static int __devinit generic_onenand_probe(struct device *dev) { struct onenand_info *info; struct platform_device *pdev = to_platform_device(dev); struct flash_platform_data *pdata = pdev->dev.platform_data; struct resource *res = pdev->resource; unsigned long size = res->end - res->start + 1; int err; info = kmalloc(sizeof(struct onenand_info), GFP_KERNEL); if (!info) return -ENOMEM; memset(info, 0, sizeof(struct onenand_info)); if (!request_mem_region(res->start, size, dev->driver->name)) { err = -EBUSY; goto out_free_info; } info->onenand.base = ioremap(res->start, size); if (!info->onenand.base) { err = -ENOMEM; goto out_release_mem_region; } info->onenand.mmcontrol = pdata->mmcontrol; info->mtd.name = pdev->dev.bus_id; info->mtd.priv = &info->onenand; info->mtd.owner = THIS_MODULE; if (onenand_scan(&info->mtd, 1)) { err = -ENXIO; goto out_iounmap; } #ifdef CONFIG_MTD_PARTITIONS err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0); if (err > 0) add_mtd_partitions(&info->mtd, info->parts, err); else if (err < 0 && pdata->parts) add_mtd_partitions(&info->mtd, pdata->parts, pdata->nr_parts); else #endif err = add_mtd_device(&info->mtd); dev_set_drvdata(&pdev->dev, info); return 0; out_iounmap: iounmap(info->onenand.base); out_release_mem_region: release_mem_region(res->start, size); out_free_info: kfree(info); return err; }
void onenand_init(void) { memset(&onenand_mtd, 0, sizeof(struct mtd_info)); memset(&onenand_chip, 0, sizeof(struct onenand_chip)); onenand_mtd.priv = &onenand_chip; #ifdef CONFIG_USE_ONENAND_BOARD_INIT /* * It's used for some board init required */ onenand_board_init(&onenand_mtd); #else onenand_chip.base = (void *) CFG_ONENAND_BASE; #endif puts("\r"); onenand_scan(&onenand_mtd, 1); puts("OneNAND: "); print_size(onenand_mtd.size, "\n"); #ifdef CONFIG_MTD_DEVICE /* * Add MTD device so that we can reference it later * via the mtdcore infrastructure (e.g. ubi). */ onenand_mtd.name = dev_name; add_mtd_device(&onenand_mtd); #endif }
static int __devinit generic_onenand_probe(struct platform_device *pdev) { struct onenand_info *info; struct onenand_platform_data *pdata = pdev->dev.platform_data; struct resource *res = pdev->resource; unsigned long size = resource_size(res); int err; info = kzalloc(sizeof(struct onenand_info), GFP_KERNEL); if (!info) return -ENOMEM; if (!request_mem_region(res->start, size, dev_name(&pdev->dev))) { err = -EBUSY; goto out_free_info; } info->onenand.base = ioremap(res->start, size); if (!info->onenand.base) { err = -ENOMEM; goto out_release_mem_region; } info->onenand.mmcontrol = pdata ? pdata->mmcontrol : 0; info->onenand.irq = platform_get_irq(pdev, 0); info->mtd.name = dev_name(&pdev->dev); info->mtd.priv = &info->onenand; info->mtd.owner = THIS_MODULE; if (onenand_scan(&info->mtd, 1)) { err = -ENXIO; goto out_iounmap; } err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0); if (err > 0) mtd_device_register(&info->mtd, info->parts, err); else if (err <= 0 && pdata && pdata->parts) mtd_device_register(&info->mtd, pdata->parts, pdata->nr_parts); else err = mtd_device_register(&info->mtd, NULL, 0); platform_set_drvdata(pdev, info); return 0; out_iounmap: iounmap(info->onenand.base); out_release_mem_region: release_mem_region(res->start, size); out_free_info: kfree(info); return err; }
