imx: mx8m: add clock driver

Add clock driver to support i.MX8M.

There are two kind PLLs, FRAC pll and SSCG pll. ROM already
configured SYS PLL1/2, we only need to configure the output.
ocotp/i2c/pll decoding and configuration/usdhc/lcdif/dram pll/
enet clock are configured in the code.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>

4 files changed, 2201 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-mx8m/clock.h b/arch/arm/include/asm/arch-mx8m/clock.h
new file mode 100644
index 0000000..555512b
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx8m/clock.h
@@ -0,0 +1,657 @@
+/*
+ * Copyright 2017 NXP
+ *
+ * Peng Fan <peng.fan@nxp.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_IMX8M_CLOCK_H
+#define _ASM_ARCH_IMX8M_CLOCK_H
+
+#include <linux/bitops.h>
+
+enum pll_clocks {
+	ANATOP_ARM_PLL,
+	ANATOP_GPU_PLL,
+	ANATOP_SYSTEM_PLL1,
+	ANATOP_SYSTEM_PLL2,
+	ANATOP_SYSTEM_PLL3,
+	ANATOP_AUDIO_PLL1,
+	ANATOP_AUDIO_PLL2,
+	ANATOP_VIDEO_PLL1,
+	ANATOP_VIDEO_PLL2,
+	ANATOP_DRAM_PLL,
+};
+
+enum clk_slice_type {
+	CORE_CLOCK_SLICE,
+	BUS_CLOCK_SLICE,
+	IP_CLOCK_SLICE,
+	AHB_CLOCK_SLICE,
+	IPG_CLOCK_SLICE,
+	CORE_SEL_CLOCK_SLICE,
+	DRAM_SEL_CLOCK_SLICE,
+};
+
+enum clk_root_index {
+	MXC_ARM_CLK			= 0,
+	ARM_A53_CLK_ROOT		= 0,
+	ARM_M4_CLK_ROOT			= 1,
+	VPU_A53_CLK_ROOT		= 2,
+	GPU_CORE_CLK_ROOT		= 3,
+	GPU_SHADER_CLK_ROOT		= 4,
+	MAIN_AXI_CLK_ROOT		= 16,
+	ENET_AXI_CLK_ROOT		= 17,
+	NAND_USDHC_BUS_CLK_ROOT		= 18,
+	VPU_BUS_CLK_ROOT		= 19,
+	DISPLAY_AXI_CLK_ROOT		= 20,
+	DISPLAY_APB_CLK_ROOT		= 21,
+	DISPLAY_RTRM_CLK_ROOT		= 22,
+	USB_BUS_CLK_ROOT		= 23,
+	GPU_AXI_CLK_ROOT		= 24,
+	GPU_AHB_CLK_ROOT		= 25,
+	NOC_CLK_ROOT			= 26,
+	NOC_APB_CLK_ROOT		= 27,
+	AHB_CLK_ROOT			= 32,
+	IPG_CLK_ROOT			= 33,
+	MXC_IPG_CLK			= 33,
+	AUDIO_AHB_CLK_ROOT		= 34,
+	MIPI_DSI_ESC_RX_CLK_ROOT	= 36,
+	DRAM_SEL_CFG			= 48,
+	CORE_SEL_CFG			= 49,
+	DRAM_ALT_CLK_ROOT		= 64,
+	DRAM_APB_CLK_ROOT		= 65,
+	VPU_G1_CLK_ROOT			= 66,
+	VPU_G2_CLK_ROOT			= 67,
+	DISPLAY_DTRC_CLK_ROOT		= 68,
+	DISPLAY_DC8000_CLK_ROOT		= 69,
+	PCIE1_CTRL_CLK_ROOT		= 70,
+	PCIE1_PHY_CLK_ROOT		= 71,
+	PCIE1_AUX_CLK_ROOT		= 72,
+	DC_PIXEL_CLK_ROOT		= 73,
+	LCDIF_PIXEL_CLK_ROOT		= 74,
+	SAI1_CLK_ROOT			= 75,
+	SAI2_CLK_ROOT			= 76,
+	SAI3_CLK_ROOT			= 77,
+	SAI4_CLK_ROOT			= 78,
+	SAI5_CLK_ROOT			= 79,
+	SAI6_CLK_ROOT			= 80,
+	SPDIF1_CLK_ROOT			= 81,
+	SPDIF2_CLK_ROOT			= 82,
+	ENET_REF_CLK_ROOT		= 83,
+	ENET_TIMER_CLK_ROOT		= 84,
+	ENET_PHY_REF_CLK_ROOT		= 85,
+	NAND_CLK_ROOT			= 86,
+	QSPI_CLK_ROOT			= 87,
+	MXC_ESDHC_CLK			= 88,
+	USDHC1_CLK_ROOT			= 88,
+	MXC_ESDHC2_CLK			= 89,
+	USDHC2_CLK_ROOT			= 89,
+	I2C1_CLK_ROOT			= 90,
+	MXC_I2C_CLK			= 90,
+	I2C2_CLK_ROOT			= 91,
+	I2C3_CLK_ROOT			= 92,
+	I2C4_CLK_ROOT			= 93,
+	UART1_CLK_ROOT			= 94,
+	UART2_CLK_ROOT			= 95,
+	UART3_CLK_ROOT			= 96,
+	UART4_CLK_ROOT			= 97,
+	USB_CORE_REF_CLK_ROOT		= 98,
+	USB_PHY_REF_CLK_ROOT		= 99,
+	GIC_CLK_ROOT			= 100,
+	ECSPI1_CLK_ROOT			= 101,
+	ECSPI2_CLK_ROOT			= 102,
+	PWM1_CLK_ROOT			= 103,
+	PWM2_CLK_ROOT			= 104,
+	PWM3_CLK_ROOT			= 105,
+	PWM4_CLK_ROOT			= 106,
+	GPT1_CLK_ROOT			= 107,
+	GPT2_CLK_ROOT			= 108,
+	GPT3_CLK_ROOT			= 109,
+	GPT4_CLK_ROOT			= 110,
+	GPT5_CLK_ROOT			= 111,
+	GPT6_CLK_ROOT			= 112,
+	TRACE_CLK_ROOT			= 113,
+	WDOG_CLK_ROOT			= 114,
+	WRCLK_CLK_ROOT			= 115,
+	IPP_DO_CLKO1			= 116,
+	IPP_DO_CLKO2			= 117,
+	MIPI_DSI_CORE_CLK_ROOT		= 118,
+	MIPI_DSI_PHY_REF_CLK_ROOT	= 119,
+	MIPI_DSI_DBI_CLK_ROOT		= 120,
+	OLD_MIPI_DSI_ESC_CLK_ROOT	= 121,
+	MIPI_CSI1_CORE_CLK_ROOT		= 122,
+	MIPI_CSI1_PHY_REF_CLK_ROOT	= 123,
+	MIPI_CSI1_ESC_CLK_ROOT		= 124,
+	MIPI_CSI2_CORE_CLK_ROOT		= 125,
+	MIPI_CSI2_PHY_REF_CLK_ROOT	= 126,
+	MIPI_CSI2_ESC_CLK_ROOT		= 127,
+	PCIE2_CTRL_CLK_ROOT		= 128,
+	PCIE2_PHY_CLK_ROOT		= 129,
+	PCIE2_AUX_CLK_ROOT		= 130,
+	ECSPI3_CLK_ROOT			= 131,
+	OLD_MIPI_DSI_ESC_RX_ROOT	= 132,
+	DISPLAY_HDMI_CLK_ROOT		= 133,
+	CLK_ROOT_MAX,
+};
+
+enum clk_root_src {
+	OSC_25M_CLK,
+	ARM_PLL_CLK,
+	DRAM_PLL1_CLK,
+	VIDEO_PLL2_CLK,
+	VPU_PLL_CLK,
+	GPU_PLL_CLK,
+	SYSTEM_PLL1_800M_CLK,
+	SYSTEM_PLL1_400M_CLK,
+	SYSTEM_PLL1_266M_CLK,
+	SYSTEM_PLL1_200M_CLK,
+	SYSTEM_PLL1_160M_CLK,
+	SYSTEM_PLL1_133M_CLK,
+	SYSTEM_PLL1_100M_CLK,
+	SYSTEM_PLL1_80M_CLK,
+	SYSTEM_PLL1_40M_CLK,
+	SYSTEM_PLL2_1000M_CLK,
+	SYSTEM_PLL2_500M_CLK,
+	SYSTEM_PLL2_333M_CLK,
+	SYSTEM_PLL2_250M_CLK,
+	SYSTEM_PLL2_200M_CLK,
+	SYSTEM_PLL2_166M_CLK,
+	SYSTEM_PLL2_125M_CLK,
+	SYSTEM_PLL2_100M_CLK,
+	SYSTEM_PLL2_50M_CLK,
+	SYSTEM_PLL3_CLK,
+	AUDIO_PLL1_CLK,
+	AUDIO_PLL2_CLK,
+	VIDEO_PLL_CLK,
+	OSC_32K_CLK,
+	EXT_CLK_1,
+	EXT_CLK_2,
+	EXT_CLK_3,
+	EXT_CLK_4,
+	OSC_27M_CLK,
+};
+
+/* CCGR index */
+enum clk_ccgr_index {
+	CCGR_DVFS = 0,
+	CCGR_ANAMIX = 1,
+	CCGR_CPU = 2,
+	CCGR_CSU = 4,
+	CCGR_DRAM1 = 5,
+	CCGR_DRAM2_OBSOLETE = 6,
+	CCGR_ECSPI1 = 7,
+	CCGR_ECSPI2 = 8,
+	CCGR_ECSPI3 = 9,
+	CCGR_ENET1 = 10,
+	CCGR_GPIO1 = 11,
+	CCGR_GPIO2 = 12,
+	CCGR_GPIO3 = 13,
+	CCGR_GPIO4 = 14,
+	CCGR_GPIO5 = 15,
+	CCGR_GPT1 = 16,
+	CCGR_GPT2 = 17,
+	CCGR_GPT3 = 18,
+	CCGR_GPT4 = 19,
+	CCGR_GPT5 = 20,
+	CCGR_GPT6 = 21,
+	CCGR_HS = 22,
+	CCGR_I2C1 = 23,
+	CCGR_I2C2 = 24,
+	CCGR_I2C3 = 25,
+	CCGR_I2C4 = 26,
+	CCGR_IOMUX = 27,
+	CCGR_IOMUX1 = 28,
+	CCGR_IOMUX2 = 29,
+	CCGR_IOMUX3 = 30,
+	CCGR_IOMUX4 = 31,
+	CCGR_M4 = 32,
+	CCGR_MU = 33,
+	CCGR_OCOTP = 34,
+	CCGR_OCRAM = 35,
+	CCGR_OCRAM_S = 36,
+	CCGR_PCIE = 37,
+	CCGR_PERFMON1 = 38,
+	CCGR_PERFMON2 = 39,
+	CCGR_PWM1 = 40,
+	CCGR_PWM2 = 41,
+	CCGR_PWM3 = 42,
+	CCGR_PWM4 = 43,
+	CCGR_QOS = 44,
+	CCGR_DISMIX = 45,
+	CCGR_MEGAMIX = 46,
+	CCGR_QSPI = 47,
+	CCGR_RAWNAND = 48,
+	CCGR_RDC = 49,
+	CCGR_ROM = 50,
+	CCGR_SAI1 = 51,
+	CCGR_SAI2 = 52,
+	CCGR_SAI3 = 53,
+	CCGR_SAI4 = 54,
+	CCGR_SAI5 = 55,
+	CCGR_SAI6 = 56,
+	CCGR_SCTR = 57,
+	CCGR_SDMA1 = 58,
+	CCGR_SDMA2 = 59,
+	CCGR_SEC_DEBUG = 60,
+	CCGR_SEMA1 = 61,
+	CCGR_SEMA2 = 62,
+	CCGR_SIM_DISPLAY = 63,
+	CCGR_SIM_ENET = 64,
+	CCGR_SIM_M = 65,
+	CCGR_SIM_MAIN = 66,
+	CCGR_SIM_S = 67,
+	CCGR_SIM_WAKEUP = 68,
+	CCGR_SIM_USB = 69,
+	CCGR_SIM_VPU = 70,
+	CCGR_SNVS = 71,
+	CCGR_TRACE = 72,
+	CCGR_UART1 = 73,
+	CCGR_UART2 = 74,
+	CCGR_UART3 = 75,
+	CCGR_UART4 = 76,
+	CCGR_USB_CTRL1 = 77,
+	CCGR_USB_CTRL2 = 78,
+	CCGR_USB_PHY1 = 79,
+	CCGR_USB_PHY2 = 80,
+	CCGR_USDHC1 = 81,
+	CCGR_USDHC2 = 82,
+	CCGR_WDOG1 = 83,
+	CCGR_WDOG2 = 84,
+	CCGR_WDOG3 = 85,
+	CCGR_VA53 = 86,
+	CCGR_GPU = 87,
+	CCGR_HEVC = 88,
+	CCGR_AVC = 89,
+	CCGR_VP9 = 90,
+	CCGR_HEVC_INTER = 91,
+	CCGR_GIC = 92,
+	CCGR_DISPLAY = 93,
+	CCGR_HDMI = 94,
+	CCGR_HDMI_PHY = 95,
+	CCGR_XTAL = 96,
+	CCGR_PLL = 97,
+	CCGR_TSENSOR = 98,
+	CCGR_VPU_DEC = 99,
+	CCGR_PCIE2 = 100,
+	CCGR_MIPI_CSI1 = 101,
+	CCGR_MIPI_CSI2 = 102,
+	CCGR_MAX,
+};
+
+/* src index */
+enum clk_src_index {
+	CLK_SRC_CKIL_SYNC_REQ = 0,
+	CLK_SRC_ARM_PLL_EN = 1,
+	CLK_SRC_GPU_PLL_EN = 2,
+	CLK_SRC_VPU_PLL_EN = 3,
+	CLK_SRC_DRAM_PLL_EN = 4,
+	CLK_SRC_SYSTEM_PLL1_EN = 5,
+	CLK_SRC_SYSTEM_PLL2_EN = 6,
+	CLK_SRC_SYSTEM_PLL3_EN = 7,
+	CLK_SRC_AUDIO_PLL1_EN = 8,
+	CLK_SRC_AUDIO_PLL2_EN = 9,
+	CLK_SRC_VIDEO_PLL1_EN = 10,
+	CLK_SRC_VIDEO_PLL2_EN = 11,
+	CLK_SRC_ARM_PLL = 12,
+	CLK_SRC_GPU_PLL = 13,
+	CLK_SRC_VPU_PLL = 14,
+	CLK_SRC_DRAM_PLL = 15,
+	CLK_SRC_SYSTEM_PLL1_800M = 16,
+	CLK_SRC_SYSTEM_PLL1_400M = 17,
+	CLK_SRC_SYSTEM_PLL1_266M = 18,
+	CLK_SRC_SYSTEM_PLL1_200M = 19,
+	CLK_SRC_SYSTEM_PLL1_160M = 20,
+	CLK_SRC_SYSTEM_PLL1_133M = 21,
+	CLK_SRC_SYSTEM_PLL1_100M = 22,
+	CLK_SRC_SYSTEM_PLL1_80M = 23,
