deliverable/linux.git
8 years agomtd: nand: gpmi: rely on generic DT parsing done in nand_scan_ident()
Boris Brezillon [Fri, 1 Apr 2016 12:54:26 +0000 (14:54 +0200)] 
mtd: nand: gpmi: rely on generic DT parsing done in nand_scan_ident()

The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Han xu <han.xu@nxp.com>
8 years agomtd: nand: omap2: fix compare_const_fl.cocci warnings
Julia Lawall [Thu, 14 Apr 2016 06:54:30 +0000 (08:54 +0200)] 
mtd: nand: omap2: fix compare_const_fl.cocci warnings

Move constants to the right of binary operators.

Generated by: scripts/coccinelle/misc/compare_const_fl.cocci

CC: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: jz4740: Remove unused local variable
Maarten ter Huurne [Mon, 18 Apr 2016 16:04:56 +0000 (18:04 +0200)] 
mtd: nand: jz4740: Remove unused local variable

Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Acked-by: Harvey Hunt <harvey.hunt@imgtec.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: fsl_elbc: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:07:02 +0000 (14:07 +0200)] 
mtd: nand: fsl_elbc: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: fsl_ifc: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:07:01 +0000 (14:07 +0200)] 
mtd: nand: fsl_ifc: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: fsl_upm: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:07:00 +0000 (14:07 +0200)] 
mtd: nand: fsl_upm: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: cmx270: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:06:59 +0000 (14:06 +0200)] 
mtd: nand: cmx270: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: mpc5121_nfc: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:06:58 +0000 (14:06 +0200)] 
mtd: nand: mpc5121_nfc: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: au1550nd: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:06:57 +0000 (14:06 +0200)] 
mtd: nand: au1550nd: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sh_flctl: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:06:56 +0000 (14:06 +0200)] 
mtd: nand: sh_flctl: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: s3c2410: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:06:55 +0000 (14:06 +0200)] 
mtd: nand: s3c2410: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: omap2: set ECC algorithm explicitly
Rafał Miłecki [Wed, 13 Apr 2016 12:06:54 +0000 (14:06 +0200)] 
mtd: nand: omap2: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: kill the nand_ecclayout struct
Boris Brezillon [Thu, 4 Feb 2016 09:16:18 +0000 (10:16 +0100)] 
mtd: kill the nand_ecclayout struct

Now that all MTD drivers have moved to the mtd_ooblayout_ops model we can
safely remove the struct nand_ecclayout definition, and all the remaining
places where it was still used.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: kill the ecc->layout field
Boris Brezillon [Wed, 3 Feb 2016 18:24:10 +0000 (19:24 +0100)] 
mtd: nand: kill the ecc->layout field

Now that all NAND drivers have switched to mtd_ooblayout_ops, we can kill
the ecc->layout field.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agostaging: mt29f_spinand: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:13:39 +0000 (19:13 +0100)] 
staging: mt29f_spinand: switch to mtd_ooblayout_ops

