/*
 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
 * Copyright (c) 2013 Linaro Ltd.
 * Author: Thomas Abraham <thomas.ab@samsung.com>
 *
 * 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.
 *
 * Common Clock Framework support for all Exynos4 SoCs.
*/

#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>

#include <plat/cpu.h>
#include "clk.h"
#include "clk-pll.h"

/* Exynos4 clock controller register offsets */
#define SRC_LEFTBUS		0x4200
#define E4X12_GATE_IP_IMAGE	0x4930
#define GATE_IP_RIGHTBUS	0x8800
#define E4X12_GATE_IP_PERIR	0x8960
#define SRC_TOP0		0xc210
#define SRC_TOP1		0xc214
#define SRC_CAM			0xc220
#define SRC_TV			0xc224
#define SRC_MFC			0xcc28
#define SRC_G3D			0xc22c
#define E4210_SRC_IMAGE		0xc230
#define SRC_LCD0		0xc234
#define SRC_LCD1		0xc238
#define SRC_MAUDIO		0xc23c
#define SRC_FSYS		0xc240
#define SRC_PERIL0		0xc250
#define SRC_PERIL1		0xc254
#define E4X12_SRC_CAM1		0xc258
#define SRC_MASK_CAM		0xc320
#define SRC_MASK_TV		0xc324
#define SRC_MASK_LCD0		0xc334
#define SRC_MASK_LCD1		0xc338
#define SRC_MASK_MAUDIO		0xc33c
#define SRC_MASK_FSYS		0xc340
#define SRC_MASK_PERIL0		0xc350
#define SRC_MASK_PERIL1		0xc354
#define DIV_TOP			0xc510
#define DIV_CAM			0xc520
#define DIV_TV			0xc524
#define DIV_MFC			0xc528
#define DIV_G3D			0xc52c
#define DIV_IMAGE		0xc530
#define DIV_LCD0		0xc534
#define E4210_DIV_LCD1		0xc538
#define E4X12_DIV_ISP		0xc538
#define DIV_MAUDIO		0xc53c
#define DIV_FSYS0		0xc540
#define DIV_FSYS1		0xc544
#define DIV_FSYS2		0xc548
#define DIV_FSYS3		0xc54c
#define DIV_PERIL0		0xc550
#define DIV_PERIL1		0xc554
#define DIV_PERIL2		0xc558
#define DIV_PERIL3		0xc55c
#define DIV_PERIL4		0xc560
#define DIV_PERIL5		0xc564
#define E4X12_DIV_CAM1		0xc568
#define GATE_SCLK_CAM		0xc820
#define GATE_IP_CAM		0xc920
#define GATE_IP_TV		0xc924
#define GATE_IP_MFC		0xc928
#define GATE_IP_G3D		0xc92c
#define E4210_GATE_IP_IMAGE	0xc930
#define GATE_IP_LCD0		0xc934
#define GATE_IP_LCD1		0xc938
#define E4X12_GATE_IP_MAUDIO	0xc93c
#define GATE_IP_FSYS		0xc940
#define GATE_IP_GPS		0xc94c
#define GATE_IP_PERIL		0xc950
#define GATE_IP_PERIR		0xc960
#define E4X12_MPLL_CON0		0x10108
#define E4X12_SRC_DMC		0x10200
#define APLL_CON0		0x14100
#define E4210_MPLL_CON0		0x14108
#define SRC_CPU			0x14200
#define DIV_CPU0		0x14500

/* the exynos4 soc type */
enum exynos4_soc {
	EXYNOS4210,
	EXYNOS4X12,
};

/*
 * Let each supported clock get a unique id. This id is used to lookup the clock
 * for device tree based platforms. The clocks are categorized into three
 * sections: core, sclk gate and bus interface gate clocks.
 *
 * When adding a new clock to this list, it is advised to choose a clock
 * category and add it to the end of that category. That is because the the
 * device tree source file is referring to these ids and any change in the
 * sequence number of existing clocks will require corresponding change in the
 * device tree files. This limitation would go away when pre-processor support
 * for dtc would be available.
 */
enum exynos4_clks {
	none,

	/* core clocks */
	xxti, xusbxti, fin_pll, fout_apll, fout_mpll, fout_epll, fout_vpll,
	sclk_apll, sclk_mpll, sclk_epll, sclk_vpll, arm_clk, aclk200, aclk100,
	aclk160, aclk133, mout_mpll_user_t, mout_mpll_user_c, mout_core,
	mout_apll, /* 20 */

	/* gate for special clocks (sclk) */
	sclk_fimc0 = 128, sclk_fimc1, sclk_fimc2, sclk_fimc3, sclk_cam0,
	sclk_cam1, sclk_csis0, sclk_csis1, sclk_hdmi, sclk_mixer, sclk_dac,
	sclk_pixel, sclk_fimd0, sclk_mdnie0, sclk_mdnie_pwm0, sclk_mipi0,
	sclk_audio0, sclk_mmc0, sclk_mmc1, sclk_mmc2, sclk_mmc3, sclk_mmc4,
	sclk_sata, sclk_uart0, sclk_uart1, sclk_uart2, sclk_uart3, sclk_uart4,
	sclk_audio1, sclk_audio2, sclk_spdif, sclk_spi0, sclk_spi1, sclk_spi2,
	sclk_slimbus, sclk_fimd1, sclk_mipi1, sclk_pcm1, sclk_pcm2, sclk_i2s1,
	sclk_i2s2, sclk_mipihsi, sclk_mfc, sclk_pcm0,

	/* gate clocks */
	fimc0 = 256, fimc1, fimc2, fimc3, csis0, csis1, jpeg, smmu_fimc0,
	smmu_fimc1, smmu_fimc2, smmu_fimc3, smmu_jpeg, vp, mixer, tvenc, hdmi,
	smmu_tv, mfc, smmu_mfcl, smmu_mfcr, g3d, g2d, rotator, mdma, smmu_g2d,
	smmu_rotator, smmu_mdma, fimd0, mie0, mdnie0, dsim0, smmu_fimd0, fimd1,
	mie1, dsim1, smmu_fimd1, pdma0, pdma1, pcie_phy, sata_phy, tsi, sdmmc0,
	sdmmc1, sdmmc2, sdmmc3, sdmmc4, sata, sromc, usb_host, usb_device, pcie,
	onenand, nfcon, smmu_pcie, gps, smmu_gps, uart0, uart1, uart2, uart3,
	uart4, i2c0, i2c1, i2c2, i2c3, i2c4, i2c5, i2c6, i2c7, i2c_hdmi, tsadc,
	spi0, spi1, spi2, i2s1, i2s2, pcm0, i2s0, pcm1, pcm2, pwm, slimbus,
	spdif, ac97, modemif, chipid, sysreg, hdmi_cec, mct, wdt, rtc, keyif,
	audss, mipi_hsi, mdma2,

	nr_clks,
};

