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Commit ba47917c authored by Padmavathi Venna's avatar Padmavathi Venna Committed by Kukjin Kim
Browse files

ARM: S3C64XX: Add SPI clkdev support 



Registered the SPI bus clocks with clkdev using generic
connection id.

Signed-off-by: default avatarPadmavathi Venna <padma.v@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent a24d850b

arch/arm/mach-s3c64xx/clock.c

+49 −31
Original line number Diff line number Diff line
@@ -183,18 +183,6 @@ static struct clk init_clocks_off[] = { 
		.parent		= &clk_p,

		.enable		= s3c64xx_pclk_ctrl,

		.ctrlbit	= S3C_CLKCON_PCLK_SPI1,

	}, {

		.name		= "spi_48m",

		.devname	= "s3c64xx-spi.0",

		.parent		= &clk_48m,

		.enable		= s3c64xx_sclk_ctrl,

		.ctrlbit	= S3C_CLKCON_SCLK_SPI0_48,

	}, {

		.name		= "spi_48m",

		.devname	= "s3c64xx-spi.1",

		.parent		= &clk_48m,

		.enable		= s3c64xx_sclk_ctrl,

		.ctrlbit	= S3C_CLKCON_SCLK_SPI1_48,

	}, {

		.name		= "48m",

		.devname	= "s3c-sdhci.0",
@@ -226,6 +214,22 @@ static struct clk init_clocks_off[] = { 
	},

};



static struct clk clk_48m_spi0 = {

	.name		= "spi_48m",

	.devname	= "s3c64xx-spi.0",

	.parent		= &clk_48m,

	.enable		= s3c64xx_sclk_ctrl,

	.ctrlbit	= S3C_CLKCON_SCLK_SPI0_48,

};



static struct clk clk_48m_spi1 = {

	.name		= "spi_48m",

	.devname	= "s3c64xx-spi.1",

	.parent		= &clk_48m,

	.enable		= s3c64xx_sclk_ctrl,

	.ctrlbit	= S3C_CLKCON_SCLK_SPI1_48,

};



static struct clk init_clocks[] = {

	{

		.name		= "lcd",
@@ -590,25 +594,6 @@ static struct clksrc_clk clksrcs[] = { 
		.reg_src 	= { .reg = S3C_CLK_SRC, .shift = 5, .size = 2  },

		.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 20, .size = 4  },

		.sources	= &clkset_uhost,

	}, {

		.clk	= {

			.name		= "spi-bus",

			.devname	= "s3c64xx-spi.0",

			.ctrlbit        = S3C_CLKCON_SCLK_SPI0,

			.enable		= s3c64xx_sclk_ctrl,

		},

		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 14, .size = 2  },

		.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4  },

		.sources	= &clkset_spi_mmc,

	}, {

		.clk	= {

			.name		= "spi-bus",

			.devname	= "s3c64xx-spi.1",

			.enable		= s3c64xx_sclk_ctrl,

		},

		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 16, .size = 2  },

		.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4  },

		.sources	= &clkset_spi_mmc,

	}, {

		.clk	= {

			.name		= "audio-bus",
@@ -708,6 +693,30 @@ static struct clksrc_clk clk_sclk_mmc2 = { 
	.sources	= &clkset_spi_mmc,

};



static struct clksrc_clk clk_sclk_spi0 = {

	.clk	= {

		.name		= "spi-bus",

		.devname	= "s3c64xx-spi.0",

		.ctrlbit	= S3C_CLKCON_SCLK_SPI0,

		.enable		= s3c64xx_sclk_ctrl,

	},

	.reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },

	.reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },

	.sources = &clkset_spi_mmc,

};



static struct clksrc_clk clk_sclk_spi1 = {

	.clk	= {

		.name		= "spi-bus",

		.devname	= "s3c64xx-spi.1",

		.ctrlbit	= S3C_CLKCON_SCLK_SPI1,

		.enable		= s3c64xx_sclk_ctrl,

	},

	.reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },

	.reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },

	.sources = &clkset_spi_mmc,

};



/* Clock initialisation code */



static struct clksrc_clk *init_parents[] = {
@@ -721,12 +730,16 @@ static struct clksrc_clk *clksrc_cdev[] = { 
	&clk_sclk_mmc0,

	&clk_sclk_mmc1,

	&clk_sclk_mmc2,

	&clk_sclk_spi0,

	&clk_sclk_spi1,

};



static struct clk *clk_cdev[] = {

	&clk_hsmmc0,

	&clk_hsmmc1,

	&clk_hsmmc2,

	&clk_48m_spi0,

	&clk_48m_spi1,

};



static struct clk_lookup s3c64xx_clk_lookup[] = {
@@ -738,6 +751,11 @@ static struct clk_lookup s3c64xx_clk_lookup[] = { 
	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),

	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),

	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),

	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),

	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),

	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &clk_48m_spi0),

	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),

	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk2", &clk_48m_spi1),

};



#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)