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ppc4xx: Add ECC status info to machine-check exception for IBM DDR2 core 

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese 2010-07-21 19:06:26 +02:00
parent 58eb869ffc
commit be24ef6e8e
1 changed files with 16 additions and 0 deletions
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16
arch/powerpc/cpu/ppc4xx/traps.c
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@ -209,6 +209,22 @@ MachineCheckException(struct pt_regs *regs)
/* Clear MCSR */
mtspr(SPRN_MCSR, val);
}
#if defined(CONFIG_DDR_ECC) && defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2)
/*
* Read and print ECC status register/info:
* The faulting address is only known upon uncorrectable ECC
* errors.
*/
mfsdram(SDRAM_ECCES, val);
if (val & SDRAM_ECCES_CE)
printf("ECC: Correctable error\n");
if (val & SDRAM_ECCES_UE) {
printf("ECC: Uncorrectable error at 0x%02x%08x\n",
mfdcr(SDRAM_ERRADDULL), mfdcr(SDRAM_ERRADDLLL));
}
#endif /* CONFIG_DDR_ECC ... */
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
mfsdram(DDR0_00, val) ;
printf("DDR0: DDR0_00 %lx\n", val);