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c0d9ac0b00
Add ddr driver for rk3576 to get the ram capacity. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
36 lines
750 B
C
36 lines
750 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2024 Rockchip Electronics Co., Ltd.
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*/
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#include <dm.h>
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#include <ram.h>
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#include <asm/arch-rockchip/sdram.h>
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#define PMU1GRF_BASE 0x26026000
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#define OS_REG2_REG 0x208
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static int rk3576_dmc_get_info(struct udevice *dev, struct ram_info *info)
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{
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info->base = CFG_SYS_SDRAM_BASE;
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info->size = rockchip_sdram_size(PMU1GRF_BASE + OS_REG2_REG);
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return 0;
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}
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static struct ram_ops rk3576_dmc_ops = {
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.get_info = rk3576_dmc_get_info,
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};
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static const struct udevice_id rk3576_dmc_ids[] = {
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{ .compatible = "rockchip,rk3576-dmc" },
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{ }
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};
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U_BOOT_DRIVER(rockchip_rk3576_dmc) = {
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.name = "rockchip_rk3576_dmc",
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.id = UCLASS_RAM,
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.of_match = rk3576_dmc_ids,
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.ops = &rk3576_dmc_ops,
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};
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