Commit f31a3433 authored by Jun Nie's avatar Jun Nie Committed by Stephen Boyd
Browse files

clk: zx: register ZX296718 clocks 



The ZX296718 clocks are statically listed and registered. More
clock will be added later.

Signed-off-by: default avatarJun Nie <jun.nie@linaro.org>
Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
parent e9f26231

Documentation/devicetree/bindings/clock/zx296718-clk.txt

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Device Tree Clock bindings for ZTE zx296718



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,zx296718-topcrm":

		zx296718 top clock selection, divider and gating



	"zte,zx296718-lsp0crm" and

	"zte,zx296718-lsp1crm":

		zx296718 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/zx296718-clock.h

for the full list of zx296718 clock IDs.





topclk: topcrm@1461000 {

        compatible = "zte,zx296718-topcrm-clk";

        reg = <0x01461000 0x1000>;

        #clock-cells = <1>;

};



usbphy0:usb-phy0 {

	compatible = "zte,zx296718-usb-phy";

	#phy-cells = <0>;

	clocks = <&topclk USB20_PHY_CLK>;

	clock-names = "phyclk";

	status = "okay";

};

drivers/clk/zte/Makefile

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obj-y := clk.o

obj-$(CONFIG_SOC_ZX296702) += clk-zx296702.o

obj-$(CONFIG_ARCH_ZX) += clk-zx296718.o

drivers/clk/zte/clk-zx296718.c

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File added.

Preview size limit exceeded, changes collapsed.

drivers/clk/zte/clk.h

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@@ -12,6 +12,26 @@ 
#include <linux/clk-provider.h>

#include <linux/spinlock.h>



#define PNAME(x) static const char *x[]



#define CLK_HW_INIT(_name, _parent, _ops, _flags)			\

	&(struct clk_init_data) {					\

		.flags		= _flags,				\

		.name		= _name,				\

		.parent_names	= (const char *[]) { _parent },		\

		.num_parents	= 1,					\

		.ops		= _ops,					\

	}



#define CLK_HW_INIT_PARENTS(_name, _parents, _ops, _flags)		\

	&(struct clk_init_data) {					\

		.flags		= _flags,				\

		.name		= _name,				\

		.parent_names	= _parents,				\

		.num_parents	= ARRAY_SIZE(_parents),			\

		.ops		= _ops,					\

	}



struct zx_pll_config {

	unsigned long rate;

	u32 cfg0;
@@ -28,6 +48,111 @@ struct clk_zx_pll { 
	u8 lock_bit;		/* pll lock flag bit */

};



#define PLL_RATE(_rate, _cfg0, _cfg1)	\

{					\

	.rate = _rate,			\

	.cfg0 = _cfg0,			\

	.cfg1 = _cfg1,			\

}



#define ZX_PLL(_name, _parent, _reg, _table, _pd, _lock)		\

{									\

	.reg_base	= (void __iomem *) _reg,			\

	.lookup_table	= _table,					\

	.count		= ARRAY_SIZE(_table),				\

	.pd_bit		= _pd,						\

	.lock_bit	= _lock,					\

	.hw.init	 = CLK_HW_INIT(_name, _parent, &zx_pll_ops,	\

				CLK_GET_RATE_NOCACHE),			\

}



#define ZX296718_PLL(_name, _parent, _reg, _table)			\

ZX_PLL(_name, _parent, _reg, _table, 0, 30)



struct zx_clk_gate {

	struct clk_gate gate;

	u16		id;

};



#define GATE(_id, _name, _parent, _reg, _bit, _flag, _gflags)		\

{									\

	.gate = {							\

		.reg = (void __iomem *) _reg,				\

		.bit_idx = (_bit),					\

		.flags = _gflags,					\

		.lock = &clk_lock,					\

		.hw.init = CLK_HW_INIT(_name,				\

					_parent,			\

					&clk_gate_ops,			\

					_flag | CLK_IGNORE_UNUSED),	\

	},								\

	.id	= _id,							\

}



struct zx_clk_fixed_factor {

	struct clk_fixed_factor factor;

	u16	id;

