mirror of https://github.com/hak5/openwrt.git
kernel: add bcm47xxpart patches sent for 4.5 merge window
This replaces old bcm53xx patch for scanning whole flash and makes bcm47xxpart compatible with NAND. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 47800lede-17.01
Rafał Miłecki
parent
e4fd0a41fd
commit
3333f75caf
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@ -1,31 +0,0 @@
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From d658c21d6697293a928434fd6ac19264b5a8948d Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Fri, 30 Jan 2015 08:25:54 +0100
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Subject: [PATCH] mtd: bcm47xxpart: scan whole flash on ARCH_BCM_5301X
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/mtd/bcm47xxpart.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -120,9 +120,15 @@ static int bcm47xxpart_parse(struct mtd_
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/* Parse block by block looking for magics */
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for (offset = 0; offset <= master->size - blocksize;
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offset += blocksize) {
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+#ifndef CONFIG_ARCH_BCM_5301X
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+ /*
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+ * ARM routers may have partitions in higher memory. E.g.
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+ * Netgear R8000 has board_data at 0x2600000.
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+ */
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/* Nothing more in higher memory */
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if (offset >= 0x2000000)
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break;
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+#endif
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if (curr_part >= BCM47XXPART_MAX_PARTS) {
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pr_warn("Reached maximum number of partitions, scanning stopped!\n");
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@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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#include <uapi/linux/magic.h>
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@@ -135,6 +136,17 @@ static int bcm47xxpart_parse(struct mtd_
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@@ -132,6 +133,17 @@ static int bcm47xxpart_parse(struct mtd_
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break;
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}
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@ -38,5 +38,5 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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+ }
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+
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/* Read beginning of the block */
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if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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&bytes_read, (uint8_t *)buf) < 0) {
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err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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&bytes_read, (uint8_t *)buf);
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@ -1,31 +0,0 @@
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From d658c21d6697293a928434fd6ac19264b5a8948d Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Fri, 30 Jan 2015 08:25:54 +0100
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Subject: [PATCH] mtd: bcm47xxpart: scan whole flash on ARCH_BCM_5301X
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/mtd/bcm47xxpart.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -120,9 +120,15 @@ static int bcm47xxpart_parse(struct mtd_
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/* Parse block by block looking for magics */
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for (offset = 0; offset <= master->size - blocksize;
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offset += blocksize) {
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+#ifndef CONFIG_ARCH_BCM_5301X
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+ /*
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+ * ARM routers may have partitions in higher memory. E.g.
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+ * Netgear R8000 has board_data at 0x2600000.
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+ */
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/* Nothing more in higher memory */
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if (offset >= 0x2000000)
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break;
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+#endif
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if (curr_part >= BCM47XXPART_MAX_PARTS) {
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pr_warn("Reached maximum number of partitions, scanning stopped!\n");
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@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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#include <uapi/linux/magic.h>
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@@ -135,6 +136,17 @@ static int bcm47xxpart_parse(struct mtd_
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@@ -132,6 +133,17 @@ static int bcm47xxpart_parse(struct mtd_
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break;
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}
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@ -38,5 +38,5 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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+ }
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+
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/* Read beginning of the block */
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if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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&bytes_read, (uint8_t *)buf) < 0) {
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err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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&bytes_read, (uint8_t *)buf);
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@ -1,31 +0,0 @@
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From d658c21d6697293a928434fd6ac19264b5a8948d Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Fri, 30 Jan 2015 08:25:54 +0100
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Subject: [PATCH] mtd: bcm47xxpart: scan whole flash on ARCH_BCM_5301X
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/mtd/bcm47xxpart.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -120,9 +120,15 @@ static int bcm47xxpart_parse(struct mtd_
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/* Parse block by block looking for magics */
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for (offset = 0; offset <= master->size - blocksize;
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offset += blocksize) {
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+#ifndef CONFIG_ARCH_BCM_5301X
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+ /*
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+ * ARM routers may have partitions in higher memory. E.g.
