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mtd: spi-nor: add SPI NOR manufacturer IDs

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These are often similar for CFI (parallel NOR) and for SPI NOR, but they
aren't always the same, for various reasons (different namespaces,
company acquisitions and renames, etc.). And some don't have CFI_MFR_*
entries at all.

So let's make a proper place to list the SPI NOR IDs, with all the SPI
NOR specific assumptions and comments.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Brian Norris 2015-09-01 12:57:08 -07:00
parent a8a16454ed
commit db4745edb2
1 changed files with 15 additions and 0 deletions
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15
include/linux/mtd/spi-nor.h
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@ -11,6 +11,21 @@
#define __LINUX_MTD_SPI_NOR_H
#include <linux/bitops.h>
#include <linux/mtd/cfi.h>
/*
* Manufacturer IDs
*
* The first byte returned from the flash after sending opcode SPINOR_OP_RDID.
* Sometimes these are the same as CFI IDs, but sometimes they aren't.
*/
#define SNOR_MFR_ATMEL CFI_MFR_ATMEL
#define SNOR_MFR_INTEL CFI_MFR_INTEL
#define SNOR_MFR_MICRON CFI_MFR_ST /* ST Micro <--> Micron */
#define SNOR_MFR_MACRONIX CFI_MFR_MACRONIX
#define SNOR_MFR_SPANSION CFI_MFR_AMD
#define SNOR_MFR_SST CFI_MFR_SST
#define SNOR_MFR_WINBOND 0xef
/*
* Note on opcode nomenclature: some opcodes have a format like