diff options
Diffstat (limited to 'recipes-kernel/linux/linux-yocto-tiny-kexecboot-3.10/patches/patches-mtd/collie-LH28F640BF.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-yocto-tiny-kexecboot-3.10/patches/patches-mtd/collie-LH28F640BF.patch | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/recipes-kernel/linux/linux-yocto-tiny-kexecboot-3.10/patches/patches-mtd/collie-LH28F640BF.patch b/recipes-kernel/linux/linux-yocto-tiny-kexecboot-3.10/patches/patches-mtd/collie-LH28F640BF.patch deleted file mode 100644 index 182e782..0000000 --- a/recipes-kernel/linux/linux-yocto-tiny-kexecboot-3.10/patches/patches-mtd/collie-LH28F640BF.patch +++ /dev/null @@ -1,131 +0,0 @@ -From 7485f38ec10b7474932edebc4f3db60a8e32097c Mon Sep 17 00:00:00 2001 -From: Andrea Adami <andrea.adami@gmail.com> -Date: Tue, 21 Jan 2014 00:51:26 +0100 -Subject: mtd: add support for Sharp LH28F640BF NOR chips - -Tested on Zaurus SL-5500 (Collie) 2x16 on 32 bit bus - -Buffer write fixes as seen in 2007 patch c/o -Anti Sullin <anti.sullin <at> artecdesign.ee> -http://comments.gmane.org/gmane.linux.ports.arm.kernel/36733 - -Signed-off-by: Andrea Adami <andrea.adami@gmail.com> ---- - drivers/mtd/chips/cfi_cmdset_0001.c | 66 +++++++++++++++++++++++++++++++++++++ - 1 file changed, 66 insertions(+) - -diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c -index 7751443..c3c0b41 100644 ---- a/drivers/mtd/chips/cfi_cmdset_0001.c -+++ b/drivers/mtd/chips/cfi_cmdset_0001.c -@@ -53,6 +53,11 @@ - /* Atmel chips */ - #define AT49BV640D 0x02de - #define AT49BV640DT 0x02db -+/* Sharp chips */ -+#define LH28F640BFHE_PTTL90 0x00b0 -+#define LH28F640BFHE_PBTL90 0x00b1 -+#define LH28F640BFHE_PTTL70A 0x00b2 -+#define LH28F640BFHE_PBTL70A 0x00b3 - - static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); - static int cfi_intelext_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); -@@ -259,6 +264,47 @@ static void fixup_st_m28w320cb(struct mtd_info *mtd) - (cfi->cfiq->EraseRegionInfo[1] & 0xffff0000) | 0x3e; - }; - -+static int is_LH28F640BF(struct cfi_private *cfi) -+{ -+ /* Sharp LH28F640BF Series */ -+ if (cfi->mfr == CFI_MFR_SHARP && ( -+ cfi->id == LH28F640BFHE_PTTL90 || cfi->id == LH28F640BFHE_PBTL90 || -+ cfi->id == LH28F640BFHE_PTTL70A || cfi->id == LH28F640BFHE_PBTL70A)) -+ return 1; -+ return 0; -+} -+ -+static void fixup_LH28F640BF(struct mtd_info *mtd) -+{ -+ struct map_info *map = mtd->priv; -+ struct cfi_private *cfi = map->fldrv_priv; -+ struct cfi_pri_intelext *extp = cfi->cmdset_priv; -+ -+ /* Reset the Partition Configuration Register on LH28F640BF -+ * to a single partition (PCRC = 0x000): PCRC is embedded into A0-A15. */ -+ if (is_LH28F640BF(cfi)) { -+ printk(KERN_INFO "Reset Partition Config. Register: 1 Partition of 4 planes\n" ); -+ map_write(map, CMD(0x60), 0); -+ map_write(map, CMD(0x04), 0); -+ /* NOTE: Sharp Extended Query reports the nr of hardware partitions -+ * with an offset of +3. Change of the PCR are not reflected. -+ * Keep the wrong reading (0) and let the code convert it to 1 */ -+ -+ /* Sharp LH28F640BF Series has been set to one partition -+ * so Simultaneous Operations are disabled */ -+ printk(KERN_WARNING "cfi_cmdset_0001: Simultaneous Operations disabled\n"); -+ extp->FeatureSupport &= ~512; -+ -+ /* To avoid issues with ubifs with concurrent erase-suspend -+ * we have to disable SuspendCmdSupport. -+ * The fixes described in "Micron TN-12-06: Adapting the -+ * Linux Kernel for P30, P33, and J3 Flash" do not help. */ -+ printk(KERN_WARNING "cfi_cmdset_0001: Suspend " -+ "erase on write disabled.\n"); -+ extp->SuspendCmdSupport &= ~1; -+ } -+} -+ - static void fixup_use_point(struct mtd_info *mtd) - { - struct map_info *map = mtd->priv; -@@ -310,6 +356,8 @@ static struct cfi_fixup cfi_fixup_table[] = { - { CFI_MFR_ST, 0x00ba, /* M28W320CT */ fixup_st_m28w320ct }, - { CFI_MFR_ST, 0x00bb, /* M28W320CB */ fixup_st_m28w320cb }, - { CFI_MFR_INTEL, CFI_ID_ANY, fixup_unlock_powerup_lock }, -+ { CFI_MFR_SHARP, CFI_ID_ANY, fixup_unlock_powerup_lock }, -+ { CFI_MFR_SHARP, CFI_ID_ANY, fixup_LH28F640BF }, - { 0, 0, NULL } - }; - -@@ -387,6 +435,12 @@ read_pri_intelext(struct map_info *map, __u16 adr) - if (extp->MinorVersion >= '3') { - int nb_parts, i; - -+ /* Sharp LH28F640BF query does not respect the nr of synch -+ * modes/fields. The value of "Synchronous mode read capability -+ * configuration" is 0 but 3 fields are reserved so the -+ * number of partitions is at offsets +3. Ignore, we have set PCR to 1. */ -+ /* if (is_LH28F640BF(cfi)) extra_size += 3; */ -+ - /* Number of hardware-partitions */ - extra_size += 1; - if (extp_size < sizeof(*extp) + extra_size) -@@ -656,6 +710,12 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd, - /* Burst Read info */ - offs += extp->extra[offs+1]+2; - -+ /* Sharp LH28F640BF query does not respect the nr of synch -+ * modes/fields. The value of "Synchronous mode read capability -+ * configuration" is 0 but 3 fields are reserved so the -+ * number of partitions is at offsets +3. Ignore, we have set PCR to 1. */ -+ /* if (is_LH28F640BF(cfi)) offs += 3; */ -+ - /* Number of partition regions */ - numregions = extp->extra[offs]; - offs += 1; -@@ -1654,6 +1714,12 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, - initial_adr = adr; - cmd_adr = adr & ~(wbufsize-1); - -+ /* Sharp LH28F640BF chips need the first address for the -+ * Page Buffer Program command. See Table 5 of -+ * LH28F320BF, LH28F640BF, LH28F128BF Series (Appendix FUM00701) -+ * Apparently some Intel Strataflash can be programmed this way as well */ -+ if (is_LH28F640BF(cfi)) cmd_adr = adr; -+ - /* Let's determine this according to the interleave only once */ - write_cmd = (cfi->cfiq->P_ID != P_ID_INTEL_PERFORMANCE) ? CMD(0xe8) : CMD(0xe9); - --- -1.8.1.5 - |