From: Andrea Adami <[email protected]> The collie used for development has unfortunately an hw flaw and the CFI table is missing on one NOR chip.
Further testings on other models are giving normal readings. Signed-off-by: Andrea Adami <[email protected]> --- .../linux/linux-yocto-3.10/collie/collie.scc | 1 - .../patches/patches-mtd/collie-match-cfi-qry.patch | 47 ---------------------- .../linux/linux-yocto-tiny-kexecboot_3.10.bbappend | 1 - 3 files changed, 49 deletions(-) delete mode 100644 recipes-kernel/linux/linux-yocto-3.10/patches/patches-mtd/collie-match-cfi-qry.patch diff --git a/recipes-kernel/linux/linux-yocto-3.10/collie/collie.scc b/recipes-kernel/linux/linux-yocto-3.10/collie/collie.scc index 9828877..e3f9c54 100644 --- a/recipes-kernel/linux/linux-yocto-3.10/collie/collie.scc +++ b/recipes-kernel/linux/linux-yocto-3.10/collie/collie.scc @@ -11,7 +11,6 @@ patch ../patches/patches-mtd/collie-eraseinfo.patch // for 3.12 patch ../patches/patches-mtd/collie-cfi-probe-again.patch patch ../patches/patches-mtd/collie-mtd-resize.patch -patch ../patches/patches-mtd/collie-match-cfi-qry.patch patch ../patches/patches-mtd/collie-LH28F640BF.patch patch ../patches/patches-sa1100/collie-irda.patch patch ../patches/patches-sa1100/collie-add-bootblock.patch diff --git a/recipes-kernel/linux/linux-yocto-3.10/patches/patches-mtd/collie-match-cfi-qry.patch b/recipes-kernel/linux/linux-yocto-3.10/patches/patches-mtd/collie-match-cfi-qry.patch deleted file mode 100644 index a315d93..0000000 --- a/recipes-kernel/linux/linux-yocto-3.10/patches/patches-mtd/collie-match-cfi-qry.patch +++ /dev/null @@ -1,47 +0,0 @@ -From 66ec11df6561d5ba7cdf41977af828a53ba6b99f Mon Sep 17 00:00:00 2001 -From: Andrea Adami <[email protected]> -Date: Sat, 1 Feb 2014 13:17:24 +0100 -Subject: [PATCH] mtd: cfi_util.c: force CFI detection of 2x LH28F640BF - -Signed-off-by: Andrea Adami <[email protected]> ---- - drivers/mtd/chips/cfi_util.c | 16 ++++++++++++++++ - 1 file changed, 16 insertions(+) - -diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c -index f992418..2c7a13d 100644 ---- a/drivers/mtd/chips/cfi_util.c -+++ b/drivers/mtd/chips/cfi_util.c -@@ -29,6 +29,7 @@ int __xipram cfi_qry_present(struct map_info *map, __u32 base, - int osf = cfi->interleave * cfi->device_type; /* scale factor */ - map_word val[3]; - map_word qry[3]; -+ unsigned long mask = (1 << (cfi->device_type * 8)) - 1; - - qry[0] = cfi_build_cmd('Q', map, cfi); - qry[1] = cfi_build_cmd('R', map, cfi); -@@ -38,6 +39,21 @@ int __xipram cfi_qry_present(struct map_info *map, __u32 base, - val[1] = map_read(map, base + osf*0x11); - val[2] = map_read(map, base + osf*0x12); - -+ /* Apparently only one of the 2 interleaved LH28F640BF 16 bit chips on -+ * a 32 bit wide bus is answering to the CFI Query. -+ * Using the expected map bankwidth=4 and chip interleave=2 we get wrong -+ * readings like 0xffff0051 instead of 0x00510051 etc. -+ * We take the valid bytes and recreate the expected answer as workaround. -+ */ -+ if (((val[0].x[0] >> (cfi->device_type * 8)) == mask) && -+ ((val[1].x[0] >> (cfi->device_type * 8)) == mask) && -+ ((val[2].x[0] >> (cfi->device_type * 8)) == mask)) -+ { -+ val[0].x[0] = (val[0].x[0] & mask) + ((val[0].x[0] & mask) << (cfi->device_type * 8)); -+ val[1].x[0] = (val[1].x[0] & mask) + ((val[1].x[0] & mask) << (cfi->device_type * 8)); -+ val[2].x[0] = (val[2].x[0] & mask) + ((val[2].x[0] & mask) << (cfi->device_type * 8)); -+ } -+ - if (!map_word_equal(map, qry[0], val[0])) - return 0; - --- -1.8.1.5 - diff --git a/recipes-kernel/linux/linux-yocto-tiny-kexecboot_3.10.bbappend b/recipes-kernel/linux/linux-yocto-tiny-kexecboot_3.10.bbappend index a6a7741..70d8a4a 100644 --- a/recipes-kernel/linux/linux-yocto-tiny-kexecboot_3.10.bbappend +++ b/recipes-kernel/linux/linux-yocto-tiny-kexecboot_3.10.bbappend @@ -50,7 +50,6 @@ SRC_URI_append_collie = " \ file://patches/patches-mtd/collie-eraseinfo.patch \ file://patches/patches-mtd/collie-cfi-probe-again.patch \ file://patches/patches-mtd/collie-mtd-resize.patch \ - file://patches/patches-mtd/collie-match-cfi-qry.patch \ file://patches/patches-mtd/collie-LH28F640BF.patch \ file://patches/patches-sa1100/collie-irda.patch \ file://patches/patches-sa1100/collie-add-bootblock.patch \ -- 1.9.1 -- _______________________________________________ Openembedded-devel mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-devel
