* [PATCH] driver/mtd/IFC: Add support of 8K page size NAND flash
@ 2013-09-24 11:11 Prabhakar Kushwaha
2013-10-21 3:33 ` Prabhakar Kushwaha
2013-10-23 16:43 ` Brian Norris
0 siblings, 2 replies; 4+ messages in thread
From: Prabhakar Kushwaha @ 2013-09-24 11:11 UTC (permalink / raw)
To: linux-mtd; +Cc: scottwood, Prabhakar Kushwaha, dedekind1
Current IFC driver supports till 4K page size NAND flash.
Add support of 8K Page size NAND flash
- Add nand_ecclayout for 4 bit & 8 bit ecc
- Defines constants
- also fix ecc.strength for 8bit ecc of 8K page size NAND
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
---
git://git.infradead.org/linux-mtd.git branch master
arch/powerpc/include/asm/fsl_ifc.h | 2 +
drivers/mtd/nand/fsl_ifc_nand.c | 77 ++++++++++++++++++++++++++++++++++++
2 files changed, 79 insertions(+)
diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/arch/powerpc/include/asm/fsl_ifc.h
index b8a4b9b..f49ddb1 100644
--- a/arch/powerpc/include/asm/fsl_ifc.h
+++ b/arch/powerpc/include/asm/fsl_ifc.h
@@ -93,6 +93,7 @@
#define CSOR_NAND_PGS_512 0x00000000
#define CSOR_NAND_PGS_2K 0x00080000
#define CSOR_NAND_PGS_4K 0x00100000
+#define CSOR_NAND_PGS_8K 0x00180000
/* Spare region Size */
#define CSOR_NAND_SPRZ_MASK 0x0000E000
#define CSOR_NAND_SPRZ_SHIFT 13
@@ -102,6 +103,7 @@
#define CSOR_NAND_SPRZ_210 0x00006000
#define CSOR_NAND_SPRZ_218 0x00008000
#define CSOR_NAND_SPRZ_224 0x0000A000
+#define CSOR_NAND_SPRZ_CSOR_EXT 0x0000C000
/* Pages Per Block */
#define CSOR_NAND_PB_MASK 0x00000700
#define CSOR_NAND_PB_SHIFT 8
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 317a771..a14885b 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -135,6 +135,69 @@ static struct nand_ecclayout oob_4096_ecc8 = {
.oobfree = { {2, 6}, {136, 82} },
};
+/* 8192-byte page size with 4-bit ECC */
+static struct nand_ecclayout oob_8192_ecc4 = {
+ .eccbytes = 128,
+ .eccpos = {
+ 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63,
+ 64, 65, 66, 67, 68, 69, 70, 71,
+ 72, 73, 74, 75, 76, 77, 78, 79,
+ 80, 81, 82, 83, 84, 85, 86, 87,
+ 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103,
+ 104, 105, 106, 107, 108, 109, 110, 111,
+ 112, 113, 114, 115, 116, 117, 118, 119,
+ 120, 121, 122, 123, 124, 125, 126, 127,
+ 128, 129, 130, 131, 132, 133, 134, 135,
+ },
+ .oobfree = { {2, 6}, {136, 208} },
+};
+
+/* 8192-byte page size with 8-bit ECC -- requires 218-byte OOB */
+static struct nand_ecclayout oob_8192_ecc8 = {
+ .eccbytes = 256,
+ .eccpos = {
+ 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63,
+ 64, 65, 66, 67, 68, 69, 70, 71,
+ 72, 73, 74, 75, 76, 77, 78, 79,
+ 80, 81, 82, 83, 84, 85, 86, 87,
+ 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103,
+ 104, 105, 106, 107, 108, 109, 110, 111,
+ 112, 113, 114, 115, 116, 117, 118, 119,
+ 120, 121, 122, 123, 124, 125, 126, 127,
+ 128, 129, 130, 131, 132, 133, 134, 135,
+ 136, 137, 138, 139, 140, 141, 142, 143,
+ 144, 145, 146, 147, 148, 149, 150, 151,
+ 152, 153, 154, 155, 156, 157, 158, 159,
+ 160, 161, 162, 163, 164, 165, 166, 167,
+ 168, 169, 170, 171, 172, 173, 174, 175,
+ 176, 177, 178, 179, 180, 181, 182, 183,
+ 184, 185, 186, 187, 188, 189, 190, 191,
+ 192, 193, 194, 195, 196, 197, 198, 199,
+ 200, 201, 202, 203, 204, 205, 206, 207,
+ 208, 209, 210, 211, 212, 213, 214, 215,
+ 216, 217, 218, 219, 220, 221, 222, 223,
