diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-12-16 10:50:26 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-12-23 00:08:27 +0900 |
| commit | 6a9f6ba0f9aec784d748d9c30dcee5cd4c2eadd5 (patch) | |
| tree | 4f1476b5311f2aaaeef80d607d3b6089abd7e3b4 | |
| parent | 11d6effeae2c0fc40af61fb17ae387c91ebda82a (diff) | |
ARM: uniphier: allow DDR function to return more precise error code
Return different error code depending on the reason so that the
caller can know the cause of the failure.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| -rw-r--r-- | arch/arm/mach-uniphier/ddrphy/ddrphy-training.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/mach-uniphier/ddrphy/ddrphy-training.c b/arch/arm/mach-uniphier/ddrphy/ddrphy-training.c index b4d369a824a..4852f2dec81 100644 --- a/arch/arm/mach-uniphier/ddrphy/ddrphy-training.c +++ b/arch/arm/mach-uniphier/ddrphy/ddrphy-training.c @@ -5,6 +5,7 @@ */ #include <common.h> +#include <linux/err.h> #include <linux/io.h> #include <mach/ddrphy-regs.h> @@ -117,7 +118,7 @@ int ddrphy_training(struct ddrphy __iomem *phy) if (--timeout < 0) { printf("%s: error: timeout during DDR training\n", __func__); - return -1; + return -ETIMEDOUT; } udelay(1); pgsr0 = readl(&phy->pgsr[0]); @@ -127,7 +128,7 @@ int ddrphy_training(struct ddrphy __iomem *phy) if (pgsr0 & init_sequence[i].err_flag) { printf("%s: error: %s failed\n", __func__, init_sequence[i].description); - return -1; + return -EIO; } } |