diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/wandboard/wandboard.c | 98 |
1 files changed, 98 insertions, 0 deletions
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 @@ int board_phy_config(struct phy_device *phydev) 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_eth_init(bd_t *bis) 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 */ |