No functional changes, just some refactoring to match better linux kernel driver.
changes: * move spinand configuration reading out from spinand_init_cfg_cache() to separate function spinand_read_cfg() * move spinand flash initialization to separate function spinand_init_flash() * move direct mapping initialization to the end of spinand_init()
Signed-off-by: Mikhail Kshevetskiy mikhail.kshevetskiy@iopsys.eu --- drivers/mtd/nand/spi/core.c | 112 ++++++++++++++++++++++-------------- 1 file changed, 70 insertions(+), 42 deletions(-)
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index 9629fac3388..6ca8b7c80cc 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -160,20 +160,12 @@ int spinand_select_target(struct spinand_device *spinand, unsigned int target) return 0; }
-static int spinand_init_cfg_cache(struct spinand_device *spinand) +static int spinand_read_cfg(struct spinand_device *spinand) { struct nand_device *nand = spinand_to_nand(spinand); - struct udevice *dev = spinand->slave->dev; unsigned int target; int ret;
- spinand->cfg_cache = devm_kzalloc(dev, - sizeof(*spinand->cfg_cache) * - nand->memorg.ntargets, - GFP_KERNEL); - if (!spinand->cfg_cache) - return -ENOMEM; - for (target = 0; target < nand->memorg.ntargets; target++) { ret = spinand_select_target(spinand, target); if (ret) @@ -192,6 +184,21 @@ static int spinand_init_cfg_cache(struct spinand_device *spinand) return 0; }
+static int spinand_init_cfg_cache(struct spinand_device *spinand) +{ + struct nand_device *nand = spinand_to_nand(spinand); + struct udevice *dev = spinand->slave->dev; + + spinand->cfg_cache = devm_kcalloc(dev, + nand->memorg.ntargets, + sizeof(*spinand->cfg_cache), + GFP_KERNEL); + if (!spinand->cfg_cache) + return -ENOMEM; + + return 0; +} + static int spinand_init_quad_enable(struct spinand_device *spinand) { bool enable = false; @@ -1073,11 +1080,55 @@ static const struct mtd_ooblayout_ops spinand_noecc_ooblayout = { .rfree = spinand_noecc_ooblayout_free, };
+static int spinand_init_flash(struct spinand_device *spinand) +{ + struct udevice *dev = spinand->slave->dev; + struct nand_device *nand = spinand_to_nand(spinand); + int ret, i; + + ret = spinand_read_cfg(spinand); + if (ret) + return ret; + + ret = spinand_init_quad_enable(spinand); + if (ret) + return ret; + + ret = spinand_upd_cfg(spinand, CFG_OTP_ENABLE, 0); + if (ret) + return ret; + + ret = spinand_manufacturer_init(spinand); + if (ret) { + dev_err(dev, + "Failed to initialize the SPI NAND chip (err = %d)\n", + ret); + return ret; + } + + /* After power up, all blocks are locked, so unlock them here. */ + for (i = 0; i < nand->memorg.ntargets; i++) { + ret = spinand_select_target(spinand, i); + if (ret) + break; + + ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED); + if (ret) + break; + } + + if (ret) + spinand_manufacturer_cleanup(spinand); + + return ret; +} + static int spinand_init(struct spinand_device *spinand) { + struct udevice *dev = spinand->slave->dev; struct mtd_info *mtd = spinand_to_mtd(spinand); struct nand_device *nand = mtd_to_nanddev(mtd); - int ret, i; + int ret;
/* * We need a scratch buffer because the spi_mem interface requires that @@ -1110,41 +1161,10 @@ static int spinand_init(struct spinand_device *spinand) if (ret) goto err_free_bufs;
- ret = spinand_init_quad_enable(spinand); + ret = spinand_init_flash(spinand); if (ret) goto err_free_bufs;
- ret = spinand_upd_cfg(spinand, CFG_OTP_ENABLE, 0); - if (ret) - goto err_free_bufs; - - ret = spinand_manufacturer_init(spinand); - if (ret) { - dev_err(spinand->slave->dev, - "Failed to initialize the SPI NAND chip (err = %d)\n", - ret); - goto err_free_bufs; - } - - ret = spinand_create_dirmaps(spinand); - if (ret) { - dev_err(spinand->slave->dev, - "Failed to create direct mappings for read/write operations (err = %d)\n", - ret); - goto err_manuf_cleanup; - } - - /* After power up, all blocks are locked, so unlock them here. */ - for (i = 0; i < nand->memorg.ntargets; i++) { - ret = spinand_select_target(spinand, i); - if (ret) - goto err_manuf_cleanup; - - ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED); - if (ret) - goto err_manuf_cleanup; - } - ret = nanddev_init(nand, &spinand_ops, THIS_MODULE); if (ret) goto err_manuf_cleanup; @@ -1171,6 +1191,14 @@ static int spinand_init(struct spinand_device *spinand)
mtd->oobavail = ret;
+ ret = spinand_create_dirmaps(spinand); + if (ret) { + dev_err(dev, + "Failed to create direct mappings for read/write operations (err = %d)\n", + ret); + goto err_cleanup_nanddev; + } + return 0;
err_cleanup_nanddev: