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added ar7_wdt fix by Alex 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8762 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Matteo Croce 2007-09-12 15:30:00 +00:00
parent cb6ff629c0
commit 09cd45b07a
1 changed files with 25 additions and 22 deletions
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47
target/linux/ar7/files/drivers/char/watchdog/ar7_wdt.c
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@ -55,6 +55,9 @@ static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
#define READ_REG(x) readl((void __iomem*)&(x))
#define WRITE_REG(x,v) writel((v), (void __iomem*)&(x))
struct ar7_wdt {
u32 kick_lock;
u32 kick;
@ -93,11 +96,11 @@ static void ar7_wdt_get_regs(void)
static void ar7_wdt_kick(u32 value)
{
ar7_wdt->kick_lock = 0x5555;
if ((ar7_wdt->kick_lock & 3) == 1) {
ar7_wdt->kick_lock = 0xaaaa;
if ((ar7_wdt->kick_lock & 3) == 3) {
ar7_wdt->kick = value;
WRITE_REG(ar7_wdt->kick_lock, 0x5555);
if ((READ_REG(ar7_wdt->kick_lock) & 3) == 1) {
WRITE_REG(ar7_wdt->kick_lock, 0xaaaa);
if ((READ_REG(ar7_wdt->kick_lock) & 3) == 3) {
WRITE_REG(ar7_wdt->kick, value);
return;
}
}
@ -106,11 +109,11 @@ static void ar7_wdt_kick(u32 value)
static void ar7_wdt_prescale(u32 value)
{
ar7_wdt->prescale_lock = 0x5a5a;
if ((ar7_wdt->prescale_lock & 3) == 1) {
ar7_wdt->prescale_lock = 0xa5a5;
if ((ar7_wdt->prescale_lock & 3) == 3) {
ar7_wdt->prescale = value;
WRITE_REG(ar7_wdt->prescale_lock, 0x5a5a);
if ((READ_REG(ar7_wdt->prescale_lock) & 3) == 1) {
WRITE_REG(ar7_wdt->prescale_lock, 0xa5a5);
if ((READ_REG(ar7_wdt->prescale_lock) & 3) == 3) {
WRITE_REG(ar7_wdt->prescale, value);
return;
}
}
@ -119,11 +122,11 @@ static void ar7_wdt_prescale(u32 value)
static void ar7_wdt_change(u32 value)
{
ar7_wdt->change_lock = 0x6666;
if ((ar7_wdt->change_lock & 3) == 1) {
ar7_wdt->change_lock = 0xbbbb;
if ((ar7_wdt->change_lock & 3) == 3) {
ar7_wdt->change = value;
WRITE_REG(ar7_wdt->change_lock, 0x6666);
if ((READ_REG(ar7_wdt->change_lock) & 3) == 1) {
WRITE_REG(ar7_wdt->change_lock, 0xbbbb);
if ((READ_REG(ar7_wdt->change_lock) & 3) == 3) {
WRITE_REG(ar7_wdt->change, value);
return;
}
}
@ -132,13 +135,13 @@ static void ar7_wdt_change(u32 value)
static void ar7_wdt_disable(u32 value)
{
ar7_wdt->disable_lock = 0x7777;
if ((ar7_wdt->disable_lock & 3) == 1) {
ar7_wdt->disable_lock = 0xcccc;
if ((ar7_wdt->disable_lock & 3) == 2) {
ar7_wdt->disable_lock = 0xdddd;
if ((ar7_wdt->disable_lock & 3) == 3) {
ar7_wdt->disable = value;
WRITE_REG(ar7_wdt->disable_lock, 0x7777);
if ((READ_REG(ar7_wdt->disable_lock) & 3) == 1) {
WRITE_REG(ar7_wdt->disable_lock, 0xcccc);
if ((READ_REG(ar7_wdt->disable_lock) & 3) == 2) {
WRITE_REG(ar7_wdt->disable_lock, 0xdddd);
if ((READ_REG(ar7_wdt->disable_lock) & 3) == 3) {
WRITE_REG(ar7_wdt->disable, value);
return;
}
}