project/bcm63xx/u-boot.git
12 years agoNew board support: Nokia RX-51 aka N900
Pali Rohár [Mon, 29 Oct 2012 07:54:01 +0000 (07:54 +0000)]
New board support: Nokia RX-51 aka N900

Based on previous work by: Alistair Buxton <a.j.buxton@gmail.com>

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Cc: Ивайло Димитров <freemangordon@abv.bg>
12 years agocfb_console: Add support for some ANSI terminal escape codes
Pali Rohár [Fri, 19 Oct 2012 13:30:09 +0000 (13:30 +0000)]
cfb_console: Add support for some ANSI terminal escape codes

Add optional support for some ANSI escape sequences to the
cfb_console driver. Define CONFIG_CFB_CONSOLE_ANSI to enable
cursor moving, color reverting and clearing the cfb console
via ANSI escape codes.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
12 years agoAdd power bus message definitions in twl4030.h
Pali Rohár [Fri, 19 Oct 2012 02:00:06 +0000 (02:00 +0000)]
Add power bus message definitions in twl4030.h

* Code copied from linux kernel 3.0.0 from file include/linux/i2c/twl.h
* commit 6523b148b44be38d89c2ee9865d34da30d9f5f1c

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
12 years agoarm bootm: Allow to pass board specified atags
Pali Rohár [Fri, 19 Oct 2012 02:00:04 +0000 (02:00 +0000)]
arm bootm: Allow to pass board specified atags

Board can implement function setup_board_tags which is used for adding atags

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
12 years agoam335x_evm: Enable use of UART{1,2,3,4,5}
Andrew Bradford [Thu, 25 Oct 2012 12:21:32 +0000 (08:21 -0400)]
am335x_evm: Enable use of UART{1,2,3,4,5}

Add targets of am335x_evm_uart{1,2,3,4,5} to have serial input/output on
UART{1,2,3,4,5} for use with the Beaglebone RS232 cape, am335x_evm
daughterboard, and other custom configurations.

Modify target for am335x_evm to include SERIAL1 and CONS_INDEX=1
options in order to clarify UART selection requirements.

Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
12 years agoserial: ns16550: Enable COM5 and COM6
Andrew Bradford [Thu, 25 Oct 2012 12:21:31 +0000 (08:21 -0400)]
serial: ns16550: Enable COM5 and COM6

Increase the possible number of ns16550 serial devices from 4 to 6.

Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
12 years agoam33xx: Enable UART{1,2,3,4,5} pin-mux
Andrew Bradford [Thu, 25 Oct 2012 12:21:30 +0000 (08:21 -0400)]
am33xx: Enable UART{1,2,3,4,5} pin-mux

If configured to use UART{1,2,3,4,5} such as on the Beaglebone RS232
cape or on the am335x_evm daughterboard, enable the proper pin-muxing.

Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
12 years agoam33xx: Enable UART{1,2,3,4,5} clocks
Andrew Bradford [Thu, 25 Oct 2012 12:21:29 +0000 (08:21 -0400)]
am33xx: Enable UART{1,2,3,4,5} clocks

If configured to use UART{1,2,3,4,5} such as on the Beaglebone RS232
cape or the am335x_evm daughterboard, enable the required clocks for
the UART in use.

Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
12 years agoam33xx/ddr_defs.h: rename DDR2/DDR3 defines to their actual part numbers
Peter Korsgaard [Thu, 18 Oct 2012 01:21:13 +0000 (01:21 +0000)]
am33xx/ddr_defs.h: rename DDR2/DDR3 defines to their actual part numbers

So other parts can be added.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
12 years agoam33xx: support board specific ddr settings
Peter Korsgaard [Thu, 18 Oct 2012 01:21:12 +0000 (01:21 +0000)]
am33xx: support board specific ddr settings

Move the hardcoded ddr2/ddr3 settings for the ti boards to board code,
so other boards can use different types/timings.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
[trini: Make apply with rtc32k_enable() in the file]
Signed-off-by: Tom Rini <trini@ti.com>
12 years agoam33xx: move generic parts of pinmux handling out from board/ti/am335x
Peter Korsgaard [Thu, 18 Oct 2012 01:21:11 +0000 (01:21 +0000)]
am33xx: move generic parts of pinmux handling out from board/ti/am335x

So they are available for other boards.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
12 years agoam33xx/board: use cpu_mmc_init() for default mmc initialization
Peter Korsgaard [Thu, 18 Oct 2012 01:21:10 +0000 (01:21 +0000)]
am33xx/board: use cpu_mmc_init() for default mmc initialization

So platforms can override it with board_mmc_init() if needed.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
12 years agoam33xx: move ti i2c baseboard header handling to board/ti/am335x/
Peter Korsgaard [Thu, 18 Oct 2012 01:21:09 +0000 (01:21 +0000)]
am33xx: move ti i2c baseboard header handling to board/ti/am335x/

The i2c header is specific to ti(-derived) boards, and not generic for all
am335x boards.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
[trini: Make re-apply with rtc32k_enable() applied]
Signed-off-by: Tom Rini <trini@ti.com>
12 years agoam33xx/board.c: make wdtimer/uart_base static
Peter Korsgaard [Thu, 18 Oct 2012 01:21:08 +0000 (01:21 +0000)]
am33xx/board.c: make wdtimer/uart_base static

Only used here (and uart_base only for SPL).

