mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 22:33:18 +00:00
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>
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2014 Google, Inc
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*/
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#include <common.h>
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#include <dm.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <dm/device-internal.h>
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#include "sf_internal.h"
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DECLARE_GLOBAL_DATA_PTR;
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int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf)
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{
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return sf_get_ops(dev)->read(dev, offset, len, buf);
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}
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int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len,
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const void *buf)
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{
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return sf_get_ops(dev)->write(dev, offset, len, buf);
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}
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int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len)
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{
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return sf_get_ops(dev)->erase(dev, offset, len);
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}
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/*
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* TODO(sjg@chromium.org): This is an old-style function. We should remove
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* it when all SPI flash drivers use dm
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*/
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struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
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unsigned int max_hz, unsigned int spi_mode)
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{
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struct udevice *dev;
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if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev))
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return NULL;
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return dev_get_uclass_priv(dev);
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}
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void spi_flash_free(struct spi_flash *flash)
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{
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device_remove(flash->spi->dev, DM_REMOVE_NORMAL);
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}
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int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
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unsigned int max_hz, unsigned int spi_mode,
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struct udevice **devp)
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{
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struct spi_slave *slave;
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struct udevice *bus;
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char *str;
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int ret;
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#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_USE_TINY_PRINTF)
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str = "spi_flash";
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#else
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char name[30];
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snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs);
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str = strdup(name);
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#endif
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ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
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"spi_flash_std", str, &bus, &slave);
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if (ret)
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return ret;
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*devp = slave->dev;
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return 0;
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}
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static int spi_flash_post_bind(struct udevice *dev)
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{
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#if defined(CONFIG_NEEDS_MANUAL_RELOC)
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struct dm_spi_flash_ops *ops = sf_get_ops(dev);
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static int reloc_done;
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if (!reloc_done) {
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if (ops->read)
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ops->read += gd->reloc_off;
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if (ops->write)
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ops->write += gd->reloc_off;
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if (ops->erase)
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ops->erase += gd->reloc_off;
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reloc_done++;
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}
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#endif
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return 0;
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}
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UCLASS_DRIVER(spi_flash) = {
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.id = UCLASS_SPI_FLASH,
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.name = "spi_flash",
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.post_bind = spi_flash_post_bind,
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.per_device_auto_alloc_size = sizeof(struct spi_flash),
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};
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