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Commit 1c8daabe authored by Ryan Mallon's avatar Ryan Mallon Committed by Russell King
Browse files

[ARM] 5413/1: Add ep93xx dma m2p clocks 



Add the clocks for ep93xx m2p dma engine.

Signed-off-by: default avatarRyan Mallon <ryan@bluewatersys.com>
Acked-by: default avatarLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent c633c3cf

arch/arm/mach-ep93xx/clock.c

+79 −0
Original line number Diff line number Diff line
@@ -41,6 +41,56 @@ static struct clk clk_usb_host = { 
	.enable_mask	= EP93XX_SYSCON_CLOCK_USH_EN,

};



/* DMA Clocks */

static struct clk clk_m2p0 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00020000,

};

static struct clk clk_m2p1 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00010000,

};

static struct clk clk_m2p2 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00080000,

};

static struct clk clk_m2p3 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00040000,

};

static struct clk clk_m2p4 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00200000,

};

static struct clk clk_m2p5 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00100000,

};

static struct clk clk_m2p6 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00800000,

};

static struct clk clk_m2p7 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x00400000,

};

static struct clk clk_m2p8 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x02000000,

};

static struct clk clk_m2p9 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x01000000,

};

static struct clk clk_m2m0 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x04000000,

};

static struct clk clk_m2m1 = {

	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,

	.enable_mask	= 0x08000000,

};



#define INIT_CK(dev,con,ck)					\

	{ .dev_id = dev, .con_id = con, .clk = ck }
@@ -54,6 +104,18 @@ static struct clk_lookup clocks[] = { 
	INIT_CK(NULL, "pclk", &clk_p),

	INIT_CK(NULL, "pll2", &clk_pll2),

	INIT_CK(NULL, "usb_host", &clk_usb_host),

	INIT_CK(NULL, "m2p0", &clk_m2p0),

	INIT_CK(NULL, "m2p1", &clk_m2p1),

	INIT_CK(NULL, "m2p2", &clk_m2p2),

	INIT_CK(NULL, "m2p3", &clk_m2p3),

	INIT_CK(NULL, "m2p4", &clk_m2p4),

	INIT_CK(NULL, "m2p5", &clk_m2p5),

	INIT_CK(NULL, "m2p6", &clk_m2p6),

	INIT_CK(NULL, "m2p7", &clk_m2p7),

	INIT_CK(NULL, "m2p8", &clk_m2p8),

	INIT_CK(NULL, "m2p9", &clk_m2p9),

	INIT_CK(NULL, "m2m0", &clk_m2m0),

	INIT_CK(NULL, "m2m1", &clk_m2m1),

};
@@ -110,6 +172,22 @@ static unsigned long calc_pll_rate(u32 config_word) 
	return (unsigned long)rate;

}



static void __init ep93xx_dma_clock_init(void)

{

	clk_m2p0.rate = clk_h.rate;

	clk_m2p1.rate = clk_h.rate;

	clk_m2p2.rate = clk_h.rate;

	clk_m2p3.rate = clk_h.rate;

	clk_m2p4.rate = clk_h.rate;

	clk_m2p5.rate = clk_h.rate;

	clk_m2p6.rate = clk_h.rate;

	clk_m2p7.rate = clk_h.rate;

	clk_m2p8.rate = clk_h.rate;

	clk_m2p9.rate = clk_h.rate;

	clk_m2m0.rate = clk_h.rate;

	clk_m2m1.rate = clk_h.rate;

}



static int __init ep93xx_clock_init(void)

{

	u32 value;
@@ -124,6 +202,7 @@ static int __init ep93xx_clock_init(void) 
	clk_f.rate = clk_pll1.rate / fclk_divisors[(value >> 25) & 0x7];

	clk_h.rate = clk_pll1.rate / hclk_divisors[(value >> 20) & 0x7];

	clk_p.rate = clk_h.rate / pclk_divisors[(value >> 18) & 0x3];

	ep93xx_dma_clock_init();



	value = __raw_readl(EP93XX_SYSCON_CLOCK_SET2);

	if (!(value & 0x00080000)) {			/* PLL2 bypassed?  */