[U-Boot] [PATCH v3 1/2] wandboard: add Future Eletronics 7" WVGA LCD extension board
Otavio Salvador
otavio at ossystems.com.br
Fri May 2 00:02:31 CEST 2014
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 at 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 at 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"
--
2.0.0.rc0
More information about the U-Boot
mailing list