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ppc4xx: Enable booting with Option E on 460EX/EXr/GT

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This patch enables booting with option E on the PPC460EX/EXr/GT.
When booting with Option E, the PLL is in bypass, CPR0_PLLC[ENG]=0.
The Software Boot Configuration Procedure is needed to engage the
PLL and perform a chip reset.

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese
2010-05-19 11:13:24 +02:00
parent 39ddd10b04
commit fe7cca715c
2 changed files with 48 additions and 12 deletions
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7
include/ppc440.h
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@@ -1719,6 +1719,13 @@
#define CPR0_PERD_PERDV0_MASK 0x07000000
#endif
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
#define CPR0_ICFG_RLI_MASK 0x80000000
#define CPR0_PLLC_RST 0x80000000
#define CPR0_PLLC_ENG 0x40000000
#endif
/*-----------------------------------------------------------------------------
| PCI Internal Registers et. al. (accessed via plb)
+----------------------------------------------------------------------------*/