ARM: uniphier: make dram_init() more generic
Make this function work with any channel being empty.
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 4a75d22..ab4aa93 100644
--- a/arch/arm/mach-uniphier/dram_init.c
+++ b/arch/arm/mach-uniphier/dram_init.c
@@ -212,6 +212,8 @@
int dram_init(void)
{
struct uniphier_dram_map dram_map[3] = {};
+ bool valid_bank_found = false;
+ unsigned long prev_top;
int ret, i;
gd->ram_size = 0;
@@ -224,15 +226,14 @@
unsigned long max_size;
if (!dram_map[i].size)
- break;
+ continue;
/*
* U-Boot relocates itself to the tail of the memory region,
* but it does not expect sparse memory. We use the first
* contiguous chunk here.
*/
- if (i > 0 && dram_map[i - 1].base + dram_map[i - 1].size <
- dram_map[i].base)
+ if (valid_bank_found && prev_top < dram_map[i].base)
break;
/*
@@ -252,6 +253,9 @@
}
gd->ram_size += dram_map[i].size;
+
+ prev_top = dram_map[i].base + dram_map[i].size;
+ valid_bank_found = true;
}
/*