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ipq40xx: add support for Macronix MX35LF1GE4AB SPI NAND

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Without a proper SPI NAND support (SPI NAND framework is available in
kernel >= 4.19) the only way to make such flash working is to include
it in raw/parallel NAND subsystem support and combine with mt29f staging
driver. Obviously, this approach isn't going to be accepted by upstream
(similar support for Winbond W25N01GV was rejected).

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
This commit is contained in:
Piotr Dymacz 2019-01-29 18:12:51 +01:00
parent bf4630e5ad
commit 99f72c0d62
1 changed files with 13 additions and 0 deletions
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13
target/linux/ipq40xx/patches-4.14/085-mtd-nand-add-macronix-mx35lf1ge4ab.patch Normal file
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@ -0,0 +1,13 @@
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -54,6 +54,10 @@ struct nand_flash_dev nand_flash_ids[] =
{ .id = {0xad, 0xde, 0x94, 0xda, 0x74, 0xc4} },
SZ_8K, SZ_8K, SZ_2M, NAND_NEED_SCRAMBLING, 6, 640,
NAND_ECC_INFO(40, SZ_1K), 4 },
+ {"MX35LF1GE4AB 1G 3.3V 8-bit",
+ { .id = {0xc2, 0x12} },
+ SZ_2K, SZ_128, SZ_128K, NAND_NO_SUBPAGE_WRITE,
+ 2, 64, NAND_ECC_INFO(4, SZ_512) },
{"W25N01GV 1G 3.3V 8-bit",
{ .id = {0xef, 0xaa} },
SZ_2K, SZ_128, SZ_128K, NAND_NO_SUBPAGE_WRITE,