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Commit 5785d6e6 authored by Chanwoo Choi's avatar Chanwoo Choi Committed by Sylwester Nawrocki
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clk: samsung: exynos5433: Add clocks for CMU_BUS{0|1|2} domains 



This patch adds the mux/divider/gate clocks for CMU_BUS{0|1|2} domains
which contain global data buses clocked at up the 400MHz. These blocks
transfer data between DRAM and various sub-blocks. These clock domains
also contain global peripheral buses clocked at 67/111/200/222/266/333/400
MHz and used for register accesses.

Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Acked-by: default avatarInki Dae <inki.dae@samsung.com>
Reviewed-by: default avatarPankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
parent 2e997c03

drivers/clk/samsung/clk-exynos5433.c

+187 −0
Original line number Diff line number Diff line
@@ -438,6 +438,14 @@ static struct samsung_div_clock top_div_clks[] __initdata = { 
	DIV(CLK_DIV_ACLK_PERIS_66_A, "div_aclk_peris_66_a",

			"mout_bus_pll_user", DIV_TOP3, 0, 3),



	/* DIV_TOP4 */

	DIV(CLK_DIV_ACLK_G3D_400, "div_aclk_g3d_400", "mout_bus_pll_user",

			DIV_TOP4, 8, 3),

	DIV(CLK_DIV_ACLK_BUS0_400, "div_aclk_bus0_400", "mout_aclk_bus0_400",

			DIV_TOP4, 4, 3),

	DIV(CLK_DIV_ACLK_BUS1_400, "div_aclk_bus1_400", "mout_bus_pll_user",

			DIV_TOP4, 0, 3),



	/* DIV_TOP_FSYS0 */

	DIV(CLK_DIV_SCLK_MMC1_B, "div_sclk_mmc1_b", "div_sclk_mmc1_a",

			DIV_TOP_FSYS0, 16, 8),
@@ -501,6 +509,23 @@ static struct samsung_div_clock top_div_clks[] __initdata = { 


static struct samsung_gate_clock top_gate_clks[] __initdata = {

	/* ENABLE_ACLK_TOP */

	GATE(CLK_ACLK_G3D_400, "aclk_g3d_400", "div_aclk_g3d_400",

			ENABLE_ACLK_TOP, 30, 0, 0),

	GATE(CLK_ACLK_IMEM_SSX_266, "aclk_imem_ssx_266",

			"div_aclk_imem_sssx_266", ENABLE_ACLK_TOP,

			29, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUS0_400, "aclk_bus0_400", "div_aclk_bus0_400",

			ENABLE_ACLK_TOP, 26,

			CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0),

	GATE(CLK_ACLK_BUS1_400, "aclk_bus1_400", "div_aclk_bus1_400",

			ENABLE_ACLK_TOP, 25,

			CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0),

	GATE(CLK_ACLK_IMEM_200, "aclk_imem_200", "div_aclk_imem_266",

			ENABLE_ACLK_TOP, 24,

			CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0),

	GATE(CLK_ACLK_IMEM_266, "aclk_imem_266", "div_aclk_imem_200",

			ENABLE_ACLK_TOP, 23,

			CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0),

	GATE(CLK_ACLK_PERIC_66, "aclk_peric_66", "div_aclk_peric_66_b",

			ENABLE_ACLK_TOP, 22,

			CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, 0),
@@ -2631,3 +2656,165 @@ static void __init exynos5433_cmu_aud_init(struct device_node *np) 
}

CLK_OF_DECLARE(exynos5433_cmu_aud, "samsung,exynos5433-cmu-aud",

		exynos5433_cmu_aud_init);





/*

 * Register offset definitions for CMU_BUS{0|1|2}

 */

#define DIV_BUS				0x0600

#define DIV_STAT_BUS			0x0700

#define ENABLE_ACLK_BUS			0x0800

#define ENABLE_PCLK_BUS			0x0900

#define ENABLE_IP_BUS0			0x0b00

#define ENABLE_IP_BUS1			0x0b04



#define MUX_SEL_BUS2			0x0200	/* Only for CMU_BUS2 */

#define MUX_ENABLE_BUS2			0x0300	/* Only for CMU_BUS2 */

#define MUX_STAT_BUS2			0x0400	/* Only for CMU_BUS2 */



/* list of all parent clock list */

PNAME(mout_aclk_bus2_400_p)	= { "oscclk", "aclk_bus2_400", };



