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Author SHA1 Message Date
Holger Schurig f1f532084a commands: harmonize in-barebox documentation
This patch does probably too much, but it's hard (and very
cumbersome/time consuming) to break it out. What is does is this:

* each command has one short description, e.g. "list MUX configuration"
* made sure the short descriptions start lowercase
* each command has one usage. That string contains just the
  options, e.g. "[-npn]". It's not part of the long help text.
* that is, it doesn't say "[OPTIONS]" anymore, every usable option
  is listed by character in this (short) option string (the long
  description is in the long help text, as before)
* help texts have been reworked, to make them
  - sometimes smaller
  - sometimes describe the options better
  - more often present themselves in a nicer format
* all long help texts are now created with BUSYBOX_CMD_HELP_
  macros, no more 'static const __maybe_unused char cmd_foobar_help[]'
* made sure the long help texts starts uppercase
* because cmdtp->name and cmdtp->opts together provide the new usage,
  all "Usage: foobar" texts have been removed from the long help texts
* BUSYBOX_CMD_HELP_TEXT() provides the trailing newline by itself, this
  is nicer in the source code
* BUSYBOX_CMD_HELP_OPT() provides the trailing newline by itself
* made sure no line gets longer than 77 characters
* delibertely renamed cmdtp->usage, so that we can get compile-time
  errors (e.g. in out-of-tree modules that use register_command()
* the 'help' command can now always emit the usage, even without
  compiled long help texts
* 'help -v' gives a list of commands with their short description, this
  is similar like the old "help" command before my patchset
* 'help -a' gives out help of all commands

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-05-14 10:03:43 +02:00
Holger Schurig ab23d0bb3f commands: group 'help' output
The old output of "help" was just producing a long list, that usually
scrolled of the screen (even on a X11 terminal). This list is more
compact, and also sorted by groups.

The old output format (plus grouping) is now available with 'help -v'.

Example:

   Information commands:
     ?, devinfo, help, iomem, meminfo, version
   Boot commands:
     boot, bootm, go, loadb, loads, loadx, loady, saves, uimage
   ...

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-05-14 07:59:55 +02:00
Antony Pavlov f0ca02de16 MIPS: lib: add BAREBOX_CLK_TABLE to linker script
This commit is based on
    commit fa1a406f72
    Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
    Date:   Sat Nov 9 14:24:18 2013 +0100

        ARM: lib: add BAREBOX_CLK_TABLE to linker script

        This adds an .oftables section right before .dtb section with
        BAREBOX_CLK_TABLE to ARM linker script.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-03-28 10:28:15 +01:00
Antony Pavlov 992745c989 MIPS: csrc-r4k: use CLOCKSOURCE_MASK() macro
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-01-30 10:43:56 +01:00
Antony Pavlov 7c0da29613 MIPS: add Loongson-1B processor constants and CPU probe
This commit is based on this linux commit:

    commit 2fa36399e63c911134f28b6878aada9b395c4209
    Author: Kelvin Cheung <keguang.zhang@gmail.com>
    Date:   Wed Jun 20 20:05:32 2012 +0100

        MIPS: Add CPU support for Loongson1B

        Loongson 1B is a 32-bit SoC designed by Institute of Computing Technology
        (ICT) and the Chinese Academy of Sciences (CAS), which implements the
        MIPS32 release 2 instruction set.

        [ralf@linux-mips.org: But which is not strictly a MIPS32 compliant device
        which also is why it identifies itself with the Legacy Vendor ID in the
        PrID register.  When applying the patch I shoveled some code around to
        keep things in alphabetical order and avoid forward declarations.]

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-01-21 07:59:37 +01:00
Antony Pavlov 28c1421670 MIPS: import exception registers saving from linux kernel
Checking registers saving:

    $ make qemu-malta_defconfig
    $ make

    ...

    $ qemu-system-mips -nodefaults -M malta -m 256 \
       -nographic -serial stdio -bios ./barebox-flash-image

    ...

    barebox:/ md -l 0x03

    Ooops, address error on load or ifetch!