+ 224, 225, 226, 227, 228, 229, 230, 231,
+ 232, 233, 234, 235, 236, 237, 238, 239,
+ 240, 241, 242, 243, 244, 245, 246, 247,
+ 248, 249, 250, 251, 252, 253, 254, 255,
+ 256, 257, 258, 259, 260, 261, 262, 263,
+ },
+ .oobfree = { {2, 6}, {264, 80} },
+};
/*
* Generic flash bbt descriptors
@@ -872,11 +935,25 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
} else {
layout = &oob_4096_ecc8;
chip->ecc.bytes = 16;
+ chip->ecc.strength = 8;
}
priv->bufnum_mask = 1;
break;
+ case CSOR_NAND_PGS_8K:
+ if ((csor & CSOR_NAND_ECC_MODE_MASK) ==
+ CSOR_NAND_ECC_MODE_4) {
+ layout = &oob_8192_ecc4;
+ } else {
+ layout = &oob_8192_ecc8;
+ chip->ecc.bytes = 16;
+ chip->ecc.strength = 8;
+ }
+
+ priv->bufnum_mask = 0;
+ break;
+
default:
dev_err(priv->dev, "bad csor %#x: bad page size\n", csor);
return -ENODEV;
--
1.7.9.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] driver/mtd/IFC: Add support of 8K page size NAND flash
2013-09-24 11:11 [PATCH] driver/mtd/IFC: Add support of 8K page size NAND flash Prabhakar Kushwaha
@ 2013-10-21 3:33 ` Prabhakar Kushwaha
2013-10-23 16:43 ` Brian Norris
1 sibling, 0 replies; 4+ messages in thread
From: Prabhakar Kushwaha @ 2013-10-21 3:33 UTC (permalink / raw)
To: Prabhakar Kushwaha, linux-mtd, dedekind1; +Cc: scottwood, dedekind1
Hi Artem ,
This patch is present in upstream review list from a long time.
There are no review comments.
So, I request you to pick this patch for linux-mtd.git repository.
Regards,
Prabhakar
On 09/24/2013 04:41 PM, Prabhakar Kushwaha wrote:
> Current IFC driver supports till 4K page size NAND flash.
> Add support of 8K Page size NAND flash
> - Add nand_ecclayout for 4 bit & 8 bit ecc
> - Defines constants
> - also fix ecc.strength for 8bit ecc of 8K page size NAND
>
> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
> ---
> git://git.infradead.org/linux-mtd.git branch master
>
> arch/powerpc/include/asm/fsl_ifc.h | 2 +
> drivers/mtd/nand/fsl_ifc_nand.c | 77 ++++++++++++++++++++++++++++++++++++
> 2 files changed, 79 insertions(+)
>
> diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/arch/powerpc/include/asm/fsl_ifc.h
> index b8a4b9b..f49ddb1 100644
> --- a/arch/powerpc/include/asm/fsl_ifc.h
> +++ b/arch/powerpc/include/asm/fsl_ifc.h
> @@ -93,6 +93,7 @@
> #define CSOR_NAND_PGS_512 0x00000000
> #define CSOR_NAND_PGS_2K 0x00080000
> #define CSOR_NAND_PGS_4K 0x00100000
> +#define CSOR_NAND_PGS_8K 0x00180000
> /* Spare region Size */
> #define CSOR_NAND_SPRZ_MASK 0x0000E000
> #define CSOR_NAND_SPRZ_SHIFT 13
> @@ -102,6 +103,7 @@
> #define CSOR_NAND_SPRZ_210 0x00006000
> #define CSOR_NAND_SPRZ_218 0x00008000
> #define CSOR_NAND_SPRZ_224 0x0000A000
> +#define CSOR_NAND_SPRZ_CSOR_EXT 0x0000C000
> /* Pages Per Block */
> #define CSOR_NAND_PB_MASK 0x00000700
> #define CSOR_NAND_PB_SHIFT 8
> diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
> index 317a771..a14885b 100644
> --- a/drivers/mtd/nand/fsl_ifc_nand.c
> +++ b/drivers/mtd/nand/fsl_ifc_nand.c
> @@ -135,6 +135,69 @@ static struct nand_ecclayout oob_4096_ecc8 = {
> .oobfree = { {2, 6}, {136, 82} },
> };
>
> +/* 8192-byte page size with 4-bit ECC */
> +static struct nand_ecclayout oob_8192_ecc4 = {
> + .eccbytes = 128,
> + .eccpos = {
> + 8, 9, 10, 11, 12, 13, 14, 15,
> + 16, 17, 18, 19, 20, 21, 22, 23,
> + 24, 25, 26, 27, 28, 29, 30, 31,
