Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

7 files changed, 1371 insertions, 0 deletions

diff --git a/kernel/drivers/clk/hisilicon/Makefile b/kernel/drivers/clk/hisilicon/Makefile
new file mode 100644
index 000000000..038c02f4d
--- /dev/null
+++ b/kernel/drivers/clk/hisilicon/Makefile
@@ -0,0 +1,9 @@
+#
+# Hisilicon Clock specific Makefile
+#
+
+obj-y	+= clk.o clkgate-separated.o
+
+obj-$(CONFIG_ARCH_HI3xxx)	+= clk-hi3620.o
+obj-$(CONFIG_ARCH_HIP04)	+= clk-hip04.o
+obj-$(CONFIG_ARCH_HIX5HD2)	+= clk-hix5hd2.o
diff --git a/kernel/drivers/clk/hisilicon/clk-hi3620.c b/kernel/drivers/clk/hisilicon/clk-hi3620.c
new file mode 100644
index 000000000..472dd2cb1
--- /dev/null
+++ b/kernel/drivers/clk/hisilicon/clk-hi3620.c
@@ -0,0 +1,508 @@
+/*
+ * Hisilicon Hi3620 clock driver
+ *
+ * Copyright (c) 2012-2013 Hisilicon Limited.
+ * Copyright (c) 2012-2013 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *	   Xin Li <li.xin@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+
+#include <dt-bindings/clock/hi3620-clock.h>
+
+#include "clk.h"
+
+/* clock parent list */
+static const char *timer0_mux_p[] __initdata = { "osc32k", "timerclk01", };
+static const char *timer1_mux_p[] __initdata = { "osc32k", "timerclk01", };
+static const char *timer2_mux_p[] __initdata = { "osc32k", "timerclk23", };
+static const char *timer3_mux_p[] __initdata = { "osc32k", "timerclk23", };
+static const char *timer4_mux_p[] __initdata = { "osc32k", "timerclk45", };
+static const char *timer5_mux_p[] __initdata = { "osc32k", "timerclk45", };
+static const char *timer6_mux_p[] __initdata = { "osc32k", "timerclk67", };
+static const char *timer7_mux_p[] __initdata = { "osc32k", "timerclk67", };
+static const char *timer8_mux_p[] __initdata = { "osc32k", "timerclk89", };
+static const char *timer9_mux_p[] __initdata = { "osc32k", "timerclk89", };
+static const char *uart0_mux_p[] __initdata = { "osc26m", "pclk", };
+static const char *uart1_mux_p[] __initdata = { "osc26m", "pclk", };
+static const char *uart2_mux_p[] __initdata = { "osc26m", "pclk", };
+static const char *uart3_mux_p[] __initdata = { "osc26m", "pclk", };
+static const char *uart4_mux_p[] __initdata = { "osc26m", "pclk", };
+static const char *spi0_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", };
+static const char *spi1_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", };
+static const char *spi2_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", };
+/* share axi parent */
+static const char *saxi_mux_p[] __initdata = { "armpll3", "armpll2", };
+static const char *pwm0_mux_p[] __initdata = { "osc32k", "osc26m", };
+static const char *pwm1_mux_p[] __initdata = { "osc32k", "osc26m", };
+static const char *sd_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *mmc1_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *mmc1_mux2_p[] __initdata = { "osc26m", "mmc1_div", };
+static const char *g2d_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *venc_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *vdec_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *vpp_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *edc0_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *ldi0_mux_p[] __initdata = { "armpll2", "armpll4",
+					     "armpll3", "armpll5", };
+static const char *edc1_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *ldi1_mux_p[] __initdata = { "armpll2", "armpll4",
+					     "armpll3", "armpll5", };
+static const char *rclk_hsic_p[] __initdata = { "armpll3", "armpll2", };
+static const char *mmc2_mux_p[] __initdata = { "armpll2", "armpll3", };
+static const char *mmc3_mux_p[] __initdata = { "armpll2", "armpll3", };
+
+
+/* fixed rate clocks */
+static struct hisi_fixed_rate_clock hi3620_fixed_rate_clks[] __initdata = {
+	{ HI3620_OSC32K,   "osc32k",   NULL, CLK_IS_ROOT, 32768, },
+	{ HI3620_OSC26M,   "osc26m",   NULL, CLK_IS_ROOT, 26000000, },
+	{ HI3620_PCLK,     "pclk",     NULL, CLK_IS_ROOT, 26000000, },
+	{ HI3620_PLL_ARM0, "armpll0",  NULL, CLK_IS_ROOT, 1600000000, },
+	{ HI3620_PLL_ARM1, "armpll1",  NULL, CLK_IS_ROOT, 1600000000, },
+	{ HI3620_PLL_PERI, "armpll2",  NULL, CLK_IS_ROOT, 1440000000, },
+	{ HI3620_PLL_USB,  "armpll3",  NULL, CLK_IS_ROOT, 1440000000, },
+	{ HI3620_PLL_HDMI, "armpll4",  NULL, CLK_IS_ROOT, 1188000000, },
+	{ HI3620_PLL_GPU,  "armpll5",  NULL, CLK_IS_ROOT, 1300000000, },
+};
+
+/* fixed factor clocks */
+static struct hisi_fixed_factor_clock hi3620_fixed_factor_clks[] __initdata = {
+	{ HI3620_RCLK_TCXO,   "rclk_tcxo",   "osc26m",   1, 4,  0, },
+	{ HI3620_RCLK_CFGAXI, "rclk_cfgaxi", "armpll2",  1, 30, 0, },
+	{ HI3620_RCLK_PICO,   "rclk_pico",   "hsic_div", 1, 40, 0, },
+};
+
+static struct hisi_mux_clock hi3620_mux_clks[] __initdata = {
+	{ HI3620_TIMER0_MUX, "timer0_mux", timer0_mux_p, ARRAY_SIZE(timer0_mux_p), CLK_SET_RATE_PARENT, 0,     15, 2, 0,                   },
+	{ HI3620_TIMER1_MUX, "timer1_mux", timer1_mux_p, ARRAY_SIZE(timer1_mux_p), CLK_SET_RATE_PARENT, 0,     17, 2, 0,                   },
+	{ HI3620_TIMER2_MUX, "timer2_mux", timer2_mux_p, ARRAY_SIZE(timer2_mux_p), CLK_SET_RATE_PARENT, 0,     19, 2, 0,                   },
+	{ HI3620_TIMER3_MUX, "timer3_mux", timer3_mux_p, ARRAY_SIZE(timer3_mux_p), CLK_SET_RATE_PARENT, 0,     21, 2, 0,                   },
+	{ HI3620_TIMER4_MUX, "timer4_mux", timer4_mux_p, ARRAY_SIZE(timer4_mux_p), CLK_SET_RATE_PARENT, 0x18,  0,  2, 0,                   },
+	{ HI3620_TIMER5_MUX, "timer5_mux", timer5_mux_p, ARRAY_SIZE(timer5_mux_p), CLK_SET_RATE_PARENT, 0x18,  2,  2, 0,                   },
+	{ HI3620_TIMER6_MUX, "timer6_mux", timer6_mux_p, ARRAY_SIZE(timer6_mux_p), CLK_SET_RATE_PARENT, 0x18,  4,  2, 0,                   },
+	{ HI3620_TIMER7_MUX, "timer7_mux", timer7_mux_p, ARRAY_SIZE(timer7_mux_p), CLK_SET_RATE_PARENT, 0x18,  6,  2, 0,                   },
+	{ HI3620_TIMER8_MUX, "timer8_mux", timer8_mux_p, ARRAY_SIZE(timer8_mux_p), CLK_SET_RATE_PARENT, 0x18,  8,  2, 0,                   },
+	{ HI3620_TIMER9_MUX, "timer9_mux", timer9_mux_p, ARRAY_SIZE(timer9_mux_p), CLK_SET_RATE_PARENT, 0x18,  10, 2, 0,                   },
