Merge tag 'clk-exynos-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers

From Kukjin Kim <kgene.kim@samsung.com>:

add suppport common clock framework for exynos

* tag 'clk-exynos-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (73 commits)
  ARM: EXYNOS: fix compilation error introduced due to common clock migration
  clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3}
  clk: exynos4: export clocks required for fimc-is
  clk: samsung: Fix compilation error
  clk: exynos5250: register display block gate clocks to common clock framework
  clk: exynos4: Add support for SoC-specific register save list
  clk: exynos4: Add missing registers to suspend save list
  clk: exynos4: Remove E4X12 prefix from SRC_DMC register
  clk: exynos4: Add E4210 prefix to GATE_IP_PERIR register
  clk: exynos4: Add E4210 prefix to LCD1 clock registers
  clk: exynos4: Remove SoC-specific registers from save list
  clk: exynos4: Use SRC_MASK_PERIL{0,1} definitions
  clk: exynos4: Define {E,V}PLL registers
  clk: exynos4: Add missing mout_sata on Exynos4210
  clk: exynos4: Add missing CMU_TOP and ISP clocks
  clk: exynos4: Add G3D clocks
  clk: exynos4: Add camera related clock definitions
  clk: exynos4: Export mout_core clock of Exynos4210
  clk: samsung: Remove unimplemented ops for pll
  clk: exynos4: Export clocks used by exynos cpufreq drivers
  ...

[arnd: add missing #address-cells property in mshc DT node]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

9 files changed, 2831 insertions, 0 deletions

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 79e98e41672..17e8dc4e417 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_ARCH_U8500)	+= ux500/
 obj-$(CONFIG_ARCH_VT8500)	+= clk-vt8500.o
 obj-$(CONFIG_ARCH_ZYNQ)		+= clk-zynq.o
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra/
+obj-$(CONFIG_PLAT_SAMSUNG)	+= samsung/
 
 obj-$(CONFIG_X86)		+= x86/
 
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
new file mode 100644
index 00000000000..b7c232e6742
--- /dev/null
+++ b/drivers/clk/samsung/Makefile
@@ -0,0 +1,8 @@
+#
+# Samsung Clock specific Makefile
+#
+
+obj-$(CONFIG_COMMON_CLK)	+= clk.o clk-pll.o
+obj-$(CONFIG_ARCH_EXYNOS4)	+= clk-exynos4.o
+obj-$(CONFIG_SOC_EXYNOS5250)	+= clk-exynos5250.o
+obj-$(CONFIG_SOC_EXYNOS5440)	+= clk-exynos5440.o
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
new file mode 100644
index 00000000000..71046694d9d
--- /dev/null
+++ b/drivers/clk/samsung/clk-exynos4.c
@@ -0,0 +1,1091 @@
+/*
+ * 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 DIV_LEFTBUS		0x4500
+#define GATE_IP_LEFTBUS		0x4800
+#define E4X12_GATE_IP_IMAGE	0x4930
+#define SRC_RIGHTBUS		0x8200
+#define DIV_RIGHTBUS		0x8500
+#define GATE_IP_RIGHTBUS	0x8800
+#define E4X12_GATE_IP_PERIR	0x8960
+#define EPLL_LOCK		0xc010
+#define VPLL_LOCK		0xc020
+#define EPLL_CON0		0xc110
+#define EPLL_CON1		0xc114
+#define EPLL_CON2		0xc118
+#define VPLL_CON0		0xc120
+#define VPLL_CON1		0xc124
+#define VPLL_CON2		0xc128
+#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 E4210_SRC_LCD1		0xc238
+#define E4X12_SRC_ISP		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_TOP		0xc310
+#define SRC_MASK_CAM		0xc320
+#define SRC_MASK_TV		0xc324
+#define SRC_MASK_LCD0		0xc334
+#define E4210_SRC_MASK_LCD1	0xc338
+#define E4X12_SRC_MASK_ISP	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 E4210_GATE_IP_LCD1	0xc938
+#define E4X12_GATE_IP_ISP	0xc938
+#define E4X12_GATE_IP_MAUDIO	0xc93c
+#define GATE_IP_FSYS		0xc940
+#define GATE_IP_GPS		0xc94c
+#define GATE_IP_PERIL		0xc950
+#define E4210_GATE_IP_PERIR	0xc960
+#define GATE_BLOCK		0xc970
+#define E4X12_MPLL_CON0		0x10108
+#define SRC_DMC			0x10200
+#define SRC_MASK_DMC		0x10300
+#define DIV_DMC0		0x10500
+#define DIV_DMC1		0x10504
+#define GATE_IP_DMC		0x10900
+#define APLL_CON0		0x14100
+#define E4210_MPLL_CON0		0x14108
+#define SRC_CPU			0x14200
+#define DIV_CPU0		0x14500
+#define DIV_CPU1		0x14504
+#define GATE_SCLK_CPU		0x14800
+#define GATE_IP_CPU		0x14900
+#define E4X12_DIV_ISP0		0x18300
+#define E4X12_DIV_ISP1		0x18304
+#define E4X12_GATE_ISP0		0x18800
+#define E4X12_GATE_ISP1		0x18804
+
+/* 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, sclk_g3d, sclk_pwm_isp,
+	sclk_spi0_isp, sclk_spi1_isp, sclk_uart_isp,
+
+	/* 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, pixelasyncm0, pixelasyncm1, fimc_lite0,
+	fimc_lite1, ppmuispx, ppmuispmx, fimc_isp, fimc_drc, fimc_fd, mcuisp,
+	gicisp, smmu_isp, smmu_drc, smmu_fd, smmu_lite0, smmu_lite1, mcuctl_isp,
+	mpwm_isp, i2c0_isp, i2c1_isp, mtcadc_isp, pwm_isp, wdt_isp, uart_isp,
+	asyncaxim, smmu_ispcx, spi0_isp, spi1_isp, pwm_isp_sclk, spi0_isp_sclk,
+	spi1_isp_sclk, uart_isp_sclk,
+
+	/* mux clocks */
+	mout_fimc0 = 384, mout_fimc1, mout_fimc2, mout_fimc3, mout_cam0,
+	mout_cam1, mout_csis0, mout_csis1, mout_g3d0, mout_g3d1, mout_g3d,
+	aclk400_mcuisp,
+
+	/* div clocks */
+	div_isp0 = 450, div_isp1, div_mcuisp0, div_mcuisp1, div_aclk200,
+	div_aclk400_mcuisp,
+
+	nr_clks,
+};
+
+/*
+ * list of controller registers to be saved and restored during a
+ * suspend/resume cycle.
+ */
+static __initdata unsigned long exynos4210_clk_save[] = {
+	E4210_SRC_IMAGE,
+	E4210_SRC_LCD1,
+	E4210_SRC_MASK_LCD1,
+	E4210_DIV_LCD1,
+	E4210_GATE_IP_IMAGE,
+	E4210_GATE_IP_LCD1,
+	E4210_GATE_IP_PERIR,
+	E4210_MPLL_CON0,
+};
+
+static __initdata unsigned long exynos4x12_clk_save[] = {
+	E4X12_GATE_IP_IMAGE,
+	E4X12_GATE_IP_PERIR,
+	E4X12_SRC_CAM1,
+	E4X12_DIV_ISP,
+	E4X12_DIV_CAM1,
+	E4X12_MPLL_CON0,
+};
+
+static __initdata unsigned long exynos4_clk_regs[] = {
+	SRC_LEFTBUS,
+	DIV_LEFTBUS,
+	GATE_IP_LEFTBUS,
+	SRC_RIGHTBUS,
+	DIV_RIGHTBUS,
+	GATE_IP_RIGHTBUS,
+	EPLL_CON0,
+	EPLL_CON1,
+	EPLL_CON2,
+	VPLL_CON0,
+	VPLL_CON1,
+	VPLL_CON2,
+	SRC_TOP0,
+	SRC_TOP1,
+	SRC_CAM,
+	SRC_TV,
+	SRC_MFC,
+	SRC_G3D,
+	SRC_LCD0,
+	SRC_MAUDIO,
+	SRC_FSYS,
+	SRC_PERIL0,
+	SRC_PERIL1,
+	SRC_MASK_TOP,
+	SRC_MASK_CAM,
+	SRC_MASK_TV,
+	SRC_MASK_LCD0,
+	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,
+	DIV_MAUDIO,
+	DIV_FSYS0,
+	DIV_FSYS1,
+	DIV_FSYS2,
+	DIV_FSYS3,
+	DIV_PERIL0,
+	DIV_PERIL1,
+	DIV_PERIL2,
+	DIV_PERIL3,
+	DIV_PERIL4,
+	DIV_PERIL5,
+	GATE_SCLK_CAM,
+	GATE_IP_CAM,
+	GATE_IP_TV,
+	GATE_IP_MFC,
+	GATE_IP_G3D,
+	GATE_IP_LCD0,
+	GATE_IP_FSYS,
+	GATE_IP_GPS,
+	GATE_IP_PERIL,
+	GATE_BLOCK,
+	SRC_MASK_DMC,
+	SRC_DMC,
+	DIV_DMC0,
+	DIV_DMC1,
+	GATE_IP_DMC,
+	APLL_CON0,
+	SRC_CPU,
+	DIV_CPU0,
+	DIV_CPU1,
+	GATE_SCLK_CPU,
+	GATE_IP_CPU,
+};
+
+/* 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", };
+PNAME(mout_onenand_p)  = {"aclk133", "aclk160", };
+PNAME(mout_onenand1_p) = {"mout_onenand", "sclk_vpll", };
+
+/* 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", };
+PNAME(mout_user_aclk400_mcuisp_p4x12) = {"fin_pll", "div_aclk400_mcuisp", };
+PNAME(mout_user_aclk200_p4x12) = {"fin_pll", "div_aclk200", };
+PNAME(mout_user_aclk266_gps_p4x12) = {"fin_pll", "div_aclk266_gps", };
+
+/* 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_F(mout_g3d1, "mout_g3d1", sclk_evpll_p, SRC_G3D, 4, 1,
+			CLK_SET_RATE_PARENT, 0),
+	MUX_F(mout_g3d, "mout_g3d", mout_g3d_p, SRC_G3D, 8, 1,
+			CLK_SET_RATE_PARENT, 0),
+	MUX(none, "mout_spdif", mout_spdif_p, SRC_PERIL1, 8, 2),
+	MUX(none, "mout_onenand1", mout_onenand1_p, SRC_TOP0, 0, 1),
+	MUX_A(sclk_epll, "sclk_epll", mout_epll_p, SRC_TOP0, 4, 1, "sclk_epll"),
+	MUX(none, "mout_onenand", mout_onenand_p, SRC_TOP0, 28, 1),
+};
+
+/* 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, E4210_SRC_LCD1, 0, 4),
+	MUX(none, "mout_mipi1", group1_p4210, E4210_SRC_LCD1, 12, 4),
+	MUX_A(sclk_mpll, "sclk_mpll", mout_mpll_p, SRC_CPU, 8, 1, "sclk_mpll"),
+	MUX_A(mout_core, "mout_core", mout_core_p4210,
+			SRC_CPU, 16, 1, "mout_core"),
+	MUX_A(sclk_vpll, "sclk_vpll", sclk_vpll_p4210,
+			SRC_TOP0, 8, 1, "sclk_vpll"),
+	MUX(mout_fimc0, "mout_fimc0", group1_p4210, SRC_CAM, 0, 4),
+	MUX(mout_fimc1, "mout_fimc1", group1_p4210, SRC_CAM, 4, 4),
+	MUX(mout_fimc2, "mout_fimc2", group1_p4210, SRC_CAM, 8, 4),
+	MUX(mout_fimc3, "mout_fimc3", group1_p4210, SRC_CAM, 12, 4),
+	MUX(mout_cam0, "mout_cam0", group1_p4210, SRC_CAM, 16, 4),
+	MUX(mout_cam1, "mout_cam1", group1_p4210, SRC_CAM, 20, 4),
+	MUX(mout_csis0, "mout_csis0", group1_p4210, SRC_CAM, 24, 4),
+	MUX(mout_csis1, "mout_csis1", group1_p4210, SRC_CAM, 28, 4),
+	MUX(none, "mout_mfc0", sclk_ampll_p4210, SRC_MFC, 0, 1),
+	MUX_F(mout_g3d0, "mout_g3d0", sclk_ampll_p4210, SRC_G3D, 0, 1,
+			CLK_SET_RATE_PARENT, 0),
+	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_sata", sclk_ampll_p4210, SRC_FSYS, 24, 1),
+	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(none, "mout_aclk266_gps", aclk_p4412, SRC_TOP1, 4, 1),
+	MUX(none, "mout_aclk400_mcuisp", aclk_p4412, SRC_TOP1, 8, 1),
+	MUX(mout_mpll_user_t, "mout_mpll_user_t", mout_mpll_user_p4x12,
+			SRC_TOP1, 12, 1),
+	MUX(none, "mout_user_aclk266_gps", mout_user_aclk266_gps_p4x12,
+			SRC_TOP1, 16, 1),
+	MUX(aclk200, "aclk200", mout_user_aclk200_p4x12, SRC_TOP1, 20, 1),
+	MUX(aclk400_mcuisp, "aclk400_mcuisp", mout_user_aclk400_mcuisp_p4x12,
+			SRC_TOP1, 24, 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,
+			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(mout_fimc0, "mout_fimc0", group1_p4x12, SRC_CAM, 0, 4),
+	MUX(mout_fimc1, "mout_fimc1", group1_p4x12, SRC_CAM, 4, 4),
+	MUX(mout_fimc2, "mout_fimc2", group1_p4x12, SRC_CAM, 8, 4),
+	MUX(mout_fimc3, "mout_fimc3", group1_p4x12, SRC_CAM, 12, 4),
+	MUX(mout_cam0, "mout_cam0", group1_p4x12, SRC_CAM, 16, 4),
+	MUX(mout_cam1, "mout_cam1", group1_p4x12, SRC_CAM, 20, 4),
+	MUX(mout_csis0, "mout_csis0", group1_p4x12, SRC_CAM, 24, 4),
+	MUX(mout_csis1, "mout_csis1", group1_p4x12, SRC_CAM, 28, 4),
+	MUX(none, "mout_mfc0", sclk_ampll_p4x12, SRC_MFC, 0, 1),
+	MUX_F(mout_g3d0, "mout_g3d0", sclk_ampll_p4x12, SRC_G3D, 0, 1,
+			CLK_SET_RATE_PARENT, 0),
+	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),
+	MUX(none, "mout_pwm_isp", group1_p4x12, E4X12_SRC_ISP, 0, 4),
+	MUX(none, "mout_spi0_isp", group1_p4x12, E4X12_SRC_ISP, 4, 4),
+	MUX(none, "mout_spi1_isp", group1_p4x12, E4X12_SRC_ISP, 8, 4),
+	MUX(none, "mout_uart_isp", group1_p4x12, E4X12_SRC_ISP, 12, 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_F(none, "div_g3d", "mout_g3d", DIV_G3D, 0, 4,
+			CLK_SET_RATE_PARENT, 0),
+	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(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(none, "div_onenand", "mout_onenand1", DIV_TOP, 16, 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(aclk200, "aclk200", "mout_aclk200", DIV_TOP, 0, 3),
+	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),
+	DIV(div_aclk200, "div_aclk200", "mout_aclk200", DIV_TOP, 0, 3),
+	DIV(none, "div_aclk266_gps", "mout_aclk266_gps", DIV_TOP, 20, 3),
+	DIV(div_aclk400_mcuisp, "div_aclk400_mcuisp", "mout_aclk400_mcuisp",
+						DIV_TOP, 24, 3),
+	DIV(none, "div_pwm_isp", "mout_pwm_isp", E4X12_DIV_ISP, 0, 4),
+	DIV(none, "div_spi0_isp", "mout_spi0_isp", E4X12_DIV_ISP, 4, 4),
+	DIV(none, "div_spi0_isp_pre", "div_spi0_isp", E4X12_DIV_ISP, 8, 8),
+	DIV(none, "div_spi1_isp", "mout_spi1_isp", E4X12_DIV_ISP, 16, 4),
+	DIV(none, "div_spi1_isp_pre", "div_spi1_isp", E4X12_DIV_ISP, 20, 8),
+	DIV(none, "div_uart_isp", "mout_uart_isp", E4X12_DIV_ISP, 28, 4),
+	DIV(div_isp0, "div_isp0", "aclk200", E4X12_DIV_ISP0, 0, 3),
+	DIV(div_isp1, "div_isp1", "aclk200", E4X12_DIV_ISP0, 4, 3),
+	DIV(none, "div_mpwm", "div_isp1", E4X12_DIV_ISP1, 0, 3),
+	DIV(div_mcuisp0, "div_mcuisp0", "aclk400_mcuisp", E4X12_DIV_ISP1, 4, 3),
+	DIV(div_mcuisp1, "div_mcuisp1", "div_mcuisp0", E4X12_DIV_ISP1, 8, 3),
+};
+
+/* 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", SRC_MASK_PERIL1, 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", E4210_GATE_IP_LCD1, 0, 0, 0),
+	GATE(mie1, "mie1", "aclk160", E4210_GATE_IP_LCD1, 1, 0, 0),
+	GATE(dsim1, "dsim1", "aclk160", E4210_GATE_IP_LCD1, 3, 0, 0),
+	GATE(smmu_fimd1, "smmu_fimd1", "aclk160", E4210_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(sclk_g3d, "sclk_g3d", "div_g3d", GATE_IP_G3D, 0,
+			CLK_SET_RATE_PARENT, 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", SRC_MASK_PERIL1, 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",
+			SRC_MASK_PERIL0, 0, CLK_SET_RATE_PARENT,
+			0, "clk_uart_baud0"),
+	GATE_DA(sclk_uart1, "exynos4210-uart.1", "uclk1", "div_uart1",
+			SRC_MASK_PERIL0, 4, CLK_SET_RATE_PARENT,
+			0, "clk_uart_baud0"),
+	GATE_DA(sclk_uart2, "exynos4210-uart.2", "uclk2", "div_uart2",
+			SRC_MASK_PERIL0, 8, CLK_SET_RATE_PARENT,
+			0, "clk_uart_baud0"),
+	GATE_DA(sclk_uart3, "exynos4210-uart.3", "uclk3", "div_uart3",
+			SRC_MASK_PERIL0, 12, CLK_SET_RATE_PARENT,
+			0, "clk_uart_baud0"),
+	GATE_DA(sclk_uart4, "exynos4210-uart.4", "uclk4", "div_uart4",
+			SRC_MASK_PERIL0, 16, CLK_SET_RATE_PARENT,
+			0, "clk_uart_baud0"),
+	GATE(sclk_audio2, "sclk_audio2", "div_audio2", SRC_MASK_PERIL1, 4,
+			CLK_SET_RATE_PARENT, 0),
+	GATE_DA(sclk_spi0, "exynos4210-spi.0", "sclk_spi0", "div_spi_pre0",
+			SRC_MASK_PERIL1, 16, CLK_SET_RATE_PARENT,
+			0, "spi_busclk0"),
+	GATE_DA(sclk_spi1, "exynos4210-spi.1", "sclk_spi1", "div_spi_pre1",
+			SRC_MASK_PERIL1, 20, CLK_SET_RATE_PARENT,
+			0, "spi_busclk0"),
+	GATE_DA(sclk_spi2, "exynos4210-spi.2", "sclk_spi2", "div_spi_pre2",
+			SRC_MASK_PERIL1, 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(pixelasyncm0, "pxl_async0", "aclk160", GATE_IP_CAM, 17, 0, 0),
+	GATE(pixelasyncm1, "pxl_async1", "aclk160", GATE_IP_CAM, 18, 0, 0),
+	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", E4210_GATE_IP_PERIR, 0, 0, 0),
+	GATE(sysreg, "sysreg", "aclk100", E4210_GATE_IP_PERIR, 0, 0, 0),
+	GATE(hdmi_cec, "hdmi_cec", "aclk100", E4210_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",
+			E4210_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", E4210_GATE_IP_PERIR, 13, 0, 0, "mct"),
+	GATE_A(wdt, "watchdog", "aclk100", E4210_GATE_IP_PERIR, 14, 0, 0, "watchdog"),
+	GATE_A(rtc, "rtc", "aclk100", E4210_GATE_IP_PERIR, 15, 0, 0, "rtc"),
+	GATE_A(keyif, "keyif", "aclk100", E4210_GATE_IP_PERIR, 16, 0, 0, "keypad"),
+	GATE_DA(sclk_fimd1, "exynos4-fb.1", "sclk_fimd1", "div_fimd1",
+			E4210_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(sclk_pwm_isp, "sclk_pwm_isp", "div_pwm_isp",
+			E4X12_SRC_MASK_ISP, 0, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_spi0_isp, "sclk_spi0_isp", "div_spi0_isp_pre",
+			E4X12_SRC_MASK_ISP, 4, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_spi1_isp, "sclk_spi1_isp", "div_spi1_isp_pre",
+			E4X12_SRC_MASK_ISP, 8, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_uart_isp, "sclk_uart_isp", "div_uart_isp",
+			E4X12_SRC_MASK_ISP, 12, CLK_SET_RATE_PARENT, 0),
+	GATE(pwm_isp_sclk, "pwm_isp_sclk", "sclk_pwm_isp",
+			E4X12_GATE_IP_ISP, 0, 0, 0),
+	GATE(spi0_isp_sclk, "spi0_isp_sclk", "sclk_spi0_isp",
+			E4X12_GATE_IP_ISP, 1, 0, 0),
+	GATE(spi1_isp_sclk, "spi1_isp_sclk", "sclk_spi1_isp",
+			E4X12_GATE_IP_ISP, 2, 0, 0),
+	GATE(uart_isp_sclk, "uart_isp_sclk", "sclk_uart_isp",
+			E4X12_GATE_IP_ISP, 3, 0, 0),
+	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"),
+	GATE(fimc_isp, "isp", "aclk200", E4X12_GATE_ISP0, 0,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(fimc_drc, "drc", "aclk200", E4X12_GATE_ISP0, 1,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(fimc_fd, "fd", "aclk200", E4X12_GATE_ISP0, 2,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(fimc_lite0, "lite0", "aclk200", E4X12_GATE_ISP0, 3,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(fimc_lite1, "lite1", "aclk200", E4X12_GATE_ISP0, 4,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(mcuisp, "mcuisp", "aclk200", E4X12_GATE_ISP0, 5,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(gicisp, "gicisp", "aclk200", E4X12_GATE_ISP0, 7,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(smmu_isp, "smmu_isp", "aclk200", E4X12_GATE_ISP0, 8,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(smmu_drc, "smmu_drc", "aclk200", E4X12_GATE_ISP0, 9,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(smmu_fd, "smmu_fd", "aclk200", E4X12_GATE_ISP0, 10,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(smmu_lite0, "smmu_lite0", "aclk200", E4X12_GATE_ISP0, 11,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(smmu_lite1, "smmu_lite1", "aclk200", E4X12_GATE_ISP0, 12,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(ppmuispmx, "ppmuispmx", "aclk200", E4X12_GATE_ISP0, 20,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(ppmuispx, "ppmuispx", "aclk200", E4X12_GATE_ISP0, 21,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(mcuctl_isp, "mcuctl_isp", "aclk200", E4X12_GATE_ISP0, 23,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(mpwm_isp, "mpwm_isp", "aclk200", E4X12_GATE_ISP0, 24,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(i2c0_isp, "i2c0_isp", "aclk200", E4X12_GATE_ISP0, 25,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(i2c1_isp, "i2c1_isp", "aclk200", E4X12_GATE_ISP0, 26,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(mtcadc_isp, "mtcadc_isp", "aclk200", E4X12_GATE_ISP0, 27,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(pwm_isp, "pwm_isp", "aclk200", E4X12_GATE_ISP0, 28,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(wdt_isp, "wdt_isp", "aclk200", E4X12_GATE_ISP0, 30,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(uart_isp, "uart_isp", "aclk200", E4X12_GATE_ISP0, 31,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(asyncaxim, "asyncaxim", "aclk200", E4X12_GATE_ISP1, 0,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(smmu_ispcx, "smmu_ispcx", "aclk200", E4X12_GATE_ISP1, 4,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(spi0_isp, "spi0_isp", "aclk200", E4X12_GATE_ISP1, 12,
+			CLK_IGNORE_UNUSED, 0),
+	GATE(spi1_isp, "spi1_isp", "aclk200", E4X12_GATE_ISP1, 13,
+			CLK_IGNORE_UNUSED, 0),
+};
+
+#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__);
+	}
+
+	if (exynos4_soc == EXYNOS4210)
+		samsung_clk_init(np, reg_base, nr_clks,
+			exynos4_clk_regs, ARRAY_SIZE(exynos4_clk_regs),
+			exynos4210_clk_save, ARRAY_SIZE(exynos4210_clk_save));
+	else
+		samsung_clk_init(np, reg_base, nr_clks,
+			exynos4_clk_regs, ARRAY_SIZE(exynos4_clk_regs),
+			exynos4x12_clk_save, ARRAY_SIZE(exynos4x12_clk_save));
+
+	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 + EPLL_CON0, pll_4600);
+		vpll = samsung_clk_register_pll46xx("fout_vpll", "mout_vpllsrc",
+					reg_base + VPLL_CON0, 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 + EPLL_CON0);
+		vpll = samsung_clk_register_pll36xx("fout_vpll", "fin_pll",
+					reg_base + VPLL_CON0);
+	}
+
+	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);
diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c
new file mode 100644
index 00000000000..7290faa518d
--- /dev/null
+++ b/drivers/clk/samsung/clk-exynos5250.c
@@ -0,0 +1,523 @@
+/*
+ * 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 Exynos5250 SoC.
