arch/arm/cpu/armv7/mx6/soc.c - filogic/uboot - Gitiles

 /*
  * (C) Copyright 2007
  * Sascha Hauer, Pengutronix
  *
  * (C) Copyright 2009 Freescale Semiconductor, Inc.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include <common.h>
 #include <asm/errno.h>
 #include <asm/io.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/sys_proto.h>
 #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>

 enum ldo_reg {
 	LDO_ARM,
 	LDO_SOC,
 	LDO_PU,
 };

 struct scu_regs {
 	u32	ctrl;
 	u32	config;
 	u32	status;
 	u32	invalidate;
 	u32	fpga_rev;
 };

 u32 get_cpu_rev(void)
 {
 	struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
 	u32 reg = readl(&anatop->digprog_sololite);
 	u32 type = ((reg >> 16) & 0xff);

 	if (type != MXC_CPU_MX6SL) {
 		reg = readl(&anatop->digprog);
 		type = ((reg >> 16) & 0xff);
 		if (type == MXC_CPU_MX6DL) {
 			struct scu_regs *scu = (struct scu_regs *)SCU_BASE_ADDR;
 			u32 cfg = readl(&scu->config) & 3;

 			if (!cfg)
 				type = MXC_CPU_MX6SOLO;
 		}
 	}
 	reg &= 0xff;		/* mx6 silicon revision */
 	return (type << 12) | (reg + 0x10);
 }

 #ifdef CONFIG_REVISION_TAG
 u32 __weak get_board_rev(void)
 {
 	u32 cpurev = get_cpu_rev();
 	u32 type = ((cpurev >> 12) & 0xff);
 	if (type == MXC_CPU_MX6SOLO)
 		cpurev = (MXC_CPU_MX6DL) << 12 | (cpurev & 0xFFF);

 	return cpurev;
 }
 #endif

 void init_aips(void)
 {
 	struct aipstz_regs *aips1, *aips2;

 	aips1 = (struct aipstz_regs *)AIPS1_BASE_ADDR;
 	aips2 = (struct aipstz_regs *)AIPS2_BASE_ADDR;

 	/*
 	 * Set all MPROTx to be non-bufferable, trusted for R/W,
 	 * not forced to user-mode.
 	 */
 	writel(0x77777777, &aips1->mprot0);
 	writel(0x77777777, &aips1->mprot1);
 	writel(0x77777777, &aips2->mprot0);
 	writel(0x77777777, &aips2->mprot1);

 	/*
 	 * Set all OPACRx to be non-bufferable, not require
 	 * supervisor privilege level for access,allow for
 	 * write access and untrusted master access.
 	 */
 	writel(0x00000000, &aips1->opacr0);
 	writel(0x00000000, &aips1->opacr1);
 	writel(0x00000000, &aips1->opacr2);
 	writel(0x00000000, &aips1->opacr3);
 	writel(0x00000000, &aips1->opacr4);
 	writel(0x00000000, &aips2->opacr0);
 	writel(0x00000000, &aips2->opacr1);
 	writel(0x00000000, &aips2->opacr2);
 	writel(0x00000000, &aips2->opacr3);
 	writel(0x00000000, &aips2->opacr4);
 }

 static void clear_ldo_ramp(void)
 {
 	struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
 	int reg;

 	/* ROM may modify LDO ramp up time according to fuse setting, so in
 	 * order to be in the safe side we neeed to reset these settings to
 	 * match the reset value: 0'b00
 	 */
 	reg = readl(&anatop->ana_misc2);
 	reg &= ~(0x3f << 24);
 	writel(reg, &anatop->ana_misc2);
 }