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
12 years agoam33xx: Add SPI SPL as an option
Tom Rini [Tue, 16 Oct 2012 13:06:07 +0000 (13:06 +0000)]
am33xx: Add SPI SPL as an option

Add the required config.mk logic for this SoC as well as the BOOT_DEVICE
define.  Finally, enable the options on the am335x_evm.

Signed-off-by: Tom Rini <trini@ti.com>
12 years agoomapimage: Add support for byteswapped SPI images
Tom Rini [Tue, 16 Oct 2012 13:06:06 +0000 (13:06 +0000)]
omapimage: Add support for byteswapped SPI images

Add MLO.byteswap as a target to spl/Makefile and un-guard the first MLO
rule so we don't have to duplicate it.

Signed-off-by: Tom Rini <trini@ti.com>
12 years agoomap3_spi: introduce CONFIG_OMAP3_SPI_D0_D1_SWAPPED
Peter Korsgaard [Wed, 17 Oct 2012 09:20:46 +0000 (09:20 +0000)]
omap3_spi: introduce CONFIG_OMAP3_SPI_D0_D1_SWAPPED

D0/D1 Swapped or not is a board property, not anything specific to
the am33xx SoC, so add a custom define for it.

At the same time correct the bit handling for the swapped mode
(DPE0 should be cleared and SI/DPE1 set).

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
12 years agoOMAP3: add video support to the mcx board
Stefano Babic [Sat, 20 Oct 2012 23:56:07 +0000 (23:56 +0000)]
OMAP3: add video support to the mcx board

Add video support to the board with the display
focaltech etm070003dh6.

Signed-off-by: Stefano Babic <sbabic@denx.de>
12 years agoVIDEO: add macro to set LCD size for DSS driver
Stefano Babic [Tue, 16 Oct 2012 04:07:05 +0000 (04:07 +0000)]
VIDEO: add macro to set LCD size for DSS driver

Signed-off-by: Stefano Babic <sbabic@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
12 years agoOMAP3: mcx: updated to new hardware revision
Stefano Babic [Tue, 16 Oct 2012 04:07:04 +0000 (04:07 +0000)]
OMAP3: mcx: updated to new hardware revision

Some GPIOs differ in the new revision board.
Previous revision are considered obsolete and
they will not anymore supported.

Signed-off-by: Stefano Babic <sbabic@denx.de>
12 years agoOMAP3: updated pinmux and environment for new revision of mcx board
Stefano Babic [Tue, 16 Oct 2012 04:07:03 +0000 (04:07 +0000)]
OMAP3: updated pinmux and environment for new revision of mcx board

The mcx board was slightly modified and the pinmux must be updated.
There is no need to support the old board, that becomes obsolete.

Signed-off-by: Stefano Babic <sbabic@denx.de>
12 years agoOMAP3: mt_ventoux: power on USB at startup
Stefano Babic [Tue, 16 Oct 2012 04:02:20 +0000 (04:02 +0000)]
OMAP3: mt_ventoux: power on USB at startup

Updated revision of the board uses GPIOs to activate
the USB ports.

Signed-off-by: Stefano Babic <sbabic@denx.de>
12 years agoam335x: Enable RTC 32K OSC clock
Vaibhav Hiremath [Thu, 8 Mar 2012 11:45:47 +0000 (17:15 +0530)]
am335x: Enable RTC 32K OSC clock

In order to support low power state, you must source kernel system
timers to persistent clock, available across suspend/resume.  In case of
AM335x device, the only source we have is, RTC32K, available in
wakeup/always-on domain.  Having said that, during validation it has
been observed that, RTC clock need couple of seconds delay to stabilize
the RTC OSC clock; and such a huge delay is not acceptable in kernel
especially during early init and also it will impact quick/fast boot
use-cases.

So, RTC32k OSC enable dependency has been shifted to
SPL/first-bootloader.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
12 years agocm-t35: clean unused defines from config
Igor Grinberg [Sun, 7 Oct 2012 01:17:34 +0000 (01:17 +0000)]
cm-t35: clean unused defines from config

Neither cm-t35, nor cm-t3730 is using OneNAND or flash.
Remove the related defines from config file.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
12 years agoconfigs: Fix usage of mmc rescan
Andrew Bradford [Mon, 1 Oct 2012 05:06:52 +0000 (05:06 +0000)]
configs: Fix usage of mmc rescan

Fix usage of 'mmc rescan' by many configs.  Proper use is
'mmc dev ${mmcdev}; mmc rescan' to set the mmc device and then rescan
the device.  'mmc rescan' itself does not take any arguments.

Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
12 years agoam33xx: Enable DDR3 for DDR3 version of beaglebone
Joel A Fernandes [Tue, 25 Sep 2012 06:49:47 +0000 (06:49 +0000)]
am33xx: Enable DDR3 for DDR3 version of beaglebone

DDR3 support is tested and working with beaglebone hardware. Include a check
for this board type and configure DDR3. The timings and other configuration
match EVM SK.

Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
Acked-by: Jason Kridner <jdk@ti.com>
12 years agoUSB: musb_udc: Make musb_peri_rx_ep check for MUSB_RXCSR_RXPKTRDY
Pankaj Bharadiya [Thu, 13 Sep 2012 09:38:16 +0000 (09:38 +0000)]
USB: musb_udc: Make musb_peri_rx_ep check for MUSB_RXCSR_RXPKTRDY

The endpoint rx count register value will be zero if it is read before
receive packet ready bit (PERI_RXCSR:RXPKTRDY) is set.

Check for the receive packet ready bit (PERI_RXCSR:RXPKTRDY) before
reading endpoint rx count register. Proceed with rx count read and
FIFO read only if RXPKTRDY bit is set.

Signed-off-by: Pankaj Bharadiya <pankaj.bharadiya@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
12 years agoarm: fdt: Relocate fdt along with other data
Simon Glass [Thu, 27 Sep 2012 15:41:55 +0000 (15:41 +0000)]
arm: fdt: Relocate fdt along with other data

Rather than leave the fdt down next to the code/data, we really should
relocate it along with everything else. For CONFIG_OF_EMBED this happens
automatically, but for CONFIG_OF_SEPARATE it does not.

Add code to copy the fdt and point to the new copy after relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
12 years agoactux[123]: Update linker script for ELDK 4.2
Tom Rini [Wed, 17 Oct 2012 10:18:29 +0000 (10:18 +0000)]
actux[123]: Update linker script for ELDK 4.2

With ELDK4.2 libserial.o is too large to fit in the area before the
environment.  Swap in libinput instead which is a little smaller.

Cc: Michael Schwingen <michael@schwingen.org>
Signed-off-by: Tom Rini <trini@ti.com>
12 years agoversatile: board configs: Use buffered writes on flash
402jagan@gmail.com [Sun, 29 Jul 2012 04:26:08 +0000 (04:26 +0000)]
versatile: board configs: Use buffered writes on flash

This patch provides a support to use buffered writes on flash
for versatile and vexpress boards.

This will certainly increase the flash writes.

Signed-off-by: Jagannadha Sutradharudu Teki <402jagan@gmail.com>
12 years agodm: Move s3c24xx USB driver to a proper place
Marek Vasut [Sat, 21 Jul 2012 05:02:22 +0000 (05:02 +0000)]
dm: Move s3c24xx USB driver to a proper place

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David Müller <d.mueller@elsoft.ch>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: U-Boot DM <u-boot-dm@lists.denx.de>
12 years agodm: wdt: arm: Move tnetv107x into drivers/watchdog/
Marek Vasut [Sat, 21 Jul 2012 05:02:21 +0000 (05:02 +0000)]
dm: wdt: arm: Move tnetv107x into drivers/watchdog/

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Oliver Brown <obrown@adventnetworks.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: U-Boot DM <u-boot-dm@lists.denx.de>
12 years agoRemove lh7a40x cpu and serial driver
Albert ARIBAUD [Mon, 8 Oct 2012 04:11:38 +0000 (04:11 +0000)]
Remove lh7a40x cpu and serial driver

Since commit 957731ed (ARM: remove broken "lpd7a40x" boards),
lh7a40x cpu and serial driver have become unused. Remove them.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
12 years agoh2200: Add support for iPAQ h2200 palmtop
Łukasz Dałek [Mon, 15 Oct 2012 07:46:54 +0000 (07:46 +0000)]
h2200: Add support for iPAQ h2200 palmtop

Add basic support for HP iPAQ h2200 palmtop. h2200 palmtop was targeted
to general consumers. It has 64 MB of RAM, 32 MB flash. No intergrated
Wi-Fi nor Ethernet. Based on Intel PXA255 processor. It was shipped with
Windows CE 4.2 operating system.

Signed-off-by: Lukasz Dalek <luk0104@gmail.com>
12 years agoMerge branch 'agust@denx.de-next' of git://git.denx.de/u-boot-staging
Tom Rini [Mon, 15 Oct 2012 20:37:22 +0000 (13:37 -0700)]
Merge branch 'agust@denx.de-next' of git://git.denx.de/u-boot-staging

12 years agotools/env: Fix build failure from missing header include
Joe Hershberger [Fri, 12 Oct 2012 10:23:37 +0000 (10:23 +0000)]
tools/env: Fix build failure from missing header include

This was introduced in:
8679d0ffdcc0beafea8e6942c0c67cf859afa18e -
COMMON: Use __stringify() instead of MK_STR()

The header is now needed since common.h is not included in this tool.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
12 years agokerneldoc: Add myself to the git-mailrc for kerneldoc
Marek Vasut [Sat, 6 Oct 2012 14:05:01 +0000 (14:05 +0000)]
kerneldoc: Add myself to the git-mailrc for kerneldoc

Add entry for kerneldoc into the git-mailrc pointing to the U-Boot ML
and myself.

Signed-off-by: Marek Vasut <marex@denx.de>
12 years agokerneldoc: Implement "Example" section handling
Marek Vasut [Sat, 6 Oct 2012 14:05:00 +0000 (14:05 +0000)]
kerneldoc: Implement "Example" section handling

The default kernel-doc strips starting spaces from every single
line in the Example section. This makes the code look bad. Thus,
implement special handling for this section.