Replace the nand_ecclayout definition by the equivalent mtd_ooblayout_ops
definition.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: onenand: switch to mtd_ooblayout_ops
Boris Brezillon [Mon, 7 Dec 2015 21:46:45 +0000 (22:46 +0100)] 
mtd: onenand: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users. Modify the onenand drivers to switch to this
approach.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: qcom: switch to mtd_ooblayout_ops
Boris Brezillon [Fri, 18 Mar 2016 16:54:27 +0000 (17:54 +0100)] 
mtd: nand: qcom: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Archit Taneja <architt@codeaurora.org>
8 years agomtd: nand: vf610: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:05:45 +0000 (20:05 +0100)] 
mtd: nand: vf610: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Stefan Agner <stefan@agner.ch>
Acked-by: Stefan Agner <stefan@agner.ch>
8 years agomtd: nand: sunxi: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:05:13 +0000 (20:05 +0100)] 
mtd: nand: sunxi: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sm_common: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:04:59 +0000 (20:04 +0100)] 
mtd: nand: sm_common: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sh_flctl: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:03:47 +0000 (20:03 +0100)] 
mtd: nand: sh_flctl: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: s3c2410: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:03:30 +0000 (20:03 +0100)] 
mtd: nand: s3c2410: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: pxa3xx: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:03:18 +0000 (20:03 +0100)] 
mtd: nand: pxa3xx: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: omap2: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:03:04 +0000 (20:03 +0100)] 
mtd: nand: omap2: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: mxc: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:02:54 +0000 (20:02 +0100)] 
mtd: nand: mxc: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: lpc32xx: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:02:41 +0000 (20:02 +0100)] 
mtd: nand: lpc32xx: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: jz4780: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:02:22 +0000 (20:02 +0100)] 
mtd: nand: jz4780: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Harvey Hunt <harvey.hunt@imgtec.com>
8 years agomtd: nand: hisi504: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:02:09 +0000 (20:02 +0100)] 
mtd: nand: hisi504: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: gpmi: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:01:54 +0000 (20:01 +0100)] 
mtd: nand: gpmi: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Han Xu <han.xu@nxp.com>
Tested-by: Han Xu <han.xu@nxp.com>
8 years agomtd: nand: fsmc: get rid of the fsmc_nand_eccplace struct
Boris Brezillon [Tue, 9 Feb 2016 14:01:21 +0000 (15:01 +0100)] 
mtd: nand: fsmc: get rid of the fsmc_nand_eccplace struct

Now that mtd_ooblayout_ecc() returns the ECC byte position using the
OOB free method, we can get rid of the fsmc_nand_eccplace struct.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: fsmc: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:01:42 +0000 (20:01 +0100)] 
mtd: nand: fsmc: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: fsl_ifc: switch to mtd_ooblayout_ops
Boris Brezillon [Tue, 9 Feb 2016 16:01:57 +0000 (17:01 +0100)] 
mtd: nand: fsl_ifc: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: fsl_elbc: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:01:04 +0000 (20:01 +0100)] 
mtd: nand: fsl_elbc: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: docg4: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:00:35 +0000 (20:00 +0100)] 
mtd: nand: docg4: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: diskonchip: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:00:23 +0000 (20:00 +0100)] 
mtd: nand: diskonchip: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: denali: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 19:00:11 +0000 (20:00 +0100)] 
mtd: nand: denali: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: davinci: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:59:58 +0000 (19:59 +0100)] 
mtd: nand: davinci: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: cafe: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:59:47 +0000 (19:59 +0100)] 
mtd: nand: cafe: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: brcm: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:59:36 +0000 (19:59 +0100)] 
mtd: nand: brcm: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: bf5xx: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:59:25 +0000 (19:59 +0100)] 
mtd: nand: bf5xx: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: atmel: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:59:11 +0000 (19:59 +0100)] 
mtd: nand: atmel: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
8 years agomtd: nand: jz4740: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:58:55 +0000 (19:58 +0100)] 
mtd: nand: jz4740: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
8 years agomtd: nand: sharpsl: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:58:11 +0000 (19:58 +0100)] 
mtd: nand: sharpsl: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: bch: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:53:40 +0000 (19:53 +0100)] 
mtd: nand: bch: switch to mtd_ooblayout_ops

Replace the nand_ecclayout definition by the equivalent mtd_ooblayout_ops
definition.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: implement the default mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:06:15 +0000 (19:06 +0100)] 
mtd: nand: implement the default mtd_ooblayout_ops

Replace the default nand_ecclayout definitions for large and small page
devices with the equivalent mtd_ooblayout_ops.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: docg3: switch to mtd_ooblayout_ops
Boris Brezillon [Wed, 3 Feb 2016 18:05:04 +0000 (19:05 +0100)] 
mtd: docg3: switch to mtd_ooblayout_ops

Replace the nand_ecclayout definition by the equivalent mtd_ooblayout_ops
definition.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
8 years agomtd: create an mtd_ooblayout_ops struct to ease ECC layout definition
Boris Brezillon [Wed, 3 Feb 2016 18:01:31 +0000 (19:01 +0100)] 
mtd: create an mtd_ooblayout_ops struct to ease ECC layout definition

ECC layout definitions are currently exposed using the nand_ecclayout
struct which embeds oobfree and eccpos arrays with predefined size.
This approach was acceptable when NAND chips were providing relatively
small OOB regions, but MLC and TLC now provide OOB regions of several
hundreds of bytes, which implies a non negligible overhead for everybody
even those who only need to support legacy NANDs.

