From bb1ad68b96a68e577a87ad62fe1aa26d052a52b5 Mon Sep 17 00:00:00 2001 From: Andrew Victor Date: Thu, 18 Sep 2008 19:42:37 +0100 Subject: [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: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/at91sam9263_devices.c | 53 ++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) (limited to 'arch/arm/mach-at91/at91sam9263_devices.c') diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index c93992f55dc..8b884083f76 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -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 * -------------------------------------------------------------------- */ -- cgit v1.2.3