This adds support for the 7" WVGA produced by Future Eletronics and make it dynamically detect if it is connected or not based on the touchscreen controller.
Signed-off-by: Otavio Salvador otavio@ossystems.com.br ---
Changes in v3: - Drop LVDS related code (unused)
Changes in v2: - Drop LDB related code (unused)
board/wandboard/wandboard.c | 147 ++++++++++++++++++++++++++++++++++++-------- include/configs/wandboard.h | 7 +++ 2 files changed, 128 insertions(+), 26 deletions(-)
diff --git a/board/wandboard/wandboard.c b/board/wandboard/wandboard.c index f1951dc..311a442 100644 --- a/board/wandboard/wandboard.c +++ b/board/wandboard/wandboard.c @@ -1,5 +1,6 @@ /* * Copyright (C) 2013 Freescale Semiconductor, Inc. + * Copyright (C) 2014 O.S. Systems Software LTDA. * * Author: Fabio Estevam fabio.estevam@freescale.com * @@ -15,18 +16,19 @@ #include <asm/arch/sys_proto.h> #include <asm/gpio.h> #include <asm/imx-common/iomux-v3.h> +#include <asm/imx-common/mxc_i2c.h> #include <asm/imx-common/boot_mode.h> +#include <asm/imx-common/video.h> #include <asm/io.h> #include <linux/sizes.h> #include <common.h> #include <fsl_esdhc.h> -#include <ipu_pixfmt.h> #include <mmc.h> #include <miiphy.h> #include <netdev.h> -#include <linux/fb.h> #include <phy.h> #include <input.h> +#include <i2c.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -41,6 +43,10 @@ DECLARE_GLOBAL_DATA_PTR; #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ + PAD_CTL_ODE | PAD_CTL_SRE_FAST) + #define USDHC1_CD_GPIO IMX_GPIO_NR(1, 2) #define USDHC3_CD_GPIO IMX_GPIO_NR(3, 9) #define ETH_PHY_RESET IMX_GPIO_NR(3, 29) @@ -210,41 +216,124 @@ int board_phy_config(struct phy_device *phydev) }
#if defined(CONFIG_VIDEO_IPUV3) -static struct fb_videomode const hdmi = { - .name = "HDMI", - .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 +struct i2c_pads_info i2c2_pad_info = { + .scl = { + .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL + | MUX_PAD_CTRL(I2C_PAD_CTRL), + .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 + | MUX_PAD_CTRL(I2C_PAD_CTRL), + .gp = IMX_GPIO_NR(4, 12) + }, + .sda = { + .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA + | MUX_PAD_CTRL(I2C_PAD_CTRL), + .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 + | MUX_PAD_CTRL(I2C_PAD_CTRL), + .gp = IMX_GPIO_NR(4, 13) + } };
-int board_video_skip(void) -{ - int ret; +static iomux_v3_cfg_t const fwadapt_7wvga_pads[] = { + MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK, + MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02, /* HSync */ + MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03, /* VSync */ + MX6_PAD_DI0_PIN4__IPU1_DI0_PIN04 + | MUX_PAD_CTRL(PAD_CTL_DSE_120ohm), /* Contrast */ + MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15, /* DISP0_DRDY */ + + MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00, + MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01, + MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02, + MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03, + MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04, + MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05, + MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06, + MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07, + MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08, + MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09, + MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10, + MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11, + MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12, + MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13, + MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14, + MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15, + MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16, + MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17, + + MX6_PAD_SD4_DAT2__GPIO2_IO10 + | MUX_PAD_CTRL(NO_PAD_CTRL), /* DISP0_BKLEN */ + MX6_PAD_SD4_DAT3__GPIO2_IO11 + | MUX_PAD_CTRL(NO_PAD_CTRL), /* DISP0_VDDEN */ +};
- ret = ipuv3_fb_init(&hdmi, 0, IPU_PIX_FMT_RGB24); +static void do_enable_hdmi(struct display_info_t const *dev) +{ + imx_enable_hdmi_phy(); +}
- if (ret) { - printf("HDMI cannot be configured: %d\n", ret); - return ret; - } +static int detect_i2c(struct display_info_t const *dev) +{ + return (0 == i2c_set_bus_num(dev->bus)) && + (0 == i2c_probe(dev->addr)); +}
- imx_enable_hdmi_phy(); +static void enable_fwadapt_7wvga(struct display_info_t const *dev) +{ + imx_iomux_v3_setup_multiple_pads( + fwadapt_7wvga_pads, + ARRAY_SIZE(fwadapt_7wvga_pads));
- return ret; + gpio_direction_output(IMX_GPIO_NR(2, 10), 1); + gpio_direction_output(IMX_GPIO_NR(2, 11), 1); }
+struct display_info_t const displays[] = {{ + .bus = -1, + .addr = 0, + .pixfmt = IPU_PIX_FMT_RGB24, + .detect = detect_hdmi, + .enable = do_enable_hdmi, + .mode = { + .name = "HDMI", + .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 = 0x10, + .pixfmt = IPU_PIX_FMT_RGB666, + .detect = detect_i2c, + .enable = enable_fwadapt_7wvga, + .mode = { + .name = "FWBADAPT-LCD-F07A-0102", + .refresh = 60, + .xres = 800, + .yres = 480, + .pixclock = 33260, + .left_margin = 128, + .right_margin = 128, + .upper_margin = 22, + .lower_margin = 22, + .hsync_len = 1, + .vsync_len = 1, + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED +} } }; +size_t display_count = ARRAY_SIZE(displays); + 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;
enable_ipu_clock(); @@ -254,6 +343,10 @@ static void setup_display(void) reg |= (CHSCCDR_CLK_SEL_LDB_DI0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); writel(reg, &mxc_ccm->chsccdr); + + /* Disable LCD backlight */ + imx_iomux_v3_setup_pad(MX6_PAD_DI0_PIN4__GPIO4_IO20); + gpio_direction_input(IMX_GPIO_NR(4, 20)); } #endif /* CONFIG_VIDEO_IPUV3 */
@@ -305,6 +398,8 @@ int board_init(void) /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+ setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c2_pad_info); + return 0; }
diff --git a/include/configs/wandboard.h b/include/configs/wandboard.h index a49544f..6defc00 100644 --- a/include/configs/wandboard.h +++ b/include/configs/wandboard.h @@ -58,6 +58,12 @@ #define CONFIG_LOADADDR 0x12000000 #define CONFIG_SYS_TEXT_BASE 0x17800000
+/* I2C Configs */ +#define CONFIG_CMD_I2C +#define CONFIG_SYS_I2C +#define CONFIG_SYS_I2C_MXC +#define CONFIG_SYS_I2C_SPEED 100000 + /* MMC Configuration */ #define CONFIG_FSL_ESDHC #define CONFIG_FSL_USDHC @@ -116,6 +122,7 @@ #define CONFIG_VIDEO_BMP_LOGO #define CONFIG_IPUV3_CLK 260000000 #define CONFIG_IMX_HDMI +#define CONFIG_IMX_VIDEO_SKIP
#if defined(CONFIG_MX6DL) || defined(CONFIG_MX6S) #define CONFIG_DEFAULT_FDT_FILE "imx6dl-wandboard.dtb"