[deliverable/linux.git] / arch / arm / mach-omap2 / cm2xxx_3xxx.c

/*
 * OMAP2/3 CM module functions
 *
 * Copyright (C) 2009 Nokia Corporation
 * Paul Walmsley
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/io.h>

#include <plat/hardware.h>

#include "iomap.h"
#include "common.h"
#include "cm.h"
#include "cm2xxx_3xxx.h"
#include "cm-regbits-24xx.h"
#include "cm-regbits-34xx.h"

/* CM_AUTOIDLE_PLL.AUTO_* bit values for DPLLs */
#define DPLL_AUTOIDLE_DISABLE				0x0
#define OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP		0x3

/* CM_AUTOIDLE_PLL.AUTO_* bit values for APLLs (OMAP2xxx only) */
#define OMAP2XXX_APLL_AUTOIDLE_DISABLE			0x0
#define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP		0x3

static const u8 cm_idlest_offs[] = {
	CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3
};

u32 omap2_cm_read_mod_reg(s16 module, u16 idx)
{
	return __raw_readl(cm_base + module + idx);
}

void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx)
{
	__raw_writel(val, cm_base + module + idx);
}

/* Read-modify-write a register in a CM module. Caller must lock */
u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
{
	u32 v;

	v = omap2_cm_read_mod_reg(module, idx);
	v &= ~mask;
	v |= bits;
	omap2_cm_write_mod_reg(v, module, idx);

	return v;
}

u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
{
	return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx);
}

u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
{
	return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
}

/*
 *
 */

static void _write_clktrctrl(u8 c, s16 module, u32 mask)
{
	u32 v;

	v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
	v &= ~mask;
	v |= c << __ffs(mask);
	omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL);
}

bool omap2_cm_is_clkdm_in_hwsup(s16 module, u32 mask)
{
	u32 v;
	bool ret = 0;

	BUG_ON(!cpu_is_omap24xx() && !cpu_is_omap34xx());

	v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
	v &= mask;
	v >>= __ffs(mask);

	if (cpu_is_omap24xx())
		ret = (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
	else
		ret = (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;

	return ret;
}

void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
{
	_write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
}

void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
{
	_write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
}

void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
{
	_write_clktrctrl(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
}

void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
{
	_write_clktrctrl(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
}

void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask)
{
	_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, module, mask);
}

void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask)
{
	_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, module, mask);
}

/*
 * DPLL autoidle control
 */

static void _omap2xxx_set_dpll_autoidle(u8 m)
{
	u32 v;

	v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
	v &= ~OMAP24XX_AUTO_DPLL_MASK;
	v |= m << OMAP24XX_AUTO_DPLL_SHIFT;
	omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE);
}

void omap2xxx_cm_set_dpll_disable_autoidle(void)
{
	_omap2xxx_set_dpll_autoidle(OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP);
}

void omap2xxx_cm_set_dpll_auto_low_power_stop(void)
{
	_omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE);
}

/*
 * APLL autoidle control
 */

static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask)
{
	u32 v;

	v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
	v &= ~mask;
	v |= m << __ffs(mask);
	omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE);
}

void omap2xxx_cm_set_apll54_disable_autoidle(void)
{
	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
				    OMAP24XX_AUTO_54M_MASK);
}

void omap2xxx_cm_set_apll54_auto_low_power_stop(void)
{
	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
				    OMAP24XX_AUTO_54M_MASK);
}

void omap2xxx_cm_set_apll96_disable_autoidle(void)
{
	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
				    OMAP24XX_AUTO_96M_MASK);
}

void omap2xxx_cm_set_apll96_auto_low_power_stop(void)
{
	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
				    OMAP24XX_AUTO_96M_MASK);
}

/*
 *
 */

/**
 * omap2_cm_wait_idlest_ready - wait for a module to leave idle or standby
 * @prcm_mod: PRCM module offset
 * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3)
 * @idlest_shift: shift of the bit in the CM_IDLEST* register to check
 *
 * XXX document
 */
int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
{
	int ena = 0, i = 0;
	u8 cm_idlest_reg;
	u32 mask;

	if (!idlest_id || (idlest_id > ARRAY_SIZE(cm_idlest_offs)))
		return -EINVAL;

	cm_idlest_reg = cm_idlest_offs[idlest_id - 1];

	mask = 1 << idlest_shift;

	if (cpu_is_omap24xx())
		ena = mask;
	else if (cpu_is_omap34xx())
		ena = 0;
	else
		BUG();

	omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & mask) == ena),
			  MAX_MODULE_READY_TIME, i);

