mirror of
https://github.com/AsahiLinux/u-boot
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c43acfdc24
Rockchip may use this sdram copy of source code for both open source and internal project, update the license to use both GPL2.0+ and BSD-3 Clause. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* (C) Copyright 2017 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/clock.h>
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#include <asm/arch/grf_rk3328.h>
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#include <asm/arch/sdram_common.h>
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struct dram_info {
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struct ram_info info;
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struct rk3328_grf_regs *grf;
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};
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static int rk3328_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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debug("%s: grf=%p\n", __func__, priv->grf);
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priv->info.base = CONFIG_SYS_SDRAM_BASE;
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priv->info.size = rockchip_sdram_size(
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(phys_addr_t)&priv->grf->os_reg[2]);
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return 0;
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}
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static int rk3328_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 rk3328_dmc_ops = {
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.get_info = rk3328_dmc_get_info,
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};
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static const struct udevice_id rk3328_dmc_ids[] = {
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{ .compatible = "rockchip,rk3328-dmc" },
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{ }
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};
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U_BOOT_DRIVER(dmc_rk3328) = {
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.name = "rockchip_rk3328_dmc",
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.id = UCLASS_RAM,
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.of_match = rk3328_dmc_ids,
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.ops = &rk3328_dmc_ops,
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.probe = rk3328_dmc_probe,
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.priv_auto_alloc_size = sizeof(struct dram_info),
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};
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