Commit graph

20062 commits

Author SHA1 Message Date
Simon Glass
a10fd93cbc patman: Make command methods return a CommandResult
Rather than returning a list of things, return an object. That makes it
easier to access the returned items, and easier to extend the return
value later.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-04 14:04:33 -07:00
Simon Glass
71162e3cae patman: Add cros_subprocess library to manage subprocesses
This adds a new library on top of subprocess which permits access to
the subprocess output as it is being generated. We can therefore
give the illusion that a process is running independently, but still
monitor its output so that we know what is going on.

It is possible to display output on a terminal as it is generated
(a little like tee). The supplied output function is called with all
stdout/stderr data as it arrives.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-04 14:04:33 -07:00
Simon Glass
43bca004d6 patman: Use bright ANSI colours by default
Rather than the rather dull colours, use bright versions which normally
look better and are easier to read.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-04 14:04:33 -07:00
Simon Glass
bbd01435b9 patman: Use ANSI colours only when outputting to a terminal
It is easy to detect whether or not the process is connected to a terminal,
or piped to a file. Disable ANSI colours automatically when output is
not to a terminal.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-04 14:04:32 -07:00
Tom Rini
bc5fd908d9 Merge branch 'master' of git://www.denx.de/git/u-boot-cfi-flash 2013-04-04 12:01:27 -04:00
Albert ARIBAUD
fed029f3c3 Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master' 2013-04-04 15:44:57 +02:00
Minkyu Kang
4fdebefa45 exynos: change indentation of defines in cpu.h
Fix the indentation of some defines by tab.

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-04 20:17:50 +09:00
Albert ARIBAUD
be08abc242 Merge branch 'u-boot-imx/master' into 'u-boot-arm/master' 2013-04-04 11:49:32 +02:00
Dirk Behme
d36b39bf0d spi: mxc_spi: Fix ECSPI reset handling
Reviewing the ECSPI reset handling shows two issues:

1. For the enable/reset bit (MXC_CSPICTRL_EN) in the control reg
   (ECSPIx_CONGREG) the i.MX6 technical reference manual states:

   -- cut --
   ECSPIx_CONREG[0]: EN: Writing zero to this bit disables the block
   and resets the internal logic with the exception of the ECSPI_CONREG.
   -- cut --

   Note the exception mentioned: The CONREG itself isn't reset.

   Fix this by manually writing the reset value 0 to the whole register.
   This sets the EN bit to zero, too (i.e. includes the old
   ~MXC_CSPICTRL_EN).

2. We want to reset the whole SPI block here. So it makes no sense
   to first read the old value of the CONREG and write it back, later.
   This will give us the old (historic/random) value of the CONREG back.
   And doesn't reset the CONREG.

   To get a clean CONREG after the reset of the block, too, don't use
   the old (historic/random) value of the CONREG while doing the reset.
   And read the clean CONREG after the reset.

This was found while working on a SPI boot device where the i.MX6 boot
ROM has already initialized the SPI block. The initialization by the
boot ROM might be different to what the U-Boot driver wants to configure.
I.e. we need a clean reset of SPI block, including the CONREG.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
CC: Stefano Babic <sbabic@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
2013-04-04 10:23:09 +02:00
Stephen Warren
5eaa215607 ARM: bcm2835: fix get_timer() to return ms
Apparently, CONFIG_SYS_HZ must be 1000. Change this, and fix the timer
driver to conform to this.

Have the timer implementation export a custom API get_timer_us() for use
by the BCM2835 MMC API, which needs us resolution for a HW workaround.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2013-04-04 08:14:54 +02:00
Stefan Roese
81a4f7098b cfi_flash: Use uintptr_t for casts from u32 to void *
This fixes this build warning:

Configuring for qemu_mips64 - Board: qemu-mips64, Options: SYS_BIG_ENDIAN
   text    data     bss     dec     hex filename
 215344   13082  218720  447146   6d2aa qemu_mips64/u-boot
cfi_flash.c: In function 'flash_map':
cfi_flash.c:217:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@ti.com>
2013-04-04 07:07:30 +02:00
Tom Rini
c8142633e1 Prepare v2013.04-rc2
Signed-off-by: Tom Rini <trini@ti.com>
2013-04-03 15:02:40 -04:00
Javier Martinez Canillas
7a3f481c6d i.MX6: mx6qsabrelite: README: don't pass chip-select to sf probe command
board/freescale/mx6qsabrelite/README explain a procedure to
update the SPI-NOR on the SabreLite board without Freescale
manufacturing tool but following this procedure leads to both
"sf erase" and "sf write" failing on a mx6qsabrelite board:

MX6QSABRELITE U-Boot > sf probe 1
MX6QSABRELITE U-Boot > sf erase 0 0x40000
SPI flash erase failed
MX6QSABRELITE U-Boot > sf write 0x10800000 0 0x40000
SPI flash write failed

This is because the chip-select 1 is wrong and the correct
value is 0x7300.

Since commit c1173bd0 ("sf command: allow default bus and chip selects")
the chip-select and bus arguments for the sf probe command are optional
so let's just remove it and use "sf probe" instead.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
2013-04-03 12:15:17 +02:00
Fabio Estevam
d8e9eb9c04 wandboard: Remove CONFIG_SYS_FSL_USDHC_NUM
CONFIG_SYS_FSL_USDHC_NUM is not used for wandboard.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 11:40:44 +02:00
Fabio Estevam
773d56d40d mx6qsabrelite: Remove duplicate 'mmc dev'
No need to call 'mmc dev' twice.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 11:40:44 +02:00
Fabio Estevam
69089245c2 wandboard: Remove duplicate 'mmc dev'
No need to call 'mmc dev' twice.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 11:40:44 +02:00
Fabio Estevam
38e7007725 mx6: Fix get_board_rev() for the mx6 solo case
When booting a Freescale kernel 3.0.35 on a Wandboard solo, the get_board_rev()
returns 0x62xxx, which is not a value understood by the VPU
(Video Processing Unit) library in the kernel and causes the video playback to
fail.

The expected values for get_board_rev are:
0x63xxx: For mx6quad/dual
0x61xxx: For mx6dual-lite/solo

So adjust get_board_rev() accordingly and make it as weak function, so that we
do not need to define it in every mx6 board file.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Eric Nelson <eric.nelson@boundarydevices.com>
2013-04-03 11:36:34 +02:00
Alexandre Pereira da Silva
50cea244fe mx23_olinuxino: Fix netboot console
The netargs variable was referencing the non-existing variable
console_mainline. Change that to console variable instead.

Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 11:28:40 +02:00
Abbas Raza
aad4659a2f mmc: i.MX6: fsl_esdhc: Define maximum bus width supported by a board
Maximum bus width supported by some i.MX6 boards is not 8bit like
others. In case where both host controller and card support 8bit transfers,
they agree to communicate on 8bit interface while some boards support only 4bit interface.
Due to this reason the mmc 8bit default mode fails on these boards. To rectify this,
define maximum bus width supported by these boards (4bit). If max_bus_width is not
defined, it is 0 by default and 8bit width support will be enabled in host
capabilities otherwise host capabilities are modified accordingly.

It is tested with a MMCplus card.

Signed-off-by: Abbas Raza <Abbas_Raza@mentor.com>
cc: stefano Babic <sbabic@denx.de>
cc: Andy Fleming <afleming@gmail.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
2013-04-03 11:26:28 +02:00
Otavio Salvador
2feae93ac0 mx23_olinuxino: Change definitions to use spaces instead of tabs
Change all "#define/ifdef<TAB>" sequences into "#define/ifdef<SPACE>".

