mtd: nand: raw: rockchip_nfc: fix ecc setup

A Rockchip NAND Flash Controller (NFC) supports multiple
flash devices. The SoC boot ROM only checks for NAND chip 0
and with reduced ECC strength. Currently only the read page
functions have this condition check added in the U-Boot
driver.

In single- and multi-chip nodes with rockchip,boot-blks and
rockchip,boot-ecc-strength set, the chips that aren't chip 0
will thus have an ECC mismatch when writing and reading.

Fix by adding the same condition to all read and write page
functions by dropping the existing 'selected_bank == 0' check
and use the NAND_IS_BOOT_MEDIUM option that was introduced to
U-Boot more recently than this driver to behave
identically to the Linux driver.

NAND_IS_BOOT_MEDIUM is automatically set when nand-is-boot-medium
property is set in the Device Tree, which is a requirement for
rockchip,boot-blks and rockchip,boot-ecc-strength and will thus
apply to all chips in single- and multi-chips nodes, regardless
of the CS.

Fixes: b12dc5d6fa76 ("mtd: nand: NFC drivers for RK3308, RK2928 and others")
Signed-off-by: Johan Jonker <[email protected]>
Tested-by: Hüseyin BIYIK <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Quentin Schulz <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Quentin Schulz <[email protected]>

0 files changed, 0 insertions, 0 deletions