ARM startup: invalidate I-cache before jumping to relocated binary

barebox can startup with I-cache enabled, so to be on the safe
side we should invalidate the I-cache before jumping to a binary
we just copied in place.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
ARM: remove unused struct param_struct and related info.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fix big endian MMIO primitives.

cpu_read*() and cpu_wrire*() are precisely equal to __raw_read*() and
__raw_write*().

Striving for correctness we can replace all those __raw_*() with cpu_*()
as that's exactly what the former ones do.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
ARM: put a valid "barebox" signature in the header on big-endian systems.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
MIPS: start.S: add "barebox" label at _start + 0x10

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
MIPS: bootm: add "MIPS barebox" handler

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
ppc io.h: update following MMIO primitives fix

Following the MMIO primitives fix, the definitions of __raw_* function
is sourced from Linux and added.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
ppc reloc.S: use a common trap relocation function

The trap relocation function trap_reloc can be used across several PPC
platforms and is added to the ppc library. Accordingly, the definition
of trap_reloc is removed from mach-mpc5xxx/start.S

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
i2c: Fix barebox crash when 'count' is not set for i2c_read command

Running i2c_read without the 'count' setting causes an error and reboots.

barebox@Phytec phyCORE-i.MX27:/ i2c_read -b 1 -a 0x4a -r 0x00
ERROR: out of memory
no stack data available

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
fix typo addreee -> address

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
i2c: Added switch for allowing usage 16bit register addresses

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
MIPS: add common header file for DEBUG_LL via NS16550

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
MIPS: malta: use common DEBUG_LL code for NS16550

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
NOR flash: reduce size of cfiword_t if not using 64-bit bus.

This is done to reduce the binary size a bit.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
defaultenv: don't overwrite $user in config

This patch prooved to be useful while working with a colleague on a single
machine. It allows to switch the user without editing /env/config by
just issuing:

	export user=me

. Note, in bash this construct (i.e. an if without body) bails out with:

	Syntax error: "fi" unexpected

but in hush it seems to do the right thing.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
PCM038: Update board description

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
PCM038: Call power_init() after initializing SPI.

Power and frequency should be setup before initialize other devices.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
PCM038: Remove unused includes

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
PCM038: Initial PCM970 development board support

Some devices need to be moved to the PCM970 source file later, because
in fact these devices are not installed on the main unit PCM038.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
parameter: return empty string for unset parameters

Currently we return NULL for unset parameters. As we can't set them
back to NULL once set this is not very consistent. Return an empty
string instead.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>