mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 02:33:07 +00:00
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* (C) Copyright 2021 Rockchip Electronics Co., Ltd.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <dm.h>
|
||
|
|
#include <ram.h>
|
||
|
|
#include <syscon.h>
|
||
|
|
#include <asm/arch-rockchip/clock.h>
|
||
|
|
#include <asm/arch-rockchip/grf_rk3568.h>
|
||
|
|
#include <asm/arch-rockchip/sdram.h>
|
||
|
|
|
||
|
|
struct dram_info {
|
||
|
|
struct ram_info info;
|
||
|
|
struct rk3568_pmugrf *pmugrf;
|
||
|
|
};
|
||
|
|
|
||
|
|
static int rk3568_dmc_probe(struct udevice *dev)
|
||
|
|
{
|
||
|
|
struct dram_info *priv = dev_get_priv(dev);
|
||
|
|
|
||
|
|
priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF);
|
||
|
|
priv->info.base = CONFIG_SYS_SDRAM_BASE;
|
||
|
|
priv->info.size =
|
||
|
|
rockchip_sdram_size((phys_addr_t)&priv->pmugrf->pmu_os_reg2);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rk3568_dmc_get_info(struct udevice *dev, struct ram_info *info)
|
||
|
|
{
|
||
|
|
struct dram_info *priv = dev_get_priv(dev);
|
||
|
|
|
||
|
|
*info = priv->info;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct ram_ops rk3568_dmc_ops = {
|
||
|
|
.get_info = rk3568_dmc_get_info,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct udevice_id rk3568_dmc_ids[] = {
|
||
|
|
{ .compatible = "rockchip,rk3568-dmc" },
|
||
|
|
{ }
|
||
|
|
};
|
||
|
|
|
||
|
|
U_BOOT_DRIVER(dmc_rk3568) = {
|
||
|
|
.name = "rockchip_rk3568_dmc",
|
||
|
|
.id = UCLASS_RAM,
|
||
|
|
.of_match = rk3568_dmc_ids,
|
||
|
|
.ops = &rk3568_dmc_ops,
|
||
|
|
.probe = rk3568_dmc_probe,
|
||
|
|
.priv_auto = sizeof(struct dram_info),
|
||
|
|
};
|