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+ * Netgear R8000 has board_data at 0x2600000.
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+ */
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/* Nothing more in higher memory */
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if (offset >= 0x2000000)
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break;
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+#endif
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if (curr_part >= BCM47XXPART_MAX_PARTS) {
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pr_warn("Reached maximum number of partitions, scanning stopped!\n");
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@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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#include <uapi/linux/magic.h>
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@@ -135,6 +136,17 @@ static int bcm47xxpart_parse(struct mtd_
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@@ -132,6 +133,17 @@ static int bcm47xxpart_parse(struct mtd_
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break;
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}
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@ -38,5 +38,5 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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+ }
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+
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/* Read beginning of the block */
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if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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&bytes_read, (uint8_t *)buf) < 0) {
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err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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&bytes_read, (uint8_t *)buf);
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@ -0,0 +1,33 @@
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Sat, 5 Dec 2015 02:03:32 +0100
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Subject: [PATCH] mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS)
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only
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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We allowed using bcm47xxpart on BCM5301X arch with commit:
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9e3afa5f5c7 ("mtd: bcm47xxpart: allow enabling on ARCH_BCM_5301X")
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BCM5301X devices may contain some partitions in higher memory, e.g.
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Netgear R8000 has board_data at 0x2600000. To detect them we should
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use size limit on MIPS only.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/mtd/bcm47xxpart.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -118,8 +118,8 @@ static int bcm47xxpart_parse(struct mtd_info *master,
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/* Parse block by block looking for magics */
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for (offset = 0; offset <= master->size - blocksize;
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offset += blocksize) {
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- /* Nothing more in higher memory */
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- if (offset >= 0x2000000)
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+ /* Nothing more in higher memory on BCM47XX (MIPS) */
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+ if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000)
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break;
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if (curr_part >= BCM47XXPART_MAX_PARTS) {
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@ -0,0 +1,97 @@
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From dfe4b4c732365fc1d83c2d2fd9cc18054ae850b7 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Sun, 6 Dec 2015 11:24:05 +0100
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Subject: [PATCH] mtd: bcm47xxpart: don't fail because of bit-flips
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Bit-flip errors may occur on NAND flashes and are harmless. Handle them
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gracefully as read content is still reliable and can be parsed.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/mtd/bcm47xxpart.c | 38 ++++++++++++++++++++++----------------
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1 file changed, 22 insertions(+), 16 deletions(-)
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diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
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index 4450e74..1ab3451 100644
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
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{
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uint32_t buf;
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size_t bytes_read;
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+ int err;
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- if (mtd_read(master, offset, sizeof(buf), &bytes_read,
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- (uint8_t *)&buf) < 0) {
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- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
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- offset);
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+ err = mtd_read(master, offset, sizeof(buf), &bytes_read,
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+ (uint8_t *)&buf);
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+ if (err && !mtd_is_bitflip(err)) {
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+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
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+ offset, err);
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goto out_default;
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}
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@@ -95,6 +97,7 @@ static int bcm47xxpart_parse(struct mtd_info *master,
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int trx_part = -1;
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int last_trx_part = -1;
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int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
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+ int err;
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/*
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* Some really old flashes (like AT45DB*) had smaller erasesize-s, but
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@@ -128,10 +131,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
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}
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/* Read beginning of the block */
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- if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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- &bytes_read, (uint8_t *)buf) < 0) {
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- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
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- offset);
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+ err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
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+ &bytes_read, (uint8_t *)buf);
