openwrt/target/linux/ipq806x/patches-4.14/105-mtd-nor-add-mx25l25635f.patch
Kuan-Yi Li f1525e785e kernel: backport GD25Q256 support from 4.15
Backport below changes for GigaDevice GD25Q256 support from v4.15:

  e27072851bf7 mtd: spi-nor: add a quad_enable callback in struct flash_info
  65153846b18c mtd: spi-nor: add support for GD25Q256

This chip is used on newer Quad-E4G boards.

Before:

[    2.366493] m25p80 spi0.0: unrecognized JEDEC id bytes: c8, 40, 19
[    2.372853] m25p80: probe of spi0.0 failed with error -2

After:

[    2.371722] m25p80 spi0.0: gd25q256 (32768 Kbytes)
[    2.376694] 5 fixed-partitions partitions found on MTD device spi0.0
[    2.383043] Creating 5 MTD partitions on "spi0.0":
[    2.387824] 0x000000000000-0x000000030000 : "u-boot"
[    2.394138] 0x000000030000-0x000000031000 : "u-boot-env"
[    2.400608] 0x000000031000-0x000000040000 : "config"
[    2.406830] 0x000000040000-0x000000050000 : "factory"
[    2.413169] 0x000000050000-0x000002000000 : "firmware"

Signed-off-by: Kuan-Yi Li <kyli@abysm.org>
2020-12-01 21:59:30 +01:00

23 lines
1.1 KiB
Diff

Subject: mtd: spi-nor: add mx25l25635f with SECT_4K
This patch fixes an issue with the creation of the
ubi volume on the AVM FRITZ!Box 4040. The mx25l25635f
and mx25l25635e support SECT_4K which will set the
erase size to 4K. This is used by ubi to calculate
VID header offsets. Without this, uboot and linux
disagrees about the layout and refuse to attach
the ubi volume created by the other.
---
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1046,7 +1046,7 @@ static const struct flash_info spi_nor_i
{ "mx25u6435f", INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },
{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
- { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+ { "mx25l25635f", INFO(0xc22019, 0, 64 * 1024, 512, SECT_4K) },
{ "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_4B_OPCODES) },
{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
{ "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },