diff options
Diffstat (limited to 'drivers/video/mxsfb.c')
| -rw-r--r-- | drivers/video/mxsfb.c | 71 |
1 files changed, 61 insertions, 10 deletions
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 32ecbe2..c2a3a48 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -3,6 +3,8 @@ * * Copyright (C) 2011-2013 Marek Vasut <marex@denx.de> * + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. + * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> @@ -18,6 +20,11 @@ #include <asm/imx-common/dma.h> #include "videomodes.h" +#include <linux/string.h> +#include <linux/list.h> +#include <linux/fb.h> +#include <mxsfb.h> + #define PS2KHZ(ps) (1000000000UL / (ps)) @@ -35,6 +42,31 @@ __weak void mxsfb_system_setup(void) { } +static int setup; +static struct fb_videomode fbmode; +static int depth; + +int mxs_lcd_panel_setup(struct fb_videomode mode, int bpp, + uint32_t base_addr) +{ + fbmode = mode; + depth = bpp; + panel.isaBase = base_addr; + + setup = 1; + + return 0; +} + +void mxs_lcd_get_panel(struct display_panel *dispanel) +{ + dispanel->width = fbmode.xres; + dispanel->height = fbmode.yres; + dispanel->reg_base = panel.isaBase; + dispanel->gdfindex = panel.gdfIndex; + dispanel->gdfbytespp = panel.gdfBytesPP; +} + /* * DENX M28EVK: * setenv videomode @@ -50,12 +82,12 @@ __weak void mxsfb_system_setup(void) static void mxs_lcd_init(GraphicDevice *panel, struct ctfb_res_modes *mode, int bpp) { - struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE; + struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)(panel->isaBase); uint32_t word_len = 0, bus_width = 0; uint8_t valid_data = 0; /* Kick in the LCDIF clock */ - mxs_set_lcdclk(MXS_LCDIF_BASE, PS2KHZ(mode->pixclock)); + mxs_set_lcdclk(panel->isaBase, PS2KHZ(mode->pixclock)); /* Restart the LCDIF block */ mxs_reset_block(®s->hw_lcdif_ctrl_reg); @@ -133,7 +165,7 @@ static void mxs_lcd_init(GraphicDevice *panel, void lcdif_power_down(void) { - struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE; + struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)(panel.isaBase); int timeout = 1000000; if (!panel.frameAdrs) @@ -160,19 +192,37 @@ void *video_hw_init(void) puts("Video: "); - /* Suck display configuration from "videomode" variable */ - penv = getenv("videomode"); - if (!penv) { - puts("MXSFB: 'videomode' variable not set!\n"); - return NULL; + if (!setup) { + + /* Suck display configuration from "videomode" variable */ + penv = getenv("videomode"); + if (!penv) { + printf("MXSFB: 'videomode' variable not set!\n"); + return NULL; + } + + bpp = video_get_params(&mode, penv); + panel.isaBase = MXS_LCDIF_BASE; + } else { + mode.xres = fbmode.xres; + mode.yres = fbmode.yres; + mode.pixclock = fbmode.pixclock; + mode.left_margin = fbmode.left_margin; + mode.right_margin = fbmode.right_margin; + mode.upper_margin = fbmode.upper_margin; + mode.lower_margin = fbmode.lower_margin; + mode.hsync_len = fbmode.hsync_len; + mode.vsync_len = fbmode.vsync_len; + mode.sync = fbmode.sync; + mode.vmode = fbmode.vmode; + bpp = depth; } - bpp = video_get_params(&mode, penv); - /* fill in Graphic device struct */ sprintf(panel.modeIdent, "%dx%dx%d", mode.xres, mode.yres, bpp); + panel.winSizeX = mode.xres; panel.winSizeY = mode.yres; panel.plnSizeX = mode.xres; @@ -199,6 +249,7 @@ void *video_hw_init(void) panel.memSize = mode.xres * mode.yres * panel.gdfBytesPP; + /* Allocate framebuffer */ fb = memalign(ARCH_DMA_MINALIGN, roundup(panel.memSize, ARCH_DMA_MINALIGN)); |