	return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
}

/*
 * Context save/restore code - OMAP3 only
 */
#ifdef CONFIG_ARCH_OMAP3
struct omap3_cm_regs {
	u32 iva2_cm_clksel1;
	u32 iva2_cm_clksel2;
	u32 cm_sysconfig;
	u32 sgx_cm_clksel;
	u32 dss_cm_clksel;
	u32 cam_cm_clksel;
	u32 per_cm_clksel;
	u32 emu_cm_clksel;
	u32 emu_cm_clkstctrl;
	u32 pll_cm_autoidle;
	u32 pll_cm_autoidle2;
	u32 pll_cm_clksel4;
	u32 pll_cm_clksel5;
	u32 pll_cm_clken2;
	u32 cm_polctrl;
	u32 iva2_cm_fclken;
	u32 iva2_cm_clken_pll;
	u32 core_cm_fclken1;
	u32 core_cm_fclken3;
	u32 sgx_cm_fclken;
	u32 wkup_cm_fclken;
	u32 dss_cm_fclken;
	u32 cam_cm_fclken;
	u32 per_cm_fclken;
	u32 usbhost_cm_fclken;
	u32 core_cm_iclken1;
	u32 core_cm_iclken2;
	u32 core_cm_iclken3;
	u32 sgx_cm_iclken;
	u32 wkup_cm_iclken;
	u32 dss_cm_iclken;
	u32 cam_cm_iclken;
	u32 per_cm_iclken;
	u32 usbhost_cm_iclken;
	u32 iva2_cm_autoidle2;
	u32 mpu_cm_autoidle2;
	u32 iva2_cm_clkstctrl;
	u32 mpu_cm_clkstctrl;
	u32 core_cm_clkstctrl;
	u32 sgx_cm_clkstctrl;
	u32 dss_cm_clkstctrl;
	u32 cam_cm_clkstctrl;
	u32 per_cm_clkstctrl;
	u32 neon_cm_clkstctrl;
	u32 usbhost_cm_clkstctrl;
	u32 core_cm_autoidle1;
	u32 core_cm_autoidle2;
	u32 core_cm_autoidle3;
	u32 wkup_cm_autoidle;
	u32 dss_cm_autoidle;
	u32 cam_cm_autoidle;
	u32 per_cm_autoidle;
	u32 usbhost_cm_autoidle;
	u32 sgx_cm_sleepdep;
	u32 dss_cm_sleepdep;
	u32 cam_cm_sleepdep;
	u32 per_cm_sleepdep;
	u32 usbhost_cm_sleepdep;
	u32 cm_clkout_ctrl;
};

static struct omap3_cm_regs cm_context;

void omap3_cm_save_context(void)
{
	cm_context.iva2_cm_clksel1 =
		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
	cm_context.iva2_cm_clksel2 =
		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2);
	cm_context.cm_sysconfig = __raw_readl(OMAP3430_CM_SYSCONFIG);
	cm_context.sgx_cm_clksel =
		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL);
	cm_context.dss_cm_clksel =
		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL);
	cm_context.cam_cm_clksel =
		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL);
	cm_context.per_cm_clksel =
		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL);
	cm_context.emu_cm_clksel =
		omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
	cm_context.emu_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
	/*
	 * As per erratum i671, ROM code does not respect the PER DPLL
	 * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
	 * In this case, even though this register has been saved in
	 * scratchpad contents, we need to restore AUTO_PERIPH_DPLL
	 * by ourselves. So, we need to save it anyway.
	 */
	cm_context.pll_cm_autoidle =
		omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
	cm_context.pll_cm_autoidle2 =
		omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
	cm_context.pll_cm_clksel4 =
		omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4);
	cm_context.pll_cm_clksel5 =
		omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5);
	cm_context.pll_cm_clken2 =
		omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2);
	cm_context.cm_polctrl = __raw_readl(OMAP3430_CM_POLCTRL);
	cm_context.iva2_cm_fclken =
		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN);
	cm_context.iva2_cm_clken_pll =
		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKEN_PLL);
	cm_context.core_cm_fclken1 =
		omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
	cm_context.core_cm_fclken3 =
		omap2_cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3);
	cm_context.sgx_cm_fclken =
		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN);
	cm_context.wkup_cm_fclken =
		omap2_cm_read_mod_reg(WKUP_MOD, CM_FCLKEN);
	cm_context.dss_cm_fclken =
		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN);
	cm_context.cam_cm_fclken =
		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN);
	cm_context.per_cm_fclken =
		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN);
	cm_context.usbhost_cm_fclken =
		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
	cm_context.core_cm_iclken1 =
		omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN1);
	cm_context.core_cm_iclken2 =
		omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN2);
	cm_context.core_cm_iclken3 =
		omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN3);
	cm_context.sgx_cm_iclken =
		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN);
	cm_context.wkup_cm_iclken =
		omap2_cm_read_mod_reg(WKUP_MOD, CM_ICLKEN);
	cm_context.dss_cm_iclken =
		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN);
	cm_context.cam_cm_iclken =
		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN);
	cm_context.per_cm_iclken =
		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN);
	cm_context.usbhost_cm_iclken =
		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
	cm_context.iva2_cm_autoidle2 =
		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
	cm_context.mpu_cm_autoidle2 =
		omap2_cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
	cm_context.iva2_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.mpu_cm_clkstctrl =
		omap2_cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.core_cm_clkstctrl =
		omap2_cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.sgx_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.dss_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.cam_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.per_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.neon_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
	cm_context.usbhost_cm_clkstctrl =
		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
				      OMAP2_CM_CLKSTCTRL);
	cm_context.core_cm_autoidle1 =
		omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
	cm_context.core_cm_autoidle2 =
		omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2);
	cm_context.core_cm_autoidle3 =
		omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3);
	cm_context.wkup_cm_autoidle =
		omap2_cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE);
	cm_context.dss_cm_autoidle =
		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE);
	cm_context.cam_cm_autoidle =
		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE);
	cm_context.per_cm_autoidle =
		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE);
	cm_context.usbhost_cm_autoidle =
		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
	cm_context.sgx_cm_sleepdep =
		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
				      OMAP3430_CM_SLEEPDEP);
	cm_context.dss_cm_sleepdep =
		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP);
	cm_context.cam_cm_sleepdep =
		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP);
	cm_context.per_cm_sleepdep =
		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP);
	cm_context.usbhost_cm_sleepdep =
		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
				      OMAP3430_CM_SLEEPDEP);
	cm_context.cm_clkout_ctrl =
		omap2_cm_read_mod_reg(OMAP3430_CCR_MOD,
				      OMAP3_CM_CLKOUT_CTRL_OFFSET);
}

