diff options
Diffstat (limited to 'drivers/mtd')
-rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0001.c | 43 | ||||
-rw-r--r-- | drivers/mtd/chips/jedec_probe.c | 35 | ||||
-rw-r--r-- | drivers/mtd/maps/amd76xrom.c | 1 | ||||
-rw-r--r-- | drivers/mtd/maps/physmap_of.c | 15 | ||||
-rw-r--r-- | drivers/mtd/maps/sun_uflash.c | 8 | ||||
-rw-r--r-- | drivers/mtd/mtd_blkdevs.c | 1 | ||||
-rw-r--r-- | drivers/mtd/nand/Kconfig | 19 | ||||
-rw-r--r-- | drivers/mtd/nand/fsl_upm.c | 9 | ||||
-rw-r--r-- | drivers/mtd/nand/mpc5121_nfc.c | 9 | ||||
-rw-r--r-- | drivers/mtd/nand/ndfc.c | 9 | ||||
-rw-r--r-- | drivers/mtd/nand/omap2.c | 369 | ||||
-rw-r--r-- | drivers/mtd/nand/pasemi_nand.c | 9 | ||||
-rw-r--r-- | drivers/mtd/nand/r852.c | 2 | ||||
-rw-r--r-- | drivers/mtd/nand/socrates_nand.c | 9 | ||||
-rw-r--r-- | drivers/mtd/onenand/Kconfig | 2 | ||||
-rw-r--r-- | drivers/mtd/onenand/generic.c | 2 | ||||
-rw-r--r-- | drivers/mtd/onenand/omap2.c | 38 | ||||
-rw-r--r-- | drivers/mtd/sm_ftl.c | 2 |
18 files changed, 368 insertions, 214 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index a8c3e1c9b02a..4aaa88f8ab5f 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -1230,10 +1230,32 @@ static int inval_cache_and_wait_for_operation( sleep_time = chip_op_time / 2; for (;;) { + if (chip->state != chip_state) { + /* Someone's suspended the operation: sleep */ + DECLARE_WAITQUEUE(wait, current); + set_current_state(TASK_UNINTERRUPTIBLE); + add_wait_queue(&chip->wq, &wait); + mutex_unlock(&chip->mutex); + schedule(); + remove_wait_queue(&chip->wq, &wait); + mutex_lock(&chip->mutex); + continue; + } + status = map_read(map, cmd_adr); if (map_word_andequal(map, status, status_OK, status_OK)) break; + if (chip->erase_suspended && chip_state == FL_ERASING) { + /* Erase suspend occured while sleep: reset timeout */ + timeo = reset_timeo; + chip->erase_suspended = 0; + } + if (chip->write_suspended && chip_state == FL_WRITING) { + /* Write suspend occured while sleep: reset timeout */ + timeo = reset_timeo; + chip->write_suspended = 0; + } if (!timeo) { map_write(map, CMD(0x70), cmd_adr); chip->state = FL_STATUS; @@ -1257,27 +1279,6 @@ static int inval_cache_and_wait_for_operation( timeo--; } mutex_lock(&chip->mutex); - - while (chip->state != chip_state) { - /* Someone's suspended the operation: sleep */ - DECLARE_WAITQUEUE(wait, current); - set_current_state(TASK_UNINTERRUPTIBLE); - add_wait_queue(&chip->wq, &wait); - mutex_unlock(&chip->mutex); - schedule(); - remove_wait_queue(&chip->wq, &wait); - mutex_lock(&chip->mutex); - } - if (chip->erase_suspended && chip_state == FL_ERASING) { - /* Erase suspend occured while sleep: reset timeout */ - timeo = reset_timeo; - chip->erase_suspended = 0; - } - if (chip->write_suspended && chip_state == FL_WRITING) { - /* Write suspend occured while sleep: reset timeout */ - timeo = reset_timeo; - chip->write_suspended = 0; - } } /* Done and happy. */ diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index d72a5fb2d041..4e1be51cc122 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -1935,14 +1935,14 @@ static void jedec_reset(u32 base, struct map_info *map, struct cfi_private *cfi) } -static int cfi_jedec_setup(struct cfi_private *p_cfi, int index) +static int cfi_jedec_setup(struct map_info *map, struct cfi_private *cfi, int index) { int i,num_erase_regions; uint8_t uaddr; - if (! (jedec_table[index].devtypes & p_cfi->device_type)) { + if (!(jedec_table[index].devtypes & cfi->device_type)) { DEBUG(MTD_DEBUG_LEVEL1, "Rejecting potential %s with incompatible %d-bit device type\n", - jedec_table[index].name, 4 * (1<<p_cfi->device_type)); + jedec_table[index].name, 4 * (1<<cfi->device_type)); return 0; } @@ -1950,27 +1950,28 @@ static int cfi_jedec_setup(struct cfi_private *p_cfi, int index) num_erase_regions = jedec_table[index].nr_regions; - p_cfi->cfiq = kmalloc(sizeof(struct cfi_ident) + num_erase_regions * 4, GFP_KERNEL); - if (!p_cfi->cfiq) { + cfi->cfiq = kmalloc(sizeof(struct cfi_ident) + num_erase_regions * 4, GFP_KERNEL); + if (!cfi->cfiq) { //xx printk(KERN_WARNING "%s: kmalloc failed for CFI ident structure\n", map->name); return 0; } - memset(p_cfi->cfiq,0,sizeof(struct cfi_ident)); + memset(cfi->cfiq, 0, sizeof(struct cfi_ident)); - p_cfi->cfiq->P_ID = jedec_table[index].cmd_set; - p_cfi->cfiq->NumEraseRegions = jedec_table[index].nr_regions; - p_cfi->cfiq->DevSize = jedec_table[index].dev_size; - p_cfi->cfi_mode = CFI_MODE_JEDEC; + cfi->cfiq->P_ID = jedec_table[index].cmd_set; + cfi->cfiq->NumEraseRegions = jedec_table[index].nr_regions; + cfi->cfiq->DevSize = jedec_table[index].dev_size; + cfi->cfi_mode = CFI_MODE_JEDEC; + cfi->sector_erase_cmd = CMD(0x30); for (i=0; i<num_erase_regions; i++){ - p_cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i]; + cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i]; } - p_cfi->cmdset_priv = NULL; + cfi->cmdset_priv = NULL; /* This may be redundant for some cases, but it doesn't hurt */ - p_cfi->mfr = jedec_table[index].mfr_id; - p_cfi->id = jedec_table[index].dev_id; + cfi->mfr = jedec_table[index].mfr_id; + cfi->id = jedec_table[index].dev_id; uaddr = jedec_table[index].uaddr; @@ -1978,8 +1979,8 @@ static int cfi_jedec_setup(struct cfi_private *p_cfi, int index) our brains explode when we see the datasheets talking about address lines numbered from A-1 to A18. The CFI table has unlock addresses in device-words according to the mode the device is connected in */ - p_cfi->addr_unlock1 = unlock_addrs[uaddr].addr1 / p_cfi->device_type; - p_cfi->addr_unlock2 = unlock_addrs[uaddr].addr2 / p_cfi->device_type; + cfi->addr_unlock1 = unlock_addrs[uaddr].addr1 / cfi->device_type; + cfi->addr_unlock2 = unlock_addrs[uaddr].addr2 / cfi->device_type; return 1; /* ok */ } @@ -2175,7 +2176,7 @@ static int jedec_probe_chip(struct map_info *map, __u32 base, "MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n", __func__, cfi->mfr, cfi->id, cfi->addr_unlock1, cfi->addr_unlock2 ); - if (!cfi_jedec_setup(cfi, i)) + if (!cfi_jedec_setup(map, cfi, i)) return 0; goto ok_out; } diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index 77d64ce19e9f..92de7e3a49a5 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -151,6 +151,7 @@ static int __devinit amd76xrom_init_one (struct pci_dev *pdev, printk(KERN_ERR MOD_NAME " %s(): Unable to register resource %pR - kernel bug?\n", __func__, &window->rsrc); + return -EBUSY; } diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index 8506578e6a35..3db0cb083d31 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -216,8 +216,7 @@ static void __devinit of_free_probes(const char **probes) } #endif -static int __devinit of_flash_probe(struct platform_device *dev, - const struct of_device_id *match) +static int __devinit of_flash_probe(struct platform_device *dev) { #ifdef CONFIG_MTD_PARTITIONS const char **part_probe_types; @@ -225,7 +224,7 @@ static int __devinit of_flash_probe(struct platform_device *dev, struct device_node *dp = dev->dev.of_node; struct resource res; struct of_flash *info; - const char *probe_type = match->data; + const char *probe_type; const __be32 *width; int err; int i; @@ -235,6 +234,10 @@ static int __devinit of_flash_probe(struct platform_device *dev, struct mtd_info **mtd_list = NULL; resource_size_t res_size; + if (!dev->dev.of_match) + return -EINVAL; + probe_type = dev->dev.of_match->data; + reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32); /* @@ -418,7 +421,7 @@ static struct of_device_id of_flash_match[] = { }; MODULE_DEVICE_TABLE(of, of_flash_match); -static struct of_platform_driver of_flash_driver = { +static struct platform_driver of_flash_driver = { .driver = { .name = "of-flash", .owner = THIS_MODULE, @@ -430,12 +433,12 @@ static struct of_platform_driver of_flash_driver = { static int __init of_flash_init(void) { - return of_register_platform_driver(&of_flash_driver); + return platform_driver_register(&of_flash_driver); } static void __exit of_flash_exit(void) { - of_unregister_platform_driver(&of_flash_driver); + platform_driver_unregister(&of_flash_driver); } module_init(of_flash_init); diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 3582ba1f9b09..3f1cb328a574 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -108,7 +108,7 @@ int uflash_devinit(struct platform_device *op, struct device_node *dp) return 0; } -static int __devinit uflash_probe(struct platform_device *op, const struct of_device_id *match) +static int __devinit uflash_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; @@ -148,7 +148,7 @@ static const struct of_device_id uflash_match[] = { MODULE_DEVICE_TABLE(of, uflash_match); -static struct of_platform_driver uflash_driver = { +static struct platform_driver uflash_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -160,12 +160,12 @@ static struct of_platform_driver uflash_driver = { static int __init uflash_init(void) { - return of_register_platform_driver(&uflash_driver); + return platform_driver_register(&uflash_driver); } static void __exit