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[POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c

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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>
This commit is contained in:
Stefan Roese
2008-03-28 01:43:31 +11:00
committed by Josh Boyer
parent d2477b5cc8
commit 93173ce272
19 changed files with 64 additions and 43 deletions
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11
arch/powerpc/sysdev/ppc4xx_soc.c
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@@ -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 */
}