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rockchip: ARM64: puma-rk3399: get DRAM size from DMC init 

With the RK3399 DRAM controller (DMC) driver providing all the
infrastructure, retrieve the DRAM size from the DMC init in the
board-specific code (instead of hard-coding) for the RK3399-Q7 (Puma).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Philipp Tomsich 2017-04-28 17:31:44 +02:00 committed by Simon Glass
parent a70feb4620
commit e92e580350
1 changed files with 25 additions and 1 deletions
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26
board/theobroma-systems/puma_rk3399/puma-rk3399.c
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@ -5,10 +5,18 @@
*/ */
#include <common.h> #include <common.h>
#include <dm.h> #include <dm.h>
#include <misc.h>
#include <ram.h>
#include <dm/pinctrl.h> #include <dm/pinctrl.h>
#include <dm/uclass-internal.h> #include <dm/uclass-internal.h>
#include <asm/arch/periph.h> #include <asm/arch/periph.h>
#include <power/regulator.h> #include <power/regulator.h>
#include <u-boot/sha256.h>
DECLARE_GLOBAL_DATA_PTR;
#define RK3399_CPUID_OFF 0x7
#define RK3399_CPUID_LEN 0x10
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
@ -57,7 +65,23 @@ out:
int dram_init(void) int dram_init(void)
{ {
gd->ram_size = 0x80000000; 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=%llx, size=%x\n", ram.base, (unsigned int)ram.size);
gd->ram_size = ram.size;
return 0; return 0;
} }