powerpc/8xxx: Enable DDR3 RDIMM support

[karo-tx-uboot.git] / arch / powerpc / cpu / mpc8xxx / ddr / ddr3_dimm_params.c

diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c
index d4199baa82c55c712141255faa3ff3ab646b407d..29cea53266b87e5a25439b26e65c08aeb9d27812 100644 (file)
--- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c
@@ -90,6 +90,7 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd,
 {
        unsigned int retval;
        unsigned int mtb_ps;
+       int i;
 
        if (spd->mem_type) {
                if (spd->mem_type != SPD_MEMTYPE_DDR3) {
@@ -131,8 +132,11 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd,
        case 0x01:      /* RDIMM */
        case 0x05:      /* Mini-RDIMM */
                pdimm->registered_dimm = 1; /* register buffered */
+               for (i = 0; i < 16; i += 2) {
+                       pdimm->rcw[i] = spd->mod_section.registered.rcw[i/2] & 0x0F;
+                       pdimm->rcw[i+1] = (spd->mod_section.registered.rcw[i/2] >> 4) & 0x0F;
+               }
                break;
-
        case 0x02:      /* UDIMM */
        case 0x03:      /* SO-DIMM */
        case 0x04:      /* Micro-DIMM */