Similar to mount(8) the barebox command mount now supports passing a string
to the file system driver via -o.
This is used in the next commit to let the user specify port numbers for
nfs mounts.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
default_environment_path only exists when CONFIG_ENV_HANDLING is enabled.
Boards would have to #ifdef this if they wanted to use
default_environment_path. Use accessor functions instead which can
be ifdeffed on a single place.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Storing the boot information in the image itself and passing a pointer
around between images is cumbersome and doesn't fit well with multiimage
support where the pointer we pass around is already occupied by the
devicetree.
Do the same as U-Boot does and store the boot information at the bottom
of the SRAM public stack.
To maintain the compatibility between new xloaders and older barebox
binaries we still pass the boot information to the next stage via pointer.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a devicetree-only driver for to configure the gpmc and its
child devices from dt. Currently only NAND is supported.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- make debug messages more meaningful
- calculate value once and use it to print and configure instead
of calculating it twice
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Broken since:
| commit 72e561b5e8
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date: Fri Jul 19 12:07:05 2013 +0200
|
| ARM: omap4: Use writel where appropriate
|
| Instead of making a pure 32bit write to a read/modify/write
| operation with sr32 use writel directly. This saves a few bytes
| of binary space.
|
| Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
|
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This introduces a single omap_init function which detects the
SoC and does all further SoC initialization. This is done to get
rid of initcalls without proper SoC protection. The same has been
done for i.MX already.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The omap3 and omap4/am33xx spi cores differ in the offset of the
registers in the address space. Instead of encoding this into the
resources use the platform_device_id mechanism. This is done in
preparation for devicetree probe support where the address space
is in the devicetree and can't be adjusted.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch provides a global cleanup barebox Kconfig files. This includes
replacing spaces to tabs, formatting in accordance format.
No functional changes.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
For DDR2 RAMs, regs->zq_config is not used, which causes the
AM33XX_EMIF4_0_REG(SDRAM_CONFIG) register to be left unconfigured, resulting
in boot failure.
It seems that the DDR2 case was missed during the consolidation in commit
9f122f8bf0. The actual call for the Bone was
removed in 88659d9c4a.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The function am33xx_get_cpu_rev may be called before barebox_arm_entry(),
so we need to avoid switch statements. One example is the BeagleBone,
where we use this function to differenciate between the white and black
variants.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The driver didn't work well with at24 driver. NACKS are lost.
Errors are lost in isr due to the local variable err. Also we didn't wait for
bus free in omap_i2c_xfer_msg.
Fix issues and get other improvements from linux kernel
Tested on OMAP4 and AM335x
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The OMAP ROM code passes the boot information via r0 to the
bootloader. Add an OMAP specific barebox handler to pass this
information to the next stage. This allows us to chainload
bootloaders without loosing the information where we booted from.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Include mach/generic.h where omap_set_bootmmc_devname is declared.
Change the argument of omap_set_bootmmc_devname to const char *
to fix the resulting conflicting prototypes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There is a lot of duplicate lowlevel code between the
am33xx boards. Move this code to am33xx_generic and
create structs for sdram settings.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Function should use lower case letters. Also give this function
more namespace. While at it include io.h rather than asm/io.h.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
omap_save_bootinfo derefences the argument passed to barebox without
checking it for validity. This breaks 2nd stage booting where r0
is undefined. The best we can do is to check whether the pointer is
somewhere in SRAM and is word aligned. This at least makes sure that
we do not oops. This introduces SoC specific xxx_save_bootinfo variants
since the SRAM addresses/sizes differ between SoCs.
Additionally fix the prototype for omap_save_bootinfo. It uses r0, so
it must be passed this variable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a omap_set_bootmmc_devname function which can be used
to specify the MMC boot device. In an xload configuration this
is then used to load the next stage. In a regular build this is
used to mount /boot.
Also a device_detect_by_name is added to allow to disable probing
for sd/mmc cards during startup.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-Added mlo spi NOR copy handler
-This handler will convert the MLO to big endian
-Tested with pcm051 board
Signed-off-by: shravan <shravan.k@phytec.in>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The oscillator frequency varies on different AM33xx boards.
Pass the osc frequency from lowlevel board code
to set the correct one on every board.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Reviewed-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
gpiolib user have nothing to define in their machine
specific gpio.h, so do not include it.
The only thing they could define would be ARCH_NR_GPIOS,
but currently no architecture defines it. Should an architecure
feel the need to do it this would be a good opportunity to
get rid of this limitation.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Uwe Kleine-König
Sascha Hauer
Vicente Bergas
Alexander Shiyan
Jan Luebbe
Jan Weitzel
Teresa Gámez
shravan