+*/
+
+#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"
+
+#define SRC_CPU			0x200
+#define DIV_CPU0		0x500
+#define SRC_CORE1		0x4204
+#define SRC_TOP0		0x10210
+#define SRC_TOP2		0x10218
+#define SRC_GSCL		0x10220
+#define SRC_DISP1_0		0x1022c
+#define SRC_MAU			0x10240
+#define SRC_FSYS		0x10244
+#define SRC_GEN			0x10248
+#define SRC_PERIC0		0x10250
+#define SRC_PERIC1		0x10254
+#define SRC_MASK_GSCL		0x10320
+#define SRC_MASK_DISP1_0	0x1032c
+#define SRC_MASK_MAU		0x10334
+#define SRC_MASK_FSYS		0x10340
+#define SRC_MASK_GEN		0x10344
+#define SRC_MASK_PERIC0		0x10350
+#define SRC_MASK_PERIC1		0x10354
+#define DIV_TOP0		0x10510
+#define DIV_TOP1		0x10514
+#define DIV_GSCL		0x10520
+#define DIV_DISP1_0		0x1052c
+#define DIV_GEN			0x1053c
+#define DIV_MAU			0x10544
+#define DIV_FSYS0		0x10548
+#define DIV_FSYS1		0x1054c
+#define DIV_FSYS2		0x10550
+#define DIV_PERIC0		0x10558
+#define DIV_PERIC1		0x1055c
+#define DIV_PERIC2		0x10560
+#define DIV_PERIC3		0x10564
+#define DIV_PERIC4		0x10568
+#define DIV_PERIC5		0x1056c
+#define GATE_IP_GSCL		0x10920
+#define GATE_IP_MFC		0x1092c
+#define GATE_IP_GEN		0x10934
+#define GATE_IP_FSYS		0x10944
+#define GATE_IP_PERIC		0x10950
+#define GATE_IP_PERIS		0x10960
+#define SRC_CDREX		0x20200
+#define PLL_DIV2_SEL		0x20a24
+#define GATE_IP_DISP1		0x10928
+
+/*
+ * 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 exynos5250_clks {
+	none,
+
+	/* core clocks */
+	fin_pll,
+
+	/* gate for special clocks (sclk) */
+	sclk_cam_bayer = 128, sclk_cam0, sclk_cam1, sclk_gscl_wa, sclk_gscl_wb,
+	sclk_fimd1, sclk_mipi1, sclk_dp, sclk_hdmi, sclk_pixel, sclk_audio0,
+	sclk_mmc0, sclk_mmc1, sclk_mmc2, sclk_mmc3, sclk_sata, sclk_usb3,
+	sclk_jpeg, sclk_uart0, sclk_uart1, sclk_uart2, sclk_uart3, sclk_pwm,
+	sclk_audio1, sclk_audio2, sclk_spdif, sclk_spi0, sclk_spi1, sclk_spi2,
+
+	/* gate clocks */
+	gscl0 = 256, gscl1, gscl2, gscl3, gscl_wa, gscl_wb, smmu_gscl0,
+	smmu_gscl1, smmu_gscl2, smmu_gscl3, mfc, smmu_mfcl, smmu_mfcr, rotator,
+	jpeg, mdma1, smmu_rotator, smmu_jpeg, smmu_mdma1, pdma0, pdma1, sata,
+	usbotg, mipi_hsi, sdmmc0, sdmmc1, sdmmc2, sdmmc3, sromc, usb2, usb3,
+	sata_phyctrl, sata_phyi2c, uart0, uart1, uart2,	uart3, uart4, i2c0,
+	i2c1, i2c2, i2c3, i2c4, i2c5, i2c6, i2c7, i2c_hdmi, adc, spi0, spi1,
+	spi2, i2s1, i2s2, pcm1, pcm2, pwm, spdif, ac97, hsi2c0, hsi2c1, hsi2c2,
+	hsi2c3, chipid, sysreg, pmu, cmu_top, cmu_core, cmu_mem, tzpc0, tzpc1,
+	tzpc2, tzpc3, tzpc4, tzpc5, tzpc6, tzpc7, tzpc8, tzpc9, hdmi_cec, mct,
+	wdt, rtc, tmu, fimd1, mie1, dsim0, dp, mixer, hdmi,
+
+	nr_clks,
+};
+
+/*
+ * list of controller registers to be saved and restored during a
+ * suspend/resume cycle.
+ */
+static __initdata unsigned long exynos5250_clk_regs[] = {
+	SRC_CPU,
+	DIV_CPU0,
+	SRC_CORE1,
+	SRC_TOP0,
+	SRC_TOP2,
+	SRC_GSCL,
+	SRC_DISP1_0,
+	SRC_MAU,
+	SRC_FSYS,
+	SRC_GEN,
+	SRC_PERIC0,
+	SRC_PERIC1,
+	SRC_MASK_GSCL,
+	SRC_MASK_DISP1_0,
+	SRC_MASK_MAU,
+	SRC_MASK_FSYS,
+	SRC_MASK_GEN,
+	SRC_MASK_PERIC0,
+	SRC_MASK_PERIC1,
+	DIV_TOP0,
+	DIV_TOP1,
+	DIV_GSCL,
+	DIV_DISP1_0,
+	DIV_GEN,
+	DIV_MAU,
+	DIV_FSYS0,
+	DIV_FSYS1,
+	DIV_FSYS2,
+	DIV_PERIC0,
+	DIV_PERIC1,
+	DIV_PERIC2,
+	DIV_PERIC3,
+	DIV_PERIC4,
+	DIV_PERIC5,
+	GATE_IP_GSCL,
+	GATE_IP_MFC,
+	GATE_IP_GEN,
+	GATE_IP_FSYS,
+	GATE_IP_PERIC,
+	GATE_IP_PERIS,
+	SRC_CDREX,
+	PLL_DIV2_SEL,
+	GATE_IP_DISP1,
+};
+
+/* list of all parent clock list */
+PNAME(mout_apll_p)	= { "fin_pll", "fout_apll", };
+PNAME(mout_cpu_p)	= { "mout_apll", "mout_mpll", };
+PNAME(mout_mpll_fout_p)	= { "fout_mplldiv2", "fout_mpll" };
+PNAME(mout_mpll_p)	= { "fin_pll", "mout_mpll_fout" };
+PNAME(mout_bpll_fout_p)	= { "fout_bplldiv2", "fout_bpll" };
+PNAME(mout_bpll_p)	= { "fin_pll", "mout_bpll_fout" };
+PNAME(mout_vpllsrc_p)	= { "fin_pll", "sclk_hdmi27m" };
+PNAME(mout_vpll_p)	= { "mout_vpllsrc", "fout_vpll" };
+PNAME(mout_cpll_p)	= { "fin_pll", "fout_cpll" };
+PNAME(mout_epll_p)	= { "fin_pll", "fout_epll" };
+PNAME(mout_mpll_user_p)	= { "fin_pll", "sclk_mpll" };
+PNAME(mout_bpll_user_p)	= { "fin_pll", "sclk_bpll" };
+PNAME(mout_aclk166_p)	= { "sclk_cpll", "sclk_mpll_user" };
+PNAME(mout_aclk200_p)	= { "sclk_mpll_user", "sclk_bpll_user" };
+PNAME(mout_hdmi_p)	= { "div_hdmi_pixel", "sclk_hdmiphy" };
+PNAME(mout_usb3_p)	= { "sclk_mpll_user", "sclk_cpll" };
+PNAME(mout_group1_p)	= { "fin_pll", "fin_pll", "sclk_hdmi27m",
+				"sclk_dptxphy", "sclk_uhostphy", "sclk_hdmiphy",
+				"sclk_mpll_user", "sclk_epll", "sclk_vpll",
+				"sclk_cpll" };
+PNAME(mout_audio0_p)	= { "cdclk0", "fin_pll", "sclk_hdmi27m", "sclk_dptxphy",
+				"sclk_uhostphy", "sclk_hdmiphy",
+				"sclk_mpll_user", "sclk_epll", "sclk_vpll",
+				"sclk_cpll" };
+PNAME(mout_audio1_p)	= { "cdclk1", "fin_pll", "sclk_hdmi27m", "sclk_dptxphy",
+				"sclk_uhostphy", "sclk_hdmiphy",
+				"sclk_mpll_user", "sclk_epll", "sclk_vpll",
+				"sclk_cpll" };
+PNAME(mout_audio2_p)	= { "cdclk2", "fin_pll", "sclk_hdmi27m", "sclk_dptxphy",
+				"sclk_uhostphy", "sclk_hdmiphy",
+				"sclk_mpll_user", "sclk_epll", "sclk_vpll",
+				"sclk_cpll" };
+PNAME(mout_spdif_p)	= { "sclk_audio0", "sclk_audio1", "sclk_audio2",
+				"spdif_extclk" };
+
+/* fixed rate clocks generated outside the soc */
+struct samsung_fixed_rate_clock exynos5250_fixed_rate_ext_clks[] __initdata = {
+	FRATE(fin_pll, "fin_pll", NULL, CLK_IS_ROOT, 0),
+};
+
+/* fixed rate clocks generated inside the soc */
+struct samsung_fixed_rate_clock exynos5250_fixed_rate_clks[] __initdata = {
+	FRATE(none, "sclk_hdmiphy", NULL, CLK_IS_ROOT, 24000000),
+	FRATE(none, "sclk_hdmi27m", NULL, CLK_IS_ROOT, 27000000),
+	FRATE(none, "sclk_dptxphy", NULL, CLK_IS_ROOT, 24000000),
+	FRATE(none, "sclk_uhostphy", NULL, CLK_IS_ROOT, 48000000),
+};
+
+struct samsung_fixed_factor_clock exynos5250_fixed_factor_clks[] __initdata = {
+	FFACTOR(none, "fout_mplldiv2", "fout_mpll", 1, 2, 0),
+	FFACTOR(none, "fout_bplldiv2", "fout_bpll", 1, 2, 0),
+};
+
+struct samsung_mux_clock exynos5250_mux_clks[] __initdata = {
+	MUX(none, "mout_apll", mout_apll_p, SRC_CPU, 0, 1),
+	MUX(none, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1),
+	MUX(none, "mout_mpll_fout", mout_mpll_fout_p, PLL_DIV2_SEL, 4, 1),
+	MUX(none, "sclk_mpll", mout_mpll_p, SRC_CORE1, 8, 1),
+	MUX(none, "mout_bpll_fout", mout_bpll_fout_p, PLL_DIV2_SEL, 0, 1),
+	MUX(none, "sclk_bpll", mout_bpll_p, SRC_CDREX, 0, 1),
+	MUX(none, "mout_vpllsrc", mout_vpllsrc_p, SRC_TOP2, 0, 1),
+	MUX(none, "sclk_vpll", mout_vpll_p, SRC_TOP2, 16, 1),
+	MUX(none, "sclk_epll", mout_epll_p, SRC_TOP2, 12, 1),
+	MUX(none, "sclk_cpll", mout_cpll_p, SRC_TOP2, 8, 1),
+	MUX(none, "sclk_mpll_user", mout_mpll_user_p, SRC_TOP2, 20, 1),
+	MUX(none, "sclk_bpll_user", mout_bpll_user_p, SRC_TOP2, 24, 1),
+	MUX(none, "mout_aclk166", mout_aclk166_p, SRC_TOP0, 8, 1),
+	MUX(none, "mout_aclk333", mout_aclk166_p, SRC_TOP0, 16, 1),
+	MUX(none, "mout_aclk200", mout_aclk200_p, SRC_TOP0, 12, 1),
+	MUX(none, "mout_cam_bayer", mout_group1_p, SRC_GSCL, 12, 4),
+	MUX(none, "mout_cam0", mout_group1_p, SRC_GSCL, 16, 4),
+	MUX(none, "mout_cam1", mout_group1_p, SRC_GSCL, 20, 4),
+	MUX(none, "mout_gscl_wa", mout_group1_p, SRC_GSCL, 24, 4),
+	MUX(none, "mout_gscl_wb", mout_group1_p, SRC_GSCL, 28, 4),
+	MUX(none, "mout_fimd1", mout_group1_p, SRC_DISP1_0, 0, 4),
+	MUX(none, "mout_mipi1", mout_group1_p, SRC_DISP1_0, 12, 4),
+	MUX(none, "mout_dp", mout_group1_p, SRC_DISP1_0, 16, 4),
+	MUX(none, "mout_hdmi", mout_hdmi_p, SRC_DISP1_0, 20, 1),
+	MUX(none, "mout_audio0", mout_audio0_p, SRC_MAU, 0, 4),