 /*
  * Set the VDDSOC
  *
  * Mask out the REG_CORE[22:18] bits (REG2_TRIG) and set
  * them to the specified millivolt level.
  * Possible values are from 0.725V to 1.450V in steps of
  * 0.025V (25mV).
  */
 static int set_ldo_voltage(enum ldo_reg ldo, u32 mv)
 {
 	struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
 	u32 val, step, old, reg = readl(&anatop->reg_core);
 	u8 shift;

 	if (mv < 725)
 		val = 0x00;	/* Power gated off */
 	else if (mv > 1450)
 		val = 0x1F;	/* Power FET switched full on. No regulation */
 	else
 		val = (mv - 700) / 25;

 	clear_ldo_ramp();

 	switch (ldo) {
 	case LDO_SOC:
 		shift = 18;
 		break;
 	case LDO_PU:
 		shift = 9;
 		break;
 	case LDO_ARM:
 		shift = 0;
 		break;
 	default:
 		return -EINVAL;
 	}

 	old = (reg & (0x1F << shift)) >> shift;
 	step = abs(val - old);
 	if (step == 0)
 		return 0;

 	reg = (reg & ~(0x1F << shift)) | (val << shift);
 	writel(reg, &anatop->reg_core);

 	/*
 	 * The LDO ramp-up is based on 64 clock cycles of 24 MHz = 2.6 us per
 	 * step
 	 */
 	udelay(3 * step);

 	return 0;
 }

 static void imx_set_wdog_powerdown(bool enable)
 {
 	struct wdog_regs *wdog1 = (struct wdog_regs *)WDOG1_BASE_ADDR;
 	struct wdog_regs *wdog2 = (struct wdog_regs *)WDOG2_BASE_ADDR;

 	/* Write to the PDE (Power Down Enable) bit */
 	writew(enable, &wdog1->wmcr);
 	writew(enable, &wdog2->wmcr);
 }

 int arch_cpu_init(void)
 {
 	init_aips();

 	imx_set_wdog_powerdown(false); /* Disable PDE bit of WMCR register */

 #ifdef CONFIG_APBH_DMA
 	/* Start APBH DMA */
 	mxs_dma_init();
 #endif

 	return 0;
 }

 int board_postclk_init(void)
 {
 	set_ldo_voltage(LDO_SOC, 1175);	/* Set VDDSOC to 1.175V */

 	return 0;
 }

 #ifndef CONFIG_SYS_DCACHE_OFF
 void enable_caches(void)
 {
 	/* Avoid random hang when download by usb */
 	invalidate_dcache_all();
 	/* Enable D-cache. I-cache is already enabled in start.S */
 	dcache_enable();
 }
 #endif

 #if defined(CONFIG_FEC_MXC)
 void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
 {
 	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
 	struct fuse_bank *bank = &ocotp->bank[4];
 	struct fuse_bank4_regs *fuse =
 			(struct fuse_bank4_regs *)bank->fuse_regs;

 	u32 value = readl(&fuse->mac_addr_high);
 	mac[0] = (value >> 8);
 	mac[1] = value ;

 	value = readl(&fuse->mac_addr_low);
 	mac[2] = value >> 24 ;
 	mac[3] = value >> 16 ;
 	mac[4] = value >> 8 ;
 	mac[5] = value ;

 }
 #endif

 void boot_mode_apply(unsigned cfg_val)
 {
 	unsigned reg;
 	struct src *psrc = (struct src *)SRC_BASE_ADDR;
 	writel(cfg_val, &psrc->gpr9);
 	reg = readl(&psrc->gpr10);
 	if (cfg_val)
 		reg |= 1 << 28;
 	else
 		reg &= ~(1 << 28);
 	writel(reg, &psrc->gpr10);
 }
 /*
  * cfg_val will be used for
  * Boot_cfg4[7:0]:Boot_cfg3[7:0]:Boot_cfg2[7:0]:Boot_cfg1[7:0]
  * After reset, if GPR10[28] is 1, ROM will copy GPR9[25:0]
  * to SBMR1, which will determine the boot device.
  */
 const struct boot_mode soc_boot_modes[] = {
 	{"normal",	MAKE_CFGVAL(0x00, 0x00, 0x00, 0x00)},
 	/* reserved value should start rom usb */
 	{"usb",		MAKE_CFGVAL(0x01, 0x00, 0x00, 0x00)},
 	{"sata",	MAKE_CFGVAL(0x20, 0x00, 0x00, 0x00)},
 	{"escpi1:0",	MAKE_CFGVAL(0x30, 0x00, 0x00, 0x08)},
 	{"escpi1:1",	MAKE_CFGVAL(0x30, 0x00, 0x00, 0x18)},
 	{"escpi1:2",	MAKE_CFGVAL(0x30, 0x00, 0x00, 0x28)},
 	{"escpi1:3",	MAKE_CFGVAL(0x30, 0x00, 0x00, 0x38)},
 	/* 4 bit bus width */
 	{"esdhc1",	MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
 	{"esdhc2",	MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
 	{"esdhc3",	MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
 	{"esdhc4",	MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
 	{NULL,		0},
 };

