From: york yorksun@freescale.com
Only use DDR DIMM part number if SPD has valid length, to prevent from display garbage in case SPD doesn't cover these fields.
Signed-off-by: York Sun yorksun@freescale.com --- arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c index 756b15f..838cebe 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c @@ -114,7 +114,8 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd, * and copying the part name in ASCII from the SPD onto it */ memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); - memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1); + if ((spd->info_size_crc & 0xF) > 1) + memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1);
/* DIMM organization parameters */ pdimm->n_ranks = ((spd->organization >> 3) & 0x7) + 1;