+	CLK_SRC_SYSTEM_PLL1_40M = 24,
+	CLK_SRC_SYSTEM_PLL2_1000M = 25,
+	CLK_SRC_SYSTEM_PLL2_500M = 26,
+	CLK_SRC_SYSTEM_PLL2_333M = 27,
+	CLK_SRC_SYSTEM_PLL2_250M = 28,
+	CLK_SRC_SYSTEM_PLL2_200M = 29,
+	CLK_SRC_SYSTEM_PLL2_166M = 30,
+	CLK_SRC_SYSTEM_PLL2_125M = 31,
+	CLK_SRC_SYSTEM_PLL2_100M = 32,
+	CLK_SRC_SYSTEM_PLL2_50M = 33,
+	CLK_SRC_SYSTEM_PLL3 = 34,
+	CLK_SRC_AUDIO_PLL1 = 35,
+	CLK_SRC_AUDIO_PLL2 = 36,
+	CLK_SRC_VIDEO_PLL1 = 37,
+	CLK_SRC_VIDEO_PLL2 = 38,
+	CLK_SRC_OSC_25M = 39,
+	CLK_SRC_OSC_27M = 40,
+};
+
+enum root_pre_div {
+	CLK_ROOT_PRE_DIV1 = 0,
+	CLK_ROOT_PRE_DIV2,
+	CLK_ROOT_PRE_DIV3,
+	CLK_ROOT_PRE_DIV4,
+	CLK_ROOT_PRE_DIV5,
+	CLK_ROOT_PRE_DIV6,
+	CLK_ROOT_PRE_DIV7,
+	CLK_ROOT_PRE_DIV8,
+};
+
+enum root_post_div {
+	CLK_ROOT_POST_DIV1 = 0,
+	CLK_ROOT_POST_DIV2,
+	CLK_ROOT_POST_DIV3,
+	CLK_ROOT_POST_DIV4,
+	CLK_ROOT_POST_DIV5,
+	CLK_ROOT_POST_DIV6,
+	CLK_ROOT_POST_DIV7,
+	CLK_ROOT_POST_DIV8,
+	CLK_ROOT_POST_DIV9,
+	CLK_ROOT_POST_DIV10,
+	CLK_ROOT_POST_DIV11,
+	CLK_ROOT_POST_DIV12,
+	CLK_ROOT_POST_DIV13,
+	CLK_ROOT_POST_DIV14,
+	CLK_ROOT_POST_DIV15,
+	CLK_ROOT_POST_DIV16,
+	CLK_ROOT_POST_DIV17,
+	CLK_ROOT_POST_DIV18,
+	CLK_ROOT_POST_DIV19,
+	CLK_ROOT_POST_DIV20,
+	CLK_ROOT_POST_DIV21,
+	CLK_ROOT_POST_DIV22,
+	CLK_ROOT_POST_DIV23,
+	CLK_ROOT_POST_DIV24,
+	CLK_ROOT_POST_DIV25,
+	CLK_ROOT_POST_DIV26,
+	CLK_ROOT_POST_DIV27,
+	CLK_ROOT_POST_DIV28,
+	CLK_ROOT_POST_DIV29,
+	CLK_ROOT_POST_DIV30,
+	CLK_ROOT_POST_DIV31,
+	CLK_ROOT_POST_DIV32,
+	CLK_ROOT_POST_DIV33,
+	CLK_ROOT_POST_DIV34,
+	CLK_ROOT_POST_DIV35,
+	CLK_ROOT_POST_DIV36,
+	CLK_ROOT_POST_DIV37,
+	CLK_ROOT_POST_DIV38,
+	CLK_ROOT_POST_DIV39,
+	CLK_ROOT_POST_DIV40,
+	CLK_ROOT_POST_DIV41,
+	CLK_ROOT_POST_DIV42,
+	CLK_ROOT_POST_DIV43,
+	CLK_ROOT_POST_DIV44,
+	CLK_ROOT_POST_DIV45,
+	CLK_ROOT_POST_DIV46,
+	CLK_ROOT_POST_DIV47,
+	CLK_ROOT_POST_DIV48,
+	CLK_ROOT_POST_DIV49,
+	CLK_ROOT_POST_DIV50,
+	CLK_ROOT_POST_DIV51,
+	CLK_ROOT_POST_DIV52,
+	CLK_ROOT_POST_DIV53,
+	CLK_ROOT_POST_DIV54,
+	CLK_ROOT_POST_DIV55,
+	CLK_ROOT_POST_DIV56,
+	CLK_ROOT_POST_DIV57,
+	CLK_ROOT_POST_DIV58,
+	CLK_ROOT_POST_DIV59,
+	CLK_ROOT_POST_DIV60,
+	CLK_ROOT_POST_DIV61,
+	CLK_ROOT_POST_DIV62,
+	CLK_ROOT_POST_DIV63,
+	CLK_ROOT_POST_DIV64,
+};
+
+struct clk_root_map {
+	enum clk_root_index entry;
+	enum clk_slice_type slice_type;
+	u32 slice_index;
+	u8 src_mux[8];
+};
+
+struct ccm_ccgr {
+	u32 ccgr;
+	u32 ccgr_set;
+	u32 ccgr_clr;
+	u32 ccgr_tog;
+};
+
+struct ccm_root {
+	u32 target_root;
+	u32 target_root_set;
+	u32 target_root_clr;
+	u32 target_root_tog;
+	u32 misc;
+	u32 misc_set;
+	u32 misc_clr;
+	u32 misc_tog;
+	u32 nm_post;
+	u32 nm_post_root_set;
+	u32 nm_post_root_clr;
+	u32 nm_post_root_tog;
+	u32 nm_pre;
+	u32 nm_pre_root_set;
+	u32 nm_pre_root_clr;
+	u32 nm_pre_root_tog;
+	u32 db_post;
+	u32 db_post_root_set;
+	u32 db_post_root_clr;
+	u32 db_post_root_tog;
+	u32 db_pre;
+	u32 db_pre_root_set;
+	u32 db_pre_root_clr;
+	u32 db_pre_root_tog;
+	u32 reserved[4];
+	u32 access_ctrl;
+	u32 access_ctrl_root_set;
+	u32 access_ctrl_root_clr;
+	u32 access_ctrl_root_tog;
+};
+
+struct ccm_reg {
+	u32 reserved_0[4096];
+	struct ccm_ccgr ccgr_array[192];
+	u32 reserved_1[3328];
+	struct ccm_root core_root[5];
+	u32 reserved_2[352];
+	struct ccm_root bus_root[12];
+	u32 reserved_3[128];
+	struct ccm_root ahb_ipg_root[4];
+	u32 reserved_4[384];
+	struct ccm_root dram_sel;
+	struct ccm_root core_sel;
+	u32 reserved_5[448];
+	struct ccm_root ip_root[78];
+};
+
+#define CCGR_CLK_ON_MASK	0x03
+#define CLK_SRC_ON_MASK		0x03
+
+#define CLK_ROOT_ON		BIT(28)
+#define CLK_ROOT_OFF		(0 << 28)
+#define CLK_ROOT_ENABLE_MASK	BIT(28)
+#define CLK_ROOT_ENABLE_SHIFT	28
+#define CLK_ROOT_SOURCE_SEL(n)	(((n) & 0x7) << 24)
+
+/* For SEL, only use 1 bit */
+#define CLK_ROOT_SRC_MUX_MASK	0x07000000
+#define CLK_ROOT_SRC_MUX_SHIFT	24
+#define CLK_ROOT_SRC_0		0x00000000
+#define CLK_ROOT_SRC_1		0x01000000
+#define CLK_ROOT_SRC_2		0x02000000
+#define CLK_ROOT_SRC_3		0x03000000
+#define CLK_ROOT_SRC_4		0x04000000
+#define CLK_ROOT_SRC_5		0x05000000
+#define CLK_ROOT_SRC_6		0x06000000
+#define CLK_ROOT_SRC_7		0x07000000
+
+#define CLK_ROOT_PRE_DIV_MASK	(0x00070000)
+#define CLK_ROOT_PRE_DIV_SHIFT	16
+#define CLK_ROOT_PRE_DIV(n)	(((n) << 16) & 0x00070000)
+
+#define CLK_ROOT_AUDO_SLOW_EN	0x1000
+
+#define CLK_ROOT_AUDO_DIV_MASK	0x700
+#define CLK_ROOT_AUDO_DIV_SHIFT	0x8
+#define CLK_ROOT_AUDO_DIV(n)	(((n) << 8) & 0x700)
+
+/* For CORE: mask is 0x7; For IPG: mask is 0x3 */
+#define CLK_ROOT_POST_DIV_MASK		0x3f
+#define CLK_ROOT_CORE_POST_DIV_MASK	0x7
+#define CLK_ROOT_IPG_POST_DIV_MASK	0x3
+#define CLK_ROOT_POST_DIV_SHIFT		0
+#define CLK_ROOT_POST_DIV(n)		((n) & 0x3f)
+
+/* AUDIO PLL1/2 VIDEO PLL1 GPU PLL VPU PLL ARM PLL*/
+#define FRAC_PLL_LOCK_MASK		BIT(31)
+#define FRAC_PLL_CLKE_MASK		BIT(21)
+#define FRAC_PLL_PD_MASK		BIT(19)
+#define FRAC_PLL_REFCLK_SEL_MASK	BIT(16)
+#define FRAC_PLL_LOCK_SEL_MASK		BIT(15)
+#define FRAC_PLL_BYPASS_MASK		BIT(14)
+#define FRAC_PLL_COUNTCLK_SEL_MASK	BIT(13)
+#define FRAC_PLL_NEWDIV_VAL_MASK	BIT(12)
+#define FRAC_PLL_NEWDIV_ACK_MASK	BIT(11)
+#define FRAC_PLL_REFCLK_DIV_VAL(n)	(((n) << 5) & (0x3f << 5))
+#define FRAC_PLL_REFCLK_DIV_VAL_MASK	(0x3f << 5)
+#define FRAC_PLL_REFCLK_DIV_VAL_SHIFT	5
+#define FRAC_PLL_OUTPUT_DIV_VAL_MASK	0x1f
+#define FRAC_PLL_OUTPUT_DIV_VAL(n)	((n) & 0x1f)
+
+#define FRAC_PLL_REFCLK_SEL_OSC_25M	(0 << 16)
+#define FRAC_PLL_REFCLK_SEL_OSC_27M	BIT(16)
+#define FRAC_PLL_REFCLK_SEL_HDMI_PHY_27M (2 << 16)
+#define FRAC_PLL_REFCLK_SEL_CLK_PN	(3 << 16)
+
+#define FRAC_PLL_FRAC_DIV_CTL_MASK	(0x1ffffff << 7)
+#define FRAC_PLL_FRAC_DIV_CTL_SHIFT	7
+#define FRAC_PLL_INT_DIV_CTL_MASK	0x7f
+#define FRAC_PLL_INT_DIV_CTL_VAL(n)	((n) & 0x7f)
+
+/* SYS PLL1/2/3 VIDEO PLL2 DRAM PLL */
+#define SSCG_PLL_LOCK_MASK		BIT(31)
+#define SSCG_PLL_CLKE_MASK		BIT(25)
+#define SSCG_PLL_DIV2_CLKE_MASK		BIT(23)
+#define SSCG_PLL_DIV3_CLKE_MASK		BIT(21)
+#define SSCG_PLL_DIV4_CLKE_MASK		BIT(19)
+#define SSCG_PLL_DIV5_CLKE_MASK		BIT(17)
+#define SSCG_PLL_DIV6_CLKE_MASK		BIT(15)
+#define SSCG_PLL_DIV8_CLKE_MASK		BIT(13)
+#define SSCG_PLL_DIV10_CLKE_MASK	BIT(11)
+#define SSCG_PLL_DIV20_CLKE_MASK	BIT(9)
+#define SSCG_PLL_VIDEO_PLL2_CLKE_MASK	BIT(9)
+#define SSCG_PLL_DRAM_PLL_CLKE_MASK	BIT(9)
+#define SSCG_PLL_PLL3_CLKE_MASK		BIT(9)
+#define SSCG_PLL_PD_MASK		BIT(7)
+#define SSCG_PLL_BYPASS1_MASK		BIT(5)
+#define SSCG_PLL_BYPASS2_MASK		BIT(4)
+#define SSCG_PLL_LOCK_SEL_MASK		BIT(3)
+#define SSCG_PLL_COUNTCLK_SEL_MASK	BIT(2)
+#define SSCG_PLL_REFCLK_SEL_MASK	0x3
+#define SSCG_PLL_REFCLK_SEL_OSC_25M	(0 << 16)
+#define SSCG_PLL_REFCLK_SEL_OSC_27M	BIT(16)
+#define SSCG_PLL_REFCLK_SEL_HDMI_PHY_27M (2 << 16)
+#define SSCG_PLL_REFCLK_SEL_CLK_PN	(3 << 16)
+
+#define SSCG_PLL_SSDS_MASK		BIT(8)
+#define SSCG_PLL_SSMD_MASK		(0x7 << 5)
+#define SSCG_PLL_SSMF_MASK		(0xf << 1)
+#define SSCG_PLL_SSE_MASK		0x1
+
+#define SSCG_PLL_REF_DIVR1_MASK		(0x7 << 25)
+#define SSCG_PLL_REF_DIVR1_SHIFT	25
+#define SSCG_PLL_REF_DIVR1_VAL(n)	(((n) << 25) & SSCG_PLL_REF_DIVR1_MASK)
+#define SSCG_PLL_REF_DIVR2_MASK		(0x3f << 19)
+#define SSCG_PLL_REF_DIVR2_SHIFT	19
+#define SSCG_PLL_REF_DIVR2_VAL(n)	(((n) << 19) & SSCG_PLL_REF_DIVR2_MASK)
+#define SSCG_PLL_FEEDBACK_DIV_F1_MASK	(0x3f << 13)
+#define SSCG_PLL_FEEDBACK_DIV_F1_SHIFT	13
+#define SSCG_PLL_FEEDBACK_DIV_F1_VAL(n)	(((n) << 13) & \
+					 SSCG_PLL_FEEDBACK_DIV_F1_MASK)
+#define SSCG_PLL_FEEDBACK_DIV_F2_MASK	(0x3f << 7)
