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https://github.com/brain-hackers/u-boot-brain
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4af0d7e870
It is good practice to include common.h as the first header. This ensures that required features like the DECLARE_GLOBAL_DATA_PTR macro, configuration options and common types are available. Fix up some files which currently don't do this. This is necessary because driver model will soon start using global data and configuration in the dm/read.h header file, included via dm.h. The gd->fdt_blob value will be used to access the device tree and CONFIG options will be used to determine whether to support inline functions in the header file. Signed-off-by: Simon Glass <sjg@chromium.org>
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/*
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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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* 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 <sdhci.h>
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#include <linux/errno.h>
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#include <mach/pic32.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int pic32_sdhci_get_cd(struct sdhci_host *host)
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{
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/* PIC32 SDHCI CD errata:
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* - set CD_TEST and clear CD_TEST_INS bit
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*/
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sdhci_writeb(host, SDHCI_CTRL_CD_TEST, SDHCI_HOST_CONTROL);
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return 0;
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}
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static const struct sdhci_ops pic32_sdhci_ops = {
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.get_cd = pic32_sdhci_get_cd,
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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 sdhci_host *host = dev_get_priv(dev);
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const void *fdt = gd->fdt_blob;
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u32 f_min_max[2];
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fdt_addr_t addr;
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fdt_size_t size;
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int ret;
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addr = fdtdec_get_addr_size(fdt, dev_of_offset(dev), "reg", &size);
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if (addr == FDT_ADDR_T_NONE)
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return -EINVAL;
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host->ioaddr = ioremap(addr, size);
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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 = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
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"bus-width", 4);
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host->ops = &pic32_sdhci_ops;
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ret = fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev),
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"clock-freq-min-max", f_min_max, 2);
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if (ret) {
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printf("sdhci: clock-freq-min-max not found\n");
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return ret;
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}
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host->max_clk = f_min_max[1];
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ret = add_sdhci(host, 0, f_min_max[0]);
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if (ret)
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return ret;
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host->mmc->dev = dev;
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return 0;
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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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.probe = pic32_sdhci_probe,
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.priv_auto_alloc_size = sizeof(struct sdhci_host),
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};
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