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 11:26:12 +02:00
Benoît Thébaudeau
d37b33481d mx25pdk: Enable imxdi RTC
The mx25pdk board supports the i.MX25 DryIce RTC (imxdi), so enable it. This
allows to compile-test the imxdi driver in the mainline tree.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-04-03 11:26:12 +02:00
Fabio Estevam
55600288ab mx6qsabrelite: README: No need to pass 'u-boot.imx'
The u-boot.imx binary is generated by default, so no need to pass it in the
'make' line.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-04-03 10:57:42 +02:00
Fabio Estevam
ab461be65d mx28evk: Introduce a new target for saving env vars to NAND
Introduce 'mx28evk_nand' target for saving environment variables into NAND.

The mx28evk board does not come with a NAND flash populated from the
factory. It comes with an empty slot (U23), which allows the insertion of a
48-pin TSOP flash device.

Tested with a K9LBG08U0D.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 10:55:18 +02:00
Otavio Salvador
85449dbd4b mx6qsabre{sd,auto}: Add boot mode select
Adds support for 'bmode' command which let user to choose where to
boot from; this allows U-Boot to load system from another storage
without messing with jumpers.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 10:41:51 +02:00
Otavio Salvador
60bb462148 mx6qsabresd: Fix card detection for invalid card id case
This changes the code so in case an unkown value is passed it will
return as invalid.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 10:41:28 +02:00
Otavio Salvador
28ff917c28 mx6qsabresd: Document the mapping of USDHC[2-4]
This documents the SD card identifier so it is easier for user to spot
which card number will be used, if need.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2013-04-03 10:40:13 +02:00
Linus Walleij
b2da80384e biosemu: include <asm/io.h> header
This makes sure we have inline functions such as inb/outb that
are used in these two files by including the arch-specific
<asm/io.h> header. However the ARM version does not provide the
accessors unless the config symbol __io is also defined so add
that in front of the include.

After this the bios emulator will compile on ARM systems.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-02 16:23:35 -04:00
Stephen Warren
9fd383724c mmc: don't allow extra cmdline arguments
The "mmc rescan" command takes no arguments. However, executing
"mmc rescan 1" succeeds, leading the user to believe that MMC device 1
has been rescanned. In fact, the "current" MMC device has been
rescanned, and the current device may well not be 1. Add error-checking
to the "mmc" command to explicitly reject any extra command-line
arguments so that it's more obvious when U-Boot isn't doing what the
user thought they asked it to.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-02 16:23:35 -04:00
Albert ARIBAUD
5993053fa4 replace last __bss_end__ occurrences with __bss_end
Simon Glass' commit 3929fb0a14,
which changed all occurrences of __bss__end__ into __bss_end,
left behind some untouched __bss_end__ occurrences in all 33
u-boot.lds.debug files, in board/mousse/u-boot.lds.ram and
in board/mousse/u-boot.lds.rom. These are replaced here.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2013-04-02 16:23:34 -04:00
Marc Dietrich
8faefadb73 disk: fix unaligned access in efi partitions
start_sect is not aligned to a 4 byte boundary thus causing exceptions
on ARM platforms. Access this field via the get_unaligned_le32 macro.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
2013-04-02 16:23:34 -04:00
Stephen Warren
795659dc1c README: document the requirements for CONFIG_SYS_HZ
CONFIG_SYS_HZ must be 1000, and get_timer() must therefore return ms.
Document this.

README text provided by Tom Rini.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2013-04-02 16:23:34 -04:00
Vadim Bendebury
b343bbb528 build: Fix make errors generated when building 'distclean'
It was noticed that when `make distclean' is run, the make process
terminates with error reporting something like:

rm: cannot remove '/tmp/foobar/': Is a directory
make: *** [clobber] Error 1

The problem is that the list of files targeted for removal includes a
directory in case CONFIG_SPL_TARGET is not set.

The fix has been tested as follows:

 Ran several times the following sequence of commands:

     CROSS_COMPILE=/usr/bin/arm-linux-gnueabi- make O=/tmp/foobar smdk5250_config
     CROSS_COMPILE=/usr/bin/arm-linux-gnueabi- make O=/tmp/foobar distclean

 it did not cause an error, it used to before this change.

Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2013-04-02 16:23:34 -04:00
Rob Herring
60d7d5a631 env: fix potential stack overflow in environment functions
Most of the various environment functions create CONFIG_ENV_SIZE buffers on
the stack. At least on ARM and PPC which have 4KB stacks, this can overflow
the stack if we have large environment sizes. So move all the buffers off
the stack to static buffers.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-04-02 16:23:34 -04:00
York Sun
c17b94ec5e MAKEALL: Fix case substitution for old bash
Bash ver 3.x doesn't support the parameter expansion with case
substitution. Use tr instead.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Allen Martin <amartin@nvidia.com>
2013-04-02 16:23:34 -04:00
Jagannadha Sutradharudu Teki
74de8c9a16 dts/Makefile: Build the user specified dts
This patch provides a support to build the user specified dts.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Acked-by: Simon Glass <sjg@chromium.org>
2013-04-02 16:23:34 -04:00
Jagannadha Sutradharudu Teki
c502321c4a mtd: cfi_flash: Write buffer size adjustment for M29EW Numonyx devices
This patch addjusted the write buffer size for M29EW devices those
are operated in 8-bit mode.

The M29EW devices seem to report the CFI information wrong when
it's in 8 bit mode.

There's an app note from Numonyx on this issue and there's a patch
in the open source as well for Linux, but it doesn't seem to be in mainline.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Tested-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2013-04-02 14:27:54 +02:00
aaron.williams@caviumnetworks.com
239cb9d904 mtd: cfi_flash: Fix CFI flash driver for 8-bit bus support
This commit is based on that patch from aaron.williams@caviumnetworks.com
with same commit title. pulled the same code changes into current u-boot tree.

http://patchwork.ozlabs.org/patch/140863/
http://lists.denx.de/pipermail/u-boot/2011-April/089606.html

This patch corrects the addresses used when working with Spansion/AMD FLASH chips.
Addressing for 8 and 16 bits is almost identical except in the 16-bit case the
LSB of the address is always 0.  The confusion arose because the addresses
in the datasheet for 16-bit mode are word addresses but this code assumed it was
byte addresses.

I have only been able to test this on our Octeon boards which use either an 8-bit
or 16-bit bus.  I have not tested the case where there's an 8-bit part on a 16-bit
bus.

This patch also adds some delays as suggested by Spansion.

If a part can be both 8 and 16-bits, it forces it to work in 8-bit mode if an
8-bit bus is detected.

Apart from the pulled changes, fixed few minor code cleanups and tested
on 256M29EW, 512M29EW flashes.

Before this fix:
---------------
Bank # 1: CFI conformant flash (8 x 8)  Size: 64 MB in 512 Sectors
  AMD Standard command set, Manufacturer ID: 0xFF, Device ID: 0xFF
  Erase timeout: 4096 ms, write timeout: 2 ms
  Buffer write timeout: 5 ms, buffer size: 1024 bytes

After this fix:
--------------
Bank # 1: CFI conformant flash (8 x 8)  Size: 64 MB in 512 Sectors
  AMD Standard command set, Manufacturer ID: 0x89, Device ID: 0x7E2301
  Erase timeout: 4096 ms, write timeout: 2 ms
  Buffer write timeout: 5 ms, buffer size: 1024 bytes

Signed-off-by: Aaron Williams <aaron.williams@caviumnetworks.com>
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Tested-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2013-04-02 14:27:45 +02:00
York Sun
472d546054 Consolidate bool type
'bool' is defined in random places. This patch consolidates them into a
single header file include/linux/types.h, using stdbool.h introduced in C99.

All other #define, typedef and enum are removed. They are all consistent with
true = 1, false = 0.

Replace FALSE, False with false. Replace TRUE, True with true.
Skip *.py, *.php, lib/* files.

Signed-off-by: York Sun <yorksun@freescale.com>
2013-04-01 16:33:52 -04:00
Akshay Saraswat
07cd5c7495 Exynos: pwm: Remove dead code of function exynos5_get_pwm_clk
As we shall now be using clock_get_periph_rate function.
We find no reason for keeping code in function exynos5_get_pwm_clk.
Hence, removing it.

Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Padmavathi Venna
e2338704c0 Exynos: pwm: Use generic api to get pwm clk freq
Use generic api to get the pwm clock frequency

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Padmavathi Venna
f9e4d046e0 Exynos: clock: Correct pwm source clk selection
MPLL is selected as the source clk of pwm by default

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Padmavathi Venna
12a46a384d Exynos: clock: Add generic api to get the clk freq
Add generic api to get the frequency of the required peripherial. This
API gets the source clock frequency and returns the required frequency
by dividing with first and second dividers based on the requirement.

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Padmavathi Venna
394d64e45b Exynos: Add peripherial id for pwm
Add peripherial id for pwm inorder to support
generic api to get the clk frequency

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Gabe Black
92809eeed2 Exynos: Tidy up the pwm_config function in the exynos pwm driver
Some small fixes in the exynos pwm driver:

1. NS_IN_HZ is non-sensical since these are not compatible units. This
constant actually describes the number of nanoseconds in a second. Renamed it
to NS_IN_SEC. Also dropped the unnecessary parenthesis.
2. The variable "period" is not used to hold a period, it's used to hold a
frequency. Renamed it to "frequency".
3. tcmp is an unsigned value, so (tcmp < 0) will never be true and the if
which checks that condition will never execute. Also, there should be no
problem if the pwm never switches, so there's no reason to subtract one from
tcmp and therefore no reason to compare it against zero. Removed both ifs. If
they weren't removed, tcmp should be a signed value.
4. Add a check for a 0 period.

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Gabe Black
34b5ee1f6a Exynos: Avoid a divide by zero by specifying a non-zero period for pwm 4
The pwm_config function in the exynos pwm driver divides by its period
period parameter. A function was calling pwm_config with a 0ns period and a
0ns duty cycle. That doesn't actually make any sense physically, and results
in a divide by zero in the driver. This change changes the parameters to be a
100000ns period and duty cycle.

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Gabe Black
c059f274ad Exynos: pwm: Fix two bugs in the exynos pwm configuration code
First, the "div" value was being used incorrectly to compute the frequency of
the PWM timer. The value passed in is a constant which reflects the value
that would be found in a configuration register, 0 to 4. That should
correspond to a scaling factor of 1, 2, 4, 8, or 16, 1 << div, but div + 1 was
being used instead.

Second, the reset value of the timers were being calculated to give an overall
frequency, thrown out, and set to a maximum value. This was done so that PWM 4
could be used as the system clock by counting down from a high value, but it
was applied indiscriminantly. It should at most be applied only to PWM 4.

This change also takes the opportunity to tidy up the pwm_init function.

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Che-Liang Chiou
f24869d3a8 Exynos: Add timer_get_us function
timer_get_us returns the time in microseconds since a certain reference
point of history.  However, it does not guarantee to return an accurate
time after a long period; instead, it wraps around (that is, the
reference point is reset to some other point of history) after some
periods. The frequency of wrapping around is about an hour (or 2^32
microseconds).

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained

Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Simon Glass
3d00c0cb96 Exynos: Change get_timer() to work correctly
At present get_timer() does not return sane values. It should count up
smoothly in milliscond intervals.

We can change the PWM to count down at 1MHz, providing a resolution
of 1us and a range of about an hour between required get_timer() calls.

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
Akshay Saraswat
4f3bfa97c4 Exynos5: config: enable time command
This patch enables time command.

Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:07 +09:00
Tom Rini
5644369450 Merge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging 2013-03-31 08:43:12 -04:00