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Commit bb1ad68b authored by Andrew Victor's avatar Andrew Victor Committed by Russell King
Browse files

[ARM] 5258/1: [AT91] PWM controller initialization 



Add platform_devices and configuration of the PWM controller found on
Atmel AT91CAP9, SAM9263 and SAM9RL processors.
SAM9263 support by Sedji Gaouaou.

Signed-off-by: default avatarAndrew Victor <linux@maxim.org.za>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e505240b

arch/arm/mach-at91/at91cap9.c

+3 −3
Original line number Diff line number Diff line
@@ -141,8 +141,8 @@ static struct clk tcb_clk = { 
	.pmc_mask	= 1 << AT91CAP9_ID_TCB,

	.type		= CLK_TYPE_PERIPHERAL,

};

static struct clk pwmc_clk = {

	.name		= "pwmc_clk",

static struct clk pwm_clk = {

	.name		= "pwm_clk",

	.pmc_mask	= 1 << AT91CAP9_ID_PWMC,

	.type		= CLK_TYPE_PERIPHERAL,

};
@@ -207,7 +207,7 @@ static struct clk *periph_clocks[] __initdata = { 
	&ssc1_clk,

	&ac97_clk,

	&tcb_clk,

	&pwmc_clk,

	&pwm_clk,

	&macb_clk,

	&aestdes_clk,

	&adc_clk,

arch/arm/mach-at91/at91cap9_devices.c

+54 −0
Original line number Diff line number Diff line
@@ -718,6 +718,60 @@ static void __init at91_add_device_watchdog(void) {} 
#endif





/* --------------------------------------------------------------------

 *  PWM

 * --------------------------------------------------------------------*/



#if defined(CONFIG_ATMEL_PWM)

static u32 pwm_mask;



static struct resource pwm_resources[] = {

	[0] = {

		.start	= AT91CAP9_BASE_PWMC,

		.end	= AT91CAP9_BASE_PWMC + SZ_16K - 1,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= AT91CAP9_ID_PWMC,

		.end	= AT91CAP9_ID_PWMC,

		.flags	= IORESOURCE_IRQ,

	},

};



static struct platform_device at91cap9_pwm0_device = {

	.name	= "atmel_pwm",

	.id	= -1,

	.dev	= {

		.platform_data		= &pwm_mask,

	},

	.resource	= pwm_resources,

	.num_resources	= ARRAY_SIZE(pwm_resources),

};



void __init at91_add_device_pwm(u32 mask)

{

	if (mask & (1 << AT91_PWM0))

		at91_set_A_periph(AT91_PIN_PB19, 1);	/* enable PWM0 */



	if (mask & (1 << AT91_PWM1))

		at91_set_B_periph(AT91_PIN_PB8, 1);	/* enable PWM1 */



	if (mask & (1 << AT91_PWM2))

		at91_set_B_periph(AT91_PIN_PC29, 1);	/* enable PWM2 */



	if (mask & (1 << AT91_PWM3))

		at91_set_B_periph(AT91_PIN_PA11, 1);	/* enable PWM3 */



	pwm_mask = mask;



	platform_device_register(&at91cap9_pwm0_device);

}

#else

void __init at91_add_device_pwm(u32 mask) {}

#endif







/* --------------------------------------------------------------------

 *  AC97

 * -------------------------------------------------------------------- */

arch/arm/mach-at91/at91sam9263.c

+3 −3
Original line number Diff line number Diff line
@@ -129,8 +129,8 @@ static struct clk tcb_clk = { 
	.pmc_mask	= 1 << AT91SAM9263_ID_TCB,

	.type		= CLK_TYPE_PERIPHERAL,

};

static struct clk pwmc_clk = {

	.name		= "pwmc_clk",

static struct clk pwm_clk = {

	.name		= "pwm_clk",

	.pmc_mask	= 1 << AT91SAM9263_ID_PWMC,

	.type		= CLK_TYPE_PERIPHERAL,

};
@@ -187,7 +187,7 @@ static struct clk *periph_clocks[] __initdata = { 
	&ssc1_clk,

	&ac97_clk,

	&tcb_clk,

	&pwmc_clk,

	&pwm_clk,

	&macb_clk,

	&twodge_clk,

	&udc_clk,

arch/arm/mach-at91/at91sam9263_devices.c

+53 −0
Original line number Diff line number Diff line
@@ -885,6 +885,59 @@ static void __init at91_add_device_watchdog(void) {} 
#endif





/* --------------------------------------------------------------------

 *  PWM

 * --------------------------------------------------------------------*/



#if defined(CONFIG_ATMEL_PWM)

static u32 pwm_mask;



static struct resource pwm_resources[] = {

	[0] = {

		.start	= AT91SAM9263_BASE_PWMC,

		.end	= AT91SAM9263_BASE_PWMC + SZ_16K - 1,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= AT91SAM9263_ID_PWMC,

		.end	= AT91SAM9263_ID_PWMC,

		.flags	= IORESOURCE_IRQ,

	},

};



static struct platform_device at91sam9263_pwm0_device = {

	.name	= "atmel_pwm",

	.id	= -1,

	.dev	= {

		.platform_data		= &pwm_mask,

	},

	.resource	= pwm_resources,

	.num_resources	= ARRAY_SIZE(pwm_resources),

};



void __init at91_add_device_pwm(u32 mask)

{

	if (mask & (1 << AT91_PWM0))

		at91_set_B_periph(AT91_PIN_PB7, 1);	/* enable PWM0 */



	if (mask & (1 << AT91_PWM1))

		at91_set_B_periph(AT91_PIN_PB8, 1);	/* enable PWM1 */



	if (mask & (1 << AT91_PWM2))

		at91_set_B_periph(AT91_PIN_PC29, 1);	/* enable PWM2 */



	if (mask & (1 << AT91_PWM3))

		at91_set_B_periph(AT91_PIN_PB29, 1);	/* enable PWM3 */



	pwm_mask = mask;



	platform_device_register(&at91sam9263_pwm0_device);

}

#else

void __init at91_add_device_pwm(u32 mask) {}

#endif





/* --------------------------------------------------------------------

 *  SSC -- Synchronous Serial Controller

 * -------------------------------------------------------------------- */

arch/arm/mach-at91/at91sam9rl.c

+3 −3
Original line number Diff line number Diff line
@@ -131,8 +131,8 @@ static struct clk tc2_clk = { 
	.pmc_mask	= 1 << AT91SAM9RL_ID_TC2,

	.type		= CLK_TYPE_PERIPHERAL,

};

static struct clk pwmc_clk = {

	.name		= "pwmc_clk",

static struct clk pwm_clk = {

	.name		= "pwm_clk",

	.pmc_mask	= 1 << AT91SAM9RL_ID_PWMC,

	.type		= CLK_TYPE_PERIPHERAL,

};
@@ -180,7 +180,7 @@ static struct clk *periph_clocks[] __initdata = { 
	&tc0_clk,

	&tc1_clk,

	&tc2_clk,

	&pwmc_clk,

	&pwm_clk,

	&tsc_clk,

	&dma_clk,

	&udphs_clk,