Commit graph

350 commits

Author SHA1 Message Date
Troy Kisky
06d513ecb6 usb: add enum usb_init_type parameter to usb_lowlevel_init
This parameter will later be used to verify OTG ports.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
2013-10-20 23:45:26 +02:00
Wolfgang Denk
3765b3e7bd Coding Style cleanup: remove trailing white space
Signed-off-by: Wolfgang Denk <wd@denx.de>
2013-10-14 16:06:53 -04:00
Daniel Schwierzeck
4b17645d5d MIPS: bootm: drop obsolete Qemu specific bootm implementation
The Qemu specific bootm implementation was intended for a special
Qemu target in Linux kernel. But this target has been dropped in
v2.6.25-rc1 by commit 302922e5f6901eb6f29c58539631f71b3d9746b8

    Author: Ralf Baechle <ralf@linux-mips.org>
    Date:   Tue Jan 29 10:15:02 2008 +0000

    [MIPS] Qemu: Remove platform.

    The Qemu platform was originally implemented to have an easily supportable
    platform until Qemu reaches a state where it emulates a real world system.
    Since the latest release Qemu is capable of emulating the MIPSsim and
    Malta platforms, so this goal has been reached.  The Qemu plaform is also
    rather underfeatured so less useful than a Malta emulation.

Thus the special bootm implementation is obsolete by now and can be
dropped. The Qemu support in U-Boot is going to be replaced by MIPS Malta
board support.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Daniel Schwierzeck
b87493f49a MIPS: bootm: add YAMON style Linux preparation/jump code for Qemu Malta
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Daniel Schwierzeck
6c154552b0 MIPS: bootm: add support for generic relocation of init ramdisks
All linux kernels after v2.6 require a page-aligned location of
an external init ramdisk. Enable CONFIG_SYS_BOOT_RAMDISK_HIGH to
support this with the generic U-Boot relocation code.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Daniel Schwierzeck
15f8aa9093 MIPS: bootm: refactor initialisation of kernel environment
Move initialisation of Linux environment to separate functions.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Daniel Schwierzeck
59e8cbdb15 MIPS: bootm: refactor initialisation of kernel cmdline
Move initialisation of Linux command line to separate functions.
Also add support for bootm subcommand 'cmdline'.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Daniel Schwierzeck
f66cc1e348 MIPS: bootm: add support for LMB
This is required for init ramdisk relocation and device tree
support.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Daniel Schwierzeck
c4b37847d3 MIPS: bootm: optimize kernel entry call
Fix signature of kernel entry function. Mark the kernel entry
with __noreturn for better code optimisation.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Daniel Schwierzeck
45bde489e3 MIPS: bootm: fix checkpatch.pl warnings
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-08-13 11:58:48 +02:00
Gabor Juhos
db2c86d7d7 MIPS: mips32/cache.S: use v1 register for indirect function calls
Synchronize the code with mips64/cache.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:07 -04:00
Gabor Juhos
ee8b1e2959 MIPS: mips32/cache.S: store cache line size in t8 register
Synchronize the code with mips64/cache.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:07 -04:00
Gabor Juhos
c325916563 MIPS: mips32/cache.S: save return address in t9 register
Synchronize the code with mips64/cache.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:06 -04:00
Gabor Juhos
d707e5b713 MIPS: xburst/start.S: rework relocation info check
Make it similar to the code in mips{32,64}/start.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:06 -04:00
Gabor Juhos
e5c868a208 MIPS: xburst/start.S: use t8 register for dynamic relocation
Synchronize the code with mips{32,64}/start.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:06 -04:00
Gabor Juhos
f01d693535 MIPS: xburst/start.S: save gd in s0 register
Synchronize the code with mips{32,64}/start.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:06 -04:00
Gabor Juhos
ba9cf07122 MIPS: xburst/start.S: save relocation offset in s1 register
Synchronize the code with mips{32,64}/start.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:06 -04:00
Gabor Juhos
9a28e0d177 MIPS: xburst/start.S: save relocation address in s2 register
Synchronize the code with mips{32,64}/start.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:05 -04:00
Gabor Juhos
691995f9ab MIPS: mips32/start.S: rework relocation info check
Make it similar to the code in mips64/start.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:05 -04:00
Gabor Juhos
680cb2dc3a MIPS: mips32/start.S: use t8 register for dynamic relocation
Synchronize the code with mips64/start.S, in order to
allow further unifications.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:05 -04:00
Gabor Juhos
da84f33b04 MIPS: mips32/cache.S: remove superfluous register assignment
The t4 register already holds the cache
line size, and the value of the register
is not changed in mips_init_icache.

Get the cache line size value from t4 for
mips_init_dcache as well and remove the
superfluous assignment of t5 register.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
2013-07-24 09:51:05 -04:00
Gabor Juhos
b1591ec246 MIPS: mips64/interrupt.c: remove superfluous include
Nothing is used from asm/mipsregs.h.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:05 -04:00
Gabor Juhos
c3e4901fc6 MIPS: mips32/time.c: fix checkpatch errors/warnings
Checking mips32/time.c with checkpatch.pl shows this:

  arch/mips/cpu/mips32/time.c:30: WARNING: line over 80 characters
  arch/mips/cpu/mips32/time.c:57: ERROR: return is not a function, parentheses are not required
  total: 1 errors, 1 warnings, 0 checks, 85 lines checked

Fix the code to make checkpatch.pl happy.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:04 -04:00
Gabor Juhos
ac12984de8 MIPS: qemu-malta: setup GT64120 registers as done by YAMON
Move the GT64120 register base to 0x1be00000
and setup PCI BAR registers as done by the
original YAMON bootloader.

This is needed for running Linux kernel.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:04 -04:00
Gabor Juhos
52caee0f36 MIPS: qemu-malta: enable flash support
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:04 -04:00
Gabor Juhos
015643152a MIPS: qemu-malta: add reset support
The MIPS Malta board has a SOFTRES register. Writing a
magic value into that register initiates a board reset.

Use this feature to implement reset support.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:03 -04:00
Gabor Juhos
5a4dcfac1e MIPS: qemu-malta: add support for emulated MIPS Malta board
Add minimal support for the MIPS Malta CoreLV board
emulated by Qemu. The only supported peripherial is
the UART.

This is enough to boot U-Boot to the command prompt
both in little and big endian mode.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:03 -04:00
Gabor Juhos
843a76b66b MIPS: start.S: emulate REVISION register for qemu-malta
On the origial Malta boards the REVISION register is
accessible at the 0x1fc00010 address. The contents of
this register gives information about the revision
of the Malta and Core Boards.