+	MUX(none, "mout_mmc0", mout_group1_p, SRC_FSYS, 0, 4),
+	MUX(none, "mout_mmc1", mout_group1_p, SRC_FSYS, 4, 4),
+	MUX(none, "mout_mmc2", mout_group1_p, SRC_FSYS, 8, 4),
+	MUX(none, "mout_mmc3", mout_group1_p, SRC_FSYS, 12, 4),
+	MUX(none, "mout_sata", mout_aclk200_p, SRC_FSYS, 24, 1),
+	MUX(none, "mout_usb3", mout_usb3_p, SRC_FSYS, 28, 1),
+	MUX(none, "mout_jpeg", mout_group1_p, SRC_GEN, 0, 4),
+	MUX(none, "mout_uart0", mout_group1_p, SRC_PERIC0, 0, 4),
+	MUX(none, "mout_uart1", mout_group1_p, SRC_PERIC0, 4, 4),
+	MUX(none, "mout_uart2", mout_group1_p, SRC_PERIC0, 8, 4),
+	MUX(none, "mout_uart3", mout_group1_p, SRC_PERIC0, 12, 4),
+	MUX(none, "mout_pwm", mout_group1_p, SRC_PERIC0, 24, 4),
+	MUX(none, "mout_audio1", mout_audio1_p, SRC_PERIC1, 0, 4),
+	MUX(none, "mout_audio2", mout_audio2_p, SRC_PERIC1, 4, 4),
+	MUX(none, "mout_spdif", mout_spdif_p, SRC_PERIC1, 8, 2),
+	MUX(none, "mout_spi0", mout_group1_p, SRC_PERIC1, 16, 4),
+	MUX(none, "mout_spi1", mout_group1_p, SRC_PERIC1, 20, 4),
+	MUX(none, "mout_spi2", mout_group1_p, SRC_PERIC1, 24, 4),
+};
+
+struct samsung_div_clock exynos5250_div_clks[] __initdata = {
+	DIV(none, "div_arm", "mout_cpu", DIV_CPU0, 0, 3),
+	DIV(none, "sclk_apll", "mout_apll", DIV_CPU0, 24, 3),
+	DIV(none, "aclk66_pre", "sclk_mpll_user", DIV_TOP1, 24, 3),
+	DIV(none, "aclk66", "aclk66_pre", DIV_TOP0, 0, 3),
+	DIV(none, "aclk266", "sclk_mpll_user", DIV_TOP0, 16, 3),
+	DIV(none, "aclk166", "mout_aclk166", DIV_TOP0, 8, 3),
+	DIV(none, "aclk333", "mout_aclk333", DIV_TOP0, 20, 3),
+	DIV(none, "aclk200", "mout_aclk200", DIV_TOP0, 12, 3),
+	DIV(none, "div_cam_bayer", "mout_cam_bayer", DIV_GSCL, 12, 4),
+	DIV(none, "div_cam0", "mout_cam0", DIV_GSCL, 16, 4),
+	DIV(none, "div_cam1", "mout_cam1", DIV_GSCL, 20, 4),
+	DIV(none, "div_gscl_wa", "mout_gscl_wa", DIV_GSCL, 24, 4),
+	DIV(none, "div_gscl_wb", "mout_gscl_wb", DIV_GSCL, 28, 4),
+	DIV(none, "div_fimd1", "mout_fimd1", DIV_DISP1_0, 0, 4),
+	DIV(none, "div_mipi1", "mout_mipi1", DIV_DISP1_0, 16, 4),
+	DIV(none, "div_dp", "mout_dp", DIV_DISP1_0, 24, 4),
+	DIV(none, "div_jpeg", "mout_jpeg", DIV_GEN, 4, 4),
+	DIV(none, "div_audio0", "mout_audio0", DIV_MAU, 0, 4),
+	DIV(none, "div_pcm0", "sclk_audio0", DIV_MAU, 4, 8),
+	DIV(none, "div_sata", "mout_sata", DIV_FSYS0, 20, 4),
+	DIV(none, "div_usb3", "mout_usb3", DIV_FSYS0, 24, 4),
+	DIV(none, "div_mmc0", "mout_mmc0", DIV_FSYS1, 8, 8),
+	DIV(none, "div_mmc1", "mout_mmc1", DIV_FSYS1, 24, 8),
+	DIV(none, "div_mmc2", "mout_mmc2", DIV_FSYS2, 8, 8),
+	DIV(none, "div_mmc3", "mout_mmc3", DIV_FSYS2, 24, 8),
+	DIV(none, "div_uart0", "mout_uart0", DIV_PERIC0, 0, 4),
+	DIV(none, "div_uart1", "mout_uart1", DIV_PERIC0, 4, 4),
+	DIV(none, "div_uart2", "mout_uart2", DIV_PERIC0, 8, 4),
+	DIV(none, "div_uart3", "mout_uart3", DIV_PERIC0, 12, 4),
+	DIV(none, "div_spi0", "mout_spi0", DIV_PERIC1, 0, 4),
+	DIV(none, "div_spi1", "mout_spi1", DIV_PERIC1, 16, 4),
+	DIV(none, "div_spi2", "mout_spi2", DIV_PERIC2, 0, 4),
+	DIV(none, "div_pwm", "mout_pwm", DIV_PERIC3, 0, 4),
+	DIV(none, "div_audio1", "mout_audio1", DIV_PERIC4, 0, 4),
+	DIV(none, "div_pcm1", "sclk_audio1", DIV_PERIC4, 4, 8),
+	DIV(none, "div_audio2", "mout_audio2", DIV_PERIC4, 16, 4),
+	DIV(none, "div_pcm2", "sclk_audio2", DIV_PERIC4, 20, 8),
+	DIV(none, "div_i2s1", "sclk_audio1", DIV_PERIC5, 0, 6),
+	DIV(none, "div_i2s2", "sclk_audio2", DIV_PERIC5, 8, 6),
+	DIV(sclk_pixel, "div_hdmi_pixel", "sclk_vpll", DIV_DISP1_0, 28, 4),
+	DIV_A(none, "armclk", "div_arm", DIV_CPU0, 28, 3, "armclk"),
+	DIV_F(none, "div_mipi1_pre", "div_mipi1",
+			DIV_DISP1_0, 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),
+	DIV_F(none, "div_spi_pre0", "div_spi0",
+			DIV_PERIC1, 8, 8, CLK_SET_RATE_PARENT, 0),
+	DIV_F(none, "div_spi_pre1", "div_spi1",
+			DIV_PERIC1, 24, 8, CLK_SET_RATE_PARENT, 0),
+	DIV_F(none, "div_spi_pre2", "div_spi2",
+			DIV_PERIC2, 8, 8, CLK_SET_RATE_PARENT, 0),
+};
+
+struct samsung_gate_clock exynos5250_gate_clks[] __initdata = {
+	GATE(gscl0, "gscl0", "none", GATE_IP_GSCL, 0, 0, 0),
+	GATE(gscl1, "gscl1", "none", GATE_IP_GSCL, 1, 0, 0),
+	GATE(gscl2, "gscl2", "aclk266", GATE_IP_GSCL, 2, 0, 0),
+	GATE(gscl3, "gscl3", "aclk266", GATE_IP_GSCL, 3, 0, 0),
+	GATE(gscl_wa, "gscl_wa", "div_gscl_wa", GATE_IP_GSCL, 5, 0, 0),
+	GATE(gscl_wb, "gscl_wb", "div_gscl_wb", GATE_IP_GSCL, 6, 0, 0),
+	GATE(smmu_gscl0, "smmu_gscl0", "aclk266", GATE_IP_GSCL, 7, 0, 0),
+	GATE(smmu_gscl1, "smmu_gscl1", "aclk266", GATE_IP_GSCL, 8, 0, 0),
+	GATE(smmu_gscl2, "smmu_gscl2", "aclk266", GATE_IP_GSCL, 9, 0, 0),
+	GATE(smmu_gscl3, "smmu_gscl3", "aclk266", GATE_IP_GSCL, 10, 0, 0),
+	GATE(mfc, "mfc", "aclk333", GATE_IP_MFC, 0, 0, 0),
+	GATE(smmu_mfcl, "smmu_mfcl", "aclk333", GATE_IP_MFC, 1, 0, 0),
+	GATE(smmu_mfcr, "smmu_mfcr", "aclk333", GATE_IP_MFC, 2, 0, 0),
+	GATE(rotator, "rotator", "aclk266", GATE_IP_GEN, 1, 0, 0),
+	GATE(jpeg, "jpeg", "aclk166", GATE_IP_GEN, 2, 0, 0),
+	GATE(mdma1, "mdma1", "aclk266", GATE_IP_GEN, 4, 0, 0),
+	GATE(smmu_rotator, "smmu_rotator", "aclk266", GATE_IP_GEN, 6, 0, 0),
+	GATE(smmu_jpeg, "smmu_jpeg", "aclk166", GATE_IP_GEN, 7, 0, 0),
+	GATE(smmu_mdma1, "smmu_mdma1", "aclk266", GATE_IP_GEN, 9, 0, 0),
+	GATE(pdma0, "pdma0", "aclk200", GATE_IP_FSYS, 1, 0, 0),
+	GATE(pdma1, "pdma1", "aclk200", GATE_IP_FSYS, 2, 0, 0),
+	GATE(sata, "sata", "aclk200", GATE_IP_FSYS, 6, 0, 0),
+	GATE(usbotg, "usbotg", "aclk200", GATE_IP_FSYS, 7, 0, 0),
+	GATE(mipi_hsi, "mipi_hsi", "aclk200", GATE_IP_FSYS, 8, 0, 0),
+	GATE(sdmmc0, "sdmmc0", "aclk200", GATE_IP_FSYS, 12, 0, 0),
+	GATE(sdmmc1, "sdmmc1", "aclk200", GATE_IP_FSYS, 13, 0, 0),
+	GATE(sdmmc2, "sdmmc2", "aclk200", GATE_IP_FSYS, 14, 0, 0),
+	GATE(sdmmc3, "sdmmc3", "aclk200", GATE_IP_FSYS, 15, 0, 0),
+	GATE(sromc, "sromc", "aclk200", GATE_IP_FSYS, 17, 0, 0),
+	GATE(usb2, "usb2", "aclk200", GATE_IP_FSYS, 18, 0, 0),
+	GATE(usb3, "usb3", "aclk200", GATE_IP_FSYS, 19, 0, 0),
+	GATE(sata_phyctrl, "sata_phyctrl", "aclk200", GATE_IP_FSYS, 24, 0, 0),
+	GATE(sata_phyi2c, "sata_phyi2c", "aclk200", GATE_IP_FSYS, 25, 0, 0),
+	GATE(uart0, "uart0", "aclk66", GATE_IP_PERIC, 0, 0, 0),
+	GATE(uart1, "uart1", "aclk66", GATE_IP_PERIC, 1, 0, 0),
+	GATE(uart2, "uart2", "aclk66", GATE_IP_PERIC, 2, 0, 0),
+	GATE(uart3, "uart3", "aclk66", GATE_IP_PERIC, 3, 0, 0),
+	GATE(uart4, "uart4", "aclk66", GATE_IP_PERIC, 4, 0, 0),
+	GATE(i2c0, "i2c0", "aclk66", GATE_IP_PERIC, 6, 0, 0),
+	GATE(i2c1, "i2c1", "aclk66", GATE_IP_PERIC, 7, 0, 0),
+	GATE(i2c2, "i2c2", "aclk66", GATE_IP_PERIC, 8, 0, 0),
+	GATE(i2c3, "i2c3", "aclk66", GATE_IP_PERIC, 9, 0, 0),
+	GATE(i2c4, "i2c4", "aclk66", GATE_IP_PERIC, 10, 0, 0),
+	GATE(i2c5, "i2c5", "aclk66", GATE_IP_PERIC, 11, 0, 0),
+	GATE(i2c6, "i2c6", "aclk66", GATE_IP_PERIC, 12, 0, 0),
+	GATE(i2c7, "i2c7", "aclk66", GATE_IP_PERIC, 13, 0, 0),
+	GATE(i2c_hdmi, "i2c_hdmi", "aclk66", GATE_IP_PERIC, 14, 0, 0),
+	GATE(adc, "adc", "aclk66", GATE_IP_PERIC, 15, 0, 0),
+	GATE(spi0, "spi0", "aclk66", GATE_IP_PERIC, 16, 0, 0),
+	GATE(spi1, "spi1", "aclk66", GATE_IP_PERIC, 17, 0, 0),
+	GATE(spi2, "spi2", "aclk66", GATE_IP_PERIC, 18, 0, 0),
+	GATE(i2s1, "i2s1", "aclk66", GATE_IP_PERIC, 20, 0, 0),
+	GATE(i2s2, "i2s2", "aclk66", GATE_IP_PERIC, 21, 0, 0),
+	GATE(pcm1, "pcm1", "aclk66", GATE_IP_PERIC, 22, 0, 0),
+	GATE(pcm2, "pcm2", "aclk66", GATE_IP_PERIC, 23, 0, 0),
+	GATE(pwm, "pwm", "aclk66", GATE_IP_PERIC, 24, 0, 0),
+	GATE(spdif, "spdif", "aclk66", GATE_IP_PERIC, 26, 0, 0),
+	GATE(ac97, "ac97", "aclk66", GATE_IP_PERIC, 27, 0, 0),
+	GATE(hsi2c0, "hsi2c0", "aclk66", GATE_IP_PERIC, 28, 0, 0),
