diff mbox

[v5,3/8] clk: rockchip: add clock controller for rk3036

Message ID 1445833539-6484-4-git-send-email-zhengxing@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

zhengxing Oct. 26, 2015, 4:25 a.m. UTC 
Add the clock tree definition for the new rk3036 SoC.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
---

Changes in v5: None

 drivers/clk/rockchip/Makefile     |    1 +
 drivers/clk/rockchip/clk-rk3036.c |  500 +++++++++++++++++++++++++++++++++++++
 drivers/clk/rockchip/clk.h        |   30 +++
 3 files changed, 531 insertions(+)
 create mode 100644 drivers/clk/rockchip/clk-rk3036.c

Comments

Heiko Stübner Oct. 28, 2015, 7:53 a.m. UTC | #1 
Am Montag, 26. Oktober 2015, 12:25:34 schrieb Xing Zheng:
> diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
> index dc8ecb2..4b79f34 100644
> --- a/drivers/clk/rockchip/clk.h
> +++ b/drivers/clk/rockchip/clk.h
> @@ -2,6 +2,9 @@
>   * Copyright (c) 2014 MundoReader S.L.
>   * Author: Heiko Stuebner <heiko@sntech.de>
>   *
> + * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
> + * Author: Xing Zheng <zhengxing@rock-chips.com>
> + *
>   * based on
>   *
>   * samsung/clk.h
> @@ -40,6 +43,13 @@ struct clk;
>  #define RK2928_SOFTRST_CON(x)	((x) * 0x4 + 0x110)
>  #define RK2928_MISC_CON		0x134
>  
> +#define RK3036_SDMMC_CON0		0x144
> +#define RK3036_SDMMC_CON1		0x148
> +#define RK3036_SDIO_CON0		0x14c
> +#define RK3036_SDIO_CON1		0x150
> +#define RK3036_EMMC_CON0		0x154
> +#define RK3036_EMMC_CON1		0x158
> +
>  #define RK3288_PLL_CON(x)		RK2928_PLL_CON(x)
>  #define RK3288_MODE_CON			0x50
>  #define RK3288_CLKSEL_CON(x)		((x) * 0x4 + 0x60)
> @@ -74,9 +84,22 @@ struct clk;
>  #define RK3368_EMMC_CON1		0x41c
>  
>  enum rockchip_pll_type {
> +	pll_rk3036,
>  	pll_rk3066,
>  };
>  
> +#define RK3036_PLL_RATE(_rate, _refdiv, _fbdiv, _postdiv1,	\
> +			_postdiv2, _dsmpd, _frac)		\
> +{								\
> +	.rate	= _rate##U,					\
> +	.fbdiv = _fbdiv,					\
> +	.postdiv1 = _postdiv1,					\
> +	.refdiv = _refdiv,					\
> +	.postdiv2 = _postdiv2,					\
> +	.dsmpd = _dsmpd,					\
> +	.frac = _frac,						\
> +}
> +
>  #define RK3066_PLL_RATE(_rate, _nr, _nf, _no)	\
>  {						\
>  	.rate	= _rate##U,			\
> @@ -101,6 +124,13 @@ struct rockchip_pll_rate_table {
>  	unsigned int nf;
>  	unsigned int no;
>  	unsigned int nb;
> +	/* for RK3036 */
> +	unsigned int fbdiv;
> +	unsigned int postdiv1;
> +	unsigned int refdiv;
> +	unsigned int postdiv2;
> +	unsigned int dsmpd;
> +	unsigned int frac;
>  };
>  
>  /**

the changes to our clk.h should be part of the addition of the pll itself
(your current patch4) and that patch should then trade places with
this one, so you add the complete pll type first and this clock controller
afterwards.


