ARM: uniphier: hide memory top by platform hook instead of CONFIG
I do not see a good reason to do this by a CONFIG option that affects
all SoCs. The ram_size can be adjusted by dram_init() at run-time.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/dram_init.c b/arch/arm/mach-uniphier/dram_init.c
index cb35dab..f678114 100644
--- a/arch/arm/mach-uniphier/dram_init.c
+++ b/arch/arm/mach-uniphier/dram_init.c
@@ -238,6 +238,13 @@
gd->ram_size += dram_map[i].size;
}
+ /*
+ * LD20 uses the last 64 byte for each channel for dynamic
+ * DDR PHY training
+ */
+ if (uniphier_get_soc_id() == UNIPHIER_LD20_ID)
+ gd->ram_size -= 64;
+
return 0;
}
diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h
index 12cbe9b..5ab06f6 100644
--- a/include/configs/uniphier.h
+++ b/include/configs/uniphier.h
@@ -215,8 +215,6 @@
#define CONFIG_SYS_SDRAM_BASE 0x80000000
#define CONFIG_NR_DRAM_BANKS 3
-/* for LD20; the last 64 byte is used for dynamic DDR PHY training */
-#define CONFIG_SYS_MEM_TOP_HIDE 64
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_TEXT_BASE)