/*
 * list of controller registers to be saved and restored during a
 * suspend/resume cycle.
 */
static __initdata unsigned long exynos4_clk_regs[] = {
	SRC_LEFTBUS,
	E4X12_GATE_IP_IMAGE,
	GATE_IP_RIGHTBUS,
	E4X12_GATE_IP_PERIR,
	SRC_TOP0,
	SRC_TOP1,
	SRC_CAM,
	SRC_TV,
	SRC_MFC,
	SRC_G3D,
	E4210_SRC_IMAGE,
	SRC_LCD0,
	SRC_LCD1,
	SRC_MAUDIO,
	SRC_FSYS,
	SRC_PERIL0,
	SRC_PERIL1,
	E4X12_SRC_CAM1,
	SRC_MASK_CAM,
	SRC_MASK_TV,
	SRC_MASK_LCD0,
	SRC_MASK_LCD1,
	SRC_MASK_MAUDIO,
	SRC_MASK_FSYS,
	SRC_MASK_PERIL0,
	SRC_MASK_PERIL1,
	DIV_TOP,
	DIV_CAM,
	DIV_TV,
	DIV_MFC,
	DIV_G3D,
	DIV_IMAGE,
	DIV_LCD0,
	E4210_DIV_LCD1,
	E4X12_DIV_ISP,
	DIV_MAUDIO,
	DIV_FSYS0,
	DIV_FSYS1,
	DIV_FSYS2,
	DIV_FSYS3,
	DIV_PERIL0,
	DIV_PERIL1,
	DIV_PERIL2,
	DIV_PERIL3,
	DIV_PERIL4,
	DIV_PERIL5,
	E4X12_DIV_CAM1,
	GATE_SCLK_CAM,
	GATE_IP_CAM,
	GATE_IP_TV,
	GATE_IP_MFC,
	GATE_IP_G3D,
	E4210_GATE_IP_IMAGE,
	GATE_IP_LCD0,
	GATE_IP_LCD1,
	E4X12_GATE_IP_MAUDIO,
	GATE_IP_FSYS,
	GATE_IP_GPS,
	GATE_IP_PERIL,
	GATE_IP_PERIR,
	E4X12_MPLL_CON0,
	E4X12_SRC_DMC,
	APLL_CON0,
	E4210_MPLL_CON0,
	SRC_CPU,
	DIV_CPU0,
};

/* list of all parent clock list */
PNAME(mout_apll_p)	= { "fin_pll", "fout_apll", };
PNAME(mout_mpll_p)	= { "fin_pll", "fout_mpll", };
PNAME(mout_epll_p)	= { "fin_pll", "fout_epll", };
PNAME(mout_vpllsrc_p)	= { "fin_pll", "sclk_hdmi24m", };
PNAME(mout_vpll_p)	= { "fin_pll", "fout_vpll", };
PNAME(sclk_evpll_p)	= { "sclk_epll", "sclk_vpll", };
PNAME(mout_mfc_p)	= { "mout_mfc0", "mout_mfc1", };
PNAME(mout_g3d_p)	= { "mout_g3d0", "mout_g3d1", };
PNAME(mout_g2d_p)	= { "mout_g2d0", "mout_g2d1", };
PNAME(mout_hdmi_p)	= { "sclk_pixel", "sclk_hdmiphy", };
PNAME(mout_jpeg_p)	= { "mout_jpeg0", "mout_jpeg1", };
PNAME(mout_spdif_p)	= { "sclk_audio0", "sclk_audio1", "sclk_audio2",
				"spdif_extclk", };

/* Exynos 4210-specific parent groups */
PNAME(sclk_vpll_p4210)	= { "mout_vpllsrc", "fout_vpll", };
PNAME(mout_core_p4210)	= { "mout_apll", "sclk_mpll", };
PNAME(sclk_ampll_p4210)	= { "sclk_mpll", "sclk_apll", };
PNAME(group1_p4210)	= { "xxti", "xusbxti", "sclk_hdmi24m",
				"sclk_usbphy0", "none",	"sclk_hdmiphy",
				"sclk_mpll", "sclk_epll", "sclk_vpll", };
PNAME(mout_audio0_p4210) = { "cdclk0", "none", "sclk_hdmi24m",
				"sclk_usbphy0", "xxti", "xusbxti", "sclk_mpll",
				"sclk_epll", "sclk_vpll" };
PNAME(mout_audio1_p4210) = { "cdclk1", "none", "sclk_hdmi24m",
				"sclk_usbphy0", "xxti", "xusbxti", "sclk_mpll",
				"sclk_epll", "sclk_vpll", };
PNAME(mout_audio2_p4210) = { "cdclk2", "none", "sclk_hdmi24m",
				"sclk_usbphy0", "xxti", "xusbxti", "sclk_mpll",
				"sclk_epll", "sclk_vpll", };
PNAME(mout_mixer_p4210)	= { "sclk_dac", "sclk_hdmi", };
PNAME(mout_dac_p4210)	= { "sclk_vpll", "sclk_hdmiphy", };

/* Exynos 4x12-specific parent groups */
PNAME(mout_mpll_user_p4x12) = { "fin_pll", "sclk_mpll", };
PNAME(mout_core_p4x12)	= { "mout_apll", "mout_mpll_user_c", };
PNAME(sclk_ampll_p4x12)	= { "mout_mpll_user_t", "sclk_apll", };
PNAME(group1_p4x12)	= { "xxti", "xusbxti", "sclk_hdmi24m", "sclk_usbphy0",
				"none",	"sclk_hdmiphy", "mout_mpll_user_t",
				"sclk_epll", "sclk_vpll", };
PNAME(mout_audio0_p4x12) = { "cdclk0", "none", "sclk_hdmi24m",
				"sclk_usbphy0", "xxti", "xusbxti",
				"mout_mpll_user_t", "sclk_epll", "sclk_vpll" };
PNAME(mout_audio1_p4x12) = { "cdclk1", "none", "sclk_hdmi24m",
				"sclk_usbphy0", "xxti", "xusbxti",
				"mout_mpll_user_t", "sclk_epll", "sclk_vpll", };
PNAME(mout_audio2_p4x12) = { "cdclk2", "none", "sclk_hdmi24m",
				"sclk_usbphy0", "xxti", "xusbxti",
				"mout_mpll_user_t", "sclk_epll", "sclk_vpll", };
PNAME(aclk_p4412)	= { "mout_mpll_user_t", "sclk_apll", };

/* fixed rate clocks generated outside the soc */
struct samsung_fixed_rate_clock exynos4_fixed_rate_ext_clks[] __initdata = {
	FRATE(xxti, "xxti", NULL, CLK_IS_ROOT, 0),
	FRATE(xusbxti, "xusbxti", NULL, CLK_IS_ROOT, 0),
};

/* fixed rate clocks generated inside the soc */
struct samsung_fixed_rate_clock exynos4_fixed_rate_clks[] __initdata = {
	FRATE(none, "sclk_hdmi24m", NULL, CLK_IS_ROOT, 24000000),
	FRATE(none, "sclk_hdmiphy", NULL, CLK_IS_ROOT, 27000000),
	FRATE(none, "sclk_usbphy0", NULL, CLK_IS_ROOT, 48000000),
};

struct samsung_fixed_rate_clock exynos4210_fixed_rate_clks[] __initdata = {
	FRATE(none, "sclk_usbphy1", NULL, CLK_IS_ROOT, 48000000),
};

/* list of mux clocks supported in all exynos4 soc's */
struct samsung_mux_clock exynos4_mux_clks[] __initdata = {
	MUX_F(mout_apll, "mout_apll", mout_apll_p, SRC_CPU, 0, 1,
			CLK_SET_RATE_PARENT, 0),
	MUX(none, "mout_hdmi", mout_hdmi_p, SRC_TV, 0, 1),
	MUX(none, "mout_mfc1", sclk_evpll_p, SRC_MFC, 4, 1),
	MUX(none, "mout_mfc", mout_mfc_p, SRC_MFC, 8, 1),
	MUX(none, "mout_g3d1", sclk_evpll_p, SRC_G3D, 4, 1),
	MUX(none, "mout_g3d", mout_g3d_p, SRC_G3D, 8, 1),
	MUX(none, "mout_spdif", mout_spdif_p, SRC_PERIL1, 8, 2),
	MUX_A(sclk_epll, "sclk_epll", mout_epll_p, SRC_TOP0, 4, 1, "sclk_epll"),
};

