rockchip: rk3188: Decode the actual amount of ram
From: Heiko Stuebner <heiko@...> Date: Mon, 20 Mar 2017 09:46:14 +0100
Commit-Message
There was still a static ram value set in the rk3188-board from the time where we didn't have actual sdram init code. Now the sdram init leaves the ram information in SYS_REG2 and we can decode it similarly to the rk3288. Right now we have two duplicates of that code, which is still ok and doesn't really count as common code yet, but if we get a third copy at some point from a newer soc, we should think about moving that to a more general position. Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
arch/arm/mach-rockchip/rk3188-board.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-)
Statistics
- 16 lines added
- 2 lines removed
Changes
-------------------- arch/arm/mach-rockchip/rk3188-board.c ---------------------
index 16f38559af..c370156e4c 100644
@@ -56,8 +56,22 @@ err:
int dram_init(void)
{
+ struct ram_info ram;
+ struct udevice *dev;
+ int ret;
+
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret) {
+ debug("DRAM init failed: %d\n", ret);
+ return ret;
+ }
+ ret = ram_get_info(dev, &ram);
+ if (ret) {
+ debug("Cannot get DRAM size: %d\n", ret);
+ return ret;
+ }
+ debug("SDRAM base=%lx, size=%x\n", ram.base, ram.size);
+ gd->ram_size = ram.size;
return 0;
}