wandboard: Enable HDMI splashscreen
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/board/wandboard/wandboard.c b/board/wandboard/wandboard.c
index bb98352..5666cbf 100644
--- a/board/wandboard/wandboard.c
+++ b/board/wandboard/wandboard.c
@@ -10,9 +10,11 @@
*/
#include <asm/arch/clock.h>
+#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-pins.h>
+#include <asm/arch/mxc_hdmi.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
@@ -21,9 +23,11 @@
#include <asm/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>
DECLARE_GLOBAL_DATA_PTR;
@@ -206,6 +210,88 @@
return 0;
}
+#if defined(CONFIG_VIDEO_IPUV3)
+static void enable_hdmi(void)
+{
+ struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
+ u8 reg;
+ reg = readb(&hdmi->phy_conf0);
+ reg |= HDMI_PHY_CONF0_PDZ_MASK;
+ writeb(reg, &hdmi->phy_conf0);
+
+ udelay(3000);
+ reg |= HDMI_PHY_CONF0_ENTMDS_MASK;
+ writeb(reg, &hdmi->phy_conf0);
+ udelay(3000);
+ reg |= HDMI_PHY_CONF0_GEN2_TXPWRON_MASK;
+ writeb(reg, &hdmi->phy_conf0);
+ writeb(HDMI_MC_PHYRSTZ_ASSERT, &hdmi->mc_phyrstz);
+}
+
+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
+};
+
+int board_video_skip(void)
+{
+ int ret;
+
+ ret = ipuv3_fb_init(&hdmi, 0, IPU_PIX_FMT_RGB24);
+
+ if (ret)
+ printf("HDMI cannot be configured: %d\n", ret);
+
+ enable_hdmi();
+
+ return ret;
+}
+
+static void setup_display(void)
+{
+ struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+ struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
+ int reg;
+
+ /* Turn on IPU clock */
+ reg = readl(&mxc_ccm->CCGR3);
+ reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET;
+ writel(reg, &mxc_ccm->CCGR3);
+
+ /* Turn on HDMI PHY clock */
+ reg = readl(&mxc_ccm->CCGR2);
+ reg |= MXC_CCM_CCGR2_HDMI_TX_IAHBCLK_MASK
+ | MXC_CCM_CCGR2_HDMI_TX_ISFRCLK_MASK;
+ writel(reg, &mxc_ccm->CCGR2);
+
+ /* clear HDMI PHY reset */
+ writeb(HDMI_MC_PHYRSTZ_DEASSERT, &hdmi->mc_phyrstz);
+
+ reg = readl(&mxc_ccm->chsccdr);
+ reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK
+ | MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK
+ | MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
+ reg |= (CHSCCDR_CLK_SEL_LDB_DI0
+ << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET)
+ | (CHSCCDR_PODF_DIVIDE_BY_3
+ << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET)
+ | (CHSCCDR_IPU_PRE_CLK_540M_PFD
+ << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET);
+ writel(reg, &mxc_ccm->chsccdr);
+}
+#endif /* CONFIG_VIDEO_IPUV3 */
+
int board_eth_init(bd_t *bis)
{
int ret;
@@ -222,9 +308,21 @@
int board_early_init_f(void)
{
setup_iomux_uart();
+#if defined(CONFIG_VIDEO_IPUV3)
+ setup_display();
+#endif
return 0;
}
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+ return 1;
+}
+
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */