| /* |
| * (C) Copyright 2016 Rockchip Electronics Co., Ltd. |
| * |
| * SPDX-License-Identifier: GPL-2.0 |
| */ |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <ram.h> |
| #include <syscon.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/grf_rk3368.h> |
| #include <asm/arch/sdram_common.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| struct dram_info { |
| struct ram_info info; |
| struct rk3368_pmu_grf *pmugrf; |
| }; |
| |
| static int rk3368_dmc_probe(struct udevice *dev) |
| { |
| struct dram_info *priv = dev_get_priv(dev); |
| |
| priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF); |
| debug("%s: grf=%p\n", __func__, priv->pmugrf); |
| priv->info.base = CONFIG_SYS_SDRAM_BASE; |
| priv->info.size = rockchip_sdram_size( |
| (phys_addr_t)&priv->pmugrf->os_reg[2]); |
| |
| return 0; |
| } |
| |
| static int rk3368_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 rk3368_dmc_ops = { |
| .get_info = rk3368_dmc_get_info, |
| }; |
| |
| |
| static const struct udevice_id rk3368_dmc_ids[] = { |
| { .compatible = "rockchip,rk3368-dmc" }, |
| { } |
| }; |
| |
| U_BOOT_DRIVER(dmc_rk3368) = { |
| .name = "rockchip_rk3368_dmc", |
| .id = UCLASS_RAM, |
| .of_match = rk3368_dmc_ids, |
| .ops = &rk3368_dmc_ops, |
| .probe = rk3368_dmc_probe, |
| .priv_auto_alloc_size = sizeof(struct dram_info), |
| }; |