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Commit 5efaf090 authored by Zhangfei Gao's avatar Zhangfei Gao Committed by Haojian Zhuang
Browse files

clk: hisi: add clk-hix5hd2.c 



Signed-off-by: default avatarHaifeng Yan <haifeng.yan@linaro.org>
Signed-off-by: default avatarZhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: default avatarHaojian Zhuang <haojian.zhuang@linaro.org>
parent 8b9dcb6c

Documentation/devicetree/bindings/clock/hix5hd2-clock.txt

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* Hisilicon Hix5hd2 Clock Controller



The hix5hd2 clock controller generates and supplies clock to various

controllers within the hix5hd2 SoC.



Required Properties:



- compatible: should be "hisilicon,hix5hd2-clock"

- reg: Address and length of the register set

- #clock-cells: Should be <1>



Each clock is assigned an identifier and client nodes use this identifier

to specify the clock which they consume.



All these identifier could be found in <dt-bindings/clock/hix5hd2-clock.h>.



Examples:

	clock: clock@f8a22000 {

		compatible = "hisilicon,hix5hd2-clock";

		reg = <0xf8a22000 0x1000>;

		#clock-cells = <1>;

	};



	uart0: uart@f8b00000 {

		compatible = "arm,pl011", "arm,primecell";

		reg = <0xf8b00000 0x1000>;

		interrupts = <0 49 4>;

		clocks = <&clock HIX5HD2_FIXED_83M>;

		clock-names = "apb_pclk";

		status = "disabled";

	};

drivers/clk/Makefile

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@@ -33,6 +33,7 @@ obj-$(CONFIG_COMMON_CLK_AT91) += at91/ 
obj-$(CONFIG_ARCH_BCM_MOBILE)		+= bcm/

obj-$(CONFIG_ARCH_HI3xxx)		+= hisilicon/

obj-$(CONFIG_ARCH_HIP04)		+= hisilicon/

obj-$(CONFIG_ARCH_HIX5HD2)		+= hisilicon/

obj-$(CONFIG_COMMON_CLK_KEYSTONE)	+= keystone/

ifeq ($(CONFIG_COMMON_CLK), y)

obj-$(CONFIG_ARCH_MMP)			+= mmp/

drivers/clk/hisilicon/Makefile

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@@ -6,3 +6,4 @@ 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

drivers/clk/hisilicon/clk-hix5hd2.c

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/*

 * 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 "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[] __initconst = {

		"24m", "150m", "200m", "100m", "75m", };

static u32 sfc_mux_table[] = {0, 4, 5, 6, 7};



static const char *sdio1_mux_p[] __initconst = {

		"75m", "100m", "50m", "15m", };

static u32 sdio1_mux_table[] = {0, 1, 2, 3};



static const char *fephy_mux_p[] __initconst = { "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", sdio1_mux_p, ARRAY_SIZE(sdio1_mux_p),

		CLK_SET_RATE_PARENT, 0xa0, 8, 2, 0, sdio1_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, },

	/*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, },

};



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);

}



CLK_OF_DECLARE(hix5hd2_clk, "hisilicon,hix5hd2-clock", hix5hd2_clk_init);

include/dt-bindings/clock/hix5hd2-clock.h

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/*

 * 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.

 */



#ifndef __DTS_HIX5HD2_CLOCK_H

#define __DTS_HIX5HD2_CLOCK_H



/* fixed rate */

#define HIX5HD2_FIXED_1200M		1

#define HIX5HD2_FIXED_400M		2

#define HIX5HD2_FIXED_48M		3

#define HIX5HD2_FIXED_24M		4

#define HIX5HD2_FIXED_600M		5

#define HIX5HD2_FIXED_300M		6

#define HIX5HD2_FIXED_75M		7

#define HIX5HD2_FIXED_200M		8

#define HIX5HD2_FIXED_100M		9

#define HIX5HD2_FIXED_40M		10

#define HIX5HD2_FIXED_150M		11

#define HIX5HD2_FIXED_1728M		12

#define HIX5HD2_FIXED_28P8M		13

#define HIX5HD2_FIXED_432M		14

#define HIX5HD2_FIXED_345P6M		15

#define HIX5HD2_FIXED_288M		16

#define HIX5HD2_FIXED_60M		17

#define HIX5HD2_FIXED_750M		18

#define HIX5HD2_FIXED_500M		19

#define HIX5HD2_FIXED_54M		20

#define HIX5HD2_FIXED_27M		21

#define HIX5HD2_FIXED_1500M		22

#define HIX5HD2_FIXED_375M		23

#define HIX5HD2_FIXED_187M		24

#define HIX5HD2_FIXED_250M		25

#define HIX5HD2_FIXED_125M		26

#define HIX5HD2_FIXED_2P02M		27

#define HIX5HD2_FIXED_50M		28

#define HIX5HD2_FIXED_25M		29

#define HIX5HD2_FIXED_83M		30



/* mux clocks */

#define HIX5HD2_SFC_MUX			64

#define HIX5HD2_MMC_MUX			65

#define HIX5HD2_FEPHY_MUX		66



/* gate clocks */

#define HIX5HD2_SFC_RST			128

#define HIX5HD2_SFC_CLK			129

#define HIX5HD2_MMC_CIU_CLK		130

#define HIX5HD2_MMC_BIU_CLK		131

#define HIX5HD2_MMC_CIU_RST		132



#define HIX5HD2_NR_CLKS			256

#endif	/* __DTS_HIX5HD2_CLOCK_H */