/* list of mux clocks supported in exynos4210 soc */
struct samsung_mux_clock exynos4210_mux_clks[] __initdata = {
	MUX(none, "mout_aclk200", sclk_ampll_p4210, SRC_TOP0, 12, 1),
	MUX(none, "mout_aclk100", sclk_ampll_p4210, SRC_TOP0, 16, 1),
	MUX(none, "mout_aclk160", sclk_ampll_p4210, SRC_TOP0, 20, 1),
	MUX(none, "mout_aclk133", sclk_ampll_p4210, SRC_TOP0, 24, 1),
	MUX(none, "mout_vpllsrc", mout_vpllsrc_p, SRC_TOP1, 0, 1),
	MUX(none, "mout_mixer", mout_mixer_p4210, SRC_TV, 4, 1),
	MUX(none, "mout_dac", mout_dac_p4210, SRC_TV, 8, 1),
	MUX(none, "mout_g2d0", sclk_ampll_p4210, E4210_SRC_IMAGE, 0, 1),
	MUX(none, "mout_g2d1", sclk_evpll_p, E4210_SRC_IMAGE, 4, 1),
	MUX(none, "mout_g2d", mout_g2d_p, E4210_SRC_IMAGE, 8, 1),
	MUX(none, "mout_fimd1", group1_p4210, SRC_LCD1, 0, 4),
	MUX(none, "mout_mipi1", group1_p4210, SRC_LCD1, 12, 4),
	MUX_A(sclk_mpll, "sclk_mpll", mout_mpll_p, SRC_CPU, 8, 1, "sclk_mpll"),
	MUX(none, "mout_core", mout_core_p4210, SRC_CPU, 16, 1),
	MUX_A(sclk_vpll, "sclk_vpll", sclk_vpll_p4210,
			SRC_TOP0, 8, 1, "sclk_vpll"),
	MUX(none, "mout_fimc0", group1_p4210, SRC_CAM, 0, 4),
	MUX(none, "mout_fimc1", group1_p4210, SRC_CAM, 4, 4),
	MUX(none, "mout_fimc2", group1_p4210, SRC_CAM, 8, 4),
	MUX(none, "mout_fimc3", group1_p4210, SRC_CAM, 12, 4),
	MUX(none, "mout_cam0", group1_p4210, SRC_CAM, 16, 4),
	MUX(none, "mout_cam1", group1_p4210, SRC_CAM, 20, 4),
	MUX(none, "mout_csis0", group1_p4210, SRC_CAM, 24, 4),
	MUX(none, "mout_csis1", group1_p4210, SRC_CAM, 28, 4),
	MUX(none, "mout_mfc0", sclk_ampll_p4210, SRC_MFC, 0, 1),
	MUX(none, "mout_g3d0", sclk_ampll_p4210, SRC_G3D, 0, 1),
	MUX(none, "mout_fimd0", group1_p4210, SRC_LCD0, 0, 4),
	MUX(none, "mout_mipi0", group1_p4210, SRC_LCD0, 12, 4),
	MUX(none, "mout_audio0", mout_audio0_p4210, SRC_MAUDIO, 0, 4),
	MUX(none, "mout_mmc0", group1_p4210, SRC_FSYS, 0, 4),
	MUX(none, "mout_mmc1", group1_p4210, SRC_FSYS, 4, 4),
	MUX(none, "mout_mmc2", group1_p4210, SRC_FSYS, 8, 4),
	MUX(none, "mout_mmc3", group1_p4210, SRC_FSYS, 12, 4),
	MUX(none, "mout_mmc4", group1_p4210, SRC_FSYS, 16, 4),
	MUX(none, "mout_uart0", group1_p4210, SRC_PERIL0, 0, 4),
	MUX(none, "mout_uart1", group1_p4210, SRC_PERIL0, 4, 4),
	MUX(none, "mout_uart2", group1_p4210, SRC_PERIL0, 8, 4),
	MUX(none, "mout_uart3", group1_p4210, SRC_PERIL0, 12, 4),
	MUX(none, "mout_uart4", group1_p4210, SRC_PERIL0, 16, 4),
	MUX(none, "mout_audio1", mout_audio1_p4210, SRC_PERIL1, 0, 4),
	MUX(none, "mout_audio2", mout_audio2_p4210, SRC_PERIL1, 4, 4),
	MUX(none, "mout_spi0", group1_p4210, SRC_PERIL1, 16, 4),
	MUX(none, "mout_spi1", group1_p4210, SRC_PERIL1, 20, 4),
	MUX(none, "mout_spi2", group1_p4210, SRC_PERIL1, 24, 4),
};

/* list of mux clocks supported in exynos4x12 soc */
struct samsung_mux_clock exynos4x12_mux_clks[] __initdata = {
	MUX(mout_mpll_user_c, "mout_mpll_user_c", mout_mpll_user_p4x12,
			SRC_CPU, 24, 1),
	MUX(mout_mpll_user_t, "mout_mpll_user_t", mout_mpll_user_p4x12,
			SRC_TOP1, 12, 1),
	MUX(none, "mout_aclk200", aclk_p4412, SRC_TOP0, 12, 1),
	MUX(none, "mout_aclk100", aclk_p4412, SRC_TOP0, 16, 1),
	MUX(none, "mout_aclk160", aclk_p4412, SRC_TOP0, 20, 1),
	MUX(none, "mout_aclk133", aclk_p4412, SRC_TOP0, 24, 1),
	MUX(none, "mout_mdnie0", group1_p4x12, SRC_LCD0, 4, 4),
	MUX(none, "mout_mdnie_pwm0", group1_p4x12, SRC_LCD0, 8, 4),
	MUX(none, "mout_sata", sclk_ampll_p4x12, SRC_FSYS, 24, 1),
	MUX(none, "mout_jpeg0", sclk_ampll_p4x12, E4X12_SRC_CAM1, 0, 1),
	MUX(none, "mout_jpeg1", sclk_evpll_p, E4X12_SRC_CAM1, 4, 1),
	MUX(none, "mout_jpeg", mout_jpeg_p, E4X12_SRC_CAM1, 8, 1),
	MUX_A(sclk_mpll, "sclk_mpll", mout_mpll_p,
			E4X12_SRC_DMC, 12, 1, "sclk_mpll"),
	MUX_A(sclk_vpll, "sclk_vpll", mout_vpll_p,
			SRC_TOP0, 8, 1, "sclk_vpll"),
	MUX(mout_core, "mout_core", mout_core_p4x12, SRC_CPU, 16, 1),
	MUX(none, "mout_fimc0", group1_p4x12, SRC_CAM, 0, 4),
	MUX(none, "mout_fimc1", group1_p4x12, SRC_CAM, 4, 4),
	MUX(none, "mout_fimc2", group1_p4x12, SRC_CAM, 8, 4),
	MUX(none, "mout_fimc3", group1_p4x12, SRC_CAM, 12, 4),
	MUX(none, "mout_cam0", group1_p4x12, SRC_CAM, 16, 4),
	MUX(none, "mout_cam1", group1_p4x12, SRC_CAM, 20, 4),
	MUX(none, "mout_csis0", group1_p4x12, SRC_CAM, 24, 4),
	MUX(none, "mout_csis1", group1_p4x12, SRC_CAM, 28, 4),
	MUX(none, "mout_mfc0", sclk_ampll_p4x12, SRC_MFC, 0, 1),
	MUX(none, "mout_g3d0", sclk_ampll_p4x12, SRC_G3D, 0, 1),
	MUX(none, "mout_fimd0", group1_p4x12, SRC_LCD0, 0, 4),
	MUX(none, "mout_mipi0", group1_p4x12, SRC_LCD0, 12, 4),
	MUX(none, "mout_audio0", mout_audio0_p4x12, SRC_MAUDIO, 0, 4),
	MUX(none, "mout_mmc0", group1_p4x12, SRC_FSYS, 0, 4),
	MUX(none, "mout_mmc1", group1_p4x12, SRC_FSYS, 4, 4),
	MUX(none, "mout_mmc2", group1_p4x12, SRC_FSYS, 8, 4),
	MUX(none, "mout_mmc3", group1_p4x12, SRC_FSYS, 12, 4),
	MUX(none, "mout_mmc4", group1_p4x12, SRC_FSYS, 16, 4),
	MUX(none, "mout_mipihsi", aclk_p4412, SRC_FSYS, 24, 1),
	MUX(none, "mout_uart0", group1_p4x12, SRC_PERIL0, 0, 4),
	MUX(none, "mout_uart1", group1_p4x12, SRC_PERIL0, 4, 4),
	MUX(none, "mout_uart2", group1_p4x12, SRC_PERIL0, 8, 4),
	MUX(none, "mout_uart3", group1_p4x12, SRC_PERIL0, 12, 4),
	MUX(none, "mout_uart4", group1_p4x12, SRC_PERIL0, 16, 4),
	MUX(none, "mout_audio1", mout_audio1_p4x12, SRC_PERIL1, 0, 4),
	MUX(none, "mout_audio2", mout_audio2_p4x12, SRC_PERIL1, 4, 4),
	MUX(none, "mout_spi0", group1_p4x12, SRC_PERIL1, 16, 4),
	MUX(none, "mout_spi1", group1_p4x12, SRC_PERIL1, 20, 4),
	MUX(none, "mout_spi2", group1_p4x12, SRC_PERIL1, 24, 4),
};

