Right now we do not support persistent names for mtd devices. The
base name can be passed to add_mtd_device, but this is always appended
with a dynamic number. With this patch add_mtd_device takes a device_id
argument which can be used to create a mtd device with an exact name.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
KSZ8031 is similar to KSZ8021. It can use the same functions.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add function for indirect access of the mmd registers, based on linux.
phy_read_mmd_indirect
phy_write_mmd_indirect
Also clean some private mmd functions
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add empty definitions for mutexes, spinlocks and other stuff from
the kernel to make it easier to reuse code from the kernel.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is a fresh UBI import from Linux v3.10
This is done mainly to get fastmap support.
This was tested with the i.MX nand driver, the MXS nand driver and
on CFI NOR flash.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To update to the latest UBI support from the Kernel first remove
the old UBI support. Without it the update will be even less reviewable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This updates the NAND stuff to Linux-3.11-rc1. It is synchronized
as best as we can get:
- locks removed
- The splitting in different files we had to better support different
features has been dropped. Instead this is now done mostly with the
use of __maybe_unused
Some barebox adjustments are forward ported, like:
- Allow partial page writes
- Optionally allow to erase bad blocks
- check for all_ff before writing a page
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This introduces the ecc stength fields in the structures and fills
them in, but leaves them unused right now.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds support for extracting LZ4-compressed kernel images,
as well as LZ4-compressed ramdisk images in the kernel boot process.
This depends on the patch below
decompressor: Add LZ4 decompressor module
Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds support for LZ4 decompression in the Linux Kernel.
LZ4 Decompression APIs for kernel are based on LZ4 implementation
by Yann Collet.
LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html
LZ4 source repository : http://code.google.com/p/lz4/
Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Allows to reuse the clk gate code within other clocks.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Taken from the Linuxkernel with some small adjustments for barebox.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On MXS we need to poll the busy bit when changing a clock rate, but only
when the parent clocks are enabled. This exposes the already present
function clk_is_enabled which is suitable for this job.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds several missing includes to files under include/ which
we relied on being included implicitly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this fix the problems introduced when detecting non ONFI flashes in
commit 4c2bdc8728
"nand_base: detect more ONFI flash"
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows us to better detect whether a clk is enabled or not.
- If we can ask a clk, ask it. If it's enabled, go on and ask parents
- If we can't ask it, but it can be enabled, depend on the enable_count.
if it's positive, go on and ask parents
- If we can't ask it and it cannot be enabled, assume it is enabled
and ask parents.
This makes the CLK_ALWAYS_ENABLED unnecessary, since the fixed clk now
always returns 1 in its is_enabled callback.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds helpers to define resources, such as
DEFINE_RES_NAMED, DEFINE_RES_MEM and DEFINE_RES_MEM_NAMED.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds generic memory-mapped GPIO controller support.
Code taken from Linux Kernel and adopted for barebox.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This file is present in current kernels. In order to get closer
to current mtd support introduce it for barebox aswell.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
While erasing bad blocks is a potentially dangerous operation
it is sometimes needed during development or when some foreign
code has touched the flash.
This patch adds a device parameter 'erasebad' to allow erasing
bad blocks. Since this is not wanted during production this is
behind a Kconfig option.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Markus Pargmann
Jean-Christophe PLAGNIOL-VILLARD
Jan Weitzel
Kyungsik Lee
Lucas Stach
Sebastian Hesselbarth
Eric Bénard
Jan Luebbe
Alexander Shiyan