+	GATE(hsi2c1, "hsi2c1", "aclk66", GATE_IP_PERIC, 29, 0, 0),
+	GATE(hsi2c2, "hsi2c2", "aclk66", GATE_IP_PERIC, 30, 0, 0),
+	GATE(hsi2c3, "hsi2c3", "aclk66", GATE_IP_PERIC, 31, 0, 0),
+	GATE(chipid, "chipid", "aclk66", GATE_IP_PERIS, 0, 0, 0),
+	GATE(sysreg, "sysreg", "aclk66", GATE_IP_PERIS, 1, 0, 0),
+	GATE(pmu, "pmu", "aclk66", GATE_IP_PERIS, 2, 0, 0),
+	GATE(tzpc0, "tzpc0", "aclk66", GATE_IP_PERIS, 6, 0, 0),
+	GATE(tzpc1, "tzpc1", "aclk66", GATE_IP_PERIS, 7, 0, 0),
+	GATE(tzpc2, "tzpc2", "aclk66", GATE_IP_PERIS, 8, 0, 0),
+	GATE(tzpc3, "tzpc3", "aclk66", GATE_IP_PERIS, 9, 0, 0),
+	GATE(tzpc4, "tzpc4", "aclk66", GATE_IP_PERIS, 10, 0, 0),
+	GATE(tzpc5, "tzpc5", "aclk66", GATE_IP_PERIS, 11, 0, 0),
+	GATE(tzpc6, "tzpc6", "aclk66", GATE_IP_PERIS, 12, 0, 0),
+	GATE(tzpc7, "tzpc7", "aclk66", GATE_IP_PERIS, 13, 0, 0),
+	GATE(tzpc8, "tzpc8", "aclk66", GATE_IP_PERIS, 14, 0, 0),
+	GATE(tzpc9, "tzpc9", "aclk66", GATE_IP_PERIS, 15, 0, 0),
+	GATE(hdmi_cec, "hdmi_cec", "aclk66", GATE_IP_PERIS, 16, 0, 0),
+	GATE(mct, "mct", "aclk66", GATE_IP_PERIS, 18, 0, 0),
+	GATE(wdt, "wdt", "aclk66", GATE_IP_PERIS, 19, 0, 0),
+	GATE(rtc, "rtc", "aclk66", GATE_IP_PERIS, 20, 0, 0),
+	GATE(tmu, "tmu", "aclk66", GATE_IP_PERIS, 21, 0, 0),
+	GATE(cmu_top, "cmu_top", "aclk66",
+			GATE_IP_PERIS, 3, CLK_IGNORE_UNUSED, 0),
+	GATE(cmu_core, "cmu_core", "aclk66",
+			GATE_IP_PERIS, 4, CLK_IGNORE_UNUSED, 0),
+	GATE(cmu_mem, "cmu_mem", "aclk66",
+			GATE_IP_PERIS, 5, CLK_IGNORE_UNUSED, 0),
+	GATE(sclk_cam_bayer, "sclk_cam_bayer", "div_cam_bayer",
+			SRC_MASK_GSCL, 12, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_cam0, "sclk_cam0", "div_cam0",
+			SRC_MASK_GSCL, 16, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_cam1, "sclk_cam1", "div_cam1",
+			SRC_MASK_GSCL, 20, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_gscl_wa, "sclk_gscl_wa", "div_gscl_wa",
+			SRC_MASK_GSCL, 24, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_gscl_wb, "sclk_gscl_wb", "div_gscl_wb",
+			SRC_MASK_GSCL, 28, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_fimd1, "sclk_fimd1", "div_fimd1",
+			SRC_MASK_DISP1_0, 0, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_mipi1, "sclk_mipi1", "div_mipi1",
+			SRC_MASK_DISP1_0, 12, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_dp, "sclk_dp", "div_dp",
+			SRC_MASK_DISP1_0, 16, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_hdmi, "sclk_hdmi", "mout_hdmi",
+			SRC_MASK_DISP1_0, 20, 0, 0),
+	GATE(sclk_audio0, "sclk_audio0", "div_audio0",
+			SRC_MASK_MAU, 0, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_mmc0, "sclk_mmc0", "div_mmc0",
+			SRC_MASK_FSYS, 0, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_mmc1, "sclk_mmc1", "div_mmc1",
+			SRC_MASK_FSYS, 4, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_mmc2, "sclk_mmc2", "div_mmc2",
+			SRC_MASK_FSYS, 8, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_mmc3, "sclk_mmc3", "div_mmc3",
+			SRC_MASK_FSYS, 12, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_sata, "sclk_sata", "div_sata",
+			SRC_MASK_FSYS, 24, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_usb3, "sclk_usb3", "div_usb3",
+			SRC_MASK_FSYS, 28, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_jpeg, "sclk_jpeg", "div_jpeg",
+			SRC_MASK_GEN, 0, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_uart0, "sclk_uart0", "div_uart0",
+			SRC_MASK_PERIC0, 0, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_uart1, "sclk_uart1", "div_uart1",
+			SRC_MASK_PERIC0, 4, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_uart2, "sclk_uart2", "div_uart2",
+			SRC_MASK_PERIC0, 8, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_uart3, "sclk_uart3", "div_uart3",
+			SRC_MASK_PERIC0, 12, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_pwm, "sclk_pwm", "div_pwm",
+			SRC_MASK_PERIC0, 24, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_audio1, "sclk_audio1", "div_audio1",
+			SRC_MASK_PERIC1, 0, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_audio2, "sclk_audio2", "div_audio2",
+			SRC_MASK_PERIC1, 4, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_spdif, "sclk_spdif", "mout_spdif",
+			SRC_MASK_PERIC1, 4, 0, 0),
+	GATE(sclk_spi0, "sclk_spi0", "div_spi_pre0",
+			SRC_MASK_PERIC1, 16, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_spi1, "sclk_spi1", "div_spi_pre1",
+			SRC_MASK_PERIC1, 20, CLK_SET_RATE_PARENT, 0),
+	GATE(sclk_spi2, "sclk_spi2", "div_spi_pre2",
+			SRC_MASK_PERIC1, 24, CLK_SET_RATE_PARENT, 0),
+	GATE(fimd1, "fimd1", "aclk200", GATE_IP_DISP1, 0, 0, 0),
+	GATE(mie1, "mie1", "aclk200", GATE_IP_DISP1, 1, 0, 0),
+	GATE(dsim0, "dsim0", "aclk200", GATE_IP_DISP1, 3, 0, 0),
+	GATE(dp, "dp", "aclk200", GATE_IP_DISP1, 4, 0, 0),
+	GATE(mixer, "mixer", "aclk200", GATE_IP_DISP1, 5, 0, 0),
+	GATE(hdmi, "hdmi", "aclk200", GATE_IP_DISP1, 6, 0, 0),
+};
+
+static __initdata struct of_device_id ext_clk_match[] = {
+	{ .compatible = "samsung,clock-xxti", .data = (void *)0, },
+	{ },
+};
+
+/* register exynox5250 clocks */
+void __init exynos5250_clk_init(struct device_node *np)
+{
+	void __iomem *reg_base;
+	struct clk *apll, *mpll, *epll, *vpll, *bpll, *gpll, *cpll;
+
+	if (np) {
+		reg_base = of_iomap(np, 0);
+		if (!reg_base)
+			panic("%s: failed to map registers\n", __func__);
+	} else {
+		panic("%s: unable to determine soc\n", __func__);
+	}
+
+	samsung_clk_init(np, reg_base, nr_clks,
+			exynos5250_clk_regs, ARRAY_SIZE(exynos5250_clk_regs),
+			NULL, 0);
+	samsung_clk_of_register_fixed_ext(exynos5250_fixed_rate_ext_clks,
+			ARRAY_SIZE(exynos5250_fixed_rate_ext_clks),
+			ext_clk_match);
+
+	apll = samsung_clk_register_pll35xx("fout_apll", "fin_pll",
+			reg_base + 0x100);
+	mpll = samsung_clk_register_pll35xx("fout_mpll", "fin_pll",
+			reg_base + 0x4100);
+	bpll = samsung_clk_register_pll35xx("fout_bpll", "fin_pll",
+			reg_base + 0x20110);
+	gpll = samsung_clk_register_pll35xx("fout_gpll", "fin_pll",
+			reg_base + 0x10150);
+	cpll = samsung_clk_register_pll35xx("fout_cpll", "fin_pll",
+			reg_base + 0x10120);
+	epll = samsung_clk_register_pll36xx("fout_epll", "fin_pll",
+			reg_base + 0x10130);
+	vpll = samsung_clk_register_pll36xx("fout_vpll", "mout_vpllsrc",
+			reg_base + 0x10140);
+
+	samsung_clk_register_fixed_rate(exynos5250_fixed_rate_clks,
+			ARRAY_SIZE(exynos5250_fixed_rate_clks));
+	samsung_clk_register_fixed_factor(exynos5250_fixed_factor_clks,
+			ARRAY_SIZE(exynos5250_fixed_factor_clks));
+	samsung_clk_register_mux(exynos5250_mux_clks,
+			ARRAY_SIZE(exynos5250_mux_clks));
+	samsung_clk_register_div(exynos5250_div_clks,
+			ARRAY_SIZE(exynos5250_div_clks));
+	samsung_clk_register_gate(exynos5250_gate_clks,
+			ARRAY_SIZE(exynos5250_gate_clks));
+
+	pr_info("Exynos5250: clock setup completed, armclk=%ld\n",
+			_get_rate("armclk"));
+}
+CLK_OF_DECLARE(exynos5250_clk, "samsung,exynos5250-clock", exynos5250_clk_init);
diff --git a/drivers/clk/samsung/clk-exynos5440.c b/drivers/clk/samsung/clk-exynos5440.c
new file mode 100644
index 00000000000..a0a094c06f1
--- /dev/null
+++ b/drivers/clk/samsung/clk-exynos5440.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., 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 Exynos5440 SoC.
+*/
+
+#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"
+
+#define CLKEN_OV_VAL		0xf8
+#define CPU_CLK_STATUS		0xfc
+#define MISC_DOUT1		0x558
+
+/*
+ * Let each supported clock get a unique id. This id is used to lookup the clock
+ * for device tree based platforms.
