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https://github.com/AsahiLinux/u-boot
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56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* (C) Copyright 2019 Rockchip Electronics Co., Ltd.
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*/
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#include <common.h>
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#include <dm.h>
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#include <ram.h>
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#include <syscon.h>
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#include <asm/arch/grf_rk3308.h>
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#include <asm/arch-rockchip/clock.h>
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#include <asm/arch-rockchip/sdram.h>
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struct dram_info {
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struct ram_info info;
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struct rk3308_grf *grf;
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};
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static int rk3308_dmc_probe(struct udevice *dev)
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{
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struct dram_info *priv = dev_get_priv(dev);
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priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
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priv->info.base = CONFIG_SYS_SDRAM_BASE;
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priv->info.size = rockchip_sdram_size((phys_addr_t)&priv->grf->os_reg2);
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return 0;
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}
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static int rk3308_dmc_get_info(struct udevice *dev, struct ram_info *info)
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{
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struct dram_info *priv = dev_get_priv(dev);
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*info = priv->info;
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return 0;
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}
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static struct ram_ops rk3308_dmc_ops = {
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.get_info = rk3308_dmc_get_info,
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};
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static const struct udevice_id rk3308_dmc_ids[] = {
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{ .compatible = "rockchip,rk3308-dmc" },
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{ }
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};
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U_BOOT_DRIVER(dmc_rk3308) = {
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.name = "rockchip_rk3308_dmc",
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.id = UCLASS_RAM,
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.of_match = rk3308_dmc_ids,
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.ops = &rk3308_dmc_ops,
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.probe = rk3308_dmc_probe,
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.priv_auto_alloc_size = sizeof(struct dram_info),
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};
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