Heiko
diff mbox

Patch

diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile
index b27edd6..d599829 100644
--- a/drivers/clk/rockchip/Makefile
+++ b/drivers/clk/rockchip/Makefile
@@ -10,6 +10,7 @@  obj-y	+= clk-inverter.o
 obj-y	+= clk-mmc-phase.o
 obj-$(CONFIG_RESET_CONTROLLER)	+= softrst.o
 
+obj-y	+= clk-rk3036.o
 obj-y	+= clk-rk3188.o
 obj-y	+= clk-rk3288.o
 obj-y	+= clk-rk3368.o
diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c
new file mode 100644
index 0000000..6f49df3
--- /dev/null
+++ b/drivers/clk/rockchip/clk-rk3036.c
@@ -0,0 +1,500 @@ 
+/*
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ *
+ * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
+ * Author: Xing Zheng <zhengxing@rock-chips.com>
+ *
+ * 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.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/syscore_ops.h>
+#include <dt-bindings/clock/rk3036-cru.h>
+#include "clk.h"
+
+#define RK3036_GRF_SOC_STATUS0	0x14c
+
+enum rk3036_plls {
+	apll, dpll, gpll,
+};
+
+static struct rockchip_pll_rate_table rk3036_pll_rates[] = {
+	/* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
+	RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0),
+	RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
+	RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0),
+	RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0),
+	RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0),
+	RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0),
+	RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0),
+	RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0),
+	RK3036_PLL_RATE(  96000000, 1, 64, 4, 4, 1, 0),
+	{ /* sentinel */ },
+};
+
+#define RK3036_DIV_CPU_MASK		0x1f
+#define RK3036_DIV_CPU_SHIFT		8
+
+#define RK3036_DIV_PERI_MASK		0xf
+#define RK3036_DIV_PERI_SHIFT		0
+#define RK3036_DIV_ACLK_MASK		0x7
+#define RK3036_DIV_ACLK_SHIFT		4
+#define RK3036_DIV_HCLK_MASK		0x3
+#define RK3036_DIV_HCLK_SHIFT		8
+#define RK3036_DIV_PCLK_MASK		0x7
+#define RK3036_DIV_PCLK_SHIFT		12
+
+#define RK3036_CLKSEL1(_core_periph_div)					\
+	{									\
+		.reg = RK2928_CLKSEL_CON(1),					\
+		.val = HIWORD_UPDATE(_core_periph_div, RK3036_DIV_PERI_MASK,	\
+				RK3036_DIV_PERI_SHIFT)				\
+	}
+
+#define RK3036_CPUCLK_RATE(_prate, _core_periph_div)			\
+	{								\
+		.prate = _prate,					\
+		.divs = {						\
+			RK3036_CLKSEL1(_core_periph_div),		\
+		},							\
+	}
+
+static struct rockchip_cpuclk_rate_table rk3036_cpuclk_rates[] __initdata = {
+	RK3036_CPUCLK_RATE(816000000, 4),
+	RK3036_CPUCLK_RATE(600000000, 4),
+	RK3036_CPUCLK_RATE(312000000, 4),
+};
+
+static const struct rockchip_cpuclk_reg_data rk3036_cpuclk_data = {
+	.core_reg = RK2928_CLKSEL_CON(0),
+	.div_core_shift = 0,
+	.div_core_mask = 0x1f,
+	.mux_core_shift = 7,
+};
+
+PNAME(mux_pll_p)		= { "xin24m", "xin24m" };
+
+PNAME(mux_armclk_p)		= { "apll", "gpll_armclk" };
+PNAME(mux_busclk_p)		= { "apll", "dpll_cpu", "gpll_cpu" };
+PNAME(mux_ddrphy_p)		= { "dpll_ddr", "gpll_ddr" };
+PNAME(mux_pll_src_3plls_p)	= { "apll", "dpll", "gpll" };
+PNAME(mux_timer_p)		= { "xin24m", "pclk_peri_src" };
+
+PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p)	= { "apll", "dpll", "gpll" "usb480m" };
+
+PNAME(mux_mmc_src_p)	= { "apll", "dpll", "gpll", "xin24m" };
+PNAME(mux_i2s_pre_p)	= { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
+PNAME(mux_i2s_clkout_p)	= { "i2s_pre", "xin12m" };
+PNAME(mux_spdif_p)	= { "spdif_src", "spdif_frac", "xin12m" };
+PNAME(mux_uart0_p)	= { "uart0_src", "uart0_frac", "xin24m" };
+PNAME(mux_uart1_p)	= { "uart1_src", "uart1_frac", "xin24m" };
+PNAME(mux_uart2_p)	= { "uart2_src", "uart2_frac", "xin24m" };
+PNAME(mux_mac_p)	= { "mac_pll_src", "ext_gmac" };
+PNAME(mux_dclk_p)	= { "dclk_lcdc", "dclk_hdmi_src" };
+
+static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = {
+	[apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0),
+		     RK2928_MODE_CON, 0, 5, 0, rk3036_pll_rates),
+	[dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4),
+		     RK2928_MODE_CON, 4, 4, 0, NULL),
+	[gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12),
+		     RK2928_MODE_CON, 12, 6, ROCKCHIP_PLL_SYNC_RATE, rk3036_pll_rates),
+};
+
+#define MFLAGS CLK_MUX_HIWORD_MASK
+#define DFLAGS CLK_DIVIDER_HIWORD_MASK
+#define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE)
+
+static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
+	/*
+	 * Clock-Architecture Diagram 1
+	 */
+
+	/* PD_CORE */
+	GATE(0, "gpll_armclk", "gpll", CLK_IGNORE_UNUSED,
+			RK2928_CLKGATE_CON(0), 6, GFLAGS),
+
+	/*
+	 * Clock-Architecture Diagram 2
+	 */
+
+	/* PD_DDR */
+	GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED,
+			RK2928_CLKGATE_CON(0), 2, GFLAGS),
+	GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED,
+			RK2928_CLKGATE_CON(0), 8, GFLAGS),
+	COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
+
+	/* PD_CORE */
+	COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
+			RK2928_CLKGATE_CON(0), 7, GFLAGS),
+	COMPOSITE_NOMUX(0, "aclk_core_pre", "armclk", CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+			RK2928_CLKGATE_CON(0), 7, GFLAGS),
+
+	/* PD_CPU (BUS) */
+	GATE(0, "dpll_cpu", "dpll", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS),
+	GATE(0, "gpll_cpu", "gpll", 0, RK2928_CLKGATE_CON(0), 1, GFLAGS),
+	COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_busclk_p, 0,
+			RK2928_CLKSEL_CON(0), 14, 2, MFLAGS, 8, 5, DFLAGS),
+	GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
+			RK2928_CLKGATE_CON(0), 3, GFLAGS),
+	COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(1), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+			RK2928_CLKGATE_CON(0), 5, GFLAGS),
+	COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(1), 8, 2, DFLAGS | CLK_DIVIDER_READ_ONLY,
+			RK2928_CLKGATE_CON(0), 4, GFLAGS),
+
+	/* PD_PERI */
+	COMPOSITE(0, "aclk_peri_src", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS,
+			RK2928_CLKGATE_CON(2), 0, GFLAGS),
+
+	GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0,
+			RK2928_CLKGATE_CON(2), 1, GFLAGS),
+	/* pclk_peri_src is soure for timers */
+	DIV(0, "pclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
+	GATE(PCLK_PERI, "pclk_peri", "pclk_peri_src", 0,
+			RK2928_CLKGATE_CON(2), 3, GFLAGS),
+	/* hclk_peri_src is soure for sclk_macref_out */
+	DIV(0, "hclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
+	GATE(HCLK_PERI, "hclk_peri", "hclk_peri_src", 0,
+			RK2928_CLKGATE_CON(2), 2, GFLAGS),
+
+	/* PD_TIMER */
+	COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(2), 4, 1, DFLAGS,
+			RK2928_CLKGATE_CON(1), 0, GFLAGS),
+	COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(2), 5, 1, DFLAGS,
+			RK2928_CLKGATE_CON(1), 1, GFLAGS),
+	COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(2), 6, 1, DFLAGS,
+			RK2928_CLKGATE_CON(2), 4, GFLAGS),
+	COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, CLK_IGNORE_UNUSED,
+			RK2928_CLKSEL_CON(2), 7, 1, DFLAGS,
+			RK2928_CLKGATE_CON(2), 5, GFLAGS),
+
+	/* PD_UART */
+	MUX(0, "uart_pll_clk", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
+			RK2928_CLKSEL_CON(13), 10, 2, MFLAGS),
+	COMPOSITE_NOMUX(0, "uart0_src", "uart_pll_clk", 0,
+			RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(1), 8, GFLAGS),
+	COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0,
+			RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(1), 8, GFLAGS),
+	COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0,
+			RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(1), 8, GFLAGS),
+	COMPOSITE_FRAC(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(17), 0,
+			RK2928_CLKGATE_CON(1), 9, GFLAGS),
+	COMPOSITE_FRAC(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(18), 0,
+			RK2928_CLKGATE_CON(1), 11, GFLAGS),
+	COMPOSITE_FRAC(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(19), 0,
+			RK2928_CLKGATE_CON(1), 13, GFLAGS),
+	MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(13), 8, 2, MFLAGS),
+	MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(14), 8, 2, MFLAGS),
+	MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(15), 8, 2, MFLAGS),
+
+	/* PD_VIDEO */
+	COMPOSITE(0, "aclk_vcodec", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS,
+			RK2928_CLKGATE_CON(3), 11, GFLAGS),
+
+	COMPOSITE(0, "aclk_hvec", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(20), 0, 2, MFLAGS, 2, 5, DFLAGS,
+			RK2928_CLKGATE_CON(10), 6, GFLAGS),
+
+	/* PD_VIO */
+	COMPOSITE(0, "aclk_disp1_pre", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS,
+			RK2928_CLKGATE_CON(1), 4, GFLAGS),
+	COMPOSITE(0, "hclk_disp_pre", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS,
+			RK2928_CLKGATE_CON(0), 11, GFLAGS),
+	COMPOSITE(DCLK_LCDC, "dclk_lcdc", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS,
+			RK2928_CLKGATE_CON(3), 2, GFLAGS),
+
+	/* MMC */
+	COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0,
+			RK2928_CLKSEL_CON(12), 8, 2, DFLAGS,
+			RK2928_CLKGATE_CON(2), 11, GFLAGS),
+	DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0,
+			RK2928_CLKSEL_CON(11), 0, 7, DFLAGS),
+
+	COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0,
+			RK2928_CLKSEL_CON(12), 10, 2, DFLAGS,
+			RK2928_CLKGATE_CON(2), 13, GFLAGS),
+	DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0,