This register is used by the Linux kernel to identify
the actual board it is running on. However the register
is not emulated properly by Qemu, so put a hardcoded
value into the flash to make Linux work.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24 09:51:03 -04:00
Tom Rini
518d438537 MIPS: mips64: fix typos in copyright text of start.S
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

Conflicts:

	arch/mips/cpu/mips64/start.S

Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:50:52 -04:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Dirk Eibach
b8eee4354f Build arch/$ARCH/lib/bootm.o depending on CONFIG_CMD_BOOTM
MAKEALL is fine for ppc4xx and mpc85xx.
Run checks were done on our controlcenterd hardware.

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-07-16 17:44:30 -05:00
Daniel Schwierzeck
e1208c2fe5 MIPS: asm/errno.h: switch to asm-generic/errno.h
This fixes several warnings like

In file included from ./u-boot/include/linux/mtd/mtd.h:13:0,
                 from env_onenand.c:37:
./u-boot/build/vct_platinumavc_onenand_small/include2/asm/errno.h:52:0: warning: "ENOMSG" redefined [enabled by default]

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-06-08 23:10:10 +02:00
Gabor Juhos
f0550f87f4 MIPS: fix __raw_* IO accessors
The purpose of the __raw* IO accessors is to provide
IO access in native-endian order. However in the current
MIPS implementation, the 16 and 32 bit variants of the
__raw accessors are swapping the values on big-endian
systems if the CONFIG_SWAP_IO_SPACE option is enabled.

The patch changes the IO accessor macros to fix this
broken behaviour.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-06-08 23:10:10 +02:00
Andreas Bießmann
d2eae43ba8 lib: consolidate hang()
Delete all occurrences of hang() and provide a generic function.

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
[trini: Modify check around puts() in hang.c slightly]
Signed-off-by: Tom Rini <trini@ti.com>
2013-05-01 16:41:08 -04:00
Tom Rini
0ce033d258 Merge branch 'master' of git://git.denx.de/u-boot-arm
Albert's rework of the linker scripts conflicted with Simon's making
everyone use __bss_end.  We also had a minor conflict over
README.scrapyard being added to in mainline and enhanced in
u-boot-arm/master with proper formatting.

Conflicts:
	arch/arm/cpu/ixp/u-boot.lds
	arch/arm/cpu/u-boot.lds
	arch/arm/lib/Makefile
	board/actux1/u-boot.lds
	board/actux2/u-boot.lds
	board/actux3/u-boot.lds
	board/dvlhost/u-boot.lds
	board/freescale/mx31ads/u-boot.lds
	doc/README.scrapyard
	include/configs/tegra-common.h

Build tested for all of ARM and run-time tested on am335x_evm.

Signed-off-by: Tom Rini <trini@ti.com>
2013-03-18 14:37:18 -04:00
Simon Glass
716cc8cc7f Change stub example to use asm-generic/sections.h
We can use the declarations of __bss_start and _end from this header
instead of declaring them locally.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:13:58 -04:00
Simon Glass
1865286466 Introduce generic link section.h symbol files
We create a separate header file for link symbols defined by the link
scripts. It is helpful to have these all in one place and try to
make them common across architectures. Since Linux already has a similar
file, we bring this in even though many of the symbols there are not
relevant to us.

Each architecture has its own asm/sections.h where symbols specifc to
that architecture can be added. For now everything except AVR32 just
includes the generic header.

One change is needed in arch/avr32/lib/board.c to make this conversion
work.

Reviewed-by: Tom Rini <trini@ti.com> (version 5)
Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:13:58 -04:00
Albert ARIBAUD
ef123c5253 Refactor linker-generated arrays
Refactor linker-generated array code so that symbols
which were previously linker-generated are now compiler-
generated. This causes relocation records of type
R_ARM_ABS32 to become R_ARM_RELATIVE, which makes
code which uses LGA able to run before relocation as
well as after.

Note: this affects more than ARM targets, as linker-
lists span possibly all target architectures, notably
PowerPC.

Conflicts:
	arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
	arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds
	arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
	board/ait/cam_enc_4xx/u-boot-spl.lds
	board/davinci/da8xxevm/u-boot-spl-da850evm.lds
	board/davinci/da8xxevm/u-boot-spl-hawk.lds
	board/vpac270/u-boot-spl.lds

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2013-03-12 23:28:40 +01:00
Daniel Schwierzeck
455fbfb668 MIPS: board.c: remove manual relocation of env_name_spec
Remove the manual relocation of env_name_spec. This has been missed
in the previous patch series for introducing dynamic relocation
on MIPS.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-15 18:00:04 +01:00
Gabor Juhos
04380c651a MIPS: add dynamic relocation support
The code handles relocation entries with the
following relocation types only:
  mips32: R_MIPS_REL32
  mips64: R_MIPS_REL+R_MIPS_64
  xburst: R_MIPS_REL32

Other relocation entries are skipped without
processing. The code must be extended if other
relocation types must be supported.

Add -pie to LDFLAGS_FINAL to generate the .rel.dyn
fixup table, which will be applied to the relocated
image before transferring control to it.

The CONFIG_NEEDS_MANUAL_RELOC is not needed
after the patch, so remove that as well.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:13 +01:00
Gabor Juhos
0ba8926e08 MIPS: u-boot.lds: add relocation specific sections
This section contain the table needed for dynamic
relocation. Also provide symbols for the relocation
code to access the table.

Discard all sections which are not needed in the final
ELF binary and U-Boot image. Section .dynsym cannot be
discarded or GNU ld crashes otherwise. This section
will be stripped by GNU objcpy in a later patch.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:13 +01:00
Daniel Schwierzeck
28875e2c47 MIPS: start.S: use symbol __image_copy_end for U-Boot image relocation
Use the newly introduced symbol __image_copy_end as end address for
relocation of U-Boot image. This is needed for dynamic relocation added
in later patches. This patch obsoletes the symbols uboot_end and
uboot_end_data which are removed.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:13 +01:00
Daniel Schwierzeck
696a3b2a53 MIPS: start.S: optimize BSS initialization
Get the start and end address for clearing BSS from the newly
introduced symbols __bss_start and __bss_end. After GOT is
relocated, those symbols are already pointing to the correct
addresses.

