From f80d6472b47e73e35e4eaed6fc56ce5df2c82cdb Mon Sep 17 00:00:00 2001 From: York Sun Date: Thu, 11 Sep 2014 13:32:06 -0700 Subject: driver/ddr/fsl: Fix DDR4 driver When accumulated ECC is enabled, the DQ_MAP for ECC[4:7] needs to be set to 0, i.e. 0->0, 1->1, etc., required by controller logic, even these pins are not actually connected. Also fix a bug when reading from DDR register to use proper accessor for correct endianess. Signed-off-by: York Sun --- drivers/ddr/fsl/fsl_ddr_gen4.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/ddr/fsl/fsl_ddr_gen4.c') diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index bfc76b3485..e024db9ee2 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -216,7 +216,7 @@ step2: * For example, 2GB on 666MT/s 64-bit bus takes about 402ms * Let's wait for 800ms */ - bus_width = 3 - ((ddr->sdram_cfg & SDRAM_CFG_DBW_MASK) + bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK) >> SDRAM_CFG_DBW_SHIFT); timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 / (get_ddr_freq(0) >> 20)) << 2; @@ -233,5 +233,4 @@ step2: if (timeout <= 0) printf("Waiting for D_INIT timeout. Memory may not work.\n"); - } -- cgit