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authorTsiChung Liew <tsicliew@gmail.com>2009-06-12 11:29:00 +0000
committerTsiChung Liew <Tsi-Chung.Liew@freescale.com>2009-07-14 09:27:17 -0500
commitbf9a521529e484b15e8fdb583a607cf7945d2f6b (patch)
treee7af9ed55c84ef664ab9b7d92e91a4fbdf9c800a /cpu/mcf52x2/cpu.c
parent709b384b6493d9726dce20663ebe31bf7cab2925 (diff)
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ColdFire: Add M5208EVB and MCF520x CPU support
Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
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