY_SUBOWNER_SUBHEAD1 (2 << 4) +#define STATE1_ASY_SUBOWNER_BOTH (3 << 4) +#define STATE1_ASY_OWNER_SHIFT 0 +#define STATE1_ASY_OWNER_DEFAULT_MASK 0xf +#define STATE1_ASY_OWNER_NONE 0 +#define STATE1_ASY_OWNER_HEAD0 1 +#define STATE1_ASY_OWNER_HEAD1 2 +#define NV_HEAD_STATE0(i) 0x5 +#define NV_HEAD_STATE0_INTERLACED_SHIFT 4 +#define NV_HEAD_STATE0_INTERLACED_DEFAULT_MASK (3 << 4) +#define NV_HEAD_STATE0_INTERLACED_PROGRESSIVE (0 << 4) +#define NV_HEAD_STATE0_INTERLACED_INTERLACED (1 << 4) +#define NV_HEAD_STATE0_RANGECOMPRESS_SHIFT 3 +#define NV_HEAD_STATE0_RANGECOMPRESS_DEFAULT_MASK (1 << 3) +#define NV_HEAD_STATE0_RANGECOMPRESS_DISABLE (0 << 3) +#define NV_HEAD_STATE0_RANGECOMPRESS_ENABLE (1 << 3) +#define NV_HEAD_STATE0_DYNRANGE_SHIFT 2 +#define NV_HEAD_STATE0_DYNRANGE_DEFAULT_MASK (1 << 2) +#define NV_HEAD_STATE0_DYNRANGE_VESA (0 << 2) +#define NV_HEAD_STATE0_DYNRANGE_CEA (1 << 2) +#define NV_HEAD_STATE0_COLORSPACE_SHIFT 0 +#define NV_HEAD_STATE0_COLORSPACE_DEFAULT_MASK 0x3 +#define NV_HEAD_STATE0_COLORSPACE_RGB 0 +#define NV_HEAD_STATE0_COLORSPACE_YUV_601 1 +#define NV_HEAD_STATE0_COLORSPACE_YUV_709 2 +#define NV_HEAD_STATE1(i) (7 + i) +#define NV_HEAD_STATE1_VTOTAL_SHIFT 16 +#define NV_HEAD_STATE1_VTOTAL_DEFAULT_MASK (0x7fff << 16) +#define NV_HEAD_STATE1_HTOTAL_SHIFT 0 +#define NV_HEAD_STATE1_HTOTAL_DEFAULT_MASK 0x7fff +#define NV_HEAD_STATE2(i) (9 + i) +#define NV_HEAD_STATE2_VSYNC_END_SHIFT 16 +#define NV_HEAD_STATE2_VSYNC_END_DEFAULT_MASK (0x7fff << 16) +#define NV_HEAD_STATE2_HSYNC_END_SHIFT 0 +#define NV_HEAD_STATE2_HSYNC_END_DEFAULT_MASK 0x7fff +#define NV_HEAD_STATE3(i) (0xb + i) +#define NV_HEAD_STATE3_VBLANK_END_SHIFT 16 +#define NV_HEAD_STATE3_VBLANK_END_DEFAULT_MASK (0x7fff << 16) +#define NV_HEAD_STATE3_HBLANK_END_SHIFT 0 +#define NV_HEAD_STATE3_HBLANK_END_DEFAULT_MASK 0x7fff +#define NV_HEAD_STATE4(i) (0xd + i) +#define NV_HEAD_STATE4_VBLANK_START_SHIFT 16 +#define NV_HEAD_STATE4_VBLANK_START_DEFAULT_MASK (0x7fff << 16) +#define NV_HEAD_STATE4_HBLANK_START_SHIFT 0 +#define NV_HEAD_STATE4_HBLANK_START_DEFAULT_MASK 0x7fff +#define NV_HEAD_STATE5(i) (0xf + i) +#define CRC_CNTRL 0x11 +#define CRC_CNTRL_ARM_CRC_ENABLE_SHIFT 0 +#define CRC_CNTRL_ARM_CRC_ENABLE_NO 0 +#define CRC_CNTRL_ARM_CRC_ENABLE_YES 1 +#define CRC_CNTRL_ARM_CRC_ENABLE_DIS 0 +#define CRC_CNTRL_ARM_CRC_ENABLE_EN 1 +#define CLK_CNTRL 0x13 +#define CLK_CNTRL_DP_CLK_SEL_SHIFT 0 +#define CLK_CNTRL_DP_CLK_SEL_MASK 0x3 +#define CLK_CNTRL_DP_CLK_SEL_SINGLE_PCLK 0 +#define CLK_CNTRL_DP_CLK_SEL_DIFF_PCLK 1 +#define CLK_CNTRL_DP_CLK_SEL_SINGLE_DPCLK 2 +#define CLK_CNTRL_DP_CLK_SEL_DIFF_DPCLK 3 +#define CLK_CNTRL_DP_LINK_SPEED_SHIFT 2 +#define CLK_CNTRL_DP_LINK_SPEED_MASK (0x1f << 2) +#define CLK_CNTRL_DP_LINK_SPEED_G1_62 (6 << 2) +#define CLK_CNTRL_DP_LINK_SPEED_G2_7 (10 << 2) +#define CLK_CNTRL_DP_LINK_SPEED_LVDS (7 << 2) +#define CAP 0x14 +#define CAP_DP_A_SHIFT 24 +#define CAP_DP_A_DEFAULT_MASK (1 << 24) +#define CAP_DP_A_FALSE (0 << 24) +#define CAP_DP_A_TRUE (1 << 24) +#define CAP_DP_B_SHIFT 25 +#define CAP_DP_B_DEFAULT_MASK (1 << 24) +#define CAP_DP_B_FALSE (0 << 24) +#define CAP_DP_B_TRUE (1 << 24) +#define PWR 0x15 +#define PWR_SETTING_NEW_SHIFT 31 +#define PWR_SETTING_NEW_DEFAULT_MASK (1 << 31) +#define PWR_SETTING_NEW_DONE (0 << 31) +#define PWR_SETTING_NEW_PENDING (1 << 31) +#define PWR_SETTING_NEW_TRIGGER (1 << 31) +#define PWR_MODE_SHIFT 28 +#define PWR_MODE_DEFAULT_MASK (1 << 28) +#define PWR_MODE_NORMAL (0 << 28) +#define PWR_MODE_SAFE (1 << 28) +#define PWR_HALT_DELAY_SHIFT 24 +#define PWR_HALT_DELAY_DEFAULT_MASK (1 << 24) +#define PWR_HALT_DELAY_DONE (0 << 24) +#define PWR_HALT_DELAY_ACTIVE (1 << 24) +#define PWR_SAFE_START_SHIFT 17 +#define PWR_SAFE_START_DEFAULT_MASK (1 << 17) +#define PWR_SAFE_START_NORMAL (0 << 17) +#define PWR_SAFE_START_ALT (1 << 17) +#define PWR_SAFE_STATE_SHIFT 16 +#define PWR_SAFE_STATE_DEFAULT_MASK (1 << 16) +#define PWR_SAFE_STATE_PD (0 << 16) +#define PWR_SAFE_STATE_PU (1 << 16) +#define PWR_NORMAL_START_SHIFT 1 +#define PWR_NORMAL_START_DEFAULT_MASK (1 << 1) +#define PWR_NORMAL_START_NORMAL (0 << 16) +#define PWR_NORMAL_START_ALT (1 << 16) +#define PWR_NORMAL_STATE_SHIFT 0 +#define PWR_NORMAL_STATE_DEFAULT_MASK 0x1 +#define PWR_NORMAL_STATE_PD 0 +#define PWR_NORMAL_STATE_PU 1 +#define TEST 0x16 +#define TEST_TESTMUX_SHIFT 24 +#define TEST_TESTMUX_DEFAULT_MASK (0xff << 24) +#define TEST_TESTMUX_AVSS (0 << 24) +#define TEST_TESTMUX_CLOCKIN (2 << 24) +#define TEST_TESTMUX_PLL_VOL (4 << 24) +#define TEST_TESTMUX_SLOWCLKINT (8 << 24) +#define TEST_TESTMUX_AVDD (16 << 24) +#define TEST_TESTMUX_VDDREG (32 << 