UBI: fastmap: fix backward compatibility with image_seq ...

Some old UBI implementations (e.g. U-Boot) have not implemented the image
sequence feature.
So, when erase blocks are written, the image sequence in the ec header
is lost (set to zero).
UBI scan_all() takes this case into account (commits
32bc482 and
2eadaad)

But fastmap scan functions (ubi_scan_fastmap() and scan_pool()) didn't.

This patch fixes the issue.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

UBI: Call scan_all() with correct offset in error case ...

If we find an invalid fastmap we have to scan from the very beginning.
Otherwise we leak the first 64 PEBs.

Reported-and-tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

UBI: Fix error path in scan_pool() ...

We have to set "ret", not "err" in case of an error.

Reported-and-tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

UBI: fix refill_wl_user_pool() ...

If no free PEBs are available refill_wl_user_pool() must not
return with -ENOSPC immediately.
It has to block till produce_free_peb() produced a free PEB.

Reported-and-Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

UBI: Fix invalidate_fastmap() ...

Onging tests uncovered that invalidate_fastmap() is broken.
It must not call ubi_wl_put_fm_peb() because all PEBs used
by the old fastmap have already been put back.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

UBI: Fix PEB leak in wear_leveling_worker() ...

get_peb_for_wl() removes the PEB from the free list.
If the WL subsystem detects that no wear leveling is needed
it cancels the operation and drops the gained PEB.
In this case we have to put the PEB back into the free list.

This issue was introduced with commit ed4b7021c
(UBI: remove PEB from free tree in get_peb_for_wl()).

Cc: <stable@vger.kernel.org> # 3.7.x
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

ARM: boot barebox with kernel calling convention ...

Start a 2nd stage barebox with the Linux Kernel calling convention.
Right now barebox does not interpret ATAGs or devicetree passed
to it, but it doesn't hurt to pass parameters so that future bareboxes
can use them.

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

ARM: remove armlinux_set_bootparams() calls from boards ...

As the place for the atags now is determined automatically the call
from the boards can be removed.

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

ARM: start kernel: find a valid address for the atags list automatically ...

If a board does not specify a place for the atags list default to
SDRAM start + 0x100. The vast majority of boards uses this place
anyway, so the call to armlinux_set_bootparams() can be removed
for most boards.

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

lib: libubigen math compile error fix ...

A compile error appears in libubigen on PXA architecture, because of a
division of an long long by a int :
/home/rj/mio_linux/barebox/lib/libubigen.c:105: undefined reference to
`__aeabi_ldivmod' arm-linux-gnueabi-ld: BFD (GNU Binutils for Debian)
2.20.1.20100303 assertion fail ../../bfd/elf32-arm.c:12497

Fix it by using div_u64 instead.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

oftree command: Allow free stored dtb before load ...

Don't return after freeing stored devicetree if also loading ist wanted.
Allow  "oftree -f -l my.dtb"

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'pu/mtd'

net/phy/phy.c: fix whitespace ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net/phy: add driver for LXT PHYs ...

Based on Linux kernel 3.12 driver.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

miitool: drop internal table of known MII, use phy drivers instead ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

miitool: add initial GbE support ...

The GbE support based on the patch for generic 'mii-tool', see
 http://ftp.debian.org/debian/pool/main/n/net-tools/net-tools_1.60-24.2.diff.gz

We need to note Jean-Christophe PLAGNIOL-VILLARD for his
initial GbE support patch:
 http://lists.infradead.org/pipermail/barebox/2013-February/012634.html

Generic 'mii-tool' GbE support patch has some disadvantages:
1. 1000baseT-HD is prefered to 1000baseT-FD;
2. show GbE-features for 10/100 only phys (e.g. Level One LXT971).
This patch fixes this disadvantages.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

miitool: change behaviour closer to linux' mii-tool ...

miitool without arguments will try to show status for all phys.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: fix whitespace, drop blank lines at EOF ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mips asm/types.h: add #ifndef to fix compile error ...

without "#ifndef __ASSEMBLY__ #endif", an assembly file
including this file will break compilation.

Signed-off-by: Du Huanpeng <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mtd: Add subpagesize to mtd_info_user ...

ubiformat needs the subpagesize to work correctly. The kernel uses
sysfs to pass the subpagesize, but in barebox we have the possibility
to extend struct mtd_info_user. Add a corresponding field and use it
in ubiformat.

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

mtd: fix mtd_read return value ...

mtd->read returns the number of bitflips as positive numbers.
Instead of returning these numbers Return -EUCLEAN when the bitflip
threshold has been reached, 0 otherwise.

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

mtd: fix wrong return values in cdev read ...

mtd->read returns the number of bitflips as positive numbers.
Instead of returning these numbers Return -EUCLEAN when the bitflip
threshold has been reached, 0 otherwise.

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

video: ipufb: Use uncached memory for framebuffer ...

Otherwise funny caching artifacts can occur on the screen.

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

video: simplefb: Add a8r8g8b8 support ...

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

video: simplefb: Add of reserve entry for framebuffer memory ...

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

video: imx-ipu-fb: Allow to specify framebuffer memory size via platform_data ...

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

video: Add screen_size field ...

barebox does not need the screen size directly, but we pass the
framebuffer to Linux via simnplefb it is desirable to pass the
full size of the framebuffer. Default to calculated values from
the screen resolution.

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

video: imx-ipu-fb: Do not modify pwm register ...

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

video: ipufb: Allow to disable fractional pixelclock divider ...

The IPU has a fractional pixelclock divider. When used, this produces
clock jitter which especially LVDS transceivers can't handle. Allow
to disable it via platform_data.

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

video: ipufb: Fix divider debug print ...

The fractional part is 4 bit, not 3

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