Merge branch 'zte/soc' into next/soc

* zte/soc:
  ARM: zx: Add basic defconfig support for ZX296702
  ARM: dts: zx: add an initial zx296702 dts and doc
  clk: zx: add clock support to zx296702
  dt-bindings: Add #defines for ZTE ZX296702 clocks

14 files changed, 1403 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/arm/zte.txt b/Documentation/devicetree/bindings/arm/zte.txt
new file mode 100644
index 0000000..3ff5c9e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/zte.txt
@@ -0,0 +1,15 @@
+ZTE platforms device tree bindings
+---------------------------------------
+
+-  ZX296702 board:
+    Required root node properties:
+      - compatible = "zte,zx296702-ad1", "zte,zx296702"
+
+System management required properties:
+      - compatible = "zte,sysctrl"
+
+Low power management required properties:
+      - compatible = "zte,zx296702-pcu"
+
+Bus matrix required properties:
+      - compatible = "zte,zx-bus-matrix"
diff --git a/Documentation/devicetree/bindings/clock/zx296702-clk.txt b/Documentation/devicetree/bindings/clock/zx296702-clk.txt
new file mode 100644
index 0000000..750442b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/zx296702-clk.txt
@@ -0,0 +1,35 @@
+Device Tree Clock bindings for ZTE zx296702
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be one of the following:
+	"zte,zx296702-topcrm-clk":
+		zx296702 top clock selection, divider and gating
+
+	"zte,zx296702-lsp0crpm-clk" and
+	"zte,zx296702-lsp1crpm-clk":
+		zx296702 device level clock selection and gating
+
+- reg: Address and length of the register set
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell. See include/dt-bindings/clock/zx296702-clock.h
+for the full list of zx296702 clock IDs.
+
+
+topclk: topcrm@0x09800000 {
+        compatible = "zte,zx296702-topcrm-clk";
+        reg = <0x09800000 0x1000>;
+        #clock-cells = <1>;
+};
+
+uart0: serial@0x09405000 {
+        compatible = "zte,zx296702-uart";
+        reg = <0x09405000 0x1000>;
+        interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&lsp1clk ZX296702_UART0_PCLK>;
+        status = "disabled";
+};
diff --git a/Documentation/devicetree/bindings/serial/pl011.txt b/Documentation/devicetree/bindings/serial/pl011.txt
index ba3ecb8..cbae3d9 100644
--- a/Documentation/devicetree/bindings/serial/pl011.txt
+++ b/Documentation/devicetree/bindings/serial/pl011.txt
@@ -1,7 +1,7 @@
 * ARM AMBA Primecell PL011 serial UART
 
 Required properties:
-- compatible: must be "arm,primecell", "arm,pl011"
+- compatible: must be "arm,primecell", "arm,pl011", "zte,zx296702-uart"
 - reg: exactly one register range with length 0x1000
 - interrupts: exactly one interrupt specifier
 
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 8033919..717ffd5 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -211,3 +211,4 @@ xillybus	Xillybus Ltd.
 xlnx	Xilinx
 zyxel	ZyXEL Communications Corp.
 zarlink	Zarlink Semiconductor
+zte	ZTE Corp.
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 86217db..4814c6b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -660,6 +660,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt6592-evb.dtb \
 	mt8127-moose.dtb \
 	mt8135-evbp1.dtb
+dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb
 endif
 
 always		:= $(dtb-y)
diff --git a/arch/arm/boot/dts/zx296702-ad1.dts b/arch/arm/boot/dts/zx296702-ad1.dts
new file mode 100644
index 0000000..081f980
--- /dev/null
+++ b/arch/arm/boot/dts/zx296702-ad1.dts
@@ -0,0 +1,48 @@
+
+/dts-v1/;
+
+#include "zx296702.dtsi"
+
+/ {
+	model = "ZTE ZX296702 AD1 Board";
+	compatible = "zte,zx296702-ad1", "zte,zx296702";
+
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+	};
+
+	memory {
+		reg = <0x50000000 0x20000000>;
+	};
+};
+
+&mmc0 {
+	num-slots = <1>;
+	supports-highspeed;
+	non-removable;
+	disable-wp;
+	status = "okay";
+
+	slot@0 {
+		reg = <0>;
+		bus-width = <4>;
+	};
+};
+
+&mmc1 {
+	num-slots = <1>;
+	supports-highspeed;
+	non-removable;
+	disable-wp;
+	status = "okay";
+
+	slot@0 {
+		reg = <0>;
+		bus-width = <8>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/zx296702.dtsi b/arch/arm/boot/dts/zx296702.dtsi
new file mode 100644
index 0000000..d45c8fc
--- /dev/null
+++ b/arch/arm/boot/dts/zx296702.dtsi
@@ -0,0 +1,139 @@
+
+#include "skeleton.dtsi"
+#include <dt-bindings/clock/zx296702-clock.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		enable-method = "zte,zx296702-smp";
+
+		cpu@0 {
+			compatible = "arm,cortex-a9";
+			device_type = "cpu";
+			next-level-cache = <&l2cc>;
+			reg = <0>;
+		};
+
+		cpu@1 {
+			compatible = "arm,cortex-a9";
+			device_type = "cpu";
+			next-level-cache = <&l2cc>;
+			reg = <1>;
+		};
+	};
+
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		interrupt-parent = <&intc>;
+		ranges;
+
+		matrix: bus-matrix@400000 {
+			compatible = "zte,zx-bus-matrix";
+			reg = <0x00400000 0x1000>;
+		};
+
+		intc: interrupt-controller@00801000 {
+			compatible = "arm,cortex-a9-gic";
+			#interrupt-cells = <3>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			interrupt-controller;
+			reg = <0x00801000 0x1000>,
+			      <0x00800100 0x100>;
+		};
+
+		global_timer: timer@008000200 {
+			compatible = "arm,cortex-a9-global-timer";
+			reg = <0x00800200 0x20>;
+			interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&intc>;
+			clocks = <&topclk ZX296702_A9_PERIPHCLK>;
+		};
+
+		l2cc: l2-cache-controller@0x00c00000 {
+			compatible = "arm,pl310-cache";
+			reg = <0x00c00000 0x1000>;
+			cache-unified;
+			cache-level = <2>;
+			arm,data-latency = <1 1 1>;
+			arm,tag-latency = <1 1 1>;
+			arm,double-linefill = <1>;
+			arm,double-linefill-incr = <0>;
+		};
+
+		pcu: pcu@0xa0008000 {
+			compatible = "zte,zx296702-pcu";
+			reg = <0xa0008000 0x1000>;
+		};
+
+		topclk: topclk@0x09800000 {
+			compatible = "zte,zx296702-topcrm-clk";
+			reg = <0x09800000 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		lsp1clk: lsp1clk@0x09400000 {
+			compatible = "zte,zx296702-lsp1crpm-clk";
+			reg = <0x09400000 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		lsp0clk: lsp0clk@0x0b000000 {
+			compatible = "zte,zx296702-lsp0crpm-clk";
+			reg = <0x0b000000 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		uart0: serial@0x09405000 {
+			compatible = "zte,zx296702-uart";
+			reg = <0x09405000 0x1000>;
+			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&lsp1clk ZX296702_UART0_WCLK>;
+			status = "disabled";
+		};
+
+		uart1: serial@0x09406000 {
+			compatible = "zte,zx296702-uart";
+			reg = <0x09406000 0x1000>;
+			interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&lsp1clk ZX296702_UART1_WCLK>;
+			status = "disabled";
+		};
+
+		mmc0: mmc@0x09408000 {
+			compatible = "snps,dw-mshc";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x09408000 0x1000>;
+			interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+			fifo-depth = <32>;
+			clocks = <&lsp1clk ZX296702_SDMMC0_PCLK>,
+				 <&lsp1clk ZX296702_SDMMC0_WCLK>;
+			clock-names = "biu", "ciu";
+			status = "disabled";
+		};
+
+		mmc1: mmc@0x0b003000 {
+			compatible = "snps,dw-mshc";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0b003000 0x1000>;
+			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+			fifo-depth = <32>;
+			clocks = <&lsp0clk ZX296702_SDMMC1_PCLK>,
+				 <&lsp0clk ZX296702_SDMMC1_WCLK>;
+			clock-names = "biu", "ciu";
+			status = "disabled";
+		};
+
+		sysctrl: sysctrl@0xa0007000 {
+			compatible = "zte,sysctrl", "syscon";
+			reg = <0xa0007000 0x1000>;
+		};
+	};
+};
diff --git a/arch/arm/configs/zx_defconfig b/arch/arm/configs/zx_defconfig
