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[ARM] pass reboot command line to arch_reset()

Browse source 
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>
This commit is contained in:
Russell King 2009-03-19 16:20:24 +00:00 committed by Russell King
parent 14b6848bc0
commit be093beb60
50 changed files with 65 additions and 65 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
arch/arm/include/asm/system.h
View file

@ -97,8 +97,8 @@ extern void __show_regs(struct pt_regs *);
extern int cpu_architecture(void);
extern void cpu_init(void);
void arm_machine_restart(char mode);
extern void (*arm_pm_restart)(char str);
void arm_machine_restart(char mode, const char *cmd);
extern void (*arm_pm_restart)(char str, const char *cmd);
#define UDBG_UNDEFINED (1 << 0)
#define UDBG_SYSCALL (1 << 1)

10
arch/arm/kernel/process.c
View file

@ -83,7 +83,7 @@ static int __init hlt_setup(char *__unused)
__setup("nohlt", nohlt_setup);
__setup("hlt", hlt_setup);
void arm_machine_restart(char mode)
void arm_machine_restart(char mode, const char *cmd)
{
/*
* Clean and disable cache, and turn off interrupts
@ -100,7 +100,7 @@ void arm_machine_restart(char mode)
/*
* Now call the architecture specific reboot code.
*/
arch_reset(mode);
arch_reset(mode, cmd);
/*
* Whoops - the architecture was unable to reboot.
@ -120,7 +120,7 @@ EXPORT_SYMBOL(pm_idle);
void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);
void (*arm_pm_restart)(char str) = arm_machine_restart;
void (*arm_pm_restart)(char str, const char *cmd) = arm_machine_restart;
EXPORT_SYMBOL_GPL(arm_pm_restart);
@ -195,9 +195,9 @@ void machine_power_off(void)
pm_power_off();
}
void machine_restart(char * __unused)
void machine_restart(char *cmd)
{
arm_pm_restart(reboot_mode);
arm_pm_restart(reboot_mode, cmd);
}
void __show_regs(struct pt_regs *regs)

2
arch/arm/mach-aaec2000/include/mach/system.h
View file

@ -16,7 +16,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
cpu_reset(0);
}

2
arch/arm/mach-at91/include/mach/system.h
View file

@ -43,7 +43,7 @@ static inline void arch_idle(void)
void (*at91_arch_reset)(void);
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/* call the CPU-specific reset function */
if (at91_arch_reset)

2
arch/arm/mach-clps711x/include/mach/system.h
View file

@ -32,7 +32,7 @@ static inline void arch_idle(void)
mov r0, r0");
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
cpu_reset(0);
}

2
arch/arm/mach-davinci/include/mach/system.h
View file

@ -21,7 +21,7 @@ static void arch_idle(void)
cpu_do_idle();
}
static void arch_reset(char mode)
static void arch_reset(char mode, const char *cmd)
{
davinci_watchdog_reset();
}

2
arch/arm/mach-ebsa110/include/mach/system.h
View file

@ -34,6 +34,6 @@ static inline void arch_idle(void)
asm volatile ("mcr p15, 0, ip, c15, c1, 2" : : : "cc");
}
#define arch_reset(mode) cpu_reset(0x80000000)
#define arch_reset(mode, cmd) cpu_reset(0x80000000)
#endif

2
arch/arm/mach-ep93xx/include/mach/system.h
View file

@ -9,7 +9,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
u32 devicecfg;

2
arch/arm/mach-footbridge/include/mach/system.h
View file

@ -18,7 +18,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
if (mode == 's') {
/*

2
arch/arm/mach-h720x/include/mach/system.h
View file

@ -25,7 +25,7 @@ static void arch_idle(void)
}
static __inline__ void arch_reset(char mode)
static __inline__ void arch_reset(char mode, const char *cmd)
{
CPU_REG (PMU_BASE, PMU_STAT) |= PMU_WARMRESET;
}

2
arch/arm/mach-imx/include/mach/system.h
View file

@ -32,7 +32,7 @@ arch_idle(void)
}
static inline void
arch_reset(char mode)
arch_reset(char mode, const char *cmd)
{
cpu_reset(0);
}

2
arch/arm/mach-integrator/include/mach/system.h
View file

@ -32,7 +32,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/*
* To reset, we hit the on-board reset register

2
arch/arm/mach-iop13xx/include/mach/system.h
View file

@ -13,7 +13,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/*
* Reset the internal bus (warning both cores are reset)

2
arch/arm/mach-iop32x/include/mach/system.h
View file

@ -16,7 +16,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
local_irq_disable();

2
arch/arm/mach-iop33x/include/mach/system.h
View file

@ -14,7 +14,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
*IOP3XX_PCSR = 0x30;

2
arch/arm/mach-ixp2000/include/mach/system.h
View file

@ -17,7 +17,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
local_irq_disable();

2
arch/arm/mach-ixp23xx/include/mach/system.h
View file

@ -19,7 +19,7 @@ static inline void arch_idle(void)
#endif
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/* First try machine specific support */
if (machine_is_ixdp2351()) {

2
arch/arm/mach-ixp4xx/include/mach/system.h
View file

@ -20,7 +20,7 @@ static inline void arch_idle(void)
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
if ( 1 && mode == 's') {
/* Jump into ROM at address 0 */

2
arch/arm/mach-kirkwood/include/mach/system.h
View file

@ -17,7 +17,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/*
* Enable soft reset to assert RSTOUTn.

