diff options
| -rwxr-xr-x[-rw-r--r--] | cpu/ppc4xx/traps.c | 87 |
1 files changed, 86 insertions, 1 deletions
diff --git a/cpu/ppc4xx/traps.c b/cpu/ppc4xx/traps.c index 7c44a29..eb9420e 100644..100755 --- a/cpu/ppc4xx/traps.c +++ b/cpu/ppc4xx/traps.c @@ -145,6 +145,9 @@ void MachineCheckException(struct pt_regs *regs) { unsigned long fixup, val; +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + u32 value2; +#endif /* Probing PCI using config cycles cause this exception * when a device is not present. Catch it and return to @@ -203,7 +206,89 @@ MachineCheckException(struct pt_regs *regs) /* Clear MCSR */ mtspr(SPRN_MCSR, val); } -#endif +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + mfsdram(DDR0_00, val) ; + printf("DDR0: DDR0_00 %p\n", val); + val = (val >> 16) & 0xff; + if (val & 0x80) + printf("DDR0: At least one interrupt active\n"); + if (val & 0x40) + printf("DDR0: DRAM initialization complete.\n"); + if (val & 0x20) + printf("DDR0: Multiple uncorrectable ECC events.\n"); + if (val & 0x10) + printf("DDR0: Single uncorrectable ECC event.\n"); + if (val & 0x08) + printf("DDR0: Multiple correctable ECC events.\n"); + if (val & 0x04) + printf("DDR0: Single correctable ECC event.\n"); + if (val & 0x02) + printf("Multiple accesses outside the defined" + " physical memory space detected\n"); + if (val & 0x01) + printf("DDR0: Single access outside the defined" + " physical memory space detected.\n"); + + mfsdram(DDR0_01, val); + val = (val >> 8) & 0x7; + switch (val ) { + case 0: + printf("DDR0: Write Out-of-Range command\n"); + break; + case 1: + printf("DDR0: Read Out-of-Range command\n"); + break; + case 2: + printf("DDR0: Masked write Out-of-Range command\n"); + break; + case 4: + printf("DDR0: Wrap write Out-of-Range command\n"); + break; + case 5: + printf("DDR0: Wrap read Out-of-Range command\n"); + break; + default: + mfsdram(DDR0_01, value2); + printf("DDR0: No DDR0 error know 0x%x %p\n", val, value2); + } + mfsdram(DDR0_23, val); + if ( (val >> 16) & 0xff) + printf("DDR0: Syndrome for correctable ECC event 0x%x\n", + (val >> 16) & 0xff); + mfsdram(DDR0_23, val); + if ( (val >> 8) & 0xff) + printf("DDR0: Syndrome for uncorrectable ECC event 0x%x\n", + (val >> 8) & 0xff); + mfsdram(DDR0_33, val); + if (val) + printf("DDR0: Address of command that caused an " + "Out-of-Range interrupt %p\n", val); + mfsdram(DDR0_34, val); + if (val) + printf("DDR0: Address of uncorrectable ECC event %p\n", val); + mfsdram(DDR0_35, val); + if (val) + printf("DDR0: Address of uncorrectable ECC event %p\n", val); + mfsdram(DDR0_36, val); + if (val) + printf("DDR0: Data of uncorrectable ECC event 0x%08x\n", val); + mfsdram(DDR0_37, val); + if (val) + printf("DDR0: Data of uncorrectable ECC event 0x%08x\n", val); + mfsdram(DDR0_38, val); + if (val) + printf("DDR0: Address of correctable ECC event %p\n", val); + mfsdram(DDR0_39, val); + if (val) + printf("DDR0: Address of correctable ECC event %p\n", val); + mfsdram(DDR0_40, val); + if (val) + printf("DDR0: Data of correctable ECC event 0x%08x\n", val); + mfsdram(DDR0_41, val); + if (val) + printf("DDR0: Data of correctable ECC event 0x%08x\n", val); +#endif /* CONFIG_440EPX */ +#endif /* CONFIG_440 */ show_regs(regs); print_backtrace((unsigned long *)regs->gpr[1]); panic("machine check"); |