diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0142-mtd-nand-pxa3xx-Add-bad-block-handling.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0142-mtd-nand-pxa3xx-Add-bad-block-handling.patch | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/target/linux/mvebu/patches-3.10/0142-mtd-nand-pxa3xx-Add-bad-block-handling.patch b/target/linux/mvebu/patches-3.10/0142-mtd-nand-pxa3xx-Add-bad-block-handling.patch deleted file mode 100644 index 0d04bf4..0000000 --- a/target/linux/mvebu/patches-3.10/0142-mtd-nand-pxa3xx-Add-bad-block-handling.patch +++ /dev/null @@ -1,108 +0,0 @@ -From bd428b9b18c2dffb8c9d737e99adfd145822e502 Mon Sep 17 00:00:00 2001 -From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> -Date: Thu, 14 Nov 2013 18:25:28 -0300 -Subject: [PATCH 142/203] mtd: nand: pxa3xx: Add bad block handling - -Add support for flash-based bad block table using Marvell's -custom in-flash bad block table layout. The support is enabled -a 'flash_bbt' platform data or device tree parameter. - -Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> -Tested-by: Daniel Mack <zonque@gmail.com> -Signed-off-by: Brian Norris <computersforpeace@gmail.com> ---- - .../devicetree/bindings/mtd/pxa3xx-nand.txt | 2 ++ - drivers/mtd/nand/pxa3xx_nand.c | 37 ++++++++++++++++++++++ - include/linux/platform_data/mtd-nand-pxa3xx.h | 3 ++ - 3 files changed, 42 insertions(+) - ---- a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt -+++ b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt -@@ -13,6 +13,8 @@ Optional properties: - - marvell,nand-keep-config: Set to keep the NAND controller config as set - by the bootloader - - num-cs: Number of chipselect lines to usw -+ - nand-on-flash-bbt: boolean to enable on flash bbt option if -+ not present false - - Example: - ---- a/drivers/mtd/nand/pxa3xx_nand.c -+++ b/drivers/mtd/nand/pxa3xx_nand.c -@@ -26,6 +26,7 @@ - #include <linux/slab.h> - #include <linux/of.h> - #include <linux/of_device.h> -+#include <linux/of_mtd.h> - - #if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP) - #define ARCH_HAS_DMA -@@ -241,6 +242,29 @@ static struct pxa3xx_nand_flash builtin_ - { "256MiB 16-bit", 0xba20, 64, 2048, 16, 16, 2048, &timing[3] }, - }; - -+static u8 bbt_pattern[] = {'M', 'V', 'B', 'b', 't', '0' }; -+static u8 bbt_mirror_pattern[] = {'1', 't', 'b', 'B', 'V', 'M' }; -+ -+static struct nand_bbt_descr bbt_main_descr = { -+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE -+ | NAND_BBT_2BIT | NAND_BBT_VERSION, -+ .offs = 8, -+ .len = 6, -+ .veroffs = 14, -+ .maxblocks = 8, /* Last 8 blocks in each chip */ -+ .pattern = bbt_pattern -+}; -+ -+static struct nand_bbt_descr bbt_mirror_descr = { -+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE -+ | NAND_BBT_2BIT | NAND_BBT_VERSION, -+ .offs = 8, -+ .len = 6, -+ .veroffs = 14, -+ .maxblocks = 8, /* Last 8 blocks in each chip */ -+ .pattern = bbt_mirror_pattern -+}; -+ - /* Define a default flash type setting serve as flash detecting only */ - #define DEFAULT_FLASH_TYPE (&builtin_flash_types[0]) - -@@ -1126,6 +1150,18 @@ KEEP_CONFIG: - - if (nand_scan_ident(mtd, 1, def)) - return -ENODEV; -+ -+ if (pdata->flash_bbt) { -+ /* -+ * We'll use a bad block table stored in-flash and don't -+ * allow writing the bad block marker to the flash. -+ */ -+ chip->bbt_options |= NAND_BBT_USE_FLASH | -+ NAND_BBT_NO_OOB_BBM; -+ chip->bbt_td = &bbt_main_descr; -+ chip->bbt_md = &bbt_mirror_descr; -+ } -+ - /* calculate addressing information */ - if (mtd->writesize >= 2048) - host->col_addr_cycles = 2; -@@ -1320,6 +1356,7 @@ static int pxa3xx_nand_probe_dt(struct p - if (of_get_property(np, "marvell,nand-keep-config", NULL)) - pdata->keep_config = 1; - of_property_read_u32(np, "num-cs", &pdata->num_cs); -+ pdata->flash_bbt = of_get_nand_on_flash_bbt(np); - - pdev->dev.platform_data = pdata; - ---- a/include/linux/platform_data/mtd-nand-pxa3xx.h -+++ b/include/linux/platform_data/mtd-nand-pxa3xx.h -@@ -55,6 +55,9 @@ struct pxa3xx_nand_platform_data { - /* indicate how many chip selects will be used */ - int num_cs; - -+ /* use an flash-based bad block table */ -+ bool flash_bbt; -+ - const struct mtd_partition *parts[NUM_CHIP_SELECT]; - unsigned int nr_parts[NUM_CHIP_SELECT]; - |