14c2dbefdSSimon Glass /* 24c2dbefdSSimon Glass * Copyright (c) 2014 Google, Inc 34c2dbefdSSimon Glass * 44c2dbefdSSimon Glass * SPDX-License-Identifier: GPL-2.0+ 54c2dbefdSSimon Glass */ 64c2dbefdSSimon Glass 74c2dbefdSSimon Glass #include <common.h> 84c2dbefdSSimon Glass #include <dm.h> 94c2dbefdSSimon Glass #include <spi.h> 104c2dbefdSSimon Glass #include <spi_flash.h> 114c2dbefdSSimon Glass #include <dm/device-internal.h> 124c2dbefdSSimon Glass #include "sf_internal.h" 134c2dbefdSSimon Glass 14*8d987abcSSimon Glass int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf) 15*8d987abcSSimon Glass { 16*8d987abcSSimon Glass return sf_get_ops(dev)->read(dev, offset, len, buf); 17*8d987abcSSimon Glass } 18*8d987abcSSimon Glass 19*8d987abcSSimon Glass int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len, 20*8d987abcSSimon Glass const void *buf) 21*8d987abcSSimon Glass { 22*8d987abcSSimon Glass return sf_get_ops(dev)->write(dev, offset, len, buf); 23*8d987abcSSimon Glass } 24*8d987abcSSimon Glass 25*8d987abcSSimon Glass int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len) 26*8d987abcSSimon Glass { 27*8d987abcSSimon Glass return sf_get_ops(dev)->erase(dev, offset, len); 28*8d987abcSSimon Glass } 29*8d987abcSSimon Glass 304c2dbefdSSimon Glass /* 314c2dbefdSSimon Glass * TODO(sjg@chromium.org): This is an old-style function. We should remove 324c2dbefdSSimon Glass * it when all SPI flash drivers use dm 334c2dbefdSSimon Glass */ 344c2dbefdSSimon Glass struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, 354c2dbefdSSimon Glass unsigned int max_hz, unsigned int spi_mode) 364c2dbefdSSimon Glass { 374c2dbefdSSimon Glass struct udevice *dev; 384c2dbefdSSimon Glass 394c2dbefdSSimon Glass if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev)) 404c2dbefdSSimon Glass return NULL; 414c2dbefdSSimon Glass 42e564f054SSimon Glass return dev_get_uclass_priv(dev); 434c2dbefdSSimon Glass } 444c2dbefdSSimon Glass 454c2dbefdSSimon Glass void spi_flash_free(struct spi_flash *flash) 464c2dbefdSSimon Glass { 474c2dbefdSSimon Glass spi_flash_remove(flash->spi->dev); 484c2dbefdSSimon Glass } 494c2dbefdSSimon Glass 504c2dbefdSSimon Glass int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, 514c2dbefdSSimon Glass unsigned int max_hz, unsigned int spi_mode, 524c2dbefdSSimon Glass struct udevice **devp) 534c2dbefdSSimon Glass { 544c2dbefdSSimon Glass struct spi_slave *slave; 554c2dbefdSSimon Glass struct udevice *bus; 564c2dbefdSSimon Glass char name[20], *str; 574c2dbefdSSimon Glass int ret; 584c2dbefdSSimon Glass 594c2dbefdSSimon Glass snprintf(name, sizeof(name), "%d:%d", busnum, cs); 604c2dbefdSSimon Glass str = strdup(name); 614c2dbefdSSimon Glass ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode, 624c2dbefdSSimon Glass "spi_flash_std", str, &bus, &slave); 634c2dbefdSSimon Glass if (ret) 644c2dbefdSSimon Glass return ret; 654c2dbefdSSimon Glass 664c2dbefdSSimon Glass *devp = slave->dev; 674c2dbefdSSimon Glass return 0; 684c2dbefdSSimon Glass } 694c2dbefdSSimon Glass 704c2dbefdSSimon Glass int spi_flash_remove(struct udevice *dev) 714c2dbefdSSimon Glass { 724c2dbefdSSimon Glass return device_remove(dev); 734c2dbefdSSimon Glass } 744c2dbefdSSimon Glass 754c2dbefdSSimon Glass UCLASS_DRIVER(spi_flash) = { 764c2dbefdSSimon Glass .id = UCLASS_SPI_FLASH, 774c2dbefdSSimon Glass .name = "spi_flash", 784c2dbefdSSimon Glass .per_device_auto_alloc_size = sizeof(struct spi_flash), 794c2dbefdSSimon Glass }; 80