24) +#define TEST_TESTMUX_REGREF_VDDREG (64 << 24) +#define TEST_TESTMUX_REGREF_AVDD (128 << 24) +#define TEST_CRC_SHIFT 23 +#define TEST_CRC_PRE_SERIALIZE (0 << 23) +#define TEST_CRC_POST_DESERIALIZE (1 << 23) +#define TEST_TPAT_SHIFT 20 +#define TEST_TPAT_DEFAULT_MASK (7 << 20) +#define TEST_TPAT_LO (0 << 20) +#define TEST_TPAT_TDAT (1 << 20) +#define TEST_TPAT_RAMP (2 << 20) +#define TEST_TPAT_WALK (3 << 20) +#define TEST_TPAT_MAXSTEP (4 << 20) +#define TEST_TPAT_MINSTEP (5 << 20) +#define TEST_DSRC_SHIFT 16 +#define TEST_DSRC_DEFAULT_MASK (3 << 16) +#define TEST_DSRC_NORMAL (0 << 16) +#define TEST_DSRC_DEBUG (1 << 16) +#define TEST_DSRC_TGEN (2 << 16) +#define TEST_HEAD_NUMBER_SHIFT 12 +#define TEST_HEAD_NUMBER_DEFAULT_MASK (3 << 12) +#define TEST_HEAD_NUMBER_NONE (0 << 12) +#define TEST_HEAD_NUMBER_HEAD0 (1 << 12) +#define TEST_HEAD_NUMBER_HEAD1 (2 << 12) +#define TEST_ATTACHED_SHIFT 10 +#define TEST_ATTACHED_DEFAULT_MASK (1 << 10) +#define TEST_ATTACHED_FALSE (0 << 10) +#define TEST_ATTACHED_TRUE (1 << 10) +#define TEST_ACT_HEAD_OPMODE_SHIFT 8 +#define TEST_ACT_HEAD_OPMODE_DEFAULT_MASK (3 << 8) +#define TEST_ACT_HEAD_OPMODE_SLEEP (0 << 8) +#define TEST_ACT_HEAD_OPMODE_SNOOZE (1 << 8) +#define TEST_ACT_HEAD_OPMODE_AWAKE (2 << 8) +#define TEST_INVD_SHIFT 6 +#define TEST_INVD_DISABLE (0 << 6) +#define TEST_INVD_ENABLE (1 << 6) +#define TEST_TEST_ENABLE_SHIFT 1 +#define TEST_TEST_ENABLE_DISABLE (0 << 1) +#define TEST_TEST_ENABLE_ENABLE (1 << 1) +#define PLL0 0x17 +#define PLL0_ICHPMP_SHFIT 24 +#define PLL0_ICHPMP_DEFAULT_MASK (0xf << 24) +#define PLL0_VCOCAP_SHIFT 8 +#define PLL0_VCOCAP_DEFAULT_MASK (0xf << 8) +#define PLL0_PLLREG_LEVEL_SHIFT 6 +#define PLL0_PLLREG_LEVEL_DEFAULT_MASK (3 << 6) +#define PLL0_PLLREG_LEVEL_V25 (0 << 6) +#define PLL0_PLLREG_LEVEL_V15 (1 << 6) +#define PLL0_PLLREG_LEVEL_V35 (2 << 6) +#define PLL0_PLLREG_LEVEL_V45 (3 << 6) +#define PLL0_PULLDOWN_SHIFT 5 +#define PLL0_PULLDOWN_DEFAULT_MASK (1 << 5) +#define PLL0_PULLDOWN_DISABLE (0 << 5) +#define PLL0_PULLDOWN_ENABLE (1 << 5) +#define PLL0_RESISTORSEL_SHIFT 4 +#define PLL0_RESISTORSEL_DEFAULT_MASK (1 << 4) +#define PLL0_RESISTORSEL_INT (0 << 4) +#define PLL0_RESISTORSEL_EXT (1 << 4) +#define PLL0_VCOPD_SHIFT 2 +#define PLL0_VCOPD_MASK (1 << 2) +#define PLL0_VCOPD_RESCIND (0 << 2) +#define PLL0_VCOPD_ASSERT (1 << 2) +#define PLL0_PWR_SHIFT 0 +#define PLL0_PWR_MASK 1 +#define PLL0_PWR_ON 0 +#define PLL0_PWR_OFF 1 +#define PLL1_TMDS_TERM_SHIFT 8 +#define PLL1_TMDS_TERM_DISABLE (0 << 8) +#define PLL1_TMDS_TERM_ENABLE (1 << 8) +#define PLL1 0x18 +#define PLL1_TERM_COMPOUT_SHIFT 15 +#define PLL1_TERM_COMPOUT_LOW (0 << 15) +#define PLL1_TERM_COMPOUT_HIGH (1 << 15) +#define PLL2 0x19 +#define PLL2_DCIR_PLL_RESET_SHIFT 0 +#define PLL2_DCIR_PLL_RESET_OVERRIDE (0 << 0) +#define PLL2_DCIR_PLL_RESET_ALLOW (1 << 0) +#define PLL2_AUX1_SHIFT 17 +#define PLL2_AUX1_SEQ_MASK (1 << 17) +#define PLL2_AUX1_SEQ_PLLCAPPD_ALLOW (0 << 17) +#define PLL2_AUX1_SEQ_PLLCAPPD_OVERRIDE (1 << 17) +#define PLL2_AUX2_SHIFT 18 +#define PLL2_AUX2_MASK (1 << 18) +#define PLL2_AUX2_OVERRIDE_POWERDOWN (0 << 18) +#define PLL2_AUX2_ALLOW_POWERDOWN (1 << 18) +#define PLL2_AUX6_SHIFT 22 +#define PLL2_AUX6_BANDGAP_POWERDOWN_MASK (1 << 22) +#define PLL2_AUX6_BANDGAP_POWERDOWN_DISABLE (0 << 22) +#define PLL2_AUX6_BANDGAP_POWERDOWN_ENABLE (1 << 22) +#define PLL2_AUX7_SHIFT 23 +#define PLL2_AUX7_PORT_POWERDOWN_MASK (1 << 23) +#define PLL2_AUX7_PORT_POWERDOWN_DISABLE (0 << 23) +#define PLL2_AUX7_PORT_POWERDOWN_ENABLE (1 << 23) +#define PLL2_AUX8_SHIFT 24 +#define PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK (1 << 24) +#define PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_DISABLE (0 << 24) +#define PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_ENABLE (1 << 24) +#define PLL2_AUX9_SHIFT 25 +#define PLL2_AUX9_LVDSEN_ALLOW (0 << 25) +#define PLL2_AUX9_LVDSEN_OVERRIDE (1 << 25) +#define PLL3 0x1a +#define PLL3_PLLVDD_MODE_SHIFT 13 +#define PLL3_PLLVDD_MODE_MASK (1 << 13) +#define PLL3_PLLVDD_MODE_V1_8 (0 << 13) +#define PLL3_PLLVDD_MODE_V3_3 (1 << 13) +#define CSTM 0x1b +#define CSTM_ROTDAT_SHIFT 28 +#define CSTM_ROTDAT_DEFAULT_MASK (7 << 28) +#define CSTM_ROTCLK_SHIFT 24 +#define CSTM_ROTCLK_DEFAULT_MASK (0xf << 24) +#define CSTM_LVDS_EN_SHIFT 16 +#define CSTM_LVDS_EN_DISABLE (0 << 16) +#define CSTM_LVDS_EN_ENABLE (1 << 16) +#define CSTM_LINKACTB_SHIFT 15 +#define CSTM_LINKACTB_DISABLE (0 << 15) +#define CSTM_LINKACTB_ENABLE (1 << 15) +#define CSTM_LINKACTA_SHIFT 14 +#define CSTM_LINKACTA_DISABLE (0 << 14) +#define CSTM_LINKACTA_ENABLE (1 << 14) +#define LVDS 0x1c +#define LVDS_ROTDAT_SHIFT 28 +#define LVDS_ROTDAT_DEFAULT_MASK (7 << 28) +#define LVDS_ROTDAT_RST (0 << 28) +#define LVDS_ROTCLK_SHIFT 24 +#define LVDS_ROTCLK_DEFAULT_MASK (0xf << 24) +#define LVDS_ROTCLK_RST (0 << 24) +#define LVDS_PLLDIV_SHIFT 21 +#define LVDS_PLLDIV_DEFAULT_MASK (1 << 21) +#define LVDS_PLLDIV_BY_7 (0 << 21) +#define LVDS_BALANCED_SHIFT 19 +#define LVDS_BALANCED_DEFAULT_MASK (1 << 19) +#define LVDS_BALANCED_DISABLE (0 << 19) +#define LVDS_BALANCED_ENABLE (1 << 19) +#define LVDS_NEW_MODE_SHIFT 18 +#define LVDS_NEW_MODE_DEFAULT_MASK (1 << 18) +#define LVDS_NEW_MODE_DISABLE (0 << 18) +#define LVDS_NEW_MODE_ENABLE (1 << 18) +#define LVDS_DUP_SYNC_SHIFT 17 +#define LVDS_DUP_SYNC_DEFAULT_MASK (1 << 17) +#define LVDS_DUP_SYNC_DISABLE (0 << 17) +#define LVDS_DUP_SYNC_ENABLE (1 << 17) +#define LVDS_LVDS_EN_SHIFT 16 +#define LVDS_LVDS_EN_DEFAULT_MASK (1 << 16) +#define LVDS_LVDS_EN_ENABLE (1 << 16) +#define LVDS_LINKACTB_SHIFT 15 +#define LVDS_LINKACTB_DEFAULT_MASK (1 << 15) +#define LVDS_LINKACTB_DISABLE (0 << 15) +#define LVDS_LINKACTB_ENABLE (1 << 15) +#define LVDS_LINKACTA_SHIFT 14 +#define LVDS_LINKACTA_DEFAULT_MASK (1 << 14) +#define LVDS_LINKACTA_ENABLE (1 << 14) +#define LVDS_MODE_SHIFT 12 +#define LVDS_MODE_DEFAULT_MASK (3 << 12) +#define LVDS_MODE_LVDS (0 << 12) +#define LVDS_UPPER_SHIFT 11 +#define LVDS_UPPER_DEFAULT_MASK (1 << 11) +#define LVDS_UPPER_FALSE (0 << 11) +#define LVDS_UPPER_TRUE (1 << 11) +#define LVDS_PD_TXCB_SHIFT 9 +#define LVDS_PD_TXCB_DEFAULT_MASK (1 << 9) +#define LVDS_PD_TXCB_ENABLE (0 << 9) +#define LVDS_PD_TXCB_DISABLE (1 << 9) +#define LVDS_PD_TXCA_SHIFT 8 +#define LVDS_PD_TXCA_DEFAULT_MASK (1 << 8) +#define LVDS_PD_TXCA_ENABLE (0 << 8) +#define LVDS_PD_TXDB_3_SHIFT 7 +#define LVDS_PD_TXDB_3_DEFAULT_MASK (1 << 7) +#define LVDS_PD_TXDB_3_ENABLE (0 << 7) +#define LVDS_PD_TXDB_3_DISABLE (1 << 7) +#define LVDS_PD_TXDB_2_SHIFT 6 +#define LVDS_PD_TXDB_2_DEFAULT_MASK (1 << 6) +#define LVDS_PD_TXDB_2_ENABLE (0 << 6) +#define LVDS_PD_TXDB_2_DISABLE (1 << 6) +#define LVDS_PD_TXDB_1_SHIFT 5 +#define LVDS_PD_TXDB_1_DEFAULT_MASK (1 << 5) +#define LVDS_PD_TXDB_1_ENABLE (0 << 5) +#define LVDS_PD_TXDB_1_DISABLE (1 << 5) +#define LVDS_PD_TXDB_0_SHIFT 4 +#define LVDS_PD_TXDB_0_DEFAULT_MASK (1 << 4) +#define LVDS_PD_TXDB_0_ENABLE (0 << 4) +#define LVDS_PD_TXDB_0_DISABLE (1 << 4) +#define LVDS_PD_TXDA_3_SHIFT 3 +#define LVDS_PD_TXDA_3_DEFAULT_MASK (1 << 3) +#define LVDS_PD_TXDA_3_ENABLE (0 << 3) +#define LVDS_PD_TXDA_3_DISABLE (1 << 3) +#define LVDS_PD_TXDA_2_SHIFT 2 +#define LVDS_PD_TXDA_2_DEFAULT_MASK (1 << 2) +#define LVDS_PD_TXDA_2_ENABLE (0 << 2) +#define LVDS_PD_TXDA_1_SHIFT 1 +#define LVDS_PD_TXDA_1_DEFAULT_MASK (1 << 1) +#define LVDS_PD_TXDA_1_ENABLE (0 << 1) +#define LVDS_PD_TXDA_0_SHIFT 0 +#define LVDS_PD_TXDA_0_DEFAULT_MASK 0x1 +#define LVDS_PD_TXDA_0_ENABLE 0 +#define CRCA 0x1d +#define CRCA_VALID_FALSE 0 +#define CRCA_VALID_TRUE 1 +#define CRCA_VALID_RST 1 +#define CRCB 0x1e +#define CRCB_CRC_DEFAULT_MASK 0xffffffff +#define SEQ_CTL 0x20 +#define SEQ_CTL_SWITCH_SHIFT 30 +#define SEQ_CTL_SWITCH_MASK (1 << 30) +#define SEQ_CTL_SWITCH_WAIT (0 << 30) +#define SEQ_CTL_SWITCH_FORCE (1 << 30) +#define SEQ_CTL_STATUS_SHIFT 28 +#define SEQ_CTL_STATUS_MASK (1 << 28) +#define SEQ_CTL_STATUS_STOPPED (0 << 28) +#define SEQ_CTL_STATUS_RUNNING (1 << 28) +#define SEQ_CTL_PC_SHIFT 16 +#define SEQ_CTL_PC_MASK (0xf << 16) +#define SEQ_CTL_PD_PC_ALT_SHIFT 12 +#define SEQ_CTL_PD_PC_ALT_MASK (0xf << 12) +#define SEQ_CTL_PD_PC_SHIFT 8 +#define SEQ_CTL_PD_PC_MASK (0xf << 8) +#define SEQ_CTL_PU_PC_ALT_SHIFT 4 +#define SEQ_CTL_PU_PC_ALT_MASK (0xf << 4) +#define SEQ_CTL_PU_PC_SHIFT 0 +#define SEQ_CTL_PU_PC_MASK 0xf +#define LANE_SEQ_CTL 0x21 +#define LANE_SEQ_CTL_SETTING_NEW_SHIFT 31 +#define LANE_SEQ_CTL_SETTING_MASK (1 << 31) +#define LANE_SEQ_CTL_SETTING_NEW_DONE (0 << 31) +#define LANE_SEQ_CTL_SETTING_NEW_PENDING (1 << 31) +#define LANE_SEQ_CTL_SETTING_NEW_TRIGGER (1 << 31) +#define LANE_SEQ_CTL_SEQ_STATE_SHIFT 28 +#define LANE_SEQ_CTL_SEQ_STATE_IDLE (0 << 28) +#define LANE_SEQ_CTL_SEQ_STATE_BUSY (1 << 28) +#define LANE_SEQ_CTL_SEQUENCE_SHIFT 20 +#define LANE_SEQ_CTL_SEQUENCE_UP (0 << 20) +#define LANE_SEQ_CTL_SEQUENCE_DOWN (1 << 20) +#define LANE_SEQ_CTL_NEW_POWER_STATE_SHIFT 16 +#define LANE_SEQ_CTL_NEW_POWER_STATE_PU (0 << 16) +#define LANE_SEQ_CTL_NEW_POWER_STATE_PD (1 << 16) +#define LANE_SEQ_CTL_DELAY_SHIFT 12 +#define LANE_SEQ_CTL_DELAY_DEFAULT_MASK (0xf << 12) +#define LANE_SEQ_CTL_LANE9_STATE_SHIFT 9 +#define LANE_SEQ_CTL_LANE9_STATE_POWERUP (0 << 9) +#define LANE_SEQ_CTL_LANE9_STATE_POWERDOWN (1 << 9) +#define LANE_SEQ_CTL_LANE8_STATE_SHIFT 8 +#define LANE_SEQ_CTL_LANE8_STATE_POWERUP (0 << 8) +#define LANE_SEQ_CTL_LANE8_STATE_POWERDOWN (1 << 8) +#define LANE_SEQ_CTL_LANE7_STATE_SHIFT 7 +#define LANE_SEQ_CTL_LANE7_STATE_POWERUP (0 << 7) +#define LANE_SEQ_CTL_LANE7_STATE_POWERDOWN (1 << 7) +#define LANE_SEQ_CTL_LANE6_STATE_SHIFT 6 +#define LANE_SEQ_CTL_LANE6_STATE_POWERUP (0 << 6) +#define LANE_SEQ_CTL_LANE6_STATE_POWERDOWN (1 << 6) +#define LANE_SEQ_CTL_LANE5_STATE_SHIFT 5 +#define LANE_SEQ_CTL_LANE5_STATE_POWERUP (0 << 5) +#define LANE_SEQ_CTL_LANE5_STATE_POWERDOWN (1 << 5) +#define LANE_SEQ_CTL_LANE4_STATE_SHIFT 4 +#define LANE_SEQ_CTL_LANE4_STATE_POWERUP (0 << 4) +#define LANE_SEQ_CTL_LANE4_STATE_POWERDOWN (1 << 4) +#define LANE_SEQ_CTL_LANE3_STATE_SHIFT 3 +#define LANE_SEQ_CTL_LANE3_STATE_POWERUP (0 << 3) +#define LANE_SEQ_CTL_LANE3_STATE_POWERDOWN (1 << 3) +#define LANE_SEQ_CTL_LANE2_STATE_SHIFT 2 +#define LANE_SEQ_CTL_LANE2_STATE_POWERUP (0 << 2) +#define LANE_SEQ_CTL_LANE2_STATE_POWERDOWN (1 << 2) +#define LANE_SEQ_CTL_LANE1_STATE_SHIFT 1 +#define LANE_SEQ_CTL_LANE1_STATE_POWERUP (0 << 1) +#define LANE_SEQ_CTL_LANE1_STATE_POWERDOWN (1 << 1) +#define LANE_SEQ_CTL_LANE0_STATE_SHIFT 0 +#define LANE_SEQ_CTL_LANE0_STATE_POWERUP 0 +#define LANE_SEQ_CTL_LANE0_STATE_POWERDOWN 1 +#define SEQ_INST(i) (0x22 + i) +#define SEQ_INST_PLL_PULLDOWN_SHIFT 31 +#define SEQ_INST_PLL_PULLDOWN_DISABLE (0 << 31) +#define SEQ_INST_PLL_PULLDOWN_ENABLE (1 << 31) +#define SEQ_INST_POWERDOWN_MACRO_SHIFT 30 +#define SEQ_INST_POWERDOWN_MACRO_NORMAL (0 << 30) +#define SEQ_INST_POWERDOWN_MACRO_POWERDOWN (1 << 30) +#define SEQ_INST_ASSERT_PLL_RESET_SHIFT 29 +#define SEQ_INST_ASSERT_PLL_RESET_NORMAL (0 << 29) +#define SEQ_INST_ASSERT_PLL_RESET_RST (1 << 29) +#define SEQ_INST_BLANK_V_SHIFT 28 +#define SEQ_INST_BLANK_V_NORMAL (0 << 28) +#define SEQ_INST_BLANK_V_INACTIVE (1 << 28) +#define SEQ_INST_BLANK_H_SHIFT 27 +#define SEQ_INST_BLANK_H_NORMAL (0 << 27) +#define SEQ_INST_BLANK_H_INACTIVE (1 << 27) +#define SEQ_INST_BLANK_DE_SHIFT 26 +#define SEQ_INST_BLANK_DE_NORMAL (0 << 26) +#define SEQ_INST_BLANK_DE_INACTIVE (1 << 26) +#define SEQ_INST_BLACK_DATA_SHIFT 25 +#define SEQ_INST_BLACK_DATA_NORMAL (0 << 25) +#define SEQ_INST_BLACK_DATA_BLACK (1 << 25) +#define SEQ_INST_TRISTATE_IOS_SHIFT 24 +#define SEQ_INST_TRISTATE_IOS_ENABLE_PINS (0 << 24) +#define SEQ_INST_TRISTATE_IOS_TRISTATE (1 << 24) +#define SEQ_INST_DRIVE_PWM_OUT_LO_SHIFT 23 +#define SEQ_INST_DRIVE_PWM_OUT_LO_FALSE (0 << 23) +#define SEQ_INST_DRIVE_PWM_OUT_LO_TRUE (1 << 23) +#define SEQ_INST_PIN_B_SHIFT 22 +#define SEQ_INST_PIN_B_LOW (0 << 22) +#define SEQ_INST_PIN_B_HIGH (1 << 22) +#define SEQ_INST_PIN_A_SHIFT 21 +#define SEQ_INST_PIN_A_LOW (0 << 21) +#define SEQ_INST_PIN_A_HIGH (1 << 21) +#define SEQ_INST_SEQUENCE_SHIFT 19 +#define SEQ_INST_SEQUENCE_UP (0 << 19) +#define SEQ_INST_SEQUENCE_DOWN (1 << 19) +#define SEQ_INST_LANE_SEQ_SHIFT 18 +#define SEQ_INST_LANE_SEQ_STOP (0 << 18) +#define SEQ_INST_LANE_SEQ_RUN (1 << 18) +#define SEQ_INST_PDPORT_SHIFT 17 +#define SEQ_INST_PDPORT_NO (0 << 17) +#define SEQ_INST_PDPORT_YES (1 << 17) +#define SEQ_INST_PDPLL_SHIFT 16 +#define SEQ_INST_PDPLL_NO (0 << 16) +#define SEQ_INST_PDPLL_YES (1 << 16) +#define SEQ_INST_HALT_SHIFT 15 +#define SEQ_INST_HALT_FALSE (0 << 15) +#define SEQ_INST_HALT_TRUE (1 << 15) +#define SEQ_INST_WAIT_UNITS_SHIFT 12 +#define SEQ_INST_WAIT_UNITS_DEFAULT_MASK (3 << 12) +#define SEQ_INST_WAIT_UNITS_US (0 << 12) +#define SEQ_INST_WAIT_UNITS_MS (1 << 12) +#define SEQ_INST_WAIT_UNITS_VSYNC (2 << 12) +#define SEQ_INST_WAIT_TIME_SHIFT 0 +#define SEQ_INST_WAIT_TIME_DEFAULT_MASK 0x3ff +#define PWM_DIV 0x32 +#define PWM_DIV_DIVIDE_DEFAULT_MASK 0xffffff +#define PWM_CTL 0x33 +#define PWM_CTL_SETTING_NEW_SHIFT 31 +#define PWM_CTL_SETTING_NEW_DONE (0 << 31) +#define PWM_CTL_SETTING_NEW_PENDING (1 << 31) +#define PWM_CTL_SETTING_NEW_TRIGGER (1 << 31) +#define PWM_CTL_CLKSEL_SHIFT 30 +#define PWM_CTL_CLKSEL_PCLK (0 << 30) +#define PWM_CTL_CLKSEL_XTAL (1 << 30) +#define PWM_CTL_DUTY_CYCLE_SHIFT 0 +#define PWM_CTL_DUTY_CYCLE_MASK 0xffffff +#define MSCHECK 0x49 +#define MSCHECK_CTL_SHIFT 31 +#define MSCHECK_CTL_CLEAR (0 << 31) +#define MSCHECK_CTL_RUN (1 << 31) +#define XBAR_CTRL 0x4a +#define DP_LINKCTL(i) (0x4c + (i)) +#define DP_LINKCTL_FORCE_IDLEPTTRN_SHIFT 31 +#define DP_LINKCTL_FORCE_IDLEPTTRN_NO (0 << 31) +#define DP_LINKCTL_FORCE_IDLEPTTRN_YES (1 << 31) +#define DP_LINKCTL_COMPLIANCEPTTRN_SHIFT 28 +#define DP_LINKCTL_COMPLIANCEPTTRN_NOPATTERN (0 << 28) +#define DP_LINKCTL_COMPLIANCEPTTRN_COLORSQARE (1 << 28) +#define