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f1525e785e
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>
19 lines
590 B
Diff
19 lines
590 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Subject: Disable software protection bits for Macronix flashes.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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drivers/mtd/spi-nor/spi-nor.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/mtd/spi-nor/spi-nor.c
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+++ b/drivers/mtd/spi-nor/spi-nor.c
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@@ -2733,6 +2733,7 @@ int spi_nor_scan(struct spi_nor *nor, co
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if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
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JEDEC_MFR(info) == SNOR_MFR_INTEL ||
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+ JEDEC_MFR(info) == SNOR_MFR_MACRONIX ||
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JEDEC_MFR(info) == SNOR_MFR_SST ||
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info->flags & SPI_NOR_HAS_LOCK) {
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write_enable(nor);
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