Also optimize the loop by moving the address incrementation
to the delay slot to avoid the initial sub instruction.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:13 +01:00
Daniel Schwierzeck
eea8a320e1 MIPS: board.c: switch to new symbols __bss_end and __image_copy_end
Use the newly introduced symbols __image_copy_end and __bss_end
for setting up the memory area for the relocated U-Boot.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:12 +01:00
Daniel Schwierzeck
3420bf1ca0 MIPS: u-boot.lds: introduce symbol __image_copy_end
This symbol is used in later patches as end address
for relocation of the U-Boot image into RAM.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:12 +01:00
Daniel Schwierzeck
a52852c5a6 MIPS: u-boot.lds: merge all BSS sections and introduce symbols __bss_[start|end]
These symbols are used in later patches for as addresses for
clearing the BSS area in the relocated U-Boot image.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:12 +01:00
Gabor Juhos
45397816b2 MIPS: compute num_got_entries from .got section's size
The '__got_start' and '__got_end' symbols are used
only in the linker script to compute the value of
the 'num_got_entries' symbol.

Remove the symbols and use the SIZEOF(.got) command
to get the size of the .got section.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-02-12 22:22:12 +01:00
Daniel Schwierzeck
8b1c7345c6 MIPS: start.S: unify and simplify reset vector handling
Adopt reset vector handling from Yamon.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:12 +01:00
Daniel Schwierzeck
4dc7412afa MIPS: start.S: remove obsolete 64 bit handling in setup_c0_status
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12 22:22:12 +01:00
Daniel Schwierzeck
97b920dab1 MIPS: xburst: fix broken access to global_data
Fix access to global_data which is broken since commits:

commit 035cbe99cd
Author: Simon Glass <sjg@chromium.org>
Date:   Thu Dec 13 20:49:08 2012 +0000

    mips: Move per_clk and dev_clk to arch_global_data

    Move these field into arch_global_data and tidy up. The other
    CONFIG_JZSOC fields are used by various architectures, so just remove
    the #ifdef bracketing for these.

    Signed-off-by: Simon Glass <sjg@chromium.org>

commit 582601da2f
Author: Simon Glass <sjg@chromium.org>
Date:   Thu Dec 13 20:48:35 2012 +0000

    arm: Move lastinc to arch_global_data

    Move this field into arch_global_data and tidy up.

    Signed-off-by: Simon Glass <sjg@chromium.org>

commit 66ee692347
Author: Simon Glass <sjg@chromium.org>
Date:   Thu Dec 13 20:48:34 2012 +0000

    arm: Move tbl to arch_global_data

    Move this field into arch_global_data and tidy up.

    Signed-off-by: Simon Glass <sjg@chromium.org>

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-02-12 22:22:12 +01:00
Simon Glass
9572202026 mips: Use generic global_data
Move mips over to use generic global_data.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-04 09:05:45 -05:00
Simon Glass
035cbe99cd mips: Move per_clk and dev_clk to arch_global_data
Move these field into arch_global_data and tidy up. The other
CONFIG_JZSOC fields are used by various architectures, so just remove
the #ifdef bracketing for these.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-04 09:05:44 -05:00
Simon Glass
582601da2f arm: Move lastinc to arch_global_data
Move this field into arch_global_data and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01 15:07:50 -05:00
Simon Glass
66ee692347 arm: Move tbl to arch_global_data
Move this field into arch_global_data and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01 15:07:50 -05:00
Simon Glass
5cb48582ac Add architecture-specific global data
We plan to move architecture-specific data into a separate structure so
that we can make the rest of it common.

As a first step, create struct arch_global_data to hold these fields.
Initially it is empty.

This patch applies to all archs at once. I can split it if this is really
a pain.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01 15:07:49 -05:00
Gabor Juhos
cb5dbca899 MIPS: add unified u-boot.lds file
The patch adds an unified linker script file which
can be used for all currently supported MIPS targets.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
Acked-by: Stefan Roese <sr@denx.de>
2013-01-31 00:26:59 +01:00
Gabor Juhos
9950b90d38 MIPS: remove OUTPUT_FORMAT from linker scripts
The OUTPUT_FORMAT command in linker scripts
was always misused due to some endianess and
toolchain problems.

Use GCC flags to ensure proper output format,
and get rid of the OUTPUT_FORMAT commands in
the board specific u-boot.lds files.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-01-30 23:34:10 +01:00
Gabor Juhos
6d86227880 MIPS: xburst: simplify relocation offset calculation
The current code uses four instructions and a
temporary register to calculate the relocation
offset and to adjust the gp register.

The relocation offset can be calculated directly
from the CONFIG_SYS_MONITOR_BASE constant and from
the destination address. The resulting offset can
be used to adjust the gp pointer.

This approach makes the code a bit simpler because
it needs two instructions only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-01-30 23:33:27 +01:00
Gabor Juhos
025f2b3380 MIPS: simplify relocated _G_O_T_ address calculation
The difference between the address of the original
and the relocated _GLOBAL_OFFSET_TABLE_ is always
the same as the relocation offset.

The relocation offset is already computed and it is
available in the 's1/t6' register. Use that to adjust
the relocated _G_O_T_ address, instead of calculating
the offset again from the _gp value.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-01-30 23:32:52 +01:00
Gabor Juhos
67d80c9f97 MIPS: start.S: don't save flush_cache parameters in advance
Saving the parameters in advance unnecessarily complicates
the code. The destination address is already saved in the
's2' register, and that register is not clobbered by the
copy loop. The size of the copied data can be computed
after the copy loop is done.

Change the code to compute the size parameter right
before calling flush_cache, and set the destination
address parameter in the delay slot of the actuall
call.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27 16:40:15 +01:00
Gabor Juhos
248fe03f53 MIPS: start.S: simplify relocation offset calculation
The current code uses four instructions and a
temporary register to calculate the relocation
offset and to adjust the gp register.

The relocation offset can be calculated directly
from the CONFIG_SYS_MONITOR_BASE constant and from
the destination address. The resulting offset can
be used to adjust the gp pointer.

This approach makes the code a bit simpler because
it needs two instructions only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27 16:40:07 +01:00
Gabor Juhos
b2fe86f887 MIPS: start.S: save reused arguments earlier in relocate_code
Save the reused parameters at the beginning
of the 'relocate_code' function. This makes
the function a bit more readable.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27 16:39:59 +01:00
Gabor Juhos
f321b0f99f MIPS: start.S: set sp register directly
The current code uses two instructions to load
the stack pointer into the 'sp' register.