Create an mtd_ooblayout_ops interface providing the same functionality
(expose the ECC and oobfree layout) without the need for this huge
structure.

The mtd->ecclayout is now deprecated and should be replaced by the
equivalent mtd_ooblayout_ops. In the meantime we provide a wrapper around
the ->ecclayout field to ease migration to this new model.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: docg3: use mtd_set_ecclayout() where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:14:14 +0000 (20:14 +0100)] 
mtd: docg3: use mtd_set_ecclayout() where appropriate

Use the mtd_set_ecclayout() helper instead of directly assigning the
mtd->ecclayout field.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
8 years agomtd: onenand: use mtd_set_ecclayout() where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:14:03 +0000 (20:14 +0100)] 
mtd: onenand: use mtd_set_ecclayout() where appropriate

Use the mtd_set_ecclayout() helper instead of directly assigning the
mtd->ecclayout field.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: use mtd_set_ecclayout() where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:13:50 +0000 (20:13 +0100)] 
mtd: nand: use mtd_set_ecclayout() where appropriate

Use the mtd_set_ecclayout() helper instead of directly assigning the
mtd->ecclayout field.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: use mtd_set_ecclayout() where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:13:26 +0000 (20:13 +0100)] 
mtd: use mtd_set_ecclayout() where appropriate

Use the mtd_set_ecclayout() helper instead of directly assigning the
mtd->ecclayout field.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: add mtd_set_ecclayout() helper function
Boris Brezillon [Wed, 3 Feb 2016 17:53:44 +0000 (18:53 +0100)] 
mtd: add mtd_set_ecclayout() helper function

Add an mtd_set_ecclayout() helper function to avoid direct accesses to the
mtd->ecclayout field. This will ease future reworks of ECC layout
definition.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: onenand: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:12:31 +0000 (20:12 +0100)] 
mtd: onenand: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: qcom: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Fri, 18 Mar 2016 16:53:31 +0000 (17:53 +0100)] 
mtd: nand: qcom: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to ecclayout fields, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Archit Taneja <architt@codeaurora.org>
8 years agomtd: nand: omap2: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:12:19 +0000 (20:12 +0100)] 
mtd: nand: omap2: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: lpc32xx: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:12:04 +0000 (20:12 +0100)] 
mtd: nand: lpc32xx: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: gpmi: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:11:44 +0000 (20:11 +0100)] 
mtd: nand: gpmi: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: fsl_ifc: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:11:32 +0000 (20:11 +0100)] 
mtd: nand: fsl_ifc: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: atmel: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:11:14 +0000 (20:11 +0100)] 
mtd: nand: atmel: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
8 years agomtd: nand: core: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:11:00 +0000 (20:11 +0100)] 
mtd: nand: core: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: use mtd_ooblayout_xxx() helpers where appropriate
Boris Brezillon [Wed, 3 Feb 2016 19:10:30 +0000 (20:10 +0100)] 
mtd: use mtd_ooblayout_xxx() helpers where appropriate

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: add mtd_ooblayout_xxx() helper functions
Boris Brezillon [Thu, 4 Feb 2016 08:52:30 +0000 (09:52 +0100)] 
mtd: add mtd_ooblayout_xxx() helper functions

In order to make the ecclayout definition completely dynamic we need to
rework the way the OOB layout are defined and iterated.

Create a few mtd_ooblayout_xxx() helpers to ease OOB bytes manipulation
and hide ecclayout internals to their users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: make cur_off parameter optional in extra oob helpers
Boris Brezillon [Fri, 4 Mar 2016 17:13:10 +0000 (18:13 +0100)] 
mtd: nand: sunxi: make cur_off parameter optional in extra oob helpers

