1 /* 2 * Copyright (c) 2014 Google, Inc 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <dm.h> 9 #include <spi.h> 10 #include <spi_flash.h> 11 #include <dm/device-internal.h> 12 #include "sf_internal.h" 13 14 /* 15 * TODO(sjg@chromium.org): This is an old-style function. We should remove 16 * it when all SPI flash drivers use dm 17 */ 18 struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, 19 unsigned int max_hz, unsigned int spi_mode) 20 { 21 struct udevice *dev; 22 23 if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev)) 24 return NULL; 25 26 return dev->uclass_priv; 27 } 28 29 void spi_flash_free(struct spi_flash *flash) 30 { 31 spi_flash_remove(flash->spi->dev); 32 } 33 34 int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, 35 unsigned int max_hz, unsigned int spi_mode, 36 struct udevice **devp) 37 { 38 struct spi_slave *slave; 39 struct udevice *bus; 40 char name[20], *str; 41 int ret; 42 43 snprintf(name, sizeof(name), "%d:%d", busnum, cs); 44 str = strdup(name); 45 ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode, 46 "spi_flash_std", str, &bus, &slave); 47 if (ret) 48 return ret; 49 50 *devp = slave->dev; 51 return 0; 52 } 53 54 int spi_flash_remove(struct udevice *dev) 55 { 56 return device_remove(dev); 57 } 58 59 UCLASS_DRIVER(spi_flash) = { 60 .id = UCLASS_SPI_FLASH, 61 .name = "spi_flash", 62 .per_device_auto_alloc_size = sizeof(struct spi_flash), 63 }; 64