 void s_init(void)
 {
 	struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
 	int is_6q = is_cpu_type(MXC_CPU_MX6Q);
 	u32 mask480;
 	u32 mask528;

 	/* Due to hardware limitation, on MX6Q we need to gate/ungate all PFDs
 	 * to make sure PFD is working right, otherwise, PFDs may
 	 * not output clock after reset, MX6DL and MX6SL have added 396M pfd
 	 * workaround in ROM code, as bus clock need it
 	 */

 	mask480 = ANATOP_PFD_CLKGATE_MASK(0) |
 		ANATOP_PFD_CLKGATE_MASK(1) |
 		ANATOP_PFD_CLKGATE_MASK(2) |
 		ANATOP_PFD_CLKGATE_MASK(3);
 	mask528 = ANATOP_PFD_CLKGATE_MASK(0) |
 		ANATOP_PFD_CLKGATE_MASK(1) |
 		ANATOP_PFD_CLKGATE_MASK(3);

 	/*
 	 * Don't reset PFD2 on DL/S
 	 */
 	if (is_6q)
 		mask528 |= ANATOP_PFD_CLKGATE_MASK(2);
 	writel(mask480, &anatop->pfd_480_set);
 	writel(mask528, &anatop->pfd_528_set);
 	writel(mask480, &anatop->pfd_480_clr);
 	writel(mask528, &anatop->pfd_528_clr);
 }

 #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
	/*
	* (C) Copyright 2007
	* Sascha Hauer, Pengutronix
	*
	* (C) Copyright 2009 Freescale Semiconductor, Inc.
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <common.h>
	#include <asm/errno.h>
	#include <asm/io.h>
	#include <asm/arch/imx-regs.h>
	#include <asm/arch/clock.h>
	#include <asm/arch/sys_proto.h>
	#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>

	enum ldo_reg {
	LDO_ARM,
	LDO_SOC,
	LDO_PU,
	};

	struct scu_regs {
	u32 ctrl;
	u32 config;
	u32 status;
	u32 invalidate;
	u32 fpga_rev;
	};

	u32 get_cpu_rev(void)
	{
	struct anatop_regs anatop = (struct anatop_regs )ANATOP_BASE_ADDR;
	u32 reg = readl(&anatop->digprog_sololite);
	u32 type = ((reg >> 16) & 0xff);

	if (type != MXC_CPU_MX6SL) {
	reg = readl(&anatop->digprog);
	type = ((reg >> 16) & 0xff);
	if (type == MXC_CPU_MX6DL) {
	struct scu_regs scu = (struct scu_regs )SCU_BASE_ADDR;
	u32 cfg = readl(&scu->config) & 3;

	if (!cfg)
	type = MXC_CPU_MX6SOLO;
	}
	}
	reg &= 0xff; /* mx6 silicon revision */
	return (type << 12) \| (reg + 0x10);
	}

	#ifdef CONFIG_REVISION_TAG
	u32 __weak get_board_rev(void)
	{
	u32 cpurev = get_cpu_rev();
	u32 type = ((cpurev >> 12) & 0xff);
	if (type == MXC_CPU_MX6SOLO)
	cpurev = (MXC_CPU_MX6DL) << 12 \| (cpurev & 0xFFF);

	return cpurev;
	}
	#endif

	void init_aips(void)
	{
	struct aipstz_regs aips1, aips2;

	aips1 = (struct aipstz_regs *)AIPS1_BASE_ADDR;
	aips2 = (struct aipstz_regs *)AIPS2_BASE_ADDR;