Allow for NULL cur_offs values when the caller does not know where the
NAND page register pointer points to.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: make OOB retrieval optional
Boris Brezillon [Fri, 4 Mar 2016 17:09:21 +0000 (18:09 +0100)] 
mtd: nand: sunxi: make OOB retrieval optional

sunxi_nfc_hw_ecc_read_chunk() always retrieves the ECC and protected free
bytes, no matter if the user really asked for it or not. This can take a
non negligible amount of time, especially on NAND chips exposing large OOB
areas (> 1KB). Make it optional.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: move some ECC related operations to their own functions
Boris Brezillon [Fri, 4 Mar 2016 16:56:47 +0000 (17:56 +0100)] 
mtd: nand: sunxi: move some ECC related operations to their own functions

In order to support DMA operations in a clean way we need to extract some
of the logic coded in sunxi_nfc_hw_ecc_read/write_page() into their own
function.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: poll for events instead of using interrupts
Boris Brezillon [Mon, 7 Mar 2016 14:34:39 +0000 (15:34 +0100)] 
mtd: nand: sunxi: poll for events instead of using interrupts

Some NAND operations are so fast that it doesn't make any sense to use
interrupt based waits (the scheduling overhead is not worth it).
Rename sunxi_nfc_wait_int() into sunxi_nfc_wait_events() and add a
parameter to specify whether polling should be used or not.

Note that all sunxi_nfc_wait_int() are moved to the polling approach now,
but this should change as soon as we have more information about the
approximate time we are about to wait (can be extracted from the NAND
timings, and the type of operation).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: make use of readl_poll_timeout()
Boris Brezillon [Mon, 7 Mar 2016 14:25:17 +0000 (15:25 +0100)] 
mtd: nand: sunxi: make use of readl_poll_timeout()

Replace open coded polling loops by readl_poll_timeout() calls.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: fix ->dev_ready() implementation
Boris Brezillon [Mon, 7 Mar 2016 14:10:28 +0000 (15:10 +0100)] 
mtd: nand: sunxi: fix ->dev_ready() implementation

->dev_ready() is not supposed to wait for busy to ready solution (this is
the role of ->waitfunc()).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: enable ECC pipelining
Boris Brezillon [Fri, 4 Mar 2016 16:33:10 +0000 (17:33 +0100)] 
mtd: nand: enable ECC pipelining

When the NAND controller operates in DMA mode it can pipeline ECC
operations which improves the throughput.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: disable clks on device removal
Boris Brezillon [Fri, 4 Mar 2016 17:26:40 +0000 (18:26 +0100)] 
mtd: nand: sunxi: disable clks on device removal

mod and ahb clocks are not disabled when the NAND controller device is
removed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: fix NFC_CTL setting
Boris Brezillon [Fri, 4 Mar 2016 16:29:20 +0000 (17:29 +0100)] 
mtd: nand: sunxi: fix NFC_CTL setting

NFC_PAGE_SHIFT() already takes the real page_shift value and subtract 10
to it.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: fix the NFC_ECC_ERR_CNT() macro
Boris Brezillon [Fri, 4 Mar 2016 16:25:08 +0000 (17:25 +0100)] 
mtd: nand: sunxi: fix the NFC_ECC_ERR_CNT() macro

NFC_ECC_ERR_CNT() is not taking into account the case when the NAND chip
contains more than 4 ECC blocks (NANDs with 4kB+ pages).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: let the NAND controller control the CE line
Boris Brezillon [Fri, 4 Mar 2016 16:21:35 +0000 (17:21 +0100)] 
mtd: nand: sunxi: let the NAND controller control the CE line

We don't need to manually toggle the CE line since the controller handles
it for us. Moreover, keeping the CE line low when interacting with a DDR
NAND can be problematic (data loss in some corner cases).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: improve ->cmd_ctrl() function
Boris Brezillon [Wed, 16 Sep 2015 07:05:31 +0000 (09:05 +0200)] 
mtd: nand: sunxi: improve ->cmd_ctrl() function

Try to pack address and command cycles into a single NAND controller
command to avoid polling the status register for each single change
on the NAND bus.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: implement ->read_subpage()
Boris Brezillon [Wed, 16 Sep 2015 07:01:45 +0000 (09:01 +0200)] 
mtd: nand: sunxi: implement ->read_subpage()

Being able to read subpages can greatly improve read performances if the
MTD user is only interested in a small section of a NAND page.
This is particularly true with large pages (>= 8k).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: implement ->read_oob()/->write_oob()
Boris Brezillon [Wed, 2 Sep 2015 13:05:52 +0000 (15:05 +0200)] 
mtd: nand: sunxi: implement ->read_oob()/->write_oob()

Allwinner's ECC engine is capable of protecting a few bytes of the OOB
area. Implement specific OOB functions to benefit from this capability.