new file mode 100644
index 0000000..b200bb0
--- /dev/null
+++ b/arch/arm/configs/zx_defconfig
@@ -0,0 +1,129 @@
+CONFIG_EXPERIMENTAL=y
+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_DEBUG=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
+CONFIG_SLAB=y
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_ARCH_ZX=y
+CONFIG_SOC_ZX296702=y
+# CONFIG_SWP_EMULATE is not set
+CONFIG_ARM_ERRATA_754322=y
+CONFIG_ARM_ERRATA_775420=y
+CONFIG_SMP=y
+CONFIG_VMSPLIT_2G=y
+CONFIG_PREEMPT=y
+CONFIG_AEABI=y
+CONFIG_KSM=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_VFP=y
+CONFIG_NEON=y
+CONFIG_KERNEL_MODE_NEON=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_HIBERNATION=y
+CONFIG_PM_RUNTIME=y
+CONFIG_PM_DEBUG=y
+CONFIG_SUSPEND_TIME=y
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CMDLINE="console=ttyAMA0,115200 debug earlyprintk root=/dev/ram rw rootwait"
+#CONFIG_NET is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=192
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=1
+CONFIG_BLK_DEV_RAM_SIZE=8192
+CONFIG_UID_STAT=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_CHR_DEV_SCH=y
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_MD=y
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_CRYPT=y
+CONFIG_DM_UEVENT=y
+CONFIG_DM_VERITY=y
+CONFIG_NETDEVICES=y
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_SERIO=y
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SPI=y
+CONFIG_LOGO=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_CONSOLE_POLL=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_MMC=y
+CONFIG_MMC_UNSAFE_RESUME=y
+CONFIG_MMC_BLOCK_MINORS=16
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_IDMAC=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXT4_DEBUG=y
+CONFIG_FUSE_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_CODEPAGE=936
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+#CONFIG_NFS_FS is not set
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_UTF8=y
+CONFIG_PRINTK_TIME=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_INFO=y
+CONFIG_FRAME_WARN=4096
+CONFIG_DEBUG_FS=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_PANIC_TIMEOUT=5
+# CONFIG_SCHED_DEBUG is not set
+CONFIG_SCHEDSTATS=y
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_MUTEXES=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+# CONFIG_FTRACE is not set
+CONFIG_KGDB=y
+CONFIG_KGDB_KDB=y
+# CONFIG_ARM_UNWIND is not set
+CONFIG_DEBUG_PREEMPT=y
+CONFIG_DEBUG_USER=y
+CONFIG_DEBUG_LL=y
+CONFIG_DYNAMIC_DEBUG=y
+CONFIG_STACKTRACE=y
+CONFIG_DEBUG_ZTE_ZX=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_GPIOLIB=y
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index d7a507f..4dcbdd3 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -73,4 +73,5 @@ obj-$(CONFIG_ARCH_OMAP2PLUS)		+= ti/
 obj-$(CONFIG_ARCH_U8500)		+= ux500/
 obj-$(CONFIG_COMMON_CLK_VERSATILE)	+= versatile/
 obj-$(CONFIG_X86)			+= x86/
+obj-$(CONFIG_ARCH_ZX)			+= zte/
 obj-$(CONFIG_ARCH_ZYNQ)			+= zynq/
diff --git a/drivers/clk/zte/Makefile b/drivers/clk/zte/Makefile
new file mode 100644
index 0000000..95b707c
--- /dev/null
+++ b/drivers/clk/zte/Makefile
@@ -0,0 +1,2 @@
+obj-y := clk-pll.o
+obj-$(CONFIG_SOC_ZX296702) += clk-zx296702.o
diff --git a/drivers/clk/zte/clk-pll.c b/drivers/clk/zte/clk-pll.c
new file mode 100644
index 0000000..c3b221a
--- /dev/null
+++ b/drivers/clk/zte/clk-pll.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2014 Linaro Ltd.
+ * Copyright (C) 2014 ZTE Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include "clk.h"
+
+#define to_clk_zx_pll(_hw) container_of(_hw, struct clk_zx_pll, hw)
+
+#define CFG0_CFG1_OFFSET 4
+#define LOCK_FLAG BIT(30)
+#define POWER_DOWN BIT(31)
+
+static int rate_to_idx(struct clk_zx_pll *zx_pll, unsigned long rate)
+{
+	const struct zx_pll_config *config = zx_pll->lookup_table;
+	int i;
+
+	for (i = 0; i < zx_pll->count; i++) {
+		if (config[i].rate > rate)
+			return i > 0 ? i - 1 : 0;
+
+		if (config[i].rate == rate)
+			return i;
+	}
+
+	return i - 1;
+}
+
+static int hw_to_idx(struct clk_zx_pll *zx_pll)
+{
+	const struct zx_pll_config *config = zx_pll->lookup_table;
+	u32 hw_cfg0, hw_cfg1;
+	int i;
+
+	hw_cfg0 = readl_relaxed(zx_pll->reg_base);
+	hw_cfg1 = readl_relaxed(zx_pll->reg_base + CFG0_CFG1_OFFSET);
+
+	/* For matching the value in lookup table */
+	hw_cfg0 &= ~LOCK_FLAG;
+	hw_cfg0 |= POWER_DOWN;
+
+	for (i = 0; i < zx_pll->count; i++) {
+		if (hw_cfg0 == config[i].cfg0 && hw_cfg1 == config[i].cfg1)
+			return i;
+	}
+
+	return -EINVAL;
+}
+
+static unsigned long zx_pll_recalc_rate(struct clk_hw *hw,
+					unsigned long parent_rate)
+{
+	struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
+	int idx;
+
+	idx = hw_to_idx(zx_pll);
+	if (unlikely(idx == -EINVAL))
+		return 0;
+
+	return zx_pll->lookup_table[idx].rate;
+}
+
+static long zx_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+			      unsigned long *prate)
+{
+	struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
+	int idx;
+
+	idx = rate_to_idx(zx_pll, rate);
+
+	return zx_pll->lookup_table[idx].rate;
+}
+
+static int zx_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+			   unsigned long parent_rate)
+{
+	/* Assume current cpu is not running on current PLL */
+	struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
+	const struct zx_pll_config *config;
+	int idx;
+
+	idx = rate_to_idx(zx_pll, rate);
+	config = &zx_pll->lookup_table[idx];
+
+	writel_relaxed(config->cfg0, zx_pll->reg_base);
+	writel_relaxed(config->cfg1, zx_pll->reg_base + CFG0_CFG1_OFFSET);
+
+	return 0;
+}
+
+static int zx_pll_enable(struct clk_hw *hw)
+{
+	struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
+	u32 reg;
+
+	reg = readl_relaxed(zx_pll->reg_base);
+	writel_relaxed(reg & ~POWER_DOWN, zx_pll->reg_base);
+
+	return readl_relaxed_poll_timeout(zx_pll->reg_base, reg,
+					  reg & LOCK_FLAG, 0, 100);
+}
+
+static void zx_pll_disable(struct clk_hw *hw)
+{
+	struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
+	u32 reg;
+
+	reg = readl_relaxed(zx_pll->reg_base);
+	writel_relaxed(reg | POWER_DOWN, zx_pll->reg_base);
+}
+
+static int zx_pll_is_enabled(struct clk_hw *hw)
+{
+	struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
+	u32 reg;
+
+	reg = readl_relaxed(zx_pll->reg_base);
+
+	return !(reg & POWER_DOWN);
+}
+
+static const struct clk_ops zx_pll_ops = {
+	.recalc_rate = zx_pll_recalc_rate,
+	.round_rate = zx_pll_round_rate,
+	.set_rate = zx_pll_set_rate,
+	.enable = zx_pll_enable,
+	.disable = zx_pll_disable,
+	.is_enabled = zx_pll_is_enabled,
+};
+
+struct clk *clk_register_zx_pll(const char *name, const char *parent_name,
+	unsigned long flags, void __iomem *reg_base,
+	const struct zx_pll_config *lookup_table, int count, spinlock_t *lock)
+{
+	struct clk_zx_pll *zx_pll;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	zx_pll = kzalloc(sizeof(*zx_pll), GFP_KERNEL);
+	if (!zx_pll)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &zx_pll_ops;
+	init.flags = flags;
+	init.parent_names = parent_name ? &parent_name : NULL;
+	init.num_parents = parent_name ? 1 : 0;
+
+	zx_pll->reg_base = reg_base;
+	zx_pll->lookup_table = lookup_table;
+	zx_pll->count = count;
+	zx_pll->lock = lock;
+	zx_pll->hw.init = &init;
+
+	clk = clk_register(NULL, &zx_pll->hw);
+	if (IS_ERR(clk))
+		kfree(zx_pll);
+
+	return clk;
+}
diff --git a/drivers/clk/zte/clk-zx296702.c b/drivers/clk/zte/clk-zx296702.c
new file mode 100644
index 0000000..929d033
--- /dev/null
+++ b/drivers/clk/zte/clk-zx296702.c
@@ -0,0 +1,657 @@
+/*
+ * Copyright 2014 Linaro Ltd.
