be093beb60
OMAP wishes to pass state to the boot loader upon reboot in order to instruct it whether to wait for USB-based reflashing or not. There is already a facility to do this via the reboot() syscall, except we ignore the string passed to machine_restart(). This patch fixes things to pass this string to arch_reset(). This means that we keep the reboot mode limited to telling the kernel _how_ to perform the reboot which should be independent of what we request the boot loader to do. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
50 lines
978 B
C
50 lines
978 B
C
/*
|
|
* Copied from arch/arm/mach-sa1100/include/mach/system.h
|
|
* Copyright (c) 1999 Nicolas Pitre <nico@cam.org>
|
|
*/
|
|
#ifndef __ASM_ARCH_SYSTEM_H
|
|
#define __ASM_ARCH_SYSTEM_H
|
|
#include <linux/clk.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <mach/hardware.h>
|
|
|
|
#include <mach/prcm.h>
|
|
|
|
#ifndef CONFIG_MACH_VOICEBLUE
|
|
#define voiceblue_reset() do {} while (0)
|
|
#endif
|
|
|
|
static inline void arch_idle(void)
|
|
{
|
|
cpu_do_idle();
|
|
}
|
|
|
|
static inline void omap1_arch_reset(char mode)
|
|
{
|
|
/*
|
|
* Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
|
|
* "Global Software Reset Affects Traffic Controller Frequency".
|
|
*/
|
|
if (cpu_is_omap5912()) {
|
|
omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4),
|
|
DPLL_CTL);
|
|
omap_writew(0x8, ARM_RSTCT1);
|
|
}
|
|
|
|
if (machine_is_voiceblue())
|
|
voiceblue_reset();
|
|
else
|
|
omap_writew(1, ARM_RSTCT1);
|
|
}
|
|
|
|
static inline void arch_reset(char mode, const char *cmd)
|
|
{
|
|
if (!cpu_class_is_omap2())
|
|
omap1_arch_reset(mode);
|
|
else
|
|
omap_prcm_arch_reset(mode);
|
|
}
|
|
|
|
#endif
|