This results in the following assembly code:

    468:   3c088040        lui     t0,0x8040
    46c:   251d0000        addiu   sp,t0,0

The first instuction loads the stack pointer into
the 't0' register then the value of the 'sp' register
is computed by adding zero to the value of the 't0'
register. The same issue present on the 64-bit version
as well:

    56c:   3c0c8040        lui     t0,0x8040
    570:   659d0000        daddiu  sp,t0,0

Change the code to load the stack pointer directly
into the 'sp' register. The generated code is functionally
equivalent to the previous version but it is simpler.

  32-bit:
    468:   3c1d8040        lui     sp,0x8040

  64-bit:
    56c:   3c1d8040        lui     sp,0x8040

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27 16:39:51 +01:00
Gabor Juhos
5b7dd8163d MIPS: start.S: fix boundary check in relocate_code
The loop code copies more data with one than
necessary due to the 'ble' instuction. Use the
'blt' instruction instead to fix that.

Due to the lack of suitable hardware the Xburst
specific code is compile tested only. However the
change is quite obvious.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27 16:39:43 +01:00
Gabor Juhos
14fdd1a8bf MIPS: start{, 64}.S: fill branch delay slots with NOP instructions
The romReserved and romExcHandle handlers are
accessed by a branch instruction however the
delay slots of those instructions are not filled.

Because the start.S uses the 'noreorder' directive,
the assembler will not fill the delay slots either,
and leads to the following assembly code:

  0000056c <romReserved>:
   56c:   1000ffff        b       56c <romReserved>

  00000570 <romExcHandle>:
   570:   1000ffff        b       570 <romExcHandle>

In the resulting code, the second branch instruction
is placed into the delay slot of the first branch
instruction, which is not allowed on the MIPS
architecture.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-22 21:09:34 +01:00
Gabor Juhos
0ef48d4c89 MIPS: convert IO port accessor functions to 'static inline'
The currently used 'extern inline' directive causes
the following compiler warnings if CONFIG_SWAP_IO_SPACE
is defined:

  <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outlc_p' which is not static [enabled by default]
  <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outl_p' which is not static [enabled by default]
  <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outlc' which is not static [enabled by default]
  <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outl' which is not static [enabled by default]
  <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outwc_p' which is not static [enabled by default]
  <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outw_p' which is not static [enabled by default]
  <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outwc' which is not static [enabled by default]
  <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outw' which is not static [enabled by default]
  <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inlc_p' which is not static [enabled by default]
  <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inl_p' which is not static [enabled by default]
  <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inlc' which is not static [enabled by default]
  <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inl' which is not static [enabled by default]
  <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inwc_p' which is not static [enabled by default]
  <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inw_p' which is not static [enabled by default]
  <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inwc' which is not static [enabled by default]
  <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inw' which is not static [enabled by default]

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-22 21:07:19 +01:00
Gabor Juhos
be002d0070 MIPS: use inline directive for __in*s functions
All other IO accessor functions are using the
'inline' directive. Use that also for the __in*s
to make it consistent with the other variants.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-22 20:52:08 +01:00
Gabor Juhos
9c170e2ef4 MIPS: bootm.c: add support for 'prep' and 'go' subcommands
The bootm command supports subcommands since long time
however those subcommands are not yet usable on MIPS.

The patch is based on the ARM implementation, and it adds
support for the 'prep' and 'go' subcommands only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-16 10:52:07 +01:00
Gabor Juhos
0ea7213f63 MIPS: bootm.c: separate environment initialization
Move the environment initialization code into a
separate function. This make the code reusable
for bootm subcommands.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-16 10:52:07 +01:00
Gabor Juhos
e08634c7bf MIPS: bootm.c: separate linux jump code
Move the actual jump code into a separate function.
This make the code reusable for bootm subcommands.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-16 10:52:07 +01:00
Gabor Juhos
75a279c8f2 MIPS: bootm.c: use debug macro to print debug message
The '## Transferring control ...' message is printed
only if DEBUG is enabled. Get rid of the 'ifdef DEBUG'
statement and use the debug macro instead.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
2013-01-16 10:52:07 +01:00
Joe Hershberger
f88e09de8d mips: serial: Fix busted manual relocation
serial_initialize() must be called after relocation to adjust the
pointers to putc(), getc(), etc.  This is busted ever since the
serial driver-model-ification series.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-12-12 13:20:24 +01:00
Daniel Schwierzeck
f0c27993e4 MIPS: constify mips_io_port_base
mips_io_port_base is exported as 'extern const unsigned long mips_io_port_base;'
in arch/mips/include/asm/io.h. Thus make the variable const too.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-12-12 13:14:16 +01:00
Daniel Schwierzeck
ea40a05422 MIPS: constify address pointer in test_bit()
Fix several warnings when enabling UBIFS on MIPS:

In file included from ubifs.h:2137:0,
                 from ubifs.c:26:
misc.h: In function 'ubifs_zn_dirty':
misc.h:38:2: warning: passing argument 2 of 'test_bit' discards 'const' qualifier from pointer target type [enabled by default]
../include/asm/bitops.h:569:23: note: expected 'volatile void *' but argument is of type 'const long unsigned int *'

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-12-08 21:48:19 +01:00
Zhi-zhou Zhang
0d69d918ab MIPS: fix a latent bug on initialize $gp
If bal is 8 bytes aligned, the _gp will not be 8 bytes aligned.
then the following ld insntrustion generates a Adel exception.
So here make _gp be always aligned in 8 bytes.

Signed-off-by: Zhi-zhou Zhang <zhizhou.zh@gmail.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-12-08 21:33:07 +01:00
Tom Rini
d41b3cc16f Merge branch 'master' of git://git.denx.de/u-boot-mips 2012-11-27 20:34:51 -07:00
Zhi-zhou Zhang
8ab36d2e54 MIPS: do not initialize timestamp variable before relocate_code
Because timestamp is declared as `static', we needn't initialize
it by writing it a zero. If we do it before relocate_code, we
will write into a flash address(0xffffffffbfc0xxxx).

Signed-off-by: Zhi-zhou Zhang <zhizhou.zh@gmail.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-11-25 21:50:43 +01:00
Ilya Yanok
c60795f41d usb: use linux/usb/ch9.h instead of usbdescriptors.h
Linux usb/ch9.h seems to have all the same information (and more)
as usbdescriptors.h so use the former instead of the later one.

As a consequense of this change USB_SPEED_* values don't correspond
directly to EHCI speed encoding anymore, I've added necessary
recoding in EHCI driver. Also there is no point to put speed into
pipe anymore so it's removed and a bunch of host drivers fixed to
look at usb_device->speed instead.

