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| author | Shawn Guo <shawn.guo@linaro.org> | 2013-10-06 10:47:46 +0200 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-10-21 03:36:53 +0200 |
| commit | 87a84b69824d7fd63b20f3bc98d75c0238b8e7d0 (patch) | |
| tree | 4515eeea8fd346fa29545dd3d894461455e6f694 /arch/arm/mach-imx/common.h | |
| parent | ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt (diff) | |
| download | linux-87a84b69824d7fd63b20f3bc98d75c0238b8e7d0.tar.xz linux-87a84b69824d7fd63b20f3bc98d75c0238b8e7d0.zip | |
ARM: imx: replace imx6q_restart() with mxc_restart()
The imx6q_restart() works fine with normal reboot but will run into
problem with emergency reboot like sysrq-b. In that case, of_iomap()
gets called from interrupt context and hence triggers the BUG_ON in
__get_vm_area_node().
Actually, since commit c1e31d1 (ARM: imx: create
mxc_arch_reset_init_dt() for DT boot), imx6q/dl should try to use
mxc_restart() by calling mxc_arch_reset_init_dt() beforehand, where
things like of_iomap() can be done.
The patch updates mxc_restart() a little bit to get it work for imx6q/dl
and kill imx6q_restart() completely.
Reported-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx/common.h')
| -rw-r--r-- | arch/arm/mach-imx/common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index d04ed7e8d8d3..2413bfbc42f9 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -126,7 +126,11 @@ static inline void imx_smp_prepare(void) {} static inline void imx_scu_standby_enable(void) {} #endif extern void imx_src_init(void); +#ifdef CONFIG_HAVE_IMX_SRC extern void imx_src_prepare_restart(void); +#else +static inline void imx_src_prepare_restart(void) {} +#endif extern void imx_gpc_init(void); extern void imx_gpc_pre_suspend(void); extern void imx_gpc_post_resume(void); |