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+ if (err && !mtd_is_bitflip(err)) {
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+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
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+ offset, err);
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continue;
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}
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@@ -254,10 +258,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
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}
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/* Read middle of the block */
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- if (mtd_read(master, offset + 0x8000, 0x4,
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- &bytes_read, (uint8_t *)buf) < 0) {
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- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
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- offset);
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+ err = mtd_read(master, offset + 0x8000, 0x4, &bytes_read,
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+ (uint8_t *)buf);
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+ if (err && !mtd_is_bitflip(err)) {
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+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
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+ offset, err);
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continue;
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}
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@@ -277,10 +282,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
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}
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offset = master->size - possible_nvram_sizes[i];
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- if (mtd_read(master, offset, 0x4, &bytes_read,
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- (uint8_t *)buf) < 0) {
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- pr_err("mtd_read error while reading at offset 0x%X!\n",
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- offset);
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+ err = mtd_read(master, offset, 0x4, &bytes_read,
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+ (uint8_t *)buf);
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+ if (err && !mtd_is_bitflip(err)) {
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+ pr_err("mtd_read error while reading (offset 0x%X): %d\n",
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+ offset, err);
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continue;
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}
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--
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1.8.4.5
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@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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#define CFE_MAGIC 0x43464531 /* 1EFC */
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#define FACTORY_MAGIC 0x59544346 /* FCTY */
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#define NVRAM_HEADER 0x48534C46 /* FLSH */
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@@ -262,7 +263,8 @@ static int bcm47xxpart_parse(struct mtd_
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@@ -267,7 +268,8 @@ static int bcm47xxpart_parse(struct mtd_
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}
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/* Some devices (ex. WNDR3700v3) don't have a standard 'MPFR' */
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@ -24,7 +24,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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#define ML_MAGIC1 0x39685a42
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#define ML_MAGIC2 0x26594131
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#define TRX_MAGIC 0x30524448
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@@ -176,6 +177,15 @@ static int bcm47xxpart_parse(struct mtd_
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@@ -180,6 +181,15 @@ static int bcm47xxpart_parse(struct mtd_
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MTD_WRITEABLE);
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continue;
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}
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@ -0,0 +1,33 @@
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Sat, 5 Dec 2015 02:03:32 +0100
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Subject: [PATCH] mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS)
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only
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
|
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Content-Transfer-Encoding: 8bit
|
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|
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We allowed using bcm47xxpart on BCM5301X arch with commit:
|
||||
9e3afa5f5c7 ("mtd: bcm47xxpart: allow enabling on ARCH_BCM_5301X")
|
||||
|
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BCM5301X devices may contain some partitions in higher memory, e.g.
|
||||
Netgear R8000 has board_data at 0x2600000. To detect them we should
|
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use size limit on MIPS only.
|
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|
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
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---
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drivers/mtd/bcm47xxpart.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -118,8 +118,8 @@ static int bcm47xxpart_parse(struct mtd_info *master,
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/* Parse block by block looking for magics */
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for (offset = 0; offset <= master->size - blocksize;
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offset += blocksize) {
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- /* Nothing more in higher memory */
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- if (offset >= 0x2000000)
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+ /* Nothing more in higher memory on BCM47XX (MIPS) */
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+ if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000)
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break;
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if (curr_part >= BCM47XXPART_MAX_PARTS) {
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@ -0,0 +1,97 @@
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From dfe4b4c732365fc1d83c2d2fd9cc18054ae850b7 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Sun, 6 Dec 2015 11:24:05 +0100
|
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Subject: [PATCH] mtd: bcm47xxpart: don't fail because of bit-flips
|
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MIME-Version: 1.0
|
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Content-Type: text/plain; charset=UTF-8
|
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Content-Transfer-Encoding: 8bit
|
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|
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Bit-flip errors may occur on NAND flashes and are harmless. Handle them
|
||||
gracefully as read content is still reliable and can be parsed.