DP_LINKCTL_LANECOUNT_SHIFT 16 +#define DP_LINKCTL_LANECOUNT_MASK (0x1f << 16) +#define DP_LINKCTL_LANECOUNT_ZERO (0 << 16) +#define DP_LINKCTL_LANECOUNT_ONE (1 << 16) +#define DP_LINKCTL_LANECOUNT_TWO (3 << 16) +#define DP_LINKCTL_LANECOUNT_FOUR (15 << 16) +#define DP_LINKCTL_ENHANCEDFRAME_SHIFT 14 +#define DP_LINKCTL_ENHANCEDFRAME_DISABLE (0 << 14) +#define DP_LINKCTL_ENHANCEDFRAME_ENABLE (1 << 14) +#define DP_LINKCTL_SYNCMODE_SHIFT 10 +#define DP_LINKCTL_SYNCMODE_DISABLE (0 << 10) +#define DP_LINKCTL_SYNCMODE_ENABLE (1 << 10) +#define DP_LINKCTL_TUSIZE_SHIFT 2 +#define DP_LINKCTL_TUSIZE_MASK (0x7f << 2) +#define DP_LINKCTL_ENABLE_SHIFT 0 +#define DP_LINKCTL_ENABLE_NO 0 +#define DP_LINKCTL_ENABLE_YES 1 +#define DC(i) (0x4e + (i)) +#define DC_LANE3_DP_LANE3_SHIFT 24 +#define DC_LANE3_DP_LANE3_MASK (0xff << 24) +#define DC_LANE3_DP_LANE3_P0_LEVEL0 (17 << 24) +#define DC_LANE3_DP_LANE3_P1_LEVEL0 (21 << 24) +#define DC_LANE3_DP_LANE3_P2_LEVEL0 (26 << 24) +#define DC_LANE3_DP_LANE3_P3_LEVEL0 (34 << 24) +#define DC_LANE3_DP_LANE3_P0_LEVEL1 (26 << 24) +#define DC_LANE3_DP_LANE3_P1_LEVEL1 (32 << 24) +#define DC_LANE3_DP_LANE3_P2_LEVEL1 (39 << 24) +#define DC_LANE3_DP_LANE3_P0_LEVEL2 (34 << 24) +#define DC_LANE3_DP_LANE3_P1_LEVEL2 (43 << 24) +#define DC_LANE3_DP_LANE3_P0_LEVEL3 (51 << 24) +#define DC_LANE2_DP_LANE0_SHIFT 16 +#define DC_LANE2_DP_LANE0_MASK (0xff << 16) +#define DC_LANE2_DP_LANE0_P0_LEVEL0 (17 << 16) +#define DC_LANE2_DP_LANE0_P1_LEVEL0 (21 << 16) +#define DC_LANE2_DP_LANE0_P2_LEVEL0 (26 << 16) +#define DC_LANE2_DP_LANE0_P3_LEVEL0 (34 << 16) +#define DC_LANE2_DP_LANE0_P0_LEVEL1 (26 << 16) +#define DC_LANE2_DP_LANE0_P1_LEVEL1 (32 << 16) +#define DC_LANE2_DP_LANE0_P2_LEVEL1 (39 << 16) +#define DC_LANE2_DP_LANE0_P0_LEVEL2 (34 << 16) +#define DC_LANE2_DP_LANE0_P1_LEVEL2 (43 << 16) +#define DC_LANE2_DP_LANE0_P0_LEVEL3 (51 << 16) +#define DC_LANE1_DP_LANE1_SHIFT 8 +#define DC_LANE1_DP_LANE1_MASK (0xff << 8) +#define DC_LANE1_DP_LANE1_P0_LEVEL0 (17 << 8) +#define DC_LANE1_DP_LANE1_P1_LEVEL0 (21 << 8) +#define DC_LANE1_DP_LANE1_P2_LEVEL0 (26 << 8) +#define DC_LANE1_DP_LANE1_P3_LEVEL0 (34 << 8) +#define DC_LANE1_DP_LANE1_P0_LEVEL1 (26 << 8) +#define DC_LANE1_DP_LANE1_P1_LEVEL1 (32 << 8) +#define DC_LANE1_DP_LANE1_P2_LEVEL1 (39 << 8) +#define DC_LANE1_DP_LANE1_P0_LEVEL2 (34 << 8) +#define DC_LANE1_DP_LANE1_P1_LEVEL2 (43 << 8) +#define DC_LANE1_DP_LANE1_P0_LEVEL3 (51 << 8) +#define DC_LANE0_DP_LANE2_SHIFT 0 +#define DC_LANE0_DP_LANE2_MASK 0xff +#define DC_LANE0_DP_LANE2_P0_LEVEL0 17 +#define DC_LANE0_DP_LANE2_P1_LEVEL0 21 +#define DC_LANE0_DP_LANE2_P2_LEVEL0 26 +#define DC_LANE0_DP_LANE2_P3_LEVEL0 34 +#define DC_LANE0_DP_LANE2_P0_LEVEL1 26 +#define DC_LANE0_DP_LANE2_P1_LEVEL1 32 +#define DC_LANE0_DP_LANE2_P2_LEVEL1 39 +#define DC_LANE0_DP_LANE2_P0_LEVEL2 34 +#define DC_LANE0_DP_LANE2_P1_LEVEL2 43 +#define DC_LANE0_DP_LANE2_P0_LEVEL3 51 +#define LANE_DRIVE_CURRENT(i) (0x4e + (i)) +#define PR(i) (0x52 + (i)) +#define PR_LANE3_DP_LANE3_SHIFT 24 +#define PR_LANE3_DP_LANE3_MASK (0xff << 24) +#define PR_LANE3_DP_LANE3_D0_LEVEL0 (0 << 24) +#define PR_LANE3_DP_LANE3_D1_LEVEL0 (0 << 24) +#define PR_LANE3_DP_LANE3_D2_LEVEL0 (0 << 24) +#define PR_LANE3_DP_LANE3_D3_LEVEL0 (0 << 24) +#define PR_LANE3_DP_LANE3_D0_LEVEL1 (4 << 24) +#define PR_LANE3_DP_LANE3_D1_LEVEL1 (6 << 24) +#define PR_LANE3_DP_LANE3_D2_LEVEL1 (17 << 24) +#define PR_LANE3_DP_LANE3_D0_LEVEL2 (8 << 24) +#define PR_LANE3_DP_LANE3_D1_LEVEL2 (13 << 24) +#define PR_LANE3_DP_LANE3_D0_LEVEL3 (17 << 24) +#define PR_LANE2_DP_LANE0_SHIFT 16 +#define PR_LANE2_DP_LANE0_MASK (0xff << 16) +#define PR_LANE2_DP_LANE0_D0_LEVEL0 (0 << 16) +#define PR_LANE2_DP_LANE0_D1_LEVEL0 (0 << 16) +#define PR_LANE2_DP_LANE0_D2_LEVEL0 (0 << 16) +#define PR_LANE2_DP_LANE0_D3_LEVEL0 (0 << 16) +#define PR_LANE2_DP_LANE0_D0_LEVEL1 (4 << 16) +#define PR_LANE2_DP_LANE0_D1_LEVEL1 (6 << 16) +#define PR_LANE2_DP_LANE0_D2_LEVEL1 (17 << 16) +#define PR_LANE2_DP_LANE0_D0_LEVEL2 (8 << 16) +#define PR_LANE2_DP_LANE0_D1_LEVEL2 (13 << 16) +#define PR_LANE2_DP_LANE0_D0_LEVEL3 (17 << 16) +#define PR_LANE1_DP_LANE1_SHIFT 8 +#define PR_LANE1_DP_LANE1_MASK (0xff >> 8) +#define PR_LANE1_DP_LANE1_D0_LEVEL0 (0 >> 8) +#define PR_LANE1_DP_LANE1_D1_LEVEL0 (0 >> 8) +#define PR_LANE1_DP_LANE1_D2_LEVEL0 (0 >> 8) +#define PR_LANE1_DP_LANE1_D3_LEVEL0 (0 >> 8) +#define PR_LANE1_DP_LANE1_D0_LEVEL1 (4 >> 8) +#define PR_LANE1_DP_LANE1_D1_LEVEL1 (6 >> 8) +#define PR_LANE1_DP_LANE1_D2_LEVEL1 (17 >> 8) +#define PR_LANE1_DP_LANE1_D0_LEVEL2 (8 >> 8) +#define PR_LANE1_DP_LANE1_D1_LEVEL2 (13 >> 8) +#define PR_LANE1_DP_LANE1_D0_LEVEL3 (17 >> 8) +#define