Commit Graph

5001 Commits

Author SHA1 Message Date
Mike Frysinger
581e97df38 Blackfin: bf527-sdp: new board port
Support for the Blackfin System Development Platform (SDP) base module.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-02 16:00:39 -04:00
Mike Frysinger
c2d8b9652e Blackfin: adi config: add a hook for boards to append the env
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-02 16:00:39 -04:00
Mike Frysinger
f453220c1e Blackfin: adi config: add an "all spi flashes" option to unify board lists
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-02 16:00:39 -04:00
Mike Frysinger
821ad16fa9 Blackfin: move CONFIG_BFIN_CPU to board config.mk
The CONFIG_BFIN_CPU option is largely used in the build system, so move
it out of the board config.h and into the board config.mk.  It'd be nice
to keep everything in the config.h, but the patch to extract that value
early was rejected.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-02 16:00:38 -04:00
Wolfgang Denk
2e6e1772c0 Merge branch 'next' of /home/wd/git/u-boot/next
Conflicts:
	include/ppc4xx.h

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-28 23:30:47 +02:00
Torkel Lundgren
3df6195793 Add support for operating system OSE
Add OSE as operating system for mkimage and bootm.

Signed-off-by: Torkel Lundgren <torkel.lundgren@enea.com>
2010-09-28 14:42:26 +02:00
Peter Tyser
6aa3d3bfaa 83xx: Remove warmboot parameter from PCI init functions
This change lays the groundwork for the BOOTFLAG_* flags being removed.

This change has the small affect of delaying 100ms on PCI initialization
after a warm boot as opposed to the optimal 1ms on some boards.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

included the mpc8308_p1m board.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-09-23 21:14:42 +02:00
Kim Phillips
9eda770b46 mpc83xx: extend CONFIG_SYS_BOOTMAPSZ increase to mpc8308_p1m
continuation of commit 39da1ba923d55f316f9f1bb3a960e4ed91dc17ac:
"e300: increase CONFIG_SYS_BOOTMAPSZ to allow booting large kernels"

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-09-23 21:14:33 +02:00
Ilya Yanok
bc8f8c2614 mpc8308_p1m: support for MPC8308 P1M board
This patch provides support for MPC8308 P1M board with the following
set of features:
 Dual UART is supported
 NOR flash is supported
 Both TSEC Ethernet controllers are supported
 PCI Express initialization is supported
 Both I2C controllers are supported

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-09-23 21:14:17 +02:00
Ilya Yanok
65ea758939 MPC8308RDB: various clean ups
This patch cleans up the Freescale MPC8308RDB Development board support.
Things fixed:
 - Removed unused PCIE2 definitions from configuration
 - SICR{L,H} defines used for System I/O Configuration Registers values
   instead of hardcoding
 - CONFIG_SYS_SCCR_PCIEXP1CM used to enable PCIE clock instead of
   writing to SCCR from the board code
 - sleep mode stuff removed as MPC8308 has no support for deep sleep and
   PMCCR1 register. board_early_init_f() removed.
 - MPC8308 has no ERRATA for DDR controller so workaround removed
 - 'assignment in if statement' issues solved
 - use LBLAWAR_* defines instead of hardcoding

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-09-23 21:14:08 +02:00
Ilya Yanok
f3ce250d96 mpc8308: add SICR{L,H} fields definitions
This patch adds defines to set supported fields in System I/O
Configuration Registers High and Low on Freescale MPC8308 CPU.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-09-23 21:14:02 +02:00
Ira W. Snyder
9f530d59e6 e300: increase CONFIG_SYS_BOOTMAPSZ to allow booting large kernels
Newer Linux kernels can overrun the initial memory window used for
booting with their BSS area. When this happens, they overwrite the FDT
and silently fail to boot.