Signed-off-by: Marek Vasut <marex@denx.de>
12 years agokerneldoc: Add nicer CSS stylesheet for HTML docs
Marek Vasut [Sat, 6 Oct 2012 14:04:59 +0000 (14:04 +0000)]
kerneldoc: Add nicer CSS stylesheet for HTML docs

Import basic CSS stylesheet for the HTML documentation. The base for
the stylesheet is taken from:

http://ds9a.nl/docbook/minimal-page.html

I customized the CSS a bit further, for example to add curvy corners
to example section and change the tint of gray. The HTML documentation
does not look that crude anymore.

Signed-off-by: Marek Vasut <marex@denx.de>
12 years agokerneldoc: Implant DocBook from Linux kernel
Marek Vasut [Sat, 6 Oct 2012 14:04:58 +0000 (14:04 +0000)]
kerneldoc: Implant DocBook from Linux kernel

Pull slightly modified version of Documentation/DocBook, the related perl
script scripts/kernel-doc and the scripts/docproc.c from Linux kernel and
implant it into U-Boot. This will allow smooth generation of kerneldoc
style documentation.

It was necessary to modify the DocBook/Makefile to work with U-Boot build
system. The changes were only minor though and involved replacing the kbuild
specific parts.

It was also necessary to replace use of variables like KERNEL_VERSION with
U_BOOT_VERSION, strings like Linux kernel with U-Boot Bootloader etc. so
the generated result actually matches.

Finally, it was necessary to adjust docproc.c, since the documentation in
U-Boot is located in doc/DocBook instead of Documentation/DocBook as is in
case of the Linux kernel.

Some parts of the DocBook Makefile are unused, but to allow easier sync with
Linux kernel, these parts are still left in. The targets enabled now are
"htmldocs" "pdfdocs" "psdocs" "xmldocs" and "cleandocs" to remove the results
of documentation build.

Linux scripts/docproc.c:
commit f0f3ca8d967462dafb815412b14ca3339b9817a6
Date:   Wed Jun 15 11:53:13 2011 +0200

Linux scripts/kernel-doc:
commit 1b40c1944db445c1de1c47ffd8cd426167f488e8
Date:   Sun Aug 12 10:46:15 2012 +0200

Linux Documentation/DocBook:
commit bb8187d35f820671d6dd76700d77a6b55f95e2c5
Date:   Thu May 17 19:06:13 2012 -0400

Signed-off-by: Marek Vasut <marex@denx.de>
12 years agoconfigs: mx6qsabre_common.h: Use default clock definitions
Fabio Estevam [Sun, 30 Sep 2012 05:07:10 +0000 (05:07 +0000)]
configs: mx6qsabre_common.h: Use default clock definitions

Since commit 50d4a707f0 (mx5/6: Define default SoC input clock frequencies)
we can use the default clock values.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
12 years agomx6qsabreauto: Add Ethernet support
Fabio Estevam [Tue, 25 Sep 2012 08:43:57 +0000 (08:43 +0000)]
mx6qsabreauto: Add Ethernet support

mx6qsabreauto has a AR8031 Gigabit PHY.

Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
12 years agomx25: Clean up lowlevel_init
Benoît Thébaudeau [Mon, 20 Aug 2012 09:00:57 +0000 (09:00 +0000)]
mx25: Clean up lowlevel_init

Clean up mx25 lowlevel_init:
 - Add comments.
 - Do not use write32 repeatedly with the same value in order not to increase
   code size.
 - Make register values configurable.
 - Use macro parameters with default values instead of literal constants.
 - Use defined macros instead of duplicating code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: John Rigby <jcrigby@gmail.com>
Cc: Matthias Weisser <weisserm@arcor.de>
12 years agomx31: Fix PDR0_CSI_PODF
Benoît Thébaudeau [Tue, 14 Aug 2012 08:43:07 +0000 (08:43 +0000)]
mx31: Fix PDR0_CSI_PODF

The CSI PODF bit-field used by the previous code for the i.MX31 CCM PDR0
register is actually composed of two bit-fields: one pre-divider and one
post-divider. This patch fixes the CCM access macros and the code using them
accordingly.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx35: Define MAX and AIPS registers
Benoît Thébaudeau [Tue, 14 Aug 2012 11:03:59 +0000 (11:03 +0000)]
mx35: Define MAX and AIPS registers

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx31: Add more CCM access macros
Benoît Thébaudeau [Tue, 14 Aug 2012 08:43:29 +0000 (08:43 +0000)]
mx31: Add more CCM access macros

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5: Optimize lowlevel_init code size
Benoît Thébaudeau [Tue, 14 Aug 2012 05:19:12 +0000 (05:19 +0000)]
mx5: Optimize lowlevel_init code size

Optimize mx5 lowlevel_init.S code size:
 - Compute values at compile time rather than at runtime where possible.
 - Assign r4 to hold the zero value rather than setting registers to 0 again and
   again.
 - Associate a function to setup_pll rather than expanding its large macro code
   multiple times.
 - Allocate constant values in section only if used.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Tested-by: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
12 years agomx6qsabreauto: Use ttymxc3 as console
Otavio Salvador [Wed, 26 Sep 2012 11:37:01 +0000 (11:37 +0000)]
mx6qsabreauto: Use ttymxc3 as console

The mx6qsabreauto console is different than mx6qsabresd so the console
configuration is now set in the board file.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>
12 years agomx25: Fix eSDHC support
Benoît Thébaudeau [Thu, 27 Sep 2012 10:28:29 +0000 (10:28 +0000)]
mx25: Fix eSDHC support

The MMC driver appropriate for the i.MX25 is fsl_esdhc, which has nothing to do
with mxcmmc.