2
arch/arm/mach-ks8695/include/mach/system.h
View file

@ -27,7 +27,7 @@ static void arch_idle(void)
}
static void arch_reset(char mode)
static void arch_reset(char mode, const char *cmd)
{
unsigned int reg;

2
arch/arm/mach-l7200/include/mach/system.h
View file

@ -19,7 +19,7 @@ static inline void arch_idle(void)
*(unsigned long *)(IO_BASE + 0x50004) = 1; /* idle mode */
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
if (mode == 's') {
cpu_reset(0);

2
arch/arm/mach-lh7a40x/include/mach/system.h
View file

@ -13,7 +13,7 @@ static inline void arch_idle(void)
cpu_do_idle ();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
cpu_reset (0);
}

2
arch/arm/mach-loki/include/mach/system.h
View file

@ -17,7 +17,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/*
* Enable soft reset to assert RSTOUTn.

2
arch/arm/mach-msm/include/mach/system.h
View file

@ -17,7 +17,7 @@
void arch_idle(void);
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
for (;;) ; /* depends on IPC w/ other core */
}

2
arch/arm/mach-mv78xx0/include/mach/system.h
View file

@ -17,7 +17,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/*
* Enable soft reset to assert RSTOUTn.

2
arch/arm/mach-mx2/system.c
View file

@ -46,7 +46,7 @@ void arch_idle(void)
/*
* Reset the system. It is called by machine_restart().
*/
void arch_reset(char mode)
void arch_reset(char mode, const char *cmd)
{
struct clk *clk;

2
arch/arm/mach-netx/include/mach/system.h
View file

@ -28,7 +28,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
writel(NETX_SYSTEM_RES_CR_FIRMW_RES_EN | NETX_SYSTEM_RES_CR_FIRMW_RES,
NETX_SYSTEM_RES_CR);

2
arch/arm/mach-ns9xxx/include/mach/system.h
View file

@ -20,7 +20,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
#ifdef CONFIG_PROCESSOR_NS9360
if (processor_is_ns9360())

2
arch/arm/mach-orion5x/include/mach/system.h
View file

@ -19,7 +19,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
/*
* Enable and issue soft reset

2
arch/arm/mach-orion5x/lsmini-setup.c
View file

@ -186,7 +186,7 @@ static struct mv_sata_platform_data lsmini_sata_data = {
static void lsmini_power_off(void)
{
arch_reset(0);
arch_reset(0, NULL);
}

2
arch/arm/mach-pnx4008/include/mach/system.h
View file

@ -30,7 +30,7 @@ static void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
cpu_reset(0);
}

6
arch/arm/mach-pxa/corgi.c
View file

@ -635,16 +635,16 @@ static void corgi_poweroff(void)
/* Green LED off tells the bootloader to halt */
gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
arm_machine_restart('h');
arm_machine_restart('h', NULL);
}
static void corgi_restart(char mode)
static void corgi_restart(char mode, const char *cmd)
{
if (!machine_is_corgi())
/* Green LED on tells the bootloader to reboot */
gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
arm_machine_restart('h');
arm_machine_restart('h', cmd);
}
static void __init corgi_init(void)

2
arch/arm/mach-pxa/include/mach/system.h
View file

@ -20,4 +20,4 @@ static inline void arch_idle(void)
}
void arch_reset(char mode);
void arch_reset(char mode, const char *cmd);

6
arch/arm/mach-pxa/mioa701.c
View file

@ -788,13 +788,13 @@ static void mioa701_machine_exit(void);
static void mioa701_poweroff(void)
{
mioa701_machine_exit();
arm_machine_restart('s');
arm_machine_restart('s', NULL);
}
static void mioa701_restart(char c)
static void mioa701_restart(char c, const char *cmd)
{
mioa701_machine_exit();
arm_machine_restart('s');
arm_machine_restart('s', cmd);
}
struct gpio_ress global_gpios[] = {

6
arch/arm/mach-pxa/poodle.c
View file

@ -501,12 +501,12 @@ static struct platform_device *devices[] __initdata = {
static void poodle_poweroff(void)
{
arm_machine_restart('h');
arm_machine_restart('h', NULL);
}
static void poodle_restart(char mode)
static void poodle_restart(char mode, const char *cmd)
{
arm_machine_restart('h');
arm_machine_restart('h', cmd);
}
static void __init poodle_init(void)