	/*
	* Set all MPROTx to be non-bufferable, trusted for R/W,
	* not forced to user-mode.
	*/
	writel(0x77777777, &aips1->mprot0);
	writel(0x77777777, &aips1->mprot1);
	writel(0x77777777, &aips2->mprot0);
	writel(0x77777777, &aips2->mprot1);

	/*
	* Set all OPACRx to be non-bufferable, not require
	* supervisor privilege level for access,allow for
	* write access and untrusted master access.
	*/
	writel(0x00000000, &aips1->opacr0);
	writel(0x00000000, &aips1->opacr1);
	writel(0x00000000, &aips1->opacr2);
	writel(0x00000000, &aips1->opacr3);
	writel(0x00000000, &aips1->opacr4);
	writel(0x00000000, &aips2->opacr0);
	writel(0x00000000, &aips2->opacr1);
	writel(0x00000000, &aips2->opacr2);
	writel(0x00000000, &aips2->opacr3);
	writel(0x00000000, &aips2->opacr4);
	}

	static void clear_ldo_ramp(void)
	{
	struct anatop_regs anatop = (struct anatop_regs )ANATOP_BASE_ADDR;
	int reg;

	/* ROM may modify LDO ramp up time according to fuse setting, so in
	* order to be in the safe side we neeed to reset these settings to
	* match the reset value: 0'b00
	*/
	reg = readl(&anatop->ana_misc2);
	reg &= ~(0x3f << 24);
	writel(reg, &anatop->ana_misc2);
	}

	/*
	* Set the VDDSOC
	*
	* Mask out the REG_CORE[22:18] bits (REG2_TRIG) and set
	* them to the specified millivolt level.
	* Possible values are from 0.725V to 1.450V in steps of
	* 0.025V (25mV).
	*/
	static int set_ldo_voltage(enum ldo_reg ldo, u32 mv)
	{
	struct anatop_regs anatop = (struct anatop_regs )ANATOP_BASE_ADDR;
	u32 val, step, old, reg = readl(&anatop->reg_core);
	u8 shift;

	if (mv < 725)
	val = 0x00; /* Power gated off */
	else if (mv > 1450)
	val = 0x1F; /* Power FET switched full on. No regulation */
	else
	val = (mv - 700) / 25;

	clear_ldo_ramp();

	switch (ldo) {
	case LDO_SOC:
	shift = 18;
	break;
	case LDO_PU:
	shift = 9;
	break;
	case LDO_ARM:
	shift = 0;
	break;
	default:
	return -EINVAL;
	}

	old = (reg & (0x1F << shift)) >> shift;
	step = abs(val - old);
	if (step == 0)
	return 0;

	reg = (reg & ~(0x1F << shift)) \| (val << shift);
	writel(reg, &anatop->reg_core);

	/*
	* The LDO ramp-up is based on 64 clock cycles of 24 MHz = 2.6 us per
	* step
	*/
	udelay(3 * step);

	return 0;
	}

	static void imx_set_wdog_powerdown(bool enable)
	{
	struct wdog_regs wdog1 = (struct wdog_regs )WDOG1_BASE_ADDR;
	struct wdog_regs wdog2 = (struct wdog_regs )WDOG2_BASE_ADDR;

	/* Write to the PDE (Power Down Enable) bit */
	writew(enable, &wdog1->wmcr);
	writew(enable, &wdog2->wmcr);
	}

	int arch_cpu_init(void)
	{
	init_aips();

	imx_set_wdog_powerdown(false); /* Disable PDE bit of WMCR register */

	#ifdef CONFIG_APBH_DMA
	/* Start APBH DMA */
	mxs_dma_init();
	#endif

	return 0;
	}

	int board_postclk_init(void)
	{
	set_ldo_voltage(LDO_SOC, 1175); /* Set VDDSOC to 1.175V */

	return 0;
	}

	#ifndef CONFIG_SYS_DCACHE_OFF
	void enable_caches(void)
	{
	/* Avoid random hang when download by usb */
	invalidate_dcache_all();
	/* Enable D-cache. I-cache is already enabled in start.S */
	dcache_enable();
	}
	#endif