#define CMU_BUS_COMMON_CLK_REGS	\

	DIV_BUS,		\

	DIV_STAT_BUS,		\

	ENABLE_ACLK_BUS,	\

	ENABLE_PCLK_BUS,	\

	ENABLE_IP_BUS0,		\

	ENABLE_IP_BUS1



static unsigned long bus01_clk_regs[] __initdata = {

	CMU_BUS_COMMON_CLK_REGS,

};



static unsigned long bus2_clk_regs[] __initdata = {

	MUX_SEL_BUS2,

	MUX_ENABLE_BUS2,

	MUX_STAT_BUS2,

	CMU_BUS_COMMON_CLK_REGS,

};



static struct samsung_div_clock bus0_div_clks[] __initdata = {

	/* DIV_BUS0 */

	DIV(CLK_DIV_PCLK_BUS_133, "div_pclk_bus0_133", "aclk_bus0_400",

			DIV_BUS, 0, 3),

};



/* CMU_BUS0 clocks */

static struct samsung_gate_clock bus0_gate_clks[] __initdata = {

	/* ENABLE_ACLK_BUS0 */

	GATE(CLK_ACLK_AHB2APB_BUSP, "aclk_ahb2apb_bus0p", "div_pclk_bus0_133",

			ENABLE_ACLK_BUS, 4, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUSNP_133, "aclk_bus0np_133", "div_pclk_bus0_133",

			ENABLE_ACLK_BUS, 2, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUSND_400, "aclk_bus0nd_400", "aclk_bus0_400",

			ENABLE_ACLK_BUS, 0, CLK_IGNORE_UNUSED, 0),



	/* ENABLE_PCLK_BUS0 */

	GATE(CLK_PCLK_BUSSRVND_133, "pclk_bus0srvnd_133", "div_pclk_bus0_133",

			ENABLE_PCLK_BUS, 2, 0, 0),

	GATE(CLK_PCLK_PMU_BUS, "pclk_pmu_bus0", "div_pclk_bus0_133",

			ENABLE_PCLK_BUS, 1, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_PCLK_SYSREG_BUS, "pclk_sysreg_bus0", "div_pclk_bus0_133",

			ENABLE_PCLK_BUS, 0, CLK_IGNORE_UNUSED, 0),

};



/* CMU_BUS1 clocks */

static struct samsung_div_clock bus1_div_clks[] __initdata = {

	/* DIV_BUS1 */

	DIV(CLK_DIV_PCLK_BUS_133, "div_pclk_bus1_133", "aclk_bus1_400",

			DIV_BUS, 0, 3),

};



static struct samsung_gate_clock bus1_gate_clks[] __initdata = {

	/* ENABLE_ACLK_BUS1 */

	GATE(CLK_ACLK_AHB2APB_BUSP, "aclk_ahb2apb_bus1p", "div_pclk_bus1_133",

			ENABLE_ACLK_BUS, 4, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUSNP_133, "aclk_bus1np_133", "div_pclk_bus1_133",

			ENABLE_ACLK_BUS, 2, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUSND_400, "aclk_bus1nd_400", "aclk_bus1_400",

			ENABLE_ACLK_BUS, 0, CLK_IGNORE_UNUSED, 0),



	/* ENABLE_PCLK_BUS1 */

	GATE(CLK_PCLK_BUSSRVND_133, "pclk_bus1srvnd_133", "div_pclk_bus1_133",

			ENABLE_PCLK_BUS, 2, 0, 0),

	GATE(CLK_PCLK_PMU_BUS, "pclk_pmu_bus1", "div_pclk_bus1_133",

			ENABLE_PCLK_BUS, 1, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_PCLK_SYSREG_BUS, "pclk_sysreg_bus1", "div_pclk_bus1_133",

			ENABLE_PCLK_BUS, 0, CLK_IGNORE_UNUSED, 0),

};



/* CMU_BUS2 clocks */

static struct samsung_mux_clock bus2_mux_clks[] __initdata = {

	/* MUX_SEL_BUS2 */

	MUX(CLK_MOUT_ACLK_BUS2_400_USER, "mout_aclk_bus2_400_user",

			mout_aclk_bus2_400_p, MUX_SEL_BUS2, 0, 1),

};



static struct samsung_div_clock bus2_div_clks[] __initdata = {

	/* DIV_BUS2 */

	DIV(CLK_DIV_PCLK_BUS_133, "div_pclk_bus2_133",

			"mout_aclk_bus2_400_user", DIV_BUS, 0, 3),

};



static struct samsung_gate_clock bus2_gate_clks[] __initdata = {

	/* ENABLE_ACLK_BUS2 */

	GATE(CLK_ACLK_AHB2APB_BUSP, "aclk_ahb2apb_bus2p", "div_pclk_bus2_133",

			ENABLE_ACLK_BUS, 3, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUSNP_133, "aclk_bus2np_133", "div_pclk_bus2_133",

			ENABLE_ACLK_BUS, 2, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUS2BEND_400, "aclk_bus2bend_400",

			"mout_aclk_bus2_400_user", ENABLE_ACLK_BUS,

			1, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_ACLK_BUS2RTND_400, "aclk_bus2rtnd_400",