Also, each eSDHC instance has a dedicated clock, so gd->sdhc_clk must be set
accordingly. This is good for the case only a single SDHC instance is used
(initialization made with fsl_esdhc_mmc_init()). A future patch will fix the
multi-instance use case (initialization made directly with
fsl_esdhc_initialize()).

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Eric Bénard <eric@eukrea.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
12 years agomx25: Define cpu_eth_init() only if needed
Benoît Thébaudeau [Thu, 27 Sep 2012 10:28:09 +0000 (10:28 +0000)]
mx25: Define cpu_eth_init() only if needed

The FEC is the only SoC Ethernet support available on i.MX25, so define
cpu_eth_init() only for it instead of returning a misleading success code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx25: Clean up clocks API
Benoît Thébaudeau [Thu, 27 Sep 2012 10:27:57 +0000 (10:27 +0000)]
mx25: Clean up clocks API

Use the standard mxc_get_clock() instead of exporting internal functions and
using literal constant values.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx25 clocks: Fix MXC_FEC_CLK
Benoît Thébaudeau [Thu, 27 Sep 2012 10:27:44 +0000 (10:27 +0000)]
mx25 clocks: Fix MXC_FEC_CLK

mxc_get_clock(MXC_FEC_CLK) should return the IPG clock, not the AHB clock.

Also, imx_get_fecclk() was correct but reimplemented the calculation of the IPG
clock, so remove the duplicated code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx25: Define more standard clocks
Benoît Thébaudeau [Thu, 27 Sep 2012 10:27:28 +0000 (10:27 +0000)]
mx25: Define more standard clocks

Define AHB, IPG and CSPI clocks.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx25: Clean up clock calculations
Benoît Thébaudeau [Thu, 27 Sep 2012 10:27:14 +0000 (10:27 +0000)]
mx25: Clean up clock calculations

Avoid possible overflow in clock calculations, and do not waste calls to lldiv()
to divide simple ulongs.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx25: Fix decode_pll
Benoît Thébaudeau [Thu, 27 Sep 2012 10:26:54 +0000 (10:26 +0000)]
mx25: Fix decode_pll

The MFN bit-field of the PLL registers represents a signed value. See the
reference manual.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5/6 clocks: Fix SDHC clocks
Benoît Thébaudeau [Thu, 27 Sep 2012 10:24:37 +0000 (10:24 +0000)]
mx5/6 clocks: Fix SDHC clocks

The i.MX5 eSDHC clocks were considered as coming from the IPG clock although
they have dedicated clock paths.

Also, on i.MX5/6, each SDHC instance has a dedicated clock, so gd->sdhc_clk must
be set accordingly. This is good for the case only a single SDHC instance is
used (initialization made with fsl_esdhc_mmc_init()). A future patch will fix
the multi-instance use case (initialization made directly with
fsl_esdhc_initialize()).

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Eric Bénard <eric@eukrea.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
12 years agomx51: Fix I2C clock ID check
Benoît Thébaudeau [Thu, 27 Sep 2012 10:24:13 +0000 (10:24 +0000)]
mx51: Fix I2C clock ID check

There are only 2 I²C instances on i.MX51, but 3 on i.MX53.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Fix MXC_FEC_CLK
Benoît Thébaudeau [Thu, 27 Sep 2012 10:23:58 +0000 (10:23 +0000)]
mx5 clocks: Fix MXC_FEC_CLK

The FEC clock does not come from PLL1, but from the IPG clock. The previous code
was even inconsistent with itself, returning the IPG clock as expected for
imx_get_fecclk(), but the PLL1 clock for mxc_get_clock(MXC_FEC_CLK).

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Simplify imx_get_cspiclk()
Benoît Thébaudeau [Thu, 27 Sep 2012 10:23:42 +0000 (10:23 +0000)]
mx5 clocks: Simplify imx_get_cspiclk()

The code handling the dividers was duplicated for each possible input clock, and
this function can benefit from the newly introduced get_standard_pll_sel_clk()
function instead of duplicating this mux handling code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Fix get_uart_clk()
Benoît Thébaudeau [Thu, 27 Sep 2012 10:23:23 +0000 (10:23 +0000)]
mx5 clocks: Fix get_uart_clk()

This function returned 66500000 instead of the correct lp_apm clock frequency if
the CCM.CSCMR1.uart_clk_sel mux is set to 3.

This patch fixes this issue by introducing the get_standard_pll_sel_clk()
function that will be used by future patches to handle identical muxes used by
many other clocks.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Fix get_ipg_per_clk()
Benoît Thébaudeau [Thu, 27 Sep 2012 10:23:08 +0000 (10:23 +0000)]
mx5 clocks: Fix get_ipg_per_clk()

This fixes the "IPG PERCLK" frequency printed by the clocks command. The issue
was that get_ipg_per_clk() used periph_clk instead of lp_apm in the case
CCM.CBCMR.perclk_lp_apm_sel is set.