Also, when in raw mode, the randomizer is disabled, which means you'll
only be able to retrieve randomized data, which is not really useful
for most applications.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: export default read/write oob functions
Boris Brezillon [Wed, 26 Aug 2015 14:08:12 +0000 (16:08 +0200)] 
mtd: nand: export default read/write oob functions

Export the default read/write oob functions (for the standard and syndrome
scheme), so that drivers can use them for their raw implementation and
implement their own functions for the normal oob operation.

This is required if your ECC engine is capable of fixing some of the OOB
data. In this case you have to overload the ->read_oob() and ->write_oob(),
but if you don't specify the ->read/write_oob_raw() functions they are
assigned to the ->read/write_oob() implementation, which is not what you
want.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: adapt clk_rate to tWB, tADL, tWHR and tRHW timings
Boris Brezillon [Wed, 11 Nov 2015 21:30:30 +0000 (22:30 +0100)] 
mtd: nand: sunxi: adapt clk_rate to tWB, tADL, tWHR and tRHW timings

Adapt the NAND controller clk rate to the tWB, tADL, tWHR and tRHW
timings instead of returning an error when the maximum clk divisor is
not big enough to provide an appropriate timing.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: fix EDO mode selection
Boris Brezillon [Wed, 2 Dec 2015 14:57:20 +0000 (15:57 +0100)] 
mtd: nand: sunxi: fix EDO mode selection

The ONFI spec says that EDO should be enabled if the host drives tRC less
than 30ns, but the code just tests for the tRC_min value extracted from
the timings exposed by the NAND chip not the timings actually configured
in the NAND controller.
Fix that by first rounding down the requested clk_rate with
clk_round_rate() and then checking if tRC is actually smaller than 30ns.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: fix clk rate calculation
Boris Brezillon [Wed, 2 Dec 2015 14:10:40 +0000 (15:10 +0100)] 
mtd: nand: sunxi: fix clk rate calculation

Unlike what is specified in the Allwinner datasheets, the NAND clock rate
is not equal to 2/T but 1/T. Fix the clock rate selection accordingly.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: sunxi: fix call order in sunxi_nand_chip_init()
Boris Brezillon [Wed, 2 Dec 2015 15:00:57 +0000 (16:00 +0100)] 
mtd: nand: sunxi: fix call order in sunxi_nand_chip_init()

sunxi_nand_chip_set_timings() is extracting a pointer to the nfc from the
nand->controller field, but this field is initialized after
sunxi_nand_chip_set_timings() call.
Reorder the calls to avoid any problem.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: pxa3xx: rely on generic DT parsing done in nand_scan_ident()
Boris Brezillon [Fri, 1 Apr 2016 12:54:30 +0000 (14:54 +0200)] 
mtd: nand: pxa3xx: rely on generic DT parsing done in nand_scan_ident()

The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
8 years agomtd: nand: atmel: rely on generic DT parsing done in nand_scan_ident()
Boris Brezillon [Fri, 1 Apr 2016 12:54:22 +0000 (14:54 +0200)] 
mtd: nand: atmel: rely on generic DT parsing done in nand_scan_ident()

The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
8 years agomtd: nand: pasemi: switch to dev_* printing functions
Rafał Miłecki [Wed, 13 Apr 2016 09:48:05 +0000 (11:48 +0200)] 
mtd: nand: pasemi: switch to dev_* printing functions

It also contains some minor related changes:
1) Don't warn if kzalloc fails as it dumps stack on its own
2) Use %pR format for displaying whole resource to avoid invalid format
   warning