+ * Copyright (C) 2014 ZTE Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <dt-bindings/clock/zx296702-clock.h>
+#include "clk.h"
+
+static DEFINE_SPINLOCK(reg_lock);
+
+static void __iomem *topcrm_base;
+static void __iomem *lsp0crpm_base;
+static void __iomem *lsp1crpm_base;
+
+static struct clk *topclk[ZX296702_TOPCLK_END];
+static struct clk *lsp0clk[ZX296702_LSP0CLK_END];
+static struct clk *lsp1clk[ZX296702_LSP1CLK_END];
+
+static struct clk_onecell_data topclk_data;
+static struct clk_onecell_data lsp0clk_data;
+static struct clk_onecell_data lsp1clk_data;
+
+#define CLK_MUX			(topcrm_base + 0x04)
+#define CLK_DIV			(topcrm_base + 0x08)
+#define CLK_EN0			(topcrm_base + 0x0c)
+#define CLK_EN1			(topcrm_base + 0x10)
+#define VOU_LOCAL_CLKEN		(topcrm_base + 0x68)
+#define VOU_LOCAL_CLKSEL	(topcrm_base + 0x70)
+#define VOU_LOCAL_DIV2_SET	(topcrm_base + 0x74)
+#define CLK_MUX1		(topcrm_base + 0x8c)
+
+#define CLK_SDMMC1		(lsp0crpm_base + 0x0c)
+
+#define CLK_UART0		(lsp1crpm_base + 0x20)
+#define CLK_UART1		(lsp1crpm_base + 0x24)
+#define CLK_SDMMC0		(lsp1crpm_base + 0x2c)
+
+static const struct zx_pll_config pll_a9_config[] = {
+	{ .rate = 700000000, .cfg0 = 0x800405d1, .cfg1 = 0x04555555 },
+	{ .rate = 800000000, .cfg0 = 0x80040691, .cfg1 = 0x04aaaaaa },
+	{ .rate = 900000000, .cfg0 = 0x80040791, .cfg1 = 0x04000000 },
+	{ .rate = 1000000000, .cfg0 = 0x80040851, .cfg1 = 0x04555555 },
+	{ .rate = 1100000000, .cfg0 = 0x80040911, .cfg1 = 0x04aaaaaa },
+	{ .rate = 1200000000, .cfg0 = 0x80040a11, .cfg1 = 0x04000000 },
+};
+
+static const struct clk_div_table main_hlk_div[] = {
+	{ .val = 1, .div = 2, },
+	{ .val = 3, .div = 4, },
+	{ /* sentinel */ }
+};
+
+static const struct clk_div_table a9_as1_aclk_divider[] = {
+	{ .val = 0, .div = 1, },
+	{ .val = 1, .div = 2, },
+	{ .val = 3, .div = 4, },
+	{ /* sentinel */ }
+};
+
+static const struct clk_div_table sec_wclk_divider[] = {
+	{ .val = 0, .div = 1, },
+	{ .val = 1, .div = 2, },
+	{ .val = 3, .div = 4, },
+	{ .val = 5, .div = 6, },
+	{ .val = 7, .div = 8, },
+	{ /* sentinel */ }
+};
+
+static const char * matrix_aclk_sel[] = {
+	"pll_mm0_198M",
+	"osc",
+	"clk_148M5",
+	"pll_lsp_104M",
+};
+
+static const char * a9_wclk_sel[] = {
+	"pll_a9",
+	"osc",
+	"clk_500",
+	"clk_250",
+};
+
+static const char * a9_as1_aclk_sel[] = {
+	"clk_250",
+	"osc",
+	"pll_mm0_396M",
+	"pll_mac_333M",
+};
+
+static const char * a9_trace_clkin_sel[] = {
+	"clk_74M25",
+	"pll_mm1_108M",
+	"clk_125",
+	"clk_148M5",
+};
+
+static const char * decppu_aclk_sel[] = {
+	"clk_250",
+	"pll_mm0_198M",
+	"pll_lsp_104M",
+	"pll_audio_294M912",
+};
+
+static const char * vou_main_wclk_sel[] = {
+	"clk_148M5",
+	"clk_74M25",
+	"clk_27",
+	"pll_mm1_54M",
+};
+
+static const char * vou_scaler_wclk_sel[] = {
+	"clk_250",
+	"pll_mac_333M",
+	"pll_audio_294M912",
+	"pll_mm0_198M",
+};
+
+static const char * r2d_wclk_sel[] = {
+	"pll_audio_294M912",
+	"pll_mac_333M",
+	"pll_a9_350M",
+	"pll_mm0_396M",
+};
+
+static const char * ddr_wclk_sel[] = {
+	"pll_mac_333M",
+	"pll_ddr_266M",
+	"pll_audio_294M912",
+	"pll_mm0_198M",
+};
+
+static const char * nand_wclk_sel[] = {
+	"pll_lsp_104M",
+	"osc",
+};
+
+static const char * lsp_26_wclk_sel[] = {
+	"pll_lsp_26M",
+	"osc",
+};
+
+static const char * vl0_sel[] = {
+	"vou_main_channel_div",
+	"vou_aux_channel_div",
+};
+
+static const char * hdmi_sel[] = {
+	"vou_main_channel_wclk",
+	"vou_aux_channel_wclk",
+};
+
+static const char * sdmmc0_wclk_sel[] = {
+	"lsp1_104M_wclk",
+	"lsp1_26M_wclk",
+};
+
+static const char * sdmmc1_wclk_sel[] = {
+	"lsp0_104M_wclk",
+	"lsp0_26M_wclk",
+};
+
+static const char * uart_wclk_sel[] = {
+	"lsp1_104M_wclk",
+	"lsp1_26M_wclk",
+};
+
+static inline struct clk *zx_divtbl(const char *name, const char *parent,
+				    void __iomem *reg, u8 shift, u8 width,
+				    const struct clk_div_table *table)
+{
+	return clk_register_divider_table(NULL, name, parent, 0, reg, shift,
+					  width, 0, table, &reg_lock);
+}
+
+static inline struct clk *zx_div(const char *name, const char *parent,
+				 void __iomem *reg, u8 shift, u8 width)
+{
+	return clk_register_divider(NULL, name, parent, 0,
+				    reg, shift, width, 0, &reg_lock);
+}
+
+static inline struct clk *zx_mux(const char *name, const char **parents,
+		int num_parents, void __iomem *reg, u8 shift, u8 width)
+{
+	return clk_register_mux(NULL, name, parents, num_parents,
+				0, reg, shift, width, 0, &reg_lock);
+}
+
+static inline struct clk *zx_gate(const char *name, const char *parent,
+				  void __iomem *reg, u8 shift)
+{
+	return clk_register_gate(NULL, name, parent, CLK_IGNORE_UNUSED,
