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| author | Florian Fainelli <florian@openwrt.org> | 2011-02-21 14:28:02 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-03-14 21:07:28 +0100 |
| commit | 9ced975711d605d7deb27ef027e0f9816a51b479 (patch) | |
| tree | d7f83301bd4d2b54319051899b1ade5c5237005f /arch/mips | |
| parent | bf3a1eb85967dcbaae42f4fcb53c2392cec32677 (diff) | |
| download | blackbird-obmc-linux-9ced975711d605d7deb27ef027e0f9816a51b479.tar.gz blackbird-obmc-linux-9ced975711d605d7deb27ef027e0f9816a51b479.zip | |
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')
| -rw-r--r-- | arch/mips/alchemy/mtx-1/board_setup.c | 4 | ||||
| -rw-r--r-- | arch/mips/alchemy/xxs1500/board_setup.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/mips/alchemy/mtx-1/board_setup.c b/arch/mips/alchemy/mtx-1/board_setup.c index 6398fa95905c..40b84b991191 100644 --- a/arch/mips/alchemy/mtx-1/board_setup.c +++ b/arch/mips/alchemy/mtx-1/board_setup.c @@ -54,8 +54,8 @@ int mtx1_pci_idsel(unsigned int devsel, int assert); static void mtx1_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 mtx1_power_off(void) diff --git a/arch/mips/alchemy/xxs1500/board_setup.c b/arch/mips/alchemy/xxs1500/board_setup.c index b43c918925d3..80c521e5290d 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) |