|
||||
|
||||
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
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---
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drivers/mtd/bcm47xxpart.c | 38 ++++++++++++++++++++++----------------
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1 file changed, 22 insertions(+), 16 deletions(-)
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diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
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index 4450e74..1ab3451 100644
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
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{
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uint32_t buf;
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size_t bytes_read;
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+ int err;
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- if (mtd_read(master, offset, sizeof(buf), &bytes_read,
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- (uint8_t *)&buf) < 0) {
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- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
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- offset);
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+ err = mtd_read(master, offset, sizeof(buf), &bytes_read,
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+ (uint8_t *)&buf);
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+ if (err && !mtd_is_bitflip(err)) {
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+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
goto out_default;
|
||||
}
|
||||
|
||||
@@ -95,6 +97,7 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
int trx_part = -1;
|
||||
int last_trx_part = -1;
|
||||
int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
|
||||
+ int err;
|
||||
|
||||
/*
|
||||
* Some really old flashes (like AT45DB*) had smaller erasesize-s, but
|
||||
@@ -128,10 +131,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
/* Read beginning of the block */
|
||||
- if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
|
||||
- &bytes_read, (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
|
||||
+ &bytes_read, (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
@@ -254,10 +258,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
/* Read middle of the block */
|
||||
- if (mtd_read(master, offset + 0x8000, 0x4,
|
||||
- &bytes_read, (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset + 0x8000, 0x4, &bytes_read,
|
||||
+ (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
@@ -277,10 +282,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
offset = master->size - possible_nvram_sizes[i];
|
||||
- if (mtd_read(master, offset, 0x4, &bytes_read,
|
||||
- (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while reading at offset 0x%X!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, 0x4, &bytes_read,
|
||||
+ (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while reading (offset 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
--
|
||||
1.8.4.5
|
||||
|
||||
|
|
@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
#define CFE_MAGIC 0x43464531 /* 1EFC */
|
||||
#define FACTORY_MAGIC 0x59544346 /* FCTY */
|
||||
#define NVRAM_HEADER 0x48534C46 /* FLSH */
|
||||
@@ -262,7 +263,8 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
@@ -267,7 +268,8 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
}
|
||||
|
||||
/* Some devices (ex. WNDR3700v3) don't have a standard 'MPFR' */
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
#define ML_MAGIC1 0x39685a42
|
||||
#define ML_MAGIC2 0x26594131
|
||||
#define TRX_MAGIC 0x30524448
|
||||
@@ -176,6 +177,15 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
@@ -180,6 +181,15 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
MTD_WRITEABLE);
|
||||
continue;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,33 @@
|
|||
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
||||
Date: Sat, 5 Dec 2015 02:03:32 +0100
|
||||
Subject: [PATCH] mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS)
|
||||
only
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
We allowed using bcm47xxpart on BCM5301X arch with commit:
|
||||
9e3afa5f5c7 ("mtd: bcm47xxpart: allow enabling on ARCH_BCM_5301X")
|
||||
|
||||
BCM5301X devices may contain some partitions in higher memory, e.g.
|
||||
Netgear R8000 has board_data at 0x2600000. To detect them we should
|
||||
use size limit on MIPS only.
|
||||
|
||||
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
||||
---
|
||||
drivers/mtd/bcm47xxpart.c | 4 ++--
|
||||
1 file changed, 2 insertions(+), 2 deletions(-)
|
||||
|
||||
--- a/drivers/mtd/bcm47xxpart.c
|
||||
+++ b/drivers/mtd/bcm47xxpart.c
|
||||
@@ -118,8 +118,8 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
/* Parse block by block looking for magics */
|
||||
for (offset = 0; offset <= master->size - blocksize;
|
||||
offset += blocksize) {
|
||||
- /* Nothing more in higher memory */
|
||||
- if (offset >= 0x2000000)
|
||||
+ /* Nothing more in higher memory on BCM47XX (MIPS) */
|
||||
+ if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000)
|
||||
break;
|
||||
|
||||
if (curr_part >= BCM47XXPART_MAX_PARTS) {
|
||||
|
|
@ -0,0 +1,97 @@
|
|||
From dfe4b4c732365fc1d83c2d2fd9cc18054ae850b7 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
||||
Date: Sun, 6 Dec 2015 11:24:05 +0100
|
||||
Subject: [PATCH] mtd: bcm47xxpart: don't fail because of bit-flips
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Bit-flip errors may occur on NAND flashes and are harmless. Handle them
|
||||
gracefully as read content is still reliable and can be parsed.
