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/*
* Copyright (c) 2014 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <spi.h>
#include <spi_flash.h>
#include <dm/device-internal.h>
#include "sf_internal.h"
int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf)
{
return sf_get_ops(dev)->read(dev, offset, len, buf);
}
int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len,
const void *buf)
{
return sf_get_ops(dev)->write(dev, offset, len, buf);
}
int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len)
{
return sf_get_ops(dev)->erase(dev, offset, len);
}
/*
* TODO(sjg@chromium.org): This is an old-style function. We should remove
* it when all SPI flash drivers use dm
*/
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode)
{
struct udevice *dev;
if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev))
return NULL;
return dev_get_uclass_priv(dev);
}
void spi_flash_free(struct spi_flash *flash)
{
spi_flash_remove(flash->spi->dev);
}
int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode,
struct udevice **devp)
{
struct spi_slave *slave;
struct udevice *bus;
char name[30], *str;
int ret;
snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs);
str = strdup(name);
ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
"spi_flash_std", str, &bus, &slave);
if (ret)
return ret;
*devp = slave->dev;
return 0;
}
int spi_flash_remove(struct udevice *dev)
{
return device_remove(dev);
}
UCLASS_DRIVER(spi_flash) = {
.id = UCLASS_SPI_FLASH,
.name = "spi_flash",
.per_device_auto_alloc_size = sizeof(struct spi_flash),
};
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