From 884f5a6a8dc8646d5904f166adf3c558be57e1ab Mon Sep 17 00:00:00 2001 From: Andrew Victor Date: Wed, 23 Jan 2008 09:11:13 +0100 Subject: [ARM] 4752/1: [AT91] RTT, RTC and WDT peripherals on SAM9 Add platform_device and initialization for the RTT (Real Time Timer) and WDT (Watchdog) integrated in the Atmel AT91SAM9 processors. For SAM9263, register both RTT peripherals. [From: David Brownell ] Provide platform_resources for RTT peripherals [From: David Brownell ] Add support for RTC peripheral on AT91SAM9RL (same RTC peripherals as AT91RM9200) [From: David Brownell ] Signed-off-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/at91sam9263_devices.c | 63 ++++++++++++++++++++++++++++++++ 1 file changed, 63 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 d50a8dfb916..b4eb21769db 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -781,6 +781,67 @@ void __init at91_add_device_isi(void) {} #endif +/* -------------------------------------------------------------------- + * RTT + * -------------------------------------------------------------------- */ + +static struct resource rtt0_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT0, + .end = AT91_BASE_SYS + AT91_RTT0 + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9263_rtt0_device = { + .name = "at91_rtt", + .id = 0, + .resource = rtt0_resources, + .num_resources = ARRAY_SIZE(rtt0_resources), +}; + +static struct resource rtt1_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT1, + .end = AT91_BASE_SYS + AT91_RTT1 + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9263_rtt1_device = { + .name = "at91_rtt", + .id = 1, + .resource = rtt1_resources, + .num_resources = ARRAY_SIZE(rtt1_resources), +}; + +static void __init at91_add_device_rtt(void) +{ + platform_device_register(&at91sam9263_rtt0_device); + platform_device_register(&at91sam9263_rtt1_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91sam9263_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91sam9263_wdt_device); +} +#else +static void __init at91_add_device_watchdog(void) {} +#endif + + /* -------------------------------------------------------------------- * LEDs * -------------------------------------------------------------------- */ @@ -1021,6 +1082,8 @@ void __init at91_add_device_serial(void) {} */ static int __init at91_add_standard_devices(void) { + at91_add_device_rtt(); + at91_add_device_watchdog(); return 0; } -- cgit v1.2.3