+			RK2928_CLKSEL_CON(11), 8, 7, DFLAGS),
+
+	COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0,
+			RK2928_CLKSEL_CON(12), 12, 2, MFLAGS, 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(2), 14, GFLAGS),
+
+	MMC(SCLK_SDMMC_DRV,    "sdmmc_drv",    "sclk_sdmmc", RK3036_SDMMC_CON0, 1),
+	MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3036_SDMMC_CON1, 0),
+
+	MMC(SCLK_SDIO_DRV,     "sdio_drv",     "sclk_sdio",  RK3036_SDIO_CON0, 1),
+	MMC(SCLK_SDIO_SAMPLE,  "sdio_sample",  "sclk_sdio",  RK3036_SDIO_CON1, 0),
+
+	MMC(SCLK_EMMC_DRV,     "emmc_drv",     "sclk_emmc",  RK3036_EMMC_CON0,  1),
+	MMC(SCLK_EMMC_SAMPLE,  "emmc_sample",  "sclk_emmc",  RK3036_EMMC_CON1,  0),
+
+	/* I2S */
+	COMPOSITE(0, "i2s_src", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(3), 14, 2, MFLAGS, 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(0), 9, GFLAGS),
+	COMPOSITE_FRAC(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(7), 0,
+			RK2928_CLKGATE_CON(0), 10, GFLAGS),
+	MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(3), 8, 2, MFLAGS),
+	COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0,
+			RK2928_CLKSEL_CON(3), 12, 1, MFLAGS,
+			RK2928_CLKGATE_CON(0), 13, GFLAGS),
+	GATE(SCLK_I2S, "sclk_i2s", "i2s_pre", CLK_SET_RATE_PARENT,
+			RK2928_CLKGATE_CON(0), 14, GFLAGS),
+
+	/* SPDIF */
+	COMPOSITE(0, "spdif_src", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(5), 10, 2, MFLAGS, 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(2), 10, GFLAGS),
+	COMPOSITE_FRAC(0, "spdif_frac", "spdif_src", 0,
+			RK2928_CLKSEL_CON(9), 0,
+			RK2928_CLKGATE_CON(2), 12, GFLAGS),
+	MUX(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0,
+			RK2928_CLKSEL_CON(5), 8, 2, MFLAGS),
+
+	GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", CLK_IGNORE_UNUSED,
+			RK2928_CLKGATE_CON(1), 5, GFLAGS),
+
+	COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(34), 8, 2, MFLAGS, 0, 5, DFLAGS,
+			RK2928_CLKGATE_CON(3), 13, GFLAGS),
+
+	COMPOSITE(SCLK_SPI, "sclk_spi", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(2), 9, GFLAGS),
+
+	COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS,
+			RK2928_CLKGATE_CON(10), 4, GFLAGS),
+
+	COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
+			RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS,
+			RK2928_CLKGATE_CON(10), 5, GFLAGS),
+
+	COMPOSITE_NOGATE(0, "mac_pll_src", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 4, 5, DFLAGS),
+	/* for clk_mac_ref & clk_mac_refout */
+	MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT,
+			RK2928_CLKSEL_CON(21), 3, 1, MFLAGS),
+
+	COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0,
+			RK2928_CLKSEL_CON(21), 9, 5, DFLAGS,
+			RK2928_CLKGATE_CON(2), 6, GFLAGS),
+
+	/* HDMI */
+	/* total clks: pin_sys_clk / pin_sck / pin_mclk / pin_vclk / pin_vclk_pllref */
+	/* the same with dclk_lcdc */
+	COMPOSITE(0, "dclk_hdmi_src", mux_pll_src_3plls_p, 0,
+			RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS,
+			RK2928_CLKGATE_CON(3), 2, GFLAGS),
+	/* hdmi dclk from dclk_lcdc directly */
+	MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0,
+			RK2928_CLKSEL_CON(31), 0, 1, MFLAGS),
+
+	/*
+	 * Clock-Architecture Diagram 3
+	 */
+
+	/* aclk_cpu gates */
+	GATE(0, "sclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS),
+	GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS),
+
+	/* hclk_cpu gates */
+	GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS),
+
+	/* pclk_cpu gates */
+	GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS),
+	GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS),
+	GATE(PCLK_ACODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS),
+	GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS),
+
+	/* aclk_vio gates */
+	GATE(ACLK_VIO, "aclk_vio", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(6), 13, GFLAGS),
+	GATE(ACLK_LCDC, "aclk_lcdc", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS),
+
+	GATE(HCLK_VIO_BUS, "hclk_vio_bus", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(6), 12, GFLAGS),
+	GATE(HCLK_LCDC, "hclk_lcdc", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(9), 5, GFLAGS),
+
+	/* aclk_video gates */
+	GATE(HCLK_LCDC, "hclk_vcodec", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(3), 12, GFLAGS),
+
+	/* xin24m gates */
+	GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK2928_CLKGATE_CON(10), 0, GFLAGS),
+	GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK2928_CLKGATE_CON(10), 1, GFLAGS),
+
+	/* aclk_peri gates */
+	GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS),
+	GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS),