+				 reg, shift, 0, &reg_lock);
+}
+
+static void __init zx296702_top_clocks_init(struct device_node *np)
+{
+	struct clk **clk = topclk;
+	int i;
+
+	topcrm_base = of_iomap(np, 0);
+	WARN_ON(!topcrm_base);
+
+	clk[ZX296702_OSC] =
+		clk_register_fixed_rate(NULL, "osc", NULL, CLK_IS_ROOT,
+				30000000);
+	clk[ZX296702_PLL_A9] =
+		clk_register_zx_pll("pll_a9", "osc", 0, topcrm_base
+				+ 0x01c, pll_a9_config,
+				ARRAY_SIZE(pll_a9_config), &reg_lock);
+
+	/* TODO: pll_a9_350M look like changeble follow a9 pll */
+	clk[ZX296702_PLL_A9_350M] =
+		clk_register_fixed_rate(NULL, "pll_a9_350M", "osc", 0,
+				350000000);
+	clk[ZX296702_PLL_MAC_1000M] =
+		clk_register_fixed_rate(NULL, "pll_mac_1000M", "osc", 0,
+				1000000000);
+	clk[ZX296702_PLL_MAC_333M] =
+		clk_register_fixed_rate(NULL, "pll_mac_333M",	 "osc", 0,
+				333000000);
+	clk[ZX296702_PLL_MM0_1188M] =
+		clk_register_fixed_rate(NULL, "pll_mm0_1188M", "osc", 0,
+				1188000000);
+	clk[ZX296702_PLL_MM0_396M] =
+		clk_register_fixed_rate(NULL, "pll_mm0_396M",  "osc", 0,
+				396000000);
+	clk[ZX296702_PLL_MM0_198M] =
+		clk_register_fixed_rate(NULL, "pll_mm0_198M",  "osc", 0,
+				198000000);
+	clk[ZX296702_PLL_MM1_108M] =
+		clk_register_fixed_rate(NULL, "pll_mm1_108M",  "osc", 0,
+				108000000);
+	clk[ZX296702_PLL_MM1_72M] =
+		clk_register_fixed_rate(NULL, "pll_mm1_72M",	 "osc", 0,
+				72000000);
+	clk[ZX296702_PLL_MM1_54M] =
+		clk_register_fixed_rate(NULL, "pll_mm1_54M",	 "osc", 0,
+				54000000);
+	clk[ZX296702_PLL_LSP_104M] =
+		clk_register_fixed_rate(NULL, "pll_lsp_104M",  "osc", 0,
+				104000000);
+	clk[ZX296702_PLL_LSP_26M] =
+		clk_register_fixed_rate(NULL, "pll_lsp_26M",	 "osc", 0,
+				26000000);
+	clk[ZX296702_PLL_DDR_266M] =
+		clk_register_fixed_rate(NULL, "pll_ddr_266M",	 "osc", 0,
+				266000000);
+	clk[ZX296702_PLL_AUDIO_294M912] =
+		clk_register_fixed_rate(NULL, "pll_audio_294M912", "osc", 0,
+				294912000);
+
+	/* bus clock */
+	clk[ZX296702_MATRIX_ACLK] =
+		zx_mux("matrix_aclk", matrix_aclk_sel,
+				ARRAY_SIZE(matrix_aclk_sel), CLK_MUX, 2, 2);
+	clk[ZX296702_MAIN_HCLK] =
+		zx_divtbl("main_hclk", "matrix_aclk", CLK_DIV, 0, 2,
+				main_hlk_div);
+	clk[ZX296702_MAIN_PCLK] =
+		zx_divtbl("main_pclk", "matrix_aclk", CLK_DIV, 2, 2,
+				main_hlk_div);
+
+	/* cpu clock */
+	clk[ZX296702_CLK_500] =
+		clk_register_fixed_factor(NULL, "clk_500", "pll_mac_1000M", 0,
+				1, 2);
+	clk[ZX296702_CLK_250] =
+		clk_register_fixed_factor(NULL, "clk_250", "pll_mac_1000M", 0,
+				1, 4);
+	clk[ZX296702_CLK_125] =
+		clk_register_fixed_factor(NULL, "clk_125", "clk_250", 0, 1, 2);
+	clk[ZX296702_CLK_148M5] =
+		clk_register_fixed_factor(NULL, "clk_148M5", "pll_mm0_1188M", 0,
+				1, 8);
+	clk[ZX296702_CLK_74M25] =
+		clk_register_fixed_factor(NULL, "clk_74M25", "pll_mm0_1188M", 0,
+				1, 16);
+	clk[ZX296702_A9_WCLK] =
+		zx_mux("a9_wclk", a9_wclk_sel, ARRAY_SIZE(a9_wclk_sel), CLK_MUX,
+				0, 2);
+	clk[ZX296702_A9_AS1_ACLK_MUX] =
+		zx_mux("a9_as1_aclk_mux", a9_as1_aclk_sel,
+				ARRAY_SIZE(a9_as1_aclk_sel), CLK_MUX, 4, 2);
+	clk[ZX296702_A9_TRACE_CLKIN_MUX] =
+		zx_mux("a9_trace_clkin_mux", a9_trace_clkin_sel,
+				ARRAY_SIZE(a9_trace_clkin_sel), CLK_MUX1, 0, 2);
+	clk[ZX296702_A9_AS1_ACLK_DIV] =
+		zx_divtbl("a9_as1_aclk_div", "a9_as1_aclk_mux", CLK_DIV, 4, 2,
+				a9_as1_aclk_divider);
+
+	/* multi-media clock */
+	clk[ZX296702_CLK_2] =
+		clk_register_fixed_factor(NULL, "clk_2", "pll_mm1_72M", 0,
+				1, 36);
+	clk[ZX296702_CLK_27] =
+		clk_register_fixed_factor(NULL, "clk_27", "pll_mm1_54M", 0,
+				1, 2);
+	clk[ZX296702_DECPPU_ACLK_MUX] =
+		zx_mux("decppu_aclk_mux", decppu_aclk_sel,
+				ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 6, 2);
+	clk[ZX296702_PPU_ACLK_MUX] =
+		zx_mux("ppu_aclk_mux", decppu_aclk_sel,
+				ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 8, 2);
+	clk[ZX296702_MALI400_ACLK_MUX] =
+		zx_mux("mali400_aclk_mux", decppu_aclk_sel,
+				ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 12, 2);
+	clk[ZX296702_VOU_ACLK_MUX] =
+		zx_mux("vou_aclk_mux", decppu_aclk_sel,
+				ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 10, 2);
+	clk[ZX296702_VOU_MAIN_WCLK_MUX] =
+		zx_mux("vou_main_wclk_mux", vou_main_wclk_sel,
+				ARRAY_SIZE(vou_main_wclk_sel), CLK_MUX, 14, 2);
+	clk[ZX296702_VOU_AUX_WCLK_MUX] =
+		zx_mux("vou_aux_wclk_mux", vou_main_wclk_sel,
+				ARRAY_SIZE(vou_main_wclk_sel), CLK_MUX, 16, 2);
+	clk[ZX296702_VOU_SCALER_WCLK_MUX] =
+		zx_mux("vou_scaler_wclk_mux", vou_scaler_wclk_sel,
+				ARRAY_SIZE(vou_scaler_wclk_sel), CLK_MUX,
+				18, 2);
+	clk[ZX296702_R2D_ACLK_MUX] =
+		zx_mux("r2d_aclk_mux", decppu_aclk_sel,
