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path: root/drivers/mtd/nand/davinci_nand.c
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Diffstat (limited to 'drivers/mtd/nand/davinci_nand.c')
-rw-r--r--drivers/mtd/nand/davinci_nand.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 0119220de7d..68b747584bc 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -306,6 +306,10 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
uint32_t val;
nand_ecc_modes_t ecc_mode;
+ /* insist on board-specific configuration */
+ if (!pdata)
+ return -ENODEV;
+
/* which external chipselect will we be managing? */
if (pdev->id < 0 || pdev->id > 3)
return -ENODEV;
@@ -351,7 +355,7 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
info->chip.select_chip = nand_davinci_select_chip;
/* options such as NAND_USE_FLASH_BBT or 16-bit widths */
- info->chip.options = pdata ? pdata->options : 0;
+ info->chip.options = pdata->options;
info->ioaddr = (uint32_t __force) vaddr;
@@ -360,14 +364,8 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
info->mask_chipsel = pdata->mask_chipsel;
/* use nandboot-capable ALE/CLE masks by default */
- if (pdata && pdata->mask_ale)
- info->mask_ale = pdata->mask_cle;
- else
- info->mask_ale = MASK_ALE;
- if (pdata && pdata->mask_cle)
- info->mask_cle = pdata->mask_cle;
- else
- info->mask_cle = MASK_CLE;
+ info->mask_ale = pdata->mask_cle ? : MASK_ALE;
+ info->mask_cle = pdata->mask_cle ? : MASK_CLE;
/* Set address of hardware control function */
info->chip.cmd_ctrl = nand_davinci_hwcontrol;
@@ -377,11 +375,8 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
info->chip.read_buf = nand_davinci_read_buf;
info->chip.write_buf = nand_davinci_write_buf;
- /* use board-specific ECC config; else, the best available */
- if (pdata)
- ecc_mode = pdata->ecc_mode;
- else
- ecc_mode = NAND_ECC_HW;
+ /* Use board-specific ECC config */
+ ecc_mode = pdata->ecc_mode;
switch (ecc_mode) {
case NAND_ECC_NONE:
@@ -469,7 +464,7 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
info->mtd.name = master_name;
}
- if (mtd_parts_nb <= 0 && pdata) {
+ if (mtd_parts_nb <= 0) {
mtd_parts = pdata->parts;
mtd_parts_nb = pdata->nr_parts;
}
@@ -482,7 +477,7 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
info->partitioned = true;
}
- } else if (pdata && pdata->nr_parts) {
+ } else if (pdata->nr_parts) {
dev_warn(&pdev->dev, "ignoring %d default partitions on %s\n",
pdata->nr_parts, info->mtd.name);
}