+ */
+enum exynos5440_clks {
+	none, xtal, arm_clk,
+
+	spi_baud = 16, pb0_250, pr0_250, pr1_250, b_250, b_125, b_200, sata,
+	usb, gmac0, cs250, pb0_250_o, pr0_250_o, pr1_250_o, b_250_o, b_125_o,
+	b_200_o, sata_o, usb_o, gmac0_o, cs250_o,
+
+	nr_clks,
+};
+
+/* parent clock name list */
+PNAME(mout_armclk_p)	= { "cplla", "cpllb" };
+PNAME(mout_spi_p)	= { "div125", "div200" };
+
+/* fixed rate clocks generated outside the soc */
+struct samsung_fixed_rate_clock exynos5440_fixed_rate_ext_clks[] __initdata = {
+	FRATE(none, "xtal", NULL, CLK_IS_ROOT, 0),
+};
+
+/* fixed rate clocks */
+struct samsung_fixed_rate_clock exynos5440_fixed_rate_clks[] __initdata = {
+	FRATE(none, "ppll", NULL, CLK_IS_ROOT, 1000000000),
+	FRATE(none, "usb_phy0", NULL, CLK_IS_ROOT, 60000000),
+	FRATE(none, "usb_phy1", NULL, CLK_IS_ROOT, 60000000),
+	FRATE(none, "usb_ohci12", NULL, CLK_IS_ROOT, 12000000),
+	FRATE(none, "usb_ohci48", NULL, CLK_IS_ROOT, 48000000),
+};
+
+/* fixed factor clocks */
+struct samsung_fixed_factor_clock exynos5440_fixed_factor_clks[] __initdata = {
+	FFACTOR(none, "div250", "ppll", 1, 4, 0),
+	FFACTOR(none, "div200", "ppll", 1, 5, 0),
+	FFACTOR(none, "div125", "div250", 1, 2, 0),
+};
+
+/* mux clocks */
+struct samsung_mux_clock exynos5440_mux_clks[] __initdata = {
+	MUX(none, "mout_spi", mout_spi_p, MISC_DOUT1, 5, 1),
+	MUX_A(arm_clk, "arm_clk", mout_armclk_p,
+			CPU_CLK_STATUS, 0, 1, "armclk"),
+};
+
+/* divider clocks */
+struct samsung_div_clock exynos5440_div_clks[] __initdata = {
+	DIV(spi_baud, "div_spi", "mout_spi", MISC_DOUT1, 3, 2),
+};
+
+/* gate clocks */
+struct samsung_gate_clock exynos5440_gate_clks[] __initdata = {
+	GATE(pb0_250, "pb0_250", "div250", CLKEN_OV_VAL, 3, 0, 0),
+	GATE(pr0_250, "pr0_250", "div250", CLKEN_OV_VAL, 4, 0, 0),
+	GATE(pr1_250, "pr1_250", "div250", CLKEN_OV_VAL, 5, 0, 0),
+	GATE(b_250, "b_250", "div250", CLKEN_OV_VAL, 9, 0, 0),
+	GATE(b_125, "b_125", "div125", CLKEN_OV_VAL, 10, 0, 0),
+	GATE(b_200, "b_200", "div200", CLKEN_OV_VAL, 11, 0, 0),
+	GATE(sata, "sata", "div200", CLKEN_OV_VAL, 12, 0, 0),
+	GATE(usb, "usb", "div200", CLKEN_OV_VAL, 13, 0, 0),
+	GATE(gmac0, "gmac0", "div200", CLKEN_OV_VAL, 14, 0, 0),
+	GATE(cs250, "cs250", "div250", CLKEN_OV_VAL, 19, 0, 0),
+	GATE(pb0_250_o, "pb0_250_o", "pb0_250", CLKEN_OV_VAL, 3, 0, 0),
+	GATE(pr0_250_o, "pr0_250_o", "pr0_250", CLKEN_OV_VAL, 4, 0, 0),
+	GATE(pr1_250_o, "pr1_250_o", "pr1_250", CLKEN_OV_VAL, 5, 0, 0),
+	GATE(b_250_o, "b_250_o", "b_250", CLKEN_OV_VAL, 9, 0, 0),
+	GATE(b_125_o, "b_125_o", "b_125", CLKEN_OV_VAL, 10, 0, 0),
+	GATE(b_200_o, "b_200_o", "b_200", CLKEN_OV_VAL, 11, 0, 0),
+	GATE(sata_o, "sata_o", "sata", CLKEN_OV_VAL, 12, 0, 0),
+	GATE(usb_o, "usb_o", "usb", CLKEN_OV_VAL, 13, 0, 0),
+	GATE(gmac0_o, "gmac0_o", "gmac", CLKEN_OV_VAL, 14, 0, 0),
+	GATE(cs250_o, "cs250_o", "cs250", CLKEN_OV_VAL, 19, 0, 0),
+};
+
+static __initdata struct of_device_id ext_clk_match[] = {
+	{ .compatible = "samsung,clock-xtal", .data = (void *)0, },
+	{},
+};
+
+/* register exynos5440 clocks */
+void __init exynos5440_clk_init(struct device_node *np)
+{
+	void __iomem *reg_base;
+
+	reg_base = of_iomap(np, 0);
+	if (!reg_base) {
+		pr_err("%s: failed to map clock controller registers,"
+			" aborting clock initialization\n", __func__);
+		return;
+	}
+
+	samsung_clk_init(np, reg_base, nr_clks, NULL, 0, NULL, 0);
+	samsung_clk_of_register_fixed_ext(exynos5440_fixed_rate_ext_clks,
+		ARRAY_SIZE(exynos5440_fixed_rate_ext_clks), ext_clk_match);
+
+	samsung_clk_register_pll2550x("cplla", "xtal", reg_base + 0x1c, 0x10);
+	samsung_clk_register_pll2550x("cpllb", "xtal", reg_base + 0x20, 0x10);
+
+	samsung_clk_register_fixed_rate(exynos5440_fixed_rate_clks,
+			ARRAY_SIZE(exynos5440_fixed_rate_clks));
+	samsung_clk_register_fixed_factor(exynos5440_fixed_factor_clks,
+			ARRAY_SIZE(exynos5440_fixed_factor_clks));
+	samsung_clk_register_mux(exynos5440_mux_clks,
+			ARRAY_SIZE(exynos5440_mux_clks));
+	samsung_clk_register_div(exynos5440_div_clks,
+			ARRAY_SIZE(exynos5440_div_clks));
+	samsung_clk_register_gate(exynos5440_gate_clks,
+			ARRAY_SIZE(exynos5440_gate_clks));
+
+	pr_info("Exynos5440: arm_clk = %ldHz\n", _get_rate("armclk"));
+	pr_info("exynos5440 clock initialization complete\n");
+}
+CLK_OF_DECLARE(exynos5440_clk, "samsung,exynos5440-clock", exynos5440_clk_init);
diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
new file mode 100644
index 00000000000..89135f6be11
--- /dev/null
+++ b/drivers/clk/samsung/clk-pll.c
@@ -0,0 +1,419 @@
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2013 Linaro Ltd.
+ *
+ * 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.
+ *
+ * This file contains the utility functions to register the pll clocks.
+*/
+
+#include <linux/errno.h>
+#include "clk.h"
+#include "clk-pll.h"
+
+/*
+ * PLL35xx Clock Type
+ */
+
+#define PLL35XX_MDIV_MASK       (0x3FF)
+#define PLL35XX_PDIV_MASK       (0x3F)
+#define PLL35XX_SDIV_MASK       (0x7)
+#define PLL35XX_MDIV_SHIFT      (16)
+#define PLL35XX_PDIV_SHIFT      (8)
+#define PLL35XX_SDIV_SHIFT      (0)
+
+struct samsung_clk_pll35xx {
+	struct clk_hw		hw;
+	const void __iomem	*con_reg;
+};
+
+#define to_clk_pll35xx(_hw) container_of(_hw, struct samsung_clk_pll35xx, hw)
+
+static unsigned long samsung_pll35xx_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct samsung_clk_pll35xx *pll = to_clk_pll35xx(hw);
+	u32 mdiv, pdiv, sdiv, pll_con;
+	u64 fvco = parent_rate;
+
+	pll_con = __raw_readl(pll->con_reg);
+	mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
+	pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK;
+	sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK;
+
+	fvco *= mdiv;
+	do_div(fvco, (pdiv << sdiv));
+
+	return (unsigned long)fvco;
+}
+
+static const struct clk_ops samsung_pll35xx_clk_ops = {
+	.recalc_rate = samsung_pll35xx_recalc_rate,
+};
+
+struct clk * __init samsung_clk_register_pll35xx(const char *name,
+			const char *pname, const void __iomem *con_reg)
+{
+	struct samsung_clk_pll35xx *pll;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll) {
+		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
+		return NULL;
+	}
+
+	init.name = name;
+	init.ops = &samsung_pll35xx_clk_ops;
+	init.flags = CLK_GET_RATE_NOCACHE;
+	init.parent_names = &pname;
+	init.num_parents = 1;
+
+	pll->hw.init = &init;
+	pll->con_reg = con_reg;
+
+	clk = clk_register(NULL, &pll->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: failed to register pll clock %s\n", __func__,
+				name);
+		kfree(pll);
+	}
+
+	if (clk_register_clkdev(clk, name, NULL))
+		pr_err("%s: failed to register lookup for %s", __func__, name);
+
+	return clk;
+}
+
+/*
+ * PLL36xx Clock Type
+ */
+
+#define PLL36XX_KDIV_MASK	(0xFFFF)
+#define PLL36XX_MDIV_MASK	(0x1FF)
+#define PLL36XX_PDIV_MASK	(0x3F)
+#define PLL36XX_SDIV_MASK	(0x7)
+#define PLL36XX_MDIV_SHIFT	(16)
+#define PLL36XX_PDIV_SHIFT	(8)
+#define PLL36XX_SDIV_SHIFT	(0)
+
+struct samsung_clk_pll36xx {
+	struct clk_hw		hw;
+	const void __iomem	*con_reg;
+};
+
+#define to_clk_pll36xx(_hw) container_of(_hw, struct samsung_clk_pll36xx, hw)
+
+static unsigned long samsung_pll36xx_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct samsung_clk_pll36xx *pll = to_clk_pll36xx(hw);
+	u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1;
+	u64 fvco = parent_rate;
+
+	pll_con0 = __raw_readl(pll->con_reg);
+	pll_con1 = __raw_readl(pll->con_reg + 4);
+	mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK;
+	pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK;
+	sdiv = (pll_con0 >> PLL36XX_SDIV_SHIFT) & PLL36XX_SDIV_MASK;
+	kdiv = pll_con1 & PLL36XX_KDIV_MASK;
+
+	fvco *= (mdiv << 16) + kdiv;
+	do_div(fvco, (pdiv << sdiv));
+	fvco >>= 16;
+
+	return (unsigned long)fvco;
+}
+
+static const struct clk_ops samsung_pll36xx_clk_ops = {
+	.recalc_rate = samsung_pll36xx_recalc_rate,
+};
+
+struct clk * __init samsung_clk_register_pll36xx(const char *name,
+			const char *pname, const void __iomem *con_reg)
+{
+	struct samsung_clk_pll36xx *pll;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll) {
+		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
+		return NULL;
+	}
+
+	init.name = name;
+	init.ops = &samsung_pll36xx_clk_ops;
+	init.flags = CLK_GET_RATE_NOCACHE;
+	init.parent_names = &pname;
+	init.num_parents = 1;
+
+	pll->hw.init = &init;
+	pll->con_reg = con_reg;
+
+	clk = clk_register(NULL, &pll->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: failed to register pll clock %s\n", __func__,
+				name);
+		kfree(pll);
+	}
+
+	if (clk_register_clkdev(clk, name, NULL))
+		pr_err("%s: failed to register lookup for %s", __func__, name);
+
+	return clk;
+}
+
+/*
+ * PLL45xx Clock Type
+ */
+
+#define PLL45XX_MDIV_MASK	(0x3FF)
+#define PLL45XX_PDIV_MASK	(0x3F)
+#define PLL45XX_SDIV_MASK	(0x7)
+#define PLL45XX_MDIV_SHIFT	(16)
+#define PLL45XX_PDIV_SHIFT	(8)
+#define PLL45XX_SDIV_SHIFT	(0)
+
+struct samsung_clk_pll45xx {
+	struct clk_hw		hw;
+	enum pll45xx_type	type;
+	const void __iomem	*con_reg;
+};
+
+#define to_clk_pll45xx(_hw) container_of(_hw, struct samsung_clk_pll45xx, hw)
+
+static unsigned long samsung_pll45xx_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct samsung_clk_pll45xx *pll = to_clk_pll45xx(hw);
+	u32 mdiv, pdiv, sdiv, pll_con;
+	u64 fvco = parent_rate;
+
+	pll_con = __raw_readl(pll->con_reg);
+	mdiv = (pll_con >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK;
+	pdiv = (pll_con >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK;
+	sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK;
+
+	if (pll->type == pll_4508)
+		sdiv = sdiv - 1;
+
+	fvco *= mdiv;
+	do_div(fvco, (pdiv << sdiv));
+
+	return (unsigned long)fvco;
+}
+
+static const struct clk_ops samsung_pll45xx_clk_ops = {
+	.recalc_rate = samsung_pll45xx_recalc_rate,
+};
+
+struct clk * __init samsung_clk_register_pll45xx(const char *name,
+			const char *pname, const void __iomem *con_reg,
+			enum pll45xx_type type)
+{
+	struct samsung_clk_pll45xx *pll;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll) {
+		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
+		return NULL;
+	}
+
+	init.name = name;
