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mtd: nand: sunxi: rely on nand_dt_init initialization 

nand_dt_init(), called from nand_scan_ident(), is already parsing the
generic MTD/NAND DT properties, and initializing the nand_chip struct
accordingly.
Rely on this initialization instead of manually parsing those properties.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Brian: rename 'np' -> 'flash_node' to accomodate for prior rename patch]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Boris BREZILLON 2015-09-02 10:30:25 +02:00 committed by Brian Norris
parent 61528d888a
commit a3d22a55cd
1 changed files with 10 additions and 17 deletions
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27
drivers/mtd/nand/sunxi_nand.c
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@ -1168,16 +1168,9 @@ static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc,
struct device_node *np)
{
struct nand_chip *nand = mtd->priv;
int strength;
int blk_size;
int ret;
blk_size = of_get_nand_ecc_step_size(np);
strength = of_get_nand_ecc_strength(np);
if (blk_size > 0 && strength > 0) {
ecc->size = blk_size;
ecc->strength = strength;
} else {
if (!ecc->size) {
ecc->size = nand->ecc_step_ds;
ecc->strength = nand->ecc_strength_ds;
}
@ -1185,12 +1178,6 @@ static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc,
if (!ecc->size || !ecc->strength)
return -EINVAL;
ecc->mode = NAND_ECC_HW;
ret = of_get_nand_ecc_mode(np);
if (ret >= 0)
ecc->mode = ret;
switch (ecc->mode) {
case NAND_ECC_SOFT_BCH:
break;
@ -1316,15 +1303,18 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
/* Default tR value specified in the ONFI spec (chapter 4.15.1) */
nand->chip_delay = 200;
nand->controller = &nfc->controller;
/*
* Set the ECC mode to the default value in case nothing is specified
* in the DT.
*/
nand->ecc.mode = NAND_ECC_HW;
nand->flash_node = np;
nand->select_chip = sunxi_nfc_select_chip;
nand->cmd_ctrl = sunxi_nfc_cmd_ctrl;
nand->read_buf = sunxi_nfc_read_buf;
nand->write_buf = sunxi_nfc_write_buf;
nand->read_byte = sunxi_nfc_read_byte;
if (of_get_nand_on_flash_bbt(np))
nand->bbt_options |= NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
mtd = &chip->mtd;
mtd->dev.parent = dev;
mtd->priv = nand;
@ -1334,6 +1324,9 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
if (ret)
return ret;
if (nand->bbt_options & NAND_BBT_USE_FLASH)
nand->bbt_options |= NAND_BBT_NO_OOB;
ret = sunxi_nand_chip_init_timings(chip, np);
if (ret) {
dev_err(dev, "could not configure chip timings: %d\n", ret);