These cache functions have been extracted from
arch/arm/boot/compressed/head.S. The old code only worked
properly on ARMv4. Tested on ARMv4, ARMv5, ARMv6 hardware.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Using these macros simplify the configuration for special GPIO usage. But they
should use correct bit positions for usage in the IOMUX_PAD() macro.
Note: These are the bit positions of the i.MX35 CPU. Not checked for the other
i.MX3x CPUs.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch fixes a alignment problem which may show during this
scenario:
- 32 or 64 attached NOR flash
- flashing an image directly from network to the nor flash
The involved network driver is "smc9111.c".
The data that comes from the network stack and should be written into
the flash isn't 32 bit alligned (at least with this network driver).
This is probably due to the 48 bit wide ethernet addresses.
However the "cfi_flash.c" driver doesn't handle this situation, and
accesses the not-alligned address with a 32 bit pointer.
This patch fixes the problem by reducing the access width if an
alligment problem between source and destination is found.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On my little endian PXA270, the ethernet address is byte swapped:
correct ethernet address: 00:50:c2:80:a7:bd
broken ethernet address: 50:00:80:c2:bd:a7
The correct value is what the sticker on the baoard and the linux driver
says. This patch fixes the problem by reading the ethaddr byte-wise from
the eeprom.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Recent changes to the nand_imx driver broke it for i.MX21 systems;
the i.MX21 NAND controller is more akin to the one in i.MX27/i.MX31,
than to the one in i.MX25/i.MX35.
Signed-off-by: Ivo Clarysse <ivo.clarysse@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On at91 we talk directly to the reset controller to reset the cpu,
rather than use the watchdog, so update the comment to match.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Export mc13892_reg_read, mc13892_reg_write and mc13892_set_bits
function instead of exposing the i2c interface.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Export mc9sdz60_reg_read, mc9sdz60_reg_write and mc9sdz60_set_bits
function instead of exposing the i2c interface.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This allows to properly setup the voltage on LCD pins at boot.
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Commit a3ffa97f (rename U-Boot-v2 project to barebox) also changed the
U-Boot references to Barebox in the getopt description, which doesn't
make much sense.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We claim to be compatible with the kernel's cmdlinepart parser, so
support <size>@<offset> like the kernel does.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Other architectures are supporting the uImage format used by barebox's 'bootm'
command. x86 does'nt. So, we need a special command to be able to boot the
x86 specific bzImage format.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is a low level disk drive communication driver. It uses the real mode
BIOS found on most x86 platforms, to read and write sectors. Used by the
generic disk driver.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is the generic disk driver. It does not know how to access the drives.
Other low level drivers are required for this.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add the basic files, declarations and folders to bring in ATA support.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This code uses the always (hopefully) existing PIT device to get the time
reference for barebox.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This code adds a generic x86 platform, enabling barebox to act as a
bootloader like 'GRUB'. Very minimalistic, yet. Supports only a serial console
and is tested with QEMU only.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
These functions are special: They are running in the 16 bit real mode world
to bring up barebox on an x86 box.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add some generic functions to make barebox work on x86.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add some generic required code to make barebox work on x86.
Note: Resetting the CPU is unfinished yet. I need some ideas how to reset
this kind of architecture gracefully.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add architecture header files. Some of these files are empty, they only must
exists to make the build system happy.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On x86 'objdump' does not know which parts of the image are 16 bit code and
32 bit. As the default is 32 bit, it will output garbage from the 16 bit parts
(due to 16/32 bit ops are sharing the same opcodes).
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To use barebox as a BIOS based bootloader for x86 architectures, the binary
must be patched to get it bootstrapped at runtime. The 'setupmbr' tool installs
the barebox-binary to the given device node or image file and patch it in
accordance to the needed sector information at runtime.
Signed-off by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Juergen Beisert
Marc Kleine-Budde
Ivo Clarysse
Peter Korsgaard
Eric Benard
Matthias Kaehlcke