* [PATCH v7 1/6] watchdog: pnx4008: update logging during power-on
2016-03-04 18:44 [PATCH v7 0/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
@ 2016-03-04 18:44 ` Sylvain Lemieux
2016-03-04 18:44 ` [PATCH v7 2/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
` (4 subsequent siblings)
5 siblings, 0 replies; 10+ messages in thread
From: Sylvain Lemieux @ 2016-03-04 18:44 UTC (permalink / raw)
To: linux-arm-kernel
From: Sylvain Lemieux <slemieux@tycoint.com>
There is no need to add the driver name in the text to display
on the console during the power-on:
pnx4008-watchdog 4003c000.watchdog: PNX4008 Watchdog Timer: heartbeat 19 sec
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
---
Changes from v6 to v7:
- none.
Changes from v5 to v6:
- none.
Changes from v4 to v5:
- Added Reviewed-by from v4.
Changes from v3 to v4:
- none.
Changes from v2 to v3:
- none.
Changes from v1 to v2:
- new patch in v2.
drivers/watchdog/pnx4008_wdt.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 313cd1c..88264a2 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -178,8 +178,7 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
goto disable_clk;
}
- dev_info(&pdev->dev, "PNX4008 Watchdog Timer: heartbeat %d sec\n",
- pnx4008_wdd.timeout);
+ dev_info(&pdev->dev, "heartbeat %d sec\n", pnx4008_wdd.timeout);
return 0;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v7 2/6] watchdog: pnx4008: add restart handler
2016-03-04 18:44 [PATCH v7 0/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
2016-03-04 18:44 ` [PATCH v7 1/6] watchdog: pnx4008: update logging during power-on Sylvain Lemieux
@ 2016-03-04 18:44 ` Sylvain Lemieux
2016-03-04 18:44 ` [PATCH v7 3/6] watchdog: pnx4008: add support for soft reset Sylvain Lemieux
` (3 subsequent siblings)
5 siblings, 0 replies; 10+ messages in thread
From: Sylvain Lemieux @ 2016-03-04 18:44 UTC (permalink / raw)
To: linux-arm-kernel
From: Sylvain Lemieux <slemieux@tycoint.com>
Add restart handler capability to the driver;
the restart handler implementation was taken from
"mach-lpc32xx" ("lpc23xx_restart" function).
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
---
Changes from v6 to v7:
- Added Reviewed-by from v6.
Changes from v5 to v6:
- none.
Changes from v4 to v5:
- Rebased on the following patch:
http://permalink.gmane.org/gmane.linux.watchdog/3364/
Changes from v3 to v4:
- none.
Changes from v2 to v3:
- remove explicit clock enable from restart handler.
- verify "register_restart_handler" return value.
- add call to unregister_restart_handler".
- do the restart handling directly in "pnx4008_restart_handler".
Changes from v1 to v2:
- new patch in v2.
drivers/watchdog/pnx4008_wdt.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 88264a2..f3be522 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -31,6 +31,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/of.h>
+#include <linux/delay.h>
+#include <linux/reboot.h>
#include <mach/hardware.h>
/* WatchDog Timer - Chapter 23 Page 207 */
@@ -124,6 +126,19 @@ static int pnx4008_wdt_set_timeout(struct watchdog_device *wdd,
return 0;
}
+static int pnx4008_restart_handler(struct watchdog_device *wdd,
+ unsigned long mode, void *cmd)
+{
+ /* Instant assert of RESETOUT_N with pulse length 1mS */
+ writel(13000, WDTIM_PULSE(wdt_base));
+ writel(M_RES2 | RESFRC1 | RESFRC2, WDTIM_MCTRL(wdt_base));
+
+ /* Wait for watchdog to reset system */
+ mdelay(1000);
+
+ return NOTIFY_DONE;
+}
+
static const struct watchdog_info pnx4008_wdt_ident = {
.options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE |
WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
@@ -135,6 +150,7 @@ static const struct watchdog_ops pnx4008_wdt_ops = {
.start = pnx4008_wdt_start,
.stop = pnx4008_wdt_stop,
.set_timeout = pnx4008_wdt_set_timeout,
+ .restart = pnx4008_restart_handler,
};
static struct watchdog_device pnx4008_wdd = {
@@ -169,6 +185,7 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
WDIOF_CARDRESET : 0;
pnx4008_wdd.parent = &pdev->dev;
watchdog_set_nowayout(&pnx4008_wdd, nowayout);
+ watchdog_set_restart_priority(&pnx4008_wdd, 128);
pnx4008_wdt_stop(&pnx4008_wdd); /* disable for now */
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v7 3/6] watchdog: pnx4008: add support for soft reset
2016-03-04 18:44 [PATCH v7 0/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
2016-03-04 18:44 ` [PATCH v7 1/6] watchdog: pnx4008: update logging during power-on Sylvain Lemieux
2016-03-04 18:44 ` [PATCH v7 2/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
@ 2016-03-04 18:44 ` Sylvain Lemieux
2016-03-04 18:44 ` [PATCH v7 4/6] watchdog: pnx4008: restart: support "cmd" from userspace Sylvain Lemieux
` (2 subsequent siblings)
5 siblings, 0 replies; 10+ messages in thread
From: Sylvain Lemieux @ 2016-03-04 18:44 UTC (permalink / raw)
To: linux-arm-kernel
From: Sylvain Lemieux <slemieux@tycoint.com>
Add support for explicit soft reset using the reboot mode.
