diff options
Diffstat (limited to 'target/linux/atheros/files/drivers/mtd/devices/spiflash.c')
| -rw-r--r-- | target/linux/atheros/files/drivers/mtd/devices/spiflash.c | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/target/linux/atheros/files/drivers/mtd/devices/spiflash.c b/target/linux/atheros/files/drivers/mtd/devices/spiflash.c index 7bfc252efe..c4c2016d8b 100644 --- a/target/linux/atheros/files/drivers/mtd/devices/spiflash.c +++ b/target/linux/atheros/files/drivers/mtd/devices/spiflash.c @@ -69,7 +69,7 @@ spin_lock_bh(&spidata->mutex); \ } \ } while (0) - + static __u32 spiflash_regread32(int reg); static void spiflash_regwrite32(int reg, __u32 data); @@ -132,7 +132,7 @@ struct opcodes { /* Driver private data structure */ struct spiflash_data { - struct mtd_info *mtd; + struct mtd_info *mtd; struct mtd_partition *parsed_parts; /* parsed partitions */ void *readaddr; /* memory mapped data for read */ void *mmraddr; /* memory mapped register space */ @@ -161,7 +161,7 @@ spiflash_regread32(int reg) return (*data); } -static void +static void spiflash_regwrite32(int reg, __u32 data) { volatile __u32 *addr = (__u32 *)(spidata->mmraddr + reg); @@ -171,7 +171,7 @@ spiflash_regwrite32(int reg, __u32 data) } -static __u32 +static __u32 spiflash_sendcmd (int op, u32 addr) { u32 reg; @@ -187,7 +187,7 @@ spiflash_sendcmd (int op, u32 addr) spiflash_regwrite32(SPI_FLASH_CTL, reg); busy_wait(spiflash_regread32(SPI_FLASH_CTL) & SPI_CTL_BUSY, 0); - + if (!ptr_opcode->rx_cnt) return 0; @@ -218,12 +218,12 @@ spiflash_sendcmd (int op, u32 addr) * Function returns 0 for failure. * and flashconfig_tbl array index for success. */ -static int +static int spiflash_probe_chip (void) { __u32 sig; int flash_size; - + /* Read the signature on the flash device */ spin_lock_bh(&spidata->mutex); sig = spiflash_sendcmd(SPI_RD_SIG, 0); @@ -267,7 +267,7 @@ retry: spin_unlock_bh(&spidata->mutex); schedule(); remove_wait_queue(&spidata->wq, &wait); - + if(signal_pending(current)) return 0; @@ -285,7 +285,7 @@ static inline void spiflash_done(void) wake_up(&spidata->wq); } -static int +static int spiflash_erase (struct mtd_info *mtd,struct erase_info *instr) { struct opcodes *ptr_opcode; @@ -312,7 +312,7 @@ spiflash_erase (struct mtd_info *mtd,struct erase_info *instr) spin_unlock_bh(&spidata->mutex); msleep(800); spin_lock_bh(&spidata->mutex); - + busy_wait(spiflash_sendcmd(SPI_RD_STATUS, 0) & SPI_STATUS_WIP, 20); spiflash_done(); @@ -322,15 +322,15 @@ spiflash_erase (struct mtd_info *mtd,struct erase_info *instr) return 0; } -static int +static int spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf) { u8 *read_addr; - + /* sanity checks */ if (!len) return (0); if (from + len > mtd->size) return (-EINVAL); - + /* we always read len bytes */ *retlen = len; @@ -343,7 +343,7 @@ spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_cha return 0; } -static int +static int spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf) { u32 opcode, bytes_left; @@ -353,10 +353,10 @@ spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u /* sanity checks */ if (!len) return (0); if (to + len > mtd->size) return (-EINVAL); - + opcode = stm_opcodes[SPI_PAGE_PROGRAM].code; bytes_left = len; - + do { u32 xact_len, reg, page_offset, spi_data = 0; @@ -389,7 +389,7 @@ spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u spi_data = (buf[2] << 16) | (buf[1] << 8) | buf[0]; break; case 4: - spi_data = (buf[3] << 24) | (buf[2] << 16) | + spi_data = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; break; default: @@ -439,7 +439,7 @@ static int spiflash_probe(struct platform_device *pdev) spin_lock_init(&spidata->mutex); init_waitqueue_head(&spidata->wq); spidata->state = FL_READY; - + if (!spidata->mmraddr) { printk (KERN_WARNING SPIFLASH "Failed to map flash device\n"); kfree(spidata); @@ -451,7 +451,7 @@ static int spiflash_probe(struct platform_device *pdev) kfree(spidata); return -ENXIO; } - + if (!(index = spiflash_probe_chip())) { printk (KERN_WARNING SPIFLASH "Found no serial flash device\n"); goto error; @@ -483,9 +483,9 @@ static int spiflash_probe(struct platform_device *pdev) result = add_mtd_partitions(mtd, spidata->parsed_parts, num_parts); spidata->mtd = mtd; - + return (result); - + error: kfree(mtd); kfree(spidata); @@ -505,7 +505,7 @@ struct platform_driver spiflash_driver = { .remove = spiflash_remove, }; -int __init +int __init spiflash_init (void) { spidata = kmalloc(sizeof(struct spiflash_data), GFP_KERNEL); @@ -518,7 +518,7 @@ spiflash_init (void) return 0; } -void __exit +void __exit spiflash_exit (void) { kfree(spidata); |