void onenand_init(void) { memset(&onenand_mtd, 0, sizeof(struct mtd_info)); memset(&onenand_chip, 0, sizeof(struct onenand_chip)); onenand_chip.base = (void *) CFG_ONENAND_BASE; onenand_mtd.priv = &onenand_chip; onenand_scan(&onenand_mtd, 1); puts("OneNAND: "); print_size(onenand_mtd.size, "\n"); }
static int generic_onenand_probe(struct platform_device *pdev) { struct onenand_info *info; struct onenand_platform_data *pdata = dev_get_platdata(&pdev->dev); struct resource *res = pdev->resource; unsigned long size = resource_size(res); int err; info = kzalloc(sizeof(struct onenand_info), GFP_KERNEL); if (!info) return -ENOMEM; if (!request_mem_region(res->start, size, dev_name(&pdev->dev))) { err = -EBUSY; goto out_free_info; } info->onenand.base = ioremap(res->start, size); if (!info->onenand.base) { err = -ENOMEM; goto out_release_mem_region; } info->onenand.mmcontrol = pdata ? pdata->mmcontrol : NULL; info->onenand.irq = platform_get_irq(pdev, 0); info->mtd.dev.parent = &pdev->dev; info->mtd.priv = &info->onenand; if (onenand_scan(&info->mtd, 1)) { err = -ENXIO; goto out_iounmap; } err = mtd_device_parse_register(&info->mtd, NULL, NULL, pdata ? pdata->parts : NULL, pdata ? pdata->nr_parts : 0); platform_set_drvdata(pdev, info); return 0; out_iounmap: iounmap(info->onenand.base); out_release_mem_region: release_mem_region(res->start, size); out_free_info: kfree(info); return err; }
void env_relocate_spec_onenand(void) { struct mtd_info *onenand; /* the following commands operate on the current device */ if (onenand_curr_device < 0 || onenand_curr_device >= CFG_MAX_ONENAND_DEVICE || !onenand_info[onenand_curr_device].name) { puts("\nno devices available\n"); return 1; } onenand = &onenand_info[onenand_curr_device]; #if !defined(ENV_IS_EMBEDDED) size_t total; int ret, i; u_char *data; data = (u_char*)malloc(CFG_ENV_SIZE); total = CFG_ENV_SIZE; for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) { if (onenand_scan(&onenand_info[i], 1) == 0) { ret = onenand_read(onenand, CFG_ENV_OFFSET, &total, (u_char*)data); env_ptr = data; if (ret || total != CFG_ENV_SIZE) return use_default(); if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) return use_default(); } else { printf("no devices available\n"); return use_default(); } } /* */ #endif /* ! ENV_IS_EMBEDDED */ }
static int omap2_onenand_probe(struct platform_device *pdev) { struct omap_onenand_platform_data *pdata; struct omap2_onenand *c; struct onenand_chip *this; int r; struct resource *res; struct mtd_part_parser_data ppdata = {}; pdata = dev_get_platdata(&pdev->dev); if (pdata == NULL) { dev_err(&pdev->dev, "platform data missing\n"); return -ENODEV; } c = kzalloc(sizeof(struct omap2_onenand), GFP_KERNEL); if (!c) return -ENOMEM; init_completion(&c->irq_done); init_completion(&c->dma_done); c->flags = pdata->flags; c->gpmc_cs = pdata->cs; c->gpio_irq = pdata->gpio_irq; c->dma_channel = pdata->dma_channel; if (c->dma_channel < 0) { /* if -1, don't use DMA */ c->gpio_irq = 0; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) { r = -EINVAL; dev_err(&pdev->dev, "error getting memory resource\n"); goto err_kfree; } c->phys_base = res->start; c->mem_size = resource_size(res); if (request_mem_region(c->phys_base, c->mem_size, pdev->dev.driver->name) == NULL) { dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, size: 0x%x\n", c->phys_base, c->mem_size); r = -EBUSY; goto err_kfree; } c->onenand.base = ioremap(c->phys_base, c->mem_size); if (c->onenand.base == NULL) { r = -ENOMEM; goto err_release_mem_region; } if (pdata->onenand_setup != NULL) { r = pdata->onenand_setup(c->onenand.base, &c->freq); if (r < 0) { dev_err(&pdev->dev, "Onenand platform setup failed: " "%d\n", r); goto err_iounmap; } c->setup = pdata->onenand_setup; } if (c->gpio_irq) { if ((r = gpio_request(c->gpio_irq, "OneNAND irq")) < 0) { dev_err(&pdev->dev, "Failed to request GPIO%d for " "OneNAND\n", c->gpio_irq); goto err_iounmap; } gpio_direction_input(c->gpio_irq); if ((r = request_irq(gpio_to_irq(c->gpio_irq), omap2_onenand_interrupt, IRQF_TRIGGER_RISING, pdev->dev.driver->name, c)) < 0) goto err_release_gpio; } if (c->dma_channel >= 0) { r = omap_request_dma(0, pdev->dev.driver->name, omap2_onenand_dma_cb, (void *) c, &c->dma_channel); if (r == 0) { omap_set_dma_write_mode(c->dma_channel, OMAP_DMA_WRITE_NON_POSTED); omap_set_dma_src_data_pack(c->dma_channel, 1); omap_set_dma_src_burst_mode(c->dma_channel, OMAP_DMA_DATA_BURST_8); omap_set_dma_dest_data_pack(c->dma_channel, 1); omap_set_dma_dest_burst_mode(c->dma_channel, OMAP_DMA_DATA_BURST_8); } else { dev_info(&pdev->dev, "failed to allocate DMA for OneNAND, " "using PIO instead\n"); c->dma_channel = -1; } } dev_info(&pdev->dev, "initializing on CS%d, phys base 0x%08lx, virtual " "base %p, freq %d MHz\n", c->gpmc_cs, c->phys_base, c->onenand.base, c->freq); c->pdev = pdev; c->mtd.name = dev_name(&pdev->dev); c->mtd.priv = &c->onenand; c->mtd.owner = THIS_MODULE; c->mtd.dev.parent = &pdev->dev; this = &c->onenand; if (c->dma_channel >= 0) { this->wait = omap2_onenand_wait; if (c->flags & ONENAND_IN_OMAP34XX) { this->read_bufferram = omap3_onenand_read_bufferram; this->write_bufferram = omap3_onenand_write_bufferram; } else { this->read_bufferram = omap2_onenand_read_bufferram; this->write_bufferram = omap2_onenand_write_bufferram; } } if (pdata->regulator_can_sleep) { c->regulator = regulator_get(&pdev->dev, "vonenand"); if (IS_ERR(c->regulator)) { dev_err(&pdev->dev, "Failed to get regulator\n"); r = PTR_ERR(c->regulator); goto err_release_dma; } c->onenand.enable = omap2_onenand_enable; c->onenand.disable = omap2_onenand_disable; } if (pdata->skip_initial_unlocking) this->options |= ONENAND_SKIP_INITIAL_UNLOCKING; if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_regulator; ppdata.of_node = pdata->of_node; r = mtd_device_parse_register(&c->mtd, NULL, &ppdata, pdata ? pdata->parts : NULL, pdata ? pdata->nr_parts : 0); if (r) goto err_release_onenand; platform_set_drvdata(pdev, c); return 0; err_release_onenand: onenand_release(&c->mtd); err_release_regulator: regulator_put(c->regulator); err_release_dma: if (c->dma_channel != -1) omap_free_dma(c->dma_channel); if (c->gpio_irq) free_irq(gpio_to_irq(c->gpio_irq), c); err_release_gpio: if (c->gpio_irq) gpio_free(c->gpio_irq); err_iounmap: iounmap(c->onenand.base); err_release_mem_region: release_mem_region(c->phys_base, c->mem_size); err_kfree: kfree(c); return r; }
