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ARM: i.MX system: Add a reset fallback if base address of watchdog is not set

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This patch adds a reset fallback if base address of watchdog is not set.
This is intended for a targets not compatible with imx-21 watchdog,
i.MX1 for example.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This commit is contained in:
Alexander Shiyan 2014-06-13 11:26:13 +04:00 • committed by Shawn Guo
parent ce8ad88387
commit 5a6e1502eb
1 changed files with 4 additions and 0 deletions
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4
arch/arm/mach-imx/system.c
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@ -42,6 +42,9 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
{ {
unsigned int wcr_enable; unsigned int wcr_enable;
if (!wdog_base)
goto reset_fallback;
if (!IS_ERR(wdog_clk)) if (!IS_ERR(wdog_clk))
clk_enable(wdog_clk); clk_enable(wdog_clk);
@ -70,6 +73,7 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
/* delay to allow the serial port to show the message */ /* delay to allow the serial port to show the message */
mdelay(50); mdelay(50);
reset_fallback:
/* we'll take a jump through zero as a poor second */ /* we'll take a jump through zero as a poor second */
soft_restart(0); soft_restart(0);
} }