void omap3_cm_restore_context(void)
{
	omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD,
			       CM_CLKSEL1);
	omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD,
			       CM_CLKSEL2);
	__raw_writel(cm_context.cm_sysconfig, OMAP3430_CM_SYSCONFIG);
	omap2_cm_write_mod_reg(cm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD,
			       CM_CLKSEL);
	omap2_cm_write_mod_reg(cm_context.dss_cm_clksel, OMAP3430_DSS_MOD,
			       CM_CLKSEL);
	omap2_cm_write_mod_reg(cm_context.cam_cm_clksel, OMAP3430_CAM_MOD,
			       CM_CLKSEL);
	omap2_cm_write_mod_reg(cm_context.per_cm_clksel, OMAP3430_PER_MOD,
			       CM_CLKSEL);
	omap2_cm_write_mod_reg(cm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
			       CM_CLKSEL1);
	omap2_cm_write_mod_reg(cm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
			       OMAP2_CM_CLKSTCTRL);
	/*
	 * As per erratum i671, ROM code does not respect the PER DPLL
	 * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
	 * In this case, we need to restore AUTO_PERIPH_DPLL by ourselves.
	 */
	omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle, PLL_MOD,
			       CM_AUTOIDLE);
	omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle2, PLL_MOD,
			       CM_AUTOIDLE2);
	omap2_cm_write_mod_reg(cm_context.pll_cm_clksel4, PLL_MOD,
			       OMAP3430ES2_CM_CLKSEL4);
	omap2_cm_write_mod_reg(cm_context.pll_cm_clksel5, PLL_MOD,
			       OMAP3430ES2_CM_CLKSEL5);
	omap2_cm_write_mod_reg(cm_context.pll_cm_clken2, PLL_MOD,
			       OMAP3430ES2_CM_CLKEN2);
	__raw_writel(cm_context.cm_polctrl, OMAP3430_CM_POLCTRL);
	omap2_cm_write_mod_reg(cm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD,
			       CM_FCLKEN);
	omap2_cm_write_mod_reg(cm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD,
			       OMAP3430_CM_CLKEN_PLL);
	omap2_cm_write_mod_reg(cm_context.core_cm_fclken1, CORE_MOD,
			       CM_FCLKEN1);
	omap2_cm_write_mod_reg(cm_context.core_cm_fclken3, CORE_MOD,
			       OMAP3430ES2_CM_FCLKEN3);
	omap2_cm_write_mod_reg(cm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD,
			       CM_FCLKEN);
	omap2_cm_write_mod_reg(cm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN);
	omap2_cm_write_mod_reg(cm_context.dss_cm_fclken, OMAP3430_DSS_MOD,
			       CM_FCLKEN);
	omap2_cm_write_mod_reg(cm_context.cam_cm_fclken, OMAP3430_CAM_MOD,
			       CM_FCLKEN);
	omap2_cm_write_mod_reg(cm_context.per_cm_fclken, OMAP3430_PER_MOD,
			       CM_FCLKEN);
	omap2_cm_write_mod_reg(cm_context.usbhost_cm_fclken,
			       OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
	omap2_cm_write_mod_reg(cm_context.core_cm_iclken1, CORE_MOD,
			       CM_ICLKEN1);
	omap2_cm_write_mod_reg(cm_context.core_cm_iclken2, CORE_MOD,
			       CM_ICLKEN2);
	omap2_cm_write_mod_reg(cm_context.core_cm_iclken3, CORE_MOD,
			       CM_ICLKEN3);
	omap2_cm_write_mod_reg(cm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD,
			       CM_ICLKEN);
	omap2_cm_write_mod_reg(cm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN);
	omap2_cm_write_mod_reg(cm_context.dss_cm_iclken, OMAP3430_DSS_MOD,
			       CM_ICLKEN);
	omap2_cm_write_mod_reg(cm_context.cam_cm_iclken, OMAP3430_CAM_MOD,
			       CM_ICLKEN);
	omap2_cm_write_mod_reg(cm_context.per_cm_iclken, OMAP3430_PER_MOD,
			       CM_ICLKEN);
	omap2_cm_write_mod_reg(cm_context.usbhost_cm_iclken,
			       OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
	omap2_cm_write_mod_reg(cm_context.iva2_cm_autoidle2, OMAP3430_IVA2_MOD,
			       CM_AUTOIDLE2);
	omap2_cm_write_mod_reg(cm_context.mpu_cm_autoidle2, MPU_MOD,
			       CM_AUTOIDLE2);
	omap2_cm_write_mod_reg(cm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.mpu_cm_clkstctrl, MPU_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.core_cm_clkstctrl, CORE_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
			       OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.usbhost_cm_clkstctrl,
			       OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle1, CORE_MOD,
			       CM_AUTOIDLE1);
	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle2, CORE_MOD,
			       CM_AUTOIDLE2);
	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle3, CORE_MOD,
			       CM_AUTOIDLE3);
	omap2_cm_write_mod_reg(cm_context.wkup_cm_autoidle, WKUP_MOD,
			       CM_AUTOIDLE);
	omap2_cm_write_mod_reg(cm_context.dss_cm_autoidle, OMAP3430_DSS_MOD,
			       CM_AUTOIDLE);
	omap2_cm_write_mod_reg(cm_context.cam_cm_autoidle, OMAP3430_CAM_MOD,
			       CM_AUTOIDLE);
