linux-kernel-test/arch/arm/mach-orion5x/include/mach/system.h
Benjamin Herrenschmidt 445f12dca8 [ARM] orion5x: Fix soft-reset for some platforms
Some platforms, such as the DNS-323 rev C requires the soft reset line
to be toggled on and back off for the reset to work.

Note: The choice of 200ms delay comes from the 2.6.12 based vendor kernel.
It seems to be a -lot- though and I had my device working fine with much
smaller delays but better safe...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
2010-07-16 22:01:58 -04:00

34 lines
677 B
C

/*
* arch/arm/mach-orion5x/include/mach/system.h
*
* Tzachi Perelstein <tzachi@marvell.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#ifndef __ASM_ARCH_SYSTEM_H
#define __ASM_ARCH_SYSTEM_H
#include <mach/bridge-regs.h>
static inline void arch_idle(void)
{
cpu_do_idle();
}
static inline void arch_reset(char mode, const char *cmd)
{
/*
* Enable and issue soft reset
*/
orion5x_setbits(RSTOUTn_MASK, (1 << 2));
orion5x_setbits(CPU_SOFT_RESET, 1);
mdelay(200);
orion5x_clrbits(CPU_SOFT_RESET, 1);
}
#endif