+	{ HI3620_UART0_MUX,  "uart0_mux",  uart0_mux_p,  ARRAY_SIZE(uart0_mux_p),  CLK_SET_RATE_PARENT, 0x100, 7,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_UART1_MUX,  "uart1_mux",  uart1_mux_p,  ARRAY_SIZE(uart1_mux_p),  CLK_SET_RATE_PARENT, 0x100, 8,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_UART2_MUX,  "uart2_mux",  uart2_mux_p,  ARRAY_SIZE(uart2_mux_p),  CLK_SET_RATE_PARENT, 0x100, 9,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_UART3_MUX,  "uart3_mux",  uart3_mux_p,  ARRAY_SIZE(uart3_mux_p),  CLK_SET_RATE_PARENT, 0x100, 10, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_UART4_MUX,  "uart4_mux",  uart4_mux_p,  ARRAY_SIZE(uart4_mux_p),  CLK_SET_RATE_PARENT, 0x100, 11, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_SPI0_MUX,   "spi0_mux",   spi0_mux_p,   ARRAY_SIZE(spi0_mux_p),   CLK_SET_RATE_PARENT, 0x100, 12, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_SPI1_MUX,   "spi1_mux",   spi1_mux_p,   ARRAY_SIZE(spi1_mux_p),   CLK_SET_RATE_PARENT, 0x100, 13, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_SPI2_MUX,   "spi2_mux",   spi2_mux_p,   ARRAY_SIZE(spi2_mux_p),   CLK_SET_RATE_PARENT, 0x100, 14, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_SAXI_MUX,   "saxi_mux",   saxi_mux_p,   ARRAY_SIZE(saxi_mux_p),   CLK_SET_RATE_PARENT, 0x100, 15, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_PWM0_MUX,   "pwm0_mux",   pwm0_mux_p,   ARRAY_SIZE(pwm0_mux_p),   CLK_SET_RATE_PARENT, 0x104, 10, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_PWM1_MUX,   "pwm1_mux",   pwm1_mux_p,   ARRAY_SIZE(pwm1_mux_p),   CLK_SET_RATE_PARENT, 0x104, 11, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_SD_MUX,     "sd_mux",     sd_mux_p,     ARRAY_SIZE(sd_mux_p),     CLK_SET_RATE_PARENT, 0x108, 4,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_MMC1_MUX,   "mmc1_mux",   mmc1_mux_p,   ARRAY_SIZE(mmc1_mux_p),   CLK_SET_RATE_PARENT, 0x108, 9,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_MMC1_MUX2,  "mmc1_mux2",  mmc1_mux2_p,  ARRAY_SIZE(mmc1_mux2_p),  CLK_SET_RATE_PARENT, 0x108, 10, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_G2D_MUX,    "g2d_mux",    g2d_mux_p,    ARRAY_SIZE(g2d_mux_p),    CLK_SET_RATE_PARENT, 0x10c, 5,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_VENC_MUX,   "venc_mux",   venc_mux_p,   ARRAY_SIZE(venc_mux_p),   CLK_SET_RATE_PARENT, 0x10c, 11, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_VDEC_MUX,   "vdec_mux",   vdec_mux_p,   ARRAY_SIZE(vdec_mux_p),   CLK_SET_RATE_PARENT, 0x110, 5,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_VPP_MUX,    "vpp_mux",    vpp_mux_p,    ARRAY_SIZE(vpp_mux_p),    CLK_SET_RATE_PARENT, 0x110, 11, 1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_EDC0_MUX,   "edc0_mux",   edc0_mux_p,   ARRAY_SIZE(edc0_mux_p),   CLK_SET_RATE_PARENT, 0x114, 6,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_LDI0_MUX,   "ldi0_mux",   ldi0_mux_p,   ARRAY_SIZE(ldi0_mux_p),   CLK_SET_RATE_PARENT, 0x114, 13, 2, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_EDC1_MUX,   "edc1_mux",   edc1_mux_p,   ARRAY_SIZE(edc1_mux_p),   CLK_SET_RATE_PARENT, 0x118, 6,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_LDI1_MUX,   "ldi1_mux",   ldi1_mux_p,   ARRAY_SIZE(ldi1_mux_p),   CLK_SET_RATE_PARENT, 0x118, 14, 2, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_RCLK_HSIC,  "rclk_hsic",  rclk_hsic_p,  ARRAY_SIZE(rclk_hsic_p),  CLK_SET_RATE_PARENT, 0x130, 2,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_MMC2_MUX,   "mmc2_mux",   mmc2_mux_p,   ARRAY_SIZE(mmc2_mux_p),   CLK_SET_RATE_PARENT, 0x140, 4,  1, CLK_MUX_HIWORD_MASK, },
+	{ HI3620_MMC3_MUX,   "mmc3_mux",   mmc3_mux_p,   ARRAY_SIZE(mmc3_mux_p),   CLK_SET_RATE_PARENT, 0x140, 9,  1, CLK_MUX_HIWORD_MASK, },
+};
+
+static struct hisi_divider_clock hi3620_div_clks[] __initdata = {
+	{ HI3620_SHAREAXI_DIV, "saxi_div",   "saxi_mux",  0, 0x100, 0, 5, CLK_DIVIDER_HIWORD_MASK, NULL, },
+	{ HI3620_CFGAXI_DIV,   "cfgaxi_div", "saxi_div",  0, 0x100, 5, 2, CLK_DIVIDER_HIWORD_MASK, NULL, },
+	{ HI3620_SD_DIV,       "sd_div",     "sd_mux",	  0, 0x108, 0, 4, CLK_DIVIDER_HIWORD_MASK, NULL, },
+	{ HI3620_MMC1_DIV,     "mmc1_div",   "mmc1_mux",  0, 0x108, 5, 4, CLK_DIVIDER_HIWORD_MASK, NULL, },
+	{ HI3620_HSIC_DIV,     "hsic_div",   "rclk_hsic", 0, 0x130, 0, 2, CLK_DIVIDER_HIWORD_MASK, NULL, },
+	{ HI3620_MMC2_DIV,     "mmc2_div",   "mmc2_mux",  0, 0x140, 0, 4, CLK_DIVIDER_HIWORD_MASK, NULL, },
+	{ HI3620_MMC3_DIV,     "mmc3_div",   "mmc3_mux",  0, 0x140, 5, 4, CLK_DIVIDER_HIWORD_MASK, NULL, },
+};
+
+static struct hisi_gate_clock hi3620_seperated_gate_clks[] __initdata = {
+	{ HI3620_TIMERCLK01,   "timerclk01",   "timer_rclk01", CLK_SET_RATE_PARENT, 0x20, 0, 0, },
+	{ HI3620_TIMER_RCLK01, "timer_rclk01", "rclk_tcxo",    CLK_SET_RATE_PARENT, 0x20, 1, 0, },
+	{ HI3620_TIMERCLK23,   "timerclk23",   "timer_rclk23", CLK_SET_RATE_PARENT, 0x20, 2, 0, },
+	{ HI3620_TIMER_RCLK23, "timer_rclk23", "rclk_tcxo",    CLK_SET_RATE_PARENT, 0x20, 3, 0, },
+	{ HI3620_RTCCLK,       "rtcclk",       "pclk",         CLK_SET_RATE_PARENT, 0x20, 5, 0, },
+	{ HI3620_KPC_CLK,      "kpc_clk",      "pclk",         CLK_SET_RATE_PARENT, 0x20, 6, 0, },
+	{ HI3620_GPIOCLK0,     "gpioclk0",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 8, 0, },
+	{ HI3620_GPIOCLK1,     "gpioclk1",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 9, 0, },
+	{ HI3620_GPIOCLK2,     "gpioclk2",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 10, 0, },
+	{ HI3620_GPIOCLK3,     "gpioclk3",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 11, 0, },
+	{ HI3620_GPIOCLK4,     "gpioclk4",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 12, 0, },
+	{ HI3620_GPIOCLK5,     "gpioclk5",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 13, 0, },
+	{ HI3620_GPIOCLK6,     "gpioclk6",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 14, 0, },
+	{ HI3620_GPIOCLK7,     "gpioclk7",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 15, 0, },
+	{ HI3620_GPIOCLK8,     "gpioclk8",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 16, 0, },
+	{ HI3620_GPIOCLK9,     "gpioclk9",     "pclk",         CLK_SET_RATE_PARENT, 0x20, 17, 0, },
+	{ HI3620_GPIOCLK10,    "gpioclk10",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 18, 0, },
+	{ HI3620_GPIOCLK11,    "gpioclk11",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 19, 0, },
+	{ HI3620_GPIOCLK12,    "gpioclk12",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 20, 0, },
+	{ HI3620_GPIOCLK13,    "gpioclk13",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 21, 0, },
+	{ HI3620_GPIOCLK14,    "gpioclk14",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 22, 0, },
+	{ HI3620_GPIOCLK15,    "gpioclk15",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 23, 0, },
+	{ HI3620_GPIOCLK16,    "gpioclk16",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 24, 0, },
+	{ HI3620_GPIOCLK17,    "gpioclk17",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 25, 0, },
+	{ HI3620_GPIOCLK18,    "gpioclk18",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 26, 0, },
+	{ HI3620_GPIOCLK19,    "gpioclk19",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 27, 0, },
+	{ HI3620_GPIOCLK20,    "gpioclk20",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 28, 0, },
+	{ HI3620_GPIOCLK21,    "gpioclk21",    "pclk",         CLK_SET_RATE_PARENT, 0x20, 29, 0, },
+	{ HI3620_DPHY0_CLK,    "dphy0_clk",    "osc26m",       CLK_SET_RATE_PARENT, 0x30, 15, 0, },
+	{ HI3620_DPHY1_CLK,    "dphy1_clk",    "osc26m",       CLK_SET_RATE_PARENT, 0x30, 16, 0, },
+	{ HI3620_DPHY2_CLK,    "dphy2_clk",    "osc26m",       CLK_SET_RATE_PARENT, 0x30, 17, 0, },
+	{ HI3620_USBPHY_CLK,   "usbphy_clk",   "rclk_pico",    CLK_SET_RATE_PARENT, 0x30, 24, 0, },
+	{ HI3620_ACP_CLK,      "acp_clk",      "rclk_cfgaxi",  CLK_SET_RATE_PARENT, 0x30, 28, 0, },
+	{ HI3620_TIMERCLK45,   "timerclk45",   "rclk_tcxo",    CLK_SET_RATE_PARENT, 0x40, 3, 0, },
+	{ HI3620_TIMERCLK67,   "timerclk67",   "rclk_tcxo",    CLK_SET_RATE_PARENT, 0x40, 4, 0, },
+	{ HI3620_TIMERCLK89,   "timerclk89",   "rclk_tcxo",    CLK_SET_RATE_PARENT, 0x40, 5, 0, },
+	{ HI3620_PWMCLK0,      "pwmclk0",      "pwm0_mux",     CLK_SET_RATE_PARENT, 0x40, 7, 0, },
+	{ HI3620_PWMCLK1,      "pwmclk1",      "pwm1_mux",     CLK_SET_RATE_PARENT, 0x40, 8, 0, },
+	{ HI3620_UARTCLK0,     "uartclk0",     "uart0_mux",    CLK_SET_RATE_PARENT, 0x40, 16, 0, },
+	{ HI3620_UARTCLK1,     "uartclk1",     "uart1_mux",    CLK_SET_RATE_PARENT, 0x40, 17, 0, },
+	{ HI3620_UARTCLK2,     "uartclk2",     "uart2_mux",    CLK_SET_RATE_PARENT, 0x40, 18, 0, },
+	{ HI3620_UARTCLK3,     "uartclk3",     "uart3_mux",    CLK_SET_RATE_PARENT, 0x40, 19, 0, },
+	{ HI3620_UARTCLK4,     "uartclk4",     "uart4_mux",    CLK_SET_RATE_PARENT, 0x40, 20, 0, },
+	{ HI3620_SPICLK0,      "spiclk0",      "spi0_mux",     CLK_SET_RATE_PARENT, 0x40, 21, 0, },
+	{ HI3620_SPICLK1,      "spiclk1",      "spi1_mux",     CLK_SET_RATE_PARENT, 0x40, 22, 0, },
+	{ HI3620_SPICLK2,      "spiclk2",      "spi2_mux",     CLK_SET_RATE_PARENT, 0x40, 23, 0, },
+	{ HI3620_I2CCLK0,      "i2cclk0",      "pclk",         CLK_SET_RATE_PARENT, 0x40, 24, 0, },
+	{ HI3620_I2CCLK1,      "i2cclk1",      "pclk",         CLK_SET_RATE_PARENT, 0x40, 25, 0, },
+	{ HI3620_SCI_CLK,      "sci_clk",      "osc26m",       CLK_SET_RATE_PARENT, 0x40, 26, 0, },
+	{ HI3620_I2CCLK2,      "i2cclk2",      "pclk",         CLK_SET_RATE_PARENT, 0x40, 28, 0, },
+	{ HI3620_I2CCLK3,      "i2cclk3",      "pclk",         CLK_SET_RATE_PARENT, 0x40, 29, 0, },
+	{ HI3620_DDRC_PER_CLK, "ddrc_per_clk", "rclk_cfgaxi",  CLK_SET_RATE_PARENT, 0x50, 9, 0, },
+	{ HI3620_DMAC_CLK,     "dmac_clk",     "rclk_cfgaxi",  CLK_SET_RATE_PARENT, 0x50, 10, 0, },
+	{ HI3620_USB2DVC_CLK,  "usb2dvc_clk",  "rclk_cfgaxi",  CLK_SET_RATE_PARENT, 0x50, 17, 0, },
+	{ HI3620_SD_CLK,       "sd_clk",       "sd_div",       CLK_SET_RATE_PARENT, 0x50, 20, 0, },
+	{ HI3620_MMC_CLK1,     "mmc_clk1",     "mmc1_mux2",    CLK_SET_RATE_PARENT, 0x50, 21, 0, },
+	{ HI3620_MMC_CLK2,     "mmc_clk2",     "mmc2_div",     CLK_SET_RATE_PARENT, 0x50, 22, 0, },
+	{ HI3620_MMC_CLK3,     "mmc_clk3",     "mmc3_div",     CLK_SET_RATE_PARENT, 0x50, 23, 0, },
+	{ HI3620_MCU_CLK,      "mcu_clk",      "acp_clk",      CLK_SET_RATE_PARENT, 0x50, 24, 0, },
+};
+
+static void __init hi3620_clk_init(struct device_node *np)
+{
+	struct hisi_clock_data *clk_data;
+
+	clk_data = hisi_clk_init(np, HI3620_NR_CLKS);
+	if (!clk_data)
+		return;
+
+	hisi_clk_register_fixed_rate(hi3620_fixed_rate_clks,
+				     ARRAY_SIZE(hi3620_fixed_rate_clks),
+				     clk_data);
+	hisi_clk_register_fixed_factor(hi3620_fixed_factor_clks,
+				       ARRAY_SIZE(hi3620_fixed_factor_clks),
+				       clk_data);
+	hisi_clk_register_mux(hi3620_mux_clks, ARRAY_SIZE(hi3620_mux_clks),
+			      clk_data);
+	hisi_clk_register_divider(hi3620_div_clks, ARRAY_SIZE(hi3620_div_clks),
+				  clk_data);
+	hisi_clk_register_gate_sep(hi3620_seperated_gate_clks,
+				   ARRAY_SIZE(hi3620_seperated_gate_clks),
+				   clk_data);
+}
+CLK_OF_DECLARE(hi3620_clk, "hisilicon,hi3620-clock", hi3620_clk_init);
+
+struct hisi_mmc_clock {
+	unsigned int		id;
+	const char		*name;
+	const char		*parent_name;
+	unsigned long		flags;
+	u32			clken_reg;
+	u32			clken_bit;
+	u32			div_reg;
+	u32			div_off;
+	u32			div_bits;
+	u32			drv_reg;
+	u32			drv_off;
+	u32			drv_bits;
+	u32			sam_reg;
+	u32			sam_off;
+	u32			sam_bits;
+};
+
+struct clk_mmc {
+	struct clk_hw	hw;
+	u32		id;
+	void __iomem	*clken_reg;
+	u32		clken_bit;
+	void __iomem	*div_reg;
+	u32		div_off;
+	u32		div_bits;
+	void __iomem	*drv_reg;
+	u32		drv_off;
+	u32		drv_bits;
+	void __iomem	*sam_reg;
+	u32		sam_off;
+	u32		sam_bits;
+};
+
+#define to_mmc(_hw) container_of(_hw, struct clk_mmc, hw)
+
+static struct hisi_mmc_clock hi3620_mmc_clks[] __initdata = {
+	{ HI3620_SD_CIUCLK,	"sd_bclk1", "sd_clk", CLK_SET_RATE_PARENT, 0x1f8, 0, 0x1f8, 1, 3, 0x1f8, 4, 4, 0x1f8, 8, 4},
+	{ HI3620_MMC_CIUCLK1,   "mmc_bclk1", "mmc_clk1", CLK_SET_RATE_PARENT, 0x1f8, 12, 0x1f8, 13, 3, 0x1f8, 16, 4, 0x1f8, 20, 4},
+	{ HI3620_MMC_CIUCLK2,   "mmc_bclk2", "mmc_clk2", CLK_SET_RATE_PARENT, 0x1f8, 24, 0x1f8, 25, 3, 0x1f8, 28, 4, 0x1fc, 0, 4},
+	{ HI3620_MMC_CIUCLK3,   "mmc_bclk3", "mmc_clk3", CLK_SET_RATE_PARENT, 0x1fc, 4, 0x1fc, 5, 3, 0x1fc, 8, 4, 0x1fc, 12, 4},
+};
+
+static unsigned long mmc_clk_recalc_rate(struct clk_hw *hw,
+		       unsigned long parent_rate)
+{
+	switch (parent_rate) {
+	case 26000000:
+		return 13000000;
+	case 180000000:
+		return 25000000;
+	case 360000000:
+		return 50000000;
+	case 720000000:
+		return 100000000;
+	case 1440000000:
+		return 180000000;
+	default:
+		return parent_rate;
+	}
+}
+
+static long mmc_clk_determine_rate(struct clk_hw *hw, unsigned long rate,
+			      unsigned long min_rate,
+			      unsigned long max_rate,