On e300 CPUs, the Linux kernel uses an initial BAT covering the first
256MB of RAM. See arch/powerpc/kernel/head_32.S for details. Increase
the value of CONFIG_SYS_BOOTMAPSZ to accommodate the maximum value
allowed by Linux. This will allow very large kernels to boot.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-09-23 21:13:32 +02:00
Scott Wood
e8d3ca8b33 mpc831xerdb: enable mtdparts for NAND
The default partition table matches the .dts files for these boards in
Linux.  This allows these partitions to be used by name with U-Boot's
"nand" command.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-09-23 21:13:22 +02:00
Matthias Fuchs
5b9144638e ppx4xx: remove unused functionality for DU405 boards
Remove some unused functionality to make U-Boot build again.
Especially PCI is not used on the board.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:06 +02:00
Stefan Roese
24956642ef Remove unused CONFIG_SERIAL_SOFTWARE_FIFO feature
This patch removes the completely unused CONFIG_SERIAL_SOFTWARE_FIFO
feature from U-Boot. It has only been implemented for PPC4xx and was not
used at all. So let's remove it and make the code smaller and cleaner.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
550650ddd0 ppc4xx: Use common NS16550 driver for PPC4xx UART
This patch removes the PPC4xx UART driver. Instead the common NS16550
driver is used, since all PPC4xx SoC's use this peripheral device.

The file 4xx_uart.c now only implements the UART clock calculation
function which also sets the SoC internal UART divisors.

All PPC4xx board config headers are changed to use this common NS16550
driver now.

Tested on these boards:
acadia, canyonlands, katmai, kilauea, sequoia, zeus

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
afabb498b7 ppc4xx: Big header cleanup part 2, mostly PPC405 related
This cleanup is done by creating header files for all SoC versions and
moving the SoC specific defines into these special headers. This way the
common header ppc405.h and ppc440.h can be cleaned up finally.

As a part from this cleanup, the GPIO definitions for PPC405EP are
corrected. The high and low parts of the registers (for example
CONFIG_SYS_GPIO0_OSRL vs. CONFIG_SYS_GPIO0_OSRH) have been defined in
the wrong order. This patch now fixes this issue by switching these
xxxH and xxxL values. This brings the GPIO 405EP port in sync with all
other PPC4xx ports.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
5e7abce991 ppc4xx: Big header cleanup, mostly PPC440 related
This patch starts a bit PPC4xx header cleanup. First patch mostly
touches PPC440 files. A later patch will touch the PPC405 files as well.

This cleanup is done by creating header files for all SoC versions and
moving the SoC specific defines into these special headers. This way the
common header ppc405.h and ppc440.h can be cleaned up finally.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
b36df56115 ppc4xx: Move ppc4xx headers to powerpc include directory
This patch moves some ppc4xx related headers from the common include
directory (include/) to the powerpc specific one
(arch/powerpc/include/asm/). This way to common include directory is not
so cluttered with files.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
4ad0df2b7c ppc4xx: Remove unreferenced file include/405_dimm.h
Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
8a805df136 ppc4xx/fdt/flash: Change fdt_fixup_nor_flash_node() to not rely on cs size
This patch changes the behaviour of the fdt_fixup_nor_flash_node()
function. Now it doesn't patch the size of the "reg" property with the
chip-select size, but with the size returned from the new function
flash_get_bank_size(). This function will return per weak default the
flash size of the bank (bank = chip-select numer) detected by the flash
driver. If this does not fit your needs, this function may be overridden
by a board specific one.

For this the parameters needed to be changed. So I intentionally squashed
the PPC4xx stuff using this routine into this patch. Otherwise it would
not be git-bisectable anymore.

The board specific function for the AMCC/APM Ebony eval board is now
included in this patch version.

Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Detlev Zundel <dzu@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>
Cc: Wolfgang Denk <wd@denx.de>
2010-09-23 08:49:49 +02:00
Stefan Roese
ab25e880ca ppc4xx: POST UART: Use in/out_8() io-accessor functions
This patch fixes a problem in the PPC4xx POST UART driver. This driver
incorrectly used the in/out8() io-accessor functions. This could lead to
problems since these functions don't guarantee execution ordering. This
patch now replaces these functions with the correct ones.

Additionally the driver is converted to using the NS16550 struct instead
of macros for the register offsets.