/* list of divider clocks supported in all exynos4 soc's */
struct samsung_div_clock exynos4_div_clks[] __initdata = {
	DIV(none, "div_core", "mout_core", DIV_CPU0, 0, 3),
	DIV(none, "div_core2", "div_core", DIV_CPU0, 28, 3),
	DIV(none, "div_fimc0", "mout_fimc0", DIV_CAM, 0, 4),
	DIV(none, "div_fimc1", "mout_fimc1", DIV_CAM, 4, 4),
	DIV(none, "div_fimc2", "mout_fimc2", DIV_CAM, 8, 4),
	DIV(none, "div_fimc3", "mout_fimc3", DIV_CAM, 12, 4),
	DIV(none, "div_cam0", "mout_cam0", DIV_CAM, 16, 4),
	DIV(none, "div_cam1", "mout_cam1", DIV_CAM, 20, 4),
	DIV(none, "div_csis0", "mout_csis0", DIV_CAM, 24, 4),
	DIV(none, "div_csis1", "mout_csis1", DIV_CAM, 28, 4),
	DIV(sclk_mfc, "sclk_mfc", "mout_mfc", DIV_MFC, 0, 4),
	DIV(none, "div_g3d", "mout_g3d", DIV_G3D, 0, 4),
	DIV(none, "div_fimd0", "mout_fimd0", DIV_LCD0, 0, 4),
	DIV(none, "div_mipi0", "mout_mipi0", DIV_LCD0, 16, 4),
	DIV(none, "div_audio0", "mout_audio0", DIV_MAUDIO, 0, 4),
	DIV(sclk_pcm0, "sclk_pcm0", "sclk_audio0", DIV_MAUDIO, 4, 8),
	DIV(none, "div_mmc0", "mout_mmc0", DIV_FSYS1, 0, 4),
	DIV(none, "div_mmc1", "mout_mmc1", DIV_FSYS1, 16, 4),
	DIV(none, "div_mmc2", "mout_mmc2", DIV_FSYS2, 0, 4),
	DIV(none, "div_mmc3", "mout_mmc3", DIV_FSYS2, 16, 4),
	DIV(sclk_pixel, "sclk_pixel", "sclk_vpll", DIV_TV, 0, 4),
	DIV(aclk200, "aclk200", "mout_aclk200", DIV_TOP, 0, 3),
	DIV(aclk100, "aclk100", "mout_aclk100", DIV_TOP, 4, 4),
	DIV(aclk160, "aclk160", "mout_aclk160", DIV_TOP, 8, 3),
	DIV(aclk133, "aclk133", "mout_aclk133", DIV_TOP, 12, 3),
	DIV(sclk_slimbus, "sclk_slimbus", "sclk_epll", DIV_PERIL3, 4, 4),
	DIV(sclk_pcm1, "sclk_pcm1", "sclk_audio1", DIV_PERIL4, 4, 8),
	DIV(sclk_pcm2, "sclk_pcm2", "sclk_audio2", DIV_PERIL4, 20, 8),
	DIV(sclk_i2s1, "sclk_i2s1", "sclk_audio1", DIV_PERIL5, 0, 6),
	DIV(sclk_i2s2, "sclk_i2s2", "sclk_audio2", DIV_PERIL5, 8, 6),
	DIV(none, "div_mmc4", "mout_mmc4", DIV_FSYS3, 0, 4),
	DIV(none, "div_mmc_pre4", "div_mmc4", DIV_FSYS3, 8, 8),
	DIV(none, "div_uart0", "mout_uart0", DIV_PERIL0, 0, 4),
	DIV(none, "div_uart1", "mout_uart1", DIV_PERIL0, 4, 4),
	DIV(none, "div_uart2", "mout_uart2", DIV_PERIL0, 8, 4),
	DIV(none, "div_uart3", "mout_uart3", DIV_PERIL0, 12, 4),
	DIV(none, "div_uart4", "mout_uart4", DIV_PERIL0, 16, 4),
	DIV(none, "div_spi0", "mout_spi0", DIV_PERIL1, 0, 4),
	DIV(none, "div_spi_pre0", "div_spi0", DIV_PERIL1, 8, 8),
	DIV(none, "div_spi1", "mout_spi1", DIV_PERIL1, 16, 4),
	DIV(none, "div_spi_pre1", "div_spi1", DIV_PERIL1, 24, 8),
	DIV(none, "div_spi2", "mout_spi2", DIV_PERIL2, 0, 4),
	DIV(none, "div_spi_pre2", "div_spi2", DIV_PERIL2, 8, 8),
	DIV(none, "div_audio1", "mout_audio1", DIV_PERIL4, 0, 4),
	DIV(none, "div_audio2", "mout_audio2", DIV_PERIL4, 16, 4),
	DIV_A(arm_clk, "arm_clk", "div_core2", DIV_CPU0, 28, 3, "arm_clk"),
	DIV_A(sclk_apll, "sclk_apll", "mout_apll",
			DIV_CPU0, 24, 3, "sclk_apll"),
	DIV_F(none, "div_mipi_pre0", "div_mipi0", DIV_LCD0, 20, 4,
			CLK_SET_RATE_PARENT, 0),
	DIV_F(none, "div_mmc_pre0", "div_mmc0", DIV_FSYS1, 8, 8,
			CLK_SET_RATE_PARENT, 0),
	DIV_F(none, "div_mmc_pre1", "div_mmc1", DIV_FSYS1, 24, 8,
			CLK_SET_RATE_PARENT, 0),
	DIV_F(none, "div_mmc_pre2", "div_mmc2", DIV_FSYS2, 8, 8,
			CLK_SET_RATE_PARENT, 0),
	DIV_F(none, "div_mmc_pre3", "div_mmc3", DIV_FSYS2, 24, 8,
			CLK_SET_RATE_PARENT, 0),
};

/* list of divider clocks supported in exynos4210 soc */
struct samsung_div_clock exynos4210_div_clks[] __initdata = {
	DIV(none, "div_g2d", "mout_g2d", DIV_IMAGE, 0, 4),
	DIV(none, "div_fimd1", "mout_fimd1", E4210_DIV_LCD1, 0, 4),
	DIV(none, "div_mipi1", "mout_mipi1", E4210_DIV_LCD1, 16, 4),
	DIV(none, "div_sata", "mout_sata", DIV_FSYS0, 20, 4),
	DIV_F(none, "div_mipi_pre1", "div_mipi1", E4210_DIV_LCD1, 20, 4,
			CLK_SET_RATE_PARENT, 0),
};

