diff options
| author | Stefan Roese <sr@denx.de> | 2008-03-28 01:43:31 +1100 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2008-04-02 20:44:56 -0500 |
| commit | 93173ce272e54f81460986ff5040d16ab79488a9 (patch) | |
| tree | 7bb4e15ac4cf3853f81e358fb1b21aa2fef6b4ce /arch/powerpc/sysdev | |
| parent | d2477b5cc8ca95b8c15133ffbbebf0bd9783f560 (diff) | |
[POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c
This patch creates a common system reset routine for all 40x and 44x
systems. Previously only a 44x routine existed. But since this system
reset via the debug control register is common for 40x and 44x let's
share this code for all those platforms in ppc4xx_soc.c.
This patch also enables CONFIG_4xx_SOC for all 40x and 44x platforms.
Tested on Kilauea (405EX) and Canyonlands (440EX).
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/ppc4xx_soc.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_soc.c b/arch/powerpc/sysdev/ppc4xx_soc.c index 4b8617e4431..5b32adc9a9b 100644 --- a/arch/powerpc/sysdev/ppc4xx_soc.c +++ b/arch/powerpc/sysdev/ppc4xx_soc.c @@ -23,6 +23,7 @@ #include <asm/dcr.h> #include <asm/dcr-regs.h> +#include <asm/reg.h> static u32 dcrbase_l2c; @@ -187,3 +188,13 @@ static int __init ppc4xx_l2c_probe(void) return 0; } arch_initcall(ppc4xx_l2c_probe); + +/* + * At present, this routine just applies a system reset. + */ +void ppc4xx_reset_system(char *cmd) +{ + mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | DBCR0_RST_SYSTEM); + while (1) + ; /* Just in case the reset doesn't work */ +} |