Commit 9ced9757 authored by Florian Fainelli's avatar Florian Fainelli Committed by Ralf Baechle
Browse files

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: default avatarFlorian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2093/

Acked-by: default avatarBruno Randolf <br1@einfach.org>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent bf3a1eb8
......@@ -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)
......
......@@ -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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