And some common code is factored out for better maintainability.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 08:43:56 +02:00
Stefan Roese
6aa9195dae ppc4xx: Fix CATcenter build
Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 08:32:02 +02:00
Timur Tabi
e69e520f9d fsl: refactor MPC8610 and MPC5121 DIU code to use existing bitmap and logo features
The Freescale MPC8610 and MPC5121 DIU code had re-implement two features that already
existed in U-Boot: bitmap drawing and top-of-screen logo (CONFIG_VIDEO_LOGO).
So delete the 8610-specific code and use the built-in features instead.

Signed-off-by: Timur Tabi <timur@freescale.com>
2010-09-21 22:46:02 +02:00
Matthias Weisser
b9d74b4810 arm: Make jadecpu board use relocation
This patch modifies jadecpu board so that it is usable
with the relocation patches by Heiko Schocher

Signed-off-by: Matthias Weisser <weisserm@arcor.de>
2010-09-21 21:42:01 +02:00
Michael Zaidman
800eb09641 POST cleanup.
- Revives POST for blackfin arch;
- Removes redundant code:
     arch/blackfin/lib/post.c
     arch/powerpc/cpu/ppc4xx/commproc.c
     arch/powerpc/cpu/mpc512x/common.c
- fixes up the post_word_{load|store} usage.

Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Acked-by: Detlev Zundel <dzu@denx.de>
Tested-by: Anatolij Gustschin <agust@denx.de>

List of the maintainers of the affected by patch boards:
Cc: Stephan Linz <linz@li-pro.net>
Cc: Denis Peter <d.peter@mpl.ch>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Niklaus Giger <niklaus.giger@netstal.com>
Cc: Larry Johnson <lrj@acm.org>
Cc: Feng Kan <fkan@amcc.com>
2010-09-21 21:39:31 +02:00
Wolfgang Denk
696f6cc9ba Merge branch 'next' of ../custodians into next 2010-09-21 09:34:37 +02:00
Wolfgang Denk
e7eb046a24 Merge branch 'next' of git://git.denx.de/u-boot-usb into next 2010-09-21 09:34:02 +02:00
Wolfgang Denk
b65e86d8d8 Merge branch 'next' of ../custodians into next 2010-09-21 09:22:17 +02:00
Vitaly Kuzmichev
6142e0ae0f USB-CDC: Fix coding style issues
Fixes most of checkpatch warnings and errors in USB gadget stack.

The most frequently encountered problems are:
1) "(foo*)", "foo * bar", "foo* bar"
2) C99 // comments
3) No spaces before/after/around '?', ':', '=', '==', ',', '&', '('
4) Spaces before '['
5) Spaces between function names and '('
6) Block braces in wrong places
7) Spaces before tabs
8) Macros with complex values not enclosed in parenthesis
9) Multiline comments start just after /*

Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2010-09-20 21:57:17 +02:00
Remy Bohmer
23cd138503 Integrate USB gadget layer and USB CDC driver layer
Derived from Linux kernel 2.6.27

Signed-off-by: Thomas Smits <ts.smits@gmail.com>
Signed-off-by: Remy Bohmer <linux@bohmer.net>
2010-09-20 21:57:16 +02:00
Stefan Roese
ca5def3f30 cfi_flash: Simplify dynamic flash bank number detection
This patch simplifies the use of CONFIG_SYS_MAX_FLASH_BANKS_DETECT. By
moving these optional variables and defines into the common code, board
specific code is minimized. Currently only the following board use
this feature:

APC405, IDS8247, TQM834x

And IDS8247 doesn't seem to really need this feature, since its not
updating the bank number variable at all. So this patch removes the
definition of CONFIG_SYS_MAX_FLASH_BANKS_DETECT from this board port.

This new framework will be used by the upcoming lwmon5 update as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
Cc: Matthias Fuchs <matthias.fuchs@esd.eu>
2010-09-20 15:08:51 +02:00
Wolfgang Denk
9ddc3af8a1 Remove smmaco4 board support
Recent changes caused that the smmaco4 board now is included in the
boards built by MAKEALL, which revealed that compilation for this
board has been broken for a long time:

mpc5xxx_fec.c:899:2: error: #error fec->xcv_type not initialized.