+			      unsigned long *best_parent_rate,
+			      struct clk_hw **best_parent_p)
+{
+	struct clk_mmc *mclk = to_mmc(hw);
+	unsigned long best = 0;
+
+	if ((rate <= 13000000) && (mclk->id == HI3620_MMC_CIUCLK1)) {
+		rate = 13000000;
+		best = 26000000;
+	} else if (rate <= 26000000) {
+		rate = 25000000;
+		best = 180000000;
+	} else if (rate <= 52000000) {
+		rate = 50000000;
+		best = 360000000;
+	} else if (rate <= 100000000) {
+		rate = 100000000;
+		best = 720000000;
+	} else {
+		/* max is 180M */
+		rate = 180000000;
+		best = 1440000000;
+	}
+	*best_parent_rate = best;
+	return rate;
+}
+
+static u32 mmc_clk_delay(u32 val, u32 para, u32 off, u32 len)
+{
+	u32 i;
+
+	for (i = 0; i < len; i++) {
+		if (para % 2)
+			val |= 1 << (off + i);
+		else
+			val &= ~(1 << (off + i));
+		para = para >> 1;
+	}
+
+	return val;
+}
+
+static int mmc_clk_set_timing(struct clk_hw *hw, unsigned long rate)
+{
+	struct clk_mmc *mclk = to_mmc(hw);
+	unsigned long flags;
+	u32 sam, drv, div, val;
+	static DEFINE_SPINLOCK(mmc_clk_lock);
+
+	switch (rate) {
+	case 13000000:
+		sam = 3;
+		drv = 1;
+		div = 1;
+		break;
+	case 25000000:
+		sam = 13;
+		drv = 6;
+		div = 6;
+		break;
+	case 50000000:
+		sam = 3;
+		drv = 6;
+		div = 6;
+		break;
+	case 100000000:
+		sam = 6;
+		drv = 4;
+		div = 6;
+		break;
+	case 180000000:
+		sam = 6;
+		drv = 4;
+		div = 7;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&mmc_clk_lock, flags);
+
+	val = readl_relaxed(mclk->clken_reg);
+	val &= ~(1 << mclk->clken_bit);
+	writel_relaxed(val, mclk->clken_reg);
+
+	val = readl_relaxed(mclk->sam_reg);
+	val = mmc_clk_delay(val, sam, mclk->sam_off, mclk->sam_bits);
+	writel_relaxed(val, mclk->sam_reg);
+
+	val = readl_relaxed(mclk->drv_reg);
+	val = mmc_clk_delay(val, drv, mclk->drv_off, mclk->drv_bits);
+	writel_relaxed(val, mclk->drv_reg);
+
+	val = readl_relaxed(mclk->div_reg);
+	val = mmc_clk_delay(val, div, mclk->div_off, mclk->div_bits);
+	writel_relaxed(val, mclk->div_reg);
+
+	val = readl_relaxed(mclk->clken_reg);
+	val |= 1 << mclk->clken_bit;
+	writel_relaxed(val, mclk->clken_reg);
+
+	spin_unlock_irqrestore(&mmc_clk_lock, flags);
+
+	return 0;
+}
+
+static int mmc_clk_prepare(struct clk_hw *hw)
+{
+	struct clk_mmc *mclk = to_mmc(hw);
+	unsigned long rate;
+
+	if (mclk->id == HI3620_MMC_CIUCLK1)
+		rate = 13000000;
+	else
+		rate = 25000000;
+
+	return mmc_clk_set_timing(hw, rate);
+}
+
+static int mmc_clk_set_rate(struct clk_hw *hw, unsigned long rate,
+			     unsigned long parent_rate)
+{
+	return mmc_clk_set_timing(hw, rate);
+}
+
+static struct clk_ops clk_mmc_ops = {
+	.prepare = mmc_clk_prepare,
+	.determine_rate = mmc_clk_determine_rate,
+	.set_rate = mmc_clk_set_rate,
+	.recalc_rate = mmc_clk_recalc_rate,
+};
+
+static struct clk *hisi_register_clk_mmc(struct hisi_mmc_clock *mmc_clk,
+			void __iomem *base, struct device_node *np)
+{
+	struct clk_mmc *mclk;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	mclk = kzalloc(sizeof(*mclk), GFP_KERNEL);
+	if (!mclk) {
+		pr_err("%s: fail to allocate mmc clk\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	init.name = mmc_clk->name;
+	init.ops = &clk_mmc_ops;
+	init.flags = mmc_clk->flags | CLK_IS_BASIC;
+	init.parent_names = (mmc_clk->parent_name ? &mmc_clk->parent_name : NULL);
+	init.num_parents = (mmc_clk->parent_name ? 1 : 0);
+	mclk->hw.init = &init;
+
+	mclk->id = mmc_clk->id;
+	mclk->clken_reg = base + mmc_clk->clken_reg;
+	mclk->clken_bit = mmc_clk->clken_bit;
+	mclk->div_reg = base + mmc_clk->div_reg;
+	mclk->div_off = mmc_clk->div_off;
+	mclk->div_bits = mmc_clk->div_bits;
+	mclk->drv_reg = base + mmc_clk->drv_reg;
+	mclk->drv_off = mmc_clk->drv_off;
+	mclk->drv_bits = mmc_clk->drv_bits;
+	mclk->sam_reg = base + mmc_clk->sam_reg;
+	mclk->sam_off = mmc_clk->sam_off;
+	mclk->sam_bits = mmc_clk->sam_bits;
+
+	clk = clk_register(NULL, &mclk->hw);
+	if (WARN_ON(IS_ERR(clk)))
+		kfree(mclk);
+	return clk;
+}
+
+static void __init hi3620_mmc_clk_init(struct device_node *node)
+{
+	void __iomem *base;
+	int i, num = ARRAY_SIZE(hi3620_mmc_clks);
+	struct clk_onecell_data *clk_data;
+
+	if (!node) {
+		pr_err("failed to find pctrl node in DTS\n");
+		return;
+	}
+
+	base = of_iomap(node, 0);
+	if (!base) {
+		pr_err("failed to map pctrl\n");
+		return;
+	}
+
+	clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
+	if (WARN_ON(!clk_data))
+		return;
+
+	clk_data->clks = kzalloc(sizeof(struct clk *) * num, GFP_KERNEL);
+	if (!clk_data->clks) {
+		pr_err("%s: fail to allocate mmc clk\n", __func__);
+		return;
+	}
+
+	for (i = 0; i < num; i++) {
+		struct hisi_mmc_clock *mmc_clk = &hi3620_mmc_clks[i];
+		clk_data->clks[mmc_clk->id] =
+			hisi_register_clk_mmc(mmc_clk, base, node);
+	}
+
+	clk_data->clk_num = num;
+	of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+CLK_OF_DECLARE(hi3620_mmc_clk, "hisilicon,hi3620-mmc-clock", hi3620_mmc_clk_init);
diff --git a/kernel/drivers/clk/hisilicon/clk-hip04.c b/kernel/drivers/clk/hisilicon/clk-hip04.c
new file mode 100644
index 000000000..132b57a0c
--- /dev/null
+++ b/kernel/drivers/clk/hisilicon/clk-hip04.c
@@ -0,0 +1,58 @@
+/*
+ * Hisilicon HiP04 clock driver
+ *
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ * Copyright (c) 2013-2014 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+
+#include <dt-bindings/clock/hip04-clock.h>
+
+#include "clk.h"
+
+/* fixed rate clocks */
+static struct hisi_fixed_rate_clock hip04_fixed_rate_clks[] __initdata = {
+	{ HIP04_OSC50M,   "osc50m",   NULL, CLK_IS_ROOT, 50000000, },
+	{ HIP04_CLK_50M,  "clk50m",   NULL, CLK_IS_ROOT, 50000000, },
+	{ HIP04_CLK_168M, "clk168m",  NULL, CLK_IS_ROOT, 168750000, },
+};
+
+static void __init hip04_clk_init(struct device_node *np)
+{
+	struct hisi_clock_data *clk_data;
+
+	clk_data = hisi_clk_init(np, HIP04_NR_CLKS);
+	if (!clk_data)
+		return;
+
+	hisi_clk_register_fixed_rate(hip04_fixed_rate_clks,
+				     ARRAY_SIZE(hip04_fixed_rate_clks),
+				     clk_data);
+}
+CLK_OF_DECLARE(hip04_clk, "hisilicon,hip04-clock", hip04_clk_init);
diff --git a/kernel/drivers/clk/hisilicon/clk-hix5hd2.c b/kernel/drivers/clk/hisilicon/clk-hix5hd2.c
new file mode 100644
index 000000000..f1d239435
--- /dev/null
+++ b/kernel/drivers/clk/hisilicon/clk-hix5hd2.c
@@ -0,0 +1,321 @@
+/*
+ * Copyright (c) 2014 Linaro Ltd.