+	GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS),
+	GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS),
+
+	/* hclk_peri gates */
+	GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS),
+	GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS),
+	GATE(0, "hclk_peri_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS),
+	GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS),
+	GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS),
+	GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS),
+	GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS),
+	GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS),
+	GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS),
+	GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS),
+	GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS),
+	GATE(0, "hclk_mac", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 15, GFLAGS),
+
+	/* pclk_peri gates */
+	GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS),
+	GATE(0, "pclk_efuse", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 2, GFLAGS),
+	GATE(PCLK_TIMER, "pclk_timer0", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 7, GFLAGS),
+	GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS),
+	GATE(PCLK_SPI, "pclk_spi", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS),
+	GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS),
+	GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS),
+	GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS),
+	GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS),
+	GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS),
+	GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS),
+	GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS),
+	GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS),
+	GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS),
+	GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS),
+};
+
+static const char *const rk3036_critical_clocks[] __initconst = {
+	"aclk_cpu",
+	"aclk_peri",
+	"hclk_peri",
+	"pclk_peri",
+};
+
+static void __init rk3036_clk_init(struct device_node *np)
+{
+	void __iomem *reg_base;
+	struct clk *clk;
+
+	reg_base = of_iomap(np, 0);
+	if (!reg_base) {
+		pr_err("%s: could not map cru region\n", __func__);
+		return;
+	}
+
+	rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
+
+	/* xin12m is created by an cru-internal divider */
+	clk = clk_register_fixed_factor(NULL, "xin12m", "xin24m", 0, 1, 2);
+	if (IS_ERR(clk))
+		pr_warn("%s: could not register clock xin12m: %ld\n",
+			__func__, PTR_ERR(clk));
+
+	clk = clk_register_fixed_factor(NULL, "usb480m", "xin24m", 0, 20, 1);
+	if (IS_ERR(clk))
+		pr_warn("%s: could not register clock usb480m: %ld\n",
+			__func__, PTR_ERR(clk));
+
+	clk = clk_register_fixed_factor(NULL, "ddrphy", "ddrphy2x", 0, 1, 2);
+	if (IS_ERR(clk))
+		pr_warn("%s: could not register clock ddrphy: %ld\n",
+			__func__, PTR_ERR(clk));
+
+	clk = clk_register_fixed_factor(NULL, "hclk_vcodec_pre",
+					"aclk_vcodec", 0, 1, 4);
+	if (IS_ERR(clk))
+		pr_warn("%s: could not register clock hclk_vcodec_pre: %ld\n",
+			__func__, PTR_ERR(clk));
+
+	clk = clk_register_fixed_factor(NULL, "sclk_macref_out",
+					"hclk_peri_src", 0, 1, 2);
+	if (IS_ERR(clk))
+		pr_warn("%s: could not register clock sclk_macref_out: %ld\n",
+			__func__, PTR_ERR(clk));
+
+	rockchip_clk_register_plls(rk3036_pll_clks,
+				   ARRAY_SIZE(rk3036_pll_clks),
+				   RK3036_GRF_SOC_STATUS0);
+	rockchip_clk_register_branches(rk3036_clk_branches,
+				  ARRAY_SIZE(rk3036_clk_branches));
+	rockchip_clk_protect_critical(rk3036_critical_clocks,
+				      ARRAY_SIZE(rk3036_critical_clocks));
+
+	rockchip_clk_register_armclk(ARMCLK, "armclk",
+			mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
+			&rk3036_cpuclk_data, rk3036_cpuclk_rates,
+			ARRAY_SIZE(rk3036_cpuclk_rates));
+
+	rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
+				  ROCKCHIP_SOFTRST_HIWORD_MASK);
+
+	rockchip_register_restart_notifier(RK2928_GLB_SRST_FST);
+}
+CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init);
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
index dc8ecb2..4b79f34 100644
--- a/drivers/clk/rockchip/clk.h
+++ b/drivers/clk/rockchip/clk.h
@@ -2,6 +2,9 @@ 
  * Copyright (c) 2014 MundoReader S.L.
  * Author: Heiko Stuebner <heiko@sntech.de>
  *
+ * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
+ * Author: Xing Zheng <zhengxing@rock-chips.com>
+ *
  * based on
  *
  * samsung/clk.h
@@ -40,6 +43,13 @@  struct clk;
 #define RK2928_SOFTRST_CON(x)	((x) * 0x4 + 0x110)
 #define RK2928_MISC_CON		0x134
 