/* list of divider clocks supported in exynos4x12 soc */
struct samsung_div_clock exynos4x12_div_clks[] __initdata = {
	DIV(none, "div_mdnie0", "mout_mdnie0", DIV_LCD0, 4, 4),
	DIV(none, "div_mdnie_pwm0", "mout_mdnie_pwm0", DIV_LCD0, 8, 4),
	DIV(none, "div_mdnie_pwm_pre0", "div_mdnie_pwm0", DIV_LCD0, 12, 4),
	DIV(none, "div_mipihsi", "mout_mipihsi", DIV_FSYS0, 20, 4),
	DIV(none, "div_jpeg", "mout_jpeg", E4X12_DIV_CAM1, 0, 4),
};

/* list of gate clocks supported in all exynos4 soc's */
struct samsung_gate_clock exynos4_gate_clks[] __initdata = {
	/*
	 * After all Exynos4 based platforms are migrated to use device tree,
	 * the device name and clock alias names specified below for some
	 * of the clocks can be removed.
	 */
	GATE(sclk_hdmi, "sclk_hdmi", "mout_hdmi", SRC_MASK_TV, 0, 0, 0),
	GATE(sclk_spdif, "sclk_spdif", "mout_spdif", 0xc354, 8, 0, 0),
	GATE(jpeg, "jpeg", "aclk160", GATE_IP_CAM, 6, 0, 0),
	GATE(mie0, "mie0", "aclk160", GATE_IP_LCD0, 1, 0, 0),
	GATE(dsim0, "dsim0", "aclk160", GATE_IP_LCD0, 3, 0, 0),
	GATE(fimd1, "fimd1", "aclk160", GATE_IP_LCD1, 0, 0, 0),
	GATE(mie1, "mie1", "aclk160", GATE_IP_LCD1, 1, 0, 0),
	GATE(dsim1, "dsim1", "aclk160", GATE_IP_LCD1, 3, 0, 0),
	GATE(smmu_fimd1, "smmu_fimd1", "aclk160", GATE_IP_LCD1, 4, 0, 0),
	GATE(tsi, "tsi", "aclk133", GATE_IP_FSYS, 4, 0, 0),
	GATE(sromc, "sromc", "aclk133", GATE_IP_FSYS, 11, 0, 0),
	GATE(g3d, "g3d", "aclk200", GATE_IP_G3D, 0, 0, 0),
	GATE(usb_device, "usb_device", "aclk133", GATE_IP_FSYS, 13, 0, 0),
	GATE(onenand, "onenand", "aclk133", GATE_IP_FSYS, 15, 0, 0),
	GATE(nfcon, "nfcon", "aclk133", GATE_IP_FSYS, 16, 0, 0),
	GATE(gps, "gps", "aclk133", GATE_IP_GPS, 0, 0, 0),
	GATE(smmu_gps, "smmu_gps", "aclk133", GATE_IP_GPS, 1, 0, 0),
	GATE(slimbus, "slimbus", "aclk100", GATE_IP_PERIL, 25, 0, 0),
	GATE(sclk_cam0, "sclk_cam0", "div_cam0", GATE_SCLK_CAM, 4,
			CLK_SET_RATE_PARENT, 0),
	GATE(sclk_cam1, "sclk_cam1", "div_cam1", GATE_SCLK_CAM, 5,
			CLK_SET_RATE_PARENT, 0),
	GATE(sclk_mipi0, "sclk_mipi0", "div_mipi_pre0",
			SRC_MASK_LCD0, 12, CLK_SET_RATE_PARENT, 0),
	GATE(sclk_audio0, "sclk_audio0", "div_audio0", SRC_MASK_MAUDIO, 0,
			CLK_SET_RATE_PARENT, 0),
	GATE(sclk_audio1, "sclk_audio1", "div_audio1", 0xc354, 0,
			CLK_SET_RATE_PARENT, 0),
	GATE_D(vp, "s5p-mixer", "vp", "aclk160", GATE_IP_TV, 0, 0, 0),
	GATE_D(mixer, "s5p-mixer", "mixer", "aclk160", GATE_IP_TV, 1, 0, 0),
	GATE_D(hdmi, "exynos4-hdmi", "hdmi", "aclk160", GATE_IP_TV, 3, 0, 0),
	GATE_A(pwm, "pwm", "aclk100", GATE_IP_PERIL, 24, 0, 0, "timers"),
	GATE_A(sdmmc4, "sdmmc4", "aclk133", GATE_IP_FSYS, 9, 0, 0, "biu"),
	GATE_A(usb_host, "usb_host", "aclk133",
			GATE_IP_FSYS, 12, 0, 0, "usbhost"),
	GATE_DA(sclk_fimc0, "exynos4-fimc.0", "sclk_fimc0", "div_fimc0",
			SRC_MASK_CAM, 0, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
	GATE_DA(sclk_fimc1, "exynos4-fimc.1", "sclk_fimc1", "div_fimc1",
			SRC_MASK_CAM, 4, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
	GATE_DA(sclk_fimc2, "exynos4-fimc.2", "sclk_fimc2", "div_fimc2",
			SRC_MASK_CAM, 8, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
	GATE_DA(sclk_fimc3, "exynos4-fimc.3", "sclk_fimc3", "div_fimc3",
			SRC_MASK_CAM, 12, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
	GATE_DA(sclk_csis0, "s5p-mipi-csis.0", "sclk_csis0", "div_csis0",
			SRC_MASK_CAM, 24, CLK_SET_RATE_PARENT, 0, "sclk_csis"),
	GATE_DA(sclk_csis1, "s5p-mipi-csis.1", "sclk_csis1", "div_csis1",
			SRC_MASK_CAM, 28, CLK_SET_RATE_PARENT, 0, "sclk_csis"),
	GATE_DA(sclk_fimd0, "exynos4-fb.0", "sclk_fimd0", "div_fimd0",
			SRC_MASK_LCD0, 0, CLK_SET_RATE_PARENT, 0, "sclk_fimd"),
	GATE_DA(sclk_mmc0, "exynos4-sdhci.0", "sclk_mmc0", "div_mmc_pre0",
			SRC_MASK_FSYS, 0, CLK_SET_RATE_PARENT, 0,
			"mmc_busclk.2"),
	GATE_DA(sclk_mmc1, "exynos4-sdhci.1", "sclk_mmc1", "div_mmc_pre1",
			SRC_MASK_FSYS, 4, CLK_SET_RATE_PARENT, 0,
			"mmc_busclk.2"),
	GATE_DA(sclk_mmc2, "exynos4-sdhci.2", "sclk_mmc2", "div_mmc_pre2",
			SRC_MASK_FSYS, 8, CLK_SET_RATE_PARENT, 0,
			"mmc_busclk.2"),
	GATE_DA(sclk_mmc3, "exynos4-sdhci.3", "sclk_mmc3", "div_mmc_pre3",
			SRC_MASK_FSYS, 12, CLK_SET_RATE_PARENT, 0,
			"mmc_busclk.2"),
	GATE_DA(sclk_mmc4, NULL, "sclk_mmc4", "div_mmc_pre4",
			SRC_MASK_FSYS, 16, CLK_SET_RATE_PARENT, 0, "ciu"),
	GATE_DA(sclk_uart0, "exynos4210-uart.0", "uclk0", "div_uart0",
			0xc350, 0, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
	GATE_DA(sclk_uart1, "exynos4210-uart.1", "uclk1", "div_uart1",
			0xc350, 4, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
	GATE_DA(sclk_uart2, "exynos4210-uart.2", "uclk2", "div_uart2",
			0xc350, 8, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
	GATE_DA(sclk_uart3, "exynos4210-uart.3", "uclk3", "div_uart3",
			0xc350, 12, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