It also fixes I²C support.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Fix get_periph_clk()
Benoît Thébaudeau [Thu, 27 Sep 2012 10:22:51 +0000 (10:22 +0000)]
mx5 clocks: Fix get_periph_clk()

In the case periph_clk comes from periph_apm_clk, the latter is selected by the
CCM.CBCMR.periph_apm_sel mux, which can source the lp_apm clock from its
input ♯2. get_periph_clk() returned 0 instead of the lp_apm clock frequency in
this case.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Fix get_lp_apm()
Benoît Thébaudeau [Thu, 27 Sep 2012 10:22:37 +0000 (10:22 +0000)]
mx5 clocks: Fix get_lp_apm()

If CCM.CCSR.lp_apm is set, the lp_apm clock is not necessarily 32768 Hz x 1024.
In that case:
 - on i.MX51, this clock comes from the output of the FPM,
 - on i.MX53, this clock comes from the output of PLL4.

This patch fixes the code accordingly.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Add and use CCSR definitions
Benoît Thébaudeau [Thu, 27 Sep 2012 10:22:22 +0000 (10:22 +0000)]
mx5 clocks: Add and use CCSR definitions

This fixes config_pll_clk(), which used 0x20 instead of 0x200 for PLL4_CLOCK.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx51: Fix USB PHY clocks
Benoît Thébaudeau [Fri, 28 Sep 2012 07:09:03 +0000 (07:09 +0000)]
mx51: Fix USB PHY clocks

The i.MX51 has a single USB PHY clock, while the i.MX53 has two. These 3 clocks
have different clock gate control bit-fields.

The existing code was correct only for i.MX53, so this patch fixes the i.MX51
use case.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Jana Rapava <fermata7@gmail.com>
Cc: Wolfgang Grandegger <wg@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
12 years agomx5: Fix clock gate values
Benoît Thébaudeau [Thu, 27 Sep 2012 10:21:22 +0000 (10:21 +0000)]
mx5: Fix clock gate values

The clock gate values are 2-bit bit-fields. Hence, setting or clearing only one
of these bits like what was done is wrong and can lead to unpredictable behavior
depending on the original value of these bit-fields.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5: Use explicit clock gate names
Benoît Thébaudeau [Thu, 27 Sep 2012 10:21:00 +0000 (10:21 +0000)]
mx5: Use explicit clock gate names

Use clock gate definitions having names showing clearly the gated clock instead
of names giving only a register field index.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5 clocks: Cleanup
Benoît Thébaudeau [Thu, 27 Sep 2012 10:20:33 +0000 (10:20 +0000)]
mx5 clocks: Cleanup

Clean up the i.MX5 clock driver:
 - Use readl() and writel() instead of their __raw_ counterparts.
 - Use the clr/setbits_le32() family of macros rather than expanding code.
 - Use accessor macros for bit-fields instead of _MASK and _OFFSET.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
12 years agomx5/6: Define default SoC input clock frequencies
Benoît Thébaudeau [Thu, 27 Sep 2012 10:19:58 +0000 (10:19 +0000)]
mx5/6: Define default SoC input clock frequencies

Define default SoC input clock frequencies for i.MX5/6 in order to get rid of
duplicated definitions.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Jason Liu <r64343@freescale.com>
Cc: Matt Sealey <matt@genesi-usa.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
12 years agoimx: Use MXC_I2C_CLK in imx i2c driver
Matthias Weisser [Mon, 24 Sep 2012 02:46:53 +0000 (02:46 +0000)]
imx: Use MXC_I2C_CLK in imx i2c driver

i2c didn't work on imx25 due to missing MXC_IPG_PERCLK. Now using
MXC_I2C_CLK on all imx systems using i2c.

Signed-off-by: Matthias Weisser <weisserm@arcor.de>
Acked-by: Stefano Babic <sbabic@denx.de>
12 years agomx25: add CPU revision 1.2
Eric Benard [Sun, 23 Sep 2012 02:03:05 +0000 (02:03 +0000)]
mx25: add CPU revision 1.2

tested on a MCIMX257CJM4A which now reports :
CPU:   Freescale i.MX25 rev1.2 at 399 MHz

Signed-off-by: Eric Bénard <eric@eukrea.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
12 years agomx6q: Add basic support for mx6qsabreauto
Fabio Estevam [Mon, 24 Sep 2012 08:09:33 +0000 (08:09 +0000)]
mx6q: Add basic support for mx6qsabreauto

mx6qsabreauto is a board based on mx6q SoC with the following features:
- 2GB of DDR3
- 2 USB ports
- 1 HDMI output port
- SPI NOR
- 2 LVDS LCD ports
- Gigabit Ethernet
- Camera
- eMMC and SD card slot
- Multichannel Audio
- CAN
- SATA
- NAND
- PCIE
- Video Input

Add very basic support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
12 years agoconfigs: mx6: Add a common config file
Fabio Estevam [Mon, 24 Sep 2012 08:09:32 +0000 (08:09 +0000)]
configs: mx6: Add a common config file