+				ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 20, 2);
+	clk[ZX296702_R2D_WCLK_MUX] =
+		zx_mux("r2d_wclk_mux", r2d_wclk_sel,
+				ARRAY_SIZE(r2d_wclk_sel), CLK_MUX, 22, 2);
+
+	/* other clock */
+	clk[ZX296702_CLK_50] =
+		clk_register_fixed_factor(NULL, "clk_50", "pll_mac_1000M",
+				0, 1, 20);
+	clk[ZX296702_CLK_25] =
+		clk_register_fixed_factor(NULL, "clk_25", "pll_mac_1000M",
+				0, 1, 40);
+	clk[ZX296702_CLK_12] =
+		clk_register_fixed_factor(NULL, "clk_12", "pll_mm1_72M",
+				0, 1, 6);
+	clk[ZX296702_CLK_16M384] =
+		clk_register_fixed_factor(NULL, "clk_16M384",
+				"pll_audio_294M912", 0, 1, 18);
+	clk[ZX296702_CLK_32K768] =
+		clk_register_fixed_factor(NULL, "clk_32K768", "clk_16M384",
+				0, 1, 500);
+	clk[ZX296702_SEC_WCLK_DIV] =
+		zx_divtbl("sec_wclk_div", "pll_lsp_104M", CLK_DIV, 6, 3,
+				sec_wclk_divider);
+	clk[ZX296702_DDR_WCLK_MUX] =
+		zx_mux("ddr_wclk_mux", ddr_wclk_sel,
+				ARRAY_SIZE(ddr_wclk_sel), CLK_MUX, 24, 2);
+	clk[ZX296702_NAND_WCLK_MUX] =
+		zx_mux("nand_wclk_mux", nand_wclk_sel,
+				ARRAY_SIZE(nand_wclk_sel), CLK_MUX, 24, 2);
+	clk[ZX296702_LSP_26_WCLK_MUX] =
+		zx_mux("lsp_26_wclk_mux", lsp_26_wclk_sel,
+				ARRAY_SIZE(lsp_26_wclk_sel), CLK_MUX, 27, 1);
+
+	/* gates */
+	clk[ZX296702_A9_AS0_ACLK] =
+		zx_gate("a9_as0_aclk",	"matrix_aclk",		CLK_EN0, 0);
+	clk[ZX296702_A9_AS1_ACLK] =
+		zx_gate("a9_as1_aclk",	"a9_as1_aclk_div",	CLK_EN0, 1);
+	clk[ZX296702_A9_TRACE_CLKIN] =
+		zx_gate("a9_trace_clkin", "a9_trace_clkin_mux",	CLK_EN0, 2);
+	clk[ZX296702_DECPPU_AXI_M_ACLK] =
+		zx_gate("decppu_axi_m_aclk", "decppu_aclk_mux", CLK_EN0, 3);
+	clk[ZX296702_DECPPU_AHB_S_HCLK] =
+		zx_gate("decppu_ahb_s_hclk",	"main_hclk",	CLK_EN0, 4);
+	clk[ZX296702_PPU_AXI_M_ACLK] =
+		zx_gate("ppu_axi_m_aclk",	"ppu_aclk_mux",	CLK_EN0, 5);
+	clk[ZX296702_PPU_AHB_S_HCLK] =
+		zx_gate("ppu_ahb_s_hclk",	"main_hclk",	CLK_EN0, 6);
+	clk[ZX296702_VOU_AXI_M_ACLK] =
+		zx_gate("vou_axi_m_aclk",	"vou_aclk_mux",	CLK_EN0, 7);
+	clk[ZX296702_VOU_APB_PCLK] =
+		zx_gate("vou_apb_pclk",	"main_pclk",		CLK_EN0, 8);
+	clk[ZX296702_VOU_MAIN_CHANNEL_WCLK] =
+		zx_gate("vou_main_channel_wclk", "vou_main_wclk_mux",
+				CLK_EN0, 9);
+	clk[ZX296702_VOU_AUX_CHANNEL_WCLK] =
+		zx_gate("vou_aux_channel_wclk", "vou_aux_wclk_mux",
+				CLK_EN0, 10);
+	clk[ZX296702_VOU_HDMI_OSCLK_CEC] =
+		zx_gate("vou_hdmi_osclk_cec", "clk_2",		CLK_EN0, 11);
+	clk[ZX296702_VOU_SCALER_WCLK] =
+		zx_gate("vou_scaler_wclk", "vou_scaler_wclk_mux", CLK_EN0, 12);
+	clk[ZX296702_MALI400_AXI_M_ACLK] =
+		zx_gate("mali400_axi_m_aclk", "mali400_aclk_mux", CLK_EN0, 13);
+	clk[ZX296702_MALI400_APB_PCLK] =
+		zx_gate("mali400_apb_pclk",	"main_pclk",	CLK_EN0, 14);
+	clk[ZX296702_R2D_WCLK] =
+		zx_gate("r2d_wclk",		"r2d_wclk_mux",	CLK_EN0, 15);
+	clk[ZX296702_R2D_AXI_M_ACLK] =
+		zx_gate("r2d_axi_m_aclk",	"r2d_aclk_mux",	CLK_EN0, 16);
+	clk[ZX296702_R2D_AHB_HCLK] =
+		zx_gate("r2d_ahb_hclk",		"main_hclk",	CLK_EN0, 17);
+	clk[ZX296702_DDR3_AXI_S0_ACLK] =
+		zx_gate("ddr3_axi_s0_aclk",	"matrix_aclk",	CLK_EN0, 18);
+	clk[ZX296702_DDR3_APB_PCLK] =
+		zx_gate("ddr3_apb_pclk",	"main_pclk",	CLK_EN0, 19);
+	clk[ZX296702_DDR3_WCLK] =
+		zx_gate("ddr3_wclk",		"ddr_wclk_mux",	CLK_EN0, 20);
+	clk[ZX296702_USB20_0_AHB_HCLK] =
+		zx_gate("usb20_0_ahb_hclk",	"main_hclk",	CLK_EN0, 21);
+	clk[ZX296702_USB20_0_EXTREFCLK] =
+		zx_gate("usb20_0_extrefclk",	"clk_12",	CLK_EN0, 22);
+	clk[ZX296702_USB20_1_AHB_HCLK] =
+		zx_gate("usb20_1_ahb_hclk",	"main_hclk",	CLK_EN0, 23);
+	clk[ZX296702_USB20_1_EXTREFCLK] =
+		zx_gate("usb20_1_extrefclk",	"clk_12",	CLK_EN0, 24);
+	clk[ZX296702_USB20_2_AHB_HCLK] =
+		zx_gate("usb20_2_ahb_hclk",	"main_hclk",	CLK_EN0, 25);
+	clk[ZX296702_USB20_2_EXTREFCLK] =
+		zx_gate("usb20_2_extrefclk",	"clk_12",	CLK_EN0, 26);
+	clk[ZX296702_GMAC_AXI_M_ACLK] =
+		zx_gate("gmac_axi_m_aclk",	"matrix_aclk",	CLK_EN0, 27);
+	clk[ZX296702_GMAC_APB_PCLK] =
+		zx_gate("gmac_apb_pclk",	"main_pclk",	CLK_EN0, 28);
+	clk[ZX296702_GMAC_125_CLKIN] =
+		zx_gate("gmac_125_clkin",	"clk_125",	CLK_EN0, 29);
+	clk[ZX296702_GMAC_RMII_CLKIN] =
+		zx_gate("gmac_rmii_clkin",	"clk_50",	CLK_EN0, 30);
+	clk[ZX296702_GMAC_25M_CLK] =
+		zx_gate("gmac_25M_clk",		"clk_25",	CLK_EN0, 31);
+	clk[ZX296702_NANDFLASH_AHB_HCLK] =
+		zx_gate("nandflash_ahb_hclk", "main_hclk",	CLK_EN1, 0);
+	clk[ZX296702_NANDFLASH_WCLK] =
+		zx_gate("nandflash_wclk",     "nand_wclk_mux",	CLK_EN1, 1);
+	clk[ZX296702_LSP0_APB_PCLK] =
+		zx_gate("lsp0_apb_pclk",	"main_pclk",	CLK_EN1, 2);
+	clk[ZX296702_LSP0_AHB_HCLK] =
+		zx_gate("lsp0_ahb_hclk",	"main_hclk",	CLK_EN1, 3);
+	clk[ZX296702_LSP0_26M_WCLK] =
