Use the correct macro instead of the hardcoded 0x4c to clear the ECC
status in the 440/460 DDR(2) error status register after ECC
initialization.
Also the non-440 parts (405EX(r) right now) and the IBM DDR PPC variants
(440GX) use a different registers to clear this error status. Use the
correct ones.
Signed-off-by: Stefan Roese <s...@denx.de>
---
arch/powerpc/cpu/ppc4xx/ecc.c | 21 ++++++++++++++++++++-
arch/powerpc/include/asm/ppc4xx-sdram.h | 2 ++
2 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/cpu/ppc4xx/ecc.c b/arch/powerpc/cpu/ppc4xx/ecc.c
index f105605..49f28d9 100644
--- a/arch/powerpc/cpu/ppc4xx/ecc.c
+++ b/arch/powerpc/cpu/ppc4xx/ecc.c
@@ -130,7 +130,26 @@ static void program_ecc_addr(unsigned long start_address,
/* clear ECC error repoting registers */
mtsdram(SDRAM_ECCES, 0xffffffff);
- mtdcr(0x4c, 0xffffffff);
+#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR)
+ /*
+ * IBM DDR(1) core (440GX):
+ * Clear Mx bits in SDRAM0_BESR0/1
+ */
+ mtsdram(SDRAM0_BESR0, 0xffffffff);
+ mtsdram(SDRAM0_BESR1, 0xffffffff);
+#elif defined(CONFIG_440)
+ /*
+ * 440/460 DDR2 core:
+ * Clear EMID (Error PLB Master ID) in MQ0_ESL
+ */
+ mtdcr(SDRAM_ERRSTATLL, 0xfff00000);
+#else
+ /*
+ * 405EX(r) DDR2 core:
+ * Clear M0ID (Error PLB Master ID) in SDRAM_BESR
+ */
+ mtsdram(SDRAM_BESR, 0xf0000000);
+#endif
mtsdram(SDRAM_MCOPT1,
(mcopt1 & ~SDRAM_MCOPT1_MCHK_MASK) |
SDRAM_MCOPT1_MCHK_CHK_REP);
diff --git a/arch/powerpc/include/asm/ppc4xx-sdram.h
b/arch/powerpc/include/asm/ppc4xx-sdram.h
index 42eac45..4ec1ef8 100644
--- a/arch/powerpc/include/asm/ppc4xx-sdram.h
+++ b/arch/powerpc/include/asm/ppc4xx-sdram.h
@@ -63,6 +63,8 @@
#define SDRAM_CFG0 0x20 /* memory controller options 0 */
#define SDRAM_CFG1 0x21 /* memory controller options 1 */
+#define SDRAM0_BESR0 0x0000 /* bus error status reg 0 */
+#define SDRAM0_BESR1 0x0008 /* bus error status reg 1 */
#define SDRAM0_BEAR 0x0010 /* bus error address reg */
#define SDRAM0_SLIO 0x0018 /* ddr sdram slave interface options */
#define SDRAM0_CFG0 0x0020 /* ddr sdram options 0 */
--
1.7.1.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