+#define SSCG_PLL_FEEDBACK_DIV_F2_SHIFT	7
+#define SSCG_PLL_FEEDBACK_DIV_F2_VAL(n)	(((n) << 7) & \
+					 SSCG_PLL_FEEDBACK_DIV_F2_MASK)
+#define SSCG_PLL_OUTPUT_DIV_VAL_MASK	(0x3f << 1)
+#define SSCG_PLL_OUTPUT_DIV_VAL_SHIFT	1
+#define SSCG_PLL_OUTPUT_DIV_VAL(n)	(((n) << 1) & \
+					 SSCG_PLL_OUTPUT_DIV_VAL_MASK)
+#define SSCG_PLL_FILTER_RANGE_MASK	0x1
+
+#define HW_DIGPROG_MAJOR_UPPER_MASK	(0xff << 16)
+#define HW_DIGPROG_MAJOR_LOWER_MASK	(0xff << 8)
+#define HW_DIGPROG_MINOR_MASK		0xff
+
+#define HW_OSC_27M_CLKE_MASK		BIT(4)
+#define HW_OSC_25M_CLKE_MASK		BIT(2)
+#define HW_OSC_32K_SEL_MASK		0x1
+#define HW_OSC_32K_SEL_RTC		0x1
+#define HW_OSC_32K_SEL_25M_DIV800	0x0
+
+#define HW_FRAC_ARM_PLL_DIV_MASK	(0x7 << 20)
+#define HW_FRAC_ARM_PLL_DIV_SHIFT	20
+#define HW_FRAC_VPU_PLL_DIV_MASK	(0x7 << 16)
+#define HW_FRAC_VPU_PLL_DIV_SHIFT	16
+#define HW_FRAC_GPU_PLL_DIV_MASK	(0x7 << 12)
+#define HW_FRAC_GPU_PLL_DIV_SHIFT	12
+#define HW_FRAC_VIDEO_PLL1_DIV_MASK	(0x7 << 10)
+#define HW_FRAC_VIDEO_PLL1_DIV_SHIFT	10
+#define HW_FRAC_AUDIO_PLL2_DIV_MASK	(0x7 << 4)
+#define HW_FRAC_AUDIO_PLL2_DIV_SHIFT	4
+#define HW_FRAC_AUDIO_PLL1_DIV_MASK	0x7
+#define HW_FRAC_AUDIO_PLL1_DIV_SHIFT	0
+
+#define HW_SSCG_VIDEO_PLL2_DIV_MASK	(0x7 << 16)
+#define HW_SSCG_VIDEO_PLL2_DIV_SHIFT	16
+#define HW_SSCG_DRAM_PLL_DIV_MASK	(0x7 << 14)
+#define HW_SSCG_DRAM_PLL_DIV_SHIFT	14
+#define HW_SSCG_SYSTEM_PLL3_DIV_MASK	(0x7 << 8)
+#define HW_SSCG_SYSTEM_PLL3_DIV_SHIFT	8
+#define HW_SSCG_SYSTEM_PLL2_DIV_MASK	(0x7 << 4)
+#define HW_SSCG_SYSTEM_PLL2_DIV_SHIFT	4
+#define HW_SSCG_SYSTEM_PLL1_DIV_MASK	0x7
+#define HW_SSCG_SYSTEM_PLL1_DIV_SHIFT	0
+
+#define ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK		0x01000000
+#define ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK		0x02000000
+#define ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK		0x03000000
+#define ENET_AXI_CLK_ROOT_FROM_PLL_SYS_PFD4_CLK			0x07000000
+#define ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M			0x01000000
+#define ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK		0x01000000
+#define ENET_PHY_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK	0x01000000
+
+enum enet_freq {
+	ENET_25MHZ = 0,
+	ENET_50MHZ,
+	ENET_125MHZ,
+};
+
+enum frac_pll_out_val {
+	FRAC_PLL_OUT_1000M,
+	FRAC_PLL_OUT_1600M,
+};
+
+u32 imx_get_fecclk(void);
+u32 imx_get_uartclk(void);
+int clock_init(void);
+void init_clk_usdhc(u32 index);
+void init_uart_clk(u32 index);
+void init_wdog_clk(void);
+unsigned int mxc_get_clock(enum clk_root_index clk);
+int clock_enable(enum clk_ccgr_index index, bool enable);
+int clock_root_enabled(enum clk_root_index clock_id);
+int clock_root_cfg(enum clk_root_index clock_id, enum root_pre_div pre_div,
+		   enum root_post_div post_div, enum clk_root_src clock_src);
+int clock_set_target_val(enum clk_root_index clock_id, u32 val);
+int clock_get_target_val(enum clk_root_index clock_id, u32 *val);
+int clock_get_prediv(enum clk_root_index clock_id, enum root_pre_div *pre_div);
+int clock_get_postdiv(enum clk_root_index clock_id,
+		      enum root_post_div *post_div);
+int clock_get_src(enum clk_root_index clock_id, enum clk_root_src *p_clock_src);
+void mxs_set_lcdclk(u32 base_addr, u32 freq);
+int set_clk_qspi(void);
+void enable_ocotp_clk(unsigned char enable);
+int enable_i2c_clk(unsigned char enable, unsigned int i2c_num);
+int set_clk_enet(enum enet_freq type);
+#endif
diff --git a/arch/arm/mach-imx/mx8m/Makefile b/arch/arm/mach-imx/mx8m/Makefile
new file mode 100644
index 0000000..05f3884
--- /dev/null
+++ b/arch/arm/mach-imx/mx8m/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright 2017 NXP
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += clock.o clock_slice.o
diff --git a/arch/arm/mach-imx/mx8m/clock.c b/arch/arm/mach-imx/mx8m/clock.c
new file mode 100644
index 0000000..c56ba99
--- /dev/null
+++ b/arch/arm/mach-imx/mx8m/clock.c
@@ -0,0 +1,795 @@
+/*
+ * Copyright 2017 NXP
+ *
+ * Peng Fan <peng.fan@nxp.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <errno.h>
+#include <linux/iopoll.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct anamix_pll *ana_pll = (struct anamix_pll *)ANATOP_BASE_ADDR;
+
+static u32 decode_frac_pll(enum clk_root_src frac_pll)
+{
+	u32 pll_cfg0, pll_cfg1, pllout;
+	u32 pll_refclk_sel, pll_refclk;
+	u32 divr_val, divq_val, divf_val, divff, divfi;
+	u32 pllout_div_shift, pllout_div_mask, pllout_div;
+
+	switch (frac_pll) {
+	case ARM_PLL_CLK:
+		pll_cfg0 = readl(&ana_pll->arm_pll_cfg0);
+		pll_cfg1 = readl(&ana_pll->arm_pll_cfg1);
+		pllout_div_shift = HW_FRAC_ARM_PLL_DIV_SHIFT;
+		pllout_div_mask = HW_FRAC_ARM_PLL_DIV_MASK;
+		break;
+	default:
+		printf("Frac PLL %d not supporte\n", frac_pll);
+		return 0;
+	}
+
+	pllout_div = readl(&ana_pll->frac_pllout_div_cfg);
+	pllout_div = (pllout_div & pllout_div_mask) >> pllout_div_shift;
+
+	/* Power down */
+	if (pll_cfg0 & FRAC_PLL_PD_MASK)
+		return 0;
+
+	/* output not enabled */
+	if ((pll_cfg0 & FRAC_PLL_CLKE_MASK) == 0)
+		return 0;
+
+	pll_refclk_sel = pll_cfg0 & FRAC_PLL_REFCLK_SEL_MASK;
+
+	if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_OSC_25M)
+		pll_refclk = 25000000u;
+	else if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_OSC_27M)
+		pll_refclk = 27000000u;
+	else if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_HDMI_PHY_27M)
+		pll_refclk = 27000000u;
+	else
+		pll_refclk = 0;
+
+	if (pll_cfg0 & FRAC_PLL_BYPASS_MASK)
+		return pll_refclk;
+
+	divr_val = (pll_cfg0 & FRAC_PLL_REFCLK_DIV_VAL_MASK) >>
+		FRAC_PLL_REFCLK_DIV_VAL_SHIFT;
+	divq_val = pll_cfg0 & FRAC_PLL_OUTPUT_DIV_VAL_MASK;
+
+	divff = (pll_cfg1 & FRAC_PLL_FRAC_DIV_CTL_MASK) >>
+		FRAC_PLL_FRAC_DIV_CTL_SHIFT;
+	divfi = pll_cfg1 & FRAC_PLL_INT_DIV_CTL_MASK;
+
+	divf_val = 1 + divfi + divff / (1 << 24);
+
+	pllout = pll_refclk / (divr_val + 1) * 8 * divf_val /
+		((divq_val + 1) * 2);
+
+	return pllout / (pllout_div + 1);
+}
+
+static u32 decode_sscg_pll(enum clk_root_src sscg_pll)
+{
+	u32 pll_cfg0, pll_cfg1, pll_cfg2;
+	u32 pll_refclk_sel, pll_refclk;
+	u32 divr1, divr2, divf1, divf2, divq, div;
+	u32 sse;
+	u32 pll_clke;
+	u32 pllout_div_shift, pllout_div_mask, pllout_div;
+	u32 pllout;
+
+	switch (sscg_pll) {
+	case SYSTEM_PLL1_800M_CLK:
+	case SYSTEM_PLL1_400M_CLK:
+	case SYSTEM_PLL1_266M_CLK:
+	case SYSTEM_PLL1_200M_CLK:
+	case SYSTEM_PLL1_160M_CLK:
+	case SYSTEM_PLL1_133M_CLK:
+	case SYSTEM_PLL1_100M_CLK:
+	case SYSTEM_PLL1_80M_CLK:
+	case SYSTEM_PLL1_40M_CLK:
+		pll_cfg0 = readl(&ana_pll->sys_pll1_cfg0);
+		pll_cfg1 = readl(&ana_pll->sys_pll1_cfg1);
+		pll_cfg2 = readl(&ana_pll->sys_pll1_cfg2);
+		pllout_div_shift = HW_SSCG_SYSTEM_PLL1_DIV_SHIFT;
+		pllout_div_mask = HW_SSCG_SYSTEM_PLL1_DIV_MASK;
+		break;
+	case SYSTEM_PLL2_1000M_CLK:
+	case SYSTEM_PLL2_500M_CLK:
+	case SYSTEM_PLL2_333M_CLK:
+	case SYSTEM_PLL2_250M_CLK:
+	case SYSTEM_PLL2_200M_CLK:
+	case SYSTEM_PLL2_166M_CLK:
+	case SYSTEM_PLL2_125M_CLK:
+	case SYSTEM_PLL2_100M_CLK:
+	case SYSTEM_PLL2_50M_CLK:
+		pll_cfg0 = readl(&ana_pll->sys_pll2_cfg0);
+		pll_cfg1 = readl(&ana_pll->sys_pll2_cfg1);
+		pll_cfg2 = readl(&ana_pll->sys_pll2_cfg2);
+		pllout_div_shift = HW_SSCG_SYSTEM_PLL2_DIV_SHIFT;
+		pllout_div_mask = HW_SSCG_SYSTEM_PLL2_DIV_MASK;
+		break;
+	case SYSTEM_PLL3_CLK:
+		pll_cfg0 = readl(&ana_pll->sys_pll3_cfg0);
+		pll_cfg1 = readl(&ana_pll->sys_pll3_cfg1);