Old usbdescriptors.h included is not removed as it seems to be
used by old USB device code.

This makes usb.h and usbdevice.h incompatible. Fortunately the
only place that tries to include both are the old MUSB code and
it needs usb.h only for USB_DMA_MINALIGN used in aligned attribute
on musb_regs structure but this attribute seems to be unneeded
(old MUSB code doesn't support any DMA at all).

Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
2012-11-20 00:16:06 +01:00
Marek Vasut
6c7c946cad common: Convert the U-Boot commands to LG-arrays
This patch converts the old method of creating a list of command
onto the new LG-arrays code. The old u_boot_cmd section is converted
to new u_boot_list_cmd subsection and LG-array macros used as needed.

Minor adjustments had to be made to the common code to work with the
LG-array macros, mostly the fixup_cmdtable() calls are now passed the
ll_entry_start and ll_entry_count instead of linker-generated symbols.

The command.c had to be adjusted as well so it would use the newly
introduced LG-array API instead of directly using linker-generated
symbols.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
2012-10-22 08:29:42 -07:00
Simon Glass
8dc22b00ac mips: Change global data baudrate to int
This doesn't need to be a long, so change it.

Also adjust bi_baudrate to be unsigned.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@ti.com>
2012-10-19 15:25:45 -07:00
Tom Rini
d1ff690612 Merge branch 'master' of git://git.denx.de/u-boot-mips 2012-10-17 08:57:13 -07:00
Pavel Herrmann
4d1361d867 split AU1X00 specific code from cmd_ide.c
move special case of ide_swap_read() for AU1X00 SoC into SoC-specific directory.

Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>
2012-10-17 07:59:09 -07:00
Marek Vasut
ec3fd68952 serial: Use default_serial_puts() in drivers
Replace the in-place ad-hoc implementation of serial_puts() within
the drivers with default_serial_puts() call. This cuts down on the
code duplication quite a bit.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
2012-10-17 07:55:50 -07:00
Zhi-zhou Zhang
32afad783e MIPS: add board qemu-mips64 support
Both big-endian and little-endian are tested with below commands:
Rom version: (Default, Now we config it as rom version)
qemu-system-mips64el -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic
qemu-system-mips64 -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic
Ram version:
qemu-system-mips64el -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic
qemu-system-mips64 -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic

Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-10-16 15:02:08 +02:00
Zhi-zhou Zhang
090854c826 MIPS: add support for 64 bit addressing
Prepare for upcoming mips64 support. This patch add mips64 address
support.

Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com>
[daniel.schwierzeck@gmail.com: prefer _MIPS_SZLONG in posix_types.h to fix some warnings]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-10-16 15:02:08 +02:00
Zhi-zhou Zhang
cb0a6a1ecc MIPS: don't use camel-case style
Replace camel-case style with upper-case style globally.

Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com>
2012-10-16 15:02:08 +02:00
Lucas Stach
c7e3b2b586 usb: lowlevel interface change to support multiple controllers
Carry an index in the lowlevel usb functions to make specify the
respective usb controller.

Also pass through an controller struct from lowlevel_init to the
creation of the root usb device of this controller.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Marek Vasut <marex@denx.de>
2012-10-15 11:54:00 -07:00
Marek Vasut
a382725060 serial: Remove CONFIG_SERIAL_MULTI from serial drivers
Remove the support for not-CONFIG_SERIAL_MULTI part from serial
port drivers and some board files. Since CONFIG_SERIAL_MULTI is
now enabled by default, that part is a dead code. Remove it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
2012-10-15 11:53:58 -07:00
Marek Vasut
6cb3273d11 serial: mips: Implement CONFIG_SERIAL_MULTI into JZ serial driver
Implement support for CONFIG_SERIAL_MULTI into JZ serial driver.
This driver was so far only usable directly, but this patch also adds
support for the multi method. This allows using more than one serial
driver alongside the JZ driver. Also, add a weak implementation
of default_serial_console() returning this driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-10-15 11:53:51 -07:00
Marek Vasut
0191142283 serial: mips: Implement CONFIG_SERIAL_MULTI into asc serial driver
Implement support for CONFIG_SERIAL_MULTI into asc serial driver.
This driver was so far only usable directly, but this patch also adds
support for the multi method. This allows using more than one serial
driver alongside the asc driver. Also, add a weak implementation
of default_serial_console() returning this driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-10-15 11:53:51 -07:00
Marek Vasut
7b953c5165 serial: mips: Implement CONFIG_SERIAL_MULTI into au1x00 serial driver
Implement support for CONFIG_SERIAL_MULTI into au1x00 serial driver.
This driver was so far only usable directly, but this patch also adds
support for the multi method. This allows using more than one serial
driver alongside the au1x00 driver. Also, add a weak implementation
of default_serial_console() returning this driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-10-15 11:53:51 -07:00
Daniel Schwierzeck
00d0d2ad4e malloc: remove extern declarations of malloc_bin_reloc() in board.c files
Declare malloc_bin_reloc() in malloc.h and remove all extern declarations
in various board.c files to get rid of one checkpatch.pl warning.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Andreas Bießmann <andreas.devel@gmail.com>
Cc: Jason Jin <Jason.jin@freescale.com>
Cc: Macpaul Lin <macpaul@andestech.com>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Acked-by: Andreas Bießmann <andreas.devel@gmail.com>
2012-09-26 11:08:32 -07:00
Daniel Schwierzeck
0efcdb15f9 MIPS: move CONFIG_STANDALONE_LOAD_ADDR to CPU config makefiles
Prepare for upcoming MIPS64 CPU support.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-24 00:34:47 +02:00
Daniel Schwierzeck
2c0e3de384 MIPS: factor out endianess flag handling to arch config.mk
This is CPU independent and should be configured architecture-wide.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-24 00:34:43 +02:00
Marek Vasut
d2aa5dca74 dm: mips: Import libgcc components from Linux
Import ashldr3, ashrdi3 and lshrdi3 to squash possible libgcc fp mismatch,
resulting in the following warning:

mips-linux-gnu-ld: Warning: /usr/lib/gcc/mips-linux-gnu/4.7/libgcc.a(_lshrdi3.o) uses hard float, u-boot uses soft float
mips-linux-gnu-ld: Warning: /usr/lib/gcc/mips-linux-gnu/4.7/libgcc.a(_ashldi3.o) uses hard float, u-boot uses soft float

Imported from Linux (linux-next 20120723) as of commit:

commit 72fbfb260197a52c2bc2583f3e8f15d261d0f924
Author: Ralf Baechle <ralf@linux-mips.org>
Date:   Wed Jun 7 13:25:37 2006 +0100

    [MIPS] Fix optimization for size build.