The default reboot mode behavior is unchanged;
you can overwrite the default reboot type in the board specific file
"DT_MACHINE_START" definition using the "reboot_mode" parameter.
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
---
Changes from v6 to v7:
- Added Reviewed-by from v6.
Changes from v5 to v6:
- remove typecast.
Changes from v4 to v5:
- no logical change; updated to work with new revision of patch #2.
Changes from v3 to v4:
- none.
Changes from v2 to v3:
- no logical change; updated to work with new revision of patch #2.
Changes from v1 to v2:
- Rename patch title;
was "arm: lpc32xx: restart: add support for soft reset"
- Add change to "pnx-4008" driver instead of "mach-lpc32xx".
- Use define available in "pnx-4008" when writting to watchdog register.
drivers/watchdog/pnx4008_wdt.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index f3be522..51be66e 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -129,9 +129,16 @@ static int pnx4008_wdt_set_timeout(struct watchdog_device *wdd,
static int pnx4008_restart_handler(struct watchdog_device *wdd,
unsigned long mode, void *cmd)
{
- /* Instant assert of RESETOUT_N with pulse length 1mS */
- writel(13000, WDTIM_PULSE(wdt_base));
- writel(M_RES2 | RESFRC1 | RESFRC2, WDTIM_MCTRL(wdt_base));
+ if (mode == REBOOT_SOFT) {
+ /* Force match output active */
+ writel(EXT_MATCH0, WDTIM_EMR(wdt_base));
+ /* Internal reset on match output (RESOUT_N not asserted) */
+ writel(M_RES1, WDTIM_MCTRL(wdt_base));
+ } else {
+ /* Instant assert of RESETOUT_N with pulse length 1mS */
+ writel(13000, WDTIM_PULSE(wdt_base));
+ writel(M_RES2 | RESFRC1 | RESFRC2, WDTIM_MCTRL(wdt_base));
+ }
/* Wait for watchdog to reset system */
mdelay(1000);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v7 4/6] watchdog: pnx4008: restart: support "cmd" from userspace
2016-03-04 18:44 [PATCH v7 0/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
` (2 preceding siblings ...)
2016-03-04 18:44 ` [PATCH v7 3/6] watchdog: pnx4008: add support for soft reset Sylvain Lemieux
@ 2016-03-04 18:44 ` Sylvain Lemieux
2016-03-04 23:14 ` Guenter Roeck
2016-03-04 18:44 ` [PATCH v7 5/6] arm: lpc32xx: phy3250 remove restart hook Sylvain Lemieux
2016-03-04 18:44 ` [PATCH v7 6/6] arm: lpc32xx: remove restart handler Sylvain Lemieux
5 siblings, 1 reply; 10+ messages in thread
From: Sylvain Lemieux @ 2016-03-04 18:44 UTC (permalink / raw)
To: linux-arm-kernel
From: Sylvain Lemieux <slemieux@tycoint.com>
Added support to verify if a "cmd" is passed from the userspace program rebooting the system;
- if a valid "cmd" is available, handle it;
- If the received "cmd" is not supported, use the default reboot mode.
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
---
Changes from v6 to v7:
- remove typecast.
Changes from v5 to v6:
- remove typecast.
Changes from v4 to v5:
- no logical change; updated to work with new revision of patch #2.
Changes from v3 to v4:
- none.
Changes from v2 to v3:
- no logical change; updated to work with new revision of patch #2.