+		pll_cfg2 = readl(&ana_pll->sys_pll3_cfg2);
+		pllout_div_shift = HW_SSCG_SYSTEM_PLL3_DIV_SHIFT;
+		pllout_div_mask = HW_SSCG_SYSTEM_PLL3_DIV_MASK;
+		break;
+	case DRAM_PLL1_CLK:
+		pll_cfg0 = readl(&ana_pll->dram_pll_cfg0);
+		pll_cfg1 = readl(&ana_pll->dram_pll_cfg1);
+		pll_cfg2 = readl(&ana_pll->dram_pll_cfg2);
+		pllout_div_shift = HW_SSCG_DRAM_PLL_DIV_SHIFT;
+		pllout_div_mask = HW_SSCG_DRAM_PLL_DIV_MASK;
+		break;
+	default:
+		printf("sscg pll %d not supporte\n", sscg_pll);
+		return 0;
+	}
+
+	switch (sscg_pll) {
+	case DRAM_PLL1_CLK:
+		pll_clke = SSCG_PLL_DRAM_PLL_CLKE_MASK;
+		div = 1;
+		break;
+	case SYSTEM_PLL3_CLK:
+		pll_clke = SSCG_PLL_PLL3_CLKE_MASK;
+		div = 1;
+		break;
+	case SYSTEM_PLL2_1000M_CLK:
+	case SYSTEM_PLL1_800M_CLK:
+		pll_clke = SSCG_PLL_CLKE_MASK;
+		div = 1;
+		break;
+	case SYSTEM_PLL2_500M_CLK:
+	case SYSTEM_PLL1_400M_CLK:
+		pll_clke = SSCG_PLL_DIV2_CLKE_MASK;
+		div = 2;
+		break;
+	case SYSTEM_PLL2_333M_CLK:
+	case SYSTEM_PLL1_266M_CLK:
+		pll_clke = SSCG_PLL_DIV3_CLKE_MASK;
+		div = 3;
+		break;
+	case SYSTEM_PLL2_250M_CLK:
+	case SYSTEM_PLL1_200M_CLK:
+		pll_clke = SSCG_PLL_DIV4_CLKE_MASK;
+		div = 4;
+		break;
+	case SYSTEM_PLL2_200M_CLK:
+	case SYSTEM_PLL1_160M_CLK:
+		pll_clke = SSCG_PLL_DIV5_CLKE_MASK;
+		div = 5;
+		break;
+	case SYSTEM_PLL2_166M_CLK:
+	case SYSTEM_PLL1_133M_CLK:
+		pll_clke = SSCG_PLL_DIV6_CLKE_MASK;
+		div = 6;
+		break;
+	case SYSTEM_PLL2_125M_CLK:
+	case SYSTEM_PLL1_100M_CLK:
+		pll_clke = SSCG_PLL_DIV8_CLKE_MASK;
+		div = 8;
+		break;
+	case SYSTEM_PLL2_100M_CLK:
+	case SYSTEM_PLL1_80M_CLK:
+		pll_clke = SSCG_PLL_DIV10_CLKE_MASK;
+		div = 10;
+		break;
+	case SYSTEM_PLL2_50M_CLK:
+	case SYSTEM_PLL1_40M_CLK:
+		pll_clke = SSCG_PLL_DIV20_CLKE_MASK;
+		div = 20;
+		break;
+	default:
+		printf("sscg pll %d not supporte\n", sscg_pll);
+		return 0;
+	}
+
+	/* Power down */
+	if (pll_cfg0 & SSCG_PLL_PD_MASK)
+		return 0;
+
+	/* output not enabled */
+	if ((pll_cfg0 & pll_clke) == 0)
+		return 0;
+
+	pllout_div = readl(&ana_pll->sscg_pllout_div_cfg);
+	pllout_div = (pllout_div & pllout_div_mask) >> pllout_div_shift;
+
+	pll_refclk_sel = pll_cfg0 & SSCG_PLL_REFCLK_SEL_MASK;
+
+	if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_OSC_25M)
+		pll_refclk = 25000000u;
+	else if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_OSC_27M)
+		pll_refclk = 27000000u;
+	else if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_HDMI_PHY_27M)
+		pll_refclk = 27000000u;
+	else
+		pll_refclk = 0;
+
+	/* We assume bypass1/2 are the same value */
+	if ((pll_cfg0 & SSCG_PLL_BYPASS1_MASK) ||
+	    (pll_cfg0 & SSCG_PLL_BYPASS2_MASK))
+		return pll_refclk;
+
+	divr1 = (pll_cfg2 & SSCG_PLL_REF_DIVR1_MASK) >>
+		SSCG_PLL_REF_DIVR1_SHIFT;
+	divr2 = (pll_cfg2 & SSCG_PLL_REF_DIVR2_MASK) >>
+		SSCG_PLL_REF_DIVR2_SHIFT;
+	divf1 = (pll_cfg2 & SSCG_PLL_FEEDBACK_DIV_F1_MASK) >>
+		SSCG_PLL_FEEDBACK_DIV_F1_SHIFT;
+	divf2 = (pll_cfg2 & SSCG_PLL_FEEDBACK_DIV_F2_MASK) >>
+		SSCG_PLL_FEEDBACK_DIV_F2_SHIFT;
+	divq = (pll_cfg2 & SSCG_PLL_OUTPUT_DIV_VAL_MASK) >>
+		SSCG_PLL_OUTPUT_DIV_VAL_SHIFT;
+	sse = pll_cfg1 & SSCG_PLL_SSE_MASK;
+
+	if (sse)
+		sse = 8;
+	else
+		sse = 2;
+
+	pllout = pll_refclk / (divr1 + 1) * sse * (divf1 + 1) /
+		(divr2 + 1) * (divf2 + 1) / (divq + 1);
+
+	return pllout / (pllout_div + 1) / div;
+}
+
+static u32 get_root_src_clk(enum clk_root_src root_src)
+{
+	switch (root_src) {
+	case OSC_25M_CLK:
+		return 25000000;
+	case OSC_27M_CLK:
+		return 25000000;
+	case OSC_32K_CLK:
+		return 32000;
+	case ARM_PLL_CLK:
+		return decode_frac_pll(root_src);
+	case SYSTEM_PLL1_800M_CLK:
+	case SYSTEM_PLL1_400M_CLK:
+	case SYSTEM_PLL1_266M_CLK:
+	case SYSTEM_PLL1_200M_CLK:
+	case SYSTEM_PLL1_160M_CLK:
+	case SYSTEM_PLL1_133M_CLK:
+	case SYSTEM_PLL1_100M_CLK:
+	case SYSTEM_PLL1_80M_CLK:
+	case SYSTEM_PLL1_40M_CLK:
+	case SYSTEM_PLL2_1000M_CLK:
+	case SYSTEM_PLL2_500M_CLK:
+	case SYSTEM_PLL2_333M_CLK:
+	case SYSTEM_PLL2_250M_CLK:
+	case SYSTEM_PLL2_200M_CLK:
+	case SYSTEM_PLL2_166M_CLK:
+	case SYSTEM_PLL2_125M_CLK:
+	case SYSTEM_PLL2_100M_CLK:
+	case SYSTEM_PLL2_50M_CLK:
+	case SYSTEM_PLL3_CLK:
+		return decode_sscg_pll(root_src);
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
+static u32 get_root_clk(enum clk_root_index clock_id)
+{
+	enum clk_root_src root_src;
+	u32 post_podf, pre_podf, root_src_clk;
+
+	if (clock_root_enabled(clock_id) <= 0)
+		return 0;
+
+	if (clock_get_prediv(clock_id, &pre_podf) < 0)
+		return 0;
+
+	if (clock_get_postdiv(clock_id, &post_podf) < 0)
+		return 0;
+
+	if (clock_get_src(clock_id, &root_src) < 0)
+		return 0;
+
+	root_src_clk = get_root_src_clk(root_src);
+
+	return root_src_clk / (post_podf + 1) / (pre_podf + 1);
+}
+
+#ifdef CONFIG_MXC_OCOTP
+void enable_ocotp_clk(unsigned char enable)
+{
+	clock_enable(CCGR_OCOTP, !!enable);
+}
+#endif
+
+int enable_i2c_clk(unsigned char enable, unsigned int i2c_num)
+{
+	/* 0 - 3 is valid i2c num */
+	if (i2c_num > 3)
+		return -EINVAL;
+
+	clock_enable(CCGR_I2C1 + i2c_num, !!enable);
+
+	return 0;
+}
+
+unsigned int mxc_get_clock(enum clk_root_index clk)
+{
+	u32 val;
+
+	if (clk >= CLK_ROOT_MAX)
+		return 0;
+
+	if (clk == MXC_ARM_CLK)
+		return get_root_clk(ARM_A53_CLK_ROOT);
+
+	if (clk == MXC_IPG_CLK) {
+		clock_get_target_val(IPG_CLK_ROOT, &val);
+		val = val & 0x3;
+		return get_root_clk(AHB_CLK_ROOT) / (val + 1);
+	}
+
+	return get_root_clk(clk);
+}
+
+u32 imx_get_uartclk(void)
+{
+	return mxc_get_clock(UART1_CLK_ROOT);
+}
+
+void mxs_set_lcdclk(u32 base_addr, u32 freq)
+{
+	/*
+	 * LCDIF_PIXEL_CLK: select 800MHz root clock,
+	 * select pre divider 8, output is 100 MHz
+	 */
+	clock_set_target_val(LCDIF_PIXEL_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(4) |
+			     CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV8));
+}
+
+void init_wdog_clk(void)
+{
+	clock_enable(CCGR_WDOG1, 0);
+	clock_enable(CCGR_WDOG2, 0);
+	clock_enable(CCGR_WDOG3, 0);
+	clock_set_target_val(WDOG_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(0));
+	clock_set_target_val(WDOG_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(0));
+	clock_set_target_val(WDOG_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(0));
+	clock_enable(CCGR_WDOG1, 1);
+	clock_enable(CCGR_WDOG2, 1);
+	clock_enable(CCGR_WDOG3, 1);
+}
+
+void init_usb_clk(void)
+{
+	if (!is_usb_boot()) {
+		clock_enable(CCGR_USB_CTRL1, 0);
+		clock_enable(CCGR_USB_CTRL2, 0);
+		clock_enable(CCGR_USB_PHY1, 0);
+		clock_enable(CCGR_USB_PHY2, 0);
+		/* 500MHz */
+		clock_set_target_val(USB_BUS_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(1));
+		/* 100MHz */
+		clock_set_target_val(USB_CORE_REF_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(1));
+		/* 100MHz */
+		clock_set_target_val(USB_PHY_REF_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(1));
+		clock_enable(CCGR_USB_CTRL1, 1);
+		clock_enable(CCGR_USB_CTRL2, 1);
+		clock_enable(CCGR_USB_PHY1, 1);
+		clock_enable(CCGR_USB_PHY2, 1);
+	}
+}
+
+void init_uart_clk(u32 index)
+{
+	/* Set uart clock root 25M OSC */
+	switch (index) {
+	case 0:
+		clock_enable(CCGR_UART1, 0);
+		clock_set_target_val(UART1_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(0));
+		clock_enable(CCGR_UART1, 1);
+		return;
+	case 1:
+		clock_enable(CCGR_UART2, 0);
+		clock_set_target_val(UART2_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(0));
+		clock_enable(CCGR_UART2, 1);
+		return;
+	case 2:
