1. make sure that page table setup is not done multiple times
2. flush_dcache_all() is more appropriate while disabling cache
than a range flush on the entire memory(flush_cache())
Provide a default implementation for flush_dcache_all()
for backward compatibility and to avoid build issues.
Signed-off-by: Aneesh V <aneesh@ti.com>
- Enable I-cache on bootup
- Enable MMU and D-cache immediately after relocation
- Do necessary initialization before enabling d-cache and MMU
- Changes to cleanup_before_linux()
- Make changes according to the new framework
Signed-off-by: Aneesh V <aneesh@ti.com>
Replace the cache related CONFIG flags with more meaningful
names. Following are the changes:
CONFIG_L2_OFF -> CONFIG_SYS_L2CACHE_OFF
CONFIG_SYS_NO_ICACHE -> CONFIG_SYS_ICACHE_OFF
CONFIG_SYS_NO_DCACHE -> CONFIG_SYS_DCACHE_OFF
Signed-off-by: Aneesh V <aneesh@ti.com>
V2:
* Changed CONFIG_L2_OFF -> CONFIG_SYS_NO_L2CACHE
V4:
* Changed all three flags to the final names suggested as above
and accordingly changed the commit message
- Add a framework for layered cache maintenance
- separate out SOC specific outer cache maintenance from
maintenance of caches known to CPU
- Add generic ARMv7 cache maintenance operations that affect all
caches known to ARMv7 CPUs. For instance in Cortex-A8 these
opertions will affect both L1 and L2 caches. In Cortex-A9
these will affect only L1 cache
- D-cache operations supported:
- Invalidate entire D-cache
- Invalidate D-cache range
- Flush(clean & invalidate) entire D-cache
- Flush D-cache range
- I-cache operations supported:
- Invalidate entire I-cache
- Add maintenance functions for TLB, branch predictor array etc.
- Enable -march=armv7-a so that armv7 assembly instructions can be
used
Signed-off-by: Aneesh V <aneesh@ti.com>
On MPC85xx based NAND_SPL builds we generate a u-boot-nand_spl.lds based
on output from preprocessor. We where never removed it.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch adds support for 16 bit NAND devices attached to the
NDFC on ppc4xx processors. Two config entries were added:
CONFIG_SYS_NDFC_16 - Setting this tells the NDFC that a
16 bit device is attached.
CONFIG_SYS_NDFC_EBC0_CFG - This is for the External Bus
Controller configuration register.
Also, a new ndfc_read_byte() function was added which does not
first convert the data to little endian.
The NAND SPL was also modified to do 16bit bad block testing
when a 16 bit chip is being used.
Signed-off-by: Alex Waterman <awaterman@dawning.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Add another nand write. variant, trimffs. This command will request of
nand_write_skip_bad() that all trailing all-0xff pages will be
dropped from eraseblocks when they are written to flash as-per the
reccommended behaviour of the UBI FAQ [1].
The function that implements this timming is the drop_ffs() function
by Artem Bityutskiy, ported from the mtd-utils tree.
[1] http://www.linux-mtd.infradead.org/doc/ubi.html#L_flasher_algo
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
CC: Artem Bityutskiy <dedekind1@gmail.com>
CC: Detlev Zundel <dzu@denx.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Add a flag to nand_read_skip_bad() such that if true, any trailing
pages in an eraseblock whose contents are entirely 0xff will be
dropped.
The implementation is via a new drop_ffs() function which is
based on the function of the same name from the ubiformat
utility by Artem Bityutskiy.
This is as-per the reccomendations of the UBI FAQ [1]
[1] http://www.linux-mtd.infradead.org/doc/ubi.html#L_flasher_algo
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
CC: Artem Bityutskiy <dedekind1@gmail.com>
Acked-by: Detlev Zundel <dzu@denx.de>
CC: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
When specified in the flags argument of nand_write, WITH_YAFFS_OOB causes an
operation which is mutually exclusive with the 'usual' way of writing.
Add a check that client code does not specify WITH_YAFFS_OOB along with any
other flags and add a comment indicating that the WITH_YAFFS_OOB flag should
not be mixed with other flags.
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
CC: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
In a future commit the behaviour of nand_write_skip_bad()
will be further extended.
Convert the only flag currently passed to the nand_write_
skip_bad() function to a bitfield of only one allocated
member. This should avoid an explosion of int's at the
end of the parameter list or the ambiguous calls like
nand_write_skip_bad(info, offset, len, buf, 0, 1, 1);
nand_write_skip_bad(info, offset, len, buf, 0, 1, 0);
Instead there will be:
nand_write_skip_bad(info, offset, len, buf, WITH_YAFFS_OOB |
WITH_OTHER);
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Acked-by: Detlev Zundel <dzu@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Replace an incorrect 'read' with 'write' in a comment.
