Add support for loading a UPL image from SPL. This uses the simple FIT
implementation, but also loads the full FIT just to permit more testing.

Signed-off-by: Simon Glass <sjg@chromium.org>

This code is useful for loading an image in sandbox_spl so move it into
a place where it can be called as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add a SPL test for the NAND load method. We use some different functions to
do the writing from the main test since things like nand_write_skip_bad
aren't available in SPL.

We disable BBT scanning, since scan_bbt is only populated when not in SPL.
We use nand_spl_loaders.c as it seems to be common to at least a few boards
already. However, we do not use nand_spl_simple.c because it would require
us to implement cmd_ctrl.  The various nand load functions are adapted from
omap_gpmc. However, they have been modified for simplicity/correctness.

Signed-off-by: Sean Anderson <seanga2@gmail.com>

Add test for the SPI load method. This one is pretty straightforward. We
can't enable FIT_EXTERNAL with LOAD_FIT_FULL because spl_spi_load_image
doesn't know the total image size and has to guess from fdt_totalsize. This
doesn't include external data, so loading it will fail.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Add a test for the NOR load method. Since NOR is memory-mapped we can
substitute a buffer instead. The only major complication is testing LZMA
decompression.  It's too complex to implement LZMA compression in a test, and we
have no in-tree compressor, so we just include some pre-compressed data. This
data was generated through something like

    generate_data(plain, plain_size, "lzma")
    cat plain.dat | lzma | hexdump -C

and was cleaned up further in my editor.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Add a test for loading U-Boot over TFTP. As with other sandbox net
routines, we need to initialize our packets manually since things like
net_set_ether and net_set_udp_header always use "our" addresses. We use
BOOTP instead of DHCP, since DHCP has a tag/length-based format which is
harder to parse. Our TFTP implementation doesn't define as many constants
as I'd like, so I create some here. Note that the TFTP block size is
one-based, but offsets are zero-based.

In order to avoid address errors, we need to set up/define some additional
address information settings. dram_init_banksize would be a good candidate
for settig up bi_dram, but it gets called too late in board_init_r.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Add an SPL loader to obtain the next-phase binary from a FIT provided
by the VBE driver.

Signed-off-by: Simon Glass <sjg@chromium.org>

At present sandbox only supports jumping to a file, to get to the next
U-Boot phase. We want to support other methods, so update the code to
use an enum for the method. Also use the

Use board_boot_order() to set the order, so we can add more options.
Also add the MMC methods into the BOOT_DEVICE enum so that booting
from MMC can be supported.

Signed-off-by: Simon Glass <sjg@chromium.org>

This symbol has been unused in code for some time now, remove
the final references.

Signed-off-by: Tom Rini <trini@konsulko.com>

The SPL header has a function for obtaining the phase in capital letters,
e.g. 'SPL'. Add one for lower-case also, as used by sandbox.

Use this to generalise the sandbox logic for determining the filename of
the next sandbox executable. This can provide support for VPL.

Signed-off-by: Simon Glass <sjg@chromium.org>