};



#define FFACTOR(_id, _name, _parent, _mult, _div, _flag)		\

{									\

	.factor = {							\

		.div		= _div,					\

		.mult		= _mult,				\

		.hw.init	= CLK_HW_INIT(_name,			\

					      _parent,			\

					      &clk_fixed_factor_ops,	\

					      _flag),			\

	},								\

	.id = _id,							\

}



struct zx_clk_mux {

	struct clk_mux mux;

	u16	id;

};



#define MUX_F(_id, _name, _parent, _reg, _shift, _width, _flag, _mflag)	\

{									\

	.mux = {							\

		.reg		= (void __iomem *) _reg,		\

		.mask		= BIT(_width) - 1,			\

		.shift		= _shift,				\

		.flags		= _mflag,				\

		.lock		= &clk_lock,				\

		.hw.init	= CLK_HW_INIT_PARENTS(_name,		\

						      _parent,		\

						      &clk_mux_ops,	\

						      _flag),		\

	},								\

	.id = _id,							\

}



#define MUX(_id, _name, _parent, _reg, _shift, _width)			\

MUX_F(_id, _name, _parent, _reg, _shift, _width, 0, 0)



struct zx_clk_div {

	struct clk_divider div;

	u16	id;

};



#define DIV_T(_id, _name, _parent, _reg, _shift, _width, _flag, _table)	\

{									\

	.div = {							\

		.reg		= (void __iomem *) _reg,		\

		.shift		= _shift,				\

		.width		= _width,				\

		.flags		= 0,					\

		.table		= _table,				\

		.lock		= &clk_lock,				\

		.hw.init	= CLK_HW_INIT(_name,			\

					      _parent,			\

					      &clk_divider_ops,		\

					      _flag),			\

	},								\

	.id = _id,							\

}



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);

include/dt-bindings/clock/zx296718-clock.h

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/*

 * Copyright (C) 2015 - 2016 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_ZX296718_H

