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ram: rockchip: Add rk3588 ddr driver support 

Add ddr driver for rk3588 to get the ram capacity.

Co-developed-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jagan Teki 2023-01-30 20:27:38 +05:30 committed by Kever Yang
parent b851c006a1
commit 3b7f29f2c8
2 changed files with 58 additions and 0 deletions
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1
drivers/ram/rockchip/Makefile
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@ -14,5 +14,6 @@ obj-$(CONFIG_ROCKCHIP_RK3308) = sdram_rk3308.o
obj-$(CONFIG_ROCKCHIP_RK3328) = sdram_rk3328.o sdram_pctl_px30.o sdram_phy_px30.o
obj-$(CONFIG_ROCKCHIP_RK3399) += sdram_rk3399.o
obj-$(CONFIG_ROCKCHIP_RK3568) += sdram_rk3568.o
obj-$(CONFIG_ROCKCHIP_RK3588) += sdram_rk3588.o
obj-$(CONFIG_ROCKCHIP_RV1126) += sdram_rv1126.o sdram_pctl_px30.o
obj-$(CONFIG_ROCKCHIP_SDRAM_COMMON) += sdram_common.o

57
drivers/ram/rockchip/sdram_rk3588.c Normal file
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@ -0,0 +1,57 @@
// 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_rk3588.h>
#include <asm/arch-rockchip/sdram.h>
struct dram_info {
struct ram_info info;
struct rk3588_pmu1grf *pmugrf;
};
static int rk3588_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 = CFG_SYS_SDRAM_BASE;
priv->info.size =
rockchip_sdram_size((phys_addr_t)&priv->pmugrf->os_reg[2]) +
rockchip_sdram_size((phys_addr_t)&priv->pmugrf->os_reg[4]);
return 0;
}
static int rk3588_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 rk3588_dmc_ops = {
.get_info = rk3588_dmc_get_info,
};
static const struct udevice_id rk3588_dmc_ids[] = {
{ .compatible = "rockchip,rk3588-dmc" },
{ }
};
U_BOOT_DRIVER(dmc_rk3588) = {
.name = "rockchip_rk3588_dmc",
.id = UCLASS_RAM,
.of_match = rk3588_dmc_ids,
.ops = &rk3588_dmc_ops,
.probe = rk3588_dmc_probe,
.priv_auto = sizeof(struct dram_info),
};