[U-Boot] [PATCH v3 08/13] imx6: icorem6: Add framebuffer support

Jagan Teki
2016-12-05T23:00:55Z

Add IPUv3 framebuffer support for Engicam i.CoreM6 qdl board.

Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
board/engicam/icorem6/icorem6.c | 113 +++++++++++++++++++++++++++++++++++
configs/imx6qdl_icore_mmc_defconfig | 3 +
configs/imx6qdl_icore_nand_defconfig | 3 +
include/configs/imx6qdl_icore.h | 12 ++++
4 files changed, 131 insertions(+)

diff --git a/board/engicam/icorem6/icorem6.c b/board/engicam/icorem6/icorem6.c
index 587775e..171ec45 100644
--- a/board/engicam/icorem6/icorem6.c
+++ b/board/engicam/icorem6/icorem6.c
@@ -18,6 +18,7 @@
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/video.h>

DECLARE_GLOBAL_DATA_PTR;

@@ -90,6 +91,113 @@ static void setup_gpmi_nand(void)
}
#endif

+#if defined(CONFIG_VIDEO_IPUV3)
+static iomux_v3_cfg_t const rgb_pads[] = {
+ IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK),
+ IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15),
+ IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02),
+ IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03),
+ IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00),
+ IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01),
+ IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02),
+ IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03),
+ IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04),
+ IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05),
+ IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06),
+ IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07),
+ IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08),
+ IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09),
+ IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10),
+ IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11),
+ IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12),
+ IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13),
+ IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14),
+ IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15),
+ IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16),
+ IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17),
+};
+
+static void enable_rgb(struct display_info_t const *dev)
+{
+ SETUP_IOMUX_PADS(rgb_pads);
+}
+
+struct display_info_t const displays[] = {
+ {
+ .bus = -1,
+ .addr = 0,
+ .pixfmt = IPU_PIX_FMT_RGB666,
+ .detect = NULL,
+ .enable = enable_rgb,
+ .mode = {
+ .name = "Amp-WD",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 30000,
+ .left_margin = 30,
+ .right_margin = 30,
+ .upper_margin = 5,
+ .lower_margin = 5,
+ .hsync_len = 64,
+ .vsync_len = 20,
+ .sync = FB_SYNC_EXT,
+ .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();
+
+ /* Turn on LDB0,IPU,IPU DI0 clocks */
+ reg = __raw_readl(&mxc_ccm->CCGR3);
+ reg |= (MXC_CCM_CCGR3_LDB_DI0_MASK | 0xffff);
+ writel(reg, &mxc_ccm->CCGR3);
+
+ /* set LDB0, LDB1 clk select to 011/011 */
+ 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;
+ writel(reg, &mxc_ccm->cscmr2);
+
+ reg = readl(&mxc_ccm->chsccdr);
+ reg |= (CHSCCDR_CLK_SEL_LDB_DI0 <<
+ MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
+ writel(reg, &mxc_ccm->chsccdr);
+
+ reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES |
+ IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH |
+ 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_CH1_MODE_DISABLED |
+ IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
+ writel(reg, &iomux->gpr[2]);
+
+ reg = readl(&iomux->gpr[3]);
+ reg = (reg & ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK) |
+ (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 <<
+ IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
+ writel(reg, &iomux->gpr[3]);
+}
+#endif /* CONFIG_VIDEO_IPUV3 */
+
int board_early_init_f(void)
{
SETUP_IOMUX_PADS(uart4_pads);
@@ -105,6 +213,11 @@ int board_init(void)
#ifdef CONFIG_NAND_MXS
setup_gpmi_nand();
#endif
+
+#ifdef CONFIG_VIDEO_IPUV3
+ setup_display();
+#endif
+
return 0;
}

diff --git a/configs/imx6qdl_icore_mmc_defconfig b/configs/imx6qdl_icore_mmc_defconfig
index 31f40b4..6fa85de 100644
--- a/configs/imx6qdl_icore_mmc_defconfig
+++ b/configs/imx6qdl_icore_mmc_defconfig
@@ -33,6 +33,9 @@ CONFIG_MXC_UART=y
CONFIG_IMX_THERMAL=y
CONFIG_PINCTRL=y
CONFIG_PINCTRL_IMX6=y
+CONFIG_VIDEO=y
+CONFIG_VIDEO_IPUV3=y
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
CONFIG_SPL_LIBDISK_SUPPORT=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
diff --git a/configs/imx6qdl_icore_nand_defconfig b/configs/imx6qdl_icore_nand_defconfig
index 3410e4c..b32eea9 100644
--- a/configs/imx6qdl_icore_nand_defconfig
+++ b/configs/imx6qdl_icore_nand_defconfig
@@ -29,6 +29,9 @@ CONFIG_IMX_THERMAL=y
# CONFIG_DM_MMC_OPS is not set
CONFIG_PINCTRL=y
CONFIG_PINCTRL_IMX6=y
+CONFIG_VIDEO=y
+CONFIG_VIDEO_IPUV3=y
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
CONFIG_SPL_SERIAL_SUPPORT=y
diff --git a/include/configs/imx6qdl_icore.h b/include/configs/imx6qdl_icore.h
index f8a1263..70e74ba 100644
--- a/include/configs/imx6qdl_icore.h
+++ b/include/configs/imx6qdl_icore.h
@@ -149,6 +149,18 @@
# define CONFIG_PHY_SMSC
#endif

+/* Framebuffer */
+#ifdef CONFIG_VIDEO_IPUV3
+# define CONFIG_IPUV3_CLK 260000000
+# define CONFIG_IMX_VIDEO_SKIP
+
+# define CONFIG_SPLASH_SCREEN
+# define CONFIG_BMP_16BPP
+# define CONFIG_VIDEO_BMP_RLE8
+# define CONFIG_VIDEO_LOGO
+# define CONFIG_VIDEO_BMP_LOGO
+#endif
+
/* SPL */
#ifdef CONFIG_SPL
# ifdef CONFIG_NAND_MXS
--
1.9.1