diff options
Diffstat (limited to 'drivers/mtd/nand/raw/pl35x-nand-controller.c')
| -rw-r--r-- | drivers/mtd/nand/raw/pl35x-nand-controller.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/mtd/nand/raw/pl35x-nand-controller.c b/drivers/mtd/nand/raw/pl35x-nand-controller.c index 3c6f6aff649f..11bd90e3f18c 100644 --- a/drivers/mtd/nand/raw/pl35x-nand-controller.c +++ b/drivers/mtd/nand/raw/pl35x-nand-controller.c @@ -23,9 +23,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/rawnand.h> #include <linux/mtd/partitions.h> -#include <linux/of_address.h> -#include <linux/of_device.h> -#include <linux/of_platform.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/clk.h> @@ -130,7 +128,7 @@ struct pl35x_nand { * @conf_regs: SMC configuration registers for command phase * @io_regs: NAND data registers for data phase * @controller: Core NAND controller structure - * @chip: NAND chip information structure + * @chips: List of connected NAND chips * @selected_chip: NAND chip currently selected by the controller * @assigned_cs: List of assigned CS * @ecc_buf: Temporary buffer to extract ECC bytes @@ -189,7 +187,7 @@ static const struct mtd_ooblayout_ops pl35x_ecc_ooblayout16_ops = { .free = pl35x_ecc_ooblayout16_free, }; -/* Generic flash bbt decriptors */ +/* Generic flash bbt descriptors */ static u8 bbt_pattern[] = { 'B', 'b', 't', '0' }; static u8 mirror_pattern[] = { '1', 't', 'b', 'B' }; @@ -513,6 +511,7 @@ static int pl35x_nand_write_page_hwecc(struct nand_chip *chip, u32 addr1 = 0, addr2 = 0, row; u32 cmd_addr; int i, ret; + u8 status; ret = pl35x_smc_set_ecc_mode(nfc, chip, PL35X_SMC_ECC_CFG_MODE_APB); if (ret) @@ -565,6 +564,14 @@ static int pl35x_nand_write_page_hwecc(struct nand_chip *chip, if (ret) goto disable_ecc_engine; + /* Check write status on the chip side */ + ret = nand_status_op(chip, &status); + if (ret) + goto disable_ecc_engine; + + if (status & NAND_STATUS_FAIL) + ret = -EIO; + disable_ecc_engine: pl35x_smc_set_ecc_mode(nfc, chip, PL35X_SMC_ECC_CFG_MODE_BYPASS); @@ -1104,7 +1111,7 @@ static void pl35x_nand_chips_cleanup(struct pl35x_nandc *nfc) static int pl35x_nand_chips_init(struct pl35x_nandc *nfc) { - struct device_node *np = nfc->dev->of_node, *nand_np; + struct device_node *np = nfc->dev->of_node; int nchips = of_get_child_count(np); int ret; @@ -1114,10 +1121,9 @@ static int pl35x_nand_chips_init(struct pl35x_nandc *nfc) return -EINVAL; } - for_each_child_of_node(np, nand_np) { + for_each_child_of_node_scoped(np, nand_np) { ret = pl35x_nand_chip_init(nfc, nand_np); if (ret) { - of_node_put(nand_np); pl35x_nand_chips_cleanup(nfc); break; } @@ -1131,7 +1137,7 @@ static int pl35x_nand_probe(struct platform_device *pdev) struct device *smc_dev = pdev->dev.parent; struct amba_device *smc_amba = to_amba_device(smc_dev); struct pl35x_nandc *nfc; - u32 ret; + int ret; nfc = devm_kzalloc(&pdev->dev, sizeof(*nfc), GFP_KERNEL); if (!nfc) @@ -1163,13 +1169,11 @@ static int pl35x_nand_probe(struct platform_device *pdev) return 0; } -static int pl35x_nand_remove(struct platform_device *pdev) +static void pl35x_nand_remove(struct platform_device *pdev) { struct pl35x_nandc *nfc = platform_get_drvdata(pdev); pl35x_nand_chips_cleanup(nfc); - - return 0; } static const struct of_device_id pl35x_nand_of_match[] = { @@ -1180,7 +1184,7 @@ MODULE_DEVICE_TABLE(of, pl35x_nand_of_match); static struct platform_driver pl35x_nandc_driver = { .probe = pl35x_nand_probe, - .remove = pl35x_nand_remove, + .remove = pl35x_nand_remove, .driver = { .name = PL35X_NANDC_DRIVER_NAME, .of_match_table = pl35x_nand_of_match, @@ -1189,6 +1193,5 @@ static struct platform_driver pl35x_nandc_driver = { module_platform_driver(pl35x_nandc_driver); MODULE_AUTHOR("Xilinx, Inc."); -MODULE_ALIAS("platform:" PL35X_NANDC_DRIVER_NAME); MODULE_DESCRIPTION("ARM PL35X NAND controller driver"); MODULE_LICENSE("GPL"); |