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authorAndrew Victor <linux@maxim.org.za>2008-09-18 19:42:37 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-09-21 22:58:37 +0100
commitbb1ad68b96a68e577a87ad62fe1aa26d052a52b5 (patch)
treea98d65d54a4f441329f83988ffb9bea16e7d396e /arch/arm/mach-at91/at91cap9_devices.c
parente505240b6a6fd47b84cfeb1272ffeacd3e0874b3 (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.c54
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
* -------------------------------------------------------------------- */