+	init.ops = &samsung_pll45xx_clk_ops;
+	init.flags = CLK_GET_RATE_NOCACHE;
+	init.parent_names = &pname;
+	init.num_parents = 1;
+
+	pll->hw.init = &init;
+	pll->con_reg = con_reg;
+	pll->type = type;
+
+	clk = clk_register(NULL, &pll->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: failed to register pll clock %s\n", __func__,
+				name);
+		kfree(pll);
+	}
+
+	if (clk_register_clkdev(clk, name, NULL))
+		pr_err("%s: failed to register lookup for %s", __func__, name);
+
+	return clk;
+}
+
+/*
+ * PLL46xx Clock Type
+ */
+
+#define PLL46XX_MDIV_MASK	(0x1FF)
+#define PLL46XX_PDIV_MASK	(0x3F)
+#define PLL46XX_SDIV_MASK	(0x7)
+#define PLL46XX_MDIV_SHIFT	(16)
+#define PLL46XX_PDIV_SHIFT	(8)
+#define PLL46XX_SDIV_SHIFT	(0)
+
+#define PLL46XX_KDIV_MASK	(0xFFFF)
+#define PLL4650C_KDIV_MASK	(0xFFF)
+#define PLL46XX_KDIV_SHIFT	(0)
+
+struct samsung_clk_pll46xx {
+	struct clk_hw		hw;
+	enum pll46xx_type	type;
+	const void __iomem	*con_reg;
+};
+
+#define to_clk_pll46xx(_hw) container_of(_hw, struct samsung_clk_pll46xx, hw)
+
+static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct samsung_clk_pll46xx *pll = to_clk_pll46xx(hw);
+	u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1, shift;
+	u64 fvco = parent_rate;
+
+	pll_con0 = __raw_readl(pll->con_reg);
+	pll_con1 = __raw_readl(pll->con_reg + 4);
+	mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK;
+	pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK;
+	sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK;
+	kdiv = pll->type == pll_4650c ? pll_con1 & PLL4650C_KDIV_MASK :
+					pll_con1 & PLL46XX_KDIV_MASK;
+
+	shift = pll->type == pll_4600 ? 16 : 10;
+	fvco *= (mdiv << shift) + kdiv;
+	do_div(fvco, (pdiv << sdiv));
+	fvco >>= shift;
+
+	return (unsigned long)fvco;
+}
+
+static const struct clk_ops samsung_pll46xx_clk_ops = {
+	.recalc_rate = samsung_pll46xx_recalc_rate,
+};
+
+struct clk * __init samsung_clk_register_pll46xx(const char *name,
+			const char *pname, const void __iomem *con_reg,
+			enum pll46xx_type type)
+{
+	struct samsung_clk_pll46xx *pll;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll) {
+		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
+		return NULL;
+	}
+
+	init.name = name;
+	init.ops = &samsung_pll46xx_clk_ops;
+	init.flags = CLK_GET_RATE_NOCACHE;
+	init.parent_names = &pname;
+	init.num_parents = 1;
+
+	pll->hw.init = &init;
+	pll->con_reg = con_reg;
+	pll->type = type;
+
+	clk = clk_register(NULL, &pll->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: failed to register pll clock %s\n", __func__,
+				name);
+		kfree(pll);
+	}
+
+	if (clk_register_clkdev(clk, name, NULL))
+		pr_err("%s: failed to register lookup for %s", __func__, name);
+
+	return clk;
+}
+
+/*
+ * PLL2550x Clock Type
+ */
+
+#define PLL2550X_R_MASK       (0x1)
+#define PLL2550X_P_MASK       (0x3F)
+#define PLL2550X_M_MASK       (0x3FF)
+#define PLL2550X_S_MASK       (0x7)
+#define PLL2550X_R_SHIFT      (20)
+#define PLL2550X_P_SHIFT      (14)
+#define PLL2550X_M_SHIFT      (4)
+#define PLL2550X_S_SHIFT      (0)
+
+struct samsung_clk_pll2550x {
+	struct clk_hw		hw;
+	const void __iomem	*reg_base;
+	unsigned long		offset;
+};
+
+#define to_clk_pll2550x(_hw) container_of(_hw, struct samsung_clk_pll2550x, hw)
+
+static unsigned long samsung_pll2550x_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct samsung_clk_pll2550x *pll = to_clk_pll2550x(hw);
+	u32 r, p, m, s, pll_stat;
+	u64 fvco = parent_rate;
+
+	pll_stat = __raw_readl(pll->reg_base + pll->offset * 3);
+	r = (pll_stat >> PLL2550X_R_SHIFT) & PLL2550X_R_MASK;
+	if (!r)
+		return 0;
+	p = (pll_stat >> PLL2550X_P_SHIFT) & PLL2550X_P_MASK;
+	m = (pll_stat >> PLL2550X_M_SHIFT) & PLL2550X_M_MASK;
+	s = (pll_stat >> PLL2550X_S_SHIFT) & PLL2550X_S_MASK;
+
+	fvco *= m;
+	do_div(fvco, (p << s));
+
+	return (unsigned long)fvco;
+}
+
+static const struct clk_ops samsung_pll2550x_clk_ops = {
+	.recalc_rate = samsung_pll2550x_recalc_rate,
+};
+
+struct clk * __init samsung_clk_register_pll2550x(const char *name,
+			const char *pname, const void __iomem *reg_base,
+			const unsigned long offset)
+{
+	struct samsung_clk_pll2550x *pll;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll) {
+		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
+		return NULL;
+	}
+
+	init.name = name;
+	init.ops = &samsung_pll2550x_clk_ops;
+	init.flags = CLK_GET_RATE_NOCACHE;
+	init.parent_names = &pname;
+	init.num_parents = 1;
+
+	pll->hw.init = &init;
+	pll->reg_base = reg_base;
+	pll->offset = offset;
+
+	clk = clk_register(NULL, &pll->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: failed to register pll clock %s\n", __func__,
+				name);
+		kfree(pll);
+	}
+
+	if (clk_register_clkdev(clk, name, NULL))
+		pr_err("%s: failed to register lookup for %s", __func__, name);
+
+	return clk;
+}
diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h
new file mode 100644
index 00000000000..f33786e9a78
--- /dev/null
+++ b/drivers/clk/samsung/clk-pll.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2013 Linaro Ltd.
+ *
+ * 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 PLL's in Samsung platforms
+*/
+
+#ifndef __SAMSUNG_CLK_PLL_H
+#define __SAMSUNG_CLK_PLL_H
+
+enum pll45xx_type {
+	pll_4500,
+	pll_4502,
+	pll_4508
+};
+
+enum pll46xx_type {
+	pll_4600,
+	pll_4650,
+	pll_4650c,
+};
+
+extern struct clk * __init samsung_clk_register_pll35xx(const char *name,
+			const char *pname, const void __iomem *con_reg);
+extern struct clk * __init samsung_clk_register_pll36xx(const char *name,
+			const char *pname, const void __iomem *con_reg);
+extern struct clk * __init samsung_clk_register_pll45xx(const char *name,
+			const char *pname, const void __iomem *con_reg,
+			enum pll45xx_type type);
+extern struct clk * __init samsung_clk_register_pll46xx(const char *name,
+			const char *pname, const void __iomem *con_reg,
+			enum pll46xx_type type);
+extern struct clk * __init samsung_clk_register_pll2550x(const char *name,
+			const char *pname, const void __iomem *reg_base,
+			const unsigned long offset);
+
+#endif /* __SAMSUNG_CLK_PLL_H */
diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c
new file mode 100644
index 00000000000..cd3c40ab50f
--- /dev/null
+++ b/drivers/clk/samsung/clk.c
@@ -0,0 +1,320 @@
+/*
+ * 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.
+ *
+ * This file includes utility functions to register clocks to common
+ * clock framework for Samsung platforms.
+*/
+
+#include <linux/syscore_ops.h>
+#include "clk.h"
+
+static DEFINE_SPINLOCK(lock);
+static struct clk **clk_table;
+static void __iomem *reg_base;
+#ifdef CONFIG_OF
+static struct clk_onecell_data clk_data;
+#endif
+
+#ifdef CONFIG_PM_SLEEP
+static struct samsung_clk_reg_dump *reg_dump;
+static unsigned long nr_reg_dump;
+
+static int samsung_clk_suspend(void)
+{
+	struct samsung_clk_reg_dump *rd = reg_dump;
+	unsigned long i;
+
+	for (i = 0; i < nr_reg_dump; i++, rd++)
+		rd->value = __raw_readl(reg_base + rd->offset);
+
+	return 0;
+}
+
+static void samsung_clk_resume(void)
+{
+	struct samsung_clk_reg_dump *rd = reg_dump;
+	unsigned long i;
+
+	for (i = 0; i < nr_reg_dump; i++, rd++)
+		__raw_writel(rd->value, reg_base + rd->offset);
+}
+
+static struct syscore_ops samsung_clk_syscore_ops = {
+	.suspend	= samsung_clk_suspend,
+	.resume		= samsung_clk_resume,
+};
+#endif /* CONFIG_PM_SLEEP */
+
+/* setup the essentials required to support clock lookup using ccf */
+void __init samsung_clk_init(struct device_node *np, void __iomem *base,
+		unsigned long nr_clks, unsigned long *rdump,
+		unsigned long nr_rdump, unsigned long *soc_rdump,
+		unsigned long nr_soc_rdump)
+{
+	reg_base = base;
+
+#ifdef CONFIG_PM_SLEEP
+	if (rdump && nr_rdump) {
+		unsigned int idx;
+		reg_dump = kzalloc(sizeof(struct samsung_clk_reg_dump)
+				* (nr_rdump + nr_soc_rdump), GFP_KERNEL);
+		if (!reg_dump) {
+			pr_err("%s: memory alloc for register dump failed\n",
+					__func__);
+			return;
+		}
+
+		for (idx = 0; idx < nr_rdump; idx++)
+			reg_dump[idx].offset = rdump[idx];
+		for (idx = 0; idx < nr_soc_rdump; idx++)
+			reg_dump[nr_rdump + idx].offset = soc_rdump[idx];
+		nr_reg_dump = nr_rdump + nr_soc_rdump;
+		register_syscore_ops(&samsung_clk_syscore_ops);
+	}
+#endif
+
+	clk_table = kzalloc(sizeof(struct clk *) * nr_clks, GFP_KERNEL);
+	if (!clk_table)
+		panic("could not allocate clock lookup table\n");
+
+	if (!np)
+		return;
+
+#ifdef CONFIG_OF
+	clk_data.clks = clk_table;
+	clk_data.clk_num = nr_clks;
+	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+#endif
+}
+
+/* add a clock instance to the clock lookup table used for dt based lookup */
+void samsung_clk_add_lookup(struct clk *clk, unsigned int id)
+{
+	if (clk_table && id)
+		clk_table[id] = clk;
+}
+
+/* register a list of aliases */
+void __init samsung_clk_register_alias(struct samsung_clock_alias *list,
+					unsigned int nr_clk)
+{
+	struct clk *clk;
+	unsigned int idx, ret;
+
+	if (!clk_table) {
+		pr_err("%s: clock table missing\n", __func__);
+		return;
+	}
+
+	for (idx = 0; idx < nr_clk; idx++, list++) {
+		if (!list->id) {
+			pr_err("%s: clock id missing for index %d\n", __func__,
+				idx);
+			continue;
+		}
+
+		clk = clk_table[list->id];
+		if (!clk) {
+			pr_err("%s: failed to find clock %d\n", __func__,
+				list->id);
+			continue;
+		}
+
+		ret = clk_register_clkdev(clk, list->alias, list->dev_name);
+		if (ret)
+			pr_err("%s: failed to register lookup %s\n",
+					__func__, list->alias);
+	}
+}
+
+/* register a list of fixed clocks */
+void __init samsung_clk_register_fixed_rate(
+		struct samsung_fixed_rate_clock *list, unsigned int nr_clk)
+{
+	struct clk *clk;
+	unsigned int idx, ret;
+
+	for (idx = 0; idx < nr_clk; idx++, list++) {
+		clk = clk_register_fixed_rate(NULL, list->name,
+			list->parent_name, list->flags, list->fixed_rate);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n", __func__,
+				list->name);
+			continue;
+		}
+
+		samsung_clk_add_lookup(clk, list->id);
+
+		/*
+		 * Unconditionally add a clock lookup for the fixed rate clocks.
+		 * There are not many of these on any of Samsung platforms.