+ * Copyright (c) 2014 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/of_address.h>
+#include <dt-bindings/clock/hix5hd2-clock.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include "clk.h"
+
+static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] __initdata = {
+	{ HIX5HD2_FIXED_1200M, "1200m", NULL, CLK_IS_ROOT, 1200000000, },
+	{ HIX5HD2_FIXED_400M, "400m", NULL, CLK_IS_ROOT, 400000000, },
+	{ HIX5HD2_FIXED_48M, "48m", NULL, CLK_IS_ROOT, 48000000, },
+	{ HIX5HD2_FIXED_24M, "24m", NULL, CLK_IS_ROOT, 24000000, },
+	{ HIX5HD2_FIXED_600M, "600m", NULL, CLK_IS_ROOT, 600000000, },
+	{ HIX5HD2_FIXED_300M, "300m", NULL, CLK_IS_ROOT, 300000000, },
+	{ HIX5HD2_FIXED_75M, "75m", NULL, CLK_IS_ROOT, 75000000, },
+	{ HIX5HD2_FIXED_200M, "200m", NULL, CLK_IS_ROOT, 200000000, },
+	{ HIX5HD2_FIXED_100M, "100m", NULL, CLK_IS_ROOT, 100000000, },
+	{ HIX5HD2_FIXED_40M, "40m", NULL, CLK_IS_ROOT, 40000000, },
+	{ HIX5HD2_FIXED_150M, "150m", NULL, CLK_IS_ROOT, 150000000, },
+	{ HIX5HD2_FIXED_1728M, "1728m", NULL, CLK_IS_ROOT, 1728000000, },
+	{ HIX5HD2_FIXED_28P8M, "28p8m", NULL, CLK_IS_ROOT, 28000000, },
+	{ HIX5HD2_FIXED_432M, "432m", NULL, CLK_IS_ROOT, 432000000, },
+	{ HIX5HD2_FIXED_345P6M, "345p6m", NULL, CLK_IS_ROOT, 345000000, },
+	{ HIX5HD2_FIXED_288M, "288m", NULL, CLK_IS_ROOT, 288000000, },
+	{ HIX5HD2_FIXED_60M,	"60m", NULL, CLK_IS_ROOT, 60000000, },
+	{ HIX5HD2_FIXED_750M, "750m", NULL, CLK_IS_ROOT, 750000000, },
+	{ HIX5HD2_FIXED_500M, "500m", NULL, CLK_IS_ROOT, 500000000, },
+	{ HIX5HD2_FIXED_54M,	"54m", NULL, CLK_IS_ROOT, 54000000, },
+	{ HIX5HD2_FIXED_27M, "27m", NULL, CLK_IS_ROOT, 27000000, },
+	{ HIX5HD2_FIXED_1500M, "1500m", NULL, CLK_IS_ROOT, 1500000000, },
+	{ HIX5HD2_FIXED_375M, "375m", NULL, CLK_IS_ROOT, 375000000, },
+	{ HIX5HD2_FIXED_187M, "187m", NULL, CLK_IS_ROOT, 187000000, },
+	{ HIX5HD2_FIXED_250M, "250m", NULL, CLK_IS_ROOT, 250000000, },
+	{ HIX5HD2_FIXED_125M, "125m", NULL, CLK_IS_ROOT, 125000000, },
+	{ HIX5HD2_FIXED_2P02M, "2m", NULL, CLK_IS_ROOT, 2000000, },
+	{ HIX5HD2_FIXED_50M, "50m", NULL, CLK_IS_ROOT, 50000000, },
+	{ HIX5HD2_FIXED_25M, "25m", NULL, CLK_IS_ROOT, 25000000, },
+	{ HIX5HD2_FIXED_83M, "83m", NULL, CLK_IS_ROOT, 83333333, },
+};
+
+static const char *sfc_mux_p[] __initdata = {
+		"24m", "150m", "200m", "100m", "75m", };
+static u32 sfc_mux_table[] = {0, 4, 5, 6, 7};
+
+static const char *sdio_mux_p[] __initdata = {
+		"75m", "100m", "50m", "15m", };
+static u32 sdio_mux_table[] = {0, 1, 2, 3};
+
+static const char *fephy_mux_p[] __initdata = { "25m", "125m"};
+static u32 fephy_mux_table[] = {0, 1};
+
+
+static struct hisi_mux_clock hix5hd2_mux_clks[] __initdata = {
+	{ HIX5HD2_SFC_MUX, "sfc_mux", sfc_mux_p, ARRAY_SIZE(sfc_mux_p),
+		CLK_SET_RATE_PARENT, 0x5c, 8, 3, 0, sfc_mux_table, },
+	{ HIX5HD2_MMC_MUX, "mmc_mux", sdio_mux_p, ARRAY_SIZE(sdio_mux_p),
+		CLK_SET_RATE_PARENT, 0xa0, 8, 2, 0, sdio_mux_table, },
+	{ HIX5HD2_SD_MUX, "sd_mux", sdio_mux_p, ARRAY_SIZE(sdio_mux_p),
+		CLK_SET_RATE_PARENT, 0x9c, 8, 2, 0, sdio_mux_table, },
+	{ HIX5HD2_FEPHY_MUX, "fephy_mux",
+		fephy_mux_p, ARRAY_SIZE(fephy_mux_p),
+		CLK_SET_RATE_PARENT, 0x120, 8, 2, 0, fephy_mux_table, },
+};
+
+static struct hisi_gate_clock hix5hd2_gate_clks[] __initdata = {
+	/* sfc */
+	{ HIX5HD2_SFC_CLK, "clk_sfc", "sfc_mux",
+		CLK_SET_RATE_PARENT, 0x5c, 0, 0, },
+	{ HIX5HD2_SFC_RST, "rst_sfc", "clk_sfc",
+		CLK_SET_RATE_PARENT, 0x5c, 4, CLK_GATE_SET_TO_DISABLE, },
+	/* sdio0 */
+	{ HIX5HD2_SD_BIU_CLK, "clk_sd_biu", "200m",
+		CLK_SET_RATE_PARENT, 0x9c, 0, 0, },
+	{ HIX5HD2_SD_CIU_CLK, "clk_sd_ciu", "sd_mux",
+		CLK_SET_RATE_PARENT, 0x9c, 1, 0, },
+	{ HIX5HD2_SD_CIU_RST, "rst_sd_ciu", "clk_sd_ciu",
+		CLK_SET_RATE_PARENT, 0x9c, 4, CLK_GATE_SET_TO_DISABLE, },
+	/* sdio1 */
+	{ HIX5HD2_MMC_BIU_CLK, "clk_mmc_biu", "200m",
+		CLK_SET_RATE_PARENT, 0xa0, 0, 0, },
+	{ HIX5HD2_MMC_CIU_CLK, "clk_mmc_ciu", "mmc_mux",
+		CLK_SET_RATE_PARENT, 0xa0, 1, 0, },
+	{ HIX5HD2_MMC_CIU_RST, "rst_mmc_ciu", "clk_mmc_ciu",
+		CLK_SET_RATE_PARENT, 0xa0, 4, CLK_GATE_SET_TO_DISABLE, },
+	/* gsf */
+	{ HIX5HD2_FWD_BUS_CLK, "clk_fwd_bus", NULL, 0, 0xcc, 0, 0, },
+	{ HIX5HD2_FWD_SYS_CLK, "clk_fwd_sys", "clk_fwd_bus", 0, 0xcc, 5, 0, },
+	{ HIX5HD2_MAC0_PHY_CLK, "clk_fephy", "clk_fwd_sys",
+		 CLK_SET_RATE_PARENT, 0x120, 0, 0, },
+	/* wdg0 */
+	{ HIX5HD2_WDG0_CLK, "clk_wdg0", "24m",
+		CLK_SET_RATE_PARENT, 0x178, 0, 0, },
+	{ HIX5HD2_WDG0_RST, "rst_wdg0", "clk_wdg0",
+		CLK_SET_RATE_PARENT, 0x178, 4, CLK_GATE_SET_TO_DISABLE, },
+	/* I2C */
+	{HIX5HD2_I2C0_CLK, "clk_i2c0", "100m",
+		 CLK_SET_RATE_PARENT, 0x06c, 4, 0, },
+	{HIX5HD2_I2C0_RST, "rst_i2c0", "clk_i2c0",
+		 CLK_SET_RATE_PARENT, 0x06c, 5, CLK_GATE_SET_TO_DISABLE, },
+	{HIX5HD2_I2C1_CLK, "clk_i2c1", "100m",
+		 CLK_SET_RATE_PARENT, 0x06c, 8, 0, },
+	{HIX5HD2_I2C1_RST, "rst_i2c1", "clk_i2c1",
+		 CLK_SET_RATE_PARENT, 0x06c, 9, CLK_GATE_SET_TO_DISABLE, },
+	{HIX5HD2_I2C2_CLK, "clk_i2c2", "100m",
+		 CLK_SET_RATE_PARENT, 0x06c, 12, 0, },
+	{HIX5HD2_I2C2_RST, "rst_i2c2", "clk_i2c2",
+		 CLK_SET_RATE_PARENT, 0x06c, 13, CLK_GATE_SET_TO_DISABLE, },
+	{HIX5HD2_I2C3_CLK, "clk_i2c3", "100m",
+		 CLK_SET_RATE_PARENT, 0x06c, 16, 0, },
+	{HIX5HD2_I2C3_RST, "rst_i2c3", "clk_i2c3",
+		 CLK_SET_RATE_PARENT, 0x06c, 17, CLK_GATE_SET_TO_DISABLE, },
+	{HIX5HD2_I2C4_CLK, "clk_i2c4", "100m",
+		 CLK_SET_RATE_PARENT, 0x06c, 20, 0, },
+	{HIX5HD2_I2C4_RST, "rst_i2c4", "clk_i2c4",