The board is orphaned.  Drop support for it.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 21:32:37 +02:00
Wolfgang Denk
77efe35fec Remove HMI10 board support
Recent changes caused that the HMI10 board now is included in the
boards built by MAKEALL, which revealed that compilation for this
board has been broken for a long time:

ps2ser.c: In function 'ps2ser_init':
ps2ser.c:155: error: 'UART_LCR' undeclared (first use in this function)
ps2ser.c:155: error: (Each undeclared identifier is reported only once
ps2ser.c:155: error: for each function it appears in.)
ps2ser.c:156: error: 'UART_DLL' undeclared (first use in this function)
ps2ser.c:157: error: 'UART_DLM' undeclared (first use in this function)
ps2ser.c:159: error: 'UART_IER' undeclared (first use in this function)
ps2ser.c:160: error: 'UART_MCR' undeclared (first use in this function)
ps2ser.c:161: error: 'UART_FCR' undeclared (first use in this function)
ps2ser.c:162: error: 'UART_FCR_ENABLE_FIFO' undeclared (first use in this function)
ps2ser.c:166: error: 'UART_LSR' undeclared (first use in this function)
ps2ser.c: In function 'ps2ser_putc':
ps2ser.c:198: error: 'UART_LSR' undeclared (first use in this function)
ps2ser.c:200: error: 'UART_TX' undeclared (first use in this function)
ps2ser.c: In function 'ps2ser_getc_hw':
ps2ser.c:224: error: 'UART_LSR' undeclared (first use in this function)
ps2ser.c:225: error: 'UART_RX' undeclared (first use in this function)
ps2ser.c: In function 'ps2ser_interrupt':
ps2ser.c:293: error: 'UART_IIR' undeclared (first use in this function)

The board is orphaned, and AFAICT has reached EOL.
Drop support for it.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 21:28:25 +02:00
Wolfgang Denk
90964353ff aev board: Fix compile problems
Recent changes caused thatthe aev board now is included in the boards
built by MAKEALL, which revealed that compilation for this board has
been broken for a long time:

mpc5xxx_fec.c:899:2: error: #error fec->xcv_type not initialized.
mpc5xxx_fec.c:899:2: error: #error fec->xcv_type not initialized.

Fix it.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 19:29:57 +02:00
Ben Gardiner
9700375624 da8xx: fixup ARM relocation support
Split the existing dram_init for da8xx when ARM reloc is enabled, like the
changes to arch/arm/cpu/arm926ejs/orion5x/dram.c in
0f234d263b17ccf1b8fd776eb8c15b7cdb27a887 by Heiko Schocher <hs@denx.de>.

Without these changes gd->ram_size is '0' which leads to incorrect relocation
when CONFIG_SYS_ARM_WITHOUT_RELOC is defined and the board does not boot.

We use get_ram_size to dynamically calculate the available RAM because it runs
on different board version with different ram, as suggested by Heiko in private
communication.

Tested on a da850evm with 128M of DDR2 installed; with both
CONFIG_SYS_ARM_WITHOUT_RELOC defined and undefined.

Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Reviewed-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
CC: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
CC: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:56 +02:00
Heiko Schocher
ab86f72c35 ARM: implement relocation for ARM926
Change the implementation for arm926 to relocate the code to
an arbitrary address in RAM.

Adapt the TX25 (i.MX25), magnesium board to test the changes.

On the tx25 board TEXT_BASE is set to the final relocation
address to prevent one more copying of u-boot code
when relocating. More info see:
doc/README.arm-relocation

da850 board:
Tested-by: Ben Gardiner <bengardiner@nanometrics.ca>

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
2010-09-19 19:29:54 +02:00
Heiko Schocher
561142af20 ARM: implement relocation for ARM V7 (OMAP)
Change the implementation for ARM V7 to relocate the code to an
arbitrary address in RAM.

Adapt the Beagle board (Cortex A8) to test the changes.

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:53 +02:00
Heiko Schocher
e48b7c0aad ARM: implement relocation for ARM11
Change the implementation for ARM11 to relocate the code to an
arbitrary address in RAM.

Tested on the qong board.

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:53 +02:00
Heiko Schocher
3fbeeea633 common: move TOTAL_MALLOC_LEN to include/common.h
Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:52 +02:00
Heiko Schocher
620f1f6a64 relocation: fixup cmdtable
fixup_cmdtable() did all work for fixing up the cmdtable,
if CONFIG_RELOC_FIXUP_WORKS is not defined.