> + 32, 33, 34, 35, 36, 37, 38, 39,
> + 40, 41, 42, 43, 44, 45, 46, 47,
> + 48, 49, 50, 51, 52, 53, 54, 55,
> + 56, 57, 58, 59, 60, 61, 62, 63,
> + 64, 65, 66, 67, 68, 69, 70, 71,
> + 72, 73, 74, 75, 76, 77, 78, 79,
> + 80, 81, 82, 83, 84, 85, 86, 87,
> + 88, 89, 90, 91, 92, 93, 94, 95,
> + 96, 97, 98, 99, 100, 101, 102, 103,
> + 104, 105, 106, 107, 108, 109, 110, 111,
> + 112, 113, 114, 115, 116, 117, 118, 119,
> + 120, 121, 122, 123, 124, 125, 126, 127,
> + 128, 129, 130, 131, 132, 133, 134, 135,
> + },
> + .oobfree = { {2, 6}, {136, 208} },
> +};
> +
> +/* 8192-byte page size with 8-bit ECC -- requires 218-byte OOB */
> +static struct nand_ecclayout oob_8192_ecc8 = {
> + .eccbytes = 256,
> + .eccpos = {
> + 8, 9, 10, 11, 12, 13, 14, 15,
> + 16, 17, 18, 19, 20, 21, 22, 23,
> + 24, 25, 26, 27, 28, 29, 30, 31,
> + 32, 33, 34, 35, 36, 37, 38, 39,
> + 40, 41, 42, 43, 44, 45, 46, 47,
> + 48, 49, 50, 51, 52, 53, 54, 55,
> + 56, 57, 58, 59, 60, 61, 62, 63,
> + 64, 65, 66, 67, 68, 69, 70, 71,
> + 72, 73, 74, 75, 76, 77, 78, 79,
> + 80, 81, 82, 83, 84, 85, 86, 87,
> + 88, 89, 90, 91, 92, 93, 94, 95,
> + 96, 97, 98, 99, 100, 101, 102, 103,
> + 104, 105, 106, 107, 108, 109, 110, 111,
> + 112, 113, 114, 115, 116, 117, 118, 119,
> + 120, 121, 122, 123, 124, 125, 126, 127,
> + 128, 129, 130, 131, 132, 133, 134, 135,
> + 136, 137, 138, 139, 140, 141, 142, 143,
> + 144, 145, 146, 147, 148, 149, 150, 151,
> + 152, 153, 154, 155, 156, 157, 158, 159,
> + 160, 161, 162, 163, 164, 165, 166, 167,
> + 168, 169, 170, 171, 172, 173, 174, 175,
> + 176, 177, 178, 179, 180, 181, 182, 183,
> + 184, 185, 186, 187, 188, 189, 190, 191,
> + 192, 193, 194, 195, 196, 197, 198, 199,
> + 200, 201, 202, 203, 204, 205, 206, 207,
> + 208, 209, 210, 211, 212, 213, 214, 215,
> + 216, 217, 218, 219, 220, 221, 222, 223,
> + 224, 225, 226, 227, 228, 229, 230, 231,
> + 232, 233, 234, 235, 236, 237, 238, 239,
> + 240, 241, 242, 243, 244, 245, 246, 247,
> + 248, 249, 250, 251, 252, 253, 254, 255,
> + 256, 257, 258, 259, 260, 261, 262, 263,
> + },
> + .oobfree = { {2, 6}, {264, 80} },
> +};
>
> /*
> * Generic flash bbt descriptors
> @@ -872,11 +935,25 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
> } else {
> layout = &oob_4096_ecc8;
> chip->ecc.bytes = 16;
> + chip->ecc.strength = 8;
> }
>
> priv->bufnum_mask = 1;
> break;
>
> + case CSOR_NAND_PGS_8K:
> + if ((csor & CSOR_NAND_ECC_MODE_MASK) ==
> + CSOR_NAND_ECC_MODE_4) {
> + layout = &oob_8192_ecc4;
> + } else {
> + layout = &oob_8192_ecc8;
> + chip->ecc.bytes = 16;
> + chip->ecc.strength = 8;
> + }
> +
> + priv->bufnum_mask = 0;
> + break;
> +
> default:
> dev_err(priv->dev, "bad csor %#x: bad page size\n", csor);
> return -ENODEV;
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] driver/mtd/IFC: Add support of 8K page size NAND flash
2013-09-24 11:11 [PATCH] driver/mtd/IFC: Add support of 8K page size NAND flash Prabhakar Kushwaha
2013-10-21 3:33 ` Prabhakar Kushwaha
@ 2013-10-23 16:43 ` Brian Norris
2013-10-24 9:56 ` Prabhakar Kushwaha
1 sibling, 1 reply; 4+ messages in thread
From: Brian Norris @ 2013-10-23 16:43 UTC (permalink / raw)
To: Prabhakar Kushwaha; +Cc: scottwood, linux-mtd, dedekind1
On Tue, Sep 24, 2013 at 04:41:23PM +0530, Prabhakar Kushwaha wrote:
> Current IFC driver supports till 4K page size NAND flash.
