Commit 4b31d8b2 authored by Ben Dooks's avatar Ben Dooks
Browse files

[ARM] S3C64XX: Add initial clock framework 



Add the initial clocks definitions for the s3c6400
and s3c6410. Move the epll and ext clock from the
s3c2443 support into the common code.

Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 952b564b

arch/arm/mach-s3c2412/clock.c

+0 −6
Original line number Diff line number Diff line
@@ -93,12 +93,6 @@ static int s3c2412_upll_enable(struct clk *clk, int enable) 


/* clock selections */



/* CPU EXTCLK input */

static struct clk clk_ext = {

	.name		= "extclk",

	.id		= -1,

};



static struct clk clk_erefclk = {

	.name		= "erefclk",

	.id		= -1,

arch/arm/mach-s3c2443/clock.c

+1 −14
Original line number Diff line number Diff line
@@ -147,12 +147,6 @@ static unsigned long s3c2443_roundrate_clksrc256(struct clk *clk, 


/* clock selections */



/* CPU EXTCLK input */

static struct clk clk_ext = {

	.name		= "ext",

	.id		= -1,

};



static struct clk clk_mpllref = {

	.name		= "mpllref",

	.parent		= &clk_xtal,
@@ -167,14 +161,6 @@ static struct clk clk_mpll = { 
};

#endif



static struct clk clk_epllref;



static struct clk clk_epll = {

	.name		= "epll",

	.parent		= &clk_epllref,

	.id		= -1,

};



static struct clk clk_i2s_ext = {

	.name		= "i2s-ext",

	.id		= -1,
@@ -1072,6 +1058,7 @@ void __init s3c2443_init_clocks(int xtal) 
	}



	clk_epll.rate = s3c2443_get_epll(epllcon, xtal);

	clk_epll.parent = &clk_epllref;

	clk_usb_bus.parent = &clk_usb_bus_host;



	/* ensure usb bus clock is within correct rate of 48MHz */

arch/arm/mach-s3c6410/cpu.c

+1 −0
Original line number Diff line number Diff line
@@ -56,6 +56,7 @@ void __init s3c6410_init_clocks(int xtal) 
{

	printk(KERN_INFO "%s: initialising clocks\n", __func__);

	s3c24xx_register_baseclocks(xtal);

	s3c64xx_register_clocks();

}



void __init s3c6410_init_irq(void)

arch/arm/plat-s3c/clock.c

+10 −0
Original line number Diff line number Diff line
@@ -239,6 +239,16 @@ struct clk clk_xtal = { 
	.ctrlbit	= 0,

};



struct clk clk_ext = {

	.name		= "ext",

	.id		= -1,

};



struct clk clk_epll = {

	.name		= "epll",

	.id		= -1,

};



struct clk clk_mpll = {

	.name		= "mpll",

	.id		= -1,

arch/arm/plat-s3c/include/plat/clock.h

+8 −0
Original line number Diff line number Diff line
@@ -45,7 +45,13 @@ extern struct clk clk_h; 
extern struct clk clk_p;

extern struct clk clk_mpll;

extern struct clk clk_upll;

extern struct clk clk_epll;

extern struct clk clk_xtal;

extern struct clk clk_ext;



/* S3C64XX specific clocks */

extern struct clk clk_27m;

extern struct clk clk_48m;



/* exports for arch/arm/mach-s3c2410

 *
@@ -61,6 +67,8 @@ extern int s3c24xx_register_clocks(struct clk **clk, int nr_clks); 


extern int s3c24xx_register_baseclocks(unsigned long xtal);



extern void s3c64xx_register_clocks(void);



extern void s3c24xx_setup_clocks(unsigned long fclk,

				 unsigned long hclk,

				 unsigned long pclk);