ARM: uniphier: reserve the last 64 byte of SDRAM
The last 64 byte of each DDR channel of PH1-LD20 is periodically
used as a scratch area for the DDR PHY training.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h
index fb405a9..a25ac8d 100644
--- a/include/configs/uniphier.h
+++ b/include/configs/uniphier.h
@@ -259,6 +259,8 @@
#define CONFIG_SYS_SDRAM_BASE 0x80000000
#define CONFIG_NR_DRAM_BANKS 2
+/* for LD20; the last 64 byte is used for dynamic DDR PHY training */
+#define CONFIG_SYS_MEM_TOP_HIDE 64
#if defined(CONFIG_ARM64)
#define CONFIG_SPL_TEXT_BASE 0x30000000