From 094e62a528e95677a16a9465a1decfdc045e7197 Mon Sep 17 00:00:00 2001 From: Amaury Pouly Date: Sat, 31 Dec 2011 13:35:45 +0000 Subject: imx233/fuze+: implement rtc (time only, alarm still to implement) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31473 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/imx233/rtc-imx233.h | 74 ++++++++++++++++++++++++++++++++- 1 file changed, 73 insertions(+), 1 deletion(-) (limited to 'firmware/target/arm/imx233/rtc-imx233.h') diff --git a/firmware/target/arm/imx233/rtc-imx233.h b/firmware/target/arm/imx233/rtc-imx233.h index c26832ab57..054ace40b8 100644 --- a/firmware/target/arm/imx233/rtc-imx233.h +++ b/firmware/target/arm/imx233/rtc-imx233.h @@ -25,13 +25,85 @@ #include "system.h" #include "cpu.h" -#define HW_RTC_BASE 0x8005C000 +#define HW_RTC_BASE 0x8005c000 #define HW_RTC_CTRL (*(volatile uint32_t *)(HW_RTC_BASE + 0x0)) +#define HW_RTC_CTRL__ALARM_IRQ_EN (1 << 0) +#define HW_RTC_CTRL__ONEMSEC_IRQ_EN (1 << 1) +#define HW_RTC_CTRL__ALARM_IRQ (1 << 2) +#define HW_RTC_CTRL__ONEMSEC_IRQ (1 << 3) +#define HW_RTC_CTRL__WATCHDOGEN (1 << 4) +#define HW_RTC_CTRL__FORCE_UPDATE (1 << 5) +#define HW_RTC_CTRL__SUPPRESS_COPY2ANALOG (1 << 6) + +#define HW_RTC_STAT (*(volatile uint32_t *)(HW_RTC_BASE + 0x10)) +#define HW_RTC_STAT__NEW_REGS_BP 8 +#define HW_RTC_STAT__NEW_REGS_BM 0xff00 +#define HW_RTC_STAT__STALE_REGS_BP 16 +#define HW_RTC_STAT__STALE_REGS_BM 0xff0000 +#define HW_RTC_STAT__XTAL32768_PRESENT (1 << 27) +#define HW_RTC_STAT__XTAL32000_PRESENT (1 << 28) +#define HW_RTC_STAT__WATCHDOG_PRESENT (1 << 29) +#define HW_RTC_STAT__ALARM_PRESENT (1 << 30) +#define HW_RTC_STAT__RTC_PRESENT (1 << 31) + +#define HW_RTC_MILLISECONDS (*(volatile uint32_t *)(HW_RTC_BASE + 0x20)) + +#define HW_RTC_SECONDS (*(volatile uint32_t *)(HW_RTC_BASE + 0x30)) + +#define HW_RTC_ALARM (*(volatile uint32_t *)(HW_RTC_BASE + 0x40)) + +#define HW_RTC_WATCHDOG (*(volatile uint32_t *)(HW_RTC_BASE + 0x50)) + +#define HW_RTC_PERSISTENTx(x) (*(volatile uint32_t *)(HW_RTC_BASE + 0x60 + (x) * 0x10)) #define HW_RTC_PERSISTENT0 (*(volatile uint32_t *)(HW_RTC_BASE + 0x60)) +#define HW_RTC_PERSISTENT0__CLOCKSOURCE (1 << 0) +#define HW_RTC_PERSISTENT0__ALARM_WAKE_EN (1 << 1) +#define HW_RTC_PERSISTENT0__ALARM_EN (1 << 2) +#define HW_RTC_PERSISTENT0__XTAL24MHZ_PWRUP (1 << 4) +#define HW_RTC_PERSISTENT0__XTAL32KHZ_PWRUP (1 << 5) +#define HW_RTC_PERSISTENT0__XTAL32_FREQ (1 << 6) +#define HW_RTC_PERSISTENT0__ALARM_WAKE (1 << 7) +#define HW_RTC_PERSISTENT0__AUTO_RESTART (1 << 17) #define HW_RTC_PERSISTENT0__SPARE_BP 18 #define HW_RTC_PERSISTENT0__SPARE_BM (0x3fff << 18) #define HW_RTC_PERSISTENT0__SPARE__RELEASE_GND (1 << 19) +#define HW_RTC_PERSISTENT1 (*(volatile uint32_t *)(HW_RTC_BASE + 0x70)) + +#define HW_RTC_PERSISTENT2 (*(volatile uint32_t *)(HW_RTC_BASE + 0x80)) + +#define HW_RTC_PERSISTENT3 (*(volatile uint32_t *)(HW_RTC_BASE + 0x90)) + +#define HW_RTC_PERSISTENT4 (*(volatile uint32_t *)(HW_RTC_BASE + 0xa0)) + +#define HW_RTC_PERSISTENT5 (*(volatile uint32_t *)(HW_RTC_BASE + 0xb0)) + +struct imx233_rtc_info_t +{ + uint32_t seconds; + uint32_t persistent[6]; +}; + +static inline void imx233_rtc_init(void) +{ + __REG_CLR(HW_RTC_CTRL) = __BLOCK_CLKGATE; +} + +static inline uint32_t imx233_rtc_read_seconds(void) +{ + return HW_RTC_SECONDS; +} + +static inline uint32_t imx233_rtc_read_persistent(int idx) +{ + return HW_RTC_PERSISTENTx(idx); +} + +void imx233_rtc_write_seconds(uint32_t seconds); +void imx233_rtc_write_persistent(int idx, uint32_t val); + +struct imx233_rtc_info_t imx233_rtc_get_info(void); + #endif /* RTC_IMX233_H */ -- cgit v1.2.3