mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-23 11:29:43 +09:00
caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Support of SDHCI for Microchip PIC32 SoC.
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*
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* Copyright (C) 2015 Microchip Technology Inc.
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* Andrei Pistirica <andrei.pistirica@microchip.com>
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*/
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#include <dm.h>
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#include <sdhci.h>
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#include <clk.h>
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struct pic32_sdhci_plat {
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struct mmc_config cfg;
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struct mmc mmc;
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};
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static int pic32_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 pic32_sdhci_plat *plat = dev_get_platdata(dev);
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struct sdhci_host *host = dev_get_priv(dev);
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struct clk clk;
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ulong clk_rate;
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int ret;
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ret = clk_get_by_name(dev, "base_clk", &clk);
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if (ret)
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return ret;
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clk_rate = clk_get_rate(&clk);
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clk_free(&clk);
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if (IS_ERR_VALUE(clk_rate))
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return clk_rate;
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host->ioaddr = dev_remap_addr(dev);
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if (!host->ioaddr)
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return -EINVAL;
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host->name = dev->name;
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host->quirks = SDHCI_QUIRK_NO_HISPD_BIT;
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host->bus_width = dev_read_u32_default(dev, "bus-width", 4);
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host->max_clk = clk_rate;
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host->mmc = &plat->mmc;
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host->mmc->dev = dev;
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ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
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if (ret)
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return ret;
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host->mmc->priv = host;
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upriv->mmc = host->mmc;
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ret = sdhci_probe(dev);
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if (ret)
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return ret;
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if (!dev_read_bool(dev, "microchip,use-sdcd")) {
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// Use workaround 1 for erratum #15 by default
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u8 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
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ctrl = (ctrl & ~SDHCI_CTRL_CD_TEST_INS) | SDHCI_CTRL_CD_TEST;
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sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
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}
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return 0;
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}
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static int pic32_sdhci_bind(struct udevice *dev)
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{
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struct pic32_sdhci_plat *plat = dev_get_platdata(dev);
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return sdhci_bind(dev, &plat->mmc, &plat->cfg);
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}
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static const struct udevice_id pic32_sdhci_ids[] = {
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{ .compatible = "microchip,pic32mzda-sdhci" },
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{ }
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};
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U_BOOT_DRIVER(pic32_sdhci_drv) = {
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.name = "pic32_sdhci",
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.id = UCLASS_MMC,
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.of_match = pic32_sdhci_ids,
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.ops = &sdhci_ops,
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.bind = pic32_sdhci_bind,
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.probe = pic32_sdhci_probe,
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.priv_auto = sizeof(struct sdhci_host),
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.plat_auto = sizeof(struct pic32_sdhci_plat)
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};
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