|
||||
|
||||
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
||||
---
|
||||
drivers/mtd/bcm47xxpart.c | 38 ++++++++++++++++++++++----------------
|
||||
1 file changed, 22 insertions(+), 16 deletions(-)
|
||||
|
||||
diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
|
||||
index 4450e74..1ab3451 100644
|
||||
--- a/drivers/mtd/bcm47xxpart.c
|
||||
+++ b/drivers/mtd/bcm47xxpart.c
|
||||
@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
|
||||
{
|
||||
uint32_t buf;
|
||||
size_t bytes_read;
|
||||
+ int err;
|
||||
|
||||
- if (mtd_read(master, offset, sizeof(buf), &bytes_read,
|
||||
- (uint8_t *)&buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, sizeof(buf), &bytes_read,
|
||||
+ (uint8_t *)&buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
goto out_default;
|
||||
}
|
||||
|
||||
@@ -95,6 +97,7 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
int trx_part = -1;
|
||||
int last_trx_part = -1;
|
||||
int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
|
||||
+ int err;
|
||||
|
||||
/*
|
||||
* Some really old flashes (like AT45DB*) had smaller erasesize-s, but
|
||||
@@ -128,10 +131,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
/* Read beginning of the block */
|
||||
- if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
|
||||
- &bytes_read, (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
|
||||
+ &bytes_read, (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
@@ -254,10 +258,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
/* Read middle of the block */
|
||||
- if (mtd_read(master, offset + 0x8000, 0x4,
|
||||
- &bytes_read, (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset + 0x8000, 0x4, &bytes_read,
|
||||
+ (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
@@ -277,10 +282,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
offset = master->size - possible_nvram_sizes[i];
|
||||
- if (mtd_read(master, offset, 0x4, &bytes_read,
|
||||
- (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while reading at offset 0x%X!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, 0x4, &bytes_read,
|
||||
+ (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while reading (offset 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
--
|
||||
1.8.4.5
|
||||
|
||||
|
|
@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
#define CFE_MAGIC 0x43464531 /* 1EFC */
|
||||
#define FACTORY_MAGIC 0x59544346 /* FCTY */
|
||||
#define NVRAM_HEADER 0x48534C46 /* FLSH */
|
||||
@@ -262,7 +263,8 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
@@ -267,7 +268,8 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
}
|
||||
|
||||
/* Some devices (ex. WNDR3700v3) don't have a standard 'MPFR' */
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
#define ML_MAGIC1 0x39685a42
|
||||
#define ML_MAGIC2 0x26594131
|
||||
#define TRX_MAGIC 0x30524448
|
||||
@@ -176,6 +177,15 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
@@ -180,6 +181,15 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
MTD_WRITEABLE);
|
||||
continue;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,33 @@
|
|||
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
||||
Date: Sat, 5 Dec 2015 02:03:32 +0100
|
||||
Subject: [PATCH] mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS)
|
||||
only
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
We allowed using bcm47xxpart on BCM5301X arch with commit:
|
||||
9e3afa5f5c7 ("mtd: bcm47xxpart: allow enabling on ARCH_BCM_5301X")
|
||||
|
||||
BCM5301X devices may contain some partitions in higher memory, e.g.
|
||||
Netgear R8000 has board_data at 0x2600000. To detect them we should
|
||||
use size limit on MIPS only.
|
||||
|
||||
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
||||
---
|
||||
drivers/mtd/bcm47xxpart.c | 4 ++--
|
||||
1 file changed, 2 insertions(+), 2 deletions(-)
|
||||
|
||||
--- a/drivers/mtd/bcm47xxpart.c
|
||||
+++ b/drivers/mtd/bcm47xxpart.c
|
||||
@@ -118,8 +118,8 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
/* Parse block by block looking for magics */
|
||||
for (offset = 0; offset <= master->size - blocksize;
|
||||
offset += blocksize) {
|
||||
- /* Nothing more in higher memory */
|
||||
- if (offset >= 0x2000000)
|
||||
+ /* Nothing more in higher memory on BCM47XX (MIPS) */
|
||||
+ if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000)
|
||||
break;
|
||||
|
||||
if (curr_part >= BCM47XXPART_MAX_PARTS) {
|
||||
|
|
@ -0,0 +1,97 @@
|
|||
From dfe4b4c732365fc1d83c2d2fd9cc18054ae850b7 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
||||
Date: Sun, 6 Dec 2015 11:24:05 +0100
|
||||
Subject: [PATCH] mtd: bcm47xxpart: don't fail because of bit-flips
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Bit-flip errors may occur on NAND flashes and are harmless. Handle them
|
||||
gracefully as read content is still reliable and can be parsed.
