The xloader had a basic pattern read/write test with in itself. With the source
upgrading to SPL, it is now more convenient to use the Power On Self Test for
memory supported by u-boot.
This patch adds the support for memory POST test.
Signed-off-by: Vipin Kumar <vipin.ku...@st.com>
---
arch/arm/cpu/arm926ejs/spear/cpu.c | 30 ++++++++++++++++++++++++++++++
include/configs/spear.h | 2 ++
2 files changed, 32 insertions(+)
diff --git a/arch/arm/cpu/arm926ejs/spear/cpu.c
b/arch/arm/cpu/arm926ejs/spear/cpu.c
index f03b2bb..d7608b2 100644
--- a/arch/arm/cpu/arm926ejs/spear/cpu.c
+++ b/arch/arm/cpu/arm926ejs/spear/cpu.c
@@ -120,3 +120,33 @@ int print_cpuinfo(void)
return 0;
}
#endif
+
+#ifdef CONFIG_POST
+int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
+{
+ /*
+ * Run the POST test on 64 MB memory starting from CONFIG_SYS_LOAD_ADDR
+ * The assumption here is that the DDR present on board is >= 128MB.
+ *
+ * The test runs before relocation (after the code copy has taken
+ * place), so it can not touch either before or after relocation areas
+ * of U-boot
+ *
+ * DDR usage
+ * <--------->|<---------------- / --------------->|<---------->
+ * U-boot Area to be used for U-boot
+ * before POST test after
+ * relocation relocation
+ */
+
+ *vstart = CONFIG_SYS_LOAD_ADDR;
+ *size = 64 << 20;
+
+ return 0;
+}
+
+void arch_memory_failure_handle(void)
+{
+ hang();
+}
+#endif
diff --git a/include/configs/spear.h b/include/configs/spear.h
index 3a73811..a8ddf54 100644
--- a/include/configs/spear.h
+++ b/include/configs/spear.h
@@ -154,6 +154,8 @@
/* Miscellaneous configurable options */
#define CONFIG_ARCH_CPU_INIT
#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_POST CONFIG_SYS_POST_MEMORY
+#define CONFIG_SYS_POST_WORD_ADDR 0x0
#define CONFIG_OF_LIBFDT
#define CONFIG_CMDLINE_TAG
--
1.7.11.4
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