	GATE_DA(sclk_uart4, "exynos4210-uart.4", "uclk4", "div_uart4",
			0xc350, 16, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
	GATE(sclk_audio2, "sclk_audio2", "div_audio2", 0xc354, 4,
			CLK_SET_RATE_PARENT, 0),
	GATE_DA(sclk_spi0, "exynos4210-spi.0", "sclk_spi0", "div_spi_pre0",
			0xc354, 16, CLK_SET_RATE_PARENT, 0, "spi_busclk0"),
	GATE_DA(sclk_spi1, "exynos4210-spi.1", "sclk_spi1", "div_spi_pre1",
			0xc354, 20, CLK_SET_RATE_PARENT, 0, "spi_busclk0"),
	GATE_DA(sclk_spi2, "exynos4210-spi.2", "sclk_spi2", "div_spi_pre2",
			0xc354, 24, CLK_SET_RATE_PARENT, 0, "spi_busclk0"),
	GATE_DA(fimc0, "exynos4-fimc.0", "fimc0", "aclk160",
			GATE_IP_CAM, 0, 0, 0, "fimc"),
	GATE_DA(fimc1, "exynos4-fimc.1", "fimc1", "aclk160",
			GATE_IP_CAM, 1, 0, 0, "fimc"),
	GATE_DA(fimc2, "exynos4-fimc.2", "fimc2", "aclk160",
			GATE_IP_CAM, 2, 0, 0, "fimc"),
	GATE_DA(fimc3, "exynos4-fimc.3", "fimc3", "aclk160",
			GATE_IP_CAM, 3, 0, 0, "fimc"),
	GATE_DA(csis0, "s5p-mipi-csis.0", "csis0", "aclk160",
			GATE_IP_CAM, 4, 0, 0, "fimc"),
	GATE_DA(csis1, "s5p-mipi-csis.1", "csis1", "aclk160",
			GATE_IP_CAM, 5, 0, 0, "fimc"),
	GATE_DA(smmu_fimc0, "exynos-sysmmu.5", "smmu_fimc0", "aclk160",
			GATE_IP_CAM, 7, 0, 0, "sysmmu"),
	GATE_DA(smmu_fimc1, "exynos-sysmmu.6", "smmu_fimc1", "aclk160",
			GATE_IP_CAM, 8, 0, 0, "sysmmu"),
	GATE_DA(smmu_fimc2, "exynos-sysmmu.7", "smmu_fimc2", "aclk160",
			GATE_IP_CAM, 9, 0, 0, "sysmmu"),
	GATE_DA(smmu_fimc3, "exynos-sysmmu.8", "smmu_fimc3", "aclk160",
			GATE_IP_CAM, 10, 0, 0, "sysmmu"),
	GATE_DA(smmu_jpeg, "exynos-sysmmu.3", "smmu_jpeg", "aclk160",
			GATE_IP_CAM, 11, 0, 0, "sysmmu"),
	GATE_DA(smmu_tv, "exynos-sysmmu.2", "smmu_tv", "aclk160",
			GATE_IP_TV, 4, 0, 0, "sysmmu"),
	GATE_DA(mfc, "s5p-mfc", "mfc", "aclk100", GATE_IP_MFC, 0, 0, 0, "mfc"),
	GATE_DA(smmu_mfcl, "exynos-sysmmu.0", "smmu_mfcl", "aclk100",
			GATE_IP_MFC, 1, 0, 0, "sysmmu"),
	GATE_DA(smmu_mfcr, "exynos-sysmmu.1", "smmu_mfcr", "aclk100",
			GATE_IP_MFC, 2, 0, 0, "sysmmu"),
	GATE_DA(fimd0, "exynos4-fb.0", "fimd0", "aclk160",
			GATE_IP_LCD0, 0, 0, 0, "fimd"),
	GATE_DA(smmu_fimd0, "exynos-sysmmu.10", "smmu_fimd0", "aclk160",
			GATE_IP_LCD0, 4, 0, 0, "sysmmu"),
	GATE_DA(pdma0, "dma-pl330.0", "pdma0", "aclk133",
			GATE_IP_FSYS, 0, 0, 0, "dma"),
	GATE_DA(pdma1, "dma-pl330.1", "pdma1", "aclk133",
			GATE_IP_FSYS, 1, 0, 0, "dma"),
	GATE_DA(sdmmc0, "exynos4-sdhci.0", "sdmmc0", "aclk133",
			GATE_IP_FSYS, 5, 0, 0, "hsmmc"),
	GATE_DA(sdmmc1, "exynos4-sdhci.1", "sdmmc1", "aclk133",
			GATE_IP_FSYS, 6, 0, 0, "hsmmc"),
	GATE_DA(sdmmc2, "exynos4-sdhci.2", "sdmmc2", "aclk133",
			GATE_IP_FSYS, 7, 0, 0, "hsmmc"),
	GATE_DA(sdmmc3, "exynos4-sdhci.3", "sdmmc3", "aclk133",
			GATE_IP_FSYS, 8, 0, 0, "hsmmc"),
	GATE_DA(uart0, "exynos4210-uart.0", "uart0", "aclk100",
			GATE_IP_PERIL, 0, 0, 0, "uart"),
	GATE_DA(uart1, "exynos4210-uart.1", "uart1", "aclk100",
			GATE_IP_PERIL, 1, 0, 0, "uart"),
	GATE_DA(uart2, "exynos4210-uart.2", "uart2", "aclk100",
			GATE_IP_PERIL, 2, 0, 0, "uart"),
	GATE_DA(uart3, "exynos4210-uart.3", "uart3", "aclk100",
			GATE_IP_PERIL, 3, 0, 0, "uart"),
	GATE_DA(uart4, "exynos4210-uart.4", "uart4", "aclk100",
			GATE_IP_PERIL, 4, 0, 0, "uart"),
	GATE_DA(i2c0, "s3c2440-i2c.0", "i2c0", "aclk100",
			GATE_IP_PERIL, 6, 0, 0, "i2c"),
	GATE_DA(i2c1, "s3c2440-i2c.1", "i2c1", "aclk100",
			GATE_IP_PERIL, 7, 0, 0, "i2c"),
	GATE_DA(i2c2, "s3c2440-i2c.2", "i2c2", "aclk100",
			GATE_IP_PERIL, 8, 0, 0, "i2c"),
	GATE_DA(i2c3, "s3c2440-i2c.3", "i2c3", "aclk100",
			GATE_IP_PERIL, 9, 0, 0, "i2c"),
	GATE_DA(i2c4, "s3c2440-i2c.4", "i2c4", "aclk100",
			GATE_IP_PERIL, 10, 0, 0, "i2c"),
	GATE_DA(i2c5, "s3c2440-i2c.5", "i2c5", "aclk100",
			GATE_IP_PERIL, 11, 0, 0, "i2c"),
	GATE_DA(i2c6, "s3c2440-i2c.6", "i2c6", "aclk100",
			GATE_IP_PERIL, 12, 0, 0, "i2c"),
	GATE_DA(i2c7, "s3c2440-i2c.7", "i2c7", "aclk100",
			GATE_IP_PERIL, 13, 0, 0, "i2c"),
	GATE_DA(i2c_hdmi, "s3c2440-hdmiphy-i2c", "i2c-hdmi", "aclk100",
			GATE_IP_PERIL, 14, 0, 0, "i2c"),
	GATE_DA(spi0, "exynos4210-spi.0", "spi0", "aclk100",
			GATE_IP_PERIL, 16, 0, 0, "spi"),
	GATE_DA(spi1, "exynos4210-spi.1", "spi1", "aclk100",
			GATE_IP_PERIL, 17, 0, 0, "spi"),
	GATE_DA(spi2, "exynos4210-spi.2", "spi2", "aclk100",
			GATE_IP_PERIL, 18, 0, 0, "spi"),
	GATE_DA(i2s1, "samsung-i2s.1", "i2s1", "aclk100",
			GATE_IP_PERIL, 20, 0, 0, "iis"),
	GATE_DA(i2s2, "samsung-i2s.2", "i2s2", "aclk100",
			GATE_IP_PERIL, 21, 0, 0, "iis"),
	GATE_DA(pcm1, "samsung-pcm.1", "pcm1", "aclk100",
			GATE_IP_PERIL, 22, 0, 0, "pcm"),
	GATE_DA(pcm2, "samsung-pcm.2", "pcm2", "aclk100",
			GATE_IP_PERIL, 23, 0, 0, "pcm"),
	GATE_DA(spdif, "samsung-spdif", "spdif", "aclk100",
			GATE_IP_PERIL, 26, 0, 0, "spdif"),
	GATE_DA(ac97, "samsung-ac97", "ac97", "aclk100",
			GATE_IP_PERIL, 27, 0, 0, "ac97"),
};