+#define RK3036_SDMMC_CON0		0x144
+#define RK3036_SDMMC_CON1		0x148
+#define RK3036_SDIO_CON0		0x14c
+#define RK3036_SDIO_CON1		0x150
+#define RK3036_EMMC_CON0		0x154
+#define RK3036_EMMC_CON1		0x158
+
 #define RK3288_PLL_CON(x)		RK2928_PLL_CON(x)
 #define RK3288_MODE_CON			0x50
 #define RK3288_CLKSEL_CON(x)		((x) * 0x4 + 0x60)
@@ -74,9 +84,22 @@  struct clk;
 #define RK3368_EMMC_CON1		0x41c
 
 enum rockchip_pll_type {
+	pll_rk3036,
 	pll_rk3066,
 };
 
+#define RK3036_PLL_RATE(_rate, _refdiv, _fbdiv, _postdiv1,	\
+			_postdiv2, _dsmpd, _frac)		\
+{								\
+	.rate	= _rate##U,					\
+	.fbdiv = _fbdiv,					\
+	.postdiv1 = _postdiv1,					\
+	.refdiv = _refdiv,					\
+	.postdiv2 = _postdiv2,					\
+	.dsmpd = _dsmpd,					\
+	.frac = _frac,						\
+}
+
 #define RK3066_PLL_RATE(_rate, _nr, _nf, _no)	\
 {						\
 	.rate	= _rate##U,			\
@@ -101,6 +124,13 @@  struct rockchip_pll_rate_table {
 	unsigned int nf;
 	unsigned int no;
 	unsigned int nb;
+	/* for RK3036 */
+	unsigned int fbdiv;
+	unsigned int postdiv1;
+	unsigned int refdiv;
+	unsigned int postdiv2;
+	unsigned int dsmpd;
+	unsigned int frac;
 };
 
 /**