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| author | Mathias Kresin <dev@kresin.me> | 2017-04-11 19:46:16 +0200 |
|---|---|---|
| committer | Mathias Kresin <dev@kresin.me> | 2017-04-19 21:00:52 +0200 |
| commit | 226e194335c0d9a92402fbab772eac4f38786e45 (patch) | |
| tree | 7d8164154b44f22b5bcf97a10fd5669a49595968 /target/linux/generic | |
| parent | e209988a17d3ef67c75c8e337df7dc44675264af (diff) | |
| download | upstream-226e194335c0d9a92402fbab772eac4f38786e45.tar.gz upstream-226e194335c0d9a92402fbab772eac4f38786e45.tar.bz2 upstream-226e194335c0d9a92402fbab772eac4f38786e45.zip | |
generic: mtd: backport mx25u25635f stateless 4b support
Use the stateless 4-byte op codes for this flash chip to fix reboot
hangs on SoCs expecting the flash chip in 3-byte mode.
Fixes: FS#179
Signed-off-by: Mathias Kresin <dev@kresin.me>
Diffstat (limited to 'target/linux/generic')
| -rw-r--r-- | target/linux/generic/patches-4.9/063-mtd-spi-nor-enable-stateless-4b-op-codes-for-mx25u25.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.9/063-mtd-spi-nor-enable-stateless-4b-op-codes-for-mx25u25.patch b/target/linux/generic/patches-4.9/063-mtd-spi-nor-enable-stateless-4b-op-codes-for-mx25u25.patch new file mode 100644 index 0000000000..339591500f --- /dev/null +++ b/target/linux/generic/patches-4.9/063-mtd-spi-nor-enable-stateless-4b-op-codes-for-mx25u25.patch @@ -0,0 +1,29 @@ +From b0fcb4b413028376894feaaaf62bcb09ab1b52f2 Mon Sep 17 00:00:00 2001 +From: Mathias Kresin <dev@kresin.me> +Date: Thu, 13 Apr 2017 09:23:54 +0200 +Subject: [PATCH] mtd: spi-nor: enable stateless 4b op codes for mx25u25635f + +All required stateless 4-byte op codes are supported by this flash +chip. The stateless 4-byte support can't be autodetected due to a +missing 4-byte Address Instruction Table in SFDP. + +Fixes hangs on reboot for SoCs expecting the flash chip in 3byte mode. + +Signed-off-by: Mathias Kresin <dev@kresin.me> +Acked-by: Marek Vasut <marek.vasut@gmail.com> +Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> +--- + drivers/mtd/spi-nor/spi-nor.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/mtd/spi-nor/spi-nor.c ++++ b/drivers/mtd/spi-nor/spi-nor.c +@@ -1017,7 +1017,7 @@ static const struct flash_info spi_nor_i + { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) }, + { "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) }, + { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) }, +- { "mx25u25635f", INFO(0xc22539, 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_QUAD_READ) }, + { "mx66l1g55g", INFO(0xc2261b, 0, 64 * 1024, 2048, SPI_NOR_QUAD_READ) }, |