/* list of gate clocks supported in exynos4210 soc */
struct samsung_gate_clock exynos4210_gate_clks[] __initdata = {
	GATE(tvenc, "tvenc", "aclk160", GATE_IP_TV, 2, 0, 0),
	GATE(g2d, "g2d", "aclk200", E4210_GATE_IP_IMAGE, 0, 0, 0),
	GATE(rotator, "rotator", "aclk200", E4210_GATE_IP_IMAGE, 1, 0, 0),
	GATE(mdma, "mdma", "aclk200", E4210_GATE_IP_IMAGE, 2, 0, 0),
	GATE(smmu_g2d, "smmu_g2d", "aclk200", E4210_GATE_IP_IMAGE, 3, 0, 0),
	GATE(smmu_mdma, "smmu_mdma", "aclk200", E4210_GATE_IP_IMAGE, 5, 0, 0),
	GATE(pcie_phy, "pcie_phy", "aclk133", GATE_IP_FSYS, 2, 0, 0),
	GATE(sata_phy, "sata_phy", "aclk133", GATE_IP_FSYS, 3, 0, 0),
	GATE(sata, "sata", "aclk133", GATE_IP_FSYS, 10, 0, 0),
	GATE(pcie, "pcie", "aclk133", GATE_IP_FSYS, 14, 0, 0),
	GATE(smmu_pcie, "smmu_pcie", "aclk133", GATE_IP_FSYS, 18, 0, 0),
	GATE(modemif, "modemif", "aclk100", GATE_IP_PERIL, 28, 0, 0),
	GATE(chipid, "chipid", "aclk100", GATE_IP_PERIR, 0, 0, 0),
	GATE(sysreg, "sysreg", "aclk100", GATE_IP_PERIR, 0, 0, 0),
	GATE(hdmi_cec, "hdmi_cec", "aclk100", GATE_IP_PERIR, 11, 0, 0),
	GATE(smmu_rotator, "smmu_rotator", "aclk200",
			E4210_GATE_IP_IMAGE, 4, 0, 0),
	GATE(sclk_mipi1, "sclk_mipi1", "div_mipi_pre1",
			SRC_MASK_LCD1, 12, CLK_SET_RATE_PARENT, 0),
	GATE(sclk_sata, "sclk_sata", "div_sata",
			SRC_MASK_FSYS, 24, CLK_SET_RATE_PARENT, 0),
	GATE(sclk_mixer, "sclk_mixer", "mout_mixer", SRC_MASK_TV, 4, 0, 0),
	GATE(sclk_dac, "sclk_dac", "mout_dac", SRC_MASK_TV, 8, 0, 0),
	GATE_A(tsadc, "tsadc", "aclk100", GATE_IP_PERIL, 15, 0, 0, "adc"),
	GATE_A(mct, "mct", "aclk100", GATE_IP_PERIR, 13, 0, 0, "mct"),
	GATE_A(wdt, "watchdog", "aclk100", GATE_IP_PERIR, 14, 0, 0, "watchdog"),
	GATE_A(rtc, "rtc", "aclk100", GATE_IP_PERIR, 15, 0, 0, "rtc"),
	GATE_A(keyif, "keyif", "aclk100", GATE_IP_PERIR, 16, 0, 0, "keypad"),
	GATE_DA(sclk_fimd1, "exynos4-fb.1", "sclk_fimd1", "div_fimd1",
			SRC_MASK_LCD1, 0, CLK_SET_RATE_PARENT, 0, "sclk_fimd"),
};

/* list of gate clocks supported in exynos4x12 soc */
struct samsung_gate_clock exynos4x12_gate_clks[] __initdata = {
	GATE(audss, "audss", "sclk_epll", E4X12_GATE_IP_MAUDIO, 0, 0, 0),
	GATE(mdnie0, "mdnie0", "aclk160", GATE_IP_LCD0, 2, 0, 0),
	GATE(rotator, "rotator", "aclk200", E4X12_GATE_IP_IMAGE, 1, 0, 0),
	GATE(mdma2, "mdma2", "aclk200", E4X12_GATE_IP_IMAGE, 2, 0, 0),
	GATE(smmu_mdma, "smmu_mdma", "aclk200", E4X12_GATE_IP_IMAGE, 5, 0, 0),
	GATE(mipi_hsi, "mipi_hsi", "aclk133", GATE_IP_FSYS, 10, 0, 0),
	GATE(chipid, "chipid", "aclk100", E4X12_GATE_IP_PERIR, 0, 0, 0),
	GATE(sysreg, "sysreg", "aclk100", E4X12_GATE_IP_PERIR, 1, 0, 0),
	GATE(hdmi_cec, "hdmi_cec", "aclk100", E4X12_GATE_IP_PERIR, 11, 0, 0),
	GATE(sclk_mdnie0, "sclk_mdnie0", "div_mdnie0",
			SRC_MASK_LCD0, 4, CLK_SET_RATE_PARENT, 0),
	GATE(sclk_mdnie_pwm0, "sclk_mdnie_pwm0", "div_mdnie_pwm_pre0",
			SRC_MASK_LCD0, 8, CLK_SET_RATE_PARENT, 0),
	GATE(sclk_mipihsi, "sclk_mipihsi", "div_mipihsi",
			SRC_MASK_FSYS, 24, CLK_SET_RATE_PARENT, 0),
	GATE(smmu_rotator, "smmu_rotator", "aclk200",
			E4X12_GATE_IP_IMAGE, 4, 0, 0),
	GATE_A(mct, "mct", "aclk100", E4X12_GATE_IP_PERIR, 13, 0, 0, "mct"),
	GATE_A(rtc, "rtc", "aclk100", E4X12_GATE_IP_PERIR, 15, 0, 0, "rtc"),
	GATE_A(keyif, "keyif", "aclk100",
			E4X12_GATE_IP_PERIR, 16, 0, 0, "keypad"),
	GATE_A(wdt, "watchdog", "aclk100",
			E4X12_GATE_IP_PERIR, 14, 0, 0, "watchdog"),
	GATE_DA(pcm0, "samsung-pcm.0", "pcm0", "aclk100",
			E4X12_GATE_IP_MAUDIO, 2, 0, 0, "pcm"),
	GATE_DA(i2s0, "samsung-i2s.0", "i2s0", "aclk100",
			E4X12_GATE_IP_MAUDIO, 3, 0, 0, "iis"),
};