uflash_exit(void) { - of_unregister_platform_driver(&uflash_driver); + platform_driver_unregister(&uflash_driver); } module_init(uflash_init); diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index cb20c67995d8..e0a2373bf0e2 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -413,7 +413,6 @@ error3: error2: list_del(&new->list); error1: - kfree(new); return ret; } diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index c89592239bc7..4f6c06f16328 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -106,23 +106,6 @@ config MTD_NAND_OMAP2 help Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms. -config MTD_NAND_OMAP_PREFETCH - bool "GPMC prefetch support for NAND Flash device" - depends on MTD_NAND_OMAP2 - default y - help - The NAND device can be accessed for Read/Write using GPMC PREFETCH engine - to improve the performance. - -config MTD_NAND_OMAP_PREFETCH_DMA - depends on MTD_NAND_OMAP_PREFETCH - bool "DMA mode" - default n - help - The GPMC PREFETCH engine can be configured eigther in MPU interrupt mode - or in DMA interrupt mode. - Say y for DMA mode or MPU mode will be used - config MTD_NAND_IDS tristate @@ -476,7 +459,7 @@ config MTD_NAND_MPC5121_NFC config MTD_NAND_MXC tristate "MXC NAND support" - depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX51 + depends on IMX_HAVE_PLATFORM_MXC_NAND help This enables the driver for the NAND flash controller on the MXC processors. diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index efdcca94ce55..073ee026a17c 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -217,8 +217,7 @@ err: return ret; } -static int __devinit fun_probe(struct platform_device *ofdev, - const struct of_device_id *ofid) +static int __devinit fun_probe(struct platform_device *ofdev) { struct fsl_upm_nand *fun; struct resource io_res; @@ -360,7 +359,7 @@ static const struct of_device_id of_fun_match[] = { }; MODULE_DEVICE_TABLE(of, of_fun_match); -static struct of_platform_driver of_fun_driver = { +static struct platform_driver of_fun_driver = { .driver = { .name = "fsl,upm-nand", .owner = THIS_MODULE, @@ -372,13 +371,13 @@ static struct of_platform_driver of_fun_driver = { static int __init fun_module_init(void) { - return of_register_platform_driver(&of_fun_driver); + return platform_driver_register(&of_fun_driver); } module_init(fun_module_init); static void __exit fun_module_exit(void) { - of_unregister_platform_driver(&of_fun_driver); + platform_driver_unregister(&of_fun_driver); } module_exit(fun_module_exit); diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 469e649c911c..c2f95437e5e9 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -650,8 +650,7 @@ static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd) iounmap(prv->csreg); } -static int __devinit mpc5121_nfc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit mpc5121_nfc_probe(struct platform_device *op) { struct device_node *rootnode, *dn = op->dev.of_node; struct device *dev = &op->dev; @@ -891,7 +890,7 @@ static struct of_device_id mpc5121_nfc_match[] __devinitdata = { {}, }; -static struct of_platform_driver mpc5121_nfc_driver = { +static struct platform_driver mpc5121_nfc_driver = { .probe = mpc5121_nfc_probe, .remove = __devexit_p(mpc5121_nfc_remove), .driver = { @@ -903,14 +902,14 @@ static struct of_platform_driver mpc5121_nfc_driver = { static int __init mpc5121_nfc_init(void) { - return of_register_platform_driver(&mpc5121_nfc_driver); + return platform_driver_register(&mpc5121_nfc_driver); } module_init(mpc5121_nfc_init); static void __exit mpc5121_nfc_cleanup(void) { - of_unregister_platform_driver(&mpc5121_nfc_driver); + platform_driver_unregister(&mpc5121_nfc_driver); } module_exit(mpc5121_nfc_cleanup); diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index c9ae0a5023b6..bbe6d451290d 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -225,8 +225,7 @@ err: return ret; } -static int __devinit ndfc_probe(struct platform_device *ofdev, - const struct of_device_id *match) +static int __devinit ndfc_probe(struct platform_device *ofdev) { struct ndfc_controller *ndfc = &ndfc_ctrl; const __be32 *reg; @@ -292,7 +291,7 @@ static const struct of_device_id ndfc_match[] = { }; MODULE_DEVICE_TABLE(of, ndfc_match); -static struct of_platform_driver ndfc_driver = { +static struct platform_driver ndfc_driver = { .driver = { .name = "ndfc", .owner = THIS_MODULE, @@ -304,12 +303,12 @@ static struct of_platform_driver ndfc_driver = { static int __init ndfc_nand_init(void) { - return of_register_platform_driver(&ndfc_driver); + return