|
||||
|
||||
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
||||
---
|
||||
drivers/mtd/bcm47xxpart.c | 38 ++++++++++++++++++++++----------------
|
||||
1 file changed, 22 insertions(+), 16 deletions(-)
|
||||
|
||||
diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
|
||||
index 4450e74..1ab3451 100644
|
||||
--- a/drivers/mtd/bcm47xxpart.c
|
||||
+++ b/drivers/mtd/bcm47xxpart.c
|
||||
@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
|
||||
{
|
||||
uint32_t buf;
|
||||
size_t bytes_read;
|
||||
+ int err;
|
||||
|
||||
- if (mtd_read(master, offset, sizeof(buf), &bytes_read,
|
||||
- (uint8_t *)&buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, sizeof(buf), &bytes_read,
|
||||
+ (uint8_t *)&buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
goto out_default;
|
||||
}
|
||||
|
||||
@@ -95,6 +97,7 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
int trx_part = -1;
|
||||
int last_trx_part = -1;
|
||||
int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
|
||||
+ int err;
|
||||
|
||||
/*
|
||||
* Some really old flashes (like AT45DB*) had smaller erasesize-s, but
|
||||
@@ -128,10 +131,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
/* Read beginning of the block */
|
||||
- if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
|
||||
- &bytes_read, (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
|
||||
+ &bytes_read, (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
@@ -254,10 +258,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
/* Read middle of the block */
|
||||
- if (mtd_read(master, offset + 0x8000, 0x4,
|
||||
- &bytes_read, (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset + 0x8000, 0x4, &bytes_read,
|
||||
+ (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
@@ -277,10 +282,11 @@ static int bcm47xxpart_parse(struct mtd_info *master,
|
||||
}
|
||||
|
||||
offset = master->size - possible_nvram_sizes[i];
|
||||
- if (mtd_read(master, offset, 0x4, &bytes_read,
|
||||
- (uint8_t *)buf) < 0) {
|
||||
- pr_err("mtd_read error while reading at offset 0x%X!\n",
|
||||
- offset);
|
||||
+ err = mtd_read(master, offset, 0x4, &bytes_read,
|
||||
+ (uint8_t *)buf);
|
||||
+ if (err && !mtd_is_bitflip(err)) {
|
||||
+ pr_err("mtd_read error while reading (offset 0x%X): %d\n",
|
||||
+ offset, err);
|
||||
continue;
|
||||
}
|
||||
|
||||
--
|
||||
1.8.4.5
|
||||
|
||||
|
|
@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
#define CFE_MAGIC 0x43464531 /* 1EFC */
|
||||
#define FACTORY_MAGIC 0x59544346 /* FCTY */
|
||||
#define NVRAM_HEADER 0x48534C46 /* FLSH */
|
||||
@@ -262,7 +263,8 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
@@ -267,7 +268,8 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
}
|
||||
|
||||
/* Some devices (ex. WNDR3700v3) don't have a standard 'MPFR' */
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
#define ML_MAGIC1 0x39685a42
|
||||
#define ML_MAGIC2 0x26594131
|
||||
#define TRX_MAGIC 0x30524448
|
||||
@@ -176,6 +177,15 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
@@ -180,6 +181,15 @@ static int bcm47xxpart_parse(struct mtd_
|
||||
MTD_WRITEABLE);
|
||||
continue;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue