If CONFIG_RAM is enabled, use the ram device to get the base/size of memory. This provides an easy way for boards/cpus to hook into the dram_init logic, without needing to provide a second SYS_CPU.
Signed-off-by: Sean Anderson seanga2@gmail.com ---
(no changes since v1)
arch/riscv/cpu/generic/dram.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/arch/riscv/cpu/generic/dram.c b/arch/riscv/cpu/generic/dram.c index 1dc77efeca..fbcd4ddf5f 100644 --- a/arch/riscv/cpu/generic/dram.c +++ b/arch/riscv/cpu/generic/dram.c @@ -4,15 +4,41 @@ */
#include <common.h> +#include <dm.h> #include <fdtdec.h> #include <init.h> +#include <log.h> +#include <ram.h> #include <linux/sizes.h>
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void) { +#if CONFIG_IS_ENABLED(RAM) + int ret; + struct ram_info info; + struct udevice *dev; + + ret = uclass_get_device(UCLASS_RAM, 0, &dev); + if (ret) { + debug("DRAM init failed: %d\n", ret); + return ret; + } + + ret = ram_get_info(dev, &info); + if (ret) { + debug("Cannot get DRAM size: %d\n", ret); + return ret; + } + + gd->ram_base = info.base; + gd->ram_size = info.size; + + return 0; +#else return fdtdec_setup_mem_size_base(); +#endif }
int dram_init_banksize(void)