+		zx_gate("lsp0_26M_wclk",   "lsp_26_wclk_mux",	CLK_EN1, 4);
+	clk[ZX296702_LSP0_104M_WCLK] =
+		zx_gate("lsp0_104M_wclk",	"pll_lsp_104M",	CLK_EN1, 5);
+	clk[ZX296702_LSP0_16M384_WCLK] =
+		zx_gate("lsp0_16M384_wclk",	"clk_16M384",	CLK_EN1, 6);
+	clk[ZX296702_LSP1_APB_PCLK] =
+		zx_gate("lsp1_apb_pclk",	"main_pclk",	CLK_EN1, 7);
+	/* FIXME: wclk enable bit is bit8. We hack it as reserved 31 for
+	 * UART does not work after parent clk is disabled/enabled */
+	clk[ZX296702_LSP1_26M_WCLK] =
+		zx_gate("lsp1_26M_wclk",     "lsp_26_wclk_mux",	CLK_EN1, 31);
+	clk[ZX296702_LSP1_104M_WCLK] =
+		zx_gate("lsp1_104M_wclk",    "pll_lsp_104M",	CLK_EN1, 9);
+	clk[ZX296702_LSP1_32K_CLK] =
+		zx_gate("lsp1_32K_clk",	"clk_32K768",		CLK_EN1, 10);
+	clk[ZX296702_AON_HCLK] =
+		zx_gate("aon_hclk",		"main_hclk",	CLK_EN1, 11);
+	clk[ZX296702_SYS_CTRL_PCLK] =
+		zx_gate("sys_ctrl_pclk",	"main_pclk",	CLK_EN1, 12);
+	clk[ZX296702_DMA_PCLK] =
+		zx_gate("dma_pclk",		"main_pclk",	CLK_EN1, 13);
+	clk[ZX296702_DMA_ACLK] =
+		zx_gate("dma_aclk",		"matrix_aclk",	CLK_EN1, 14);
+	clk[ZX296702_SEC_HCLK] =
+		zx_gate("sec_hclk",		"main_hclk",	CLK_EN1, 15);
+	clk[ZX296702_AES_WCLK] =
+		zx_gate("aes_wclk",		"sec_wclk_div",	CLK_EN1, 16);
+	clk[ZX296702_DES_WCLK] =
+		zx_gate("des_wclk",		"sec_wclk_div",	CLK_EN1, 17);
+	clk[ZX296702_IRAM_ACLK] =
+		zx_gate("iram_aclk",		"matrix_aclk",	CLK_EN1, 18);
+	clk[ZX296702_IROM_ACLK] =
+		zx_gate("irom_aclk",		"matrix_aclk",	CLK_EN1, 19);
+	clk[ZX296702_BOOT_CTRL_HCLK] =
+		zx_gate("boot_ctrl_hclk",	"main_hclk",	CLK_EN1, 20);
+	clk[ZX296702_EFUSE_CLK_30] =
+		zx_gate("efuse_clk_30",	"osc",			CLK_EN1, 21);
+
+	/* TODO: add VOU Local clocks */
+	clk[ZX296702_VOU_MAIN_CHANNEL_DIV] =
+		zx_div("vou_main_channel_div", "vou_main_channel_wclk",
+				VOU_LOCAL_DIV2_SET, 1, 1);
+	clk[ZX296702_VOU_AUX_CHANNEL_DIV] =
+		zx_div("vou_aux_channel_div", "vou_aux_channel_wclk",
+				VOU_LOCAL_DIV2_SET, 0, 1);
+	clk[ZX296702_VOU_TV_ENC_HD_DIV] =
+		zx_div("vou_tv_enc_hd_div", "vou_tv_enc_hd_mux",
+				VOU_LOCAL_DIV2_SET, 3, 1);
+	clk[ZX296702_VOU_TV_ENC_SD_DIV] =
+		zx_div("vou_tv_enc_sd_div", "vou_tv_enc_sd_mux",
+				VOU_LOCAL_DIV2_SET, 2, 1);
+	clk[ZX296702_VL0_MUX] =
+		zx_mux("vl0_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
+				VOU_LOCAL_CLKSEL, 8, 1);
+	clk[ZX296702_VL1_MUX] =
+		zx_mux("vl1_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
+				VOU_LOCAL_CLKSEL, 9, 1);
+	clk[ZX296702_VL2_MUX] =
+		zx_mux("vl2_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
+				VOU_LOCAL_CLKSEL, 10, 1);
+	clk[ZX296702_GL0_MUX] =
+		zx_mux("gl0_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
+				VOU_LOCAL_CLKSEL, 5, 1);
+	clk[ZX296702_GL1_MUX] =
+		zx_mux("gl1_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
+				VOU_LOCAL_CLKSEL, 6, 1);
+	clk[ZX296702_GL2_MUX] =
+		zx_mux("gl2_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
+				VOU_LOCAL_CLKSEL, 7, 1);
+	clk[ZX296702_WB_MUX] =
+		zx_mux("wb_mux",  vl0_sel, ARRAY_SIZE(vl0_sel),
+				VOU_LOCAL_CLKSEL, 11, 1);
+	clk[ZX296702_HDMI_MUX] =
+		zx_mux("hdmi_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel),
+				VOU_LOCAL_CLKSEL, 4, 1);
+	clk[ZX296702_VOU_TV_ENC_HD_MUX] =
+		zx_mux("vou_tv_enc_hd_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel),
+				VOU_LOCAL_CLKSEL, 3, 1);
+	clk[ZX296702_VOU_TV_ENC_SD_MUX] =
+		zx_mux("vou_tv_enc_sd_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel),
+				VOU_LOCAL_CLKSEL, 2, 1);
+	clk[ZX296702_VL0_CLK] =
+		zx_gate("vl0_clk", "vl0_mux", VOU_LOCAL_CLKEN, 8);
+	clk[ZX296702_VL1_CLK] =
+		zx_gate("vl1_clk", "vl1_mux", VOU_LOCAL_CLKEN, 9);
+	clk[ZX296702_VL2_CLK] =
+		zx_gate("vl2_clk", "vl2_mux", VOU_LOCAL_CLKEN, 10);
+	clk[ZX296702_GL0_CLK] =
+		zx_gate("gl0_clk", "gl0_mux", VOU_LOCAL_CLKEN, 5);
+	clk[ZX296702_GL1_CLK] =
+		zx_gate("gl1_clk", "gl1_mux", VOU_LOCAL_CLKEN, 6);
+	clk[ZX296702_GL2_CLK] =
+		zx_gate("gl2_clk", "gl2_mux", VOU_LOCAL_CLKEN, 7);
+	clk[ZX296702_WB_CLK] =
+		zx_gate("wb_clk", "wb_mux", VOU_LOCAL_CLKEN, 11);
+	clk[ZX296702_CL_CLK] =
+		zx_gate("cl_clk", "vou_main_channel_div", VOU_LOCAL_CLKEN, 12);
+	clk[ZX296702_MAIN_MIX_CLK] =
+		zx_gate("main_mix_clk", "vou_main_channel_div",
+				VOU_LOCAL_CLKEN, 4);
+	clk[ZX296702_AUX_MIX_CLK] =
+		zx_gate("aux_mix_clk", "vou_aux_channel_div",
+				VOU_LOCAL_CLKEN, 3);
+	clk[ZX296702_HDMI_CLK] =
+		zx_gate("hdmi_clk", "hdmi_mux", VOU_LOCAL_CLKEN, 2);
+	clk[ZX296702_VOU_TV_ENC_HD_DAC_CLK] =
+		zx_gate("vou_tv_enc_hd_dac_clk", "vou_tv_enc_hd_div",
+				VOU_LOCAL_CLKEN, 1);
+	clk[ZX296702_VOU_TV_ENC_SD_DAC_CLK] =
+		zx_gate("vou_tv_enc_sd_dac_clk", "vou_tv_enc_sd_div",