    It took a while longer than on other architectures but gcc has finally
    started to strike us as well ...

    This also fixes the damage by 6edfba1b33c701108717f4e036320fc39abe1912.

    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
[<daniel.schwierzeck@gmail.com>: removed USE_PRIVATE_LIBGCC = yes]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-17 20:13:48 +02:00
Marek Vasut
8b82cefbfc dm: mips: Fix lb60 timer code
The timer code contains more halfword writes which trigger gcc errors.
The registers are again 32bit, yet written by 16bit writes, fix this:

timer.c: In function ‘reset_timer_masked’:
timer.c:37:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
timer.c: In function ‘get_timer_masked’:
timer.c:43:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
timer.c: In function ‘timer_init’:
timer.c:86:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
timer.c:88:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
timer.c:89:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
timer.c:90:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel <zpxu@ingenic.cn>
Cc: Shinya Kuribayashi <skuribay@pobox.com>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2012-08-17 20:13:48 +02:00
Marek Vasut
36d0a42b68 dm: mips: Fix lb60 WDT control
Write the TSCR register via 32bit write instead of 16bit one.
The register is 32bit wide and bit 16 is being set, triggering
gcc overflow error and making the code broken.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel <zpxu@ingenic.cn>
Cc: Shinya Kuribayashi <skuribay@pobox.com>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2012-08-17 20:13:48 +02:00
Mike Frysinger
47fde91f0c global_data: unify global flag defines
All the global flag defines are the same across all arches.  So unify them
in one place, and add a simple way for arches to extend for their needs.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-08-09 21:46:32 +02:00
Daniel Schwierzeck
e034ea3b77 MIPS: board.c: move extern declarations to u-boot-mips.h
This fixes some remaining checkpatch.pl warnings.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-06-03 23:46:04 +02:00
Daniel Schwierzeck
ed53010441 MIPS: bootm_qemu_mips.c: make checkpatch.pl clean
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-06-03 23:46:04 +02:00
Daniel Schwierzeck
e51a6b7a6c MIPS: bootm.c: make checkpatch.pl clean
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-06-03 23:46:04 +02:00
Joe Hershberger
10cbe3b6a4 net: Fix remaining API interface breakage
These are all the files which use the API incorrectly but did not get
built using MAKEALL -a powerpc|arm.  I have no compiler for them, but
the remaining issues should be far less than without this patch.

Any outstanding issues are left to the maintainers of boards that use
these drivers.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23 14:19:21 -05:00
Mike Frysinger
de30122bb5 net: move bootfile init into eth_initialize
All arches init this the same way, so move the logic into the core
net code to avoid duplicating it everywhere else.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-15 17:32:33 -05:00
Mike Frysinger
50a47d0523 net: punt bd->bi_ip_addr
This field gets read in one place (by "bdinfo"), and we can replace
that with getenv("ipaddr").  After all, the bi_ip_addr field is kept
up-to-date implicitly with the value of the ipaddr env var.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-15 17:32:05 -05:00
Daniel Schwierzeck
6cb461b4f1 MIPS: fix endianess handling
Make endianess of target CPU configurable. Use the new config
option for dbau1550_el and pb1000 boards.

Adapt linking of standalone applications to pass through
endianess options to LD.

Build tested with:
 - ELDK 4 mips_4KC- and mips4KCle
 - Sourcery CodeBench Lite 2011.03-93

With this patch all 26 MIPS boards can be compiled now in one step by
running "MAKEALL -a mips".

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-04-02 15:54:53 +02:00
Daniel Schwierzeck
979cfeaf36 MIPS: fix inconsistency in config option for cache operation mode
Commit ab2a98b117 missed to
use the new config option in dcache_enable().

Fix this to avoid inconsistencies if someone wants to disable
and enable D-caches.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-04-02 15:54:53 +02:00
Daniel Schwierzeck
71919cf153 MIPS: board.c: fix init of flash data in bd_info
Boards with CONFIG_SYS_NO_FLASH should not forced to define
CONFIG_SYS_FLASH_BASE. In this case the flash data in bd_info
should be initialized with 0 like the other archs do.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2012-04-02 15:54:52 +02:00
Mike Frysinger
5b84dd67cf usb: replace wait_ms() with mdelay()
Common code has a mdelay() func, so use that instead of the usb-specific
wait_ms() func.  This also fixes the build errors:

ohci-hcd.c: In function 'submit_common_msg':
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1519:9: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1816:10: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1827:10: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1844:10: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1563:11: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1583:9: sorry, unimplemented: called from here
make[1]: *** [ohci-hcd.o] Error 1

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Marek Vasut <marex@denx.de>
2012-03-19 00:08:16 +01:00
Simon Glass
770605e4f9 bootstage: Replace show_boot_progress/error() with bootstage_...()
These calls should not be made directly any more, since bootstage
will call the show_boot_...() functions as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-18 21:41:39 +01:00
Simon Glass
578ac1e9ba bootstage: Make use of BOOTSTAGE_ID_RUN_OS in show_boot_progress()
This changes the number 15 as used in boot_stage_progress() to use the
new name provided for it. This is a separate patch because it touches
so many files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-03-18 20:45:57 +01:00
Wolfgang Denk
d3042862f6 arch/mips/lib/board.c: Fix GCC 4.6 build warning
Fix:
board.c: In function 'board_init_r':
board.c:262:8: warning: unused variable 's' [-Wunused-variable]

(raised for configurations without ethernet support like
vct_premium_small)

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2011-12-08 21:01:15 +01:00
Wolfgang Denk
cc257e42f3 arch/mips/lib/board.c: make (mostly) checkpatch clean
Fix all errors and all warnings except for "externs should be avoided"
which could require more extensive changes.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2011-12-08 21:01:11 +01:00
Simon Glass
98e4611f10 mips: Use getenv_ulong() in place of getenv(), strtoul
This changes the board code to use the new getenv_ulong() function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2011-10-23 23:33:19 +02:00
Anton Staaf
72d4dd4159 mips: cache: define ARCH_DMA_MINALIGN for DMA buffer alignment
Signed-off-by: Anton Staaf <robotboy@chromium.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Shinya Kuribayashi <skuribay@pobox.com>
2011-10-23 20:50:43 +02:00
Anatolij Gustschin
c4c9fbebae consolidate mdelay by providing a common function for all users
There are several mdelay() definitions in the driver and
board code. Remove them all and provide a common mdelay()
in lib/time.c.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-22 01:16:08 +02:00
Xiangfu Liu
80421fcc3e MIPS: Ingenic XBurst Jz4740 processor support
Jz4740 is a multimedia application processor targeting for mobile
devices like e-Dictionary, eBook, portable media player (PMP) and
GPS navigator.  Jz4740 is powered by Ingenic 360 MHz XBurst CPU core
(JzRISC), in which RISC/SIMD/DSP hybrid instruction set architecture
provides high integration, high performance and low power consumption.

