mtd: decommission the NAND museum

The MTD subsystem has its own small museum of ancient NANDs in a form of the
CONFIG_MTD_NAND_MUSEUM_IDS configuration option. The museum contains stone age
NANDs with 256 bytes pages, as well as iron age NANDs with 512 bytes per page
and up to 8MiB page size.

It is with great sorrow that I inform you that the museum is being
decommissioned. The MTD subsystem is out of budget for Kconfig options and
already has too many of them, and there is a general kernel trend to simplify
the configuration menu.

We remove the stone age exhibits along with closing the museum, but some of the
iron age ones are transferred to the regular NAND depot. Namely, only those
which have unique device IDs are transferred, and the ones which have
conflicting device IDs are removed.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 81bf5e52601e00177ef6b20a84c7536643d42594..0f443ef0a37258fddee2e953e896fd01a4ff1ec1 100644 (file)
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -41,14 +41,6 @@ config MTD_SM_COMMON
        tristate
        default n
 
-config MTD_NAND_MUSEUM_IDS
-       bool "Enable chip ids for obsolete ancient NAND devices"
-       default n
-       help
-         Enable this option only when your board has first generation
-         NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
-         of these chips were reused by later, larger chips.
-
 config MTD_NAND_DENALI
         tristate "Support Denali NAND controller"
         help

diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index c44e89fbbf799a211cdfe6dce36fbbe571a219a2..818bb9e29819162ed74c7ffe65b8cb5e2b93f9ac 100644 (file)
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -25,23 +25,11 @@
  * extended chip ID.
  */
 struct nand_flash_dev nand_flash_ids[] = {
-#ifdef CONFIG_MTD_NAND_MUSEUM_IDS
-       {"NAND 1MiB 5V 8-bit",          0x6e, 256, 1, 0x1000, SP_OPTIONS},
-       {"NAND 2MiB 5V 8-bit",          0x64, 256, 2, 0x1000, SP_OPTIONS},
-       {"NAND 4MiB 5V 8-bit",          0x6b, 512, 4, 0x2000, SP_OPTIONS},
-       {"NAND 1MiB 3,3V 8-bit",        0xe8, 256, 1, 0x1000, SP_OPTIONS},
-       {"NAND 1MiB 3,3V 8-bit",        0xec, 256, 1, 0x1000, SP_OPTIONS},
-       {"NAND 2MiB 3,3V 8-bit",        0xea, 256, 2, 0x1000, SP_OPTIONS},
-       {"NAND 4MiB 3,3V 8-bit",        0xd5, 512, 4, 0x2000, SP_OPTIONS},
-       {"NAND 4MiB 3,3V 8-bit",        0xe3, 512, 4, 0x2000, SP_OPTIONS},
-       {"NAND 4MiB 3,3V 8-bit",        0xe5, 512, 4, 0x2000, SP_OPTIONS},
-       {"NAND 8MiB 3,3V 8-bit",        0xd6, 512, 8, 0x2000, SP_OPTIONS},
-
-       {"NAND 8MiB 1,8V 8-bit",        0x39, 512, 8, 0x2000, SP_OPTIONS},
-       {"NAND 8MiB 3,3V 8-bit",        0xe6, 512, 8, 0x2000, SP_OPTIONS},
-       {"NAND 8MiB 1,8V 16-bit",       0x49, 512, 8, 0x2000, SP_OPTIONS16},
-       {"NAND 8MiB 3,3V 16-bit",       0x59, 512, 8, 0x2000, SP_OPTIONS16},
-#endif
+       {"NAND 4MiB 5V 8-bit",          0x6B, 512, 4, 0x2000, SP_OPTIONS},
+       {"NAND 4MiB 3,3V 8-bit",        0xE3, 512, 4, 0x2000, SP_OPTIONS},
+       {"NAND 4MiB 3,3V 8-bit",        0xE5, 512, 4, 0x2000, SP_OPTIONS},
+       {"NAND 8MiB 3,3V 8-bit",        0xD6, 512, 8, 0x2000, SP_OPTIONS},
+       {"NAND 8MiB 3,3V 8-bit",        0xE6, 512, 8, 0x2000, SP_OPTIONS},
 
        {"NAND 16MiB 1,8V 8-bit",       0x33, 512, 16, 0x4000, SP_OPTIONS},
        {"NAND 16MiB 3,3V 8-bit",       0x73, 512, 16, 0x4000, SP_OPTIONS},