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59 Commits

Author SHA1 Message Date
Sascha Hauer 3aa5c839eb ARM: add missing call to arch_init_lowlevel
This got lost during the switch to implement the lowlevel
stuff in C.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-06-23 08:37:34 +02:00
Sascha Hauer 6d4ffe499f arch/arm/cpu/cpu.c: remove unused variable
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-06-17 08:46:27 +02:00
Sascha Hauer c21a7fb9f1 arm start.c: Make runtime function address calculation tolerant for more compilers
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-06-13 13:07:12 +02:00
Sascha Hauer ce971c2367 arm: use processor specififc functions to turn off MMU
The way it was done before does not work on Cortex processors.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Orjan Friberg <of@flatfrog.com>
Tested-by: Luca Ceresoli <list@lucaceresoli.net>
2010-06-10 14:20:39 +02:00
Sascha Hauer 78104ae181 arm: reimplement startup code in C
Lets translate the startup code to a language we all understand better.
Tested on pcm038 (arm v5) and pcm043 (arm v6).

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-05-03 15:05:38 +02:00
Sascha Hauer bd9e5ca89e arm: move __mmu_cache_flush to bare_init section
Instead of having seperate cache flush functions in the startup code
we want to call the generic functions. To accomplish this they have
to be in the bare_init section.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-05-03 15:05:38 +02:00
Sascha Hauer acbeeab989 ARM: update icache functions to use get_cr/set_cr
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-05-03 15:02:03 +02:00
Sascha Hauer 51b4009f3c ARM: use memalign in dma_alloc_coherent to assure alignment
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-05-03 15:02:03 +02:00
Sascha Hauer be00ed538c add l2x0 cache support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-03-30 14:15:04 +02:00
Sascha Hauer bcaabae0f6 ARM: Add a wrapper around dma_* functions
This is a preparation to add second level cache support.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-03-30 14:15:04 +02:00
Sascha Hauer cf2703a6fb ARM: replace cleanup_before_linux with the generic shutdown_barebox function
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-03-30 14:15:03 +02:00
Sascha Hauer 78127b0a97 remove unused file arch/arm/cpu/cache.S
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-03-18 08:14:03 +01:00
Sascha Hauer a5189af297 armv5: use proper cache flush function
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-03-18 08:12:19 +01:00
Marc Kleine-Budde 75478b15bf start-arm: cleanup: proper indention
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2010-02-16 21:49:29 +01:00
Marc Kleine-Budde d6f04bf3c8 arm/cpu/Makefile: cleanup: proper indention
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2010-02-16 21:49:18 +01:00
Sascha Hauer e304879aba add armv6 support to the konfig system
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-02-01 17:25:32 +01:00
Sascha Hauer 922bb41a47 remove typedef cmd_tbl_t and replace it with struct command
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-02-01 17:25:32 +01:00
Sascha Hauer 3f1bf1f058 Use cache functions from kernel
These cache functions have been extracted from
arch/arm/boot/compressed/head.S. The old code only worked
properly on ARMv4. Tested on ARMv4, ARMv5, ARMv6 hardware.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-02-01 17:23:40 +01:00
Juergen Beisert dac84c7b9d documentation updates
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-12-15 11:32:02 +01:00
Sascha Hauer a3ffa97f40 rename U-Boot-v2 project to barebox
This has been done with the following script:

find -path ./.git -prune -o -type f -print0 | xargs -0 -r sed -i \
	-e 's/u2boot/barebox/g' \
	-e 's/U2Boot/barebox/g' \
	-e 's/U-boot V2/barebox/g' \
	-e 's/u-boot v2/barebox/g' \
	-e 's/U-Boot V2/barebox/g' \
	-e 's/U-Boot-v2/barebox/g' \
	-e 's/U_BOOT/BAREBOX/g' \
	-e 's/UBOOT/BAREBOX/g' \
	-e 's/uboot/barebox/g' \
	-e 's/u-boot/barebox/g' \
	-e 's/u_boot/barebox/g' \
	-e 's/U-Boot/barebox/g' \
	-e 's/U-boot/barebox/g' \
	-e 's/U-BOOT/barebox/g'

find -path ./.git -prune -o \( -name "*u-boot*" -o -name "*uboot*" -o -name "*u_boot*" \) -print0 | \
	xargs -0 -r rename 's/u[-_]?boot/barebox/'

It needs some manual fixup following in the next patch

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-12-15 10:18:30 +01:00
Juergen Beisert f522d42597 Some doxygen related fixes
Nishanth Menon wrote:
> no signed off by and no diffstat?

Ups.

> can you use git-format-patch to send please? it is easier to review.