JzRISC incorporated in Jz4740 is the advanced and power-efficient
32-bit RISC core, compatible with MIPS32, with 16K I-Cache and 16K
D-Cache, and can operate at speeds up to 400 MHz.

On-chip modules such as LCD controller, embedded audio codec, multi-
channel SAR-ADC, AC97/I2S controller and camera I/F offer a rich
suite of peripherals for multimedia application.  NAND controller
(SLC/MLC), USB (host 1.1 and device 2.0), UART, I2C, SPI, etc. are
also available.

For more info about Ingenic XBurst Jz4740:
  http://en.ingenic.cn/eng/
  http://www.linux-mips.org/wiki/Ingenic

This patch introduces XBurst CPU support in U-Boot.  It's compatible
with MIPS32, but requires a bit different cache maintenance, timer
routines, and boot mechanism using USB boot tool, so XBurst support
can go into a separate new home, cpu/xburst/.

Signed-off-by: Xiangfu Liu <xiangfu@openmobilefree.net>
Acked-by: Daniel <zpxu@ingenic.cn>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-10-10 22:06:12 +09:00
Mike Frysinger
e2a53458a7 net: drop !NET_MULTI code
This is long over due.  All but two net drivers have been converted, but
those have now been dropped.

The only thing left to do is actually delete all references to NET_MULTI
and code that is compiled when that is not defined.  So here we scrub the
core code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-10-05 22:22:16 +02:00
Mike Frysinger
476af299b0 image: push default arch values to arch headers
This pushes the ugly duplicated arch ifdef lists we maintain in various
image related files out to the arch headers themselves.

Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Tested-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-10-05 22:22:15 +02:00
Graeme Russ
9558b48af0 console: Implement pre-console buffer
Allow redirection of console output prior to console initialisation to a
temporary buffer.

To enable this functionality, the board (or arch) must define:
 - CONFIG_PRE_CONSOLE_BUFFER - Enable pre-console buffer
 - CONFIG_PRE_CON_BUF_ADDR - Base address of pre-console buffer
 - CONFIG_PRE_CON_BUF_SZ - Size of pre-console buffer (in bytes)

The pre-console buffer will buffer the last CONFIG_PRE_CON_BUF_SZ bytes
Any earlier characters are silently dropped.
2011-10-05 22:03:09 +02:00
Yao Cheng
dc344589de MIPS: mips32: fix wrong loop bound in flush_cache()
The issue is found when calling flush_cache() with zero "size" argument.
The bound of loop is miscalculated in this case and flush_cache() enters
a wrong flushing loop.

Signed-off-by: Yao Cheng <saturdaycoder@gmail.com>
Cc: Shinya Kuribayashi <skuribay@pobox.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-09-03 10:43:45 +09:00
Daniel Schwierzeck
ab2a98b117 MIPS: make cache operation mode configurable
Currently the cache operation mode is hard-coded to
CONF_CM_CACHABLE_NONCOHERENT. This is not appropiate for CPUs or SOCs
which operate at a different mode.

This patch makes the cache operation mode configurable via board config.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Acked-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-07-31 23:26:41 +09:00
Daniel Schwierzeck
7185adb48e MIPS: rename INFINEON_EBU_BOOTCFG to CONFIG_SYS_XWAY_EBU_BOOTFG
This define is a board-specific config option and should be
renamed to follow the U-Boot naming convention. Additionally,
add an explaining comment for this option.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Acked-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-07-31 23:26:41 +09:00
Andreas Bießmann
09c2e90c11 unify version_string
This patch removes the architecture specific implementation of
version_string where possible. Some architectures use a special place
and therefore we provide U_BOOT_VERSION_STRING definition and a common
weak symbol version_string.

Signed-off-by: Andreas Biemann <andreas.devel@googlemail.com>
CC: Mike Frysinger <vapier@gentoo.org>
CC: Peter Pan <pppeterpppan@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-07-28 17:22:53 +02:00
Graeme Russ
4769be21cc Timer: Remove reset_timer() for non-Nios2 arches 2011-07-26 14:53:30 +02:00
Graeme Russ
5c8404aff1 Timer: Remove set_timer completely 2011-07-26 14:52:17 +02:00
Shinya Kuribayashi
68cebb8027 MIPS: Move timer code to arch/mips/cpu/$(CPU)/
Current timer routines (arch/mips/lib/timer.c) are implemented assuming
that MIPS32 coprocessor (CP0) resources, Counter and Compare registers
in this case, are available.  But this doesn't always work.

We need to make sure that all MIPS-based systems don't necessarily use
CP0 counter/compare registers as time keeping resources.  And some MIPS
variant processors might come with different hardware specs with genuine
MIPS32 CP0 registers.

With this change, each $(CPU)/ directory can have its own timer code.

Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-05-10 00:12:31 +09:00
Daniel Schwierzeck
660da0947a MIPS: Introduce --gc-sections for MIPS
All architectures but MIPS are using --gc-sections on final linking.
This patch introduces that feature for MIPS to reduce the memory and
flash footprint.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Thomas Lange <thomas@corelatus.se>
Cc: Vlad Lungu <vlad.lungu@windriver.com>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-05-10 00:08:10 +09:00
Shinya Kuribayashi
7aa1f198c8 MIPS: Coding style cleanups on common assembly files
Fix style issues and alignments globally.  No logical changes.
- Replace C comments with AS line comments where possible
- Use ifndef where possible, rather than if !defined for simplicity
- An instruction executed in a delay slot is now indicated by a leading
  space, not by C comment

Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-05-07 00:18:13 +09:00
Shinya Kuribayashi
522171a087 MIPS: Remove mips_cache_lock() feature
As requested in commit e1390801a3 ([MIPS]
Request for the 'mips_cache_lock()' removal), such feature is no longer
needed for current MIPS implementation of U-Boot, and no one in the tree
uses it for years.

Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-05-07 00:18:13 +09:00
Wolfgang Denk
8ae86b76c6 Make STANDALONE_LOAD_ADDR configurable per board
Rename STANDALONE_LOAD_ADDR into CONFIG_STANDALONE_LOAD_ADDR
and allow that the architecture-specific default value gets
overwritten by defining the value in the board header file.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Cc: Tsi Chung Liew <tsi-chung.liew@freescale.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2011-04-12 22:58:32 +02:00
Daniel Schwierzeck
ea2f0cb35c MIPS: Au1x00: Move all Au1x00 specific code to separate subdirectory
Au1x00 is a SoC and its specific code should reside in an own
SoC subdirectory. Also add -mtune=4kc flag for CPU optimization.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Thomas Lange <thomas@corelatus.se>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-04-02 22:07:12 +09:00
Daniel Schwierzeck
6235df946e MIPS: IncaIP: Move all IncaIP specific code to separate subdirectory
IncaIP is a SoC and its specific code should reside in an own
SoC subdirectory. Also add -mtune=4kc flag for CPU optimization.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-04-02 22:07:12 +09:00
Daniel Schwierzeck
04efda7afc MIPS: Optimize the setup of CPU optimization flags
The current MIPS CPU config.mk code always expects a MIPS 4kc
core. This is not appropiate for other CPUs and SoCs.

Replace the current MIPSFLAGS code by cc-option macro and use
-march=mips32r2 as default optimization level for all MIPS32 CPUs.

Note: Since commit f62fb99941 all
toolchains with binutils prior to v2.16 are not working anymore.
As agreed with Shinya Kuribayashi the support for those toolchains
will be dropped officially with this patch.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-04-02 22:07:12 +09:00
Daniel Schwierzeck
91809608a4 MIPS: Move content of arch/mips/cpu to arch/mips/cpu/mips32
All current CPUs and SoCs are based on MIPS32 arch. The complete
code resides in the global arch/mips/cpu directory. This is not
suitable if other MIPS architectures like MIPS64 or Octeon should
be supported in the future.

To achieve this the current CPU code is moved to its own mips32
subdirectory. All MIPS32 boards have to use mips32 as config switch
in board.cfg.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Thomas Lange <thomas@corelatus.se>
Cc: Vlad Lungu <vlad.lungu@windriver.com>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-04-02 22:07:12 +09:00
Daniel Schwierzeck
b38a569901 MIPS: Purple: Remove Purple support
The Purple SoC and eval board are not actively maintained since years.
This patch removes the support completely as aggreed with Wolfgang Denk.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-04-02 22:07:12 +09:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Wolfgang Denk
2e5167ccad Replace CONFIG_RELOC_FIXUP_WORKS by CONFIG_NEEDS_MANUAL_RELOC
By now, the majority of architectures have working relocation
support, so the few remaining architectures have become exceptions.
To make this more obvious, we make working relocation now the default
case, and flag the remaining cases with CONFIG_NEEDS_MANUAL_RELOC.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2010-10-29 21:32:07 +02:00
Wolfgang Denk
25ddd1fb0a Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough.  This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool.  In the result, all definitions of this value can be
deleted from the board config files.  We have to make sure that all
files that reference such data include the new <asm-offsets.h> file.

No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-26 21:05:30 +02:00
Richard Retanubun
683e9f1ea5 board_init_r: Removed unused cmdtp variable
Follow up to commit 620f1f6a64
removed compiler warning for (now) unused cmd_tbl_t* cmdtp
2010-10-19 23:55:09 +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
55e97429d1 arm: get rid of bi_env
bi_env is nowhere used, so delete it!

Signed-off-by: Heiko Schocher <hs@denx.de>

similar patch posted from Dirk Behme Tue Jul 27 18:36:09 CEST 2010
http://lists.denx.de/pipermail/u-boot/2010-July/074542.html
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
91a76751a0 Make getenv() work before relocation.
So far, getenv() would work before relocation is most cases, even
though it was not intended to be used that way.  When switching to a
hash table based implementation, this would break a number of boards.

For convenience, we make getenv() check if it's running before
relocation and, if so, use getenv_f() internally.

Note that this is limited to simple cases, as we use a small static
buffer (32 bytes) in the global data for this purpose.

For this reason, it is also not a good idea to convert all current
uses of getenv_f() into getenv() - some of the existing use cases need
to be able to deal with longer variable values, so getenv_f() is still
needed and recommended for use before relocation.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 19:29:48 +02:00
Mike Frysinger
5700bb6352 miiphy: constify device name
The driver name does not need to be writable, so constify it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2010-08-09 11:52:29 -07:00
Wolfgang Denk
cdb749778a Rename getenv_r() into getenv_f()
While running from flash, i. e. before relocation, we have only a
limited C runtime environment without writable data segment. In this
phase, some configurations (for example with environment in EEPROM)
must not use the normal getenv(), but a special function.  This
function had been called getenv_r(), with the idea that the "_r"
suffix would mean the same as in the _r_eentrant versions of some of
the C library functions (for example getdate vs. getdate_r, getgrent
vs. getgrent_r, etc.).

Unfortunately this was a misleading name, as in U-Boot the "_r"
generally means "running from RAM", i. e. _after_ relocation.

To avoid confusion, rename into getenv_f() [as "running from flash"]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
2010-08-04 00:45:36 +02:00
Wolfgang Denk
54841ab50c Make sure that argv[] argument pointers are not modified.
The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands.  Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".

This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:

int main (int argc, char **argv)
{
	while (--argc > 0 && **++argv == '-') {
/* ====> */	while (*++*argv) {
			switch (**argv) {
			case 'd':
				debug++;
				break;
			...
			default:
				usage ();
			}
		}
	}
	...
}

The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell.  With the modification, the compiler will prevent this with
an
	error: increment of read-only location '*argv'

N.B.: The code above can be trivially rewritten like this:

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			...

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-07-04 23:55:42 +02:00
Peter Tyser
1e3827d9cf mips: Move cpu/mips/* to arch/mips/cpu/*
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:25 +02:00
Peter Tyser
819833af39 Move architecture-specific includes to arch/$ARCH/include/asm
This helps to clean up the include/ directory so that it only contains
non-architecture-specific headers and also matches Linux's directory
layout which many U-Boot developers are already familiar with.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:12 +02:00
Peter Tyser
ea0364f1bb Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk

This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:03 +02:00