static int __devinit omap2_onenand_probe(struct platform_device *pdev) { struct omap_onenand_platform_data *pdata; struct omap2_onenand *c; int r; pdata = pdev->dev.platform_data; if (pdata == NULL) { dev_err(&pdev->dev, "platform data missing\n"); return -ENODEV; } c = kzalloc(sizeof(struct omap2_onenand), GFP_KERNEL); if (!c) return -ENOMEM; init_completion(&c->irq_done); init_completion(&c->dma_done); c->gpmc_cs = pdata->cs; c->gpio_irq = pdata->gpio_irq; c->dma_channel = pdata->dma_channel; if (c->dma_channel < 0) { c->gpio_irq = 0; } r = gpmc_cs_request(c->gpmc_cs, ONENAND_IO_SIZE, &c->phys_base); if (r < 0) { dev_err(&pdev->dev, "Cannot request GPMC CS\n"); goto err_kfree; } if (request_mem_region(c->phys_base, ONENAND_IO_SIZE, pdev->dev.driver->name) == NULL) { dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, " "size: 0x%x\n", c->phys_base, ONENAND_IO_SIZE); r = -EBUSY; goto err_free_cs; } c->onenand.base = ioremap(c->phys_base, ONENAND_IO_SIZE); if (c->onenand.base == NULL) { r = -ENOMEM; goto err_release_mem_region; } if (pdata->onenand_setup != NULL) { r = pdata->onenand_setup(c->onenand.base, c->freq); if (r < 0) { dev_err(&pdev->dev, "Onenand platform setup failed: " "%d\n", r); goto err_iounmap; } c->setup = pdata->onenand_setup; } if (c->gpio_irq) { if ((r = gpio_request(c->gpio_irq, "OneNAND irq")) < 0) { dev_err(&pdev->dev, "Failed to request GPIO%d for " "OneNAND\n", c->gpio_irq); goto err_iounmap; } gpio_direction_input(c->gpio_irq); if ((r = request_irq(gpio_to_irq(c->gpio_irq), omap2_onenand_interrupt, IRQF_TRIGGER_RISING, pdev->dev.driver->name, c)) < 0) goto err_release_gpio; } if (c->dma_channel >= 0) { r = omap_request_dma(0, pdev->dev.driver->name, omap2_onenand_dma_cb, (void *) c, &c->dma_channel); if (r == 0) { omap_set_dma_write_mode(c->dma_channel, OMAP_DMA_WRITE_NON_POSTED); omap_set_dma_src_data_pack(c->dma_channel, 1); omap_set_dma_src_burst_mode(c->dma_channel, OMAP_DMA_DATA_BURST_8); omap_set_dma_dest_data_pack(c->dma_channel, 1); omap_set_dma_dest_burst_mode(c->dma_channel, OMAP_DMA_DATA_BURST_8); } else { dev_info(&pdev->dev, "failed to allocate DMA for OneNAND, " "using PIO instead\n"); c->dma_channel = -1; } } dev_info(&pdev->dev, "initializing on CS%d, phys base 0x%08lx, virtual " "base %p\n", c->gpmc_cs, c->phys_base, c->onenand.base); c->pdev = pdev; c->mtd.name = dev_name(&pdev->dev); c->mtd.priv = &c->onenand; c->mtd.owner = THIS_MODULE; c->mtd.dev.parent = &pdev->dev; if (c->dma_channel >= 0) { struct onenand_chip *this = &c->onenand; this->wait = omap2_onenand_wait; if (cpu_is_omap34xx()) { this->read_bufferram = omap3_onenand_read_bufferram; this->write_bufferram = omap3_onenand_write_bufferram; } else { this->read_bufferram = omap2_onenand_read_bufferram; this->write_bufferram = omap2_onenand_write_bufferram; } } if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_dma; switch ((c->onenand.version_id >> 4) & 0xf) { case 0: c->freq = 40; break; case 1: c->freq = 54; break; case 2: c->freq = 66; break; case 3: c->freq = 83; break; } #ifdef CONFIG_MTD_PARTITIONS if (pdata->parts != NULL) r = add_mtd_partitions(&c->mtd, pdata->parts, pdata->nr_parts); else #endif r = add_mtd_device(&c->mtd); if (r < 0) goto err_release_onenand; platform_set_drvdata(pdev, c); return 0; err_release_onenand: onenand_release(&c->mtd); err_release_dma: if (c->dma_channel != -1) omap_free_dma(c->dma_channel); if (c->gpio_irq) free_irq(gpio_to_irq(c->gpio_irq), c); err_release_gpio: if (c->gpio_irq) gpio_free(c->gpio_irq); err_iounmap: iounmap(c->onenand.base); err_release_mem_region: release_mem_region(c->phys_base, ONENAND_IO_SIZE); err_free_cs: gpmc_cs_free(c->gpmc_cs); err_kfree: kfree(c); return r; }