+		 CLK_SET_RATE_PARENT, 0x06c, 21, CLK_GATE_SET_TO_DISABLE, },
+	{HIX5HD2_I2C5_CLK, "clk_i2c5", "100m",
+		 CLK_SET_RATE_PARENT, 0x06c, 0, 0, },
+	{HIX5HD2_I2C5_RST, "rst_i2c5", "clk_i2c5",
+		 CLK_SET_RATE_PARENT, 0x06c, 1, CLK_GATE_SET_TO_DISABLE, },
+};
+
+enum hix5hd2_clk_type {
+	TYPE_COMPLEX,
+	TYPE_ETHER,
+};
+
+struct hix5hd2_complex_clock {
+	const char	*name;
+	const char	*parent_name;
+	u32		id;
+	u32		ctrl_reg;
+	u32		ctrl_clk_mask;
+	u32		ctrl_rst_mask;
+	u32		phy_reg;
+	u32		phy_clk_mask;
+	u32		phy_rst_mask;
+	enum hix5hd2_clk_type type;
+};
+
+struct hix5hd2_clk_complex {
+	struct clk_hw	hw;
+	u32		id;
+	void __iomem	*ctrl_reg;
+	u32		ctrl_clk_mask;
+	u32		ctrl_rst_mask;
+	void __iomem	*phy_reg;
+	u32		phy_clk_mask;
+	u32		phy_rst_mask;
+};
+
+static struct hix5hd2_complex_clock hix5hd2_complex_clks[] __initdata = {
+	{"clk_mac0", "clk_fephy", HIX5HD2_MAC0_CLK,
+		0xcc, 0xa, 0x500, 0x120, 0, 0x10, TYPE_ETHER},
+	{"clk_mac1", "clk_fwd_sys", HIX5HD2_MAC1_CLK,
+		0xcc, 0x14, 0xa00, 0x168, 0x2, 0, TYPE_ETHER},
+	{"clk_sata", NULL, HIX5HD2_SATA_CLK,
+		0xa8, 0x1f, 0x300, 0xac, 0x1, 0x0, TYPE_COMPLEX},
+	{"clk_usb", NULL, HIX5HD2_USB_CLK,
+		0xb8, 0xff, 0x3f000, 0xbc, 0x7, 0x3f00, TYPE_COMPLEX},
+};
+
+#define to_complex_clk(_hw) container_of(_hw, struct hix5hd2_clk_complex, hw)
+
+static int clk_ether_prepare(struct clk_hw *hw)
+{
+	struct hix5hd2_clk_complex *clk = to_complex_clk(hw);
+	u32 val;
+
+	val = readl_relaxed(clk->ctrl_reg);
+	val |= clk->ctrl_clk_mask | clk->ctrl_rst_mask;
+	writel_relaxed(val, clk->ctrl_reg);
+	val &= ~(clk->ctrl_rst_mask);
+	writel_relaxed(val, clk->ctrl_reg);
+
+	val = readl_relaxed(clk->phy_reg);
+	val |= clk->phy_clk_mask;
+	val &= ~(clk->phy_rst_mask);
+	writel_relaxed(val, clk->phy_reg);
+	mdelay(10);
+
+	val &= ~(clk->phy_clk_mask);
+	val |= clk->phy_rst_mask;
+	writel_relaxed(val, clk->phy_reg);
+	mdelay(10);
+
+	val |= clk->phy_clk_mask;
+	val &= ~(clk->phy_rst_mask);
+	writel_relaxed(val, clk->phy_reg);
+	mdelay(30);
+	return 0;
+}
+
+static void clk_ether_unprepare(struct clk_hw *hw)
+{
+	struct hix5hd2_clk_complex *clk = to_complex_clk(hw);
+	u32 val;
+
+	val = readl_relaxed(clk->ctrl_reg);
+	val &= ~(clk->ctrl_clk_mask);
+	writel_relaxed(val, clk->ctrl_reg);
+}
+
+static struct clk_ops clk_ether_ops = {
+	.prepare = clk_ether_prepare,
+	.unprepare = clk_ether_unprepare,
+};
+
+static int clk_complex_enable(struct clk_hw *hw)
+{
+	struct hix5hd2_clk_complex *clk = to_complex_clk(hw);
+	u32 val;
+
+	val = readl_relaxed(clk->ctrl_reg);
+	val |= clk->ctrl_clk_mask;
+	val &= ~(clk->ctrl_rst_mask);
+	writel_relaxed(val, clk->ctrl_reg);
+
+	val = readl_relaxed(clk->phy_reg);
+	val |= clk->phy_clk_mask;
+	val &= ~(clk->phy_rst_mask);
+	writel_relaxed(val, clk->phy_reg);
+
+	return 0;
+}
+
+static void clk_complex_disable(struct clk_hw *hw)
+{
+	struct hix5hd2_clk_complex *clk = to_complex_clk(hw);
+	u32 val;
+
+	val = readl_relaxed(clk->ctrl_reg);
+	val |= clk->ctrl_rst_mask;
+	val &= ~(clk->ctrl_clk_mask);
+	writel_relaxed(val, clk->ctrl_reg);
+
+	val = readl_relaxed(clk->phy_reg);
+	val |= clk->phy_rst_mask;
+	val &= ~(clk->phy_clk_mask);
+	writel_relaxed(val, clk->phy_reg);
+}
+
+static struct clk_ops clk_complex_ops = {
+	.enable = clk_complex_enable,
+	.disable = clk_complex_disable,
+};
+
+void __init hix5hd2_clk_register_complex(struct hix5hd2_complex_clock *clks,
+					 int nums, struct hisi_clock_data *data)
+{
+	void __iomem *base = data->base;
+	int i;
+
+	for (i = 0; i < nums; i++) {
+		struct hix5hd2_clk_complex *p_clk;
+		struct clk *clk;
+		struct clk_init_data init;
+
+		p_clk = kzalloc(sizeof(*p_clk), GFP_KERNEL);
+		if (!p_clk)
+			return;
+
+		init.name = clks[i].name;
+		if (clks[i].type == TYPE_ETHER)
+			init.ops = &clk_ether_ops;
+		else
+			init.ops = &clk_complex_ops;
+
+		init.flags = CLK_IS_BASIC;
+		init.parent_names =
+			(clks[i].parent_name ? &clks[i].parent_name : NULL);
+		init.num_parents = (clks[i].parent_name ? 1 : 0);
+
+		p_clk->ctrl_reg = base + clks[i].ctrl_reg;
+		p_clk->ctrl_clk_mask = clks[i].ctrl_clk_mask;
+		p_clk->ctrl_rst_mask = clks[i].ctrl_rst_mask;
+		p_clk->phy_reg = base + clks[i].phy_reg;
+		p_clk->phy_clk_mask = clks[i].phy_clk_mask;
+		p_clk->phy_rst_mask = clks[i].phy_rst_mask;
+		p_clk->hw.init = &init;
+
+		clk = clk_register(NULL, &p_clk->hw);
+		if (IS_ERR(clk)) {
+			kfree(p_clk);
+			pr_err("%s: failed to register clock %s\n",
+			       __func__, clks[i].name);
+			continue;
+		}
+
+		data->clk_data.clks[clks[i].id] = clk;
+	}
+}
+
+static void __init hix5hd2_clk_init(struct device_node *np)
+{
+	struct hisi_clock_data *clk_data;
+
+	clk_data = hisi_clk_init(np, HIX5HD2_NR_CLKS);
+	if (!clk_data)
+		return;
+
+	hisi_clk_register_fixed_rate(hix5hd2_fixed_rate_clks,
+				     ARRAY_SIZE(hix5hd2_fixed_rate_clks),
+				     clk_data);
+	hisi_clk_register_mux(hix5hd2_mux_clks, ARRAY_SIZE(hix5hd2_mux_clks),
+					clk_data);
+	hisi_clk_register_gate(hix5hd2_gate_clks,
+			ARRAY_SIZE(hix5hd2_gate_clks), clk_data);
+	hix5hd2_clk_register_complex(hix5hd2_complex_clks,
+				     ARRAY_SIZE(hix5hd2_complex_clks),
+				     clk_data);
+}
+
+CLK_OF_DECLARE(hix5hd2_clk, "hisilicon,hix5hd2-clock", hix5hd2_clk_init);
diff --git a/kernel/drivers/clk/hisilicon/clk.c b/kernel/drivers/clk/hisilicon/clk.c
new file mode 100644
index 000000000..a078e84f7
--- /dev/null
+++ b/kernel/drivers/clk/hisilicon/clk.c