			"mout_aclk_bus2_400_user", ENABLE_ACLK_BUS,

			0, CLK_IGNORE_UNUSED, 0),



	/* ENABLE_PCLK_BUS2 */

	GATE(CLK_PCLK_BUSSRVND_133, "pclk_bus2srvnd_133", "div_pclk_bus2_133",

			ENABLE_PCLK_BUS, 2, 0, 0),

	GATE(CLK_PCLK_PMU_BUS, "pclk_pmu_bus2", "div_pclk_bus2_133",

			ENABLE_PCLK_BUS, 1, CLK_IGNORE_UNUSED, 0),

	GATE(CLK_PCLK_SYSREG_BUS, "pclk_sysreg_bus2", "div_pclk_bus2_133",

			ENABLE_PCLK_BUS, 0, CLK_IGNORE_UNUSED, 0),

};



#define CMU_BUS_INFO_CLKS(id)						\

	.div_clks		= bus##id##_div_clks,			\

	.nr_div_clks		= ARRAY_SIZE(bus##id##_div_clks),	\

	.gate_clks		= bus##id##_gate_clks,			\

	.nr_gate_clks		= ARRAY_SIZE(bus##id##_gate_clks),	\

	.nr_clk_ids		= BUSx_NR_CLK



static struct samsung_cmu_info bus0_cmu_info __initdata = {

	CMU_BUS_INFO_CLKS(0),

	.clk_regs		= bus01_clk_regs,

	.nr_clk_regs		= ARRAY_SIZE(bus01_clk_regs),

};



static struct samsung_cmu_info bus1_cmu_info __initdata = {

	CMU_BUS_INFO_CLKS(1),

	.clk_regs		= bus01_clk_regs,

	.nr_clk_regs		= ARRAY_SIZE(bus01_clk_regs),

};



static struct samsung_cmu_info bus2_cmu_info __initdata = {

	CMU_BUS_INFO_CLKS(2),

	.mux_clks		= bus2_mux_clks,

	.nr_mux_clks		= ARRAY_SIZE(bus2_mux_clks),

	.clk_regs		= bus2_clk_regs,

	.nr_clk_regs		= ARRAY_SIZE(bus2_clk_regs),

};



#define exynos5433_cmu_bus_init(id)					\

static void __init exynos5433_cmu_bus##id##_init(struct device_node *np)\

{									\

	samsung_cmu_register_one(np, &bus##id##_cmu_info);		\

}									\

CLK_OF_DECLARE(exynos5433_cmu_bus##id,					\

		"samsung,exynos5433-cmu-bus"#id,			\

		exynos5433_cmu_bus##id##_init)



exynos5433_cmu_bus_init(0);

exynos5433_cmu_bus_init(1);

exynos5433_cmu_bus_init(2);

include/dt-bindings/clock/exynos5433.h

+26 −1
Original line number Diff line number Diff line
@@ -107,6 +107,9 @@ 
#define CLK_DIV_ACLK_MFC_400		134

#define CLK_DIV_ACLK_G2D_266		135

#define CLK_DIV_ACLK_G2D_400		136

#define CLK_DIV_ACLK_G3D_400		137

#define CLK_DIV_ACLK_BUS0_400		138

#define CLK_DIV_ACLK_BUS1_400		139



#define CLK_ACLK_PERIC_66		200

#define CLK_ACLK_PERIS_66		201
@@ -130,8 +133,14 @@ 
#define CLK_SCLK_AUDIO0			219

#define CLK_ACLK_G2D_266		220

#define CLK_ACLK_G2D_400		221

#define CLK_ACLK_G3D_400		222

#define CLK_ACLK_IMEM_SSX_266		223

#define CLK_ACLK_BUS0_400		224

#define CLK_ACLK_BUS1_400		225

#define CLK_ACLK_IMEM_200		226

#define CLK_ACLK_IMEM_266		227



#define TOP_NR_CLK			222

#define TOP_NR_CLK			228



/* CMU_CPIF */

#define CLK_FOUT_MPHY_PLL		1
@@ -679,4 +688,20 @@ 


#define AUD_NR_CLK					48



/* CMU_BUS{0|1|2} */

#define CLK_DIV_PCLK_BUS_133				1



#define CLK_ACLK_AHB2APB_BUSP				2

#define CLK_ACLK_BUSNP_133				3

#define CLK_ACLK_BUSND_400				4

#define CLK_PCLK_BUSSRVND_133				5

#define CLK_PCLK_PMU_BUS				6

#define CLK_PCLK_SYSREG_BUS				7



#define CLK_MOUT_ACLK_BUS2_400_USER			8  /* Only CMU_BUS2 */

#define CLK_ACLK_BUS2BEND_400				9  /* Only CMU_BUS2 */

#define CLK_ACLK_BUS2RTND_400				10 /* Only CMU_BUS2 */



#define BUSx_NR_CLK					11



#endif /* _DT_BINDINGS_CLOCK_EXYNOS5433_H */