There is quite a bit of assembler code that can be removed if we use the
generic global_data setup. Less arch-specific code makes it easier to add
new features and maintain the start-up code.

Drop the unneeded code and adjust the hooks in board_f.c to cope.
Signed-off-by: NSimon Glass <sjg@chromium.org>

There is quite a bit of assembler code that can be removed if we use the
generic global_data setup. Less arch-specific code makes it easier to add
new features and maintain the start-up code.

Drop the unneeded code and adjust the hooks in board_f.c to cope.

Tested on LS2085ARDB and LS2085AQDS (armv8 SoC).
Tested-by: NYork Sun <yorksun@freescale.com>
Signed-off-by: NSimon Glass <sjg@chromium.org>

Change the #ifdef so that the early malloc() area is not set up in SPL if
CONFIG_SYS_SPL_MALLOC_START is defined. In that case it would never actually
be used, and just chews up stack space.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Tested-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Unfortunately memset() is not always available, so provide a substitute when
needed.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This function will be used by both SPL and U-Boot proper. So move it into
a common place. Also change the #ifdef so that the early malloc() area is
not set up in SPL if CONFIG_SYS_SPL_MALLOC_START is defined. In that case
it would never actually be used, and just chews up stack space.
Signed-off-by: NSimon Glass <sjg@chromium.org>

In the following snippet:

if [ ! -x `which $prereq` ]; then

When $prereq does not exist, `which $prereq` evaluates to the empty string,
which results in *no* argument being passed to the -x operator, which then
evaluates to true, which is the equivalent of the prereq having been found. In
order for this to fail as expected, we must pass an empty argument, which then
causes -x to fail. Do this by wrapping the `` in quotes so there's always an
argument to -x, even if the value of the argument is zero-length.
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Tested-by: NSimon Glass <sjg@chromium.org>

In my patch series to replace fs/fat with "ff.c", I enhanced ff.c to
optimize file reading, so that reads of contiguous clusters are submitted
to the IO device as a single read. This test attempts to torture-test
edge-cases of that enhancement.

BTW, the only way I found to validate that this script actually does
create non-contiguous files was to manually inspect the FAT bitmap in a
hex dump of the FAT image. hdparm --fibmap doesn't work on loop-mounted
filesystems. filefrag -v -e seems to lie about files being contiguous
when they aren't.
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Tested-by: NSimon Glass <sjg@chromium.org>

itest accesses memory, and hence must map/unmap it. Without doing so, it
accesses invalid addresses and crashes.
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Under the assumptions of having a UBI volume called boot, containing
a ubifs filesystem.
Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NStephen Warren <swarren@nvidia.com>

Add generic fs support, so that commands like ls, load and test -e can be
used on ubifs.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

Implement the necessary functions for implementing generic fs support
for ubifs.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

Modify the ubifs u-boot wrapper function prototypes for generic fs use,
and give them their own header file.

This is a preparation patch for adding ubifs support to the generic fs
code from fs/fs.c.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

This is not necessary / useful when not building with CONFIG_SANDBOX and
with the addition of ubifs support to the generic fs commands it actually
gets in the way, since both operate on a fake / NULL blkdev.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NStephen Warren <swarren@nvidia.com>

Scripts are multi-file images, the imxtract command should handle them
in the same manner.
Signed-off-by: NPierre Aubert <p.aubert@staubli.com>

In the "Getting Started with Coccinelle - KVM edition" presentation that
has been held by Julia Lawall at the KVM forum 2015 (see the slides at
http://events.linuxfoundation.org/sites/events/files/slides/tutorial_kvm_0.pdf),
she pointed out some bad return value checks in U-Boot that can be
detected with Coccinelle by using the following config file:

@@
identifier x,y;
identifier f;
statement S;
@@
x = f(...);
(
 if (x < 0) S
|
 if (
-     y
+     x
 < 0) S
)

This patch now fixes these issues.
Signed-off-by: NThomas Huth <huth@tuxfamily.org>

Add CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG support and enable it to set
'board_rev' and 'board_name' envs.
'board_rev' can be used in scripts to determine what board we are running on
and 'board_name' for pretty printing.
Signed-off-by: NGuillaume GARDET <guillaume.gardet@free.fr>

Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>

For current U-Boot to initialize status LEDs via status_led_init(), it
is required to have both CONFIG_STATUS_LED and STATUS_LED_BOOT defined.
This may be a particular concern with GPIO LEDs, where __led_init() is
required to correctly set up the GPIO (gpio_request and
gpio_direction_output). Without STATUS_LED_BOOT the initialization isn't
called, which could leave the user with a non-functional "led" command -
due to the fact that the LED routines in gpio_led.c use gpio_set_value()
just fine, but the GPIO never got set up properly in the first place.