Changes from v1 to v2:
- Rename patch title;
was "arm: lpc32xx: restart: support "cmd" from userspace"
- Add change to "pnx-4008" driver instead of "mach-lpc32xx".
drivers/watchdog/pnx4008_wdt.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 51be66e..0529aed 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -129,6 +129,21 @@ static int pnx4008_wdt_set_timeout(struct watchdog_device *wdd,
static int pnx4008_restart_handler(struct watchdog_device *wdd,
unsigned long mode, void *cmd)
{
+ const char *boot_cmd = cmd;
+
+ /*
+ * Verify if a "cmd" passed from the userspace program rebooting
+ * the system; if available, handle it.
+ * - For details, see the 'reboot' syscall in kernel/reboot.c
+ * - If the received "cmd" is not supported, use the default mode.
+ */
+ if (boot_cmd) {
+ if (boot_cmd[0] == 'h')
+ mode = REBOOT_HARD;
+ else if (boot_cmd[0] == 's')
+ mode = REBOOT_SOFT;
+ }
+
if (mode == REBOOT_SOFT) {
/* Force match output active */
writel(EXT_MATCH0, WDTIM_EMR(wdt_base));
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v7 4/6] watchdog: pnx4008: restart: support "cmd" from userspace
2016-03-04 18:44 ` [PATCH v7 4/6] watchdog: pnx4008: restart: support "cmd" from userspace Sylvain Lemieux
@ 2016-03-04 23:14 ` Guenter Roeck
0 siblings, 0 replies; 10+ messages in thread
From: Guenter Roeck @ 2016-03-04 23:14 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Mar 04, 2016 at 01:44:08PM -0500, Sylvain Lemieux wrote:
> From: Sylvain Lemieux <slemieux@tycoint.com>
>
> Added support to verify if a "cmd" is passed from the userspace program rebooting the system;
> - if a valid "cmd" is available, handle it;
> - If the received "cmd" is not supported, use the default reboot mode.
>
> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> ---
> Changes from v6 to v7:
> - remove typecast.
>
> Changes from v5 to v6:
> - remove typecast.
>
> Changes from v4 to v5:
> - no logical change; updated to work with new revision of patch #2.
>
> Changes from v3 to v4:
> - none.
>
> Changes from v2 to v3:
> - no logical change; updated to work with new revision of patch #2.
>
> Changes from v1 to v2:
> - Rename patch title;
> was "arm: lpc32xx: restart: support "cmd" from userspace"
> - Add change to "pnx-4008" driver instead of "mach-lpc32xx".
>
> drivers/watchdog/pnx4008_wdt.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
> index 51be66e..0529aed 100644
> --- a/drivers/watchdog/pnx4008_wdt.c
> +++ b/drivers/watchdog/pnx4008_wdt.c
> @@ -129,6 +129,21 @@ static int pnx4008_wdt_set_timeout(struct watchdog_device *wdd,
> static int pnx4008_restart_handler(struct watchdog_device *wdd,
> unsigned long mode, void *cmd)
> {
> + const char *boot_cmd = cmd;
> +
> + /*
> + * Verify if a "cmd" passed from the userspace program rebooting
> + * the system; if available, handle it.
> + * - For details, see the 'reboot' syscall in kernel/reboot.c
> + * - If the received "cmd" is not supported, use the default mode.
> + */
> + if (boot_cmd) {
> + if (boot_cmd[0] == 'h')
> + mode = REBOOT_HARD;
> + else if (boot_cmd[0] == 's')
> + mode = REBOOT_SOFT;
> + }
> +
> if (mode == REBOOT_SOFT) {
> /* Force match output active */
> writel(EXT_MATCH0, WDTIM_EMR(wdt_base));
> --
> 1.8.3.1
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v7 5/6] arm: lpc32xx: phy3250 remove restart hook
2016-03-04 18:44 [PATCH v7 0/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
` (3 preceding siblings ...)
2016-03-04 18:44 ` [PATCH v7 4/6] watchdog: pnx4008: restart: support "cmd" from userspace Sylvain Lemieux
@ 2016-03-04 18:44 ` Sylvain Lemieux
2016-03-04 23:18 ` Guenter Roeck
2016-03-04 18:44 ` [PATCH v7 6/6] arm: lpc32xx: remove restart handler Sylvain Lemieux
5 siblings, 1 reply; 10+ messages in thread
From: Sylvain Lemieux @ 2016-03-04 18:44 UTC (permalink / raw)
To: linux-arm-kernel
From: Sylvain Lemieux <slemieux@tycoint.com>
Remove the restart hook assignment from phy3250;
this functionality is now managed by
the pnx4008 watchdog driver.
