Commit 13ed7aed authored by Brian Norris's avatar Brian Norris Committed by David Woodhouse
Browse files

mtd: nand: support new Toshiba SLC 



Toshiba does not use ONFI for their NAND flash. So we have to continue
to add new IDs used by Toshiba devices as well as heuristic detection
for scanning the 2nd page for a BBM. This is a relatively harmless
start at supporting many of them.

These chips mostly follow the same ID fields of previous generations,
but there is a need for a tweak.

These chips introduce a strange 576 byte OOB (that's 36 bytes per
512 bytes of page). In the preliminary data, Toshiba has not
defined exactly how their ID strings should decode. In the future,
a new tweak must be added.

Data is taken from, among others, Toshiba TC58TxG4S2FBAxx

Signed-off-by: default avatarBrian Norris <norris@broadcom.com>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 5c709ee9

drivers/mtd/nand/nand_base.c

+3 −2
Original line number Diff line number Diff line
@@ -2972,8 +2972,8 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, 
	 * Bad block marker is stored in the last page of each block

	 * on Samsung and Hynix MLC devices; stored in first two pages

	 * of each block on Micron devices with 2KiB pages and on

	 * SLC Samsung, Hynix, and AMD/Spansion. All others scan only

	 * the first page.

	 * SLC Samsung, Hynix, Toshiba and AMD/Spansion. All others scan

	 * only the first page.

	 */

	if ((chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&

			(*maf_id == NAND_MFR_SAMSUNG ||
@@ -2982,6 +2982,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, 
	else if ((!(chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&

				(*maf_id == NAND_MFR_SAMSUNG ||

				 *maf_id == NAND_MFR_HYNIX ||

				 *maf_id == NAND_MFR_TOSHIBA ||

				 *maf_id == NAND_MFR_AMD)) ||

			(mtd->writesize == 2048 &&

			 *maf_id == NAND_MFR_MICRON))

drivers/mtd/nand/nand_ids.c

+31 −0
Original line number Diff line number Diff line
@@ -75,9 +75,13 @@ struct nand_flash_dev nand_flash_ids[] = { 


	/*512 Megabit */

	{"NAND 64MiB 1,8V 8-bit",	0xA2, 0,  64, 0, LP_OPTIONS},

	{"NAND 64MiB 1,8V 8-bit",	0xA0, 0,  64, 0, LP_OPTIONS},

	{"NAND 64MiB 3,3V 8-bit",	0xF2, 0,  64, 0, LP_OPTIONS},

	{"NAND 64MiB 3,3V 8-bit",	0xD0, 0,  64, 0, LP_OPTIONS},

	{"NAND 64MiB 1,8V 16-bit",	0xB2, 0,  64, 0, LP_OPTIONS16},

	{"NAND 64MiB 1,8V 16-bit",	0xB0, 0,  64, 0, LP_OPTIONS16},

	{"NAND 64MiB 3,3V 16-bit",	0xC2, 0,  64, 0, LP_OPTIONS16},

	{"NAND 64MiB 3,3V 16-bit",	0xC0, 0,  64, 0, LP_OPTIONS16},



	/* 1 Gigabit */

	{"NAND 128MiB 1,8V 8-bit",	0xA1, 0, 128, 0, LP_OPTIONS},
@@ -112,7 +116,34 @@ struct nand_flash_dev nand_flash_ids[] = { 
	{"NAND 2GiB 3,3V 16-bit",	0xC5, 0, 2048, 0, LP_OPTIONS16},



	/* 32 Gigabit */

	{"NAND 4GiB 1,8V 8-bit",	0xA7, 0, 4096, 0, LP_OPTIONS},

	{"NAND 4GiB 3,3V 8-bit",	0xD7, 0, 4096, 0, LP_OPTIONS},

	{"NAND 4GiB 1,8V 16-bit",	0xB7, 0, 4096, 0, LP_OPTIONS16},

	{"NAND 4GiB 3,3V 16-bit",	0xC7, 0, 4096, 0, LP_OPTIONS16},



	/* 64 Gigabit */

	{"NAND 8GiB 1,8V 8-bit",	0xAE, 0, 8192, 0, LP_OPTIONS},

	{"NAND 8GiB 3,3V 8-bit",	0xDE, 0, 8192, 0, LP_OPTIONS},

	{"NAND 8GiB 1,8V 16-bit",	0xBE, 0, 8192, 0, LP_OPTIONS16},

	{"NAND 8GiB 3,3V 16-bit",	0xCE, 0, 8192, 0, LP_OPTIONS16},



	/* 128 Gigabit */

	{"NAND 16GiB 1,8V 8-bit",	0x1A, 0, 16384, 0, LP_OPTIONS},

	{"NAND 16GiB 3,3V 8-bit",	0x3A, 0, 16384, 0, LP_OPTIONS},

	{"NAND 16GiB 1,8V 16-bit",	0x2A, 0, 16384, 0, LP_OPTIONS16},

	{"NAND 16GiB 3,3V 16-bit",	0x4A, 0, 16384, 0, LP_OPTIONS16},



	/* 256 Gigabit */

	{"NAND 32GiB 1,8V 8-bit",	0x1C, 0, 32768, 0, LP_OPTIONS},

	{"NAND 32GiB 3,3V 8-bit",	0x3C, 0, 32768, 0, LP_OPTIONS},

	{"NAND 32GiB 1,8V 16-bit",	0x2C, 0, 32768, 0, LP_OPTIONS16},

	{"NAND 32GiB 3,3V 16-bit",	0x4C, 0, 32768, 0, LP_OPTIONS16},



	/* 512 Gigabit */

	{"NAND 64GiB 1,8V 8-bit",	0x1E, 0, 65536, 0, LP_OPTIONS},

	{"NAND 64GiB 3,3V 8-bit",	0x3E, 0, 65536, 0, LP_OPTIONS},

	{"NAND 64GiB 1,8V 16-bit",	0x2E, 0, 65536, 0, LP_OPTIONS16},

	{"NAND 64GiB 3,3V 16-bit",	0x4E, 0, 65536, 0, LP_OPTIONS16},



	/*

	 * Renesas AND 1 Gigabit. Those chips do not support extended id and

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