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author | Tom Rini <trini@ti.com> | 2014-12-08 16:35:07 -0500 |
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committer | Tom Rini <trini@ti.com> | 2014-12-08 16:35:07 -0500 |
commit | 272a1acf1ef574356e5da51f7d6b3b07ab4e9b83 (patch) | |
tree | b65e7b532ac7beb91cfbf3b16f1df76a3a65d59d /drivers/ddr/fsl/ddr4_dimm_params.c | |
parent | 98d2d5e8c473232dc718763dbec284b7349dcc05 (diff) | |
parent | af7219de2c66b64ddae0348b3d3fa5072d800dd2 (diff) |
Merge git://git.denx.de/u-boot-mpc85xx
Diffstat (limited to 'drivers/ddr/fsl/ddr4_dimm_params.c')
-rw-r--r-- | drivers/ddr/fsl/ddr4_dimm_params.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/ddr/fsl/ddr4_dimm_params.c b/drivers/ddr/fsl/ddr4_dimm_params.c index 2418dca6ab..aaddc8fa08 100644 --- a/drivers/ddr/fsl/ddr4_dimm_params.c +++ b/drivers/ddr/fsl/ddr4_dimm_params.c @@ -126,6 +126,12 @@ ddr_compute_dimm_parameters(const generic_spd_eeprom_t *spd, { unsigned int retval; int i; + const u8 udimm_rc_e_dq[18] = { + 0x0c, 0x2c, 0x15, 0x35, 0x15, 0x35, 0x0b, 0x2c, 0x15, + 0x35, 0x0b, 0x35, 0x0b, 0x2c, 0x0b, 0x35, 0x15, 0x36 + }; + int spd_error = 0; + u8 *ptr; if (spd->mem_type) { if (spd->mem_type != SPD_MEMTYPE_DDR4) { @@ -179,6 +185,22 @@ ddr_compute_dimm_parameters(const generic_spd_eeprom_t *spd, /* Unbuffered DIMMs */ if (spd->mod_section.unbuffered.addr_mapping & 0x1) pdimm->mirrored_dimm = 1; + if ((spd->mod_section.unbuffered.mod_height & 0xe0) == 0 && + (spd->mod_section.unbuffered.ref_raw_card == 0x04)) { + /* Fix SPD error found on DIMMs with raw card E0 */ + for (i = 0; i < 18; i++) { + if (spd->mapping[i] == udimm_rc_e_dq[i]) + continue; + spd_error = 1; + debug("SPD byte %d: 0x%x, should be 0x%x\n", + 60 + i, spd->mapping[i], + udimm_rc_e_dq[i]); + ptr = (u8 *)&spd->mapping[i]; + *ptr = udimm_rc_e_dq[i]; + } + if (spd_error) + puts("SPD DQ mapping error fixed\n"); + } break; default: |