@@ -0,0 +1,234 @@
+/*
+ * Hisilicon clock driver
+ *
+ * Copyright (c) 2012-2013 Hisilicon Limited.
+ * Copyright (c) 2012-2013 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *	   Xin Li <li.xin@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+
+#include "clk.h"
+
+static DEFINE_SPINLOCK(hisi_clk_lock);
+
+struct hisi_clock_data __init *hisi_clk_init(struct device_node *np,
+					     int nr_clks)
+{
+	struct hisi_clock_data *clk_data;
+	struct clk **clk_table;
+	void __iomem *base;
+
+	if (np) {
+		base = of_iomap(np, 0);
+		if (!base) {
+			pr_err("failed to map Hisilicon clock registers\n");
+			goto err;
+		}
+	} else {
+		pr_err("failed to find Hisilicon clock node in DTS\n");
+		goto err;
+	}
+
+	clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
+	if (!clk_data) {
+		pr_err("%s: could not allocate clock data\n", __func__);
+		goto err;
+	}
+	clk_data->base = base;
+
+	clk_table = kzalloc(sizeof(struct clk *) * nr_clks, GFP_KERNEL);
+	if (!clk_table) {
+		pr_err("%s: could not allocate clock lookup table\n", __func__);
+		goto err_data;
+	}
+	clk_data->clk_data.clks = clk_table;
+	clk_data->clk_data.clk_num = nr_clks;
+	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data->clk_data);
+	return clk_data;
+err_data:
+	kfree(clk_data);
+err:
+	return NULL;
+}
+
+void __init hisi_clk_register_fixed_rate(struct hisi_fixed_rate_clock *clks,
+					 int nums, struct hisi_clock_data *data)
+{
+	struct clk *clk;
+	int i;
+
+	for (i = 0; i < nums; i++) {
+		clk = clk_register_fixed_rate(NULL, clks[i].name,
+					      clks[i].parent_name,
+					      clks[i].flags,
+					      clks[i].fixed_rate);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n",
+			       __func__, clks[i].name);
+			continue;
+		}
+		data->clk_data.clks[clks[i].id] = clk;
+	}
+}
+
+void __init hisi_clk_register_fixed_factor(struct hisi_fixed_factor_clock *clks,
+					   int nums,
+					   struct hisi_clock_data *data)
+{
+	struct clk *clk;
+	int i;
+
+	for (i = 0; i < nums; i++) {
+		clk = clk_register_fixed_factor(NULL, clks[i].name,
+						clks[i].parent_name,
+						clks[i].flags, clks[i].mult,
+						clks[i].div);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n",
+			       __func__, clks[i].name);
+			continue;
+		}
+		data->clk_data.clks[clks[i].id] = clk;
+	}
+}
+
+void __init hisi_clk_register_mux(struct hisi_mux_clock *clks,
+				  int nums, struct hisi_clock_data *data)
+{
+	struct clk *clk;
+	void __iomem *base = data->base;
+	int i;
+
+	for (i = 0; i < nums; i++) {
+		u32 mask = BIT(clks[i].width) - 1;
+
+		clk = clk_register_mux_table(NULL, clks[i].name,
+					clks[i].parent_names,
+					clks[i].num_parents, clks[i].flags,
+					base + clks[i].offset, clks[i].shift,
+					mask, clks[i].mux_flags,
+					clks[i].table, &hisi_clk_lock);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n",
+			       __func__, clks[i].name);
+			continue;
+		}
+
+		if (clks[i].alias)
+			clk_register_clkdev(clk, clks[i].alias, NULL);
+
+		data->clk_data.clks[clks[i].id] = clk;
+	}
+}
+
+void __init hisi_clk_register_divider(struct hisi_divider_clock *clks,
+				      int nums, struct hisi_clock_data *data)
+{
+	struct clk *clk;
+	void __iomem *base = data->base;
+	int i;
+
+	for (i = 0; i < nums; i++) {
+		clk = clk_register_divider_table(NULL, clks[i].name,
+						 clks[i].parent_name,
+						 clks[i].flags,
+						 base + clks[i].offset,
+						 clks[i].shift, clks[i].width,
+						 clks[i].div_flags,
+						 clks[i].table,
+						 &hisi_clk_lock);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n",
+			       __func__, clks[i].name);
+			continue;
+		}
+
+		if (clks[i].alias)
+			clk_register_clkdev(clk, clks[i].alias, NULL);
+
+		data->clk_data.clks[clks[i].id] = clk;
+	}
+}
+
+void __init hisi_clk_register_gate(struct hisi_gate_clock *clks,
+				       int nums, struct hisi_clock_data *data)
+{
+	struct clk *clk;
+	void __iomem *base = data->base;
+	int i;
+
+	for (i = 0; i < nums; i++) {
+		clk = clk_register_gate(NULL, clks[i].name,
+						clks[i].parent_name,
+						clks[i].flags,
+						base + clks[i].offset,
+						clks[i].bit_idx,
+						clks[i].gate_flags,
+						&hisi_clk_lock);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n",
+			       __func__, clks[i].name);
+			continue;
+		}
+
+		if (clks[i].alias)
+			clk_register_clkdev(clk, clks[i].alias, NULL);
+
+		data->clk_data.clks[clks[i].id] = clk;
+	}
+}
+
+void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *clks,
+				       int nums, struct hisi_clock_data *data)
+{
+	struct clk *clk;
+	void __iomem *base = data->base;
+	int i;
+
+	for (i = 0; i < nums; i++) {
+		clk = hisi_register_clkgate_sep(NULL, clks[i].name,
+						clks[i].parent_name,
+						clks[i].flags,
+						base + clks[i].offset,
+						clks[i].bit_idx,
+						clks[i].gate_flags,
+						&hisi_clk_lock);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to register clock %s\n",
+			       __func__, clks[i].name);
+			continue;
+		}
+
+		if (clks[i].alias)
+			clk_register_clkdev(clk, clks[i].alias, NULL);
+
+		data->clk_data.clks[clks[i].id] = clk;
+	}
+}
diff --git a/kernel/drivers/clk/hisilicon/clk.h b/kernel/drivers/clk/hisilicon/clk.h
new file mode 100644
index 000000000..31083ffc0
--- /dev/null
+++ b/kernel/drivers/clk/hisilicon/clk.h
@@ -0,0 +1,111 @@
+/*
+ * Hisilicon Hi3620 clock gate driver
+ *
+ * Copyright (c) 2012-2013 Hisilicon Limited.