Add a common mx6 config file that can be shared between some mx6 boards.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
12 years agoi.MX6: get rid of redundant struct src_regs (dupe of struct src)
Eric Nelson [Tue, 18 Sep 2012 15:26:32 +0000 (15:26 +0000)]
i.MX6: get rid of redundant struct src_regs (dupe of struct src)

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
12 years agoi.MX6: define struct iomuxc and IOMUX_GPR2 register bitfields
Eric Nelson [Wed, 19 Sep 2012 08:32:31 +0000 (08:32 +0000)]
i.MX6: define struct iomuxc and IOMUX_GPR2 register bitfields

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Stefano Babic <sbabic@denx.de>
12 years agoi.MX6: Add ANATOP_PFD_480 bitfield constants
Eric Nelson [Wed, 19 Sep 2012 08:29:46 +0000 (08:29 +0000)]
i.MX6: Add ANATOP_PFD_480 bitfield constants

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Stefano Babic <sbabic@denx.de>
12 years agoi.MX6: define IOMUX_GPR3 register bitfields
Eric Nelson [Fri, 21 Sep 2012 11:41:42 +0000 (11:41 +0000)]
i.MX6: define IOMUX_GPR3 register bitfields

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
12 years agoi.MX6: define bitfields for CHSCCDR register
Eric Nelson [Wed, 19 Sep 2012 08:33:50 +0000 (08:33 +0000)]
i.MX6: define bitfields for CHSCCDR register

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
12 years agoi.MX6: change register name for CCM_CHSCCDR to match ref. manual
Eric Nelson [Mon, 17 Sep 2012 10:20:50 +0000 (10:20 +0000)]
i.MX6: change register name for CCM_CHSCCDR to match ref. manual

Register CCM_CHSCCDR (offset 0x34 in CCM) is named CCM_CHSCCDR in
reference manual, but was named chscdr in struct mxc_ccm_reg.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
12 years agoi.MX6: provide functional names for CCM_CCGR0-CCGR6 bit fields
Eric Nelson [Fri, 21 Sep 2012 07:33:51 +0000 (07:33 +0000)]
i.MX6: provide functional names for CCM_CCGR0-CCGR6 bit fields

Add meaningful constants for each clock channels and use them for
enabling and disabling i.MX6 clocks.

Includes an update to enable/disable the IPU1 clock in
drivers/video/ipu_common to remove IMX5x register access
when used on i.MX6 as discussed in V1:

     http://patchwork.ozlabs.org/patch/185129/

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
12 years agomx6qsabresd: Add 8-bit USDHC support
Fabio Estevam [Tue, 18 Sep 2012 09:27:49 +0000 (09:27 +0000)]
mx6qsabresd: Add 8-bit USDHC support

USDHC3 has 8 pins wired in mx6qsabresd. Configure the extra pins.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
12 years agomx6qsabresd: Add Ethernet support
Fabio Estevam [Tue, 18 Sep 2012 17:24:23 +0000 (17:24 +0000)]
mx6qsabresd: Add Ethernet support

mx6qsabresd has a AR8031 Gigabit PHY.

Add support for it.

Also increase CONFIG_SYS_MALLOC_LEN so that FEC buffer allocation does not fail.

Tested on 1Gbp and 100Mbps networks.

Suggested-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
12 years agomx6: Add basic support for mx6qsabresd board.
Fabio Estevam [Thu, 13 Sep 2012 03:18:20 +0000 (03:18 +0000)]
mx6: Add basic support for mx6qsabresd board.

mx6qsabresd is a board based on mx6q SoC with the following features:
- 1GB of DDR3
- 1 USB OTG port
- 1 HDMI output port
- SPI NOR
- LVDS panel
- Gigabit Ethernet
- Camera Connector
- eMMC and SD card slot
- Audio

Add very basic support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
12 years agomx6q: Factor out common DDR3 init code
Fabio Estevam [Thu, 13 Sep 2012 03:18:19 +0000 (03:18 +0000)]
mx6q: Factor out common DDR3 init code

Factor out common DDR3 initialization code, allowing easier maintainance of such
scripts.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
12 years agopxa: Add code to examine cpu model and revision
Lukasz Dalek [Tue, 2 Oct 2012 22:51:06 +0000 (00:51 +0200)]
pxa: Add code to examine cpu model and revision

Add function which return CPU model and revision which can be used for
cpu detection.

Signed-off-by: Lukasz Dalek <luk0104@gmail.com>
12 years agotegra: nand: add board pinmux
Lucas Stach [Sat, 29 Sep 2012 10:02:09 +0000 (10:02 +0000)]
tegra: nand: add board pinmux

Boards may require a different pinmux setup for NAND than the default one.
Add a way to call into board specific code to set this up.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra: clean up board include hell
Lucas Stach [Sat, 29 Sep 2012 10:02:08 +0000 (10:02 +0000)]
tegra: clean up board include hell

The prototypes used in board files were all scattered out, which lead to
code duplication between SPL and normal U-Boot and some prototypes not actually
being used. Consolidate this in a common board header.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra: add funcmux entry for NAND attached to KBC
Lucas Stach [Thu, 27 Sep 2012 13:04:27 +0000 (13:04 +0000)]
tegra: add funcmux entry for NAND attached to KBC

Secondary config for the Flash attachment.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra20: rework UART GPIO handling
Lucas Stach [Tue, 25 Sep 2012 20:21:14 +0000 (20:21 +0000)]
tegra20: rework UART GPIO handling

Rename board provided gpio_config_uart() to
gpio_early_init_uart() as it does the same thing as the equally
called function provided by the uart-switch code. This allows
to simply call this function in early board init whether or not
we are building with CONFIG_UART_SWITCH defined.

