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| author | Dinh Nguyen <dinguyen@altera.com> | 2013-04-11 10:55:24 -0500 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-04-14 20:17:33 -0700 |
| commit | 5c04b57fe33c7700e433983bb69e50ec8d8f08cd (patch) | |
| tree | a4c95094ab7c7918d4e64de7fcc1cd74386015f0 /arch/arm/mach-socfpga | |
| parent | a93216c9212cb9ec36bb71776b706e7ed2d9d67c (diff) | |
| download | linux-5c04b57fe33c7700e433983bb69e50ec8d8f08cd.tar.gz linux-5c04b57fe33c7700e433983bb69e50ec8d8f08cd.tar.bz2 linux-5c04b57fe33c7700e433983bb69e50ec8d8f08cd.zip | |
ARM: socfpga: Enable soft reset
Enable a cold or warm reset to the HW from userspace.
Also fix a few sparse errors:
warning: symbol 'sys_manager_base_addr' was not declared. Should it be static?
warning: symbol 'rst_manager_base_addr' was not declared. Should it be static?
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-socfpga')
| -rw-r--r-- | arch/arm/mach-socfpga/core.h | 11 | ||||
| -rw-r--r-- | arch/arm/mach-socfpga/platsmp.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-socfpga/socfpga.c | 10 |
3 files changed, 20 insertions, 4 deletions
diff --git a/arch/arm/mach-socfpga/core.h b/arch/arm/mach-socfpga/core.h index 315edff610f2..572b8f719ffb 100644 --- a/arch/arm/mach-socfpga/core.h +++ b/arch/arm/mach-socfpga/core.h @@ -20,12 +20,23 @@ #ifndef __MACH_CORE_H #define __MACH_CORE_H +#define SOCFPGA_RSTMGR_CTRL 0x04 +#define SOCFPGA_RSTMGR_MODPERRST 0x14 +#define SOCFPGA_RSTMGR_BRGMODRST 0x1c + +/* System Manager bits */ +#define RSTMGR_CTRL_SWCOLDRSTREQ 0x1 /* Cold Reset */ +#define RSTMGR_CTRL_SWWARMRSTREQ 0x2 /* Warm Reset */ + extern void socfpga_secondary_startup(void); extern void __iomem *socfpga_scu_base_addr; extern void socfpga_init_clocks(void); extern void socfpga_sysmgr_init(void); +extern void __iomem *sys_manager_base_addr; +extern void __iomem *rst_manager_base_addr; + extern struct smp_operations socfpga_smp_ops; extern char secondary_trampoline, secondary_trampoline_end; diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsmp.c index 84c60fa8daa0..b907fb986d9e 100644 --- a/arch/arm/mach-socfpga/platsmp.c +++ b/arch/arm/mach-socfpga/platsmp.c @@ -30,9 +30,6 @@ #include "core.h" -extern void __iomem *sys_manager_base_addr; -extern void __iomem *rst_manager_base_addr; - static void __cpuinit socfpga_secondary_init(unsigned int cpu) { /* diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c index 1042c023cf24..2cae16c1f265 100644 --- a/arch/arm/mach-socfpga/socfpga.c +++ b/arch/arm/mach-socfpga/socfpga.c @@ -87,7 +87,15 @@ static void __init socfpga_init_irq(void) static void socfpga_cyclone5_restart(char mode, const char *cmd) { - /* TODO: */ + u32 temp; + + temp = readl(rst_manager_base_addr + SOCFPGA_RSTMGR_CTRL); + + if (mode == 'h') + temp |= RSTMGR_CTRL_SWCOLDRSTREQ; + else + temp |= RSTMGR_CTRL_SWWARMRSTREQ; + writel(temp, rst_manager_base_addr + SOCFPGA_RSTMGR_CTRL); } static void __init socfpga_cyclone5_init(void) |