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authorWolfgang Denk <wd@denx.de>2009-08-04 21:54:11 +0200
committerWolfgang Denk <wd@denx.de>2009-08-04 21:54:11 +0200
commitcb32ed1fc298875845f166d326a3f2704a0d5364 (patch)
tree0bfddffa6c6457f87fffd4dd49ebf9698d45bf87 /cpu/mcf52x2/cpu.c
parent06bffc6ea52d4b390843d295d438b2037d12e5fd (diff)
parent052c08916532d1d9c2f69eb9229709c7b2fc1f02 (diff)
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Merge branch 'next' of git://git.denx.de/u-boot-coldfire
Diffstat (limited to 'cpu/mcf52x2/cpu.c')
-rw-r--r--cpu/mcf52x2/cpu.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/cpu/mcf52x2/cpu.c b/cpu/mcf52x2/cpu.c
index 32d6c40..2cfe631 100644
--- a/cpu/mcf52x2/cpu.c
+++ b/cpu/mcf52x2/cpu.c
@@ -34,6 +34,72 @@
#include <asm/immap.h>
#include <netdev.h>
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_M5208
+int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+{
+ volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
+
+ udelay(1000);
+
+ rcm->rcr = RCM_RCR_SOFTRST;
+
+ /* we don't return! */
+ return 0;
+};
+
+int checkcpu(void)
+{
+ char buf1[32], buf2[32];
+
+ printf("CPU: Freescale Coldfire MCF5208\n"
+ " CPU CLK %s MHz BUS CLK %s MHz\n",
+ strmhz(buf1, gd->cpu_clk),
+ strmhz(buf2, gd->bus_clk));
+ return 0;
+};
+
+#if defined(CONFIG_WATCHDOG)
+/* Called by macro WATCHDOG_RESET */
+void watchdog_reset(void)
+{
+ volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdt->sr = 0x5555;
+ wdt->sr = 0xAAAA;
+}
+
+int watchdog_disable(void)
+{
+ volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+
+ wdt->sr = 0x5555; /* reset watchdog counteDECLARE_GLOBAL_DATA_PTR;
+r */
+ wdt->sr = 0xAAAA;
+ wdt->cr = 0; /* disable watchdog timer */
+
+ puts("WATCHDOG:disabled\n");
+ return (0);
+}
+
+int watchdog_init(void)
+{
+ volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+
+ wdt->cr = 0; /* disable watchdog */
+
+ /* set timeout and enable watchdog */
+ wdt->mr =
+ ((CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000)) - 1;
+ wdt->sr = 0x5555; /* reset watchdog counter */
+ wdt->sr = 0xAAAA;
+
+ puts("WATCHDOG:enabled\n");
+ return (0);
+}
+#endif /* #ifdef CONFIG_WATCHDOG */
+#endif /* #ifdef CONFIG_M5208 */
+
#ifdef CONFIG_M5271
/*
* Both MCF5270 and MCF5271 are members of the MPC5271 family. Try to