+		clock_enable(CCGR_UART3, 0);
+		clock_set_target_val(UART3_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(0));
+		clock_enable(CCGR_UART3, 1);
+		return;
+	case 3:
+		clock_enable(CCGR_UART4, 0);
+		clock_set_target_val(UART4_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(0));
+		clock_enable(CCGR_UART4, 1);
+		return;
+	default:
+		printf("Invalid uart index\n");
+		return;
+	}
+}
+
+void init_clk_usdhc(u32 index)
+{
+	/*
+	 * set usdhc clock root
+	 * sys pll1 400M
+	 */
+	switch (index) {
+	case 0:
+		clock_enable(CCGR_USDHC1, 0);
+		clock_set_target_val(USDHC1_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(1) |
+				     CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+		clock_enable(CCGR_USDHC1, 1);
+		return;
+	case 1:
+		clock_enable(CCGR_USDHC2, 0);
+		clock_set_target_val(USDHC2_CLK_ROOT, CLK_ROOT_ON |
+				     CLK_ROOT_SOURCE_SEL(1) |
+				     CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+		clock_enable(CCGR_USDHC2, 1);
+		return;
+	default:
+		printf("Invalid usdhc index\n");
+		return;
+	}
+}
+
+int set_clk_qspi(void)
+{
+	/*
+	 * set qspi root
+	 * sys pll1 100M
+	 */
+	clock_enable(CCGR_QSPI, 0);
+	clock_set_target_val(QSPI_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(7));
+	clock_enable(CCGR_QSPI, 1);
+
+	return 0;
+}
+
+#ifdef CONFIG_FEC_MXC
+int set_clk_enet(enum enet_freq type)
+{
+	u32 target;
+	u32 enet1_ref;
+
+	switch (type) {
+	case ENET_125MHZ:
+		enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK;
+		break;
+	case ENET_50MHZ:
+		enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK;
+		break;
+	case ENET_25MHZ:
+		enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* disable the clock first */
+	clock_enable(CCGR_ENET1, 0);
+	clock_enable(CCGR_SIM_ENET, 0);
+
+	/* set enet axi clock 266Mhz */
+	target = CLK_ROOT_ON | ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M |
+		 CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+		 CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+	clock_set_target_val(ENET_AXI_CLK_ROOT, target);
+
+	target = CLK_ROOT_ON | enet1_ref |
+		 CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+		 CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+	clock_set_target_val(ENET_REF_CLK_ROOT, target);
+
+	target = CLK_ROOT_ON |
+		ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK |
+		CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+		CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4);
+	clock_set_target_val(ENET_TIMER_CLK_ROOT, target);
+
+	/* enable clock */
+	clock_enable(CCGR_SIM_ENET, 1);
+	clock_enable(CCGR_ENET1, 1);
+
+	return 0;
+}
+#endif
+
+u32 imx_get_fecclk(void)
+{
+	return get_root_clk(ENET_AXI_CLK_ROOT);
+}
+
+#ifdef CONFIG_SPL_BUILD
+void dram_pll_init(void)
+{
+	struct src *src = (struct src *)SRC_BASE_ADDR;
+	void __iomem *pll_control_reg = &ana_pll->dram_pll_cfg0;
+	u32 pwdn_mask = 0, pll_clke = 0, bypass1 = 0, bypass2 = 0;
+	u32 val;
+	int ret;
+
+	setbits_le32(GPC_BASE_ADDR + 0xEC, BIT(7));
+	setbits_le32(GPC_BASE_ADDR + 0xF8, BIT(5));
+
+	pwdn_mask = SSCG_PLL_PD_MASK;
+	pll_clke = SSCG_PLL_DRAM_PLL_CLKE_MASK;
+	bypass1 = SSCG_PLL_BYPASS1_MASK;
+	bypass2 = SSCG_PLL_BYPASS2_MASK;
+
+	/* Enable DDR1 and DDR2 domain */
+	writel(SRC_DDR1_ENABLE_MASK, &src->ddr1_rcr);
+	writel(SRC_DDR1_ENABLE_MASK, &src->ddr2_rcr);
+
+	/* Clear power down bit */
+	clrbits_le32(pll_control_reg, pwdn_mask);
+	/* Eanble ARM_PLL/SYS_PLL  */
+	setbits_le32(pll_control_reg, pll_clke);
+
+	/* Clear bypass */
+	clrbits_le32(pll_control_reg, bypass1);
+	__udelay(100);
+	clrbits_le32(pll_control_reg, bypass2);
+	/* Wait lock */
+	ret = readl_poll_timeout(pll_control_reg, val,
+				 val & SSCG_PLL_LOCK_MASK, 1);
+	if (ret)
+		printf("%s timeout\n", __func__);
+}
+
+int frac_pll_init(u32 pll, enum frac_pll_out_val val)
+{
+	void __iomem *pll_cfg0, __iomem *pll_cfg1;
+	u32 val_cfg0, val_cfg1;
+	int ret;
+
+	switch (pll) {
+	case ANATOP_ARM_PLL:
+		pll_cfg0 = &ana_pll->arm_pll_cfg0;
+		pll_cfg1 = &ana_pll->arm_pll_cfg1;
+
+		if (val == FRAC_PLL_OUT_1000M)
+			val_cfg1 = FRAC_PLL_INT_DIV_CTL_VAL(49);
+		else
+			val_cfg1 = FRAC_PLL_INT_DIV_CTL_VAL(79);
+		val_cfg0 = FRAC_PLL_CLKE_MASK | FRAC_PLL_REFCLK_SEL_OSC_25M |
+			FRAC_PLL_LOCK_SEL_MASK | FRAC_PLL_NEWDIV_VAL_MASK |
+			FRAC_PLL_REFCLK_DIV_VAL(4) |
+			FRAC_PLL_OUTPUT_DIV_VAL(0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* bypass the clock */
+	setbits_le32(pll_cfg0, FRAC_PLL_BYPASS_MASK);
+	/* Set the value */
+	writel(val_cfg1, pll_cfg1);
+	writel(val_cfg0 | FRAC_PLL_BYPASS_MASK, pll_cfg0);
+	val_cfg0 = readl(pll_cfg0);
+	/* unbypass the clock */
+	clrbits_le32(pll_cfg0, FRAC_PLL_BYPASS_MASK);
+	ret = readl_poll_timeout(pll_cfg0, val_cfg0,
+				 val_cfg0 & FRAC_PLL_LOCK_MASK, 1);
+	if (ret)
+		printf("%s timeout\n", __func__);
+	clrbits_le32(pll_cfg0, FRAC_PLL_NEWDIV_VAL_MASK);
+
+	return 0;
+}
+
+int sscg_pll_init(u32 pll)
+{
+	void __iomem *pll_cfg0, __iomem *pll_cfg1, __iomem *pll_cfg2;
+	u32 val_cfg0, val_cfg1, val_cfg2, val;
+	u32 bypass1_mask = 0x20, bypass2_mask = 0x10;
+	int ret;
+
+	switch (pll) {
+	case ANATOP_SYSTEM_PLL1:
+		pll_cfg0 = &ana_pll->sys_pll1_cfg0;
+		pll_cfg1 = &ana_pll->sys_pll1_cfg1;
+		pll_cfg2 = &ana_pll->sys_pll1_cfg2;
+		/* 800MHz */
+		val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
+			SSCG_PLL_FEEDBACK_DIV_F2_VAL(3);
+		val_cfg1 = 0;
+		val_cfg0 = SSCG_PLL_CLKE_MASK | SSCG_PLL_DIV2_CLKE_MASK |
+			SSCG_PLL_DIV3_CLKE_MASK | SSCG_PLL_DIV4_CLKE_MASK |
+			SSCG_PLL_DIV5_CLKE_MASK | SSCG_PLL_DIV6_CLKE_MASK |
+			SSCG_PLL_DIV8_CLKE_MASK | SSCG_PLL_DIV10_CLKE_MASK |
+			SSCG_PLL_DIV20_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
+			SSCG_PLL_REFCLK_SEL_OSC_25M;
+		break;
+	case ANATOP_SYSTEM_PLL2:
+		pll_cfg0 = &ana_pll->sys_pll2_cfg0;
+		pll_cfg1 = &ana_pll->sys_pll2_cfg1;
+		pll_cfg2 = &ana_pll->sys_pll2_cfg2;
+		/* 1000MHz */
+		val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
+			SSCG_PLL_FEEDBACK_DIV_F2_VAL(4);
+		val_cfg1 = 0;
+		val_cfg0 = SSCG_PLL_CLKE_MASK | SSCG_PLL_DIV2_CLKE_MASK |
+			SSCG_PLL_DIV3_CLKE_MASK | SSCG_PLL_DIV4_CLKE_MASK |
+			SSCG_PLL_DIV5_CLKE_MASK | SSCG_PLL_DIV6_CLKE_MASK |
+			SSCG_PLL_DIV8_CLKE_MASK | SSCG_PLL_DIV10_CLKE_MASK |
+			SSCG_PLL_DIV20_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
+			SSCG_PLL_REFCLK_SEL_OSC_25M;
+		break;
+	case ANATOP_SYSTEM_PLL3:
+		pll_cfg0 = &ana_pll->sys_pll3_cfg0;
+		pll_cfg1 = &ana_pll->sys_pll3_cfg1;
+		pll_cfg2 = &ana_pll->sys_pll3_cfg2;
+		/* 800MHz */
+		val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
+			SSCG_PLL_FEEDBACK_DIV_F2_VAL(3);
+		val_cfg1 = 0;
+		val_cfg0 = SSCG_PLL_PLL3_CLKE_MASK |  SSCG_PLL_LOCK_SEL_MASK |
+			SSCG_PLL_REFCLK_SEL_OSC_25M;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/*bypass*/
+	setbits_le32(pll_cfg0, bypass1_mask | bypass2_mask);
+	/* set value */
+	writel(val_cfg2, pll_cfg2);
+	writel(val_cfg1, pll_cfg1);
+	/*unbypass1 and wait 70us */
+	writel(val_cfg0 | bypass2_mask, pll_cfg1);
+
+	__udelay(70);
+
+	/* unbypass2 and wait lock */
+	writel(val_cfg0, pll_cfg1);
+	ret = readl_poll_timeout(pll_cfg0, val, val & SSCG_PLL_LOCK_MASK, 1);
+	if (ret)
+		printf("%s timeout\n", __func__);
+
+	return ret;
+}
+
+int clock_init(void)
+{
+	u32 grade;
+
+	clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(0));
+
+	/*
+	 * 8MQ only supports two grades: consumer and industrial.
