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authorAmaury Pouly <pamaury@rockbox.org>2011-12-31 13:35:45 +0000
committerAmaury Pouly <pamaury@rockbox.org>2011-12-31 13:35:45 +0000
commit094e62a528e95677a16a9465a1decfdc045e7197 (patch)
tree03018b3aebf4c0938f2b3e0936233d036ea54829 /firmware/target/arm/imx233/rtc-imx233.h
parent162fdeaa979074a0ad9711b94571894d737d3efe (diff)
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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
Diffstat (limited to 'firmware/target/arm/imx233/rtc-imx233.h')
-rw-r--r--firmware/target/arm/imx233/rtc-imx233.h74
1 files changed, 73 insertions, 1 deletions
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 */