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
---
Note:
This patch was generated with the option "--unified=2" to ensure
it can be apply before or after the changes for the new
LPC32xx irqchip driver:
- http://permalink.gmane.org/gmane.linux.drivers.devicetree/144683
Changes from v6 to v7:
- none.
Changes from v5 to v6:
- none.
Changes from v4 to v5:
- none.
Changes from v3 to v4:
- Switch patch #5 and #6 order.
Changes from v2 to v3:
- new patch in v3.
arch/arm/mach-lpc32xx/phy3250.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index a19071a..9e5c3db 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -211,4 +211,3 @@ DT_MACHINE_START(LPC32XX_DT, "LPC32XX SoC (Flattened Device Tree)")
.init_machine = lpc3250_machine_init,
.dt_compat = lpc32xx_dt_compat,
- .restart = lpc23xx_restart,
MACHINE_END
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v7 5/6] arm: lpc32xx: phy3250 remove restart hook
2016-03-04 18:44 ` [PATCH v7 5/6] arm: lpc32xx: phy3250 remove restart hook Sylvain Lemieux
@ 2016-03-04 23:18 ` Guenter Roeck
0 siblings, 0 replies; 10+ messages in thread
From: Guenter Roeck @ 2016-03-04 23:18 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Mar 04, 2016 at 01:44:09PM -0500, Sylvain Lemieux wrote:
> From: Sylvain Lemieux <slemieux@tycoint.com>
>
> Remove the restart hook assignment from phy3250;
> this functionality is now managed by
> the pnx4008 watchdog driver.
>
> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
> ---
> Note:
> This patch was generated with the option "--unified=2" to ensure
> it can be apply before or after the changes for the new
> LPC32xx irqchip driver:
> - http://permalink.gmane.org/gmane.linux.drivers.devicetree/144683
>
> Changes from v6 to v7:
> - none.
>
> Changes from v5 to v6:
> - none.
>
> Changes from v4 to v5:
> - none.
>
> Changes from v3 to v4:
> - Switch patch #5 and #6 order.
>
> Changes from v2 to v3:
> - new patch in v3.
>
> arch/arm/mach-lpc32xx/phy3250.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
> index a19071a..9e5c3db 100644
> --- a/arch/arm/mach-lpc32xx/phy3250.c
> +++ b/arch/arm/mach-lpc32xx/phy3250.c
> @@ -211,4 +211,3 @@ DT_MACHINE_START(LPC32XX_DT, "LPC32XX SoC (Flattened Device Tree)")
> .init_machine = lpc3250_machine_init,
> .dt_compat = lpc32xx_dt_compat,
> - .restart = lpc23xx_restart,
> MACHINE_END
> --
> 1.8.3.1
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v7 6/6] arm: lpc32xx: remove restart handler
2016-03-04 18:44 [PATCH v7 0/6] watchdog: pnx4008: add restart handler Sylvain Lemieux
` (4 preceding siblings ...)
2016-03-04 18:44 ` [PATCH v7 5/6] arm: lpc32xx: phy3250 remove restart hook Sylvain Lemieux
@ 2016-03-04 18:44 ` Sylvain Lemieux
2016-03-04 23:18 ` Guenter Roeck
5 siblings, 1 reply; 10+ messages in thread
From: Sylvain Lemieux @ 2016-03-04 18:44 UTC (permalink / raw)
To: linux-arm-kernel
From: Sylvain Lemieux <slemieux@tycoint.com>
Remove the restart handler from "mach-lpc32xx";
this functionality is now available in the
pnx4008 watchdog driver.
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
---
Changes from v6 to v7:
- none.
Changes from v5 to v6:
- none.
Changes from v4 to v5:
- none.
Changes from v3 to v4:
- Switch patch #5 and #6 order.
Changes from v2 to v3:
- move the change to "phy3250.c" into a separate patch.
