cgtqmx6eval: Add splash screen support
Add LVDS and HDMI support.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/board/congatec/cgtqmx6eval/cgtqmx6eval.c b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
index 3987b74..e0d8d34 100644
--- a/board/congatec/cgtqmx6eval/cgtqmx6eval.c
+++ b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
@@ -17,11 +17,15 @@
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/imx-common/mxc_i2c.h>
+#include <asm/arch/mxc_hdmi.h>
+#include <asm/arch/crm_regs.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <i2c.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -263,9 +267,178 @@
return 0;
}
+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;
+
+ clrbits_le32(&iomux->gpr[2], IOMUXC_GPR2_LVDS_CH0_MODE_MASK |
+ IOMUXC_GPR2_LVDS_CH1_MODE_MASK);
+}
+
+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 = 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 } }
+};
+
+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;
+}
+
+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();
+ imx_setup_hdmi();
+
+ /* Turn on LDB0, LDB1, IPU,IPU DI0 clocks */
+ setbits_le32(&mxc_ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK |
+ MXC_CCM_CCGR3_LDB_DI1_MASK);
+
+ /* 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);
+
+ setbits_le32(&mxc_ccm->cscmr2, MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV |
+ MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV);
+
+ setbits_le32(&mxc_ccm->chsccdr, CHSCCDR_CLK_SEL_LDB_DI0 <<
+ MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET |
+ CHSCCDR_CLK_SEL_LDB_DI0 <<
+ MXC_CCM_CHSCCDR_IPU1_DI1_CLK_SEL_OFFSET);
+
+ reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
+ | 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_DISABLED
+ | IOMUXC_GPR2_LVDS_CH1_MODE_ENABLED_DI0;
+ writel(reg, &iomux->gpr[2]);
+
+ reg = readl(&iomux->gpr[3]);
+ reg = (reg & ~(IOMUXC_GPR3_LVDS1_MUX_CTL_MASK |
+ IOMUXC_GPR3_HDMI_MUX_CTL_MASK)) |
+ (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 <<
+ IOMUXC_GPR3_LVDS1_MUX_CTL_OFFSET);
+ writel(reg, &iomux->gpr[3]);
+}
+
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+ return 1;
+}
+
int board_early_init_f(void)
{
setup_iomux_uart();
+ setup_display();
return 0;
}