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Diffstat (limited to 'arch/m68k/cpu/mcf52x2/cpu.c')
-rw-r--r--arch/m68k/cpu/mcf52x2/cpu.c115
1 files changed, 69 insertions, 46 deletions
diff --git a/arch/m68k/cpu/mcf52x2/cpu.c b/arch/m68k/cpu/mcf52x2/cpu.c
index 571d078f89..7c6100c528 100644
--- a/arch/m68k/cpu/mcf52x2/cpu.c
+++ b/arch/m68k/cpu/mcf52x2/cpu.c
@@ -9,6 +9,8 @@
* MCF5275 additions
* Copyright (C) 2008 Arthur Shipkowski (art@videon-central.com)
*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -32,6 +34,7 @@
#include <watchdog.h>
#include <command.h>
#include <asm/immap.h>
+#include <asm/io.h>
#include <netdev.h>
#include "cpu.h"
@@ -40,11 +43,11 @@ DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_M5208
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
+ rcm_t *rcm = (rcm_t *)(MMAP_RCM);
udelay(1000);
- rcm->rcr = RCM_RCR_SOFTRST;
+ out_8(&rcm->rcr, RCM_RCR_SOFTRST);
/* we don't return! */
return 0;
@@ -65,18 +68,21 @@ int checkcpu(void)
/* Called by macro WATCHDOG_RESET */
void watchdog_reset(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
- wdt->sr = 0x5555;
- wdt->sr = 0xAAAA;
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+ out_be16(&wdt->sr, 0x5555);
+ out_be16(&wdt->sr, 0xaaaa);
}
int watchdog_disable(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
- wdt->sr = 0x5555; /* reset watchdog counter */
- wdt->sr = 0xAAAA;
- wdt->cr = 0; /* disable watchdog timer */
+ /* reset watchdog counter */
+ out_be16(&wdt->sr, 0x5555);
+ out_be16(&wdt->sr, 0xaaaa);
+ /* disable watchdog timer */
+ out_be16(&wdt->cr, 0);
puts("WATCHDOG:disabled\n");
return (0);
@@ -84,15 +90,18 @@ int watchdog_disable(void)
int watchdog_init(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
- wdt->cr = 0; /* disable watchdog */
+ /* disable watchdog */
+ out_be16(&wdt->cr, 0);
/* 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;
+ out_be16(&wdt->mr,
+ (CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
+
+ /* reset watchdog counter */
+ out_be16(&wdt->sr, 0x5555);
+ out_be16(&wdt->sr, 0xaaaa);
puts("WATCHDOG:enabled\n");
return (0);
@@ -178,13 +187,13 @@ int watchdog_init(void)
#ifdef CONFIG_M5272
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
+ wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
- wdp->wdog_wrrr = 0;
+ out_be16(&wdp->wdog_wrrr, 0);
udelay(1000);
/* enable watchdog, set timeout to 0 and wait */
- wdp->wdog_wrrr = 1;
+ out_be16(&wdp->wdog_wrrr, 1);
while (1) ;
/* we don't return! */
@@ -193,12 +202,12 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
int checkcpu(void)
{
- volatile sysctrl_t *sysctrl = (sysctrl_t *) (MMAP_CFG);
+ sysctrl_t *sysctrl = (sysctrl_t *) (MMAP_CFG);
uchar msk;
char *suf;
puts("CPU: ");
- msk = (sysctrl->sc_dir > 28) & 0xf;
+ msk = (in_be32(&sysctrl->sc_dir) > 28) & 0xf;
switch (msk) {
case 0x2:
suf = "1K75N";
@@ -221,17 +230,21 @@ int checkcpu(void)
/* Called by macro WATCHDOG_RESET */
void watchdog_reset(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
- wdt->wdog_wcr = 0;
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+ out_be16(&wdt->wdog_wcr, 0);
}
int watchdog_disable(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
- wdt->wdog_wcr = 0; /* reset watchdog counter */
- wdt->wdog_wirr = 0; /* disable watchdog interrupt */
- wdt->wdog_wrrr = 0; /* disable watchdog timer */
+ /* reset watchdog counter */
+ out_be16(&wdt->wdog_wcr, 0);
+ /* disable watchdog interrupt */
+ out_be16(&wdt->wdog_wirr, 0);
+ /* disable watchdog timer */
+ out_be16(&wdt->wdog_wrrr, 0);
puts("WATCHDOG:disabled\n");
return (0);
@@ -239,14 +252,17 @@ int watchdog_disable(void)
int watchdog_init(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
- wdt->wdog_wirr = 0; /* disable watchdog interrupt */
+ /* disable watchdog interrupt */
+ out_be16(&wdt->wdog_wirr, 0);
/* set timeout and enable watchdog */
- wdt->wdog_wrrr =
- ((CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000)) - 1;
- wdt->wdog_wcr = 0; /* reset watchdog counter */
+ out_be16(&wdt->wdog_wrrr,
+ (CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
+
+ /* reset watchdog counter */
+ out_be16(&wdt->wdog_wcr, 0);
puts("WATCHDOG:enabled\n");
return (0);
@@ -258,11 +274,11 @@ int watchdog_init(void)
#ifdef CONFIG_M5275
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
+ rcm_t *rcm = (rcm_t *)(MMAP_RCM);
udelay(1000);
- rcm->rcr = RCM_RCR_SOFTRST;
+ out_8(&rcm->rcr, RCM_RCR_SOFTRST);
/* we don't return! */
return 0;
@@ -282,18 +298,22 @@ int checkcpu(void)
/* Called by macro WATCHDOG_RESET */
void watchdog_reset(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
- wdt->wsr = 0x5555;
- wdt->wsr = 0xAAAA;
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+ out_be16(&wdt->wsr, 0x5555);
+ out_be16(&wdt->wsr, 0xaaaa);
}
int watchdog_disable(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
- wdt->wsr = 0x5555; /* reset watchdog counter */
- wdt->wsr = 0xAAAA;
- wdt->wcr = 0; /* disable watchdog timer */
+ /* reset watchdog counter */
+ out_be16(&wdt->wsr, 0x5555);
+ out_be16(&wdt->wsr, 0xaaaa);
+
+ /* disable watchdog timer */
+ out_be16(&wdt->wcr, 0);
puts("WATCHDOG:disabled\n");
return (0);
@@ -301,15 +321,18 @@ int watchdog_disable(void)
int watchdog_init(void)
{
- volatile wdog_t *wdt = (volatile wdog_t *)(MMAP_WDOG);
+ wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
- wdt->wcr = 0; /* disable watchdog */
+ /* disable watchdog */
+ out_be16(&wdt->wcr, 0);
/* set timeout and enable watchdog */
- wdt->wmr =
- ((CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000)) - 1;
- wdt->wsr = 0x5555; /* reset watchdog counter */
- wdt->wsr = 0xAAAA;
+ out_be16(&wdt->wmr,
+ (CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
+
+ /* reset watchdog counter */
+ out_be16(&wdt->wsr, 0x5555);
+ out_be16(&wdt->wsr, 0xaaaa);
puts("WATCHDOG:enabled\n");
return (0);
generated by cgit (git 2.34.1) at 2024-12-27 01:53:34 +0000