| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * (C) Copyright 2017 Rockchip Electronics Co., Ltd. |
| */ |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <ram.h> |
| #include <syscon.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/grf_rk3128.h> |
| #include <asm/arch/sdram_common.h> |
| |
| struct dram_info { |
| struct ram_info info; |
| struct rk3128_grf *grf; |
| }; |
| |
| static int rk3128_dmc_probe(struct udevice *dev) |
| { |
| struct dram_info *priv = dev_get_priv(dev); |
| |
| priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); |
| debug("%s: grf=%p\n", __func__, priv->grf); |
| priv->info.base = CONFIG_SYS_SDRAM_BASE; |
| priv->info.size = rockchip_sdram_size( |
| (phys_addr_t)&priv->grf->os_reg[1]); |
| |
| return 0; |
| } |
| |
| static int rk3128_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 rk3128_dmc_ops = { |
| .get_info = rk3128_dmc_get_info, |
| }; |
| |
| static const struct udevice_id rk3128_dmc_ids[] = { |
| { .compatible = "rockchip,rk3128-dmc" }, |
| { } |
| }; |
| |
| U_BOOT_DRIVER(dmc_rk3128) = { |
| .name = "rockchip_rk3128_dmc", |
| .id = UCLASS_RAM, |
| .of_match = rk3128_dmc_ids, |
| .ops = &rk3128_dmc_ops, |
| .probe = rk3128_dmc_probe, |
| .priv_auto_alloc_size = sizeof(struct dram_info), |
| }; |