+	 * We set ARM clock to 1Ghz for consumer, 800Mhz for industrial
+	 */
+	grade = get_cpu_temp_grade(NULL, NULL);
+	if (!grade) {
+		frac_pll_init(ANATOP_ARM_PLL, FRAC_PLL_OUT_1000M);
+		clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(1) |
+			     CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1));
+	} else {
+		frac_pll_init(ANATOP_ARM_PLL, FRAC_PLL_OUT_1600M);
+		clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(1) |
+			     CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+	}
+	/*
+	 * According to ANAMIX SPEC
+	 * sys pll1 fixed at 800MHz
+	 * sys pll2 fixed at 1GHz
+	 * Here we only enable the outputs.
+	 */
+	setbits_le32(&ana_pll->sys_pll1_cfg0, SSCG_PLL_CLKE_MASK |
+		     SSCG_PLL_DIV2_CLKE_MASK | SSCG_PLL_DIV3_CLKE_MASK |
+		     SSCG_PLL_DIV4_CLKE_MASK | SSCG_PLL_DIV5_CLKE_MASK |
+		     SSCG_PLL_DIV6_CLKE_MASK | SSCG_PLL_DIV8_CLKE_MASK |
+		     SSCG_PLL_DIV10_CLKE_MASK | SSCG_PLL_DIV20_CLKE_MASK);
+
+	setbits_le32(&ana_pll->sys_pll2_cfg0, SSCG_PLL_CLKE_MASK |
+		     SSCG_PLL_DIV2_CLKE_MASK | SSCG_PLL_DIV3_CLKE_MASK |
+		     SSCG_PLL_DIV4_CLKE_MASK | SSCG_PLL_DIV5_CLKE_MASK |
+		     SSCG_PLL_DIV6_CLKE_MASK | SSCG_PLL_DIV8_CLKE_MASK |
+		     SSCG_PLL_DIV10_CLKE_MASK | SSCG_PLL_DIV20_CLKE_MASK);
+
+	clock_set_target_val(NAND_USDHC_BUS_CLK_ROOT, CLK_ROOT_ON |
+			     CLK_ROOT_SOURCE_SEL(1));
+
+	init_wdog_clk();
+	clock_enable(CCGR_TSENSOR, 1);
+
+	return 0;
+}
+#endif
+
+/*
+ * Dump some clockes.
+ */
+#ifndef CONFIG_SPL_BUILD
+int do_mx8m_showclocks(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char * const argv[])
+{
+	u32 freq;
+
+	freq = decode_frac_pll(ARM_PLL_CLK);
+	printf("ARM_PLL    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_800M_CLK);
+	printf("SYS_PLL1_800    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_400M_CLK);
+	printf("SYS_PLL1_400    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_266M_CLK);
+	printf("SYS_PLL1_266    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_200M_CLK);
+	printf("SYS_PLL1_200    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_160M_CLK);
+	printf("SYS_PLL1_160    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_133M_CLK);
+	printf("SYS_PLL1_133    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_100M_CLK);
+	printf("SYS_PLL1_100    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_80M_CLK);
+	printf("SYS_PLL1_80    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL1_40M_CLK);
+	printf("SYS_PLL1_40    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_1000M_CLK);
+	printf("SYS_PLL2_1000    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_500M_CLK);
+	printf("SYS_PLL2_500    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_333M_CLK);
+	printf("SYS_PLL2_333    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_250M_CLK);
+	printf("SYS_PLL2_250    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_200M_CLK);
+	printf("SYS_PLL2_200    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_166M_CLK);
+	printf("SYS_PLL2_166    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_125M_CLK);
+	printf("SYS_PLL2_125    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_100M_CLK);
+	printf("SYS_PLL2_100    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL2_50M_CLK);
+	printf("SYS_PLL2_50    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(SYSTEM_PLL3_CLK);
+	printf("SYS_PLL3       %8d MHz\n", freq / 1000000);
+	freq = mxc_get_clock(UART1_CLK_ROOT);
+	printf("UART1          %8d MHz\n", freq / 1000000);
+	freq = mxc_get_clock(USDHC1_CLK_ROOT);
+	printf("USDHC1         %8d MHz\n", freq / 1000000);
+	freq = mxc_get_clock(QSPI_CLK_ROOT);
+	printf("QSPI           %8d MHz\n", freq / 1000000);
+	return 0;
+}
+
+U_BOOT_CMD(
+	clocks,	CONFIG_SYS_MAXARGS, 1, do_mx8m_showclocks,
+	"display clocks",
+	""
+);
+#endif
diff --git a/arch/arm/mach-imx/mx8m/clock_slice.c b/arch/arm/mach-imx/mx8m/clock_slice.c
new file mode 100644
index 0000000..e734498
--- /dev/null
+++ b/arch/arm/mach-imx/mx8m/clock_slice.c
@@ -0,0 +1,742 @@
+/*
+ * Copyright 2017 NXP
+ *
+ * Peng Fan <peng.fan@nxp.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/io.h>
+#include <errno.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct ccm_reg *ccm_reg = (struct ccm_reg *)CCM_BASE_ADDR;
+
+static struct clk_root_map root_array[] = {
+	{ARM_A53_CLK_ROOT, CORE_CLOCK_SLICE, 0,
+	 {OSC_25M_CLK, ARM_PLL_CLK, SYSTEM_PLL2_500M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL1_400M_CLK, AUDIO_PLL1_CLK, SYSTEM_PLL3_CLK}
+	},
+	{ARM_M4_CLK_ROOT, CORE_CLOCK_SLICE, 1,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL2_250M_CLK,
+	  SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, SYSTEM_PLL3_CLK}
+	},
+	{VPU_A53_CLK_ROOT, CORE_CLOCK_SLICE, 2,
+	 {OSC_25M_CLK, ARM_PLL_CLK, SYSTEM_PLL2_500M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL1_400M_CLK, AUDIO_PLL1_CLK, VPU_PLL_CLK}
+	},
+	{GPU_CORE_CLK_ROOT, CORE_CLOCK_SLICE, 3,
+	 {OSC_25M_CLK, GPU_PLL_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_1000M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK}
+	},
+	{GPU_SHADER_CLK_ROOT, CORE_CLOCK_SLICE, 4,
+	 {OSC_25M_CLK, GPU_PLL_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_1000M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK}
+	},
+	{MAIN_AXI_CLK_ROOT, BUS_CLOCK_SLICE, 0,
+	 {OSC_25M_CLK, SYSTEM_PLL2_333M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_250M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, SYSTEM_PLL1_100M_CLK}
+	},
+	{ENET_AXI_CLK_ROOT, BUS_CLOCK_SLICE, 1,
+	 {OSC_25M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_250M_CLK, SYSTEM_PLL2_200M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, SYSTEM_PLL3_CLK}
+	},
+	{NAND_USDHC_BUS_CLK_ROOT, BUS_CLOCK_SLICE, 2,
+	 {OSC_25M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_133M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL1_CLK}
+	},
+	{VPU_BUS_CLK_ROOT, BUS_CLOCK_SLICE, 3,
+	 {OSC_25M_CLK, SYSTEM_PLL1_800M_CLK, VPU_PLL_CLK,
+	  AUDIO_PLL2_CLK, SYSTEM_PLL3_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_100M_CLK}
+	},
+	{DISPLAY_AXI_CLK_ROOT, BUS_CLOCK_SLICE, 4,
+	 {OSC_25M_CLK, SYSTEM_PLL2_125M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL1_400M_CLK, AUDIO_PLL2_CLK,
+	  EXT_CLK_1, EXT_CLK_4}
+	},
+	{DISPLAY_APB_CLK_ROOT, BUS_CLOCK_SLICE, 5,
+	 {OSC_25M_CLK, SYSTEM_PLL2_125M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL1_400M_CLK, AUDIO_PLL2_CLK,
+	  EXT_CLK_1, EXT_CLK_3}
+	},
+	{DISPLAY_RTRM_CLK_ROOT, BUS_CLOCK_SLICE, 6,
+	 {OSC_25M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL1_400M_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK,
+	  EXT_CLK_2, EXT_CLK_3}
+	},
+	{USB_BUS_CLK_ROOT, BUS_CLOCK_SLICE, 7,
+	 {OSC_25M_CLK, SYSTEM_PLL2_500M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL2_200M_CLK,
+	  EXT_CLK_2, EXT_CLK_4, AUDIO_PLL2_CLK}
+	},
+	{GPU_AXI_CLK_ROOT, BUS_CLOCK_SLICE, 8,
+	 {OSC_25M_CLK, SYSTEM_PLL1_800M_CLK, GPU_PLL_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_1000M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK}
+	},
+	{GPU_AHB_CLK_ROOT, BUS_CLOCK_SLICE, 9,
+	 {OSC_25M_CLK, SYSTEM_PLL1_800M_CLK, GPU_PLL_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_1000M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK}
+	},
+	{NOC_CLK_ROOT, BUS_CLOCK_SLICE, 10,
+	 {OSC_25M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL3_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL2_500M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK}
+	},
+	{NOC_APB_CLK_ROOT, BUS_CLOCK_SLICE, 11,
+	 {OSC_25M_CLK, SYSTEM_PLL1_400M_CLK, SYSTEM_PLL3_CLK,
+	  SYSTEM_PLL2_333M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL1_800M_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK}
+	},
+	{AHB_CLK_ROOT, AHB_CLOCK_SLICE, 0,
+	 {OSC_25M_CLK, SYSTEM_PLL1_133M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL1_400M_CLK, SYSTEM_PLL2_125M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK}
+	},
+	{IPG_CLK_ROOT, IPG_CLOCK_SLICE, 0,
+	 {}
+	},
+	{AUDIO_AHB_CLK_ROOT, AHB_CLOCK_SLICE, 1,
+	 {OSC_25M_CLK, SYSTEM_PLL2_500M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL2_166M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK}
+	},
+	{MIPI_DSI_ESC_RX_CLK_ROOT, AHB_CLOCK_SLICE, 2,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, EXT_CLK_3, AUDIO_PLL1_CLK },
+	},
+	{DRAM_ALT_CLK_ROOT, IP_CLOCK_SLICE, 0,
+	 {OSC_25M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL1_100M_CLK,
+	  SYSTEM_PLL2_500M_CLK, SYSTEM_PLL2_250M_CLK,
+	  SYSTEM_PLL1_400M_CLK, AUDIO_PLL1_CLK, SYSTEM_PLL1_266M_CLK}
+	},
+	{DRAM_APB_CLK_ROOT, IP_CLOCK_SLICE, 1,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL2_CLK}
+	},
+	{VPU_G1_CLK_ROOT, IP_CLOCK_SLICE, 2,
+	 {OSC_25M_CLK, VPU_PLL_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL1_100M_CLK,
+	  SYSTEM_PLL2_125M_CLK, SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK}
+	},
+	{VPU_G2_CLK_ROOT, IP_CLOCK_SLICE, 3,
+	 {OSC_25M_CLK, VPU_PLL_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL1_100M_CLK,
+	  SYSTEM_PLL2_125M_CLK, SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK}