2
arch/arm/mach-pxa/reset.c
View file

@ -81,7 +81,7 @@ static void do_hw_reset(void)
OSMR3 = OSCR + 368640; /* ... in 100 ms */
}
void arch_reset(char mode)
void arch_reset(char mode, const char *cmd)
{
clear_reset_status(RESET_STATUS_ALL);

4
arch/arm/mach-pxa/spitz.c
View file

@ -701,10 +701,10 @@ static struct platform_device *devices[] __initdata = {
static void spitz_poweroff(void)
{
arm_machine_restart('g');
arm_machine_restart('g', NULL);
}
static void spitz_restart(char mode)
static void spitz_restart(char mode, const char *cmd)
{
/* Bootloader magic for a reboot */
if((MSC0 & 0xffff0000) == 0x7ff00000)

4
arch/arm/mach-pxa/tosa.c
View file

@ -876,10 +876,10 @@ static struct platform_device *devices[] __initdata = {
static void tosa_poweroff(void)
{
arm_machine_restart('g');
arm_machine_restart('g', NULL);
}
static void tosa_restart(char mode)
static void tosa_restart(char mode, const char *cmd)
{
/* Bootloader magic for a reboot */
if((MSC0 & 0xffff0000) == 0x7ff00000)

2
arch/arm/mach-realview/include/mach/system.h
View file

@ -34,7 +34,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
void __iomem *hdr_ctrl = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_RESETCTL_OFFSET;
unsigned int val;

2
arch/arm/mach-rpc/include/mach/system.h
View file

@ -16,7 +16,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
iomd_writeb(0, IOMD_ROMCR0);

2
arch/arm/mach-s3c2410/include/mach/system-reset.h
View file

@ -22,7 +22,7 @@
extern void (*s3c24xx_reset_hook)(void);
static void
arch_reset(char mode)
arch_reset(char mode, const char *cmd)
{
struct clk *wdtclk;

2
arch/arm/mach-s3c6400/include/mach/system.h
View file

@ -16,7 +16,7 @@ static void arch_idle(void)
/* nothing here yet */
}
static void arch_reset(char mode)
static void arch_reset(char mode, const char *cmd)
{
/* nothing here yet */
}

2
arch/arm/mach-sa1100/include/mach/system.h
View file

@ -10,7 +10,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
if (mode == 's') {
/* Jump into ROM at address 0 */

2
arch/arm/mach-shark/core.c
View file

@ -26,7 +26,7 @@
#define ROMCARD_SIZE 0x08000000
#define ROMCARD_START 0x10000000
void arch_reset(char mode)
void arch_reset(char mode, const char *cmd)
{
short temp;
local_irq_disable();

2
arch/arm/mach-shark/include/mach/system.h
View file

@ -7,7 +7,7 @@
#define __ASM_ARCH_SYSTEM_H
/* Found in arch/mach-shark/core.c */
extern void arch_reset(char mode);
extern void arch_reset(char mode, const char *cmd);
static inline void arch_idle(void)
{

2
arch/arm/mach-versatile/include/mach/system.h
View file

@ -34,7 +34,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
u32 val;

2
arch/arm/mach-w90x900/include/mach/system.h
View file

@ -21,7 +21,7 @@ static void arch_idle(void)
{
}
static void arch_reset(char mode)
static void arch_reset(char mode, const char *cmd)
{
cpu_reset(0);
}

2
arch/arm/plat-mxc/include/mach/system.h
View file

@ -26,7 +26,7 @@ static inline void arch_idle(void)
cpu_do_idle();
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
cpu_reset(0);
}

2
arch/arm/plat-omap/include/mach/system.h
View file

@ -38,7 +38,7 @@ static inline void omap1_arch_reset(char mode)
omap_writew(1, ARM_RSTCT1);
}
static inline void arch_reset(char mode)
static inline void arch_reset(char mode, const char *cmd)
{
if (!cpu_class_is_omap2())
omap1_arch_reset(mode);

6
arch/arm/plat-s3c24xx/cpu.c
View file

@ -182,7 +182,7 @@ static unsigned long s3c24xx_read_idcode_v4(void)
* with the caches enabled. It seems at least the S3C2440 has a problem
* resetting if there is bus activity interrupted by the reset.
*/
static void s3c24xx_pm_restart(char mode)
static void s3c24xx_pm_restart(char mode, const char *cmd)
{
if (mode != 's') {
unsigned long flags;
@ -191,12 +191,12 @@ static void s3c24xx_pm_restart(char mode)
__cpuc_flush_kern_all();
__cpuc_flush_user_all();
arch_reset(mode);
arch_reset(mode, cmd);
local_irq_restore(flags);
}
/* fallback, or unhandled */
arm_machine_restart(mode);
arm_machine_restart(mode, cmd);
}
void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)