[U-Boot] [PATCH 2/6] p1010rdb: fix ddr values for p1014rdb (setting bus width to 16bit)
Matthew McClintock
msm at freescale.com
Mon Aug 13 20:10:38 CEST 2012
There was an extra 0 in front of the value we were using to mask,
remove it to improve the code.
Also fix the value written to ddr_sdram_cfg to set the bus width
properly to 16 bits
Signed-off-by: Matthew McClintock <msm at freescale.com>
---
board/freescale/p1010rdb/ddr.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/board/freescale/p1010rdb/ddr.c b/board/freescale/p1010rdb/ddr.c
index 10c5a42..6d00caf 100644
--- a/board/freescale/p1010rdb/ddr.c
+++ b/board/freescale/p1010rdb/ddr.c
@@ -147,10 +147,11 @@ phys_size_t fixed_sdram(void)
cpu = gd->cpu;
/* P1014 and it's derivatives support max 16bit DDR width */
if (cpu->soc_ver == SVR_P1014) {
+ ddr_cfg_regs.ddr_sdram_cfg &= ~SDRAM_CFG_DBW_MASK;
ddr_cfg_regs.ddr_sdram_cfg |= SDRAM_CFG_16_BE;
- ddr_cfg_regs.cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS >> 1;
- ddr_cfg_regs.ddr_sdram_cfg &= ~0x00180000;
- ddr_cfg_regs.ddr_sdram_cfg |= 0x001080000;
+ /* divide SA and EA by two and then mask the rest so we don't
+ * write to reserved fields */
+ ddr_cfg_regs.cs[0].bnds = (CONFIG_SYS_DDR_CS0_BNDS >> 1) & 0x0fff0fff;
}
ddr_size = (phys_size_t) CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
--
1.7.9.7
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