Changes from v1 to v2:
- new patch in v2.
arch/arm/mach-lpc32xx/common.c | 15 ---------------
arch/arm/mach-lpc32xx/common.h | 1 -
2 files changed, 16 deletions(-)
diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
index 716e83e..5b7a1e7 100644
--- a/arch/arm/mach-lpc32xx/common.c
+++ b/arch/arm/mach-lpc32xx/common.c
@@ -194,21 +194,6 @@ void __init lpc32xx_map_io(void)
iotable_init(lpc32xx_io_desc, ARRAY_SIZE(lpc32xx_io_desc));
}
-void lpc23xx_restart(enum reboot_mode mode, const char *cmd)
-{
- /* Make sure WDT clocks are enabled */
- __raw_writel(LPC32XX_CLKPWR_PWMCLK_WDOG_EN,
- LPC32XX_CLKPWR_TIMER_CLK_CTRL);
-
- /* Instant assert of RESETOUT_N with pulse length 1mS */
- __raw_writel(13000, io_p2v(LPC32XX_WDTIM_BASE + 0x18));
- __raw_writel(0x70, io_p2v(LPC32XX_WDTIM_BASE + 0xC));
-
- /* Wait for watchdog to reset system */
- while (1)
- ;
-}
-
static int __init lpc32xx_check_uid(void)
{
u32 uid[4];
diff --git a/arch/arm/mach-lpc32xx/common.h b/arch/arm/mach-lpc32xx/common.h
index 1cd8853..2d90801 100644
--- a/arch/arm/mach-lpc32xx/common.h
+++ b/arch/arm/mach-lpc32xx/common.h
@@ -30,7 +30,6 @@ extern void lpc32xx_timer_init(void);
extern void __init lpc32xx_init_irq(void);
extern void __init lpc32xx_map_io(void);
extern void __init lpc32xx_serial_init(void);
-extern void lpc23xx_restart(enum reboot_mode, const char *);
/*
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v7 6/6] arm: lpc32xx: remove restart handler
2016-03-04 18:44 ` [PATCH v7 6/6] arm: lpc32xx: remove restart handler Sylvain Lemieux
@ 2016-03-04 23:18 ` Guenter Roeck
0 siblings, 0 replies; 10+ messages in thread
From: Guenter Roeck @ 2016-03-04 23:18 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Mar 04, 2016 at 01:44:10PM -0500, Sylvain Lemieux wrote:
> From: Sylvain Lemieux <slemieux@tycoint.com>
>
> Remove the restart handler from "mach-lpc32xx";
> this functionality is now available in the
> pnx4008 watchdog driver.
>
> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
> ---
> Changes from v6 to v7:
> - none.
>
> Changes from v5 to v6:
> - none.
>
> Changes from v4 to v5:
> - none.
>
> Changes from v3 to v4:
> - Switch patch #5 and #6 order.
>
> Changes from v2 to v3:
> - move the change to "phy3250.c" into a separate patch.
>
> Changes from v1 to v2:
> - new patch in v2.
>
> arch/arm/mach-lpc32xx/common.c | 15 ---------------
> arch/arm/mach-lpc32xx/common.h | 1 -
> 2 files changed, 16 deletions(-)
>
> diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
> index 716e83e..5b7a1e7 100644
> --- a/arch/arm/mach-lpc32xx/common.c
> +++ b/arch/arm/mach-lpc32xx/common.c
> @@ -194,21 +194,6 @@ void __init lpc32xx_map_io(void)
> iotable_init(lpc32xx_io_desc, ARRAY_SIZE(lpc32xx_io_desc));
> }
>
> -void lpc23xx_restart(enum reboot_mode mode, const char *cmd)
> -{
> - /* Make sure WDT clocks are enabled */
> - __raw_writel(LPC32XX_CLKPWR_PWMCLK_WDOG_EN,
> - LPC32XX_CLKPWR_TIMER_CLK_CTRL);
> -
> - /* Instant assert of RESETOUT_N with pulse length 1mS */
> - __raw_writel(13000, io_p2v(LPC32XX_WDTIM_BASE + 0x18));
> - __raw_writel(0x70, io_p2v(LPC32XX_WDTIM_BASE + 0xC));
> -
> - /* Wait for watchdog to reset system */
> - while (1)
> - ;
> -}
> -
> static int __init lpc32xx_check_uid(void)
> {
> u32 uid[4];
> diff --git a/arch/arm/mach-lpc32xx/common.h b/arch/arm/mach-lpc32xx/common.h
> index 1cd8853..2d90801 100644
> --- a/arch/arm/mach-lpc32xx/common.h
> +++ b/arch/arm/mach-lpc32xx/common.h
> @@ -30,7 +30,6 @@ extern void lpc32xx_timer_init(void);
> extern void __init lpc32xx_init_irq(void);
> extern void __init lpc32xx_map_io(void);
> extern void __init lpc32xx_serial_init(void);
> -extern void lpc23xx_restart(enum reboot_mode, const char *);
>
>
> /*
> --
> 1.8.3.1
>
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