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Acked-by: Detlev Zundel <dzu@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
I can't build test this, but just looking at the config files written
and it seems OK ...
Tested-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
For newer STM parts where CFI >= 1.1, there is a byte in the extended
structure that declares the flash layout type (just like the AMD parts),
so key off of that to find out when we need to reverse the geometry.
This can be seen with M29W640 parts where U-Boot does:
Bank # 1: CFI conformant FLASH (16 x 16) Size: 8 MB in 135 Sectors
AMD Standard command set, Manufacturer ID: 0x20, Device ID: 0x22ED
Erase timeout: 8192 ms, write timeout: 1 ms
Buffer write timeout: 1 ms, buffer size: 16 bytes
Sector Start Addresses:
20000000 RO 20002000 RO 20004000 RO 20006000 RO 20008000 RO
2000A000 RO 2000C000 RO 2000E000 RO 20010000 RO 20020000 RO
...
But Linux does:
physmap platform flash device: 00800000 at 20000000
physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank.
Manufacturer ID 0x000020 Chip ID 0x0022ed
physmap-flash.0: Swapping erase regions for top-boot CFI table.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Stefan Roese <sr@denx.de>
When dealing with non-multipoint devices, if the software root hub code
accepted the message, then we still need to process it normally. So only
return quickly when the root hub skipped the message or is otherwise in
an error state.
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* 'master' of git://git.denx.de/u-boot-arm:
run arm_pci_init after relocation
IXP42x PCI rewrite
update/fix PDNB3 board
update/fix IXDP425 / IXDPG425 boards
add dvlhost (dLAN 200 AV Wireless G) board
IXP NPE: add support for fixed-speed MII ports
update/fix AcTux4 board
update/fix AcTux3 board
update/fix AcTux2 board
update/fix AcTux1 board
use -ffunction-sections / --gc-sections on IXP42x
support CONFIG_SYS_LDSCRIPT on ARM
fix "depend" target in npe directory
Fix IXP code to work after relocation was added
trigger hardware watchdog in IXP42x serial driver
add support for IXP42x Rev. B1 and newer
add XScale sub architecture (IXP/PXA) to maintainer list
Conflicts:
arch/arm/lib/board.c
Signed-off-by: Wolfgang Denk <wd@denx.de>
clean up IXP PCI handling: get rid of IXP-private bus scan, BAR assign etc.
code and use u-boot's PCI infrastructure instead. Move board-specific PCI
setup code (clock/reset) to board directory.
Signed-off-by: Michael Schwingen <michael@schwingen.org>
- jump to real flash location after reset before turning off flash mirror
- fix timer system to use HZ == 1000, remove broken interrupt-based code
Signed-off-by: Michael Schwingen <michael@schwingen.org>
On Sunday, June 19, 2011 13:55:13 Ilya Yanok wrote:
> On 18.06.2011 23:03, Mike Frysinger wrote:
> >> - tools/Makefile put common/env_embedded.o and envcrc.o to object list
> >>
> >> conditionally. This fixes errors during dependency generation.
> >
> > pretty sure this breaks board builds. if the only thing this fixes is a
>
> I'm sorry but I can't see how this can break the builds. Could you
> please be more specific? I've tried to build some boards, it actually
> works...
i might be thinking of a different env_embedded situation. a different
problem with your patch to tools/Makefile: you copied the same logic multiple
times which means more bitrot.
why dont you do something like:
> > harmless warning when generating dependency files, then i say ignore it.
> > after all, this is how it has always worked in the past and no one really
> > cared.
>
> Yep, they are harmless but they are not warnings but rather scary errors
> actually. ;) I think it's better to fix them.
i guess my threshold for being scared is a bit higher :p
-mike
mkimage relies on autogenerated version so we need to move
$(VERSION_FILE) rule out of ifeq and make tools rule depend on it to be
able to run 'make tools' from the unconfigured tree.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
LDSCRIPT is used only from the top-level Makefile and only when the
system is configured so we can move LDSCRIPT and CONFIG_SYS_LDSCRIPT
related logic into the top level Makefile and under configured condition
to avoid errors when building tools from unconfigured tree.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
The 'trab' board configuration is broken, and there is nobody who is
interested and willing to fix it. Drop it.
This includes support for VFD displays which have always been used by
this board only.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This patch fixes following compile warning:
---8<---
macb.c: In function 'macb_write_hwaddr':
macb.c:525:2: warning: dereferencing type-punned pointer will break strict-aliasing rules
--->8---
Signed-off-by: Andreas Bießmann <andreas.devel@gmail.com>
This patch removes the warning
---8<---
at91_emac.c: In function 'at91emac_write_hwaddr':
at91_emac.c:487:2: warning: dereferencing type-punned pointer will break strict-aliasing rules
--->8---
Signed-off-by: Andreas Bießmann <andreas.devel@gmail.com>
Aneesh V