From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Thu, 21 Apr 2016 05:43:19 +0000 (+0900)
Subject: ARM: uniphier: reserve the last 64 byte of SDRAM
X-Git-Tag: v2016.05-rc3~26^2~3
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=2386969808c1694bb633804aff010294cb7e8573;p=u-boot

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 fb405a9fe4..a25ac8d924 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