+				VOU_LOCAL_CLKEN, 0);
+
+	/* CA9 PERIPHCLK = a9_wclk / 2 */
+	clk[ZX296702_A9_PERIPHCLK] =
+		clk_register_fixed_factor(NULL, "a9_periphclk", "a9_wclk",
+				0, 1, 2);
+
+	for (i = 0; i < ARRAY_SIZE(topclk); i++) {
+		if (IS_ERR(clk[i])) {
+			pr_err("zx296702 clk %d: register failed with %ld\n",
+				i, PTR_ERR(clk[i]));
+			return;
+		}
+	}
+
+	topclk_data.clks = topclk;
+	topclk_data.clk_num = ARRAY_SIZE(topclk);
+	of_clk_add_provider(np, of_clk_src_onecell_get, &topclk_data);
+}
+CLK_OF_DECLARE(zx296702_top_clk, "zte,zx296702-topcrm-clk",
+		zx296702_top_clocks_init);
+
+static void __init zx296702_lsp0_clocks_init(struct device_node *np)
+{
+	struct clk **clk = lsp0clk;
+	int i;
+
+	lsp0crpm_base = of_iomap(np, 0);
+	WARN_ON(!lsp0crpm_base);
+
+	/* SDMMC1 */
+	clk[ZX296702_SDMMC1_WCLK_MUX] =
+		zx_mux("sdmmc1_wclk_mux", sdmmc1_wclk_sel,
+				ARRAY_SIZE(sdmmc1_wclk_sel), CLK_SDMMC1, 4, 1);
+	clk[ZX296702_SDMMC1_WCLK_DIV] =
+		zx_div("sdmmc1_wclk_div", "sdmmc1_wclk_mux", CLK_SDMMC1, 12, 4);
+	clk[ZX296702_SDMMC1_WCLK] =
+		zx_gate("sdmmc1_wclk", "sdmmc1_wclk_div", CLK_SDMMC1, 1);
+	clk[ZX296702_SDMMC1_PCLK] =
+		zx_gate("sdmmc1_pclk", "lsp1_apb_pclk", CLK_SDMMC1, 0);
+
+	for (i = 0; i < ARRAY_SIZE(lsp0clk); i++) {
+		if (IS_ERR(clk[i])) {
+			pr_err("zx296702 clk %d: register failed with %ld\n",
+				i, PTR_ERR(clk[i]));
+			return;
+		}
+	}
+
+	lsp0clk_data.clks = lsp0clk;
+	lsp0clk_data.clk_num = ARRAY_SIZE(lsp0clk);
+	of_clk_add_provider(np, of_clk_src_onecell_get, &lsp0clk_data);
+}
+CLK_OF_DECLARE(zx296702_lsp0_clk, "zte,zx296702-lsp0crpm-clk",
+		zx296702_lsp0_clocks_init);
+
+static void __init zx296702_lsp1_clocks_init(struct device_node *np)
+{
+	struct clk **clk = lsp1clk;
+	int i;
+
+	lsp1crpm_base = of_iomap(np, 0);
+	WARN_ON(!lsp1crpm_base);
+
+	/* UART0 */
+	clk[ZX296702_UART0_WCLK_MUX] =
+		zx_mux("uart0_wclk_mux", uart_wclk_sel,
+				ARRAY_SIZE(uart_wclk_sel), CLK_UART0, 4, 1);
+	/* FIXME: uart wclk enable bit is bit1 in. We hack it as reserved 31 for
+	 * UART does not work after parent clk is disabled/enabled */
+	clk[ZX296702_UART0_WCLK] =
+		zx_gate("uart0_wclk", "uart0_wclk_mux", CLK_UART0, 31);
+	clk[ZX296702_UART0_PCLK] =
+		zx_gate("uart0_pclk", "lsp1_apb_pclk", CLK_UART0, 0);
+
+	/* UART1 */
+	clk[ZX296702_UART1_WCLK_MUX] =
+		zx_mux("uart1_wclk_mux", uart_wclk_sel,
+				ARRAY_SIZE(uart_wclk_sel), CLK_UART1, 4, 1);
+	clk[ZX296702_UART1_WCLK] =
+		zx_gate("uart1_wclk", "uart1_wclk_mux", CLK_UART1, 1);
+	clk[ZX296702_UART1_PCLK] =
+		zx_gate("uart1_pclk", "lsp1_apb_pclk", CLK_UART1, 0);
+
+	/* SDMMC0 */
+	clk[ZX296702_SDMMC0_WCLK_MUX] =
+		zx_mux("sdmmc0_wclk_mux", sdmmc0_wclk_sel,
+				ARRAY_SIZE(sdmmc0_wclk_sel), CLK_SDMMC0, 4, 1);
+	clk[ZX296702_SDMMC0_WCLK_DIV] =
+		zx_div("sdmmc0_wclk_div", "sdmmc0_wclk_mux", CLK_SDMMC0, 12, 4);
+	clk[ZX296702_SDMMC0_WCLK] =
+		zx_gate("sdmmc0_wclk", "sdmmc0_wclk_div", CLK_SDMMC0, 1);
+	clk[ZX296702_SDMMC0_PCLK] =
+		zx_gate("sdmmc0_pclk", "lsp1_apb_pclk", CLK_SDMMC0, 0);
+
+	for (i = 0; i < ARRAY_SIZE(lsp1clk); i++) {
+		if (IS_ERR(clk[i])) {
+			pr_err("zx296702 clk %d: register failed with %ld\n",
+				i, PTR_ERR(clk[i]));
+			return;
+		}
+	}
+
+	lsp1clk_data.clks = lsp1clk;
+	lsp1clk_data.clk_num = ARRAY_SIZE(lsp1clk);
+	of_clk_add_provider(np, of_clk_src_onecell_get, &lsp1clk_data);
+}
+CLK_OF_DECLARE(zx296702_lsp1_clk, "zte,zx296702-lsp1crpm-clk",
+		zx296702_lsp1_clocks_init);
diff --git a/drivers/clk/zte/clk.h b/drivers/clk/zte/clk.h
new file mode 100644
index 0000000..0914a82
--- /dev/null
+++ b/drivers/clk/zte/clk.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2015 Linaro Ltd.
+ * Copyright (C) 2014 ZTE Corporation.
+ *
+ * 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.
+ */
+
+#ifndef __ZTE_CLK_H
+#define __ZTE_CLK_H
+#include <linux/clk-provider.h>
+#include <linux/spinlock.h>
+
+struct zx_pll_config {
+	unsigned long rate;
+	u32 cfg0;
+	u32 cfg1;
+};
+
+struct clk_zx_pll {
+	struct clk_hw hw;
+	void __iomem *reg_base;
+	const struct zx_pll_config *lookup_table; /* order by rate asc */
+	int count;
+	spinlock_t *lock;
+};
+
+struct clk *clk_register_zx_pll(const char *name, const char *parent_name,
+	unsigned long flags, void __iomem *reg_base,
+	const struct zx_pll_config *lookup_table, int count, spinlock_t *lock);
+#endif
diff --git a/include/dt-bindings/clock/zx296702-clock.h b/include/dt-bindings/clock/zx296702-clock.h
new file mode 100644
index 0000000..e683dbb
--- /dev/null
+++ b/include/dt-bindings/clock/zx296702-clock.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2014 Linaro Ltd.
+ * Copyright (C) 2014 ZTE Corporation.
