arm: mvebu: a37xx: Fix calling build_mem_map()

Function build_mem_map() modifies global variable mem_map. This variable is
used by the get_page_table_size() function which is called by function
arm_reserve_mmu() (as aliased macro PGTABLE_SIZE). Function
arm_reserve_mmu() is called earlier than enable_caches() which calls
build_mem_map(). So arm_reserve_mmu() does not calculate reserved memory
correctly.

Fix this issue by calling build_mem_map() from a3700_dram_init() which is
called before arm_reserve_mmu().

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

diff --git a/arch/arm/mach-mvebu/armada3700/cpu.c b/arch/arm/mach-mvebu/armada3700/cpu.c
index 7702028..57a811b 100644 (file)
--- a/arch/arm/mach-mvebu/armada3700/cpu.c
+++ b/arch/arm/mach-mvebu/armada3700/cpu.c
@@ -142,8 +142,6 @@ static void build_mem_map(void)
 
 void enable_caches(void)
 {
-       build_mem_map();
-
        icache_enable();
        dcache_enable();
 }
@@ -152,6 +150,8 @@ int a3700_dram_init(void)
 {
        int win;
 
+       build_mem_map();
+
        gd->ram_size = 0;
        for (win = 0; win < MVEBU_CPU_DEC_WINS; ++win) {
                u32 base, tgt, size;