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Diffstat (limited to 'arch/m68k/cpu/mcf523x/cpu.c')
-rw-r--r--arch/m68k/cpu/mcf523x/cpu.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/arch/m68k/cpu/mcf523x/cpu.c b/arch/m68k/cpu/mcf523x/cpu.c
index 2376f970da..a3f568403c 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);