Commit ec8d27b4 authored by Gabriel FERNANDEZ's avatar Gabriel FERNANDEZ Committed by Mike Turquette
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clk: st: Support for ClockGenA9/DDR/GPU 



The patch added support for DT registration of ClockGenA9/DDR/GPU

ClockgenA9/DDR : It includes c32 type PLL (also in ClockgenA1x), hence
only CLK_OF_DECLARE implementation is required.

ClockgenGPU : It includes c65 type PLL (also in ClockgenAx), hence
only CLK_OF_DECLARE implementation is required.

Signed-off-by: default avatarPankaj Dev <pankaj.dev@st.com>
Signed-off-by: default avatarGabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
parent 5f7aa907

drivers/clk/st/clkgen-pll.c

+139 −0
Original line number Diff line number Diff line
@@ -110,6 +110,76 @@ static struct clkgen_pll_data st_pll3200c32_a1x_1 = { 
	.ops		= &stm_pll3200c32_ops,

};



/* 415 specific */

static struct clkgen_pll_data st_pll3200c32_a9_415 = {

	.pdn_status	= CLKGEN_FIELD(0x0,	0x1,			0),

	.locked_status	= CLKGEN_FIELD(0x6C,	0x1,			0),

	.ndiv		= CLKGEN_FIELD(0x0,	C32_NDIV_MASK,		9),

	.idf		= CLKGEN_FIELD(0x0,	C32_IDF_MASK,		22),

	.num_odfs = 1,

	.odf =		{ CLKGEN_FIELD(0x0,	C32_ODF_MASK,		3) },

	.odf_gate =	{ CLKGEN_FIELD(0x0,	0x1,			28) },

	.ops		= &stm_pll3200c32_ops,

};



static struct clkgen_pll_data st_pll3200c32_ddr_415 = {

	.pdn_status	= CLKGEN_FIELD(0x0,	0x1,			0),

	.locked_status	= CLKGEN_FIELD(0x100,	0x1,			0),

	.ndiv		= CLKGEN_FIELD(0x8,	C32_NDIV_MASK,		0),

	.idf		= CLKGEN_FIELD(0x0,	C32_IDF_MASK,		25),

	.num_odfs = 2,

	.odf		= { CLKGEN_FIELD(0x8,	C32_ODF_MASK,		8),

			    CLKGEN_FIELD(0x8,	C32_ODF_MASK,		14) },

	.odf_gate	= { CLKGEN_FIELD(0x4,	0x1,			28),

			    CLKGEN_FIELD(0x4,	0x1,			29) },

	.ops		= &stm_pll3200c32_ops,

};



static struct clkgen_pll_data st_pll1200c32_gpu_415 = {

	.pdn_status	= CLKGEN_FIELD(0x144,	0x1,			3),

	.locked_status	= CLKGEN_FIELD(0x168,	0x1,			0),

	.ldf		= CLKGEN_FIELD(0x0,	C32_LDF_MASK,		3),

	.idf		= CLKGEN_FIELD(0x0,	C32_IDF_MASK,		0),

	.num_odfs = 0,

	.odf		= { CLKGEN_FIELD(0x0,	C32_ODF_MASK,		10) },

	.ops		= &st_pll1200c32_ops,

};



/* 416 specific */

static struct clkgen_pll_data st_pll3200c32_a9_416 = {

	.pdn_status	= CLKGEN_FIELD(0x0,	0x1,			0),

	.locked_status	= CLKGEN_FIELD(0x6C,	0x1,			0),

	.ndiv		= CLKGEN_FIELD(0x8,	C32_NDIV_MASK,		0),

	.idf		= CLKGEN_FIELD(0x0,	C32_IDF_MASK,		25),

	.num_odfs = 1,

	.odf		= { CLKGEN_FIELD(0x8,	C32_ODF_MASK,		8) },

	.odf_gate	= { CLKGEN_FIELD(0x4,	0x1,			28) },

	.ops		= &stm_pll3200c32_ops,

};



