diff options
Diffstat (limited to 'board/freescale/mx6qsabreauto/mx6qsabreauto.c')
| -rw-r--r-- | board/freescale/mx6qsabreauto/mx6qsabreauto.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c index 0c592fe..0fd9e77 100644 --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c @@ -23,6 +23,10 @@ #include <miiphy.h> #include <netdev.h> #include <asm/arch/sys_proto.h> +#include <asm/arch/mxc_hdmi.h> +#include <linux/fb.h> +#include <ipu_pixfmt.h> + #include <i2c.h> #ifdef CONFIG_CMD_SATA @@ -553,6 +557,199 @@ int board_phy_config(struct phy_device *phydev) return 0; } +#if defined(CONFIG_VIDEO_IPUV3) +struct display_info_t { + int bus; + int addr; + int pixfmt; + int (*detect)(struct display_info_t const *dev); + void (*enable)(struct display_info_t const *dev); + struct fb_videomode mode; +}; + +static void disable_lvds(struct display_info_t const *dev) +{ + struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; + + int reg = readl(&iomux->gpr[2]); + + reg &= ~(IOMUXC_GPR2_LVDS_CH0_MODE_MASK | + IOMUXC_GPR2_LVDS_CH1_MODE_MASK); + + writel(reg, &iomux->gpr[2]); +} + +static void do_enable_hdmi(struct display_info_t const *dev) +{ + disable_lvds(dev); + imx_enable_hdmi_phy(); +} + +static struct display_info_t const displays[] = {{ + .bus = -1, + .addr = 0, + .pixfmt = IPU_PIX_FMT_RGB666, + .detect = NULL, + .enable = NULL, + .mode = { + .name = "Hannstar-XGA", + .refresh = 60, + .xres = 1024, + .yres = 768, + .pixclock = 15385, + .left_margin = 220, + .right_margin = 40, + .upper_margin = 21, + .lower_margin = 7, + .hsync_len = 60, + .vsync_len = 10, + .sync = FB_SYNC_EXT, + .vmode = FB_VMODE_NONINTERLACED +} }, { + .bus = -1, + .addr = 0, + .pixfmt = IPU_PIX_FMT_RGB24, + .detect = NULL, + .enable = do_enable_hdmi, + .mode = { + .name = "HDMI", + .refresh = 60, + .xres = 640, + .yres = 480, + .pixclock = 39721, + .left_margin = 48, + .right_margin = 16, + .upper_margin = 33, + .lower_margin = 10, + .hsync_len = 96, + .vsync_len = 2, + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED +} } }; + +int board_video_skip(void) +{ + int i; + int ret; + char const *panel = getenv("panel"); + + if (!panel) { + for (i = 0; i < ARRAY_SIZE(displays); i++) { + struct display_info_t const *dev = displays+i; + if (dev->detect && dev->detect(dev)) { + panel = dev->mode.name; + printf("auto-detected panel %s\n", panel); + break; + } + } + if (!panel) { + panel = displays[0].mode.name; + printf("No panel detected: default to %s\n", panel); + i = 0; + } + } else { + for (i = 0; i < ARRAY_SIZE(displays); i++) { + if (!strcmp(panel, displays[i].mode.name)) + break; + } + } + + if (i < ARRAY_SIZE(displays)) { + ret = ipuv3_fb_init(&displays[i].mode, 0, + displays[i].pixfmt); + if (!ret) { + if (displays[i].enable) + displays[i].enable(displays+i); + printf("Display: %s (%ux%u)\n", + displays[i].mode.name, + displays[i].mode.xres, + displays[i].mode.yres); + } else + printf("LCD %s cannot be configured: %d\n", + displays[i].mode.name, ret); + } else { + printf("unsupported panel %s\n", panel); + return -EINVAL; + } + + return 0; +} + +iomux_v3_cfg_t const backlight_pads[] = { + MX6_PAD_SD4_DAT1__GPIO2_IO09 | MUX_PAD_CTRL(ENET_PAD_CTRL), +}; + +static void setup_iomux_backlight(void) +{ + gpio_direction_output(IMX_GPIO_NR(2, 9), 1); + imx_iomux_v3_setup_multiple_pads(backlight_pads, + ARRAY_SIZE(backlight_pads)); +} + +static void setup_display(void) +{ + struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; + int reg; + + setup_iomux_backlight(); + enable_ipu_clock(); + imx_setup_hdmi(); + + /* Turn on LDB_DI0 and LDB_DI1 clocks */ + reg = readl(&mxc_ccm->CCGR3); + reg |= MXC_CCM_CCGR3_LDB_DI0_MASK | MXC_CCM_CCGR3_LDB_DI1_MASK; + writel(reg, &mxc_ccm->CCGR3); + + /* Set LDB_DI0 and LDB_DI1 clk select to 3b'011 */ + reg = readl(&mxc_ccm->cs2cdr); + reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK | + MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK); + reg |= (3 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET) | + (3 << MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET); + writel(reg, &mxc_ccm->cs2cdr); + + reg = readl(&mxc_ccm->cscmr2); + reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV | MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV; + writel(reg, &mxc_ccm->cscmr2); + + reg = readl(&mxc_ccm->chsccdr); + reg |= (CHSCCDR_CLK_SEL_LDB_DI0 << + MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); + reg |= (CHSCCDR_CLK_SEL_LDB_DI0 << + MXC_CCM_CHSCCDR_IPU1_DI1_CLK_SEL_OFFSET); + writel(reg, &mxc_ccm->chsccdr); + + reg = IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_LOW | + IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW | + IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG | + IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT | + IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG | + IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT | + IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0 | + IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED; + writel(reg, &iomux->gpr[2]); + + reg = readl(&iomux->gpr[3]); + reg &= ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK | + IOMUXC_GPR3_HDMI_MUX_CTL_MASK); + reg |= (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 << + IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET) | + (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 << + IOMUXC_GPR3_HDMI_MUX_CTL_OFFSET); + writel(reg, &iomux->gpr[3]); +} +#endif /* CONFIG_VIDEO_IPUV3 */ + +/* + * Do not overwrite the console + * Use always serial for U-Boot console + */ +int overwrite_console(void) +{ + return 1; +} + int board_eth_init(bd_t *bis) { setup_iomux_enet(); @@ -601,6 +798,10 @@ int board_early_init_f(void) { setup_iomux_uart(); +#if defined(CONFIG_VIDEO_IPUV3) + setup_display(); +#endif + #ifdef CONFIG_SYS_USE_SPINOR setup_spinor(); #endif |