platform_driver_register(&ndfc_driver); } static void __exit ndfc_nand_exit(void) { - of_unregister_platform_driver(&ndfc_driver); + platform_driver_unregister(&ndfc_driver); } module_init(ndfc_nand_init); diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 15682ec8530e..7b8f1fffc528 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -11,6 +11,7 @@ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/delay.h> +#include <linux/interrupt.h> #include <linux/jiffies.h> #include <linux/sched.h> #include <linux/mtd/mtd.h> @@ -24,6 +25,7 @@ #include <plat/nand.h> #define DRIVER_NAME "omap2-nand" +#define OMAP_NAND_TIMEOUT_MS 5000 #define NAND_Ecc_P1e (1 << 0) #define NAND_Ecc_P2e (1 << 1) @@ -96,26 +98,19 @@ static const char *part_probes[] = { "cmdlinepart", NULL }; #endif -#ifdef CONFIG_MTD_NAND_OMAP_PREFETCH -static int use_prefetch = 1; - -/* "modprobe ... use_prefetch=0" etc */ -module_param(use_prefetch, bool, 0); -MODULE_PARM_DESC(use_prefetch, "enable/disable use of PREFETCH"); - -#ifdef CONFIG_MTD_NAND_OMAP_PREFETCH_DMA -static int use_dma = 1; +/* oob info generated runtime depending on ecc algorithm and layout selected */ +static struct nand_ecclayout omap_oobinfo; +/* Define some generic bad / good block scan pattern which are used + * while scanning a device for factory marked good / bad blocks + */ +static uint8_t scan_ff_pattern[] = { 0xff }; +static struct nand_bbt_descr bb_descrip_flashbased = { + .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES, + .offs = 0, + .len = 1, + .pattern = scan_ff_pattern, +}; -/* "modprobe ... use_dma=0" etc */ -module_param(use_dma, bool, 0); -MODULE_PARM_DESC(use_dma, "enable/disable use of DMA"); -#else -static const int use_dma; -#endif -#else -const int use_prefetch; -static const int use_dma; -#endif struct omap_nand_info { struct nand_hw_control controller; @@ -129,6 +124,13 @@ struct omap_nand_info { unsigned long phys_base; struct completion comp; int dma_ch; + int gpmc_irq; + enum { + OMAP_NAND_IO_READ = 0, /* read */ + OMAP_NAND_IO_WRITE, /* write */ + } iomode; + u_char *buf; + int buf_len; }; /** @@ -256,7 +258,8 @@ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len) } /* configure and start prefetch transfer */ - ret = gpmc_prefetch_enable(info->gpmc_cs, 0x0, len, 0x0); + ret = gpmc_prefetch_enable(info->gpmc_cs, + PREFETCH_FIFOTHRESHOLD_MAX, 0x0, len, 0x0); if (ret) { /* PFPW engine is busy, use cpu copy method */ if (info->nand.options & NAND_BUSWIDTH_16) @@ -288,9 +291,10 @@ static void omap_write_buf_pref(struct mtd_info *mtd, { struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); - uint32_t pref_count = 0, w_count = 0; + uint32_t w_count = 0; int i = 0, ret = 0; u16 *p; + unsigned long tim, limit; /* take care of subpage writes */ if (len % 2 != 0) { @@ -300,7 +304,8 @@ static void omap_write_buf_pref(struct mtd_info *mtd, } /* configure and start prefetch transfer */ - ret = gpmc_prefetch_enable(info->gpmc_cs, 0x0, len, 0x1); + ret = gpmc_prefetch_enable(info->gpmc_cs, + PREFETCH_FIFOTHRESHOLD_MAX, 0x0, len, 0x1); if (ret) { /* PFPW engine is busy, use cpu copy method */ if (info->nand.options & NAND_BUSWIDTH_16) @@ -316,15 +321,17 @@ static void omap_write_buf_pref(struct mtd_info *mtd, iowrite16(*p++, info->nand.IO_ADDR_W); } /* wait for data to flushed-out before reset the prefetch */ - do { - pref_count = gpmc_read_status(GPMC_PREFETCH_COUNT); - } while (pref_count); + tim = 0; + limit = (loops_per_jiffy * + msecs_to_jiffies(OMAP_NAND_TIMEOUT_MS)); + while (gpmc_read_status(GPMC_PREFETCH_COUNT) && (tim++ < limit)) + cpu_relax(); + /* disable and stop the PFPW engine */ gpmc_prefetch_reset(info->gpmc_cs); } } -#ifdef CONFIG_MTD_NAND_OMAP_PREFETCH_DMA /* * omap_nand_dma_cb: callback on the completion of dma transfer * @lch: logical channel @@ -348,14 +355,15 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr, { struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); - uint32_t prefetch_status = 0; enum dma_data_direction dir = is_write ? DMA_TO_DEVICE : DMA_FROM_DEVICE; dma_addr_t dma_addr; int ret; + unsigned long tim, limit; - /* The fifo depth is 64 bytes. We have a sync at each frame and frame - * length is 64 bytes. + /* The fifo depth is 64 bytes max. + * But configure the FIFO-threahold to 32 to get a sync at each frame + * and frame length is 32 bytes. */ int buf_len = len >> 6; @@ -396,9 +404,10 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr, OMAP24XX_DMA_GPMC, OMAP_DMA_SRC_SYNC); } /* configure and start prefetch