From: Chris Morgan macromorgan@hotmail.com
Allow individual boards or SoCs to alter the RAM bank addition logic by defining a __weak function that these boards can then override if needed. In the event this function fails, fallback to the default detection logic.
Signed-off-by: Chris Morgan macromorgan@hotmail.com --- arch/arm/mach-rockchip/sdram.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/arm/mach-rockchip/sdram.c b/arch/arm/mach-rockchip/sdram.c index 0d9a0aef6f..53aa19feca 100644 --- a/arch/arm/mach-rockchip/sdram.c +++ b/arch/arm/mach-rockchip/sdram.c @@ -35,11 +35,18 @@ struct tos_parameter_t { s64 reserve[8]; };
+__weak int rk_get_ram_banks(void) +{ + return -EINVAL; +} + int dram_init_banksize(void) { size_t ram_top = (unsigned long)(gd->ram_size + CFG_SYS_SDRAM_BASE); size_t top = min((unsigned long)ram_top, (unsigned long)(gd->ram_top));
+ if (!rk_get_ram_banks()) + return 0; #ifdef CONFIG_ARM64 /* Reserve 0x200000 for ATF bl31 */ gd->bd->bi_dram[0].start = 0x200000;