+	},
+	{DISPLAY_DTRC_CLK_ROOT, IP_CLOCK_SLICE, 4,
+	 {OSC_25M_CLK, VPU_PLL_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL1_160M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK, AUDIO_PLL2_CLK}
+	},
+	{DISPLAY_DC8000_CLK_ROOT, IP_CLOCK_SLICE, 5,
+	 {OSC_25M_CLK, VPU_PLL_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL1_160M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK, AUDIO_PLL2_CLK}
+	},
+	{PCIE1_CTRL_CLK_ROOT, IP_CLOCK_SLICE, 6,
+	 {OSC_25M_CLK, SYSTEM_PLL2_250M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_500M_CLK, SYSTEM_PLL2_333M_CLK, SYSTEM_PLL3_CLK}
+	},
+	{PCIE1_PHY_CLK_ROOT, IP_CLOCK_SLICE, 7,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL2_500M_CLK,
+	  EXT_CLK_1, EXT_CLK_2, EXT_CLK_3, EXT_CLK_4,
+	  SYSTEM_PLL1_400M_CLK}
+	},
+	{PCIE1_AUX_CLK_ROOT, IP_CLOCK_SLICE, 8,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL2_50M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_80M_CLK,
+	  SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_200M_CLK}
+	},
+	{DC_PIXEL_CLK_ROOT, IP_CLOCK_SLICE, 9,
+	 {OSC_25M_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK,
+	  AUDIO_PLL1_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL3_CLK, EXT_CLK_4}
+	},
+	{LCDIF_PIXEL_CLK_ROOT, IP_CLOCK_SLICE, 10,
+	 {OSC_25M_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK,
+	  AUDIO_PLL1_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL3_CLK, EXT_CLK_4}
+	},
+	{SAI1_CLK_ROOT, IP_CLOCK_SLICE, 11,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_1, EXT_CLK_2}
+	},
+	{SAI2_CLK_ROOT, IP_CLOCK_SLICE, 12,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_2, EXT_CLK_3}
+	},
+	{SAI3_CLK_ROOT, IP_CLOCK_SLICE, 13,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_3, EXT_CLK_4}
+	},
+	{SAI4_CLK_ROOT, IP_CLOCK_SLICE, 14,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_1, EXT_CLK_2}
+	},
+	{SAI5_CLK_ROOT, IP_CLOCK_SLICE, 15,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_2, EXT_CLK_3}
+	},
+	{SAI6_CLK_ROOT, IP_CLOCK_SLICE, 16,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_3, EXT_CLK_4}
+	},
+	{SPDIF1_CLK_ROOT, IP_CLOCK_SLICE, 17,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_2, EXT_CLK_3}
+	},
+	{SPDIF2_CLK_ROOT, IP_CLOCK_SLICE, 18,
+	 {OSC_25M_CLK, AUDIO_PLL1_CLK, AUDIO_PLL2_CLK,
+	  VIDEO_PLL_CLK, SYSTEM_PLL1_133M_CLK,
+	  OSC_27M_CLK, EXT_CLK_3, EXT_CLK_4}
+	},
+	{ENET_REF_CLK_ROOT, IP_CLOCK_SLICE, 19,
+	 {OSC_25M_CLK, SYSTEM_PLL2_125M_CLK, SYSTEM_PLL2_50M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_160M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, EXT_CLK_4}
+	},
+	{ENET_TIMER_CLK_ROOT, IP_CLOCK_SLICE, 20,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, AUDIO_PLL1_CLK,
+	  EXT_CLK_1, EXT_CLK_2, EXT_CLK_3, EXT_CLK_4,
+	  VIDEO_PLL_CLK}
+	},
+	{ENET_PHY_REF_CLK_ROOT, IP_CLOCK_SLICE, 21,
+	 {OSC_25M_CLK, SYSTEM_PLL2_50M_CLK, SYSTEM_PLL2_125M_CLK,
+	  SYSTEM_PLL2_200M_CLK, SYSTEM_PLL2_500M_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK}
+	},
+	{NAND_CLK_ROOT, IP_CLOCK_SLICE, 22,
+	 {OSC_25M_CLK, SYSTEM_PLL2_500M_CLK, AUDIO_PLL1_CLK,
+	  SYSTEM_PLL1_400M_CLK, AUDIO_PLL2_CLK, SYSTEM_PLL3_CLK,
+	  SYSTEM_PLL2_250M_CLK, VIDEO_PLL_CLK}
+	},
+	{QSPI_CLK_ROOT, IP_CLOCK_SLICE, 23,
+	 {OSC_25M_CLK, SYSTEM_PLL1_400M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_500M_CLK, AUDIO_PLL2_CLK,
+	  SYSTEM_PLL1_266M_CLK, SYSTEM_PLL3_CLK, SYSTEM_PLL1_100M_CLK}
+	},
+	{USDHC1_CLK_ROOT, IP_CLOCK_SLICE, 24,
+	 {OSC_25M_CLK, SYSTEM_PLL1_400M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_500M_CLK, AUDIO_PLL2_CLK,
+	  SYSTEM_PLL1_266M_CLK, SYSTEM_PLL3_CLK, SYSTEM_PLL1_100M_CLK}
+	},
+	{USDHC2_CLK_ROOT, IP_CLOCK_SLICE, 25,
+	 {OSC_25M_CLK, SYSTEM_PLL1_400M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_500M_CLK, AUDIO_PLL2_CLK,
+	  SYSTEM_PLL1_266M_CLK, SYSTEM_PLL3_CLK, SYSTEM_PLL1_100M_CLK}
+	},
+	{I2C1_CLK_ROOT, IP_CLOCK_SLICE, 26,
+	 {OSC_25M_CLK, SYSTEM_PLL1_160M_CLK, SYSTEM_PLL2_50M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK,
+	  AUDIO_PLL2_CLK, SYSTEM_PLL1_133M_CLK}
+	},
+	{I2C2_CLK_ROOT, IP_CLOCK_SLICE, 27,
+	 {OSC_25M_CLK, SYSTEM_PLL1_160M_CLK, SYSTEM_PLL2_50M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK,
+	  AUDIO_PLL2_CLK, SYSTEM_PLL1_133M_CLK}
+	},
+	{I2C3_CLK_ROOT, IP_CLOCK_SLICE, 28,
+	 {OSC_25M_CLK, SYSTEM_PLL1_160M_CLK, SYSTEM_PLL2_50M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK,
+	  AUDIO_PLL2_CLK, SYSTEM_PLL1_133M_CLK}
+	},
+	{I2C4_CLK_ROOT, IP_CLOCK_SLICE, 29,
+	 {OSC_25M_CLK, SYSTEM_PLL1_160M_CLK, SYSTEM_PLL2_50M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK,
+	  AUDIO_PLL2_CLK, SYSTEM_PLL1_133M_CLK}
+	},
+	{UART1_CLK_ROOT, IP_CLOCK_SLICE, 30,
+	 {OSC_25M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK,
+	  EXT_CLK_2, EXT_CLK_4, AUDIO_PLL2_CLK}
+	},
+	{UART2_CLK_ROOT, IP_CLOCK_SLICE, 31,
+	 {OSC_25M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK,
+	  EXT_CLK_2, EXT_CLK_3, AUDIO_PLL2_CLK}
+	},
+	{UART3_CLK_ROOT, IP_CLOCK_SLICE, 32,
+	 {OSC_25M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK,
+	  EXT_CLK_2, EXT_CLK_4, AUDIO_PLL2_CLK}
+	},
+	{UART4_CLK_ROOT, IP_CLOCK_SLICE, 33,
+	 {OSC_25M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK,
+	  EXT_CLK_2, EXT_CLK_3, AUDIO_PLL2_CLK}
+	},
+	{USB_CORE_REF_CLK_ROOT, IP_CLOCK_SLICE, 34,
+	 {OSC_25M_CLK, SYSTEM_PLL1_100M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL2_200M_CLK,
+	  EXT_CLK_2, EXT_CLK_3, AUDIO_PLL2_CLK}
+	},
+	{USB_PHY_REF_CLK_ROOT, IP_CLOCK_SLICE, 35,
+	 {OSC_25M_CLK, SYSTEM_PLL1_100M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL2_200M_CLK,
+	  EXT_CLK_2, EXT_CLK_3, AUDIO_PLL2_CLK}
+	},
+	{GIC_CLK_ROOT, IP_CLOCK_SLICE, 36,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_800M_CLK,
+	  EXT_CLK_2, EXT_CLK_4, AUDIO_PLL2_CLK}
+	},
+	{ECSPI1_CLK_ROOT, IP_CLOCK_SLICE, 37,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL2_CLK}
+	},
+	{ECSPI2_CLK_ROOT, IP_CLOCK_SLICE, 38,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL2_CLK}
+	},
+	{PWM1_CLK_ROOT, IP_CLOCK_SLICE, 39,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_160M_CLK,
+	  SYSTEM_PLL1_40M_CLK, SYSTEM_PLL3_CLK, EXT_CLK_1,
+	  SYSTEM_PLL1_80M_CLK, VIDEO_PLL_CLK}
+	},
+	{PWM2_CLK_ROOT, IP_CLOCK_SLICE, 40,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_160M_CLK,
+	  SYSTEM_PLL1_40M_CLK, SYSTEM_PLL3_CLK, EXT_CLK_1,
+	  SYSTEM_PLL1_80M_CLK, VIDEO_PLL_CLK}
+	},
+	{PWM3_CLK_ROOT, IP_CLOCK_SLICE, 41,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_160M_CLK,
+	  SYSTEM_PLL1_40M_CLK, SYSTEM_PLL3_CLK, EXT_CLK_1,
+	  SYSTEM_PLL1_80M_CLK, VIDEO_PLL_CLK}
+	},
+	{PWM4_CLK_ROOT, IP_CLOCK_SLICE, 42,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_160M_CLK,
+	  SYSTEM_PLL1_40M_CLK, SYSTEM_PLL3_CLK, EXT_CLK_1,
+	  SYSTEM_PLL1_80M_CLK, VIDEO_PLL_CLK}
+	},
+	{GPT1_CLK_ROOT, IP_CLOCK_SLICE, 43,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_400M_CLK,
+	  SYSTEM_PLL1_40M_CLK, VIDEO_PLL_CLK,
+	  SYSTEM_PLL1_80M_CLK, AUDIO_PLL1_CLK, EXT_CLK_1}
+	},
+	{GPT2_CLK_ROOT, IP_CLOCK_SLICE, 44,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_400M_CLK,
+	  SYSTEM_PLL1_40M_CLK, VIDEO_PLL_CLK,
+	  SYSTEM_PLL1_80M_CLK, AUDIO_PLL1_CLK, EXT_CLK_2}
+	},
+	{GPT3_CLK_ROOT, IP_CLOCK_SLICE, 45,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_400M_CLK,
+	  SYSTEM_PLL1_40M_CLK, VIDEO_PLL_CLK,
+	  SYSTEM_PLL1_80M_CLK, AUDIO_PLL1_CLK, EXT_CLK_3}
+	},
+	{GPT4_CLK_ROOT, IP_CLOCK_SLICE, 46,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_400M_CLK,
+	  SYSTEM_PLL1_40M_CLK, VIDEO_PLL_CLK,
+	  SYSTEM_PLL1_80M_CLK, AUDIO_PLL1_CLK, EXT_CLK_1}
+	},
+	{GPT5_CLK_ROOT, IP_CLOCK_SLICE, 47,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_400M_CLK,
+	  SYSTEM_PLL1_40M_CLK, VIDEO_PLL_CLK,
+	  SYSTEM_PLL1_80M_CLK, AUDIO_PLL1_CLK, EXT_CLK_2}
+	},
+	{GPT6_CLK_ROOT, IP_CLOCK_SLICE, 48,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_400M_CLK,
+	  SYSTEM_PLL1_40M_CLK, VIDEO_PLL_CLK,
+	  SYSTEM_PLL1_80M_CLK, AUDIO_PLL1_CLK, EXT_CLK_3}
+	},
+	{TRACE_CLK_ROOT, IP_CLOCK_SLICE, 49,
+	 {OSC_25M_CLK, SYSTEM_PLL1_133M_CLK, SYSTEM_PLL1_160M_CLK,
+	  VPU_PLL_CLK, SYSTEM_PLL2_125M_CLK,
+	  SYSTEM_PLL3_CLK, EXT_CLK_1, EXT_CLK_3}
+	},
+	{WDOG_CLK_ROOT, IP_CLOCK_SLICE, 50,
+	 {OSC_25M_CLK, SYSTEM_PLL1_133M_CLK, SYSTEM_PLL1_160M_CLK,
+	  VPU_PLL_CLK, SYSTEM_PLL2_125M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_166M_CLK}
+	},
+	{WRCLK_CLK_ROOT, IP_CLOCK_SLICE, 51,
+	 {OSC_25M_CLK, SYSTEM_PLL1_40M_CLK, VPU_PLL_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL1_266M_CLK, SYSTEM_PLL2_500M_CLK, SYSTEM_PLL1_100M_CLK}
+	},
+	{IPP_DO_CLKO1, IP_CLOCK_SLICE, 52,
+	 {OSC_25M_CLK, SYSTEM_PLL1_800M_CLK, OSC_27M_CLK,
+	  SYSTEM_PLL1_200M_CLK, AUDIO_PLL2_CLK,
+	  SYSTEM_PLL2_500M_CLK, VPU_PLL_CLK, SYSTEM_PLL1_80M_CLK}
+	},
+	{IPP_DO_CLKO2, IP_CLOCK_SLICE, 53,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_400M_CLK,
+	  SYSTEM_PLL2_166M_CLK, SYSTEM_PLL3_CLK,
+	  AUDIO_PLL1_CLK, VIDEO_PLL_CLK, OSC_32K_CLK}
+	},
+	{MIPI_DSI_CORE_CLK_ROOT, IP_CLOCK_SLICE, 54,
