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

2 files changed, 108 insertions, 2 deletions

diff --git a/firmware/target/arm/imx233/debug-imx233.c b/firmware/target/arm/imx233/debug-imx233.c
index 896c5bf6c3..228d2abcdb 100644
--- a/firmware/target/arm/imx233/debug-imx233.c
+++ b/firmware/target/arm/imx233/debug-imx233.c
@@ -30,6 +30,7 @@
 #include "power-imx233.h"
 #include "clkctrl-imx233.h"
 #include "powermgmt-imx233.h"
+#include "rtc-imx233.h"
 #include "string.h"
 
 static struct
@@ -313,10 +314,43 @@ bool dbg_hw_info_powermgmt(void)
     }
 }
 
+bool dbg_hw_info_rtc(void)
+{
+    lcd_setfont(FONT_SYSFIXED);
+    
+    while(1)
+    {
+        int button = get_action(CONTEXT_STD, HZ / 10);
+        switch(button)
+        {
+            case ACTION_STD_NEXT:
+            case ACTION_STD_PREV:
+            case ACTION_STD_OK:
+            case ACTION_STD_MENU:
+                lcd_setfont(FONT_UI);
+                return true;
+            case ACTION_STD_CANCEL:
+                lcd_setfont(FONT_UI);
+                return false;
+        }
+        
+        lcd_clear_display();
+        struct imx233_rtc_info_t info = imx233_rtc_get_info();
+        
+        lcd_putsf(0, 0, "seconds: %lu", info.seconds);
+        for(int i = 0; i < 6; i++)
+            lcd_putsf(0, i + 1, "persistent%d: 0x%lx", i, info.persistent[i]);
+        
+        lcd_update();
+        yield();
+    }
+}
+
 bool dbg_hw_info(void)
 {
     return dbg_hw_info_clkctrl() && dbg_hw_info_dma() && dbg_hw_info_adc() &&
-        dbg_hw_info_power() && dbg_hw_info_powermgmt() && dbg_hw_target_info();
+        dbg_hw_info_power() && dbg_hw_info_powermgmt() && dbg_hw_info_rtc() &&
+        dbg_hw_target_info();
 }
 
 bool dbg_ports(void)
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 */