> Add support of 8K Page size NAND flash
> - Add nand_ecclayout for 4 bit & 8 bit ecc
> - Defines constants
> - also fix ecc.strength for 8bit ecc of 8K page size NAND
>
> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
These ECC layouts are rather horrendous and large, but they're the best
we've got...
Pushed to l2-mtd.git with compile testing only. Let me know if there are
any Tested-by's (or NAK's).
Brian
> ---
> git://git.infradead.org/linux-mtd.git branch master
>
> arch/powerpc/include/asm/fsl_ifc.h | 2 +
> drivers/mtd/nand/fsl_ifc_nand.c | 77 ++++++++++++++++++++++++++++++++++++
> 2 files changed, 79 insertions(+)
>
> diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/arch/powerpc/include/asm/fsl_ifc.h
> index b8a4b9b..f49ddb1 100644
> --- a/arch/powerpc/include/asm/fsl_ifc.h
> +++ b/arch/powerpc/include/asm/fsl_ifc.h
> @@ -93,6 +93,7 @@
> #define CSOR_NAND_PGS_512 0x00000000
> #define CSOR_NAND_PGS_2K 0x00080000
> #define CSOR_NAND_PGS_4K 0x00100000
> +#define CSOR_NAND_PGS_8K 0x00180000
> /* Spare region Size */
> #define CSOR_NAND_SPRZ_MASK 0x0000E000
> #define CSOR_NAND_SPRZ_SHIFT 13
> @@ -102,6 +103,7 @@
> #define CSOR_NAND_SPRZ_210 0x00006000
> #define CSOR_NAND_SPRZ_218 0x00008000
> #define CSOR_NAND_SPRZ_224 0x0000A000
> +#define CSOR_NAND_SPRZ_CSOR_EXT 0x0000C000
> /* Pages Per Block */
> #define CSOR_NAND_PB_MASK 0x00000700
> #define CSOR_NAND_PB_SHIFT 8
> diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
> index 317a771..a14885b 100644
> --- a/drivers/mtd/nand/fsl_ifc_nand.c
> +++ b/drivers/mtd/nand/fsl_ifc_nand.c
> @@ -135,6 +135,69 @@ static struct nand_ecclayout oob_4096_ecc8 = {
> .oobfree = { {2, 6}, {136, 82} },
> };
>
> +/* 8192-byte page size with 4-bit ECC */
> +static struct nand_ecclayout oob_8192_ecc4 = {
> + .eccbytes = 128,
> + .eccpos = {
> + 8, 9, 10, 11, 12, 13, 14, 15,
> + 16, 17, 18, 19, 20, 21, 22, 23,
> + 24, 25, 26, 27, 28, 29, 30, 31,
> + 32, 33, 34, 35, 36, 37, 38, 39,
> + 40, 41, 42, 43, 44, 45, 46, 47,
> + 48, 49, 50, 51, 52, 53, 54, 55,
> + 56, 57, 58, 59, 60, 61, 62, 63,
> + 64, 65, 66, 67, 68, 69, 70, 71,
> + 72, 73, 74, 75, 76, 77, 78, 79,
> + 80, 81, 82, 83, 84, 85, 86, 87,
> + 88, 89, 90, 91, 92, 93, 94, 95,
> + 96, 97, 98, 99, 100, 101, 102, 103,
> + 104, 105, 106, 107, 108, 109, 110, 111,
> + 112, 113, 114, 115, 116, 117, 118, 119,
> + 120, 121, 122, 123, 124, 125, 126, 127,
> + 128, 129, 130, 131, 132, 133, 134, 135,
> + },
> + .oobfree = { {2, 6}, {136, 208} },
> +};
> +
> +/* 8192-byte page size with 8-bit ECC -- requires 218-byte OOB */
> +static struct nand_ecclayout oob_8192_ecc8 = {
> + .eccbytes = 256,
> + .eccpos = {
> + 8, 9, 10, 11, 12, 13, 14, 15,
> + 16, 17, 18, 19, 20, 21, 22, 23,
> + 24, 25, 26, 27, 28, 29, 30, 31,
> + 32, 33, 34, 35, 36, 37, 38, 39,
> + 40, 41, 42, 43, 44, 45, 46, 47,
> + 48, 49, 50, 51, 52, 53, 54, 55,
> + 56, 57, 58, 59, 60, 61, 62, 63,
> + 64, 65, 66, 67, 68, 69, 70, 71,
> + 72, 73, 74, 75, 76, 77, 78, 79,
> + 80, 81, 82, 83, 84, 85, 86, 87,
> + 88, 89, 90, 91, 92, 93, 94, 95,
