The CPU write buffer needs to be coherent with the cache, otherwise
we might flush stale entries with the actual data stuck in the cache.
This is really important on newer CPU core with bigger write buffers.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The ARMv6 K/Z derivatives have a v7 compatible MMU, but all other parts
(including the cache handling) is still at v6. As we don't make use of
the more advanced features of the v7 MMU in Barebox, it's okay to just
override this to properly identify the CPU as ARMv6.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On ARMv7 the exception vectors inside the barebox binary are used directly
by remapping the vectors base through the VBAR register. While VBAR allows
to remap the exception vectors freely, it still imposes a minimum alignment
of 32 byte, as the lower bits are treated as the exception vector offset.
Enforce this alignment inside the barebox binary.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Two nested while loops are not necessary here, so integrate the read,
i2c_fsm and i2c_do_action calls into mv64xxx_i2c_wait_for_completion()
and remove the obsolete interrupt remains.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As stated in Marvell's Functional Specifications in MV-S107021-U0 Rev. A
on page 420 ff. software delays are needed. "SW delay represent a delay
of at least 2 internal clock cycles". These delays are hereby
implemented.
The original kernel driver compensates the needed software delays with
the time the interrupts take.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is necessary to make second stage booting work when the register
window is already moved.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This just starts the main image of the mvebu image assuming that the
header images just setup the RAM. The position of the internal register
window is provided in the header as introduced in the previous commit.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
A problem when using 2nd stage booting on mvebu is that the first bootloader
already switched the register window location from 0xd0000000 to
0xf1000000 by writing to 0xd0000080. When the second bootloader also
tries to do this switch it writes to the wrong location resulting in an
exception and so a boot failure.
For this reason the base address of the register window is passed in the
barebox header and picked up from there by early code. In a further
patch bootm is taught to put the actual position of the window there for
the second bootloader to finally make second stage booting work.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
binary.0 sets up all RAM but the address decoding isn't adapted accordingly
which makes barebox assume that there are only 512 MiB of RAM on a single
bank instead of two banks with 1 GiB each.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Similar to the two previous commits, this gets rid of a of-fixup which
is strange because the soc init stuff is rerun then when a new dt for
booting into Linux is loaded.
The initcall must be postponed to post-core to ensure
of_machine_is_compatible is working correctly.
The call to mvebu_mbus_add_range is moved to drivers/bus/mvebu-mbus.c to
ensure it's registered early enough.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Similar to the previous commit, this gets rid of a of-fixup which is
strange because the soc init stuff is rerun then when a new dt for
booting into Linux is loaded.
The initcall must be postponed to post-core to ensure
of_machine_is_compatible is working correctly.
The call to mvebu_mbus_add_range is moved to drivers/bus/mvebu-mbus.c to
ensure it's registered early enough.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This gets rid of a of-fixup which is strange because the soc init stuff
is rerun then when a new dt for booting into Linux is loaded.
The initcall must be postponed to post-core to ensure
of_machine_is_compatible is working correctly.
The call to mvebu_mbus_add_range is moved to drivers/bus/mvebu-mbus.c to
ensure it's registered early enough.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit switches the RaspberryPi arch over to probe Barebox
from the builtin DT and enables multi-image builds.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To let the user select the right base, when building multi-image.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Makes more space available for the malloc area and will allow
to switch to multi-image later on.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If the clock frequency is given by a DT property, use this and don't
try to use the clock handle.
Signed-off-by: Enrico Joerns <ejo@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This way we can print the correct model in the Barebox banner.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The Raspberry PIs use different versions schemes for the older and newer
variants. The decoding arrays for these schemes were split up in rpi.c
and rpi2.c. This is not required, as the appropriate versioning scheme
can be determined programmatically.
Signed-off-by: Enrico Joerns <ejo@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As nand_bb_write_buf calls mtd_write(bb->mtd, cur_ofs, now, ...) the
limit that now should be checked against is bb->mtd->size - cur_ofs.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
read() might return less than $count bytes which is only an upper limit.
The user is supposed to repeat the command to fill a buffer completely.
So use the convenience wrapper read_full in memcmp.
This fixes memcmp on /dev/nand0 on an Armada XP.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
All error paths before calling the driver's lseek callback return -1 and
set errno. Do the same if the callback returns an error.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This machine was a prototype and was never shipped to customers.
Since it has no dependencies to any image, it can be removed.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
GPLv3 is incompatible with the projects license. Relicense file
under GPLv2+
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Daniel Schultz <d.schultz@phytec.de>
Some drivers need an explicit sync method to flush the virtual
framebuffer to the display. It is called fb_flush().
fb_flush() gets called on fbc_putc, on fb_close and in the pattern cycle
in the fbtest command.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This enables displaying text on e.g. a framebuffer console by issueing
echo -o /dev/fbconsole0 abc123
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Opening and closing consoles should be independent from setting them
active. This way it is possible to open e.g. a framebuffer console and
display text on it without showing stdout/stderr.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This implements the vt100 show cursor command '[?25h' and the hide
cursor command '[?25l'. It is useful for displaying text on a non-active
(no stdout/stdin/stderr) console with 'echo'.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Moving the cursor to x=2, y=2 with "\e[3;3H" on a 12x2 framebuffer
console lead to a barebox crash while drawing the cursor. If the
cursor position is out of bounds clip the cursor to the corresponding
edge.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
prepare to drop the efi arch as efi boot up is not arch sepecific
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Ported from Linux v4.10.
This font is ideal for displaying a framebuffer console on a small display.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
gl_draw_circle draws outside of the screen if the resolution is too low.
This lead to memory corruption. Check the dimensions before drawing.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
info was errorneously allocated, but it really is a pointer to a fb_info
struct from the framebuffer. This fixes a memory leak.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
so other arch could include it too
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
as efi is not an arch but a boot mode from where barebox is started
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
so it can be reused on any ARCH
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add missing configuration options for various bcj filters. Without
these options the lib/xz/xz_dec_bcj.c file will be compiled, but all
filters will be disabled.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The DCD v2 check command supported by i.MX53 and later SoC polls a given
memory location as long as a given condition is true.
Enable imx-usb-loader to perform this check. When the timeout is hit,
imx-usb-loader returns an error. For practical reasons the timeout
computation will differ from the native implementation, since performing
check commands via USB will be much slower compared to native processing.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Uwe Kleine-König
Lucas Stach
Bastian Stender
Sascha Hauer
Enrico Joerns
Daniel Schultz
Jean-Christophe PLAGNIOL-VILLARD
Yegor Yefremov
Alexander Kurz