u-boot/drivers/mmc/pic32_sdhci.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
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>
2018-05-07 09:34:12 -04:00

79 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Support of SDHCI for Microchip PIC32 SoC.
*
* Copyright (C) 2015 Microchip Technology Inc.
* Andrei Pistirica <andrei.pistirica@microchip.com>
*/
#include <common.h>
#include <dm.h>
#include <sdhci.h>
#include <linux/errno.h>
#include <mach/pic32.h>
DECLARE_GLOBAL_DATA_PTR;
static int pic32_sdhci_get_cd(struct sdhci_host *host)
{
/* PIC32 SDHCI CD errata:
* - set CD_TEST and clear CD_TEST_INS bit
*/
sdhci_writeb(host, SDHCI_CTRL_CD_TEST, SDHCI_HOST_CONTROL);
return 0;
}
static const struct sdhci_ops pic32_sdhci_ops = {
.get_cd = pic32_sdhci_get_cd,
};
static int pic32_sdhci_probe(struct udevice *dev)
{
struct sdhci_host *host = dev_get_priv(dev);
const void *fdt = gd->fdt_blob;
u32 f_min_max[2];
fdt_addr_t addr;
fdt_size_t size;
int ret;
addr = fdtdec_get_addr_size(fdt, dev_of_offset(dev), "reg", &size);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
host->ioaddr = ioremap(addr, size);
host->name = dev->name;
host->quirks = SDHCI_QUIRK_NO_HISPD_BIT;
host->bus_width = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
"bus-width", 4);
host->ops = &pic32_sdhci_ops;
ret = fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev),
"clock-freq-min-max", f_min_max, 2);
if (ret) {
printf("sdhci: clock-freq-min-max not found\n");
return ret;
}
host->max_clk = f_min_max[1];
ret = add_sdhci(host, 0, f_min_max[0]);
if (ret)
return ret;
host->mmc->dev = dev;
return 0;
}
static const struct udevice_id pic32_sdhci_ids[] = {
{ .compatible = "microchip,pic32mzda-sdhci" },
{ }
};
U_BOOT_DRIVER(pic32_sdhci_drv) = {
.name = "pic32_sdhci",
.id = UCLASS_MMC,
.of_match = pic32_sdhci_ids,
.probe = pic32_sdhci_probe,
.priv_auto_alloc_size = sizeof(struct sdhci_host),
};