PR_LANE0_DP_LANE2_SHIFT 0 +#define PR_LANE0_DP_LANE2_MASK 0xff +#define PR_LANE0_DP_LANE2_D0_LEVEL0 0 +#define PR_LANE0_DP_LANE2_D1_LEVEL0 0 +#define PR_LANE0_DP_LANE2_D2_LEVEL0 0 +#define PR_LANE0_DP_LANE2_D3_LEVEL0 0 +#define PR_LANE0_DP_LANE2_D0_LEVEL1 4 +#define PR_LANE0_DP_LANE2_D1_LEVEL1 6 +#define PR_LANE0_DP_LANE2_D2_LEVEL1 17 +#define PR_LANE0_DP_LANE2_D0_LEVEL2 8 +#define PR_LANE0_DP_LANE2_D1_LEVEL2 13 +#define PR_LANE0_DP_LANE2_D0_LEVEL3 17 +#define LANE4_PREEMPHASIS(i) (0x54 + (i)) +#define POSTCURSOR(i) (0x56 + (i)) +#define DP_CONFIG(i) (0x58 + (i)) +#define DP_CONFIG_RD_RESET_VAL_SHIFT 31 +#define DP_CONFIG_RD_RESET_VAL_POSITIVE (0 << 31) +#define DP_CONFIG_RD_RESET_VAL_NEGATIVE (1 << 31) +#define DP_CONFIG_IDLE_BEFORE_ATTACH_SHIFT 28 +#define DP_CONFIG_IDLE_BEFORE_ATTACH_DISABLE (0 << 28) +#define DP_CONFIG_IDLE_BEFORE_ATTACH_ENABLE (1 << 28) +#define DP_CONFIG_ACTIVESYM_CNTL_SHIFT 26 +#define DP_CONFIG_ACTIVESYM_CNTL_DISABLE (0 << 26) +#define DP_CONFIG_ACTIVESYM_CNTL_ENABLE (1 << 26) +#define DP_CONFIG_ACTIVESYM_POLARITY_SHIFT 24 +#define DP_CONFIG_ACTIVESYM_POLARITY_NEGATIVE (0 << 24) +#define DP_CONFIG_ACTIVESYM_POLARITY_POSITIVE (1 << 24) +#define DP_CONFIG_ACTIVESYM_FRAC_SHIFT 16 +#define DP_CONFIG_ACTIVESYM_FRAC_MASK (0xf << 16) +#define DP_CONFIG_ACTIVESYM_COUNT_SHIFT 8 +#define DP_CONFIG_ACTIVESYM_COUNT_MASK (0x7f << 8) +#define DP_CONFIG_WATERMARK_SHIFT 0 +#define DP_CONFIG_WATERMARK_MASK 0x3f +#define DP_MN(i) (0x5a + i) +#define DP_MN_M_MOD_SHIFT 30 +#define DP_MN_M_MOD_DEFAULT_MASK (3 << 30) +#define DP_MN_M_MOD_NONE (0 << 30) +#define DP_MN_M_MOD_INC (1 << 30) +#define DP_MN_M_MOD_DEC (2 << 30) +#define DP_MN_M_DELTA_SHIFT 24 +#define DP_MN_M_DELTA_DEFAULT_MASK (0xf << 24) +#define DP_MN_N_VAL_SHIFT 0 +#define DP_MN_N_VAL_DEFAULT_MASK 0xffffff +#define DP_PADCTL(i) (0x5c + (i)) +#define DP_PADCTL_SPARE_SHIFT 25 +#define DP_PADCTL_SPARE_DEFAULT_MASK (0x7f << 25) +#define DP_PADCTL_VCO_2X_SHIFT 24 +#define DP_PADCTL_VCO_2X_DISABLE (0 << 24) +#define DP_PADCTL_VCO_2X_ENABLE (1 << 24) +#define DP_PADCTL_PAD_CAL_PD_SHIFT 23 +#define DP_PADCTL_PAD_CAL_PD_POWERUP (0 << 23) +#define DP_PADCTL_PAD_CAL_PD_POWERDOWN (1 << 23) +#define DP_PADCTL_TX_PU_SHIFT 22 +#define DP_PADCTL_TX_PU_DISABLE (0 << 22) +#define DP_PADCTL_TX_PU_ENABLE (1 << 22) +#define DP_PADCTL_TX_PU_MASK (1 << 22) +#define DP_PADCTL_REG_CTRL_SHIFT 20 +#define DP_PADCTL_REG_CTRL_DEFAULT_MASK (3 << 20) +#define DP_PADCTL_VCMMODE_SHIFT 16 +#define DP_PADCTL_VCMMODE_DEFAULT_MASK (0xf << 16) +#define DP_PADCTL_VCMMODE_TRISTATE (0 << 16) +#define DP_PADCTL_VCMMODE_TEST_MUX (1 << 16) +#define DP_PADCTL_VCMMODE_WEAK_PULLDOWN (2 << 16) +#define DP_PADCTL_VCMMODE_STRONG_PULLDOWN (4 << 16) +#define DP_PADCTL_TX_PU_VALUE_SHIFT 8 +#define DP_PADCTL_TX_PU_VALUE_DEFAULT_MASK (0xff << 8) +#define DP_PADCTL_COMODE_TXD_3_DP_TXD_3_SHIFT 7 +#define DP_PADCTL_COMODE_TXD_3_DP_TXD_3_DISABLE (0 << 7) +#define DP_PADCTL_COMODE_TXD_3_DP_TXD_3_ENABLE (1 << 7) +#define DP_PADCTL_COMODE_TXD_2_DP_TXD_0_SHIFT 6 +#define DP_PADCTL_COMODE_TXD_2_DP_TXD_0_DISABLE (0 << 6) +#define DP_PADCTL_COMODE_TXD_2_DP_TXD_0_ENABLE (1 << 6) +#define DP_PADCTL_COMODE_TXD_1_DP_TXD_1_SHIFT 5 +#define DP_PADCTL_COMODE_TXD_1_DP_TXD_1_DISABLE (0 << 5) +#define DP_PADCTL_COMODE_TXD_1_DP_TXD_1_ENABLE (1 << 5) +#define DP_PADCTL_COMODE_TXD_0_DP_TXD_2_SHIFT 4 +#define DP_PADCTL_COMODE_TXD_0_DP_TXD_2_DISABLE (0 << 4) +#define DP_PADCTL_COMODE_TXD_0_DP_TXD_2_ENABLE (1 << 4) +#define DP_PADCTL_PD_TXD_3_SHIFT 3 +#define DP_PADCTL_PD_TXD_3_YES (0 << 3) +#define DP_PADCTL_PD_TXD_3_NO (1 << 3) +#define DP_PADCTL_PD_TXD_0_SHIFT 2 +#define DP_PADCTL_PD_TXD_0_YES (0 << 2) +#define DP_PADCTL_PD_TXD_0_NO (1 << 2) +#define DP_PADCTL_PD_TXD_1_SHIFT 1 +#define DP_PADCTL_PD_TXD_1_YES (0 << 1) +#define DP_PADCTL_PD_TXD_1_NO (1 << 1) +#define DP_PADCTL_PD_TXD_2_SHIFT 0 +#define DP_PADCTL_PD_TXD_2_YES 0 +#define DP_PADCTL_PD_TXD_2_NO 1 +#define DP_DEBUG(i) (0x5e + i) +#define DP_SPARE(i) (0x60 + (i)) +#define DP_SPARE_REG_SHIFT 3 +#define DP_SPARE_REG_DEFAULT_MASK (0x1fffffff << 3) +#define DP_SPARE_SOR_CLK_SEL_SHIFT 2 +#define DP_SPARE_SOR_CLK_SEL_DEFAULT_MASK (1 << 2) +#define DP_SPARE_SOR_CLK_SEL_SAFE_SORCLK (0 << 2) +#define DP_SPARE_SOR_CLK_SEL_MACRO_SORCLK (1 << 2) +#define DP_SPARE_PANEL_SHIFT 1 +#define DP_SPARE_PANEL_EXTERNAL (0 << 1) +#define DP_SPARE_PANEL_INTERNAL (1 << 1) +#define DP_SPARE_SEQ_ENABLE_SHIFT 0 +#define DP_SPARE_SEQ_ENABLE_NO 0 +#define DP_SPARE_SEQ_ENABLE_YES 1 +#define DP_AUDIO_CTRL 0x62 +#define DP_AUDIO_HBLANK_SYMBOLS 0x63 +#define DP_AUDIO_HBLANK_SYMBOLS_MASK 0x1ffff +#define DP_AUDIO_HBLANK_SYMBOLS_VALUE_SHIFT 0 +#define DP_AUDIO_VBLANK_SYMBOLS 0x64 +#define DP_AUDIO_VBLANK_SYMBOLS_MASK 0x1ffff +#define DP_AUDIO_VBLANK_SYMBOLS_SHIFT 0 +#define DP_GENERIC_INFOFRAME_HEADER 0x65 +#define DP_GENERIC_INFOFRAME_SUBPACK(i) (0x66 + (i)) +#define DP_TPG 0x6d +#define DP_TPG_LANE3_CHANNELCODING_SHIFT 30 +#define DP_TPG_LANE3_CHANNELCODING_DISABLE (0 << 30) +#define DP_TPG_LANE3_CHANNELCODING_ENABLE (1 << 30) +#define DP_TPG_LANE3_SCRAMBLEREN_SHIFT 28 +#define DP_TPG_LANE3_SCRAMBLEREN_ENABLE_GALIOS (1 << 28) +#define DP_TPG_LANE3_SCRAMBLEREN_ENABLE_FIBONACCI (2 << 28) +#define DP_TPG_LANE3_PATTERN_SHIFT 24 +#define DP_TPG_LANE3_PATTERN_DEFAULT_MASK (0xf << 24) +#define DP_TPG_LANE3_PATTERN_NOPATTERN (0 << 24) +#define DP_TPG_LANE3_PATTERN_TRAINING1 (1 << 24) +#define DP_TPG_LANE3_PATTERN_TRAINING2 (2 << 24) +#define DP_TPG_LANE3_PATTERN_TRAINING3 (3 << 24) +#define DP_TPG_LANE3_PATTERN_D102 (4 << 24) +#define DP_TPG_LANE3_PATTERN_SBLERRRATE (5 << 24) +#define DP_TPG_LANE3_PATTERN_PRBS7 (6 << 24) +#define DP_TPG_LANE3_PATTERN_CSTM (7 << 24) +#define DP_TPG_LANE3_PATTERN_HBR2_COMPLIANCE (8 << 24) +#define DP_TPG_LANE2_CHANNELCODING_SHIFT 22 +#define DP_TPG_LANE2_CHANNELCODING_DISABLE (0 << 22) +#define DP_TPG_LANE2_CHANNELCODING_ENABLE (1 << 22) +#define DP_TPG_LANE2_SCRAMBLEREN_SHIFT 20 +#define DP_TPG_LANE2_SCRAMBLEREN_DEFAULT_MASK (3 << 20) +#define DP_TPG_LANE2_SCRAMBLEREN_DISABLE (0 << 20) +#define DP_TPG_LANE2_SCRAMBLEREN_ENABLE_GALIOS (1 << 20) +#define DP_TPG_LANE2_SCRAMBLEREN_ENABLE_FIBONACCI (2 << 20) +#define DP_TPG_LANE2_PATTERN_SHIFT 16 +#define DP_TPG_LANE2_PATTERN_DEFAULT_MASK (0xf << 16) +#define DP_TPG_LANE2_PATTERN_NOPATTERN (0 << 16) +#define DP_TPG_LANE2_PATTERN_TRAINING1 (1 << 16) +#define DP_TPG_LANE2_PATTERN_TRAINING2 (2 << 16) +#define DP_TPG_LANE2_PATTERN_TRAINING3 (3 << 16) +#define DP_TPG_LANE2_PATTERN_D102 (4 << 16) +#define DP_TPG_LANE2_PATTERN_SBLERRRATE (5 << 16) +#define DP_TPG_LANE2_PATTERN_PRBS7 (6 << 16) +#define DP_TPG_LANE2_PATTERN_CSTM (7 << 16) +#define DP_TPG_LANE2_PATTERN_HBR2_COMPLIANCE (8 << 16) +#define DP_TPG_LANE1_CHANNELCODING_SHIFT 14 +#define DP_TPG_LANE1_CHANNELCODING_DISABLE (0 << 14) +#define DP_TPG_LANE1_CHANNELCODING_ENABLE (1 << 14) +#define DP_TPG_LANE1_SCRAMBLEREN_SHIFT 12 +#define DP_TPG_LANE1_SCRAMBLEREN_DEFAULT_MASK (3 << 12) +#define DP_TPG_LANE1_SCRAMBLEREN_DISABLE (0 << 12) +#define DP_TPG_LANE1_SCRAMBLEREN_ENABLE_GALIOS (1 << 12) +#define DP_TPG_LANE1_SCRAMBLEREN_ENABLE_FIBONACCI (2 << 12) +#define DP_TPG_LANE1_PATTERN_SHIFT 8 +#define DP_TPG_LANE1_PATTERN_DEFAULT_MASK (0xf << 8) +#define DP_TPG_LANE1_PATTERN_NOPATTERN (0 << 8) +#define DP_TPG_LANE1_PATTERN_TRAINING1 (1 << 8) +#define DP_TPG_LANE1_PATTERN_TRAINING2 (2 << 8) +#define DP_TPG_LANE1_PATTERN_TRAINING3 (3 << 8) +#define DP_TPG_LANE1_PATTERN_D102 (4 << 8) +#define DP_TPG_LANE1_PATTERN_SBLERRRATE (5 << 8) +#define DP_TPG_LANE1_PATTERN_PRBS7 (6 << 8) +#define DP_TPG_LANE1_PATTERN_CSTM (7 << 8) +#define DP_TPG_LANE1_PATTERN_HBR2_COMPLIANCE (8 << 8) +#define DP_TPG_LANE0_CHANNELCODING_SHIFT 6 +#define DP_TPG_LANE0_CHANNELCODING_DISABLE (0 << 6) +#define DP_TPG_LANE0_CHANNELCODING_ENABLE (1 << 6) +#define DP_TPG_LANE0_SCRAMBLEREN_SHIFT 4 +#define DP_TPG_LANE0_SCRAMBLEREN_DEFAULT_MASK (3 << 4) +#define DP_TPG_LANE0_SCRAMBLEREN_DISABLE (0 << 4) +#define DP_TPG_LANE0_SCRAMBLEREN_ENABLE_GALIOS (1 << 4) +#define DP_TPG_LANE0_SCRAMBLEREN_ENABLE_FIBONACCI (2 << 4) +#define DP_TPG_LANE0_PATTERN_SHIFT 0 +#define DP_TPG_LANE0_PATTERN_DEFAULT_MASK 0xf +#define DP_TPG_LANE0_PATTERN_NOPATTERN 0 +#define DP_TPG_LANE0_PATTERN_TRAINING1 1 +#define DP_TPG_LANE0_PATTERN_TRAINING2 2 +#define DP_TPG_LANE0_PATTERN_TRAINING3 3 +#define DP_TPG_LANE0_PATTERN_D102 4 +#define DP_TPG_LANE0_PATTERN_SBLERRRATE 5 +#define DP_TPG_LANE0_PATTERN_PRBS7 6 +#define DP_TPG_LANE0_PATTERN_CSTM 7 +#define DP_TPG_LANE0_PATTERN_HBR2_COMPLIANCE 8 + +enum { + training_pattern_disabled = 0, + training_pattern_1 = 1, + training_pattern_2 = 2, + training_pattern_3 = 3, + training_pattern_none = 0xff +}; + +enum tegra_dc_sor_protocol { + SOR_DP, + SOR_LVDS, +}; + +#define SOR_LINK_SPEED_G1_62 6 +#define SOR_LINK_SPEED_G2_7 10 +#define SOR_LINK_SPEED_G5_4 20 +#define SOR_LINK_SPEED_LVDS 7 + +struct tegra_dp_link_config { + int is_valid; + + /* Supported configuration */ + u8 max_link_bw; + u8 max_lane_count; + int downspread; + int support_enhanced_framing; + u32 bits_per_pixel; + int alt_scramber_reset_cap; /* true for eDP */ + int only_enhanced_framing; /* enhanced_frame_en ignored */ + int frame_in_ms; + + /* Actual