+ * Copyright (c) 2012-2013 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *	   Xin Li <li.xin@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef	__HISI_CLK_H
+#define	__HISI_CLK_H
+
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+struct hisi_clock_data {
+	struct clk_onecell_data	clk_data;
+	void __iomem		*base;
+};
+
+struct hisi_fixed_rate_clock {
+	unsigned int		id;
+	char			*name;
+	const char		*parent_name;
+	unsigned long		flags;
+	unsigned long		fixed_rate;
+};
+
+struct hisi_fixed_factor_clock {
+	unsigned int		id;
+	char			*name;
+	const char		*parent_name;
+	unsigned long		mult;
+	unsigned long		div;
+	unsigned long		flags;
+};
+
+struct hisi_mux_clock {
+	unsigned int		id;
+	const char		*name;
+	const char		**parent_names;
+	u8			num_parents;
+	unsigned long		flags;
+	unsigned long		offset;
+	u8			shift;
+	u8			width;
+	u8			mux_flags;
+	u32			*table;
+	const char		*alias;
+};
+
+struct hisi_divider_clock {
+	unsigned int		id;
+	const char		*name;
+	const char		*parent_name;
+	unsigned long		flags;
+	unsigned long		offset;
+	u8			shift;
+	u8			width;
+	u8			div_flags;
+	struct clk_div_table	*table;
+	const char		*alias;
+};
+
+struct hisi_gate_clock {
+	unsigned int		id;
+	const char		*name;
+	const char		*parent_name;
+	unsigned long		flags;
+	unsigned long		offset;
+	u8			bit_idx;
+	u8			gate_flags;
+	const char		*alias;
+};
+
+struct clk *hisi_register_clkgate_sep(struct device *, const char *,
+				const char *, unsigned long,
+				void __iomem *, u8,
+				u8, spinlock_t *);
+
+struct hisi_clock_data __init *hisi_clk_init(struct device_node *, int);
+void __init hisi_clk_register_fixed_rate(struct hisi_fixed_rate_clock *,
+					int, struct hisi_clock_data *);
+void __init hisi_clk_register_fixed_factor(struct hisi_fixed_factor_clock *,
+					int, struct hisi_clock_data *);
+void __init hisi_clk_register_mux(struct hisi_mux_clock *, int,
+				struct hisi_clock_data *);
+void __init hisi_clk_register_divider(struct hisi_divider_clock *,
+				int, struct hisi_clock_data *);
+void __init hisi_clk_register_gate(struct hisi_gate_clock *,
+					int, struct hisi_clock_data *);
+void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *,
+					int, struct hisi_clock_data *);
+#endif	/* __HISI_CLK_H */
diff --git a/kernel/drivers/clk/hisilicon/clkgate-separated.c b/kernel/drivers/clk/hisilicon/clkgate-separated.c
new file mode 100644
index 000000000..b03d5a724
--- /dev/null
+++ b/kernel/drivers/clk/hisilicon/clkgate-separated.c
@@ -0,0 +1,130 @@
+/*
+ * Hisilicon clock separated gate driver
+ *
+ * Copyright (c) 2012-2013 Hisilicon Limited.
+ * Copyright (c) 2012-2013 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *	   Xin Li <li.xin@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+
+#include "clk.h"
+
+/* clock separated gate register offset */
+#define CLKGATE_SEPERATED_ENABLE		0x0
+#define CLKGATE_SEPERATED_DISABLE		0x4
+#define CLKGATE_SEPERATED_STATUS		0x8
+
+struct clkgate_separated {
+	struct clk_hw	hw;
+	void __iomem	*enable;	/* enable register */
+	u8		bit_idx;	/* bits in enable/disable register */
+	u8		flags;
+	spinlock_t	*lock;
+};
+
+static int clkgate_separated_enable(struct clk_hw *hw)
+{
+	struct clkgate_separated *sclk;
+	unsigned long flags = 0;
+	u32 reg;
+
+	sclk = container_of(hw, struct clkgate_separated, hw);
+	if (sclk->lock)
+		spin_lock_irqsave(sclk->lock, flags);
+	reg = BIT(sclk->bit_idx);
+	writel_relaxed(reg, sclk->enable);
+	readl_relaxed(sclk->enable + CLKGATE_SEPERATED_STATUS);
+	if (sclk->lock)
+		spin_unlock_irqrestore(sclk->lock, flags);
+	return 0;
+}
+
+static void clkgate_separated_disable(struct clk_hw *hw)
+{
+	struct clkgate_separated *sclk;
+	unsigned long flags = 0;
+	u32 reg;
+
+	sclk = container_of(hw, struct clkgate_separated, hw);
+	if (sclk->lock)
+		spin_lock_irqsave(sclk->lock, flags);
+	reg = BIT(sclk->bit_idx);
+	writel_relaxed(reg, sclk->enable + CLKGATE_SEPERATED_DISABLE);
+	readl_relaxed(sclk->enable + CLKGATE_SEPERATED_STATUS);
+	if (sclk->lock)
+		spin_unlock_irqrestore(sclk->lock, flags);
+}
+
+static int clkgate_separated_is_enabled(struct clk_hw *hw)
+{
+	struct clkgate_separated *sclk;
+	u32 reg;
+
+	sclk = container_of(hw, struct clkgate_separated, hw);
+	reg = readl_relaxed(sclk->enable + CLKGATE_SEPERATED_STATUS);
+	reg &= BIT(sclk->bit_idx);
+
+	return reg ? 1 : 0;
+}
+
+static struct clk_ops clkgate_separated_ops = {
+	.enable		= clkgate_separated_enable,
+	.disable	= clkgate_separated_disable,
+	.is_enabled	= clkgate_separated_is_enabled,
+};
+
+struct clk *hisi_register_clkgate_sep(struct device *dev, const char *name,
+				      const char *parent_name,
+				      unsigned long flags,
+				      void __iomem *reg, u8 bit_idx,
+				      u8 clk_gate_flags, spinlock_t *lock)
+{
+	struct clkgate_separated *sclk;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	sclk = kzalloc(sizeof(*sclk), GFP_KERNEL);
+	if (!sclk) {
+		pr_err("%s: fail to allocate separated gated clk\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	init.name = name;
+	init.ops = &clkgate_separated_ops;
+	init.flags = flags | CLK_IS_BASIC;
+	init.parent_names = (parent_name ? &parent_name : NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
+	sclk->enable = reg + CLKGATE_SEPERATED_ENABLE;
+	sclk->bit_idx = bit_idx;
+	sclk->flags = clk_gate_flags;
+	sclk->hw.init = &init;
+
+	clk = clk_register(dev, &sclk->hw);
+	if (IS_ERR(clk))
+		kfree(sclk);
+	return clk;
+}