static int __devinit omap_onenand_probe(struct platform_device *pdev) { struct omap_onenand_platform_data *pdata; struct omap_onenand *info; int r; pdata = pdev->dev.platform_data; if (pdata == NULL) { dev_err(&pdev->dev, "platform data missing\n"); return -ENODEV; } info = kzalloc(sizeof(struct omap_onenand), GFP_KERNEL); if (!info) return -ENOMEM; info->phys_base = OMAP_ONENAND_FLASH_START1; if (request_mem_region(info->phys_base, ONENAND_IO_SIZE, pdev->dev.driver->name) == NULL) { dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, size: 0x%x\n", info->phys_base, ONENAND_IO_SIZE); r = -EBUSY; goto err_kfree; } info->onenand.base = ioremap(info->phys_base, ONENAND_IO_SIZE); if (info->onenand.base == NULL) { r = -ENOMEM; goto err_release_mem_region; } if (pdata->onenand_setup != NULL) { r = pdata->onenand_setup(info->onenand.base); if (r < 0) { dev_err(&pdev->dev, "Onenand platform setup failed: %d\n", r); goto err_iounmap; } } dev_info(&pdev->dev, "initializing on CS%d, phys base 0x%08lx, virtual base %p\n", pdata->cs, info->phys_base, info->onenand.base); info->gpmc_cs = pdata->cs; info->pdev = pdev; info->mtd.name = pdev->dev.bus_id; info->mtd.priv = &info->onenand; info->mtd.owner = THIS_MODULE; if ((r = onenand_scan(&info->mtd, 1)) < 0) goto err_iounmap; #ifdef CONFIG_MTD_PARTITIONS r = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0); if (r > 0) r = add_mtd_partitions(&info->mtd, info->parts, r); else if (r < 0 && pdata->parts) r = add_mtd_partitions(&info->mtd, pdata->parts, pdata->nr_parts); else #endif r = add_mtd_device(&info->mtd); if ( r < 0) goto err_release_onenand; platform_set_drvdata(pdev, info); return 0; err_release_onenand: onenand_release(&info->mtd); err_iounmap: iounmap(info->onenand.base); err_release_mem_region: release_mem_region(info->phys_base, ONENAND_IO_SIZE); err_kfree: kfree(info); return r; }
static int __devinit generic_onenand_probe(struct platform_device *pdev) { struct onenand_info *info; struct onenand_platform_data *pdata = pdev->dev.platform_data; struct resource *res = pdev->resource; unsigned long size = resource_size(res); int err; info = kzalloc(sizeof(struct onenand_info), GFP_KERNEL); if (!info) return -ENOMEM; if (!request_mem_region(res->start, size, dev_name(&pdev->dev))) { err = -EBUSY; goto out_free_info; } info->onenand.base = ioremap(res->start, size); if (!info->onenand.base) { err = -ENOMEM; goto out_release_mem_region; } info->onenand.mmcontrol = pdata ? pdata->mmcontrol : 0; info->onenand.irq = platform_get_irq(pdev, 0); info->mtd.name = dev_name(&pdev->dev); info->mtd.priv = &info->onenand; info->mtd.owner = THIS_MODULE; #ifdef CONFIG_PXA3XX_BBM info->onenand.scan_bbt = pxa3xx_scan_bbt; info->onenand.block_bad = pxa3xx_block_bad; info->onenand.block_markbad = pxa3xx_block_markbad; info->onenand.options = ONENAND_RELOC_IFBAD; #endif if (onenand_scan(&info->mtd, 1)) { err = -ENXIO; goto out_iounmap; } #ifdef CONFIG_MTD_PARTITIONS err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0); if (err > 0) add_mtd_partitions(&info->mtd, info->parts, err); else if (err <= 0 && pdata && pdata->parts) add_mtd_partitions(&info->mtd, pdata->parts, pdata->nr_parts); else #endif err = add_mtd_device(&info->mtd); platform_set_drvdata(pdev, info); return 0; out_iounmap: iounmap(info->onenand.base); out_release_mem_region: release_mem_region(res->start, size); out_free_info: kfree(info); return err; }
int saveenv_onenand(void) { size_t total; int ret = 0, i; u32 erasebase; u32 eraselength; u32 eraseblock; u32 erasesize = onenand_info[0].erasesize; uint8_t *data; struct mtd_info *onenand; puts("Erasing Onenand...\n"); /* the following commands operate on the current device */ if (onenand_curr_device < 0 || onenand_curr_device >= CFG_MAX_ONENAND_DEVICE || !onenand_info[onenand_curr_device].name) { puts("\nno devices available\n"); return 1; } onenand = &onenand_info[onenand_curr_device]; /* If the value of CFG_ENV_OFFSET is not a NAND block boundary, the * NAND erase operation will fail. So first check if the CFG_ENV_OFFSET * is equal to a NAND block boundary */ if ((CFG_ENV_OFFSET % (erasesize - 1)) != 0 ) { /* CFG_ENV_OFFSET is not equal to block boundary address. So, read * the read the NAND block (in which ENV has to be stored), and * copy the ENV data into the copied block data. */ /* Step 1: Find out the starting address of the NAND block to * be erased. Also allocate memory whose size is equal to tbe * NAND block size (NAND erasesize). */ eraseblock = CFG_ENV_OFFSET / erasesize; erasebase = eraseblock * erasesize; printf("the baseaddr is 0x%08x ...\n", erasebase); data = (uint8_t*)malloc(erasesize); if (data == NULL) { printf("Could not save enviroment variables\n"); return 1; } /* Step 2: Read the NAND block into which the ENV data has * to be copied */ total = erasesize; printf("the total is 0x%08x ...\n", total); for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) { if (onenand_scan(&onenand_info[i], 1) == 0) { ret = onenand_read(onenand, erasebase, &total, data); } else { printf("no devices available\n"); return 1; } } if (ret || total != erasesize) { printf("Could not save enviroment variables %d\n",ret); return 1; } /* Step 3: Copy the ENV data into the local copy of the block * contents. */ memcpy((data + (CFG_ENV_OFFSET - erasebase)), (void*)env_ptr, CFG_ENV_SIZE); } else { /* CFG_ENV_OFFSET is equal to a NAND block boundary. So * no special care is required when erasing and writing NAND * block */ data = env_ptr; erasebase = CFG_ENV_OFFSET; erasesize = CFG_ENV_SIZE; } /* Erase the NAND block which will hold the ENV data */ if (onenand_erase(onenand, erasebase, erasesize)) return 1; puts("Writing to onenand... \n"); total = erasesize; /* Write the ENV data to the NAND block */ printf("the baseaddr is 0x%08x ...\n", erasebase); printf("the baseaddr is 0x%08x ...\n", total); ret = onenand_write(onenand, erasebase, &total, (u_char*)data); if (ret || total != erasesize) { printf("Could not save enviroment variables\n"); return 1; } if ((CFG_ENV_OFFSET % (erasesize - 1)) != 0 ) free(data); puts("Saved enviroment variables\n"); return ret; return 1; }