diff options
| author | York Sun <yorksun@freescale.com> | 2014-06-23 15:36:44 -0700 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-07-22 16:25:54 -0700 |
| commit | 8340e7ac86ad3c59956e8f0bd627b741e5209439 (patch) | |
| tree | 0460d0395f63b1cee89ae8dfe5479ace02bb5c50 /drivers/ddr | |
| parent | 6666017f44e39ec0385e3c7736b8c9af46cf4f08 (diff) | |
driver/ddr: Fix DDR4 driver for ARM
Previously the driver was only tested on Power SoCs. Different barrier
instructions are needed for ARM SoCs.
Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers/ddr')
| -rw-r--r-- | drivers/ddr/fsl/fsl_ddr_gen4.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index 7cd878aeecb..bfc76b34857 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -8,6 +8,7 @@ #include <asm/io.h> #include <fsl_ddr_sdram.h> #include <asm/processor.h> +#include <fsl_immap.h> #include <fsl_ddr.h> #if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) @@ -183,12 +184,14 @@ step2: * we choose the max, that is 500 us for all of case. */ udelay(500); - asm volatile("sync;isync"); + mb(); + isb(); /* Let the controller go */ temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI; ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN); - asm volatile("sync;isync"); + mb(); + isb(); total_gb_size_per_controller = 0; for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { |