bcm63xx: switch to upstream NAND patches

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

target/linux/bcm63xx/patches-5.4/020-v5.8-mtd-rawnand-brcmnand-fix-hamming-oob-layout.patch

@@ -0,0 +1,40 @@
+From 130bbde4809b011faf64f99dddc14b4b01f440c3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Tue, 12 May 2020 09:57:32 +0200
+Subject: [PATCH] mtd: rawnand: brcmnand: fix hamming oob layout
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+First 2 bytes are used in large-page nand.
+
+Fixes: ef5eeea6e911 ("mtd: nand: brcm: switch to mtd_ooblayout_ops")
+Cc: stable@vger.kernel.org
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200512075733.745374-2-noltari@gmail.com
+---
+ drivers/mtd/nand/raw/brcmnand/brcmnand.c | 11 +++++++----
+ 1 file changed, 7 insertions(+), 4 deletions(-)
+
+--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
++++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+@@ -1019,11 +1019,14 @@ static int brcmnand_hamming_ooblayout_fr
+ 		if (!section) {
+ 			/*
+ 			 * Small-page NAND use byte 6 for BBI while large-page
+-			 * NAND use byte 0.
++			 * NAND use bytes 0 and 1.
+ 			 */
+-			if (cfg->page_size > 512)
+-				oobregion->offset++;
+-			oobregion->length--;
++			if (cfg->page_size > 512) {
++				oobregion->offset += 2;
++				oobregion->length -= 2;
++			} else {
++				oobregion->length--;
++			}
+ 		}
+ 	}
+ 

target/linux/bcm63xx/patches-5.4/021-v5.8-mtd-rawnand-brcmnand-improve-hamming-oob-layout.patch

@@ -1,3 +1,43 @@
+From d00358d7a1c50718232799e1ee10955bcd73795a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Tue, 12 May 2020 09:57:33 +0200
+Subject: [PATCH] mtd: rawnand: brcmnand: improve hamming oob layout
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The current code generates 8 oob sections:
+S1	1-5
+ECC	6-8
+S2	9-15
+S3	16-21
+ECC	22-24
+S4	25-31
+S5	32-37
+ECC	38-40
+S6	41-47
+S7	48-53
+ECC	54-56
+S8	57-63
+
+Change it by merging continuous sections:
+S1	1-5
+ECC	6-8
+S2	9-21
+ECC	22-24
+S3	25-37
+ECC	38-40
+S4	41-53
+ECC	54-56
+S5	57-63
+
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200512075733.745374-3-noltari@gmail.com
+---
+ drivers/mtd/nand/raw/brcmnand/brcmnand.c | 35 +++++++++++-------------
+ 1 file changed, 16 insertions(+), 19 deletions(-)
+
 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 @@ -1003,33 +1003,30 @@ static int brcmnand_hamming_ooblayout_fr

target/linux/bcm63xx/patches-5.4/022-v5.8-mtd-rawnand-brcmnand-correctly-verify-erased-pages.patch

@@ -1,3 +1,24 @@
+From dcb351c03f2fa6a599de1061b174167e03ee312b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Tue, 12 May 2020 10:24:51 +0200
+Subject: [PATCH] mtd: rawnand: brcmnand: correctly verify erased pages
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The current code checks that the whole OOB area is erased.
+This is a problem when JFFS2 cleanmarkers are added to the OOB, since it will
+fail due to the usable OOB bytes not being 0xff.
+Correct this by only checking that data and ECC bytes aren't 0xff.
+
+Fixes: 02b88eea9f9c ("mtd: brcmnand: Add check for erased page bitflips")
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200512082451.771212-1-noltari@gmail.com
+---
+ drivers/mtd/nand/raw/brcmnand/brcmnand.c | 19 +++++++++++--------
+ 1 file changed, 11 insertions(+), 8 deletions(-)
+
 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 @@ -1787,28 +1787,31 @@ static int brcmnand_read_by_pio(struct m

target/linux/bcm63xx/patches-5.4/023-v5.8-mtd-rawnand-brcmnand-rename-v4-registers.patch

@@ -1,3 +1,22 @@
+From 4fd639092b17d4252368b6009573339aeab5c7bd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Fri, 22 May 2020 14:15:20 +0200
+Subject: [PATCH] mtd: rawnand: brcmnand: rename v4 registers
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+These registers are also used on v3.3.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Acked-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-2-noltari@gmail.com
+---
+ drivers/mtd/nand/raw/brcmnand/brcmnand.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 @@ -269,8 +269,8 @@ enum brcmnand_reg {

target/linux/bcm63xx/patches-5.4/024-v5.8-mtd-rawnand-brcmnand-fix-CS0-layout.patch

