| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright 2019 IBM Corp. |
| * Eddie James <eajames@linux.ibm.com> |
| */ |
| |
| #include <common.h> |
| #include <clk.h> |
| #include <dm.h> |
| #include <malloc.h> |
| #include <sdhci.h> |
| #include <linux/err.h> |
| |
| struct aspeed_sdhci_plat { |
| struct mmc_config cfg; |
| struct mmc mmc; |
| }; |
| |
| static int aspeed_sdhci_probe(struct udevice *dev) |
| { |
| struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); |
| struct aspeed_sdhci_plat *plat = dev_get_plat(dev); |
| struct sdhci_host *host = dev_get_priv(dev); |
| u32 max_clk; |
| struct clk clk; |
| int ret; |
| |
| ret = clk_get_by_index(dev, 0, &clk); |
| if (ret) { |
| debug("%s: clock get failed %d\n", __func__, ret); |
| return ret; |
| } |
| |
| ret = clk_enable(&clk); |
| if (ret) { |
| debug("%s: clock enable failed %d\n", __func__, ret); |
| goto free; |
| } |
| |
| host->name = dev->name; |
| host->ioaddr = dev_read_addr_ptr(dev); |
| |
| max_clk = clk_get_rate(&clk); |
| if (IS_ERR_VALUE(max_clk)) { |
| ret = max_clk; |
| debug("%s: clock rate get failed %d\n", __func__, ret); |
| goto err; |
| } |
| |
| host->max_clk = max_clk; |
| host->mmc = &plat->mmc; |
| host->mmc->dev = dev; |
| host->mmc->priv = host; |
| upriv->mmc = host->mmc; |
| |
| ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0); |
| if (ret) |
| goto err; |
| |
| ret = sdhci_probe(dev); |
| if (ret) |
| goto err; |
| |
| return 0; |
| |
| err: |
| clk_disable(&clk); |
| free: |
| clk_free(&clk); |
| return ret; |
| } |
| |
| static int aspeed_sdhci_bind(struct udevice *dev) |
| { |
| struct aspeed_sdhci_plat *plat = dev_get_plat(dev); |
| |
| return sdhci_bind(dev, &plat->mmc, &plat->cfg); |
| } |
| |
| static const struct udevice_id aspeed_sdhci_ids[] = { |
| { .compatible = "aspeed,ast2400-sdhci" }, |
| { .compatible = "aspeed,ast2500-sdhci" }, |
| { .compatible = "aspeed,ast2600-sdhci" }, |
| { } |
| }; |
| |
| U_BOOT_DRIVER(aspeed_sdhci_drv) = { |
| .name = "aspeed_sdhci", |
| .id = UCLASS_MMC, |
| .of_match = aspeed_sdhci_ids, |
| .ops = &sdhci_ops, |
| .bind = aspeed_sdhci_bind, |
| .probe = aspeed_sdhci_probe, |
| .priv_auto = sizeof(struct sdhci_host), |
| .plat_auto = sizeof(struct aspeed_sdhci_plat), |
| }; |