+ *
+ * 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.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_ZX296702_H
+#define __DT_BINDINGS_CLOCK_ZX296702_H
+
+#define ZX296702_OSC				0
+#define ZX296702_PLL_A9				1
+#define ZX296702_PLL_A9_350M			2
+#define ZX296702_PLL_MAC_1000M			3
+#define ZX296702_PLL_MAC_333M			4
+#define ZX296702_PLL_MM0_1188M			5
+#define ZX296702_PLL_MM0_396M			6
+#define ZX296702_PLL_MM0_198M			7
+#define ZX296702_PLL_MM1_108M			8
+#define ZX296702_PLL_MM1_72M			9
+#define ZX296702_PLL_MM1_54M			10
+#define ZX296702_PLL_LSP_104M			11
+#define ZX296702_PLL_LSP_26M			12
+#define ZX296702_PLL_AUDIO_294M912		13
+#define ZX296702_PLL_DDR_266M			14
+#define ZX296702_CLK_148M5			15
+#define ZX296702_MATRIX_ACLK			16
+#define ZX296702_MAIN_HCLK			17
+#define ZX296702_MAIN_PCLK			18
+#define ZX296702_CLK_500			19
+#define ZX296702_CLK_250			20
+#define ZX296702_CLK_125			21
+#define ZX296702_CLK_74M25			22
+#define ZX296702_A9_WCLK			23
+#define ZX296702_A9_AS1_ACLK_MUX		24
+#define ZX296702_A9_TRACE_CLKIN_MUX		25
+#define ZX296702_A9_AS1_ACLK_DIV		26
+#define ZX296702_CLK_2				27
+#define ZX296702_CLK_27				28
+#define ZX296702_DECPPU_ACLK_MUX		29
+#define ZX296702_PPU_ACLK_MUX			30
+#define ZX296702_MALI400_ACLK_MUX		31
+#define ZX296702_VOU_ACLK_MUX			32
+#define ZX296702_VOU_MAIN_WCLK_MUX		33
+#define ZX296702_VOU_AUX_WCLK_MUX		34
+#define ZX296702_VOU_SCALER_WCLK_MUX		35
+#define ZX296702_R2D_ACLK_MUX			36
+#define ZX296702_R2D_WCLK_MUX			37
+#define ZX296702_CLK_50				38
+#define ZX296702_CLK_25				39
+#define ZX296702_CLK_12				40
+#define ZX296702_CLK_16M384			41
+#define ZX296702_CLK_32K768			42
+#define ZX296702_SEC_WCLK_DIV			43
+#define ZX296702_DDR_WCLK_MUX			44
+#define ZX296702_NAND_WCLK_MUX			45
+#define ZX296702_LSP_26_WCLK_MUX		46
+#define ZX296702_A9_AS0_ACLK			47
+#define ZX296702_A9_AS1_ACLK			48
+#define ZX296702_A9_TRACE_CLKIN			49
+#define ZX296702_DECPPU_AXI_M_ACLK		50
+#define ZX296702_DECPPU_AHB_S_HCLK		51
+#define ZX296702_PPU_AXI_M_ACLK			52
+#define ZX296702_PPU_AHB_S_HCLK			53
+#define ZX296702_VOU_AXI_M_ACLK			54
+#define ZX296702_VOU_APB_PCLK			55
+#define ZX296702_VOU_MAIN_CHANNEL_WCLK		56
+#define ZX296702_VOU_AUX_CHANNEL_WCLK		57
+#define ZX296702_VOU_HDMI_OSCLK_CEC		58
+#define ZX296702_VOU_SCALER_WCLK		59
+#define ZX296702_MALI400_AXI_M_ACLK		60
+#define ZX296702_MALI400_APB_PCLK		61
+#define ZX296702_R2D_WCLK			62
+#define ZX296702_R2D_AXI_M_ACLK			63
+#define ZX296702_R2D_AHB_HCLK			64
+#define ZX296702_DDR3_AXI_S0_ACLK		65
+#define ZX296702_DDR3_APB_PCLK			66
+#define ZX296702_DDR3_WCLK			67
+#define ZX296702_USB20_0_AHB_HCLK		68
+#define ZX296702_USB20_0_EXTREFCLK		69
+#define ZX296702_USB20_1_AHB_HCLK		70
+#define ZX296702_USB20_1_EXTREFCLK		71
+#define ZX296702_USB20_2_AHB_HCLK		72
+#define ZX296702_USB20_2_EXTREFCLK		73
+#define ZX296702_GMAC_AXI_M_ACLK		74
+#define ZX296702_GMAC_APB_PCLK			75
+#define ZX296702_GMAC_125_CLKIN			76
+#define ZX296702_GMAC_RMII_CLKIN		77
+#define ZX296702_GMAC_25M_CLK			78
+#define ZX296702_NANDFLASH_AHB_HCLK		79
+#define ZX296702_NANDFLASH_WCLK			80
+#define ZX296702_LSP0_APB_PCLK			81
+#define ZX296702_LSP0_AHB_HCLK			82
+#define ZX296702_LSP0_26M_WCLK			83
+#define ZX296702_LSP0_104M_WCLK			84
+#define ZX296702_LSP0_16M384_WCLK		85
+#define ZX296702_LSP1_APB_PCLK			86
+#define ZX296702_LSP1_26M_WCLK			87
+#define ZX296702_LSP1_104M_WCLK			88
+#define ZX296702_LSP1_32K_CLK			89
+#define ZX296702_AON_HCLK			90
+#define ZX296702_SYS_CTRL_PCLK			91
+#define ZX296702_DMA_PCLK			92
+#define ZX296702_DMA_ACLK			93
+#define ZX296702_SEC_HCLK			94
+#define ZX296702_AES_WCLK			95
+#define ZX296702_DES_WCLK			96
+#define ZX296702_IRAM_ACLK			97
+#define ZX296702_IROM_ACLK			98
+#define ZX296702_BOOT_CTRL_HCLK			99
+#define ZX296702_EFUSE_CLK_30			100
+#define ZX296702_VOU_MAIN_CHANNEL_DIV		101
+#define ZX296702_VOU_AUX_CHANNEL_DIV		102
+#define ZX296702_VOU_TV_ENC_HD_DIV		103
+#define ZX296702_VOU_TV_ENC_SD_DIV		104
+#define ZX296702_VL0_MUX			105
+#define ZX296702_VL1_MUX			106
+#define ZX296702_VL2_MUX			107
+#define ZX296702_GL0_MUX			108
+#define ZX296702_GL1_MUX			109
+#define ZX296702_GL2_MUX			110
+#define ZX296702_WB_MUX				111
+#define ZX296702_HDMI_MUX			112
+#define ZX296702_VOU_TV_ENC_HD_MUX		113
+#define ZX296702_VOU_TV_ENC_SD_MUX		114
+#define ZX296702_VL0_CLK			115
+#define ZX296702_VL1_CLK			116
+#define ZX296702_VL2_CLK			117
+#define ZX296702_GL0_CLK			118
+#define ZX296702_GL1_CLK			119
+#define ZX296702_GL2_CLK			120
+#define ZX296702_WB_CLK				121
+#define ZX296702_CL_CLK				122
+#define ZX296702_MAIN_MIX_CLK			123
+#define ZX296702_AUX_MIX_CLK			124
+#define ZX296702_HDMI_CLK			125
+#define ZX296702_VOU_TV_ENC_HD_DAC_CLK		126
+#define ZX296702_VOU_TV_ENC_SD_DAC_CLK		127
+#define ZX296702_A9_PERIPHCLK			128
+#define ZX296702_TOPCLK_END			129
+
+#define ZX296702_SDMMC1_WCLK_MUX		0
+#define ZX296702_SDMMC1_WCLK_DIV		1
+#define ZX296702_SDMMC1_WCLK			2
+#define ZX296702_SDMMC1_PCLK			3
+#define ZX296702_SPDIF0_WCLK_MUX		4
+#define ZX296702_SPDIF0_WCLK			5
+#define ZX296702_SPDIF0_PCLK			6
+#define ZX296702_SPDIF0_DIV			7
+#define ZX296702_I2S0_WCLK_MUX			8
+#define ZX296702_I2S0_WCLK			9
+#define ZX296702_I2S0_PCLK			10
+#define ZX296702_I2S0_DIV			11
+#define ZX296702_LSP0CLK_END			12
+
+#define ZX296702_UART0_WCLK_MUX			0
+#define ZX296702_UART0_WCLK			1
+#define ZX296702_UART0_PCLK			2
+#define ZX296702_UART1_WCLK_MUX			3
+#define ZX296702_UART1_WCLK			4
+#define ZX296702_UART1_PCLK			5
+#define ZX296702_SDMMC0_WCLK_MUX		6
+#define ZX296702_SDMMC0_WCLK_DIV		7
+#define ZX296702_SDMMC0_WCLK			8
+#define ZX296702_SDMMC0_PCLK			9
+#define ZX296702_LSP1CLK_END			10
+
+#endif /* __DT_BINDINGS_CLOCK_ZX296702_H */