CONFIG_RELOC_FIXUP_WORKS is missing for i386! I talked
with Graeme Russ, and he will fix this soon.

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:51 +02:00
Heiko Schocher
7e4a9e6dc8 ARM (ARM11): add data cache support, test on Qong board
Add data cache support for arm1136 systems.

Enable "cache" command on Qong board and test performance.

    Test 1: Loading 127 MB of data from NAND flash into RAM:

    Instr. Cache	off	on	on
      Data Cache	off	off	on
    --------------------------------------------------
    QONG (ARM11)	177s	95s	43s	= x 4.1

    Test 2: uncompressing a gzipped image from RAM to RAM
            (size compressed: 6.5 MiB, uncompressed: 35 MiB):

    Instr. Cache	off	on	on
      Data Cache	off	off	on
    --------------------------------------------------
    QONG (ARM11)	1.54s	0.95s	0.18s	= x 8.6

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:51 +02:00
Heiko Schocher
95c6f6d34d ARM V7 (OMAP): add data cache support, test on Beagle board
Add data cache support for ARM V7 systems. Used cache flush
functions from linux:arch/arm/mm/cache-v7.S developed from
Catalin Marinas.

Enable "cache" command on Beagle board and test performance.

    Test 1: Loading 127 MB of data from NAND flash into RAM:

    Instr. Cache	off	on	on
      Data Cache	off	off	on
    --------------------------------------------------
    Beagle (Cortex A8)	116s	106s	30.3s	= x 3.8

    Test 2: uncompressing a gzipped image from RAM to RAM
            (size compressed: 6.5 MiB, uncompressed: 35 MiB):

    Instr. Cache	off	on	on
      Data Cache	off	off	on
    --------------------------------------------------
    Beagle (Cortex A8)	1.84s	1.64s	0.12s	= x 15.3

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Ben Gardiner<bengardiner@nanometrics.ca>
2010-09-19 19:29:51 +02:00
Heiko Schocher
c3330e9d6a ARM (ARM926ejs): add data cache support, tested on magnesium and tx25 board
Enable "cache" command on tx25 and magnesium board and test performance.

    Test 1: Loading 127 MB of data from NAND flash into RAM:

    Instr. Cache        off     on      on
      Data Cache        off     off     on
    --------------------------------------------------
    magnesium           32,6s   22,5s   30s     = x 1,09
    tx25 (29MB only)    9,69s   5,05s   8,16s   = x 1,19

    Test 2: uncompressing a gzipped image from RAM to RAM
            (size compressed: 6.5 MiB, uncompressed: 35 MiB):

    Instr. Cache        off     on      on
      Data Cache        off     off     on
    --------------------------------------------------
    magnesium           4,25s   2,08s   1,72s   = x 2,47
    tx25                4,82s   2,04s   1,84s   = x 2,62

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Alessandro Rubini <rubini@gnudd.com>
2010-09-19 19:29:51 +02:00
Heiko Schocher
d1831c5ee6 mpc52xx: Cleanup use of CONFIG_SYS_SRAM_BASE and CONFIG_SYS_SRAM_SIZE
cleanup for the uc101 and the mucmc52 board.

Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:50 +02:00
Wolfgang Denk
ea882baf9c New implementation for internal handling of environment variables.
Motivation:

* Old environment code used a pessimizing implementation:
  - variable lookup used linear search => slow
  - changed/added variables were added at the end, i. e. most
    frequently used variables had the slowest access times => slow
  - each setenv() would calculate the CRC32 checksum over the whole
    environment block => slow
* "redundant" envrionment was locked down to two copies
* No easy way to implement features like "reset to factory defaults",
  or to select one out of several pre-defined (previously saved) sets
  of environment settings ("profiles")
* No easy way to import or export environment settings

======================================================================

API Changes:

- Variable names starting with '#' are no longer allowed

  I didn't find any such variable names being used; it is highly
  recommended to follow standard conventions and start variable names
  with an alphanumeric character

- "printenv" will now print a backslash at the end of all but the last
  lines of a multi-line variable value.