transfer */ - ret = gpmc_prefetch_enable(info->gpmc_cs, 0x1, len, is_write); + ret = gpmc_prefetch_enable(info->gpmc_cs, + PREFETCH_FIFOTHRESHOLD_MAX, 0x1, len, is_write); if (ret) - /* PFPW engine is busy, use cpu copy methode */ + /* PFPW engine is busy, use cpu copy method */ goto out_copy; init_completion(&info->comp); @@ -407,10 +416,11 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr, /* setup and start DMA using dma_addr */ wait_for_completion(&info->comp); + tim = 0; + limit = (loops_per_jiffy * msecs_to_jiffies(OMAP_NAND_TIMEOUT_MS)); + while (gpmc_read_status(GPMC_PREFETCH_COUNT) && (tim++ < limit)) + cpu_relax(); - do { - prefetch_status = gpmc_read_status(GPMC_PREFETCH_COUNT); - } while (prefetch_status); /* disable and stop the PFPW engine */ gpmc_prefetch_reset(info->gpmc_cs); @@ -426,14 +436,6 @@ out_copy: : omap_write_buf8(mtd, (u_char *) addr, len); return 0; } -#else -static void omap_nand_dma_cb(int lch, u16 ch_status, void *data) {} -static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr, - unsigned int len, int is_write) -{ - return 0; -} -#endif /** * omap_read_buf_dma_pref - read data from NAND controller into buffer @@ -466,6 +468,157 @@ static void omap_write_buf_dma_pref(struct mtd_info *mtd, omap_nand_dma_transfer(mtd, (u_char *) buf, len, 0x1); } +/* + * omap_nand_irq - GMPC irq handler + * @this_irq: gpmc irq number + * @dev: omap_nand_info structure pointer is passed here + */ +static irqreturn_t omap_nand_irq(int this_irq, void *dev) +{ + struct omap_nand_info *info = (struct omap_nand_info *) dev; + u32 bytes; + u32 irq_stat; + + irq_stat = gpmc_read_status(GPMC_GET_IRQ_STATUS); + bytes = gpmc_read_status(GPMC_PREFETCH_FIFO_CNT); + bytes = bytes & 0xFFFC; /* io in multiple of 4 bytes */ + if (info->iomode == OMAP_NAND_IO_WRITE) { /* checks for write io */ + if (irq_stat & 0x2) + goto done; + + if (info->buf_len && (info->buf_len < bytes)) + bytes = info->buf_len; + else if (!info->buf_len) + bytes = 0; + iowrite32_rep(info->nand.IO_ADDR_W, + (u32 *)info->buf, bytes >> 2); + info->buf = info->buf + bytes; + info->buf_len -= bytes; + + } else { + ioread32_rep(info->nand.IO_ADDR_R, + (u32 *)info->buf, bytes >> 2); + info->buf = info->buf + bytes; + + if (irq_stat & 0x2) + goto done; + } + gpmc_cs_configure(info->gpmc_cs, GPMC_SET_IRQ_STATUS, irq_stat); + + return IRQ_HANDLED; + +done: + complete(&info->comp); + /* disable irq */ + gpmc_cs_configure(info->gpmc_cs, GPMC_ENABLE_IRQ, 0); + + /* clear status */ + gpmc_cs_configure(info->gpmc_cs, GPMC_SET_IRQ_STATUS, irq_stat); + + return IRQ_HANDLED; +} + +/* + * omap_read_buf_irq_pref - read data from NAND controller into buffer + * @mtd: MTD device structure + * @buf: buffer to store date + * @len: number of bytes to read + */ +static void omap_read_buf_irq_pref(struct mtd_info *mtd, u_char *buf, int len) +{ + struct omap_nand_info *info = container_of(mtd, + struct omap_nand_info, mtd); + int ret = 0; + + if (len <= mtd->oobsize) { + omap_read_buf_pref(mtd, buf, len); + return; + } + + info->iomode = OMAP_NAND_IO_READ; + info->buf = buf; + init_completion(&info->comp); + + /* configure and start prefetch transfer */ + ret = gpmc_prefetch_enable(info->gpmc_cs, + PREFETCH_FIFOTHRESHOLD_MAX/2, 0x0, len, 0x0); + if (ret) + /* PFPW engine is busy, use cpu copy method */ + goto out_copy; + + info->buf_len = len; + /* enable irq */ + gpmc_cs_configure(info->gpmc_cs, GPMC_ENABLE_IRQ, + (GPMC_IRQ_FIFOEVENTENABLE | GPMC_IRQ_COUNT_EVENT)); + + /* waiting for read to complete */ + wait_for_completion(&info->comp); + + /* disable and stop the PFPW engine */ + gpmc_prefetch_reset(info->gpmc_cs); + return; + +out_copy: + if (info->nand.options & NAND_BUSWIDTH_16) + omap_read_buf16(mtd, buf, len); + else + omap_read_buf8(mtd, buf, len); +} + +/* + * omap_write_buf_irq_pref - write buffer to NAND controller + * @mtd: MTD device structure + * @buf: data buffer + * @len: number of bytes to write + */ +static void omap_write_buf_irq_pref(struct mtd_info *mtd, + const u_char *buf, int len) +{ + struct omap_nand_info *info = container_of(mtd, + struct omap_nand_info, mtd); + int ret = 0; + unsigned long tim, limit; + + if (len <= mtd->oobsize) { + omap_write_buf_pref(mtd, buf, len); + return; + } + + info->iomode = OMAP_NAND_IO_WRITE; + info->buf = (u_char *) buf; + init_completion(&info->comp); + + /* configure and start prefetch transfer : size=24 */ + ret = gpmc_prefetch_enable(info->gpmc_cs, + (PREFETCH_FIFOTHRESHOLD_MAX * 3) / 8, 0x0, len, 0x1); + if (ret) + /* PFPW