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| author | Matthew Fettke <[matthew.fettke@gmail.com]> | 2008-02-04 15:38:20 -0600 |
|---|---|---|
| committer | John Rigby <jrigby@freescale.com> | 2008-03-31 15:09:08 -0600 |
| commit | f71d9d91a2cd9c30b2b6369f15c1a46c11537c2b (patch) | |
| tree | ce257bd89e793dd65e3ab2dddb37bf27e24fa191 /cpu/mcf52x2/cpu.c | |
| parent | 44e5b9edab077aba6e9b849afa4b7fbd8fd7b02b (diff) | |
| download | u-boot-imx-f71d9d91a2cd9c30b2b6369f15c1a46c11537c2b.zip u-boot-imx-f71d9d91a2cd9c30b2b6369f15c1a46c11537c2b.tar.gz u-boot-imx-f71d9d91a2cd9c30b2b6369f15c1a46c11537c2b.tar.bz2 | |
ColdFire: Added MCF5275 cpu support.
Signed-off-by: Matthew Fettke <mfettke@videon-central.com>
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Acked-by: John Rigby <jrigby@freescale.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 71ea408..d5d3d33 100644 --- a/cpu/mcf52x2/cpu.c +++ b/cpu/mcf52x2/cpu.c @@ -6,6 +6,9 @@ * (C) Copyright 2005 * BuS Elektronik GmbH & Co. KG <esw@bus-elektronik.de> * + * MCF5275 additions + * Copyright (C) 2008 Arthur Shipkowski (art@videon-central.com) + * * See file CREDITS for list of people who contributed to this * project. * @@ -180,6 +183,69 @@ int watchdog_init(void) #endif /* #ifdef CONFIG_M5272 */ +#ifdef CONFIG_M5275 +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 buf[32]; + + printf("CPU: Freescale Coldfire MCF5275 at %s MHz\n", + strmhz(buf, CFG_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->wsr = 0x5555; + wdt->wsr = 0xAAAA; +} + +int watchdog_disable(void) +{ + volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG); + + wdt->wsr = 0x5555; /* reset watchdog counter */ + wdt->wsr = 0xAAAA; + wdt->wcr = 0; /* disable watchdog timer */ + + puts("WATCHDOG:disabled\n"); + return (0); +} + +int watchdog_init(void) +{ + volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG); + + wdt->wcr = 0; /* disable watchdog */ + + /* set timeout and enable watchdog */ + wdt->wmr = + ((CONFIG_WATCHDOG_TIMEOUT * CFG_HZ) / (32768 * 1000)) - 1; + wdt->wsr = 0x5555; /* reset watchdog counter */ + wdt->wsr = 0xAAAA; + + puts("WATCHDOG:enabled\n"); + return (0); +} +#endif /* #ifdef CONFIG_WATCHDOG */ + +#endif /* #ifdef CONFIG_M5275 */ + #ifdef CONFIG_M5282 int checkcpu(void) { |