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MIPS: BCM63xx: Fix soft-reset lockup on BCM6345

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This patch fixes a lockup on BCM6345 where setting the PLL soft reset bit
will also lock the other blocks including UART.  Instead of setting only
the PLL soft reset bit in the software reset register, set this bit but do
not touch the others.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Florian Fainelli 2009-08-31 20:27:39 +02:00 committed by Ralf Baechle
parent a2e62f3a85
commit e85d59df13
1 changed files with 3 additions and 1 deletions
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4
arch/mips/bcm63xx/setup.c
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@ -75,7 +75,9 @@ void bcm63xx_machine_reboot(void)
bcm6348_a1_reboot();
printk(KERN_INFO "triggering watchdog soft-reset...\n");
bcm_perf_writel(SYS_PLL_SOFT_RESET, PERF_SYS_PLL_CTL_REG);
reg = bcm_perf_readl(PERF_SYS_PLL_CTL_REG);
reg |= SYS_PLL_SOFT_RESET;
bcm_perf_writel(reg, PERF_SYS_PLL_CTL_REG);
while (1)
;
}