engine is busy, use cpu copy method */ + goto out_copy; + + info->buf_len = len; + /* enable irq */ + gpmc_cs_configure(info->gpmc_cs, GPMC_ENABLE_IRQ, + (GPMC_IRQ_FIFOEVENTENABLE | GPMC_IRQ_COUNT_EVENT)); + + /* waiting for write to complete */ + wait_for_completion(&info->comp); + /* wait for data to flushed-out before reset the prefetch */ + tim = 0; + limit = (loops_per_jiffy * msecs_to_jiffies(OMAP_NAND_TIMEOUT_MS)); + while (gpmc_read_status(GPMC_PREFETCH_COUNT) && (tim++ < limit)) + cpu_relax(); + + /* disable and stop the PFPW engine */ + gpmc_prefetch_reset(info->gpmc_cs); + return; + +out_copy: + if (info->nand.options & NAND_BUSWIDTH_16) + omap_write_buf16(mtd, buf, len); + else + omap_write_buf8(mtd, buf, len); +} + /** * omap_verify_buf - Verify chip data against buffer * @mtd: MTD device structure @@ -487,8 +640,6 @@ static int omap_verify_buf(struct mtd_info *mtd, const u_char * buf, int len) return 0; } -#ifdef CONFIG_MTD_NAND_OMAP_HWECC - /** * gen_true_ecc - This function will generate true ECC value * @ecc_buf: buffer to store ecc code @@ -708,8 +859,6 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int mode) gpmc_enable_hwecc(info->gpmc_cs, mode, dev_width, info->nand.ecc.size); } -#endif - /** * omap_wait - wait until the command is done * @mtd: MTD device structure @@ -779,6 +928,7 @@ static int __devinit omap_nand_probe(struct platform_device *pdev) struct omap_nand_info *info; struct omap_nand_platform_data *pdata; int err; + int i, offset; pdata = pdev->dev.platform_data; if (pdata == NULL) { @@ -804,7 +954,7 @@ static int __devinit omap_nand_probe(struct platform_device *pdev) info->mtd.name = dev_name(&pdev->dev); info->mtd.owner = THIS_MODULE; - info->nand.options |= pdata->devsize ? NAND_BUSWIDTH_16 : 0; + info->nand.options = pdata->devsize; info->nand.options |= NAND_SKIP_BBTSCAN; /* NAND write protect off */ @@ -842,28 +992,13 @@ static int __devinit omap_nand_probe(struct platform_device *pdev) info->nand.chip_delay = 50; } - if (use_prefetch) { - + switch (pdata->xfer_type) { + case NAND_OMAP_PREFETCH_POLLED: info->nand.read_buf = omap_read_buf_pref; info->nand.write_buf = omap_write_buf_pref; - if (use_dma) { - err = omap_request_dma(OMAP24XX_DMA_GPMC, "NAND", - omap_nand_dma_cb, &info->comp, &info->dma_ch); - if (err < 0) { - info->dma_ch = -1; - printk(KERN_WARNING "DMA request failed." - " Non-dma data transfer mode\n"); - } else { - omap_set_dma_dest_burst_mode(info->dma_ch, - OMAP_DMA_DATA_BURST_16); - omap_set_dma_src_burst_mode(info->dma_ch, - OMAP_DMA_DATA_BURST_16); - - info->nand.read_buf = omap_read_buf_dma_pref; - info->nand.write_buf = omap_write_buf_dma_pref; - } - } - } else { + break; + + case NAND_OMAP_POLLED: if (info->nand.options & NAND_BUSWIDTH_16) { info->nand.read_buf = omap_read_buf16; info->nand.write_buf = omap_write_buf16; @@ -871,20 +1006,61 @@ static int __devinit omap_nand_probe(struct platform_device *pdev) info->nand.read_buf = omap_read_buf8; info->nand.write_buf = omap_write_buf8; } + break; + + case NAND_OMAP_PREFETCH_DMA: + err = omap_request_dma(OMAP24XX_DMA_GPMC, "NAND", + omap_nand_dma_cb, &info->comp, &info->dma_ch); + if (err < 0) { + info->dma_ch = -1; + dev_err(&pdev->dev, "DMA request failed!\n"); + goto out_release_mem_region; + } else { + omap_set_dma_dest_burst_mode(info->dma_ch, + OMAP_DMA_DATA_BURST_16); + omap_set_dma_src_burst_mode(info->dma_ch, + OMAP_DMA_DATA_BURST_16); + + info->nand.read_buf = omap_read_buf_dma_pref; + info->nand.write_buf = omap_write_buf_dma_pref; + } + break; + + case NAND_OMAP_PREFETCH_IRQ: + err = request_irq(pdata->gpmc_irq, + omap_nand_irq, IRQF_SHARED, "gpmc-nand", info); + if (err) { + dev_err(&pdev->dev, "requesting irq(%d) error:%d", + pdata->gpmc_irq, err); + goto out_release_mem_region; + } else { + info->gpmc_irq = pdata->gpmc_irq; + info->nand.read_buf = omap_read_buf_irq_pref; + info->nand.write_buf = omap_write_buf_irq_pref; + } + break; + + default: + dev_err(&pdev->dev, + "xfer_type(%d) not supported!