Also provide a weak symbol for this function, to avoid the
need to provide this function for boards that don't need any
fixup.

This patch supersedes the earlier posted
"tegra: convert gpio_config_uart to weak symbol".
Build tested with MAKEALL -s tegra20

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra20: add clock_set_pllout function
Lucas Stach [Tue, 25 Sep 2012 20:21:13 +0000 (20:21 +0000)]
tegra20: add clock_set_pllout function

Common practice on Tegra 2 boards is to use the pllp_out4 FO
to generate the ULPI reference clock. For this to work we have
to override the default hardware generated output divider.

This function adds a clean way to do so.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra20: complete periph_id enum
Lucas Stach [Tue, 25 Sep 2012 09:59:12 +0000 (09:59 +0000)]
tegra20: complete periph_id enum

Most Tegra boards output the ULPI reference clock on pad DEV2.

Complete the periph_id enum so that we are able to enable this
clock output circuit.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra: enable CONFIG_CMD_PART
Stephen Warren [Tue, 25 Sep 2012 13:32:26 +0000 (13:32 +0000)]
tegra: enable CONFIG_CMD_PART

This is extremely likely to be used from the boot.scr that Tegra's default
bootcmd locates and executes.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agoTegra20: Move some include files to arch-tegra for sharing with Tegra30
Tom Warren [Wed, 19 Sep 2012 22:50:56 +0000 (15:50 -0700)]
Tegra20: Move some include files to arch-tegra for sharing with Tegra30

The move is pretty straight-forward. ap20.h and tegra20.h were renamed to ap.h and tegra.h.
Some files remain in arch-tegra20 but 'include' a file in 'arch-tegra' with #defines & structs
that will be common between T20 and T30 HW. HW-specific #defines, etc. stay in the 'arch-tegra20'
'root' file.

All boards build OK w/MAKEALL -s tegra20. Checkpatch.pl runs clean. Seaboard works OK.

Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agoTegra20: Move some code files to common directories for upcoming Tegra30 patches.
Tom Warren [Wed, 19 Sep 2012 21:08:52 +0000 (14:08 -0700)]
Tegra20: Move some code files to common directories for upcoming Tegra30 patches.

Move files that are going to be common between T20 and T30 into 'tegra-common'
subdirs in AVP (arm720t), CPU (armv7), and shared (arch/arm/cpu/.) areas. Any
files that are left behind in '/tegra20' will be copied to '/tegra30' subdirs
and modified for that SoC. The 'common' files should need only minor changes.

Include files (arch/arm/include/asm/arch-tegra/tegra20) will be done in a
follow-on patch.

Builds fine w/MAKEALL -s tegra20. Checkpatch.pl is clean.

Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra: Rename Medcom to Medcom-Wide
Thierry Reding [Wed, 19 Sep 2012 00:37:21 +0000 (00:37 +0000)]
tegra: Rename Medcom to Medcom-Wide

Medcom is the marketing name for an older, PXA-based version of the same
device. In order to avoid confusion, rename the Tegra-based version to
the new marketing name.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotegra: Update Avionic Design vendor prefix
Thierry Reding [Wed, 19 Sep 2012 00:37:20 +0000 (00:37 +0000)]
tegra: Update Avionic Design vendor prefix

The official vendor prefix for Avionic Design is now "ad". Update the
board DTS files accordingly.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
12 years agotools: Add a README note about fw_printenv lock file
Joe Hershberger [Thu, 4 Oct 2012 08:31:00 +0000 (08:31 +0000)]
tools: Add a README note about fw_printenv lock file

Add a mention of the lock file to the README for the fw_printenv tool.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reported-by: Luka Perkov <uboot@lukaperkov.net>
12 years agoenv: Check for NULL pointer in envmatch()
Joe Hershberger [Wed, 3 Oct 2012 09:38:50 +0000 (09:38 +0000)]
env: Check for NULL pointer in envmatch()

If the pointer passed into envmatch() is NULL, return -1 instead of
crashing.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
12 years agotools/env: Serialize calls to fw_*env
Joe Hershberger [Wed, 3 Oct 2012 09:38:49 +0000 (09:38 +0000)]
tools/env: Serialize calls to fw_*env

Use a lock file at /var/lock/fw_printenv.lock.
Avoids seriously confusing the MTD driver.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
12 years agotools/env: Don't call env_init() in fw_getenv()
Joe Hershberger [Wed, 3 Oct 2012 09:38:48 +0000 (09:38 +0000)]
tools/env: Don't call env_init() in fw_getenv()

We will only call fw_getenv when the env has already been initialized.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>