mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-12 06:06:15 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013 - 2015 Xilinx, Inc.
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*
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* Xilinx Zynq SD Host Controller Interface
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*/
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#include <clk.h>
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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 <linux/libfdt.h>
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#include <malloc.h>
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#include <sdhci.h>
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DECLARE_GLOBAL_DATA_PTR;
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struct arasan_sdhci_plat {
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struct mmc_config cfg;
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struct mmc mmc;
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unsigned int f_max;
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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 arasan_sdhci_plat *plat = dev_get_platdata(dev);
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struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
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struct sdhci_host *host = dev_get_priv(dev);
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struct clk clk;
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unsigned long clock;
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int ret;
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ret = clk_get_by_index(dev, 0, &clk);
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if (ret < 0) {
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dev_err(dev, "failed to get clock\n");
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return ret;
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}
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clock = clk_get_rate(&clk);
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if (IS_ERR_VALUE(clock)) {
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dev_err(dev, "failed to get rate\n");
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return clock;
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}
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debug("%s: CLK %ld\n", __func__, clock);
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ret = clk_enable(&clk);
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if (ret && ret != -ENOSYS) {
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dev_err(dev, "failed to enable clock\n");
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return ret;
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}
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host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD |
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SDHCI_QUIRK_BROKEN_R1B;
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#ifdef CONFIG_ZYNQ_HISPD_BROKEN
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host->quirks |= SDHCI_QUIRK_BROKEN_HISPD_MODE;
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#endif
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host->max_clk = clock;
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ret = sdhci_setup_cfg(&plat->cfg, host, plat->f_max,
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CONFIG_ZYNQ_SDHCI_MIN_FREQ);
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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 = 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 arasan_sdhci_plat *plat = dev_get_platdata(dev);
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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 = (void *)devfdt_get_addr(dev);
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plat->f_max = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
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"max-frequency", CONFIG_ZYNQ_SDHCI_MAX_FREQ);
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return 0;
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}
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static int arasan_sdhci_bind(struct udevice *dev)
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{
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struct arasan_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 arasan_sdhci_ids[] = {
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{ .compatible = "arasan,sdhci-8.9a" },
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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 = arasan_sdhci_bind,
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.probe = arasan_sdhci_probe,
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.priv_auto_alloc_size = sizeof(struct sdhci_host),
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.platdata_auto_alloc_size = sizeof(struct arasan_sdhci_plat),
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};
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