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https://github.com/AsahiLinux/u-boot
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79c830653b
Rockchip rk3399 using arasan sdhci-5.1 controller. This patch add the controller support to enable mmc device with full driver-model support, tested on rk3399 evb board. According to my test result, this driver should be OK, the command "part list mmc 0" can result in a right output, but all the mmc command failed like this: => mmc info No MMC device available Command failed, result=1 The result of get_mmc_num in cmd/mmc.c is always 0? Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org>
93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
/*
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* (C) Copyright 2016 Fuzhou Rockchip Electronics Co., Ltd
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*
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* Rockchip SD Host Controller Interface
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <libfdt.h>
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#include <malloc.h>
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#include <sdhci.h>
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/* 400KHz is max freq for card ID etc. Use that as min */
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#define EMMC_MIN_FREQ 400000
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struct rockchip_sdhc_plat {
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struct mmc_config cfg;
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struct mmc mmc;
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};
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struct rockchip_sdhc {
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struct sdhci_host host;
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void *base;
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};
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static int arasan_sdhci_probe(struct udevice *dev)
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{
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struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
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struct rockchip_sdhc_plat *plat = dev_get_platdata(dev);
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struct rockchip_sdhc *prv = dev_get_priv(dev);
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struct sdhci_host *host = &prv->host;
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int ret;
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u32 caps;
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host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
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host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD;
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caps = sdhci_readl(host, SDHCI_CAPABILITIES);
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ret = sdhci_setup_cfg(&plat->cfg, dev->name, host->bus_width,
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caps, CONFIG_ROCKCHIP_SDHCI_MAX_FREQ, EMMC_MIN_FREQ,
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host->version, host->quirks, 0);
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host->mmc = &plat->mmc;
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if (ret)
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return ret;
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host->mmc->priv = &prv->host;
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host->mmc->dev = dev;
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upriv->mmc = host->mmc;
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return sdhci_probe(dev);
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}
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static int arasan_sdhci_ofdata_to_platdata(struct udevice *dev)
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{
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struct sdhci_host *host = dev_get_priv(dev);
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host->name = dev->name;
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host->ioaddr = dev_get_addr_ptr(dev);
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return 0;
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}
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static int rockchip_sdhci_bind(struct udevice *dev)
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{
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struct rockchip_sdhc_plat *plat = dev_get_platdata(dev);
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int ret;
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ret = sdhci_bind(dev, &plat->mmc, &plat->cfg);
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if (ret)
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return ret;
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return 0;
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}
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static const struct udevice_id arasan_sdhci_ids[] = {
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{ .compatible = "arasan,sdhci-5.1" },
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{ }
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};
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U_BOOT_DRIVER(arasan_sdhci_drv) = {
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.name = "arasan_sdhci",
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.id = UCLASS_MMC,
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.of_match = arasan_sdhci_ids,
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.ofdata_to_platdata = arasan_sdhci_ofdata_to_platdata,
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.ops = &sdhci_ops,
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.bind = rockchip_sdhci_bind,
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.probe = arasan_sdhci_probe,
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.priv_auto_alloc_size = sizeof(struct rockchip_sdhc),
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.platdata_auto_alloc_size = sizeof(struct rockchip_sdhc_plat),
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};
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