@@ -0,0 +1,34 @@
+From 3d3fb3c5be9ce07fa85d8f67fb3922e4613b955b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Fri, 22 May 2020 14:15:21 +0200
+Subject: [PATCH] mtd: rawnand: brcmnand: fix CS0 layout
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Only v3.3-v5.0 have a different CS0 layout.
+Controllers before v3.3 use the same layout for every CS.
+
+Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Acked-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-3-noltari@gmail.com
+---
+ drivers/mtd/nand/raw/brcmnand/brcmnand.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
++++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+@@ -537,8 +537,9 @@ static int brcmnand_revision_init(struct
+ 	} else {
+ 		ctrl->cs_offsets = brcmnand_cs_offsets;
+ 
+-		/* v5.0 and earlier has a different CS0 offset layout */
+-		if (ctrl->nand_version <= 0x0500)
++		/* v3.3-5.0 have a different CS0 offset layout */
++		if (ctrl->nand_version >= 0x0303 &&
++		    ctrl->nand_version <= 0x0500)
+ 			ctrl->cs0_offsets = brcmnand_cs_offsets_cs0;
+ 	}
+ 

target/linux/bcm63xx/patches-5.4/025-v5.8-mtd-rawnand-brcmnand-rename-page-sizes.patch

@@ -1,3 +1,21 @@
+From eeeac9cbc4ca5b8c245972f3a765d1cb5b7ef038 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Fri, 22 May 2020 14:15:22 +0200
+Subject: [PATCH] mtd: rawnand: brcmnand: rename page sizes
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Current pages sizes apply to controllers after v3.4
+
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Acked-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-4-noltari@gmail.com
+---
+ drivers/mtd/nand/raw/brcmnand/brcmnand.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 @@ -502,7 +502,7 @@ static int brcmnand_revision_init(struct

target/linux/bcm63xx/patches-5.4/026-v5.8-mtd-rawnand-brcmnand-support-v2.1-v2.2-controllers.patch

@@ -1,3 +1,22 @@
+From 7e7c7df5d50fe06469be106967fc5b5d62be8868 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Fri, 22 May 2020 14:15:24 +0200
+Subject: [PATCH] mtd: rawnand: brcmnand: support v2.1-v2.2 controllers
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+v2.1: tested on Netgear DGND3700v1 (BCM6368)
+v2.2: tested on Netgear DGND3700v2 (BCM6362)
+
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Acked-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-6-noltari@gmail.com
+---
+ drivers/mtd/nand/raw/brcmnand/brcmnand.c | 85 +++++++++++++++++++++---
+ 1 file changed, 76 insertions(+), 9 deletions(-)
+
 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
 @@ -196,6 +196,7 @@ struct brcmnand_controller {

target/linux/bcm63xx/patches-5.4/436-mtd-rawnand-brcmnand-fix-hamming-oob-layout.patch

@@ -1,21 +0,0 @@
---- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
-+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
-@@ -1019,11 +1019,14 @@ static int brcmnand_hamming_ooblayout_fr
- 		if (!section) {
- 			/*
- 			 * Small-page NAND use byte 6 for BBI while large-page
--			 * NAND use byte 0.
-+			 * NAND use bytes 0 and 1.
- 			 */
--			if (cfg->page_size > 512)
--				oobregion->offset++;
--			oobregion->length--;
-+			if (cfg->page_size > 512) {
-+				oobregion->offset += 2;
-+				oobregion->length -= 2;
-+			} else {
-+				oobregion->length--;
-+			}
- 		}
- 	}
- 

target/linux/bcm63xx/patches-5.4/439-mtd-rawnand-brcmnand-fix-CS0-layout.patch

@@ -1,14 +0,0 @@
---- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
-+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
-@@ -537,8 +537,9 @@ static int brcmnand_revision_init(struct
- 	} else {
- 		ctrl->cs_offsets = brcmnand_cs_offsets;
- 
--		/* v5.0 and earlier has a different CS0 offset layout */
--		if (ctrl->nand_version <= 0x0500)
-+		/* v3.3-5.0 have a different CS0 offset layout */
-+		if (ctrl->nand_version >= 0x0303 &&
-+		    ctrl->nand_version <= 0x0500)
- 			ctrl->cs0_offsets = brcmnand_cs_offsets_cs0;
- 	}
-