	#if defined(CONFIG_FEC_MXC)
	void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
	{
	struct ocotp_regs ocotp = (struct ocotp_regs )OCOTP_BASE_ADDR;
	struct fuse_bank *bank = &ocotp->bank[4];
	struct fuse_bank4_regs *fuse =
	(struct fuse_bank4_regs *)bank->fuse_regs;

	u32 value = readl(&fuse->mac_addr_high);
	mac[0] = (value >> 8);
	mac[1] = value ;

	value = readl(&fuse->mac_addr_low);
	mac[2] = value >> 24 ;
	mac[3] = value >> 16 ;
	mac[4] = value >> 8 ;
	mac[5] = value ;

	}
	#endif

	void boot_mode_apply(unsigned cfg_val)
	{
	unsigned reg;
	struct src psrc = (struct src )SRC_BASE_ADDR;
	writel(cfg_val, &psrc->gpr9);
	reg = readl(&psrc->gpr10);
	if (cfg_val)
	reg \|= 1 << 28;
	else
	reg &= ~(1 << 28);
	writel(reg, &psrc->gpr10);
	}
	/*
	* cfg_val will be used for
	* Boot_cfg4[7:0]:Boot_cfg3[7:0]:Boot_cfg2[7:0]:Boot_cfg1[7:0]
	* After reset, if GPR10[28] is 1, ROM will copy GPR9[25:0]
	* to SBMR1, which will determine the boot device.
	*/
	const struct boot_mode soc_boot_modes[] = {
	{"normal", MAKE_CFGVAL(0x00, 0x00, 0x00, 0x00)},
	/* reserved value should start rom usb */
	{"usb", MAKE_CFGVAL(0x01, 0x00, 0x00, 0x00)},
	{"sata", MAKE_CFGVAL(0x20, 0x00, 0x00, 0x00)},
	{"escpi1:0", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x08)},
	{"escpi1:1", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x18)},
	{"escpi1:2", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x28)},
	{"escpi1:3", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x38)},
	/* 4 bit bus width */
	{"esdhc1", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
	{"esdhc2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
	{"esdhc3", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
	{"esdhc4", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
	{NULL, 0},
	};

	void s_init(void)
	{
	struct anatop_regs anatop = (struct anatop_regs )ANATOP_BASE_ADDR;
	int is_6q = is_cpu_type(MXC_CPU_MX6Q);
	u32 mask480;
	u32 mask528;

	/* Due to hardware limitation, on MX6Q we need to gate/ungate all PFDs
	* to make sure PFD is working right, otherwise, PFDs may
	* not output clock after reset, MX6DL and MX6SL have added 396M pfd
	* workaround in ROM code, as bus clock need it
	*/

	mask480 = ANATOP_PFD_CLKGATE_MASK(0) \|
	ANATOP_PFD_CLKGATE_MASK(1) \|
	ANATOP_PFD_CLKGATE_MASK(2) \|
	ANATOP_PFD_CLKGATE_MASK(3);
	mask528 = ANATOP_PFD_CLKGATE_MASK(0) \|
	ANATOP_PFD_CLKGATE_MASK(1) \|
	ANATOP_PFD_CLKGATE_MASK(3);

	/*
	* Don't reset PFD2 on DL/S
	*/
	if (is_6q)
	mask528 \|= ANATOP_PFD_CLKGATE_MASK(2);
	writel(mask480, &anatop->pfd_480_set);
	writel(mask528, &anatop->pfd_528_set);
	writel(mask480, &anatop->pfd_480_clr);
	writel(mask528, &anatop->pfd_528_clr);
	}

	#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