#define __DT_BINDINGS_CLOCK_ZX296718_H



/* PLL */

#define ZX296718_PLL_CPU	1

#define ZX296718_PLL_MAC	2

#define ZX296718_PLL_MM0	3

#define ZX296718_PLL_MM1	4

#define ZX296718_PLL_VGA	5

#define ZX296718_PLL_DDR	6

#define ZX296718_PLL_AUDIO	7

#define ZX296718_PLL_HSIC	8

#define CPU_DBG_GATE		9

#define A72_GATE		10

#define CPU_PERI_GATE		11

#define A53_GATE		12

#define DDR1_GATE		13

#define DDR0_GATE		14

#define SD1_WCLK		15

#define SD1_AHB			16

#define SD0_WCLK		17

#define SD0_AHB			18

#define EMMC_WCLK		19

#define EMMC_NAND_AXI		20

#define NAND_WCLK		21

#define EMMC_NAND_AHB		22

#define LSP1_148M5		23

#define LSP1_99M		24

#define LSP1_24M		25

#define LSP0_74M25		26

#define LSP0_32K		27

#define LSP0_148M5		28

#define LSP0_99M		29

#define LSP0_24M		30

#define DEMUX_AXI		31

#define DEMUX_APB		32

#define DEMUX_148M5		33

#define DEMUX_108M		34

#define AUDIO_APB		35

#define AUDIO_99M		36

#define AUDIO_24M		37

#define AUDIO_16M384		38

#define AUDIO_32K		39

#define WDT_WCLK		40

#define TIMER_WCLK		41

#define VDE_ACLK		42

#define VCE_ACLK		43

#define HDE_ACLK		44

#define GPU_ACLK		45

#define SAPPU_ACLK		46

#define SAPPU_WCLK		47

#define VOU_ACLK		48

#define VOU_MAIN_WCLK		49

#define VOU_AUX_WCLK		50

#define VOU_PPU_WCLK		51

#define MIPI_CFG_CLK		52

#define VGA_I2C_WCLK		53

#define MIPI_REF_CLK		54

#define HDMI_OSC_CEC		55

#define HDMI_OSC_CLK		56

#define HDMI_XCLK		57

#define VIU_M0_ACLK		58

#define VIU_M1_ACLK		59

#define VIU_WCLK		60

#define VIU_JPEG_WCLK		61

#define VIU_CFG_CLK		62

#define TS_SYS_WCLK		63

#define TS_SYS_108M		64

#define USB20_HCLK		65

#define USB20_PHY_CLK		66

#define USB21_HCLK		67

#define USB21_PHY_CLK		68

#define GMAC_RMIICLK		69

#define GMAC_PCLK		70

#define GMAC_ACLK		71

#define GMAC_RFCLK		72

#define TEMPSENSOR_GATE		73



#define TOP_NR_CLKS		74





#define LSP0_TIMER3_PCLK	1

#define LSP0_TIMER3_WCLK	2

#define LSP0_TIMER4_PCLK	3

#define LSP0_TIMER4_WCLK	4

#define LSP0_TIMER5_PCLK	5

#define LSP0_TIMER5_WCLK	6

#define LSP0_UART3_PCLK		7

#define LSP0_UART3_WCLK		8

#define LSP0_UART1_PCLK		9

#define LSP0_UART1_WCLK		10

#define LSP0_UART2_PCLK		11

#define LSP0_UART2_WCLK		12

#define LSP0_SPIFC0_PCLK	13

#define LSP0_SPIFC0_WCLK	14

#define LSP0_I2C4_PCLK		15

#define LSP0_I2C4_WCLK		16

#define LSP0_I2C5_PCLK		17

#define LSP0_I2C5_WCLK		18

#define LSP0_SSP0_PCLK		19

#define LSP0_SSP0_WCLK		20

#define LSP0_SSP1_PCLK		21

#define LSP0_SSP1_WCLK		22

#define LSP0_USIM_PCLK		23

#define LSP0_USIM_WCLK		24

#define LSP0_GPIO_PCLK		25

#define LSP0_GPIO_WCLK		26

#define LSP0_I2C3_PCLK		27

#define LSP0_I2C3_WCLK		28



#define LSP0_NR_CLKS		29





#define LSP1_UART4_PCLK		1

#define LSP1_UART4_WCLK		2

#define LSP1_UART5_PCLK		3

#define LSP1_UART5_WCLK		4

#define LSP1_PWM_PCLK		5

#define LSP1_PWM_WCLK		6

#define LSP1_I2C2_PCLK		7

#define LSP1_I2C2_WCLK		8

#define LSP1_SSP2_PCLK		9

#define LSP1_SSP2_WCLK		10

#define LSP1_SSP3_PCLK		11

#define LSP1_SSP3_WCLK		12

#define LSP1_SSP4_PCLK		13

#define LSP1_SSP4_WCLK		14

#define LSP1_USIM1_PCLK		15

#define LSP1_USIM1_WCLK		16



#define LSP1_NR_CLKS		17





#define AUDIO_I2S0_WCLK		1

#define AUDIO_I2S0_PCLK		2

#define AUDIO_I2S1_WCLK		3

#define AUDIO_I2S1_PCLK		4

#define AUDIO_I2S2_WCLK		5

#define AUDIO_I2S2_PCLK		6

#define AUDIO_I2S3_WCLK		7

#define AUDIO_I2S3_PCLK		8

#define AUDIO_I2C0_WCLK		9

#define AUDIO_I2C0_PCLK		10

#define AUDIO_SPDIF0_WCLK	11

#define AUDIO_SPDIF0_PCLK	12

#define AUDIO_SPDIF1_WCLK	13

#define AUDIO_SPDIF1_PCLK	14

#define AUDIO_TIMER_WCLK	15

#define AUDIO_TIMER_PCLK	16

#define AUDIO_TDM_WCLK		17

#define AUDIO_TDM_PCLK		18

#define AUDIO_TS_PCLK		19



#define AUDIO_NR_CLKS		20



#endif

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