  Multi-line variables have never been formally defined, allthough
  there is no reason not to use them. Now we define rules how to deal
  with them, allowing for import and export.

- Function forceenv() and the related code in saveenv() was removed.
  At the moment this is causing build problems for the only user of
  this code (schmoogie - which has no entry in MAINTAINERS); may be
  fixed later by implementing the "env set -f" feature.

Inconsistencies:

- "printenv" will '\\'-escape the '\n' in multi-line variables, while
  "printenv var" will not do that.

======================================================================

Advantages:

- "printenv" output much better readable (sorted)
- faster!
- extendable (additional variable properties can be added)
- new, powerful features like "factory reset" or easy switching
  between several different environment settings ("profiles")

Disadvantages:

- Image size grows by typically 5...7 KiB (might shrink a bit again on
  systems with redundant environment with a following patch series)

======================================================================

Implemented:

- env command with subcommands:

  - env print [arg ...]

    same as "printenv": print environment

  - env set [-f] name [arg ...]

    same as "setenv": set (and delete) environment variables

    ["-f" - force setting even for read-only variables - not
    implemented yet.]

  - end delete [-f] name

    not implemented yet

    ["-f" - force delete even for read-only variables]

  - env save

    same as "saveenv": save environment

  - env export [-t | -b | -c] addr [size]

    export internal representation (hash table) in formats usable for
    persistent storage or processing:

	-t:	export as text format; if size is given, data will be
		padded with '\0' bytes; if not, one terminating '\0'
		will be added (which is included in the "filesize"
		setting so you can for exmple copy this to flash and
		keep the termination).
	-b:	export as binary format (name=value pairs separated by
		'\0', list end marked by double "\0\0")
	-c:	export as checksum protected environment format as
		used for example by "saveenv" command
	addr:	memory address where environment gets stored
	size:	size of output buffer

	With "-c" and size is NOT given, then the export command will
	format the data as currently used for the persistent storage,
	i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and
	prepend a valid CRC32 checksum and, in case of resundant
	environment, a "current" redundancy flag. If size is given, this
	value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32
	checksum and redundancy flag will be inserted.

	With "-b" and "-t", always only the real data (including a
	terminating '\0' byte) will be written; here the optional size
	argument will be used to make sure not to overflow the user
	provided buffer; the command will abort if the size is not
	sufficient. Any remainign space will be '\0' padded.

        On successful return, the variable "filesize" will be set.
        Note that filesize includes the trailing/terminating '\0'
        byte(s).

        Usage szenario: create a text snapshot/backup of the current
	settings:

		=> env export -t 100000
		=> era ${backup_addr} +${filesize}
		=> cp.b 100000 ${backup_addr} ${filesize}

	Re-import this snapshot, deleting all other settings:

		=> env import -d -t ${backup_addr}

  - env import [-d] [-t | -b | -c] addr [size]

    import external format (text or binary) into hash table,
    optionally deleting existing values:

	-d:	delete existing environment before importing;
		otherwise overwrite / append to existion definitions
	-t:	assume text format; either "size" must be given or the
		text data must be '\0' terminated
	-b:	assume binary format ('\0' separated, "\0\0" terminated)
	-c:	assume checksum protected environment format
	addr:	memory address to read from
	size:	length of input data; if missing, proper '\0'
		termination is mandatory

  - env default -f

    reset default environment: drop all environment settings and load
    default environment

  - env ask name [message] [size]

    same as "askenv": ask for environment variable

  - env edit name

    same as "editenv": edit environment variable

  - env run

    same as "run": run commands in an environment variable

======================================================================

TODO:

- drop default env as implemented now; provide a text file based
  initialization instead (eventually using several text files to
  incrementally build it from common blocks) and a tool to convert it
  into a binary blob / object file.

- It would be nice if we could add wildcard support for environment
  variables; this is needed for variable name auto-completion,
  but it would also be nice to be able to say "printenv ip*" or
  "printenv *addr*"

- Some boards don't link any more due to the grown code size:
  DU405, canyonlands, sequoia, socrates.

