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test_all_fex.sh now accepts an optional second parameter that
specifies the find executable to use. Without explicitly passing
it, AppVeyor would invoke the wrong one (Windows' own find.exe).
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Without this, the Windows version of sunxi-fexc might not process
files correctly.

TODO: This is really "hackish" / rather awful.
Eventually we should probably get rid of the file descriptor
based approach, i.e. open() plus _setmode(), and move to stdio
FILE* instead, which can be opened with the 'b' mode flag set.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

This commit adds a build configuration for https://www.appveyor.com/


to test mingw32-based Windows builds.

Additionally it includes a post-build step to package the resulting
Win32 binaries and provide them (for download) as AppVeyor artifacts.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

This commit adds a build configuration for https://www.tea-ci.org


that tests MSYS2-based Windows builds, for both "mingw32" and
"mingw64" toolchains.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Closes #96
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

This patch moves the scan for an ARM gcc into a separate shell
script. To prevent against recursion issues, the new script adds
"-maxdepth 1" to the find invocation; and it now also correctly
handles directories in $PATH that contain spaces in their name.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Locales can influence conversion, so make sure we all use the same one.
Signed-off-by: Priit Laes <plaes@plaes.org>

$PATH can contains directories that do not exist, so hide error messages
about those entries.
Signed-off-by: Priit Laes <plaes@plaes.org>

Move thunk code to a dedicated subdirectory, implement fel_clrsetbits_le32()

This function provides bitwise clear/set operations on 32-bit words
via FEL. It may help with implementing future functionality, where
ARM register manipulations often involve such bit level access.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

These might be useful in case the code requires maintenance/changes.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

"make headers" (which in turn invokes "make -C thunks/" should now
build the include files via awk, avoiding the need for ruby.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Try an 'educated guess' for a suitable toolchain if no explicit
CROSS_COMPILE was set (but still default to "arm-none-eabi-").
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

fel: Implement memory copy operations and "memmove" command

This functionality is now available via "sunxi-fel memmove", so
change the fel-gpio script accordingly and remove the thunk code.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

This also obsoletes fel-copy.c - for details see issue #78.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

The functions represent ARM "thunk" code that can be invoked via
FEL to execute arbitrary memory copy operations on the target
device, i.e. they deal with overlap and unaligned access. Where
possible, the copy operation will use (32-bit) word transfers,
otherwise it falls back to bytewise copying.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

SID fix / H3 workaround

Also includes an updated uart0-helloworld-sdboot.sunxi binary.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

With fixed SID reading routine, it's now possible to differ H2+ with H3
with SID.

Tested on an Orange Pi One and an Orange Pi Zero.
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>

The patch also introduces a "sid-register" command for diagnostic
purposes. It allows to use/enforce the workaround method for other
SoCs, to check if there are any inconsistencies with the values
read from memory.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

The new function fel_get_sid_registers() uses ARM code for register
access to the SID root key. This is necessary to retrieve correct
values for certain SoCs, e.g. when not using this approach the H3
has been observed to return 'mangled' values (when reading SID from
memory).

See https://groups.google.com/forum/#!topic/linux-sunxi/ynyIP8c61Qs



The FEL library provides a uniform fel_get_sid_root_key() wrapper
that will automatically use the workaround method for SoCs that
are tagged accordingly - so the application program does not have
to bother with selecting memory vs. register-based access.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

H3 SID controller has some bug, that makes the initial value at
0x01c14200 wrong.

This commit workarounds this bug by reading them with register access
first.
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Bernhard Nortmann <bernhard.nortmann@web.de>

This is a preparatory step. Instead of using memory-based access,
we might want to retrieve SID keys (e-fuses) via SID registers.
For this, it's convenient if the plain base address is available.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Add support for Allwinner V3s, which is similar to A10/A13/A20 in terms of SRAM mapping and SID address.

Add the SoC ID and UART0 pinmux for V3s.
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>

The V3s SoC looks like A10/13/20 in SRAM mapping and SID address.

Add support for it.
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>

fel: Improve on handling invalid options

This is to make sure that users get notified accordingly if the
"sunxi-fel --list" doesn't find any FEL devices.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

For unknown option-style arguments (starting with '-'), exit after
printing an error message.

This avoids situations where sunxi-fel would not report incorrect
options (with no FEL device attached/detected) and fail with
"Allwinner USB FEL device not found" instead, which is undesirable.

TODO: Might have to eventually migrate this to some better argument
parsing, e.g. getopt(3) or something similar.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

fel:
- Minor review of ARM scratch code
- POSIX conformance: Use nanosleep() instead of deprecated usleep()

README:
- revert Unicode dash to standard ASCII
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>