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| 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 /arch/arm/include/asm/io.h | |
| parent | 6666017f44e39ec0385e3c7736b8c9af46cf4f08 (diff) | |
| download | talos-obmc-uboot-8340e7ac86ad3c59956e8f0bd627b741e5209439.tar.gz talos-obmc-uboot-8340e7ac86ad3c59956e8f0bd627b741e5209439.zip | |
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 'arch/arm/include/asm/io.h')
| -rw-r--r-- | arch/arm/include/asm/io.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 214f3ea51f..6d18eb330a 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -136,6 +136,7 @@ extern inline void __raw_readsl(unsigned long addr, void *data, int longlen) * TODO: The kernel offers some more advanced versions of barriers, it might * have some advantages to use them instead of the simple one here. */ +#define mb() asm volatile("dsb sy" : : : "memory") #define dmb() __asm__ __volatile__ ("" : : : "memory") #define __iormb() dmb() #define __iowmb() dmb() |