I think having CONFIG_STATUS_LED is sufficient to justify a
corresponding call to status_led_init(), even with no STATUS_LED_BOOT
defined. To do so, common/board_r.c needs call that routine, so it now
is exposed via status_led.h.
Signed-off-by: NBernhard Nortmann <bernhard.nortmann@web.de>
[trini: Add dummy __led_init to pca9551_led.c]
Signed-off-by: NTom Rini <trini@konsulko.com>

For boards that support LEDs driven via GPIO (CONFIG_GPIO_LED),
it may be useful to have some generic stubs (wrapper functions)
for the "colored" LEDs.

This allows defining STATUS_LED_* values directly to GPIO numbers,
e.g.: #define STATUS_LED_GREEN	248 /* = PH24 */

To keep those optional, it's probably best to introduce an additional
configuration setting. I've chosen CONFIG_GPIO_LED_STUBS for that.
Placing the code in drivers/misc/gpio_led.c also ensures that it
automatically depends on CONFIG_GPIO_LED too.
Signed-off-by: NBernhard Nortmann <bernhard.nortmann@web.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Add driver model support for keystone serial driver.
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Acked-by: NSimon Glass <sjg@chromium.org>

Convert altera_tse to driver model and phylib.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NMarek Vasut <marex@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

As the virtual address and physical address mapping of nios2 with
MMU are different. Add a check of MMU, and fix the mapping.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>
Reviewed-by: NLey Foon Tan <lftan@altera.com>

Add README.nios2 about how to add nios2 boards to u-boot.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>

As we use device tree to control u-boot now, the generic
board can be removed.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert dma_alloc_coherent to use memalign.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NMarek Vasut <marex@denx.de>

Convert copy_exception_trampoline() to use dm cpu data.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert cache flush to use dm cpu data.

The original cache flush functions are written in assembly
and use CONFIG_SYS_{I,D}CACHE_SIZE... macros. It is difficult
to convert to use cache configuration in dm cpu data which is
extracted from device tree.

The cacheflush.c of Linux nios2 arch uses cpuinfo structure,
which is very close to our dm cpu data. So we copy and modify
it to arch/nios2/lib/cache.c to replace the old cache.S.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Set default icache and dcache configuration for start.S.

We want to remove the CONFIG_SYS_{I,D}CACHE_SIZE...
configuration macros. As we are just barely starting from
reset, there is no luxury of device tree.

We will set some maximum cache configuration so that it will
work for most configurations. This is used only in this
start.S. The speed penalty is only once here.

After start up, during board initialization, cpu information
will be extracted from device tree. Then cache flush operations
will have correct cache configurations.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>

Zap initdram(), as it is not used.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>

Clean up comments style in start.S.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert ioremap() to use io_region_base in dm cpu global data.

Also remove three unused io functions, which have style issue
and are replaced by macros already.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert do_reset to use dm cpu data.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Remove asm/psr.h, which is not used.
Also clean up asm/sections.h and unaligned.h.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NMarek Vasut <marex@denx.de>

Convert altera sysid to driver model with misc uclass.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NChin Liang See <clsee@altera.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Implement a Miscellaneous uclass with generic read or
write operations. This class is used only for those
do not fit other more general classes.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NSimon Glass <sjg@chromium.org>

Both altera_jtag_serial_initialize() and
altera_serial_initialize() are no longer used after
they are converted to driver model.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NSimon Glass <sjg@chromium.org>
Acked-by: NMarek Vasut <marex@denx.de>

Convert altera timer to driver model.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NChin Liang See <clsee@altera.com>

Start a new timer after relocation, just in case the
timer has been used in per-relocation.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NSimon Glass <sjg@chromium.org>

Implement a Timer uclass to work with lib/time.c.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NSimon Glass <sjg@chromium.org>

Convert nios2 cpu to driver model. The cpu parameters are
extracted from device tree and saved to global data structure.
We will use them to replace the custom_fpga.h .
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Convert altera_pio to driver model.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NChin Liang See <clsee@altera.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>