From 9855b3beca648dabe4d86b06d36bf219ebd0732d Mon Sep 17 00:00:00 2001 From: York Sun Date: Fri, 23 May 2014 13:15:00 -0700 Subject: powerpc/mpc85xx: Add workaround for DDR erratum A004508 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When the DDR controller is initialized below a junction temperature of 0°C and then operated above a junction temperature of 65°C, the DDR controller may cause receive data errors, resulting ECC errors and/or corrupted data. This erratum applies to the following SoCs and their variants: MPC8536, MPC8569, MPC8572, P1010, P1020, P1021, P1022, P1023, P2020. Signed-off-by: York Sun --- drivers/ddr/fsl/ctrl_regs.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/ddr/fsl') diff --git a/drivers/ddr/fsl/ctrl_regs.c b/drivers/ddr/fsl/ctrl_regs.c index 78e82bba3d..dcf6287f66 100644 --- a/drivers/ddr/fsl/ctrl_regs.c +++ b/drivers/ddr/fsl/ctrl_regs.c @@ -2304,5 +2304,10 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, ddr->debug[2] = 0x00000400; ddr->debug[4] = 0xff800000; #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A004508 + if ((ip_rev >= 0x40000) && (ip_rev < 0x40400)) + ddr->debug[2] |= 0x00000200; /* set bit 22 */ +#endif + return check_fsl_memctl_config_regs(ddr); } -- cgit From 353527d527b78297571c05b8a1687c92d42f6d20 Mon Sep 17 00:00:00 2001 From: York Sun Date: Thu, 5 Jun 2014 12:32:15 -0700 Subject: driver/ddr/fsl: Fix printing unspecified module info for DDR4 The offset of module information is at 128, different from DDR3. Signed-off-by: York Sun --- drivers/ddr/fsl/interactive.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/ddr/fsl') diff --git a/drivers/ddr/fsl/interactive.c b/drivers/ddr/fsl/interactive.c index c9f86302d7..7fb418744e 100644 --- a/drivers/ddr/fsl/interactive.c +++ b/drivers/ddr/fsl/interactive.c @@ -1579,7 +1579,7 @@ void ddr4_spd_dump(const struct ddr4_spd_eeprom_s *spd) printf("%-3d-%3d: ", 128, 255); for (i = 128; i <= 255; i++) - printf("%02x", spd->mod_section.uc[i - 60]); + printf("%02x", spd->mod_section.uc[i - 128]); break; } -- cgit