#ifdef CONFIG_OF
static struct of_device_id exynos4_clk_ids[] __initdata = {
	{ .compatible = "samsung,exynos4210-clock",
			.data = (void *)EXYNOS4210, },
	{ .compatible = "samsung,exynos4412-clock",
			.data = (void *)EXYNOS4X12, },
	{ },
};
#endif

/*
 * The parent of the fin_pll clock is selected by the XOM[0] bit. This bit
 * resides in chipid register space, outside of the clock controller memory
 * mapped space. So to determine the parent of fin_pll clock, the chipid
 * controller is first remapped and the value of XOM[0] bit is read to
 * determine the parent clock.
 */
static void __init exynos4_clk_register_finpll(void)
{
	struct samsung_fixed_rate_clock fclk;
	struct device_node *np;
	struct clk *clk;
	void __iomem *chipid_base = S5P_VA_CHIPID;
	unsigned long xom, finpll_f = 24000000;
	char *parent_name;

	np = of_find_compatible_node(NULL, NULL, "samsung,exynos4210-chipid");
	if (np)
		chipid_base = of_iomap(np, 0);

	if (chipid_base) {
		xom = readl(chipid_base + 8);
		parent_name = xom & 1 ? "xusbxti" : "xxti";
		clk = clk_get(NULL, parent_name);
		if (IS_ERR(clk)) {
			pr_err("%s: failed to lookup parent clock %s, assuming "
				"fin_pll clock frequency is 24MHz\n", __func__,
				parent_name);
		} else {
			finpll_f = clk_get_rate(clk);
		}
	} else {
		pr_err("%s: failed to map chipid registers, assuming "
			"fin_pll clock frequency is 24MHz\n", __func__);
	}

	fclk.id = fin_pll;
	fclk.name = "fin_pll";
	fclk.parent_name = NULL;
	fclk.flags = CLK_IS_ROOT;
	fclk.fixed_rate = finpll_f;
	samsung_clk_register_fixed_rate(&fclk, 1);

	if (np)
		iounmap(chipid_base);
}

/*
 * This function allows non-dt platforms to specify the clock speed of the
 * xxti and xusbxti clocks. These clocks are then registered with the specified
 * clock speed.
 */
void __init exynos4_clk_register_fixed_ext(unsigned long xxti_f,
						unsigned long xusbxti_f)
{
	exynos4_fixed_rate_ext_clks[0].fixed_rate = xxti_f;
	exynos4_fixed_rate_ext_clks[1].fixed_rate = xusbxti_f;
	samsung_clk_register_fixed_rate(exynos4_fixed_rate_ext_clks,
			ARRAY_SIZE(exynos4_fixed_rate_ext_clks));
}

static __initdata struct of_device_id ext_clk_match[] = {
	{ .compatible = "samsung,clock-xxti", .data = (void *)0, },
	{ .compatible = "samsung,clock-xusbxti", .data = (void *)1, },
	{},
};

/* register exynos4 clocks */
void __init exynos4_clk_init(struct device_node *np)
{
	void __iomem *reg_base;
	struct clk *apll, *mpll, *epll, *vpll;
	u32 exynos4_soc;

	if (np) {
		const struct of_device_id *match;
		match = of_match_node(exynos4_clk_ids, np);
		exynos4_soc = (u32)match->data;

		reg_base = of_iomap(np, 0);
		if (!reg_base)
			panic("%s: failed to map registers\n", __func__);
	} else {
		reg_base = S5P_VA_CMU;
		if (soc_is_exynos4210())
			exynos4_soc = EXYNOS4210;
		else if (soc_is_exynos4212() || soc_is_exynos4412())
			exynos4_soc = EXYNOS4X12;
		else
			panic("%s: unable to determine soc\n", __func__);
	}

	samsung_clk_init(np, reg_base, nr_clks,
		exynos4_clk_regs, ARRAY_SIZE(exynos4_clk_regs));

	if (np)
		samsung_clk_of_register_fixed_ext(exynos4_fixed_rate_ext_clks,
			ARRAY_SIZE(exynos4_fixed_rate_ext_clks),
			ext_clk_match);

	exynos4_clk_register_finpll();

	if (exynos4_soc == EXYNOS4210) {
		apll = samsung_clk_register_pll45xx("fout_apll", "fin_pll",
					reg_base + APLL_CON0, pll_4508);
		mpll = samsung_clk_register_pll45xx("fout_mpll", "fin_pll",
					reg_base + E4210_MPLL_CON0, pll_4508);
		epll = samsung_clk_register_pll46xx("fout_epll", "fin_pll",
					reg_base + 0xc110, pll_4600);
		vpll = samsung_clk_register_pll46xx("fout_vpll", "mout_vpllsrc",
					reg_base + 0xc120, pll_4650c);
	} else {
		apll = samsung_clk_register_pll35xx("fout_apll", "fin_pll",
					reg_base + APLL_CON0);
		mpll = samsung_clk_register_pll35xx("fout_mpll", "fin_pll",
					reg_base + E4X12_MPLL_CON0);
		epll = samsung_clk_register_pll36xx("fout_epll", "fin_pll",
					reg_base + 0xc110);
		vpll = samsung_clk_register_pll36xx("fout_vpll", "fin_pll",
					reg_base + 0xc120);
	}

	samsung_clk_add_lookup(apll, fout_apll);
	samsung_clk_add_lookup(mpll, fout_mpll);
	samsung_clk_add_lookup(epll, fout_epll);
	samsung_clk_add_lookup(vpll, fout_vpll);

	samsung_clk_register_fixed_rate(exynos4_fixed_rate_clks,
			ARRAY_SIZE(exynos4_fixed_rate_clks));
	samsung_clk_register_mux(exynos4_mux_clks,
			ARRAY_SIZE(exynos4_mux_clks));
	samsung_clk_register_div(exynos4_div_clks,
			ARRAY_SIZE(exynos4_div_clks));
	samsung_clk_register_gate(exynos4_gate_clks,
			ARRAY_SIZE(exynos4_gate_clks));

	if (exynos4_soc == EXYNOS4210) {
		samsung_clk_register_fixed_rate(exynos4210_fixed_rate_clks,
			ARRAY_SIZE(exynos4210_fixed_rate_clks));
		samsung_clk_register_mux(exynos4210_mux_clks,
			ARRAY_SIZE(exynos4210_mux_clks));
		samsung_clk_register_div(exynos4210_div_clks,
			ARRAY_SIZE(exynos4210_div_clks));
		samsung_clk_register_gate(exynos4210_gate_clks,
			ARRAY_SIZE(exynos4210_gate_clks));
	} else {
		samsung_clk_register_mux(exynos4x12_mux_clks,
			ARRAY_SIZE(exynos4x12_mux_clks));
		samsung_clk_register_div(exynos4x12_div_clks,
			ARRAY_SIZE(exynos4x12_div_clks));
		samsung_clk_register_gate(exynos4x12_gate_clks,
			ARRAY_SIZE(exynos4x12_gate_clks));
	}

	pr_info("%s clocks: sclk_apll = %ld, sclk_mpll = %ld\n"
		"\tsclk_epll = %ld, sclk_vpll = %ld, arm_clk = %ld\n",
		exynos4_soc == EXYNOS4210 ? "Exynos4210" : "Exynos4x12",
		_get_rate("sclk_apll"),	_get_rate("sclk_mpll"),
		_get_rate("sclk_epll"), _get_rate("sclk_vpll"),
		_get_rate("arm_clk"));
}
CLK_OF_DECLARE(exynos4210_clk, "samsung,exynos4210-clock", exynos4_clk_init);
CLK_OF_DECLARE(exynos4412_clk, "samsung,exynos4412-clock", exynos4_clk_init);