> + 96, 97, 98, 99, 100, 101, 102, 103,
> + 104, 105, 106, 107, 108, 109, 110, 111,
> + 112, 113, 114, 115, 116, 117, 118, 119,
> + 120, 121, 122, 123, 124, 125, 126, 127,
> + 128, 129, 130, 131, 132, 133, 134, 135,
> + 136, 137, 138, 139, 140, 141, 142, 143,
> + 144, 145, 146, 147, 148, 149, 150, 151,
> + 152, 153, 154, 155, 156, 157, 158, 159,
> + 160, 161, 162, 163, 164, 165, 166, 167,
> + 168, 169, 170, 171, 172, 173, 174, 175,
> + 176, 177, 178, 179, 180, 181, 182, 183,
> + 184, 185, 186, 187, 188, 189, 190, 191,
> + 192, 193, 194, 195, 196, 197, 198, 199,
> + 200, 201, 202, 203, 204, 205, 206, 207,
> + 208, 209, 210, 211, 212, 213, 214, 215,
> + 216, 217, 218, 219, 220, 221, 222, 223,
> + 224, 225, 226, 227, 228, 229, 230, 231,
> + 232, 233, 234, 235, 236, 237, 238, 239,
> + 240, 241, 242, 243, 244, 245, 246, 247,
> + 248, 249, 250, 251, 252, 253, 254, 255,
> + 256, 257, 258, 259, 260, 261, 262, 263,
> + },
> + .oobfree = { {2, 6}, {264, 80} },
> +};
>
> /*
> * Generic flash bbt descriptors
> @@ -872,11 +935,25 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
> } else {
> layout = &oob_4096_ecc8;
> chip->ecc.bytes = 16;
> + chip->ecc.strength = 8;
> }
>
> priv->bufnum_mask = 1;
> break;
>
> + case CSOR_NAND_PGS_8K:
> + if ((csor & CSOR_NAND_ECC_MODE_MASK) ==
> + CSOR_NAND_ECC_MODE_4) {
> + layout = &oob_8192_ecc4;
> + } else {
> + layout = &oob_8192_ecc8;
> + chip->ecc.bytes = 16;
> + chip->ecc.strength = 8;
> + }
> +
> + priv->bufnum_mask = 0;
> + break;
> +
> default:
> dev_err(priv->dev, "bad csor %#x: bad page size\n", csor);
> return -ENODEV;
> --
> 1.7.9.5
>
>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] driver/mtd/IFC: Add support of 8K page size NAND flash
2013-10-23 16:43 ` Brian Norris
@ 2013-10-24 9:56 ` Prabhakar Kushwaha
0 siblings, 0 replies; 4+ messages in thread
From: Prabhakar Kushwaha @ 2013-10-24 9:56 UTC (permalink / raw)
To: Brian Norris; +Cc: scottwood, linux-mtd, dedekind1
On 10/23/2013 10:13 PM, Brian Norris wrote:
> On Tue, Sep 24, 2013 at 04:41:23PM +0530, Prabhakar Kushwaha wrote:
>> Current IFC driver supports till 4K page size NAND flash.
>> Add support of 8K Page size NAND flash
>> - Add nand_ecclayout for 4 bit & 8 bit ecc
>> - Defines constants
>> - also fix ecc.strength for 8bit ecc of 8K page size NAND
>>
>> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
> These ECC layouts are rather horrendous and large, but they're the best
> we've got...
>
> Pushed to l2-mtd.git with compile testing only. Let me know if there are
> any Tested-by's (or NAK's).
>
>
Thanks Brian for applying this patch to l2-mtd.git.
I only tested this patch.
This same patch has been pushed for review on u-boot mailing list. Till
now no comments.
means no NAK's :)
Regards,
Prabhakar
^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-09-24 11:11 [PATCH] driver/mtd/IFC: Add support of 8K page size NAND flash Prabhakar Kushwaha
2013-10-21 3:33 ` Prabhakar Kushwaha
2013-10-23 16:43 ` Brian Norris
2013-10-24 9:56 ` Prabhakar Kushwaha
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