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Commit fe66158a authored by Steven King's avatar Steven King Committed by Greg Ungerer
Browse files

m68knommu: Add clk definitions for m520x. 



The 520x has individually controllable clocks for its peripherals.  Add clk
definitions for these and add default initialization of either enabled or
disabled for all of the clocks.

Signed-off-by: default avatarSteven King <sfking@fdwdc.com>
Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
parent c785a3d7

arch/m68k/include/asm/m520xsim.h

+10 −0
Original line number Original line Diff line number Diff line
@@ -190,5 +190,15 @@ 
#define	MCF_RCR_SWRESET		0x80		/* Software reset bit */

#define	MCF_RCR_SWRESET		0x80		/* Software reset bit */

#define	MCF_RCR_FRCSTOUT	0x40		/* Force external reset */

#define	MCF_RCR_FRCSTOUT	0x40		/* Force external reset */





/*

 *  Power Management.

 */

#define MCFPM_WCR		0xfc040013

#define MCFPM_PPMSR0		0xfc04002c

#define MCFPM_PPMCR0		0xfc04002d

#define MCFPM_PPMHR0		0xfc040030

#define MCFPM_PPMLR0		0xfc040034

#define MCFPM_LPCR		0xfc0a0007



/****************************************************************************/

/****************************************************************************/

#endif  /* m520xsim_h */
 
#endif  /* m520xsim_h */

arch/m68k/platform/coldfire/m520x.c

+97 −0
Original line number Original line Diff line number Diff line
@@ -19,6 +19,102 @@ 
#include <asm/coldfire.h>

#include <asm/coldfire.h>

#include <asm/mcfsim.h>

#include <asm/mcfsim.h>

#include <asm/mcfuart.h>

#include <asm/mcfuart.h>

#include <asm/mcfclk.h>



/***************************************************************************/



DEFINE_CLK(0, "flexbus", 2, MCF_CLK);

DEFINE_CLK(0, "fec.0", 12, MCF_CLK);

DEFINE_CLK(0, "edma", 17, MCF_CLK);

DEFINE_CLK(0, "intc.0", 18, MCF_CLK);

DEFINE_CLK(0, "iack.0", 21, MCF_CLK);

DEFINE_CLK(0, "mcfi2c.0", 22, MCF_CLK);

DEFINE_CLK(0, "mcfqspi.0", 23, MCF_CLK);

DEFINE_CLK(0, "mcfuart.0", 24, MCF_BUSCLK);

DEFINE_CLK(0, "mcfuart.1", 25, MCF_BUSCLK);

DEFINE_CLK(0, "mcfuart.2", 26, MCF_BUSCLK);

DEFINE_CLK(0, "mcftmr.0", 28, MCF_CLK);

DEFINE_CLK(0, "mcftmr.1", 29, MCF_CLK);

DEFINE_CLK(0, "mcftmr.2", 30, MCF_CLK);

DEFINE_CLK(0, "mcftmr.3", 31, MCF_CLK);



DEFINE_CLK(0, "mcfpit.0", 32, MCF_CLK);

DEFINE_CLK(0, "mcfpit.1", 33, MCF_CLK);

DEFINE_CLK(0, "mcfeport.0", 34, MCF_CLK);

DEFINE_CLK(0, "mcfwdt.0", 35, MCF_CLK);

DEFINE_CLK(0, "pll.0", 36, MCF_CLK);

DEFINE_CLK(0, "sys.0", 40, MCF_BUSCLK);

DEFINE_CLK(0, "gpio.0", 41, MCF_BUSCLK);

DEFINE_CLK(0, "sdram.0", 42, MCF_CLK);



struct clk *mcf_clks[] = {

	&__clk_0_2, /* flexbus */

	&__clk_0_12, /* fec.0 */

	&__clk_0_17, /* edma */

	&__clk_0_18, /* intc.0 */

	&__clk_0_21, /* iack.0 */

	&__clk_0_22, /* mcfi2c.0 */

	&__clk_0_23, /* mcfqspi.0 */

	&__clk_0_24, /* mcfuart.0 */

	&__clk_0_25, /* mcfuart.1 */

	&__clk_0_26, /* mcfuart.2 */

	&__clk_0_28, /* mcftmr.0 */

	&__clk_0_29, /* mcftmr.1 */

	&__clk_0_30, /* mcftmr.2 */

	&__clk_0_31, /* mcftmr.3 */



	&__clk_0_32, /* mcfpit.0 */

	&__clk_0_33, /* mcfpit.1 */

	&__clk_0_34, /* mcfeport.0 */

	&__clk_0_35, /* mcfwdt.0 */

	&__clk_0_36, /* pll.0 */

	&__clk_0_40, /* sys.0 */

	&__clk_0_41, /* gpio.0 */

	&__clk_0_42, /* sdram.0 */

NULL,

};



static struct clk * const enable_clks[] __initconst = {

	&__clk_0_2, /* flexbus */

	&__clk_0_18, /* intc.0 */

	&__clk_0_21, /* iack.0 */

	&__clk_0_24, /* mcfuart.0 */

	&__clk_0_25, /* mcfuart.1 */

	&__clk_0_26, /* mcfuart.2 */



	&__clk_0_32, /* mcfpit.0 */

	&__clk_0_33, /* mcfpit.1 */

	&__clk_0_34, /* mcfeport.0 */

	&__clk_0_36, /* pll.0 */

	&__clk_0_40, /* sys.0 */

	&__clk_0_41, /* gpio.0 */

	&__clk_0_42, /* sdram.0 */

};



static struct clk * const disable_clks[] __initconst = {

	&__clk_0_12, /* fec.0 */

	&__clk_0_17, /* edma */

	&__clk_0_22, /* mcfi2c.0 */

	&__clk_0_23, /* mcfqspi.0 */

	&__clk_0_28, /* mcftmr.0 */

	&__clk_0_29, /* mcftmr.1 */

	&__clk_0_30, /* mcftmr.2 */

	&__clk_0_31, /* mcftmr.3 */

	&__clk_0_35, /* mcfwdt.0 */

};





static void __init m520x_clk_init(void)

{

	unsigned i;



	/* make sure these clocks are enabled */

	for (i = 0; i < ARRAY_SIZE(enable_clks); ++i)

		__clk_init_enabled(enable_clks[i]);

	/* make sure these clocks are disabled */

	for (i = 0; i < ARRAY_SIZE(disable_clks); ++i)

		__clk_init_disabled(disable_clks[i]);

}





/***************************************************************************/

/***************************************************************************/
@@ -77,6 +173,7 @@ static void __init m520x_fec_init(void) 
void __init config_BSP(char *commandp, int size)

void __init config_BSP(char *commandp, int size)

{

{

	mach_sched_init = hw_timer_init;

	mach_sched_init = hw_timer_init;

	m520x_clk_init();

	m520x_uarts_init();

	m520x_uarts_init();

	m520x_fec_init();

	m520x_fec_init();

#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)

#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)