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authorFlorian Fainelli <florian@openwrt.org>2011-02-21 13:28:02 (GMT)
committerRalf Baechle <ralf@linux-mips.org>2011-03-14 20:07:28 (GMT)
commit9ced975711d605d7deb27ef027e0f9816a51b479 (patch)
treed7f83301bd4d2b54319051899b1ade5c5237005f /arch/mips/alchemy/xxs1500/board_setup.c
parentbf3a1eb85967dcbaae42f4fcb53c2392cec32677 (diff)
MIPS: Alchemy: Fix reset for MTX-1 and XXS1500
Since commit 32fd6901 (MIPS: Alchemy: get rid of common/reset.c) Alchemy-based boards use their own reset function. For MTX-1 and XXS1500, the reset function pokes at the BCSR.SYSTEM_RESET register, but this does not work. According to Bruno Randolf, this was not tested when written. Previously, the generic au1000_restart() routine called the board specific reset function, which for MTX-1 and XXS1500 did not work, but finally made a jump to the reset vector, which really triggers a system restart. Fix reboot for both targets by jumping to the reset vector. Signed-off-by: Florian Fainelli <florian@openwrt.org> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2093/ Acked-by: Bruno Randolf <br1@einfach.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/alchemy/xxs1500/board_setup.c')
-rw-r--r--arch/mips/alchemy/xxs1500/board_setup.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/alchemy/xxs1500/board_setup.c b/arch/mips/alchemy/xxs1500/board_setup.c
index b43c918..80c521e 100644
--- a/arch/mips/alchemy/xxs1500/board_setup.c
+++ b/arch/mips/alchemy/xxs1500/board_setup.c
@@ -36,8 +36,8 @@
static void xxs1500_reset(char *c)
{
- /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
- au_writel(0x00000000, 0xAE00001C);
+ /* Jump to the reset vector */
+ __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
}
static void xxs1500_power_off(void)

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