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*2588f2ddSMichal Simek DECLARE_GLOBAL_DATA_PTR; 15*2588f2ddSMichal Simek 168d987abcSSimon Glass int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf) 178d987abcSSimon Glass { 188d987abcSSimon Glass return sf_get_ops(dev)->read(dev, offset, len, buf); 198d987abcSSimon Glass } 208d987abcSSimon Glass 218d987abcSSimon Glass int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len, 228d987abcSSimon Glass const void *buf) 238d987abcSSimon Glass { 248d987abcSSimon Glass return sf_get_ops(dev)->write(dev, offset, len, buf); 258d987abcSSimon Glass } 268d987abcSSimon Glass 278d987abcSSimon Glass int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len) 288d987abcSSimon Glass { 298d987abcSSimon Glass return sf_get_ops(dev)->erase(dev, offset, len); 308d987abcSSimon Glass } 318d987abcSSimon Glass 324c2dbefdSSimon Glass /* 334c2dbefdSSimon Glass * TODO(sjg@chromium.org): This is an old-style function. We should remove 344c2dbefdSSimon Glass * it when all SPI flash drivers use dm 354c2dbefdSSimon Glass */ 364c2dbefdSSimon Glass struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, 374c2dbefdSSimon Glass unsigned int max_hz, unsigned int spi_mode) 384c2dbefdSSimon Glass { 394c2dbefdSSimon Glass struct udevice *dev; 404c2dbefdSSimon Glass 414c2dbefdSSimon Glass if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev)) 424c2dbefdSSimon Glass return NULL; 434c2dbefdSSimon Glass 44e564f054SSimon Glass return dev_get_uclass_priv(dev); 454c2dbefdSSimon Glass } 464c2dbefdSSimon Glass 474c2dbefdSSimon Glass void spi_flash_free(struct spi_flash *flash) 484c2dbefdSSimon Glass { 494c2dbefdSSimon Glass spi_flash_remove(flash->spi->dev); 504c2dbefdSSimon Glass } 514c2dbefdSSimon Glass 524c2dbefdSSimon Glass int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, 534c2dbefdSSimon Glass unsigned int max_hz, unsigned int spi_mode, 544c2dbefdSSimon Glass struct udevice **devp) 554c2dbefdSSimon Glass { 564c2dbefdSSimon Glass struct spi_slave *slave; 574c2dbefdSSimon Glass struct udevice *bus; 58a5e1bcdeSHaikun.Wang@freescale.com char name[30], *str; 594c2dbefdSSimon Glass int ret; 604c2dbefdSSimon Glass 61a5e1bcdeSHaikun.Wang@freescale.com snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs); 624c2dbefdSSimon Glass str = strdup(name); 634c2dbefdSSimon Glass ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode, 644c2dbefdSSimon Glass "spi_flash_std", str, &bus, &slave); 654c2dbefdSSimon Glass if (ret) 664c2dbefdSSimon Glass return ret; 674c2dbefdSSimon Glass 684c2dbefdSSimon Glass *devp = slave->dev; 694c2dbefdSSimon Glass return 0; 704c2dbefdSSimon Glass } 714c2dbefdSSimon Glass 724c2dbefdSSimon Glass int spi_flash_remove(struct udevice *dev) 734c2dbefdSSimon Glass { 744c2dbefdSSimon Glass return device_remove(dev); 754c2dbefdSSimon Glass } 764c2dbefdSSimon Glass 77*2588f2ddSMichal Simek static int spi_flash_post_bind(struct udevice *dev) 78*2588f2ddSMichal Simek { 79*2588f2ddSMichal Simek #if defined(CONFIG_NEEDS_MANUAL_RELOC) 80*2588f2ddSMichal Simek struct dm_spi_flash_ops *ops = sf_get_ops(dev); 81*2588f2ddSMichal Simek static int reloc_done; 82*2588f2ddSMichal Simek 83*2588f2ddSMichal Simek if (!reloc_done) { 84*2588f2ddSMichal Simek if (ops->read) 85*2588f2ddSMichal Simek ops->read += gd->reloc_off; 86*2588f2ddSMichal Simek if (ops->write) 87*2588f2ddSMichal Simek ops->write += gd->reloc_off; 88*2588f2ddSMichal Simek if (ops->erase) 89*2588f2ddSMichal Simek ops->erase += gd->reloc_off; 90*2588f2ddSMichal Simek 91*2588f2ddSMichal Simek reloc_done++; 92*2588f2ddSMichal Simek } 93*2588f2ddSMichal Simek #endif 94*2588f2ddSMichal Simek return 0; 95*2588f2ddSMichal Simek } 96*2588f2ddSMichal Simek 974c2dbefdSSimon Glass UCLASS_DRIVER(spi_flash) = { 984c2dbefdSSimon Glass .id = UCLASS_SPI_FLASH, 994c2dbefdSSimon Glass .name = "spi_flash", 100*2588f2ddSMichal Simek .post_bind = spi_flash_post_bind, 1014c2dbefdSSimon Glass .per_device_auto_alloc_size = sizeof(struct spi_flash), 1024c2dbefdSSimon Glass }; 103