Sure. Here it comes:

jbe

------8<---------8<---------8<---------8<---------8<---------8<----

Subject: [PATCH] Some doxygen related fixes:
  - fix a few doxygen comments that are used in a wrong way
  - move some pages and their content to a better place in the
    generated documentation

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-12-14 09:43:02 +01:00
Jean-Christophe PLAGNIOL-VILLARD a4292fe7cf arm: add endian config support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-11-03 09:47:32 +01:00
Jean-Christophe PLAGNIOL-VILLARD bab3a3b976 arm: introduce CPU CONFIG from linux
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-11-03 09:45:55 +01:00
Sascha Hauer 420a3173f0 commands: remove maxargs
No need to check for maximum argument counts. The commands are
safe to be called with more arguments, so lets safe some bytes.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-10-19 16:18:33 +02:00
Sascha Hauer 3820307eb0 rename dma macros
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-09-25 13:34:57 +02:00
Sascha Hauer fd18bc87c2 use _stext instead of TEXT_BASE
When checking if we have to relocate ourselves, use _stext instead
of TEXT_BASE. TEXT_BASE might be the location of a pre image header.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-09-08 12:42:55 +02:00
Sascha Hauer e2c8e8a180 Add MMU support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-08-19 10:51:30 +02:00
Sascha Hauer 66457f42e4 return is not a function
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-08-18 15:44:53 +02:00
Sascha Hauer 0b5a776c1e Shutdown U-Boot before starting an OS
Some devices, especially the ones doing DMA should be disabled before
giving control to an OS. We take the simple approach here: Just shutdown
the devices in the reverse order they were activated.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-19 12:21:18 +01:00
Sascha Hauer a03d8b82df Fix Exception handling
Uh, oh, some copy paste bug which existed for nearly 2 years now

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-02-20 18:24:36 +01:00
Sascha Hauer 8d62c1f629 ARM: Add simple icache enable/disable command
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-02-06 14:44:46 +01:00
Sascha Hauer bee65f0d3f [ARM] Add MX35 support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-02-06 14:44:46 +01:00
Sascha Hauer b07e9e3194 ARM: Add cpuinfo command
This command is useful to show some information about
cp15 registers

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-01-13 14:32:22 +01:00
Sascha Hauer 3f65e8a398 ARM startup code: Whitespace changes
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-08-13 16:52:13 +02:00
Sascha Hauer c3be23d9a3 ARM startup: move exception handler to extra file
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-08-13 16:52:13 +02:00
Sascha Hauer 5fef327aaf remove start-intcm.S. it is currently unused and broken 2008-06-06 09:30:47 +02:00
Nishanth Menon 053034d182 010-OMAP-addbase
[Patch 10/17] U-Boot-V2:ARM:OMAP3: Add support for OMAP and Cortex A8

This patch adds support for OMAP3 platforms. Mainly to setup the infrastructure.
ARMV7 requires a different I/D cache cleanup code which is introduced in this patch

Signed-off-by: Nishanth Menon<x0nishan@ti.com>
2008-06-05 19:45:28 +02:00
Nishanth Menon 9a364f5157 001-arch-config
[Patch 01/17][Try 3] U-Boot-V2: ARM: Add ARCH lowlevel Init

This Patch adds CONFIG_ARCH_HAS_LOWLEVEL_INIT as discussed in thread
http://www.nabble.com/-Patch--U-Boot-V2%3A-Introduce-CONFIG_ARCH_HAS_INIT_LOWLEVEL-to17134638.html#a17188894

Signed-off-by: Nishanth Menon<x0nishan@ti.com>
2008-06-05 19:45:03 +02:00
Sascha Hauer 596c845072 [memory layout]: streamline memory layout
Memory layout can now be specified via kconfig options. Two
possibilities exist: default layout means the layout is stack
/ malloc heap / U-Boot. The user can also specify fixed addresses
for each TEXT_BASE / stack / malloc heap.
2008-06-04 11:54:03 +02:00
Menon, Nishanth cb73b0c227 Change CONFIG_SKIP_LOWLEVEL_INIT to CONFIG_MACH_DO_LOWLEVEL_INIT
as we rather use positive logic. Make it dependent on boards that
have it rather than on ARM

Signed-off-by: Nishanth Menon <x0nishan@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-05-12 11:35:15 +02:00
Sascha Hauer d5a9d7dc1d start-arm.S is not thought to be ARM920 specific. reflect this in the comment. 2008-05-07 16:25:46 +02:00
Nishanth Menon 3b94eca260 Replace start-arm920t.S with start-arm.S
Replace start-arm920t.S with start-arm.S. This will allow for a common logic
to handle 

Signed-off-by: Nishanth Menon <x0nishan@ti.com>

--
2008-05-07 16:24:51 +02:00
Robert Schwebel 0fb3ec4e7e remove warnings
This patch fixes the following warnings:

arch/arm/cpu/cpu.c:176:4: warning: no newline at end of file
commands/bootm.c:872:4: warning: no newline at end of file

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
2007-11-27 21:32:33 +01:00
Juergen Beisert 4cd877a840 saving added docu 2007-11-05 14:39:07 +01:00
Juergen Beisert 3be8ed2fa1 adding i.MX31 CPU support 2007-10-17 17:57:55 +02:00
sascha 825ad81490 arm: use text_entry for reset vector instead of hardcoded filename
(once again)
2007-10-17 11:10:57 +02:00
sascha 520e857b20 no need to have CONFIG_SKIP_RELOCATE_UBOOT 2007-10-16 14:46:53 +02:00
sascha 0d26cc5df1 remove s3c24x0 specific stuff from arm start file, add
arch_init_lowlevel for this stuff instead.
2007-10-16 11:39:15 +02:00
Sascha Hauer 1cdc2fe996 consolidate arch/arm/cpu/start-arm920t.S and arch/arm/cpu/start-arm926ejs.S 2007-09-05 12:50:28 +02:00
Sascha Hauer 7989a989b9 arm: use linker section for reset vector
Put the reset vector at the beginning of the binary by creating
its own section in the linker script rather than specifying the
file.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Acked-by:      Sascha Hauer <s.hauer@pengutronix.de>
2007-07-25 12:34:06 +02:00