	omap2_cm_write_mod_reg(cm_context.per_cm_autoidle, OMAP3430_PER_MOD,
			       CM_AUTOIDLE);
	omap2_cm_write_mod_reg(cm_context.usbhost_cm_autoidle,
			       OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
	omap2_cm_write_mod_reg(cm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD,
			       OMAP3430_CM_SLEEPDEP);
	omap2_cm_write_mod_reg(cm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD,
			       OMAP3430_CM_SLEEPDEP);
	omap2_cm_write_mod_reg(cm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD,
			       OMAP3430_CM_SLEEPDEP);
	omap2_cm_write_mod_reg(cm_context.per_cm_sleepdep, OMAP3430_PER_MOD,
			       OMAP3430_CM_SLEEPDEP);
	omap2_cm_write_mod_reg(cm_context.usbhost_cm_sleepdep,
			       OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
	omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD,
			       OMAP3_CM_CLKOUT_CTRL_OFFSET);
}
#endif
Commit	Line	Data
71348bca PW	1	/*
	2	* OMAP2/3 CM module functions
	3	*
	4	* Copyright (C) 2009 Nokia Corporation
	5	* Paul Walmsley
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#include <linux/kernel.h>
71348bca PW	13	#include <linux/types.h>
	14	#include <linux/delay.h>
	15	#include <linux/spinlock.h>
	16	#include <linux/list.h>
	17	#include <linux/errno.h>
	18	#include <linux/err.h>
	19	#include <linux/io.h>
	20
2b43e4e5 TL	21	#include <plat/hardware.h>
2b43e4e5 TL	22
ee0839c2	23	#include "iomap.h"
4e65331c	24	#include "common.h"
71348bca	25	#include "cm.h"
59fb659b	26	#include "cm2xxx_3xxx.h"
71348bca PW	27	#include "cm-regbits-24xx.h"
	28	#include "cm-regbits-34xx.h"
	29
92618ff8	30	/* CM_AUTOIDLE_PLL.AUTO_* bit values for DPLLs */
0fd0c21b PW	31	#define DPLL_AUTOIDLE_DISABLE 0x0
	32	#define OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP 0x3
	33
92618ff8 PW	34	/* CM_AUTOIDLE_PLL.AUTO_* bit values for APLLs (OMAP2xxx only) */
	35	#define OMAP2XXX_APLL_AUTOIDLE_DISABLE 0x0
	36	#define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP 0x3
	37
71348bca PW	38	static const u8 cm_idlest_offs[] = {
	39	CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3
	40	};
	41
c4d7e58f	42	u32 omap2_cm_read_mod_reg(s16 module, u16 idx)
59fb659b PW	43	{
	44	return __raw_readl(cm_base + module + idx);
	45	}
	46
c4d7e58f	47	void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx)
59fb659b PW	48	{
	49	__raw_writel(val, cm_base + module + idx);
	50	}
	51
	52	/* Read-modify-write a register in a CM module. Caller must lock */
c4d7e58f	53	u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
59fb659b PW	54	{
	55	u32 v;
	56
c4d7e58f	57	v = omap2_cm_read_mod_reg(module, idx);
59fb659b PW	58	v &= ~mask;
59fb659b PW	59	v \|= bits;
c4d7e58f	60	omap2_cm_write_mod_reg(v, module, idx);
59fb659b PW	61
	62	return v;
	63	}
	64
c4d7e58f	65	u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
59fb659b	66	{
c4d7e58f	67	return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx);
59fb659b PW	68	}
59fb659b PW	69
c4d7e58f	70	u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
59fb659b	71	{
c4d7e58f	72	return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
59fb659b PW	73	}
59fb659b PW	74
55ae3507 PW	75	/*
	76	*
	77	*/
	78
	79	static void _write_clktrctrl(u8 c, s16 module, u32 mask)
	80	{
	81	u32 v;
	82
	83	v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
	84	v &= ~mask;
	85	v \|= c << __ffs(mask);
	86	omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL);
	87	}
	88
	89	bool omap2_cm_is_clkdm_in_hwsup(s16 module, u32 mask)
	90	{
	91	u32 v;
	92	bool ret = 0;
	93
	94	BUG_ON(!cpu_is_omap24xx() && !cpu_is_omap34xx());
	95
	96	v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
	97	v &= mask;
	98	v >>= __ffs(mask);
	99
	100	if (cpu_is_omap24xx())
	101	ret = (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
	102	else
	103	ret = (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
	104
	105	return ret;
	106	}
	107
	108	void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
	109	{
	110	_write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
	111	}
	112
	113	void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
	114	{
	115	_write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
	116	}
	117
	118	void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
	119	{
	120	_write_clktrctrl(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
	121	}
	122
	123	void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
	124	{
	125	_write_clktrctrl(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
	126	}
	127