+		 */
+		ret = clk_register_clkdev(clk, list->name, NULL);
+		if (ret)
+			pr_err("%s: failed to register clock lookup for %s",
+				__func__, list->name);
+	}
+}
+
+/* register a list of fixed factor clocks */
+void __init samsung_clk_register_fixed_factor(
+		struct samsung_fixed_factor_clock *list, unsigned int nr_clk)
+{
+	struct clk *clk;
+	unsigned int idx;
+
+	for (idx = 0; idx < nr_clk; idx++, list++) {
+		clk = clk_register_fixed_factor(NULL, list->name,
+			list->parent_name, list->flags, list->mult, list->div);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n", __func__,
+				list->name);
+			continue;
+		}
+
+		samsung_clk_add_lookup(clk, list->id);
+	}
+}
+
+/* register a list of mux clocks */
+void __init samsung_clk_register_mux(struct samsung_mux_clock *list,
+					unsigned int nr_clk)
+{
+	struct clk *clk;
+	unsigned int idx, ret;
+
+	for (idx = 0; idx < nr_clk; idx++, list++) {
+		clk = clk_register_mux(NULL, list->name, list->parent_names,
+			list->num_parents, list->flags, reg_base + list->offset,
+			list->shift, list->width, list->mux_flags, &lock);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n", __func__,
+				list->name);
+			continue;
+		}
+
+		samsung_clk_add_lookup(clk, list->id);
+
+		/* register a clock lookup only if a clock alias is specified */
+		if (list->alias) {
+			ret = clk_register_clkdev(clk, list->alias,
+						list->dev_name);
+			if (ret)
+				pr_err("%s: failed to register lookup %s\n",
+						__func__, list->alias);
+		}
+	}
+}
+
+/* register a list of div clocks */
+void __init samsung_clk_register_div(struct samsung_div_clock *list,
+					unsigned int nr_clk)
+{
+	struct clk *clk;
+	unsigned int idx, ret;
+
+	for (idx = 0; idx < nr_clk; idx++, list++) {
+		if (list->table)
+			clk = clk_register_divider_table(NULL, list->name,
+					list->parent_name, list->flags,
+					reg_base + list->offset, list->shift,
+					list->width, list->div_flags,
+					list->table, &lock);
+		else
+			clk = clk_register_divider(NULL, list->name,
+					list->parent_name, list->flags,
+					reg_base + list->offset, list->shift,
+					list->width, list->div_flags, &lock);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n", __func__,
+				list->name);
+			continue;
+		}
+
+		samsung_clk_add_lookup(clk, list->id);
+
+		/* register a clock lookup only if a clock alias is specified */
+		if (list->alias) {
+			ret = clk_register_clkdev(clk, list->alias,
+						list->dev_name);
+			if (ret)
+				pr_err("%s: failed to register lookup %s\n",
+						__func__, list->alias);
+		}
+	}
+}
+
+/* register a list of gate clocks */
+void __init samsung_clk_register_gate(struct samsung_gate_clock *list,
+						unsigned int nr_clk)
+{
+	struct clk *clk;
+	unsigned int idx, ret;
+
+	for (idx = 0; idx < nr_clk; idx++, list++) {
+		clk = clk_register_gate(NULL, list->name, list->parent_name,
+				list->flags, reg_base + list->offset,
+				list->bit_idx, list->gate_flags, &lock);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n", __func__,
+				list->name);
+			continue;
+		}
+
+		/* register a clock lookup only if a clock alias is specified */
+		if (list->alias) {
+			ret = clk_register_clkdev(clk, list->alias,
+							list->dev_name);
+			if (ret)
+				pr_err("%s: failed to register lookup %s\n",
+					__func__, list->alias);
+		}
+
+		samsung_clk_add_lookup(clk, list->id);
+	}
+}
+
+/*
+ * obtain the clock speed of all external fixed clock sources from device
+ * tree and register it
+ */
+#ifdef CONFIG_OF
+void __init samsung_clk_of_register_fixed_ext(
+			struct samsung_fixed_rate_clock *fixed_rate_clk,
+			unsigned int nr_fixed_rate_clk,
+			struct of_device_id *clk_matches)
+{
+	const struct of_device_id *match;
+	struct device_node *np;
+	u32 freq;
+
+	for_each_matching_node_and_match(np, clk_matches, &match) {
+		if (of_property_read_u32(np, "clock-frequency", &freq))
+			continue;
+		fixed_rate_clk[(u32)match->data].fixed_rate = freq;
+	}
+	samsung_clk_register_fixed_rate(fixed_rate_clk, nr_fixed_rate_clk);
+}
+#endif
+
+/* utility function to get the rate of a specified clock */
+unsigned long _get_rate(const char *clk_name)
+{
+	struct clk *clk;
+	unsigned long rate;
+
+	clk = clk_get(NULL, clk_name);
+	if (IS_ERR(clk)) {
+		pr_err("%s: could not find clock %s\n", __func__, clk_name);
+		return 0;
+	}
+	rate = clk_get_rate(clk);
+	clk_put(clk);
+	return rate;
+}
diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h
new file mode 100644
index 00000000000..10b2111f0c0
--- /dev/null
+++ b/drivers/clk/samsung/clk.h
@@ -0,0 +1,289 @@
+/*
+ * 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 Samsung platforms
+*/
+
+#ifndef __SAMSUNG_CLK_H
+#define __SAMSUNG_CLK_H
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <mach/map.h>
+
+/**
+ * struct samsung_clock_alias: information about mux clock
+ * @id: platform specific id of the clock.
+ * @dev_name: name of the device to which this clock belongs.
+ * @alias: optional clock alias name to be assigned to this clock.
+ */
+struct samsung_clock_alias {
+	unsigned int		id;
+	const char		*dev_name;
+	const char		*alias;
+};
+
+#define ALIAS(_id, dname, a)	\
+	{							\
+		.id		= _id,				\
+		.dev_name	= dname,			\
+		.alias		= a,				\
+	}
+
+/**
+ * struct samsung_fixed_rate_clock: information about fixed-rate clock
+ * @id: platform specific id of the clock.
+ * @name: name of this fixed-rate clock.
+ * @parent_name: optional parent clock name.
+ * @flags: optional fixed-rate clock flags.
+ * @fixed-rate: fixed clock rate of this clock.
+ */
+struct samsung_fixed_rate_clock {
+	unsigned int		id;
+	char			*name;
+	const char		*parent_name;
+	unsigned long		flags;
+	unsigned long		fixed_rate;
+};
+
+#define FRATE(_id, cname, pname, f, frate)		\
+	{						\
+		.id		= _id,			\
+		.name		= cname,		\
+		.parent_name	= pname,		\
+		.flags		= f,			\
+		.fixed_rate	= frate,		\
+	}
+
+/*
+ * struct samsung_fixed_factor_clock: information about fixed-factor clock
+ * @id: platform specific id of the clock.
+ * @name: name of this fixed-factor clock.
+ * @parent_name: parent clock name.
+ * @mult: fixed multiplication factor.
+ * @div: fixed division factor.
+ * @flags: optional fixed-factor clock flags.
+ */
+struct samsung_fixed_factor_clock {
+	unsigned int		id;
+	char			*name;
+	const char		*parent_name;
+	unsigned long		mult;
+	unsigned long		div;
+	unsigned long		flags;
+};
+
+#define FFACTOR(_id, cname, pname, m, d, f)		\
+	{						\
+		.id		= _id,			\
+		.name		= cname,		\
+		.parent_name	= pname,		\
+		.mult		= m,			\
+		.div		= d,			\
+		.flags		= f,			\
+	}
+
+/**
+ * struct samsung_mux_clock: information about mux clock
+ * @id: platform specific id of the clock.
+ * @dev_name: name of the device to which this clock belongs.
+ * @name: name of this mux clock.
+ * @parent_names: array of pointer to parent clock names.
+ * @num_parents: number of parents listed in @parent_names.
+ * @flags: optional flags for basic clock.
+ * @offset: offset of the register for configuring the mux.
+ * @shift: starting bit location of the mux control bit-field in @reg.
+ * @width: width of the mux control bit-field in @reg.
+ * @mux_flags: flags for mux-type clock.
+ * @alias: optional clock alias name to be assigned to this clock.
+ */
+struct samsung_mux_clock {
+	unsigned int		id;
+	const char		*dev_name;
+	const char		*name;
+	const char		**parent_names;
+	u8			num_parents;
+	unsigned long		flags;
+	unsigned long		offset;
+	u8			shift;
+	u8			width;
+	u8			mux_flags;
+	const char		*alias;
+};
+
+#define __MUX(_id, dname, cname, pnames, o, s, w, f, mf, a)	\
+	{							\
+		.id		= _id,				\
+		.dev_name	= dname,			\
+		.name		= cname,			\
+		.parent_names	= pnames,			\
+		.num_parents	= ARRAY_SIZE(pnames),		\
+		.flags		= f,				\
+		.offset		= o,				\
+		.shift		= s,				\
+		.width		= w,				\
+		.mux_flags	= mf,				\
+		.alias		= a,				\
+	}
+
+#define MUX(_id, cname, pnames, o, s, w)			\
+	__MUX(_id, NULL, cname, pnames, o, s, w, 0, 0, NULL)
+
+#define MUX_A(_id, cname, pnames, o, s, w, a)			\
+	__MUX(_id, NULL, cname, pnames, o, s, w, 0, 0, a)
+
+#define MUX_F(_id, cname, pnames, o, s, w, f, mf)		\
+	__MUX(_id, NULL, cname, pnames, o, s, w, f, mf, NULL)
+
+/**
+ * @id: platform specific id of the clock.
+ * struct samsung_div_clock: information about div clock
+ * @dev_name: name of the device to which this clock belongs.
+ * @name: name of this div clock.
+ * @parent_name: name of the parent clock.
+ * @flags: optional flags for basic clock.
+ * @offset: offset of the register for configuring the div.
+ * @shift: starting bit location of the div control bit-field in @reg.
+ * @div_flags: flags for div-type clock.
+ * @alias: optional clock alias name to be assigned to this clock.
+ */
+struct samsung_div_clock {
+	unsigned int		id;
+	const char		*dev_name;
+	const char		*name;
+	const char		*parent_name;
+	unsigned long		flags;
+	unsigned long		offset;
+	u8			shift;
+	u8			width;
+	u8			div_flags;
+	const char		*alias;
+	struct clk_div_table	*table;
+};
+
+#define __DIV(_id, dname, cname, pname, o, s, w, f, df, a, t)	\
+	{							\
+		.id		= _id,				\
+		.dev_name	= dname,			\
+		.name		= cname,			\
+		.parent_name	= pname,			\
+		.flags		= f,				\
+		.offset		= o,				\
+		.shift		= s,				\
+		.width		= w,				\
+		.div_flags	= df,				\
+		.alias		= a,				\
+		.table		= t,				\
+	}
+
+#define DIV(_id, cname, pname, o, s, w)				\
+	__DIV(_id, NULL, cname, pname, o, s, w, 0, 0, NULL, NULL)
+
+#define DIV_A(_id, cname, pname, o, s, w, a)			\
+	__DIV(_id, NULL, cname, pname, o, s, w, 0, 0, a, NULL)
+
+#define DIV_F(_id, cname, pname, o, s, w, f, df)		\
+	__DIV(_id, NULL, cname, pname, o, s, w, f, df, NULL, NULL)
+
+#define DIV_T(_id, cname, pname, o, s, w, t)			\
+	__DIV(_id, NULL, cname, pname, o, s, w, 0, 0, NULL, t)
+
+/**
+ * struct samsung_gate_clock: information about gate clock
+ * @id: platform specific id of the clock.
+ * @dev_name: name of the device to which this clock belongs.
+ * @name: name of this gate clock.
+ * @parent_name: name of the parent clock.
+ * @flags: optional flags for basic clock.
+ * @offset: offset of the register for configuring the gate.
+ * @bit_idx: bit index of the gate control bit-field in @reg.
+ * @gate_flags: flags for gate-type clock.
+ * @alias: optional clock alias name to be assigned to this clock.
+ */
+struct samsung_gate_clock {
+	unsigned int		id;
+	const char		*dev_name;
+	const char		*name;
+	const char		*parent_name;
+	unsigned long		flags;
+	unsigned long		offset;
+	u8			bit_idx;
+	u8			gate_flags;
+	const char		*alias;
+};
+
+#define __GATE(_id, dname, cname, pname, o, b, f, gf, a)	\
+	{							\
+		.id		= _id,				\
+		.dev_name	= dname,			\
+		.name		= cname,			\
+		.parent_name	= pname,			\
+		.flags		= f,				\
+		.offset		= o,				\
+		.bit_idx	= b,				\
+		.gate_flags	= gf,				\
+		.alias		= a,				\
+	}
+
+#define GATE(_id, cname, pname, o, b, f, gf)			\
+	__GATE(_id, NULL, cname, pname, o, b, f, gf, NULL)
+
+#define GATE_A(_id, cname, pname, o, b, f, gf, a)		\
+	__GATE(_id, NULL, cname, pname, o, b, f, gf, a)
+
+#define GATE_D(_id, dname, cname, pname, o, b, f, gf)		\
+	__GATE(_id, dname, cname, pname, o, b, f, gf, NULL)
+
+#define GATE_DA(_id, dname, cname, pname, o, b, f, gf, a)	\
+	__GATE(_id, dname, cname, pname, o, b, f, gf, a)
+
+#define PNAME(x) static const char *x[] __initdata
+
+/**
+ * struct samsung_clk_reg_dump: register dump of clock controller registers.
+ * @offset: clock register offset from the controller base address.
+ * @value: the value to be register at offset.
+ */
+struct samsung_clk_reg_dump {
+	u32	offset;
+	u32	value;
+};
+
+extern void __init samsung_clk_init(struct device_node *np, void __iomem *base,
+		unsigned long nr_clks, unsigned long *rdump,
+		unsigned long nr_rdump, unsigned long *soc_rdump,
+		unsigned long nr_soc_rdump);
+extern void __init samsung_clk_of_register_fixed_ext(
+		struct samsung_fixed_rate_clock *fixed_rate_clk,
+		unsigned int nr_fixed_rate_clk,
+		struct of_device_id *clk_matches);
+
+extern void samsung_clk_add_lookup(struct clk *clk, unsigned int id);
+
+extern void samsung_clk_register_alias(struct samsung_clock_alias *list,
+		unsigned int nr_clk);
+extern void __init samsung_clk_register_fixed_rate(
+		struct samsung_fixed_rate_clock *clk_list, unsigned int nr_clk);
+extern void __init samsung_clk_register_fixed_factor(
+		struct samsung_fixed_factor_clock *list, unsigned int nr_clk);
+extern void __init samsung_clk_register_mux(struct samsung_mux_clock *clk_list,
+		unsigned int nr_clk);
+extern void __init samsung_clk_register_div(struct samsung_div_clock *clk_list,
+		unsigned int nr_clk);
+extern void __init samsung_clk_register_gate(
+		struct samsung_gate_clock *clk_list, unsigned int nr_clk);
+
+extern unsigned long _get_rate(const char *clk_name);
+
+#endif /* __SAMSUNG_CLK_H */