+	 {OSC_25M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL2_250M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL2_CLK, VIDEO_PLL_CLK}
+	},
+	{MIPI_DSI_PHY_REF_CLK_ROOT, IP_CLOCK_SLICE, 55,
+	 {OSC_25M_CLK, SYSTEM_PLL2_125M_CLK, SYSTEM_PLL2_100M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  EXT_CLK_2, AUDIO_PLL2_CLK, VIDEO_PLL_CLK}
+	},
+	{MIPI_DSI_DBI_CLK_ROOT, IP_CLOCK_SLICE, 56,
+	 {OSC_25M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL2_100M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL2_CLK, VIDEO_PLL_CLK}
+	},
+	{OLD_MIPI_DSI_ESC_CLK_ROOT, IP_CLOCK_SLICE, 57,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_80M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, EXT_CLK_3, AUDIO_PLL2_CLK}
+	},
+	{MIPI_CSI1_CORE_CLK_ROOT, IP_CLOCK_SLICE, 58,
+	 {OSC_25M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL2_250M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL2_CLK, VIDEO_PLL_CLK}
+	},
+	{MIPI_CSI1_PHY_REF_CLK_ROOT, IP_CLOCK_SLICE, 59,
+	 {OSC_25M_CLK, SYSTEM_PLL2_125M_CLK, SYSTEM_PLL2_100M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  EXT_CLK_2, AUDIO_PLL2_CLK, VIDEO_PLL_CLK}
+	},
+	{MIPI_CSI1_ESC_CLK_ROOT, IP_CLOCK_SLICE, 60,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_80M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, EXT_CLK_3, AUDIO_PLL2_CLK}
+	},
+	{MIPI_CSI2_CORE_CLK_ROOT, IP_CLOCK_SLICE, 61,
+	 {OSC_25M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL2_250M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, AUDIO_PLL2_CLK, VIDEO_PLL_CLK}
+	},
+	{MIPI_CSI2_PHY_REF_CLK_ROOT, IP_CLOCK_SLICE, 62,
+	 {OSC_25M_CLK, SYSTEM_PLL2_125M_CLK, SYSTEM_PLL2_100M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  EXT_CLK_2, AUDIO_PLL2_CLK, VIDEO_PLL_CLK}
+	},
+	{MIPI_CSI2_ESC_CLK_ROOT, IP_CLOCK_SLICE, 63,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_80M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, EXT_CLK_3, AUDIO_PLL2_CLK}
+	},
+	{PCIE2_CTRL_CLK_ROOT, IP_CLOCK_SLICE, 64,
+	 {OSC_25M_CLK, SYSTEM_PLL2_250M_CLK, SYSTEM_PLL2_200M_CLK,
+	  SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_500M_CLK, SYSTEM_PLL2_333M_CLK, SYSTEM_PLL3_CLK}
+	},
+	{PCIE2_PHY_CLK_ROOT, IP_CLOCK_SLICE, 65,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL2_500M_CLK,
+	  EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
+	  EXT_CLK_4, SYSTEM_PLL1_400M_CLK}
+	},
+	{PCIE2_AUX_CLK_ROOT, IP_CLOCK_SLICE, 66,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL2_50M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_100M_CLK,
+	  SYSTEM_PLL1_80M_CLK, SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_200M_CLK}
+	},
+	{ECSPI3_CLK_ROOT, IP_CLOCK_SLICE, 67,
+	 {OSC_25M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_40M_CLK,
+	  SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL2_CLK}
+	},
+	{OLD_MIPI_DSI_ESC_RX_ROOT, IP_CLOCK_SLICE, 68,
+	 {OSC_25M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_80M_CLK,
+	  SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_1000M_CLK,
+	  SYSTEM_PLL3_CLK, EXT_CLK_3, AUDIO_PLL2_CLK},
+	},
+	{DISPLAY_HDMI_CLK_ROOT, IP_CLOCK_SLICE, 69,
+	 {OSC_25M_CLK, SYSTEM_PLL1_200M_CLK, SYSTEM_PLL2_200M_CLK,
+	  VPU_PLL_CLK, SYSTEM_PLL1_800M_CLK,
+	  SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL3_CLK, EXT_CLK_4}
+	},
+	{DRAM_SEL_CFG, DRAM_SEL_CLOCK_SLICE, 0,
+	 {DRAM_PLL1_CLK}
+	},
+	{CORE_SEL_CFG, CORE_SEL_CLOCK_SLICE, 0,
+	 {DRAM_PLL1_CLK}
+	},
+};
+
+static int select(enum clk_root_index clock_id)
+{
+	int i, size;
+	struct clk_root_map *p = root_array;
+
+	size = ARRAY_SIZE(root_array);
+
+	for (i = 0; i < size; i++, p++) {
+		if (clock_id == p->entry)
+			return i;
+	}
+
+	return -EINVAL;
+}
+
+static void __iomem *get_clk_root_target(enum clk_slice_type slice_type,
+					 u32 slice_index)
+{
+	void __iomem *clk_root_target;
+
+	switch (slice_type) {
+	case CORE_CLOCK_SLICE:
+		clk_root_target =
+		(void __iomem *)&ccm_reg->core_root[slice_index];
+		break;
+	case BUS_CLOCK_SLICE:
+		clk_root_target =
+			(void __iomem *)&ccm_reg->bus_root[slice_index];
+		break;
+	case IP_CLOCK_SLICE:
+		clk_root_target =
+			(void __iomem *)&ccm_reg->ip_root[slice_index];
+		break;
+	case AHB_CLOCK_SLICE:
+		clk_root_target =
+			(void __iomem *)&ccm_reg->ahb_ipg_root[slice_index * 2];
+		break;
+	case IPG_CLOCK_SLICE:
+		clk_root_target =
+			(void __iomem *)&ccm_reg->ahb_ipg_root[slice_index * 2 + 1];
+		break;
+	case CORE_SEL_CLOCK_SLICE:
+		clk_root_target = (void __iomem *)&ccm_reg->core_sel;
+		break;
+	case DRAM_SEL_CLOCK_SLICE:
+		clk_root_target = (void __iomem *)&ccm_reg->dram_sel;
+		break;
+	default:
+		return NULL;
+	}
+
+	return clk_root_target;
+}
+
+int clock_get_target_val(enum clk_root_index clock_id, u32 *val)
+{
+	int root_entry;
+	struct clk_root_map *p;
+	void __iomem *clk_root_target;
+
+	if (clock_id >= CLK_ROOT_MAX)
+		return -EINVAL;
+
+	root_entry = select(clock_id);
+	if (root_entry < 0)
+		return -EINVAL;
+
+	p = &root_array[root_entry];
+	clk_root_target = get_clk_root_target(p->slice_type, p->slice_index);
+	if (!clk_root_target)
+		return -EINVAL;
+
+	*val = readl(clk_root_target);
+
+	return 0;
+}
+
+int clock_set_target_val(enum clk_root_index clock_id, u32 val)
+{
+	int root_entry;
+	struct clk_root_map *p;
+	void __iomem *clk_root_target;
+
+	if (clock_id >= CLK_ROOT_MAX)
+		return -EINVAL;
+
+	root_entry = select(clock_id);
+	if (root_entry < 0)
+		return -EINVAL;
+
+	p = &root_array[root_entry];
+	clk_root_target = get_clk_root_target(p->slice_type, p->slice_index);
+	if (!clk_root_target)
+		return -EINVAL;
+
+	writel(val, clk_root_target);
+
+	return 0;
+}
+
+int clock_root_enabled(enum clk_root_index clock_id)
+{
+	void __iomem *clk_root_target;
+	u32 slice_index, slice_type;
+	u32 val;
+	int root_entry;
+
+	if (clock_id >= CLK_ROOT_MAX)
+		return -EINVAL;
+
+	root_entry = select(clock_id);
+	if (root_entry < 0)
+		return -EINVAL;
+
+	slice_type = root_array[root_entry].slice_type;
+	slice_index = root_array[root_entry].slice_index;
+
+	if ((slice_type == IPG_CLOCK_SLICE) ||
+	    (slice_type == DRAM_SEL_CLOCK_SLICE) ||
+	    (slice_type == CORE_SEL_CLOCK_SLICE)) {
+		/*
+		 * Not supported, from CCM doc
+		 * TODO
+		 */
+		return 0;
+	}
+
+	clk_root_target = get_clk_root_target(slice_type, slice_index);
+	if (!clk_root_target)
+		return -EINVAL;
+
+	val = readl(clk_root_target);
+
+	return (val & CLK_ROOT_ON) ? 1 : 0;
+}
+
+/* CCGR CLK gate operation */
+int clock_enable(enum clk_ccgr_index index, bool enable)
+{
+	void __iomem *ccgr;
+
+	if (index >= CCGR_MAX)
+		return -EINVAL;
+
+	if (enable)
+		ccgr = (void __iomem *)&ccm_reg->ccgr_array[index].ccgr_set;
+	else
+		ccgr = (void __iomem *)&ccm_reg->ccgr_array[index].ccgr_clr;
+
+	writel(CCGR_CLK_ON_MASK, ccgr);
+
+	return 0;
+}
+
+int clock_get_prediv(enum clk_root_index clock_id, enum root_pre_div *pre_div)
+{
+	u32 val;
+	int root_entry;
+	struct clk_root_map *p;
+	void __iomem *clk_root_target;
+
+	if (clock_id >= CLK_ROOT_MAX)
+		return -EINVAL;
+
+	root_entry = select(clock_id);
+	if (root_entry < 0)
+		return -EINVAL;
+
+	p = &root_array[root_entry];
+
+	if ((p->slice_type == CORE_CLOCK_SLICE) ||
+	    (p->slice_type == IPG_CLOCK_SLICE) ||
+	    (p->slice_type == CORE_SEL_CLOCK_SLICE) ||
+	    (p->slice_type == DRAM_SEL_CLOCK_SLICE)) {
+		*pre_div = 0;
+		return 0;
+	}
+
+	clk_root_target = get_clk_root_target(p->slice_type, p->slice_index);
+	if (!clk_root_target)
+		return -EINVAL;
+
+	val = readl(clk_root_target);
+	val &= CLK_ROOT_PRE_DIV_MASK;
+	val >>= CLK_ROOT_PRE_DIV_SHIFT;
+
+	*pre_div = val;
+
+	return 0;
+}
+
+int clock_get_postdiv(enum clk_root_index clock_id,
+		      enum root_post_div *post_div)
+{
+	u32 val, mask;
+	int root_entry;
+	struct clk_root_map *p;
+	void __iomem *clk_root_target;
+
+	if (clock_id >= CLK_ROOT_MAX)
+		return -EINVAL;
+
+	root_entry = select(clock_id);
+	if (root_entry < 0)
+		return -EINVAL;
+
+	p = &root_array[root_entry];
+
+	if ((p->slice_type == CORE_SEL_CLOCK_SLICE) ||
+	    (p->slice_type == DRAM_SEL_CLOCK_SLICE)) {
+		*post_div = 0;
+		return 0;
+	}
+
+	clk_root_target = get_clk_root_target(p->slice_type, p->slice_index);
+	if (!clk_root_target)
+		return -EINVAL;
+
+	if (p->slice_type == IPG_CLOCK_SLICE)
+		mask = CLK_ROOT_IPG_POST_DIV_MASK;
+	else if (p->slice_type == CORE_CLOCK_SLICE)
+		mask = CLK_ROOT_CORE_POST_DIV_MASK;
+	else
+		mask = CLK_ROOT_POST_DIV_MASK;
+
+	val = readl(clk_root_target);
+	val &= mask;
+	val >>= CLK_ROOT_POST_DIV_SHIFT;
+
+	*post_div = val;
+
+	return 0;
+}
+
+int clock_get_src(enum clk_root_index clock_id, enum clk_root_src *p_clock_src)
+{
+	u32 val;
+	int root_entry;
+	struct clk_root_map *p;
+	void __iomem *clk_root_target;
+
+	if (clock_id >= CLK_ROOT_MAX)
+		return -EINVAL;
+
+	root_entry = select(clock_id);
+	if (root_entry < 0)
+		return -EINVAL;
+
+	p = &root_array[root_entry];
+
+	clk_root_target = get_clk_root_target(p->slice_type, p->slice_index);
+	if (!clk_root_target)
+		return -EINVAL;
+
+	val = readl(clk_root_target);
+	val &= CLK_ROOT_SRC_MUX_MASK;
+	val >>= CLK_ROOT_SRC_MUX_SHIFT;
+
+	*p_clock_src = p->src_mux[val];
+
+	return 0;
+}