	=> cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>,
	       Stefan Roese <sr@denx.de>,
	       Heiko Schocher <hs@denx.de>

- Dropping forceenv() causes build problems on schmoogie

	=> cc: Sergey Kubushyn <ksi@koi8.net>

- Build tested on PPC and ARM only; runtime tested with NOR and NAND
  flash only => needs testing!!

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>,
Cc: Stefan Roese <sr@denx.de>,
Cc: Heiko Schocher <hs@denx.de>
Cc: Sergey Kubushyn <ksi@koi8.net>
2010-09-19 19:29:48 +02:00
Wolfgang Denk
6d014adfa2 Remove support for CONFIG_HAS_UID and "forceenv" command
This (undocumented) concept was only in use for the MVSMR and
davinci_schmoogie Sergey Kubushyn <ksi@koi8.net> boards.
Drop it for now.  If really needed, it should be reimplemented
later in the context of the new environment command set.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Andre Schwarz <andre.schwarz@matrix-vision.de>
Cc: Sergey Kubushyn <ksi@koi8.net>
Acked-by: Sergey Kubushyn <ksi@koi8.net>
2010-09-19 19:29:47 +02:00
Wolfgang Denk
a6826fbc5c Add hash table support as base for new environment code
This implementation is based on code from uClibc-0.9.30.3 but was
modified and extended for use within U-Boot.

Major modifications and extensions:

* hsearch() [modified / extended]:
  - While the standard version does not make any assumptions about
    the type of the stored data objects at all, this implementation
    works with NUL terminated strings only.
  - Instead of storing just pointers to the original objects, we
    create local copies so the caller does not need to care about the
    data any more.
  - The standard implementation does not provide a way to update an
    existing entry.  This version will create a new entry or update an
    existing one when both "action == ENTER" and "item.data != NULL".
  - hsearch_r(): Instead of returning 1 on success, we return the
    index into the internal hash table, which is also guaranteed to be
    positive.  This allows us direct access to the found hash table
    slot for example for functions like hdelete().
* hdelete() [added]:
  - The standard implementation of hsearch(3) does not provide any way
    to delete any entries from the hash table.  We extend the code to
    do that.
* hexport() [added]:
  - Export the data stored in the hash table in linearized form:
    Entries are exported as "name=value" strings, separated by an
    arbitrary (non-NUL, of course) separator character. This allows to
    use this function both when formatting the U-Boot environment for
    external storage (using '\0' as separator), but also when using it
    for the "printenv" command to print all variables, simply by using
    as '\n" as separator. This can also be used for new features like
    exporting the environment data as text file, including the option
    for later re-import.
  - The entries in the result list will be sorted by ascending key
    values.
* himport() [added]:
  - Import linearized data into hash table.  This is the inverse
    function to hexport(): it takes a linear list of "name=value"
    pairs and creates hash table entries from it.
  - Entries without "value", i. e. consisting of only "name" or
    "name=", will cause this entry to be deleted from the hash table.
  - The "flag" argument can be used to control the behaviour: when
    the H_NOCLEAR bit is set, then an existing hash table will kept,
    i. e. new data will be added to an existing hash table;
    otherwise, old data will be discarded and a new hash table will
    be created.
  - The separator character for the "name=value" pairs can be
    selected, so we both support importing from externally stored
    environment data (separated by NUL characters) and from plain text
    files (entries separated by newline characters).
  - To allow for nicely formatted text input, leading white space
    (sequences of SPACE and TAB chars) is ignored, and entries
    starting (after removal of any leading white space) with a '#'
    character are considered comments and ignored.
  - NOTE: this means that a variable name cannot start with a '#'
    character.
  - When using a non-NUL separator character, backslash is used as
    escape character in the value part, allowing for example fo
    multi-line values.
  - In theory, arbitrary separator characters can be used, but only
    '\0' and '\n' have really been tested.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 19:29:47 +02:00
Wolfgang Denk
54c6977e9c Add qsort - add support for sorting data arrays
Code adapted from uClibc-0.9.30.3

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 19:29:47 +02:00
Wolfgang Denk
65cd3fa81f Add basic errno support.
Needed for hash table support; probably useful in a lot of other
places as well.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 19:29:47 +02:00