	128	void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask)
	129	{
	130	_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, module, mask);
	131	}
	132
	133	void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask)
	134	{
	135	_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, module, mask);
	136	}
	137
0fd0c21b PW	138	/*
	139	* DPLL autoidle control
	140	*/
	141
	142	static void _omap2xxx_set_dpll_autoidle(u8 m)
	143	{
	144	u32 v;
	145
	146	v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
	147	v &= ~OMAP24XX_AUTO_DPLL_MASK;
	148	v \|= m << OMAP24XX_AUTO_DPLL_SHIFT;
	149	omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE);
	150	}
	151
	152	void omap2xxx_cm_set_dpll_disable_autoidle(void)
	153	{
	154	_omap2xxx_set_dpll_autoidle(OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP);
	155	}
	156
	157	void omap2xxx_cm_set_dpll_auto_low_power_stop(void)
	158	{
	159	_omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE);
	160	}
55ae3507	161
92618ff8 PW	162	/*
	163	* APLL autoidle control
	164	*/
	165
	166	static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask)
	167	{
	168	u32 v;
	169
	170	v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
	171	v &= ~mask;
	172	v \|= m << __ffs(mask);
	173	omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE);
	174	}
	175
	176	void omap2xxx_cm_set_apll54_disable_autoidle(void)
	177	{
	178	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
	179	OMAP24XX_AUTO_54M_MASK);
	180	}
	181
	182	void omap2xxx_cm_set_apll54_auto_low_power_stop(void)
	183	{
	184	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
	185	OMAP24XX_AUTO_54M_MASK);
	186	}
	187
	188	void omap2xxx_cm_set_apll96_disable_autoidle(void)
	189	{
	190	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
	191	OMAP24XX_AUTO_96M_MASK);
	192	}
	193
	194	void omap2xxx_cm_set_apll96_auto_low_power_stop(void)
	195	{
	196	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
	197	OMAP24XX_AUTO_96M_MASK);
	198	}
	199
55ae3507 PW	200	/*
	201	*
	202	*/
	203
71348bca PW	204	/**
	205	* omap2_cm_wait_idlest_ready - wait for a module to leave idle or standby
	206	* @prcm_mod: PRCM module offset
	207	* @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3)
	208	* @idlest_shift: shift of the bit in the CM_IDLEST* register to check
	209	*
	210	* XXX document
	211	*/
	212	int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
	213	{
	214	int ena = 0, i = 0;
	215	u8 cm_idlest_reg;
	216	u32 mask;
	217
	218	if (!idlest_id \|\| (idlest_id > ARRAY_SIZE(cm_idlest_offs)))
	219	return -EINVAL;
	220
	221	cm_idlest_reg = cm_idlest_offs[idlest_id - 1];
	222
64056167 KH	223	mask = 1 << idlest_shift;
64056167 KH	224
71348bca	225	if (cpu_is_omap24xx())
64056167	226	ena = mask;
71348bca PW	227	else if (cpu_is_omap34xx())
	228	ena = 0;
	229	else
	230	BUG();
	231
c4d7e58f	232	omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & mask) == ena),
6f8b7ff5	233	MAX_MODULE_READY_TIME, i);
71348bca PW	234
	235	return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
	236	}
	237
f0611a5c PW	238	/*
	239	* Context save/restore code - OMAP3 only
	240	*/
	241	#ifdef CONFIG_ARCH_OMAP3
	242	struct omap3_cm_regs {
	243	u32 iva2_cm_clksel1;
	244	u32 iva2_cm_clksel2;
	245	u32 cm_sysconfig;
	246	u32 sgx_cm_clksel;
	247	u32 dss_cm_clksel;
	248	u32 cam_cm_clksel;
	249	u32 per_cm_clksel;
	250	u32 emu_cm_clksel;
	251	u32 emu_cm_clkstctrl;
a8ae645c	252	u32 pll_cm_autoidle;
f0611a5c PW	253	u32 pll_cm_autoidle2;
	254	u32 pll_cm_clksel4;
	255	u32 pll_cm_clksel5;
	256	u32 pll_cm_clken2;
	257	u32 cm_polctrl;
	258	u32 iva2_cm_fclken;
	259	u32 iva2_cm_clken_pll;
	260	u32 core_cm_fclken1;
	261	u32 core_cm_fclken3;
	262	u32 sgx_cm_fclken;
	263	u32 wkup_cm_fclken;
	264	u32 dss_cm_fclken;
	265	u32 cam_cm_fclken;
	266	u32 per_cm_fclken;
	267	u32 usbhost_cm_fclken;
	268	u32 core_cm_iclken1;
	269	u32 core_cm_iclken2;
	270	u32 core_cm_iclken3;
	271	u32 sgx_cm_iclken;
	272	u32 wkup_cm_iclken;
	273	u32 dss_cm_iclken;
	274	u32 cam_cm_iclken;
	275	u32 per_cm_iclken;
	276	u32 usbhost_cm_iclken;
	277	u32 iva2_cm_autoidle2;
	278	u32 mpu_cm_autoidle2;
	279	u32 iva2_cm_clkstctrl;
	280	u32 mpu_cm_clkstctrl;
	281	u32 core_cm_clkstctrl;
	282	u32 sgx_cm_clkstctrl;
	283	u32 dss_cm_clkstctrl;
	284	u32 cam_cm_clkstctrl;
	285	u32 per_cm_clkstctrl;
	286	u32 neon_cm_clkstctrl;
	287	u32 usbhost_cm_clkstctrl;
	288	u32 core_cm_autoidle1;
	289	u32 core_cm_autoidle2;
	290	u32 core_cm_autoidle3;
	291	u32 wkup_cm_autoidle;
	292	u32 dss_cm_autoidle;
	293	u32 cam_cm_autoidle;
	294	u32 per_cm_autoidle;
	295	u32 usbhost_cm_autoidle;
	296	u32 sgx_cm_sleepdep;
	297	u32 dss_cm_sleepdep;
	298	u32 cam_cm_sleepdep;
	299	u32 per_cm_sleepdep;
	300	u32 usbhost_cm_sleepdep;
	301	u32 cm_clkout_ctrl;
	302	};
	303
	304	static struct omap3_cm_regs cm_context;
	305
	306	void omap3_cm_save_context(void)
	307	{
	308	cm_context.iva2_cm_clksel1 =
c4d7e58f	309	omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
f0611a5c	310	cm_context.iva2_cm_clksel2 =
c4d7e58f	311	omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2);
f0611a5c PW	312	cm_context.cm_sysconfig = __raw_readl(OMAP3430_CM_SYSCONFIG);
f0611a5c PW	313	cm_context.sgx_cm_clksel =
c4d7e58f	314	omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL);
f0611a5c	315	cm_context.dss_cm_clksel =
c4d7e58f	316	omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL);
f0611a5c	317	cm_context.cam_cm_clksel =
c4d7e58f	318	omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL);
f0611a5c	319	cm_context.per_cm_clksel =
c4d7e58f	320	omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL);
f0611a5c	321	cm_context.emu_cm_clksel =
c4d7e58f	322	omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
f0611a5c	323	cm_context.emu_cm_clkstctrl =
c4d7e58f	324	omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
a8ae645c EV	325	/*
	326	* As per erratum i671, ROM code does not respect the PER DPLL
	327	* programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
	328	* In this case, even though this register has been saved in
	329	* scratchpad contents, we need to restore AUTO_PERIPH_DPLL
	330	* by ourselves. So, we need to save it anyway.
	331	*/
	332	cm_context.pll_cm_autoidle =
	333	omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
f0611a5c	334	cm_context.pll_cm_autoidle2 =
c4d7e58f	335	omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
f0611a5c	336	cm_context.pll_cm_clksel4 =
c4d7e58f	337	omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4);
f0611a5c	338	cm_context.pll_cm_clksel5 =
c4d7e58f	339	omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5);
f0611a5c	340	cm_context.pll_cm_clken2 =
c4d7e58f	341	omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2);
f0611a5c PW	342	cm_context.cm_polctrl = __raw_readl(OMAP3430_CM_POLCTRL);
f0611a5c PW	343	cm_context.iva2_cm_fclken =
c4d7e58f PW	344	omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN);
	345	cm_context.iva2_cm_clken_pll =
	346	omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKEN_PLL);
f0611a5c	347	cm_context.core_cm_fclken1 =
c4d7e58f	348	omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
f0611a5c	349	cm_context.core_cm_fclken3 =
c4d7e58f	350	omap2_cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3);
f0611a5c	351	cm_context.sgx_cm_fclken =
c4d7e58f	352	omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN);
f0611a5c	353	cm_context.wkup_cm_fclken =
c4d7e58f	354	omap2_cm_read_mod_reg(WKUP_MOD, CM_FCLKEN);
f0611a5c	355	cm_context.dss_cm_fclken =
c4d7e58f	356	omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN);
f0611a5c	357	cm_context.cam_cm_fclken =
c4d7e58f	358	omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN);
f0611a5c	359	cm_context.per_cm_fclken =
c4d7e58f	360	omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN);
f0611a5c	361	cm_context.usbhost_cm_fclken =
c4d7e58f	362	omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
f0611a5c	363	cm_context.core_cm_iclken1 =
c4d7e58f	364	omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN1);
f0611a5c	365	cm_context.core_cm_iclken2 =
c4d7e58f	366	omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN2);
f0611a5c	367	cm_context.core_cm_iclken3 =
c4d7e58f	368	omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN3);
f0611a5c	369	cm_context.sgx_cm_iclken =
c4d7e58f	370	omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN);
f0611a5c	371	cm_context.wkup_cm_iclken =
c4d7e58f	372	omap2_cm_read_mod_reg(WKUP_MOD, CM_ICLKEN);
f0611a5c	373	cm_context.dss_cm_iclken =
c4d7e58f	374	omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN);
f0611a5c	375	cm_context.cam_cm_iclken =
c4d7e58f	376	omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN);
f0611a5c	377	cm_context.per_cm_iclken =
c4d7e58f	378	omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN);
f0611a5c	379	cm_context.usbhost_cm_iclken =
c4d7e58f	380	omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
f0611a5c	381	cm_context.iva2_cm_autoidle2 =
c4d7e58f	382	omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