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: socrates: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:51 +0000 (12:23 +0200)] 
mtd: nand: socrates: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: plat: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:50 +0000 (12:23 +0200)] 
mtd: nand: plat: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: pasemi: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:49 +0000 (12:23 +0200)] 
mtd: nand: pasemi: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: orion: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:48 +0000 (12:23 +0200)] 
mtd: nand: orion: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: nuc900: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:47 +0000 (12:23 +0200)] 
mtd: nand: nuc900: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: mxc: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:46 +0000 (12:23 +0200)] 
mtd: nand: mxc: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: gpio: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:45 +0000 (12:23 +0200)] 
mtd: nand: gpio: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: ams-delta: set ECC algorithm explicitly
Rafał Miłecki [Fri, 8 Apr 2016 10:23:44 +0000 (12:23 +0200)] 
mtd: nand: ams-delta: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: brcm: rely on generic DT parsing done in nand_scan_ident()
Boris Brezillon [Fri, 1 Apr 2016 12:54:24 +0000 (14:54 +0200)] 
mtd: nand: brcm: rely on generic DT parsing done in nand_scan_ident()

The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
8 years agomtd: nand: omap2: rely on generic DT parsing done in nand_scan_ident()
Boris Brezillon [Tue, 19 Apr 2016 18:29:58 +0000 (20:29 +0200)] 
mtd: nand: omap2: rely on generic DT parsing done in nand_scan_ident()

The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Franklin S Cooper Jr. <fcooper@ti.com>
8 years agomtd: nand: remove unneeded of_mtd.h inclusions
Boris Brezillon [Fri, 1 Apr 2016 12:54:21 +0000 (14:54 +0200)] 
mtd: nand: remove unneeded of_mtd.h inclusions

Some drivers are including linux/of_mtd.h even if they don't use any of
the of_get_nand_xxx() helpers.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Harvey Hunt <harvey.hunt@imgtec.com>
8 years agomtd: nand: s3c2410: fix bug in s3c2410_nand_correct_data()
Zhaoxiu Zeng [Tue, 12 Apr 2016 07:30:35 +0000 (15:30 +0800)] 
mtd: nand: s3c2410: fix bug in s3c2410_nand_correct_data()

If there is only one bit difference in the ECC, the function should
return 1.
The result of "diff0 & ~(1<<fls(diff0))" is equal to diff0, so the
function actually returns -1.

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd/ifc: Add support for IFC controller version 2.0
Raghav Dogra [Wed, 17 Feb 2016 11:24:18 +0000 (16:54 +0530)] 
mtd/ifc: Add support for IFC controller version 2.0

The new IFC controller version 2.0 has a different memory map page.
Upto IFC 1.4 PAGE size is 4 KB and from IFC2.0 PAGE size is 64KB.
This patch segregates the IFC global and runtime registers to appropriate
PAGE sizes.

Signed-off-by: Jaiprakash Singh <b44839@freescale.com>
Signed-off-by: Raghav Dogra <raghav@freescale.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Raghav Dogra <raghav.dogra@nxp.com>
Acked-by: Scott Wood <oss@buserror.net>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: nand: Remove BUG() abuse in nand_scan_tail
Ezequiel García [Fri, 1 Apr 2016 21:29:24 +0000 (18:29 -0300)] 
mtd: nand: Remove BUG() abuse in nand_scan_tail

There's no reason to BUG() when parameters are being
validated. Drivers can get things wrong, and it's much nicer
to just throw a noisy warn and fail gracefully, than calling
BUG() and throwing the whole system down the drain.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: gpmi: fix raw_buffer pointer double free issue
Han Xu [Mon, 4 Apr 2016 20:41:29 +0000 (15:41 -0500)] 
mtd: gpmi: fix raw_buffer pointer double free issue

fix the raw_buffer pointer double free issue found by coverify.

CID 18344 (#2 of 2): Double free (USE_AFTER_FREE)
3. double_free: Calling gpmi_alloc_dma_buffer frees pointer
this->raw_buffer which has already been freed

Signed-off-by: Han Xu <han.xu@nxp.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 years agomtd: brcmnand: Add support for v6.2 controllers
Florian Fainelli [Thu, 10 Mar 2016 23:34:16 +0000 (15:34 -0800)] 
mtd: brcmnand: Add support for v6.2 controllers

Document and match the brcm,brcmnand-v6.2 compatible string, the controller has
a register layout identical to the v6.0 version and supports prefetch. Update the
command shift logic to account for v6.2 controller which are the first ones to
use a shift of 0 (6.1 used a shift of 24).

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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