static struct clkgen_pll_data st_pll3200c32_ddr_416 = {

	.pdn_status	= CLKGEN_FIELD(0x0,	0x1,			0),

	.locked_status	= CLKGEN_FIELD(0x10C,	0x1,			0),

	.ndiv		= CLKGEN_FIELD(0x8,	C32_NDIV_MASK,		0),

	.idf		= CLKGEN_FIELD(0x0,	C32_IDF_MASK,		25),

	.num_odfs = 2,

	.odf		= { CLKGEN_FIELD(0x8,	C32_ODF_MASK,		8),

			    CLKGEN_FIELD(0x8,	C32_ODF_MASK,		14) },

	.odf_gate	= { CLKGEN_FIELD(0x4,	0x1,			28),

			    CLKGEN_FIELD(0x4,	0x1,			29) },

	.ops		= &stm_pll3200c32_ops,

};



static struct clkgen_pll_data st_pll1200c32_gpu_416 = {

	.pdn_status	= CLKGEN_FIELD(0x8E4,	0x1,			3),

	.locked_status	= CLKGEN_FIELD(0x90C,	0x1,			0),

	.ldf		= CLKGEN_FIELD(0x0,	C32_LDF_MASK,		3),

	.idf		= CLKGEN_FIELD(0x0,	C32_IDF_MASK,		0),

	.num_odfs = 0,

	.odf		= { CLKGEN_FIELD(0x0,	C32_ODF_MASK,		10) },

	.ops		= &st_pll1200c32_ops,

};



/**

 * DOC: Clock Generated by PLL, rate set and enabled by bootloader

 *
@@ -484,6 +554,22 @@ static struct of_device_id c32_pll_of_match[] = { 
		.compatible = "st,plls-c32-a1x-1",

		.data = &st_pll3200c32_a1x_1,

	},

	{

		.compatible = "st,stih415-plls-c32-a9",

		.data = &st_pll3200c32_a9_415,

	},

	{

		.compatible = "st,stih415-plls-c32-ddr",

		.data = &st_pll3200c32_ddr_415,

	},

	{

		.compatible = "st,stih416-plls-c32-a9",

		.data = &st_pll3200c32_a9_416,

	},

	{

		.compatible = "st,stih416-plls-c32-ddr",

		.data = &st_pll3200c32_ddr_416,

	},

	{}

};
@@ -557,3 +643,56 @@ err: 
	kfree(clk_data);

}

CLK_OF_DECLARE(clkgen_c32_pll, "st,clkgen-plls-c32", clkgen_c32_pll_setup);



static struct of_device_id c32_gpu_pll_of_match[] = {

	{

		.compatible = "st,stih415-gpu-pll-c32",

		.data = &st_pll1200c32_gpu_415,

	},

	{

		.compatible = "st,stih416-gpu-pll-c32",

		.data = &st_pll1200c32_gpu_416,

	},

};



static void __init clkgengpu_c32_pll_setup(struct device_node *np)

{

	const struct of_device_id *match;

	struct clk *clk;

	const char *parent_name;

	void __iomem *reg;

	const char *clk_name;

	struct clkgen_pll_data	*data;



	match = of_match_node(c32_gpu_pll_of_match, np);

	if (!match) {

		pr_err("%s: No matching data\n", __func__);

		return;

	}



	data = (struct clkgen_pll_data *)match->data;



	parent_name = of_clk_get_parent_name(np, 0);

	if (!parent_name)

		return;



	reg = clkgen_get_register_base(np);

	if (!reg)

		return;



	if (of_property_read_string_index(np, "clock-output-names",

					  0, &clk_name))

		return;



	/*

	 * PLL 1200MHz output

	 */

	clk = clkgen_pll_register(parent_name, data, reg, clk_name);



	if (!IS_ERR(clk))

		of_clk_add_provider(np, of_clk_src_simple_get, clk);



	return;

}

CLK_OF_DECLARE(clkgengpu_c32_pll,

	       "st,clkgengpu-pll-c32", clkgengpu_c32_pll_setup);

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