f0611a5c	383	cm_context.mpu_cm_autoidle2 =
c4d7e58f	384	omap2_cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
f0611a5c	385	cm_context.iva2_cm_clkstctrl =
c4d7e58f	386	omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	387	cm_context.mpu_cm_clkstctrl =
c4d7e58f	388	omap2_cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	389	cm_context.core_cm_clkstctrl =
c4d7e58f	390	omap2_cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	391	cm_context.sgx_cm_clkstctrl =
c4d7e58f	392	omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	393	cm_context.dss_cm_clkstctrl =
c4d7e58f	394	omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	395	cm_context.cam_cm_clkstctrl =
c4d7e58f	396	omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	397	cm_context.per_cm_clkstctrl =
c4d7e58f	398	omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	399	cm_context.neon_cm_clkstctrl =
c4d7e58f	400	omap2_cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
f0611a5c	401	cm_context.usbhost_cm_clkstctrl =
c4d7e58f PW	402	omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
c4d7e58f PW	403	OMAP2_CM_CLKSTCTRL);
f0611a5c	404	cm_context.core_cm_autoidle1 =
c4d7e58f	405	omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
f0611a5c	406	cm_context.core_cm_autoidle2 =
c4d7e58f	407	omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2);
f0611a5c	408	cm_context.core_cm_autoidle3 =
c4d7e58f	409	omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3);
f0611a5c	410	cm_context.wkup_cm_autoidle =
c4d7e58f	411	omap2_cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE);
f0611a5c	412	cm_context.dss_cm_autoidle =
c4d7e58f	413	omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE);
f0611a5c	414	cm_context.cam_cm_autoidle =
c4d7e58f	415	omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE);
f0611a5c	416	cm_context.per_cm_autoidle =
c4d7e58f	417	omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE);
f0611a5c	418	cm_context.usbhost_cm_autoidle =
c4d7e58f	419	omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
f0611a5c	420	cm_context.sgx_cm_sleepdep =
c4d7e58f PW	421	omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
c4d7e58f PW	422	OMAP3430_CM_SLEEPDEP);
f0611a5c	423	cm_context.dss_cm_sleepdep =
c4d7e58f	424	omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP);
f0611a5c	425	cm_context.cam_cm_sleepdep =
c4d7e58f	426	omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP);
f0611a5c	427	cm_context.per_cm_sleepdep =
c4d7e58f	428	omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP);
f0611a5c	429	cm_context.usbhost_cm_sleepdep =
c4d7e58f PW	430	omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
c4d7e58f PW	431	OMAP3430_CM_SLEEPDEP);
f0611a5c	432	cm_context.cm_clkout_ctrl =
c4d7e58f PW	433	omap2_cm_read_mod_reg(OMAP3430_CCR_MOD,
c4d7e58f PW	434	OMAP3_CM_CLKOUT_CTRL_OFFSET);
f0611a5c PW	435	}
	436
	437	void omap3_cm_restore_context(void)
	438	{
c4d7e58f PW	439	omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD,
	440	CM_CLKSEL1);
	441	omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD,
	442	CM_CLKSEL2);
f0611a5c	443	__raw_writel(cm_context.cm_sysconfig, OMAP3430_CM_SYSCONFIG);
c4d7e58f PW	444	omap2_cm_write_mod_reg(cm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD,
	445	CM_CLKSEL);
	446	omap2_cm_write_mod_reg(cm_context.dss_cm_clksel, OMAP3430_DSS_MOD,
	447	CM_CLKSEL);
	448	omap2_cm_write_mod_reg(cm_context.cam_cm_clksel, OMAP3430_CAM_MOD,
	449	CM_CLKSEL);
	450	omap2_cm_write_mod_reg(cm_context.per_cm_clksel, OMAP3430_PER_MOD,
	451	CM_CLKSEL);
	452	omap2_cm_write_mod_reg(cm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
	453	CM_CLKSEL1);
	454	omap2_cm_write_mod_reg(cm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
	455	OMAP2_CM_CLKSTCTRL);
a8ae645c EV	456	/*
	457	* As per erratum i671, ROM code does not respect the PER DPLL
	458	* programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
	459	* In this case, we need to restore AUTO_PERIPH_DPLL by ourselves.
	460	*/
	461	omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle, PLL_MOD,
	462	CM_AUTOIDLE);
c4d7e58f PW	463	omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle2, PLL_MOD,
	464	CM_AUTOIDLE2);
	465	omap2_cm_write_mod_reg(cm_context.pll_cm_clksel4, PLL_MOD,
	466	OMAP3430ES2_CM_CLKSEL4);
	467	omap2_cm_write_mod_reg(cm_context.pll_cm_clksel5, PLL_MOD,
	468	OMAP3430ES2_CM_CLKSEL5);
	469	omap2_cm_write_mod_reg(cm_context.pll_cm_clken2, PLL_MOD,
	470	OMAP3430ES2_CM_CLKEN2);
