diff options
Diffstat (limited to 'arch/m68k/cpu/mcf523x/cpu.c')
| -rw-r--r-- | arch/m68k/cpu/mcf523x/cpu.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/arch/m68k/cpu/mcf523x/cpu.c b/arch/m68k/cpu/mcf523x/cpu.c index 2376f970d..a3f568403 100644 --- a/arch/m68k/cpu/mcf523x/cpu.c +++ b/arch/m68k/cpu/mcf523x/cpu.c @@ -3,7 +3,7 @@ * (C) Copyright 2000-2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * - * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc. * TsiChung Liew (Tsi-Chung.Liew@freescale.com) * * See file CREDITS for list of people who contributed to this @@ -31,28 +31,29 @@ #include <netdev.h> #include <asm/immap.h> +#include <asm/io.h> DECLARE_GLOBAL_DATA_PTR; int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { - volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; + ccm_t *ccm = (ccm_t *) MMAP_CCM; - ccm->rcr = CCM_RCR_SOFTRST; + out_8(&ccm->rcr, CCM_RCR_SOFTRST); /* we don't return! */ return 0; -}; +} int checkcpu(void) { - volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; + ccm_t *ccm = (ccm_t *) MMAP_CCM; u16 msk; u16 id = 0; u8 ver; puts("CPU: "); - msk = (ccm->cir >> 6); - ver = (ccm->cir & 0x003f); + msk = (in_be16(&ccm->cir) >> 6); + ver = (in_be16(&ccm->cir) & 0x003f); switch (msk) { case 0x31: id = 5235; @@ -76,19 +77,21 @@ int checkcpu(void) /* Called by macro WATCHDOG_RESET */ void watchdog_reset(void) { - volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); + wdog_t *wdp = (wdog_t *) (MMAP_WDOG); - wdp->sr = 0x5555; /* Count register */ + /* Count register */ + out_be16(&wdp->sr, 0x5555); asm("nop"); - wdp->sr = 0xAAAA; /* Count register */ + out_be16(&wdp->sr, 0xaaaa); } int watchdog_disable(void) { - volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); + wdog_t *wdp = (wdog_t *) (MMAP_WDOG); /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ - wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */ + /* halted watchdog timer */ + setbits_be16(&wdp->cr, WTM_WCR_HALTED); puts("WATCHDOG:disabled\n"); return (0); @@ -96,15 +99,15 @@ int watchdog_disable(void) int watchdog_init(void) { - volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); + wdog_t *wdp = (wdog_t *) (MMAP_WDOG); u32 wdog_module = 0; /* set timeout and enable watchdog */ wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT); wdog_module |= (wdog_module / 8192); - wdp->mr = wdog_module; + out_be16(&wdp->mr, wdog_module); - wdp->cr = WTM_WCR_EN; + out_be16(&wdp->cr, WTM_WCR_EN); puts("WATCHDOG:enabled\n"); return (0); |