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authorPardeep Kumar Singla <b45784@freescale.com>2013-07-25 12:12:13 -0500
committerStefano Babic <sbabic@denx.de>2013-07-27 10:49:36 +0200
commit5ea7f0e328c19542ce96d8242125b51b3dbca86b (patch)
tree1f80f394227a73e7760c48cf3cfefb5516cb1eba /arch/arm
parentf8b1e86d4707718e52cf6466845e463c358627ee (diff)
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mx6: Factor out common HDMI setup code
Instead of duplicating HDMI setup code for every mx6 board, factor out the common code Signed-off-by: Pardeep Kumar Singla <b45784@freescale.com> Acked-By: Eric Nelson <eric.nelson@boundarydevices.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/armv7/mx6/clock.c8
-rw-r--r--arch/arm/cpu/armv7/mx6/soc.c43
-rw-r--r--arch/arm/include/asm/arch-mx6/clock.h2
-rw-r--r--arch/arm/include/asm/arch-mx6/mxc_hdmi.h5
4 files changed, 57 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 3c0d908..ce063ae 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -468,6 +468,14 @@ int do_mx6_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
+void enable_ipu_clock(void)
+{
+ struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+ int reg;
+ reg = readl(&mxc_ccm->CCGR3);
+ reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET;
+ writel(reg, &mxc_ccm->CCGR3);
+}
/***************************************************/
U_BOOT_CMD(
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index fc436fb..a79369f 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -32,6 +32,8 @@
#include <asm/imx-common/boot_mode.h>
#include <asm/imx-common/dma.h>
#include <stdbool.h>
+#include <asm/arch/mxc_hdmi.h>
+#include <asm/arch/crm_regs.h>
struct scu_regs {
u32 ctrl;
@@ -228,3 +230,44 @@ const struct boot_mode soc_boot_modes[] = {
void s_init(void)
{
}
+
+#ifdef CONFIG_IMX_HDMI
+void imx_enable_hdmi_phy(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);
+}
+
+void imx_setup_hdmi(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 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);
+ 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_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
diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h
index cfd4edc..d03d24a 100644
--- a/arch/arm/include/asm/arch-mx6/clock.h
+++ b/arch/arm/include/asm/arch-mx6/clock.h
@@ -65,5 +65,5 @@ void enable_ocotp_clk(unsigned char enable);
void enable_usboh3_clk(unsigned char enable);
int enable_sata_clock(void);
int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
-
+void enable_ipu_clock(void);
#endif /* __ASM_ARCH_CLOCK_H */
diff --git a/arch/arm/include/asm/arch-mx6/mxc_hdmi.h b/arch/arm/include/asm/arch-mx6/mxc_hdmi.h
index 9dccb3f..5cd6aa6 100644
--- a/arch/arm/include/asm/arch-mx6/mxc_hdmi.h
+++ b/arch/arm/include/asm/arch-mx6/mxc_hdmi.h
@@ -21,6 +21,11 @@
#ifndef __MXC_HDMI_H__
#define __MXC_HDMI_H__
+#ifdef CONFIG_IMX_HDMI
+void imx_enable_hdmi_phy(void);
+void imx_setup_hdmi(void);
+#endif
+
/*
* Hdmi controller registers
*/