f0611a5c	471	__raw_writel(cm_context.cm_polctrl, OMAP3430_CM_POLCTRL);
c4d7e58f PW	472	omap2_cm_write_mod_reg(cm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD,
	473	CM_FCLKEN);
	474	omap2_cm_write_mod_reg(cm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD,
	475	OMAP3430_CM_CLKEN_PLL);
	476	omap2_cm_write_mod_reg(cm_context.core_cm_fclken1, CORE_MOD,
	477	CM_FCLKEN1);
	478	omap2_cm_write_mod_reg(cm_context.core_cm_fclken3, CORE_MOD,
	479	OMAP3430ES2_CM_FCLKEN3);
	480	omap2_cm_write_mod_reg(cm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD,
	481	CM_FCLKEN);
	482	omap2_cm_write_mod_reg(cm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN);
	483	omap2_cm_write_mod_reg(cm_context.dss_cm_fclken, OMAP3430_DSS_MOD,
	484	CM_FCLKEN);
	485	omap2_cm_write_mod_reg(cm_context.cam_cm_fclken, OMAP3430_CAM_MOD,
	486	CM_FCLKEN);
	487	omap2_cm_write_mod_reg(cm_context.per_cm_fclken, OMAP3430_PER_MOD,
	488	CM_FCLKEN);
	489	omap2_cm_write_mod_reg(cm_context.usbhost_cm_fclken,
	490	OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
	491	omap2_cm_write_mod_reg(cm_context.core_cm_iclken1, CORE_MOD,
	492	CM_ICLKEN1);
	493	omap2_cm_write_mod_reg(cm_context.core_cm_iclken2, CORE_MOD,
	494	CM_ICLKEN2);
	495	omap2_cm_write_mod_reg(cm_context.core_cm_iclken3, CORE_MOD,
	496	CM_ICLKEN3);
	497	omap2_cm_write_mod_reg(cm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD,
	498	CM_ICLKEN);
	499	omap2_cm_write_mod_reg(cm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN);
	500	omap2_cm_write_mod_reg(cm_context.dss_cm_iclken, OMAP3430_DSS_MOD,
	501	CM_ICLKEN);
	502	omap2_cm_write_mod_reg(cm_context.cam_cm_iclken, OMAP3430_CAM_MOD,
	503	CM_ICLKEN);
	504	omap2_cm_write_mod_reg(cm_context.per_cm_iclken, OMAP3430_PER_MOD,
	505	CM_ICLKEN);
	506	omap2_cm_write_mod_reg(cm_context.usbhost_cm_iclken,
	507	OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
	508	omap2_cm_write_mod_reg(cm_context.iva2_cm_autoidle2, OMAP3430_IVA2_MOD,
	509	CM_AUTOIDLE2);
	510	omap2_cm_write_mod_reg(cm_context.mpu_cm_autoidle2, MPU_MOD,
	511	CM_AUTOIDLE2);
	512	omap2_cm_write_mod_reg(cm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
	513	OMAP2_CM_CLKSTCTRL);
	514	omap2_cm_write_mod_reg(cm_context.mpu_cm_clkstctrl, MPU_MOD,
	515	OMAP2_CM_CLKSTCTRL);
	516	omap2_cm_write_mod_reg(cm_context.core_cm_clkstctrl, CORE_MOD,
	517	OMAP2_CM_CLKSTCTRL);
	518	omap2_cm_write_mod_reg(cm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
	519	OMAP2_CM_CLKSTCTRL);
	520	omap2_cm_write_mod_reg(cm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
	521	OMAP2_CM_CLKSTCTRL);
	522	omap2_cm_write_mod_reg(cm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
	523	OMAP2_CM_CLKSTCTRL);
	524	omap2_cm_write_mod_reg(cm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
	525	OMAP2_CM_CLKSTCTRL);
	526	omap2_cm_write_mod_reg(cm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
	527	OMAP2_CM_CLKSTCTRL);
	528	omap2_cm_write_mod_reg(cm_context.usbhost_cm_clkstctrl,
	529	OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
	530	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle1, CORE_MOD,
	531	CM_AUTOIDLE1);
	532	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle2, CORE_MOD,
	533	CM_AUTOIDLE2);
	534	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle3, CORE_MOD,
	535	CM_AUTOIDLE3);
536	omap2_cm_write_mod_reg(cm_context.wkup_cm_autoidle, WKUP_MOD,
537	CM_AUTOIDLE);
538	omap2_cm_write_mod_reg(cm_context.dss_cm_autoidle, OMAP3430_DSS_MOD,
539	CM_AUTOIDLE);
540	omap2_cm_write_mod_reg(cm_context.cam_cm_autoidle, OMAP3430_CAM_MOD,
541	CM_AUTOIDLE);
542	omap2_cm_write_mod_reg(cm_context.per_cm_autoidle, OMAP3430_PER_MOD,
543	CM_AUTOIDLE);
544	omap2_cm_write_mod_reg(cm_context.usbhost_cm_autoidle,
545	OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
546	omap2_cm_write_mod_reg(cm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD,
547	OMAP3430_CM_SLEEPDEP);
548	omap2_cm_write_mod_reg(cm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD,
549	OMAP3430_CM_SLEEPDEP);
550	omap2_cm_write_mod_reg(cm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD,
551	OMAP3430_CM_SLEEPDEP);
552	omap2_cm_write_mod_reg(cm_context.per_cm_sleepdep, OMAP3430_PER_MOD,
553	OMAP3430_CM_SLEEPDEP);
554	omap2_cm_write_mod_reg(cm_context.usbhost_cm_sleepdep,
555	OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
556	omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD,
557	OMAP3_CM_CLKOUT_CTRL_OFFSET);
f0611a5c PW	558	}
f0611a5c PW	559	#endif