    $ 0   : 00000000 00000000 ffffffff 0000003f
    $ 4   : 00000000 ffffffff 00000004 00000004
    $ 8   : 00000003 a0404d50 00000001 00000002
    $12   : a0404d50 0000000a a0840000 00000003
    $16   : 00000100 a0404d50 00000100 00000003
    $20   : 00000000 a0406cd8 00000000 00000000
    $24   : a083b4d8 a083058c
    $28   : 00000000 a03ffca8 a0406ab0 a0830604
    Hi    : 00000000
    Lo    : 00000040
    epc   : a083056c
    ra    : a0830604
    Status: 00000006
    Cause : 00000410
    Config: 80008482

    ### ERROR ### Please RESET the board ###

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-12-04 17:01:11 +01:00
Antony Pavlov ddac4f3ea2 MIPS: add asm-offsets.h generation
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-12-04 17:01:11 +01:00
Antony Pavlov 6fe6d9fdc2 MIPS: add initial device tree support
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-05-13 21:17:10 +02:00
Sascha Hauer e91c960a5e mips: initialize malloc pool before start_barebox()
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-03-14 08:41:15 +01:00
Alexander Aring 43afe67390 barebox-data: add barebox-data sections
Add barebox-data section in arm branch to get complete
barebox regions in sdram regions tree.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-18 11:56:50 +01:00
Sascha Hauer 77322aa896 Treewide: remove address of the Free Software Foundation
The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-09-17 10:57:41 +02:00
Antony Pavlov bd6cc52de5 MIPS: add initial exceptions handling
Checking exception handling:

    $ make qemu-malta_defconfig
    $ make

    ...

    $ qemu-system-mips -nodefaults -M malta -m 256 \
       -nographic -serial stdio -bios ./barebox.bin

    ...

    barebox:/ md -l 0x03

    Ooops, address error on load or ifetch!
    EPC = 0xa082783c
    CP0_STATUS = 0x00000006
    CP0_CAUSE = 0x00000410
    CP0_CONFIG = 0x80008482

    ### ERROR ### Please RESET the board ###

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-07-27 09:54:13 +02:00
Antony Pavlov f3d865e29c MIPS: cpuinfo: import CPU message from Linux 3.4
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-23 18:47:53 +02:00
Antony Pavlov e41b0717dc MIPS: import CPU and cache detection code from Linux 3.4
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-23 18:47:53 +02:00
Antony Pavlov 87b302f4e2 MIPS: bootm: add "MIPS barebox" handler
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-11 09:05:11 +02:00
Sascha Hauer 4d66ef54b6 mips: Fix compiler warnings
Fixes:

arch/mips/lib/lshrdi3.c:6: warning: no previous prototype for '__lshrdi3'
arch/mips/lib/ashrdi3.c:6: warning: no previous prototype for '__ashrdi3'
arch/mips/lib/ashldi3.c:6: warning: no previous prototype for '__ashldi3'

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-04-05 08:50:01 +02:00
Sascha Hauer 33d1cc4bf2 commands: remove struct command pointer from commands
This is unused in all commands and thus can be removed.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-02-27 20:28:07 +01:00
Jean-Christophe PLAGNIOL-VILLARD 463229490e introduce barebox_bare_init_size to known the bare_init size and check it
this allow to check we do not exceed the size of the SRAM as example

introduce BAREBOX_MAX_BARE_INIT_SIZE the maximum size of bare_init
this will allow your bare_init will fit in SRAM as example
ARCH can overwrite it via ARCH_BAREBOX_MAX_BARE_INIT_SIZE

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-01-23 09:43:28 +01:00
Sascha Hauer 0ee6847f7b Merge branch 'next' 2011-12-07 12:03:13 +01:00
Antony Pavlov c0213869a2 MIPS: provide __bss_stop in linker script
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-12-07 09:52:28 +01:00
Sascha Hauer 70f7691d41 fix malloc space sizes
end is start + size - 1, not start + size.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-12-03 10:09:29 +01:00
Sascha Hauer 020a30be0d add magicvar command
The magicvar command gives an overview about all environment variables
with a special meaning.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-29 20:51:31 +01:00
Sascha Hauer d01070c8af remove EARLY_INIT and EARLY_CONSOLE support
Bitrotted over time and nearly unused, so remove it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-09-27 10:27:18 +02:00
Sascha Hauer 0fc7fb6b4f rename include/mem_malloc.h to include/memory.h
Which is a better name and also better to collect other
things.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-09-23 16:32:48 +02:00
Sascha Hauer 3ee7877a48 introduce io.h
To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-09-22 19:03:05 +02:00
Antony Pavlov 017d5ca933 MIPS: add draft cpuinfo command
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-08-05 18:20:30 +02:00
Antony Pavlov d3f66272bf MIPS: add common MIPS stuff
Add start.S, CP0 clocksource, Makefile, linker script and memory
layout function.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-08-05 18:20:17 +02:00
Antony Pavlov 922808aec8 MIPS: import libgcc-related files from linux-2.6.39
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-08-05 18:20:17 +02:00