| 956b03e1 | 12-Apr-2013 |
Mike Dunn <mikedunn@newsguy.com> |
mtd: nand: add driver for diskonchip g4 nand flash
This patch adds a driver for the diskonchip G4 nand flash device. It is based
on the driver from the linux kernel.
This also includes a separate
mtd: nand: add driver for diskonchip g4 nand flash
This patch adds a driver for the diskonchip G4 nand flash device. It is based
on the driver from the linux kernel.
This also includes a separate SPL driver. A separate SPL driver is used because
the device operates in a different mode (reliable mode) when loading a boot
image, and also because the storage format of the boot image is different from
normal data (pages are stored redundantly). The SPL driver basically mimics how
a typical IPL reads data from the device. The special operating mode and
storage format are used to compensate for the fact that the IPL does not contain
the BCH ecc decoding algorithm (due to size constraints). Although the u-boot
SPL *could* use ecc, it operates like an IPL for the sake of simplicity and
uniformity, since the IPL and SPL share the task of loading the u-boot image.
As a side benefit, the SPL driver is very small.
[port from linux kernel 3.4 commit 570469f3bde7f71cc1ece07a18d54a05b6a8775d]
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
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| aa9e891c | 29-Oct-2012 |
Kim Phillips <kim.phillips@freescale.com> |
include/linux/stddef.h: avoid 'warning: preprocessor token offsetof redefined'
hack to avoid:
/opt/gcc-4.6.3-nolibc/powerpc-linux/bin/../lib/gcc/powerpc-linux/4.6.3/include/stddef.h:413:9: warning:
include/linux/stddef.h: avoid 'warning: preprocessor token offsetof redefined'
hack to avoid:
/opt/gcc-4.6.3-nolibc/powerpc-linux/bin/../lib/gcc/powerpc-linux/4.6.3/include/stddef.h:413:9: warning: preprocessor token offsetof redefined
u-boot/include/linux/stddef.h:20:9: this was the original definition
tried protecting with __KERNEL__, and #including compiler.h first.
Even tried include dir reordering to no avail:
+++ b/config.mk
@@ -194,7 +194,11 @@ OBJCFLAGS += --gap-fill=0xff
gccincdir := $(shell $(CC) -print-file-name=include)
CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
- -D__KERNEL__
+ -D__KERNEL__ \
+ -I $(gccincdir) \
+ -nostdinc
+
+# -isystem $(gccincdir) \
# Enable garbage collection of un-used sections for SPL
ifeq ($(CONFIG_SPL_BUILD),y)
@@ -227,8 +231,7 @@ CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
endif
CPPFLAGS += -I$(TOPDIR)/include
-CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
- -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
+CPPFLAGS += -fno-builtin -ffreestanding -pipe $(PLATFORM_CPPFLAGS)
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
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| 25b26ec6 | 29-Oct-2012 |
Kim Phillips <kim.phillips@freescale.com> |
include/linux/unaligned/generic.h: fix warning: preprocessor token __force redefined
include/linux/unaligned/generic.h:5:9: warning: preprocessor token __force redefined
include/linux/compiler.h:10:
include/linux/unaligned/generic.h: fix warning: preprocessor token __force redefined
include/linux/unaligned/generic.h:5:9: warning: preprocessor token __force redefined
include/linux/compiler.h:10:10: this was the original definition
fixup __force definitions in compat.h code appears to be placed
there as a cover up from a code import from linux when u-boot didn't yet
have a compiler.h, introduced by commit
b1b4e89a0f3b75854c39a62cae41bad56d210adf "Add LZO decompressor support".
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
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| 0d4c1c91 | 29-Oct-2012 |
Kim Phillips <kim.phillips@freescale.com> |
include/linux/compat.h: fix warning: preprocessor token {__iomem, __user} redefined
include/linux/compat.h:4:9: warning: preprocessor token __user redefined
include/linux/compiler.h:7:10: this was t
include/linux/compat.h: fix warning: preprocessor token {__iomem, __user} redefined
include/linux/compat.h:4:9: warning: preprocessor token __user redefined
include/linux/compiler.h:7:10: this was the original definition
include/linux/compat.h:5:9: warning: preprocessor token __iomem redefined
include/linux/compiler.h:12:10: this was the original definition
fixup __iomem, __user definitions in compat.h code appears to be placed
there as a cover up from a code import from linux when u-boot didn't yet
have a compiler.h, introduced by commit
932394ac43e2e778e664eeb6e456fecd0fae6e59 "Rewrite of NAND code based on
what is in 2.6.12 Linux kernel".
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
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| 9c790a74 | 30-Aug-2012 |
Marek Vasut <marex@denx.de> |
mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver
This is based on Linux kernel -next:
commit 14f44abf1dafc20ba42ce8616a8fc8fbd1b3712b
Author: Brian Norris <computersforpeace@gmail.com>
mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver
This is based on Linux kernel -next:
commit 14f44abf1dafc20ba42ce8616a8fc8fbd1b3712b
Author: Brian Norris <computersforpeace@gmail.com>
Date: Fri Jul 13 09:28:24 2012 -0700
mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver
The NAND_CHIPOPTIONS_MSK has limited utility and is causing real bugs. It
silently masks off at least one flag that might be set by the driver
(NAND_NO_SUBPAGE_WRITE). This breaks the GPMI NAND driver and possibly
others.
Really, as long as driver writers exercise a small amount of care with
NAND_* options, this mask is not necessary at all; it was only here to
prevent certain options from accidentally being set by the driver. But the
original thought turns out to be a bad idea occasionally. Thus, kill it.
Note, this patch fixes some major gpmi-nand breakage.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
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