183d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+ 24c2dbefdSSimon Glass /* 34c2dbefdSSimon Glass * Copyright (c) 2014 Google, Inc 44c2dbefdSSimon Glass */ 54c2dbefdSSimon Glass 64c2dbefdSSimon Glass #include <common.h> 74c2dbefdSSimon Glass #include <dm.h> 84c2dbefdSSimon Glass #include <spi.h> 94c2dbefdSSimon Glass #include <spi_flash.h> 104c2dbefdSSimon Glass #include <dm/device-internal.h> 114c2dbefdSSimon Glass #include "sf_internal.h" 124c2dbefdSSimon Glass 132588f2ddSMichal Simek DECLARE_GLOBAL_DATA_PTR; 142588f2ddSMichal Simek 158d987abcSSimon Glass int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf) 168d987abcSSimon Glass { 175e24a2efSSimon Glass return log_ret(sf_get_ops(dev)->read(dev, offset, len, buf)); 188d987abcSSimon Glass } 198d987abcSSimon Glass 208d987abcSSimon Glass int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len, 218d987abcSSimon Glass const void *buf) 228d987abcSSimon Glass { 235e24a2efSSimon Glass return log_ret(sf_get_ops(dev)->write(dev, offset, len, buf)); 248d987abcSSimon Glass } 258d987abcSSimon Glass 268d987abcSSimon Glass int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len) 278d987abcSSimon Glass { 285e24a2efSSimon Glass return log_ret(sf_get_ops(dev)->erase(dev, offset, len)); 298d987abcSSimon Glass } 308d987abcSSimon Glass 31*a58986caSSimon Glass int spl_flash_get_sw_write_prot(struct udevice *dev) 32*a58986caSSimon Glass { 33*a58986caSSimon Glass struct dm_spi_flash_ops *ops = sf_get_ops(dev); 34*a58986caSSimon Glass 35*a58986caSSimon Glass if (!ops->get_sw_write_prot) 36*a58986caSSimon Glass return -ENOSYS; 37*a58986caSSimon Glass return log_ret(ops->get_sw_write_prot(dev)); 38*a58986caSSimon Glass } 39*a58986caSSimon Glass 404c2dbefdSSimon Glass /* 414c2dbefdSSimon Glass * TODO(sjg@chromium.org): This is an old-style function. We should remove 424c2dbefdSSimon Glass * it when all SPI flash drivers use dm 434c2dbefdSSimon Glass */ 444c2dbefdSSimon Glass struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, 454c2dbefdSSimon Glass unsigned int max_hz, unsigned int spi_mode) 464c2dbefdSSimon Glass { 474c2dbefdSSimon Glass struct udevice *dev; 484c2dbefdSSimon Glass 494c2dbefdSSimon Glass if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev)) 504c2dbefdSSimon Glass return NULL; 514c2dbefdSSimon Glass 52e564f054SSimon Glass return dev_get_uclass_priv(dev); 534c2dbefdSSimon Glass } 544c2dbefdSSimon Glass 554c2dbefdSSimon Glass void spi_flash_free(struct spi_flash *flash) 564c2dbefdSSimon Glass { 57706865afSStefan Roese device_remove(flash->spi->dev, DM_REMOVE_NORMAL); 584c2dbefdSSimon Glass } 594c2dbefdSSimon Glass 604c2dbefdSSimon Glass int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, 614c2dbefdSSimon Glass unsigned int max_hz, unsigned int spi_mode, 624c2dbefdSSimon Glass struct udevice **devp) 634c2dbefdSSimon Glass { 644c2dbefdSSimon Glass struct spi_slave *slave; 654c2dbefdSSimon Glass struct udevice *bus; 663c8fb12bSSimon Glass char *str; 674c2dbefdSSimon Glass int ret; 684c2dbefdSSimon Glass 693c8fb12bSSimon Glass #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_USE_TINY_PRINTF) 703c8fb12bSSimon Glass str = "spi_flash"; 713c8fb12bSSimon Glass #else 723c8fb12bSSimon Glass char name[30]; 733c8fb12bSSimon Glass 74a5e1bcdeSHaikun.Wang@freescale.com snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs); 754c2dbefdSSimon Glass str = strdup(name); 763c8fb12bSSimon Glass #endif 774c2dbefdSSimon Glass ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode, 784c2dbefdSSimon Glass "spi_flash_std", str, &bus, &slave); 794c2dbefdSSimon Glass if (ret) 804c2dbefdSSimon Glass return ret; 814c2dbefdSSimon Glass 824c2dbefdSSimon Glass *devp = slave->dev; 834c2dbefdSSimon Glass return 0; 844c2dbefdSSimon Glass } 854c2dbefdSSimon Glass 862588f2ddSMichal Simek static int spi_flash_post_bind(struct udevice *dev) 872588f2ddSMichal Simek { 882588f2ddSMichal Simek #if defined(CONFIG_NEEDS_MANUAL_RELOC) 892588f2ddSMichal Simek struct dm_spi_flash_ops *ops = sf_get_ops(dev); 902588f2ddSMichal Simek static int reloc_done; 912588f2ddSMichal Simek 922588f2ddSMichal Simek if (!reloc_done) { 932588f2ddSMichal Simek if (ops->read) 942588f2ddSMichal Simek ops->read += gd->reloc_off; 952588f2ddSMichal Simek if (ops->write) 962588f2ddSMichal Simek ops->write += gd->reloc_off; 972588f2ddSMichal Simek if (ops->erase) 982588f2ddSMichal Simek ops->erase += gd->reloc_off; 992588f2ddSMichal Simek 1002588f2ddSMichal Simek reloc_done++; 1012588f2ddSMichal Simek } 1022588f2ddSMichal Simek #endif 1032588f2ddSMichal Simek return 0; 1042588f2ddSMichal Simek } 1052588f2ddSMichal Simek 1064c2dbefdSSimon Glass UCLASS_DRIVER(spi_flash) = { 1074c2dbefdSSimon Glass .id = UCLASS_SPI_FLASH, 1084c2dbefdSSimon Glass .name = "spi_flash", 1092588f2ddSMichal Simek .post_bind = spi_flash_post_bind, 1104c2dbefdSSimon Glass .per_device_auto_alloc_size = sizeof(struct spi_flash), 1114c2dbefdSSimon Glass }; 112