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mediatek: spi-nand: check for 1 byte BBM only

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the OOB layout in MTK SNFI uses the 2nd byte, and anything using OOB
will make the block a bad-block in spi-nand driver.
Hack it for now. We need a proper solution upstream.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
This commit is contained in:
Chuanhong Guo 2022-04-07 10:05:56 +08:00
parent 861efe158a
commit 2138956bdc
1 changed files with 20 additions and 0 deletions
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20
target/linux/mediatek/patches-5.15/121-hack-spi-nand-1b-bbm.patch Normal file
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@ -0,0 +1,20 @@
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -715,7 +715,7 @@ static int spinand_mtd_write(struct mtd_
static bool spinand_isbad(struct nand_device *nand, const struct nand_pos *pos)
{
struct spinand_device *spinand = nand_to_spinand(nand);
- u8 marker[2] = { };
+ u8 marker[1] = { };
struct nand_page_io_req req = {
.pos = *pos,
.ooblen = sizeof(marker),
@@ -726,7 +726,7 @@ static bool spinand_isbad(struct nand_de
spinand_select_target(spinand, pos->target);
spinand_read_page(spinand, &req);
- if (marker[0] != 0xff || marker[1] != 0xff)
+ if (marker[0] != 0xff)
return true;
return false;