diff options
Diffstat (limited to 'board/freescale/mx6sxsabresd/mx6sxsabresd.c')
| -rw-r--r-- | board/freescale/mx6sxsabresd/mx6sxsabresd.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c index 9825c82..6a4311b 100644 --- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c +++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c @@ -28,6 +28,11 @@ #include <asm/arch/imx-rdc.h> #endif +#ifdef CONFIG_VIDEO_MXS +#include <linux/fb.h> +#include <mxsfb.h> +#endif + #ifdef CONFIG_FASTBOOT #include <fastboot.h> #ifdef CONFIG_ANDROID_RECOVERY @@ -61,6 +66,9 @@ DECLARE_GLOBAL_DATA_PTR; PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ PAD_CTL_ODE) +#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm) + #define BUTTON_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ PAD_CTL_PUS_22K_UP | PAD_CTL_DSE_40ohm) @@ -356,6 +364,159 @@ void board_late_mmc_init(void) #endif +#ifdef CONFIG_VIDEO_MXS +static iomux_v3_cfg_t const lvds_ctrl_pads[] = { + /* CABC enable */ + MX6SX_PAD_QSPI1A_DATA2__GPIO4_IO_18 | MUX_PAD_CTRL(NO_PAD_CTRL), + + /* Use GPIO for Brightness adjustment, duty cycle = period */ + MX6SX_PAD_SD1_DATA1__GPIO6_IO_3 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static iomux_v3_cfg_t const lcd_pads[] = { + MX6SX_PAD_LCD1_CLK__LCDIF1_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_ENABLE__LCDIF1_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_HSYNC__LCDIF1_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_VSYNC__LCDIF1_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA00__LCDIF1_DATA_0 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA01__LCDIF1_DATA_1 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA02__LCDIF1_DATA_2 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA03__LCDIF1_DATA_3 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA04__LCDIF1_DATA_4 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA05__LCDIF1_DATA_5 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA06__LCDIF1_DATA_6 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA07__LCDIF1_DATA_7 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA08__LCDIF1_DATA_8 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA09__LCDIF1_DATA_9 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA10__LCDIF1_DATA_10 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA11__LCDIF1_DATA_11 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA12__LCDIF1_DATA_12 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA13__LCDIF1_DATA_13 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA14__LCDIF1_DATA_14 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA15__LCDIF1_DATA_15 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA16__LCDIF1_DATA_16 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA17__LCDIF1_DATA_17 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA18__LCDIF1_DATA_18 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA19__LCDIF1_DATA_19 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA20__LCDIF1_DATA_20 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA21__LCDIF1_DATA_21 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA22__LCDIF1_DATA_22 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_DATA23__LCDIF1_DATA_23 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6SX_PAD_LCD1_RESET__GPIO3_IO_27 | MUX_PAD_CTRL(NO_PAD_CTRL), + + /* Use GPIO for Brightness adjustment, duty cycle = period */ + MX6SX_PAD_SD1_DATA2__GPIO6_IO_4 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + + +struct lcd_panel_info_t { + unsigned int lcdif_base_addr; + int depth; + void (*enable)(struct lcd_panel_info_t const *dev); + struct fb_videomode mode; +}; + +void do_enable_lvds(struct lcd_panel_info_t const *dev) +{ + enable_lcdif_clock(dev->lcdif_base_addr); + enable_lvds(dev->lcdif_base_addr); + + imx_iomux_v3_setup_multiple_pads(lvds_ctrl_pads, + ARRAY_SIZE(lvds_ctrl_pads)); + + /* Enable CABC */ + gpio_direction_output(IMX_GPIO_NR(4, 18) , 1); + + /* Set Brightness to high */ + gpio_direction_output(IMX_GPIO_NR(6, 3) , 1); +} + +void do_enable_parallel_lcd(struct lcd_panel_info_t const *dev) +{ + enable_lcdif_clock(dev->lcdif_base_addr); + + imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads)); + + /* Power up the LCD */ + gpio_direction_output(IMX_GPIO_NR(3, 27) , 1); + + /* Set Brightness to high */ + gpio_direction_output(IMX_GPIO_NR(6, 4) , 1); +} + +static struct lcd_panel_info_t const displays[] = {{ + .lcdif_base_addr = LCDIF2_BASE_ADDR, + .depth = 18, + .enable = do_enable_lvds, + .mode = { + .name = "Hannstar-XGA", + .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 = 0, + .vmode = FB_VMODE_NONINTERLACED +} }, { + .lcdif_base_addr = LCDIF1_BASE_ADDR, + .depth = 24, + .enable = do_enable_parallel_lcd, + .mode = { + .name = "MCIMX28LCD", + .xres = 800, + .yres = 480, + .pixclock = 29850, + .left_margin = 89, + .right_margin = 164, + .upper_margin = 23, + .lower_margin = 10, + .hsync_len = 10, + .vsync_len = 10, + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED +} } }; + +int board_video_skip(void) +{ + int i; + int ret; + char const *panel = getenv("panel"); + 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 = mxs_lcd_panel_setup(displays[i].mode, displays[i].depth, + displays[i].lcdif_base_addr); + 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; +} +#endif + #ifdef CONFIG_FEC_MXC int board_eth_init(bd_t *bis) { |