diff options
| author | Andrew Victor <linux@maxim.org.za> | 2008-09-18 19:42:37 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-21 22:58:37 +0100 |
| commit | bb1ad68b96a68e577a87ad62fe1aa26d052a52b5 (patch) | |
| tree | a98d65d54a4f441329f83988ffb9bea16e7d396e /arch/arm/mach-at91/at91cap9_devices.c | |
| parent | e505240b6a6fd47b84cfeb1272ffeacd3e0874b3 (diff) | |
[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 <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91/at91cap9_devices.c')
| -rw-r--r-- | arch/arm/mach-at91/at91cap9_devices.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c index abb4aac8fa9..5ebd4273d35 100644 --- a/arch/arm/mach-at91/at91cap9_devices.c +++ b/arch/arm/mach-at91/at91cap9_devices.c @@ -719,6 +719,60 @@ static void __init at91_add_device_watchdog(void) {} /* -------------------------------------------------------------------- + * 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 * -------------------------------------------------------------------- */ |