\n", pdata->xfer_type); + err = -EINVAL; + goto out_release_mem_region; } - info->nand.verify_buf = omap_verify_buf; -#ifdef CONFIG_MTD_NAND_OMAP_HWECC - info->nand.ecc.bytes = 3; - info->nand.ecc.size = 512; - info->nand.ecc.calculate = omap_calculate_ecc; - info->nand.ecc.hwctl = omap_enable_hwecc; - info->nand.ecc.correct = omap_correct_data; - info->nand.ecc.mode = NAND_ECC_HW; + info->nand.verify_buf = omap_verify_buf; -#else - info->nand.ecc.mode = NAND_ECC_SOFT; -#endif + /* selsect the ecc type */ + if (pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_DEFAULT) + info->nand.ecc.mode = NAND_ECC_SOFT; + else if ((pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_HW) || + (pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_HW_ROMCODE)) { + info->nand.ecc.bytes = 3; + info->nand.ecc.size = 512; + info->nand.ecc.calculate = omap_calculate_ecc; + info->nand.ecc.hwctl = omap_enable_hwecc; + info->nand.ecc.correct = omap_correct_data; + info->nand.ecc.mode = NAND_ECC_HW; + } /* DIP switches on some boards change between 8 and 16 bit * bus widths for flash. Try the other width if the first try fails. @@ -897,6 +1073,26 @@ static int __devinit omap_nand_probe(struct platform_device *pdev) } } + /* rom code layout */ + if (pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_HW_ROMCODE) { + + if (info->nand.options & NAND_BUSWIDTH_16) + offset = 2; + else { + offset = 1; + info->nand.badblock_pattern = &bb_descrip_flashbased; + } + omap_oobinfo.eccbytes = 3 * (info->mtd.oobsize/16); + for (i = 0; i < omap_oobinfo.eccbytes; i++) + omap_oobinfo.eccpos[i] = i+offset; + + omap_oobinfo.oobfree->offset = offset + omap_oobinfo.eccbytes; + omap_oobinfo.oobfree->length = info->mtd.oobsize - + (offset + omap_oobinfo.eccbytes); + + info->nand.ecc.layout = &omap_oobinfo; + } + #ifdef CONFIG_MTD_PARTITIONS err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0); if (err > 0) @@ -926,9 +1122,12 @@ static int omap_nand_remove(struct platform_device *pdev) mtd); platform_set_drvdata(pdev, NULL); - if (use_dma) + if (info->dma_ch != -1) omap_free_dma(info->dma_ch); + if (info->gpmc_irq) + free_irq(info->gpmc_irq, info); + /* Release NAND device, its internal structures and partitions */ nand_release(&info->mtd); iounmap(info->nand.IO_ADDR_R); @@ -947,16 +1146,8 @@ static struct platform_driver omap_nand_driver = { static int __init omap_nand_init(void) { - printk(KERN_INFO "%s driver initializing\n", DRIVER_NAME); + pr_info("%s driver initializing\n", DRIVER_NAME); - /* This check is required if driver is being - * loaded run time as a module - */ - if ((1 == use_dma) && (0 == use_prefetch)) { - printk(KERN_INFO"Wrong parameters: 'use_dma' can not be 1 " - "without use_prefetch'. Prefetch will not be" - " used in either mode (mpu or dma)\n"); - } return platform_driver_register(&omap_nand_driver); } @@ -968,6 +1159,6 @@ static void __exit omap_nand_exit(void) module_init(omap_nand_init); module_exit(omap_nand_exit); -MODULE_ALIAS(DRIVER_NAME); +MODULE_ALIAS("platform:" DRIVER_NAME); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Glue layer for NAND flash on TI OMAP boards"); diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index bb277a54986f..59efa829ef24 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -89,8 +89,7 @@ int pasemi_device_ready(struct mtd_info *mtd) return !!(inl(lpcctl) & LBICTRL_LPCCTL_NR); } -static int __devinit pasemi_nand_probe(struct platform_device *ofdev, - const struct of_device_id *match) +static int __devinit pasemi_nand_probe(struct platform_device *ofdev) { struct pci_dev *pdev; struct device_node *np = ofdev->dev.of_node; @@ -219,7 +218,7 @@ static const struct of_device_id pasemi_nand_match[] = MODULE_DEVICE_TABLE(of, pasemi_nand_match); -static struct of_platform_driver pasemi_nand_driver = +static struct platform_driver pasemi_nand_driver = { .driver = { .name = (char*)driver_name, @@ -232,13 +231,13 @@ static struct of_platform_driver pasemi_nand_driver = static int __init pasemi_nand_init(void) { - return of_register_platform_driver(&pasemi_nand_driver); + return platform_driver_register(&pasemi_nand_driver); } module_init(pasemi_nand_init); static void __exit pasemi_nand_exit(void) { - of_unregister_platform_driver(&pasemi_nand_driver); + platform_driver_unregister(&pasemi_nand_driver); } module_exit(pasemi_nand_exit); diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index d9d7efbc77cc..6322d1fb5d62 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -930,7 +930,7 @@ int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) init_completion(&dev->dma_done); - dev->card_workqueue = create_freezeable_workqueue(DRV_NAME); + dev->card_workqueue = create_freezable_workqueue(DRV_NAME); if (!dev->card_workqueue) goto error9; diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index a8e403eebedb..a853548986f0 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -162,8 +162,7 @@ static const char *part_probes[] = { "cmdlinepart", NULL }; /* * Probe for the NAND device. */ -static int __devinit socrates_nand_probe(struct platform_device *ofdev, - const struct of_device_id *ofid) +static int __devinit socrates_nand_probe(struct platform_device *ofdev) { struct socrates_nand_host *host; struct mtd_info *mtd; @@ -300,7 +299,7 @@ static const struct of_device_id socrates_nand_match[] = MODULE_DEVICE_TABLE(of, socrates_nand_match); -static struct of_platform_driver socrates_nand_driver = { +static struct platform_driver socrates_nand_driver = { .driver = { .name = "socrates_nand", .owner = THIS_MODULE, @@ -312,12 +311,12 @@ static struct of_platform_driver socrates_nand_driver = { static int __init socrates_nand_init(void) { - return of_register_platform_driver(&socrates_nand_driver); + return platform_driver_register(&socrates_nand_driver); } static void __exit socrates_nand_exit(void) { - of_unregister_platform_driver(&socrates_nand_driver); + platform_driver_unregister(&socrates_nand_driver); } module_init(socrates_nand_init); diff --git a/drivers/mtd/onenand/Kconfig b/drivers/mtd/onenand/Kconfig index 4dbd0f58eebf..4f426195f8db 100644 --- a/drivers/mtd/onenand/Kconfig +++ b/drivers/mtd/onenand/Kconfig @@ -32,7 +32,7 @@ config MTD_ONENAND_OMAP2 config MTD_ONENAND_SAMSUNG tristate "OneNAND on Samsung SOC controller support" - depends on ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_S5PV310 + depends on ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS4 help Support for a OneNAND flash device connected to an Samsung SOC. S3C64XX/S5PC100 use command mapping method. diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index e78914938c5c..ac08750748a3 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -131,7 +131,7 @@ static struct platform_driver generic_onenand_driver = { .remove = __devexit_p(generic_onenand_remove), }; -MODULE_ALIAS(DRIVER_NAME); +MODULE_ALIAS("platform:" DRIVER_NAME); static int __init generic_onenand_init(void) { diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index ac31f461cc1c..14a49abe057e 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -63,7 +63,7 @@ struct omap2_onenand { struct completion dma_done; int dma_channel; int freq; - int (*setup)(void __iomem *base, int freq); + int (*setup)(void __iomem *base, int *freq_ptr); struct regulator *regulator; }; @@ -148,11 +148,9 @@ static int omap2_onenand_wait(struct mtd_info *mtd, int state) wait_err("controller error", state, ctrl, intr); return -EIO; } - if ((intr & intr_flags) != intr_flags) { - wait_err("timeout", state, ctrl, intr); - return -EIO; - } - return 0; + if ((intr & intr_flags) == intr_flags) + return 0; + /* Continue in wait for interrupt branch */ } if (state != FL_READING) { @@ -581,7 +579,7 @@ static int __adjust_timing(struct device *dev, void *data) /* DMA is not in use so this is all that is needed */ /* Revisit for OMAP3! */ - ret = c->setup(c->onenand.base, c->freq); + ret = c->setup(c->onenand.base, &c->freq); return ret; } @@ -673,7 +671,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) } if (pdata->onenand_setup != NULL) { - r = pdata->onenand_setup(c->onenand.base, c->freq); + r = pdata->onenand_setup(c->onenand.base, &c->freq); if (r < 0) { dev_err(&pdev->dev, "Onenand platform setup failed: " "%d\n", r); @@ -718,8 +716,8 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) } 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); + "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); @@ -754,24 +752,6 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_regulator; - 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; - case 4: - c->freq = 104; - break; - } - #ifdef CONFIG_MTD_PARTITIONS r = parse_mtd_partitions(&c->mtd, part_probes, &c->parts, 0); if (r > 0) @@ -860,7 +840,7 @@ static void __exit omap2_onenand_exit(void) module_init(omap2_onenand_init); module_exit(omap2_onenand_exit); -MODULE_ALIAS(DRIVER_NAME); +MODULE_ALIAS("platform:" DRIVER_NAME); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jarkko Lavinen <jarkko.lavinen@nokia.com>"); MODULE_DESCRIPTION("Glue layer for OneNAND flash on OMAP2 / OMAP3"); diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index 67822cf6c025..ac0d6a8613b5 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -1258,7 +1258,7 @@ static struct mtd_blktrans_ops sm_ftl_ops = { static __init int sm_module_init(void) { int error = 0; - cache_flush_workqueue = create_freezeable_workqueue("smflush"); + cache_flush_workqueue = create_freezable_workqueue("smflush"); if (IS_ERR(cache_flush_workqueue)) return PTR_ERR(cache_flush_workqueue); |