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| author | TsiChung Liew <tsicliew@gmail.com> | 2009-06-12 11:29:00 +0000 |
|---|---|---|
| committer | TsiChung Liew <Tsi-Chung.Liew@freescale.com> | 2009-07-14 09:27:17 -0500 |
| commit | bf9a521529e484b15e8fdb583a607cf7945d2f6b (patch) | |
| tree | e7af9ed55c84ef664ab9b7d92e91a4fbdf9c800a /cpu/mcf52x2/cpu.c | |
| parent | 709b384b6493d9726dce20663ebe31bf7cab2925 (diff) | |
| download | u-boot-imx-bf9a521529e484b15e8fdb583a607cf7945d2f6b.zip u-boot-imx-bf9a521529e484b15e8fdb583a607cf7945d2f6b.tar.gz u-boot-imx-bf9a521529e484b15e8fdb583a607cf7945d2f6b.tar.bz2 | |
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.c | 66 |
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 |