configuration */ + u8 link_bw; + u8 lane_count; + int enhanced_framing; + int scramble_ena; + + u32 activepolarity; + u32 active_count; + u32 tu_size; + u32 active_frac; + u32 watermark; + + s32 hblank_sym; + s32 vblank_sym; + + /* Training data */ + u32 drive_current; + u32 preemphasis; + u32 postcursor; + u8 aux_rd_interval; + u8 tps3_supported; +}; + +struct tegra_dc_sor_data { + void *base; + void *pmc_base; + u8 portnum; /* 0 or 1 */ + int power_is_up; +}; + +#define TEGRA_SOR_TIMEOUT_MS 1000 +#define TEGRA_SOR_ATTACH_TIMEOUT_MS 1000 + +int tegra_dc_sor_enable_dp(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg); +int tegra_dc_sor_set_power_state(struct tegra_dc_sor_data *sor, int pu_pd); +void tegra_dc_sor_set_dp_linkctl(struct tegra_dc_sor_data *sor, int ena, + u8 training_pattern, const struct tegra_dp_link_config *link_cfg); +void tegra_dc_sor_set_link_bandwidth(struct tegra_dc_sor_data *sor, u8 link_bw); +void tegra_dc_sor_set_lane_count(struct tegra_dc_sor_data *sor, u8 lane_count); +void tegra_dc_sor_set_panel_power(struct tegra_dc_sor_data *sor, + int power_up); +void tegra_dc_sor_set_internal_panel(struct tegra_dc_sor_data *sor, int is_int); +void tegra_dc_sor_read_link_config(struct tegra_dc_sor_data *sor, u8 *link_bw, + u8 *lane_count); +void tegra_dc_sor_set_lane_parm(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg); +void tegra_dc_sor_power_down_unused_lanes(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg); +int tegra_dc_sor_set_voltage_swing(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg); +int tegra_sor_precharge_lanes(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *cfg); +void tegra_dp_disable_tx_pu(struct tegra_dc_sor_data *sor); +void tegra_dp_set_pe_vs_pc(struct tegra_dc_sor_data *sor, u32 mask, + u32 pe_reg, u32 vs_reg, u32 pc_reg, u8 pc_supported); + +int tegra_dc_sor_attach(struct tegra_dc_sor_data *sor, + const struct tegra_dp_link_config *link_cfg, + const struct display_timing *timing); +int tegra_dc_sor_detach(struct tegra_dc_sor_data *sor); + +void tegra_dc_sor_disable_win_short_raster(struct dc_ctlr *disp_ctrl, + int *dc_reg_ctx); +int tegra_dc_sor_general_act(struct dc_ctlr *disp_ctrl); +void tegra_dc_sor_restore_win_and_raster(struct dc_ctlr *disp_ctrl, + int *dc_reg_ctx); + +int tegra_dc_sor_init(struct tegra_dc_sor_data **sorp); +#endif diff --git a/drivers/video/tegra124/tegra124-lcd.c b/drivers/video/tegra124/tegra124-lcd.c new file mode 100644 index 0000000..2733590 --- /dev/null +++ b/drivers/video/tegra124/tegra124-lcd.c @@ -0,0 +1,97 @@ +/* + * Copyright 2014 Google Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#include <common.h> +#include <errno.h> +#include <fdtdec.h> +#include <lcd.h> +#include <asm/gpio.h> +#include <asm/arch-tegra/clk_rst.h> +#include <asm/arch/clock.h> +#include <asm/arch-tegra/dc.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +enum { + /* Maximum LCD size we support */ + LCD_MAX_WIDTH = 1920, + LCD_MAX_HEIGHT = 1200, + LCD_MAX_LOG2_BPP = 4, /* 2^4 = 16 bpp */ +}; + +vidinfo_t panel_info = { + /* Insert a value here so that we don't end up in the BSS */ + .vl_col = -1, +}; + +int tegra_lcd_check_next_stage(const void *blob, int wait) +{ + return 0; +} + +void tegra_lcd_early_init(const void *blob) +{ + /* + * Go with the maximum size for now. We will fix this up after + * relocation. These values are only used for memory alocation. + */ + panel_info.vl_col = LCD_MAX_WIDTH; + panel_info.vl_row = LCD_MAX_HEIGHT; + panel_info.vl_bpix = LCD_MAX_LOG2_BPP; +} + +static int tegra124_lcd_init(void *lcdbase) +{ + struct display_timing timing; + int ret; + + clock_set_up_plldp(); + clock_adjust_periph_pll_div(PERIPH_ID_HOST1X, CLOCK_ID_PERIPH, + 408000000, NULL); + + clock_enable(PERIPH_ID_HOST1X); + clock_enable(PERIPH_ID_DISP1); + clock_enable(PERIPH_ID_PWM); + clock_enable(PERIPH_ID_DPAUX); + clock_enable(PERIPH_ID_SOR0); + + udelay(2); + + reset_set_enable(PERIPH_ID_HOST1X, 0); + reset_set_enable(PERIPH_ID_DISP1, 0); + reset_set_enable(PERIPH_ID_PWM, 0); + reset_set_enable(PERIPH_ID_DPAUX, 0); + reset_set_enable(PERIPH_ID_SOR0, 0); + + ret = display_init(lcdbase, 1 << LCD_BPP, &timing); + if (ret) + return ret; + + panel_info.vl_col = roundup(timing.hactive.typ, 16); + panel_info.vl_row = timing.vactive.typ; + + lcd_set_flush_dcache(1); + + return 0; +} + +void lcd_ctrl_init(void *lcdbase) +{ + ulong start; + int ret; + + start = get_timer(0); + ret = tegra124_lcd_init(lcdbase); + debug("LCD init took %lu ms\n", get_timer(start)); + if (ret) + printf("%s: Error %d\n", __func__, ret); +} + +void lcd_enable(void) +{ +} |