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By defining NO_MMAP it's now possible to avoid the usage of
mmap() and munmap(). This benefits platforms that don't support
these functions, e.g. Windows.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

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

Prepare release v1.4

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

Add support for version information 

fel: Improve file_upload() when no progress callback is passed

This commit renames the function pointer of type progress_cb_t
for file_upload(). That might help to avoid potential confusion
with other routines that use a boolean "progress" parameter to
indicate whether progress information is desired (at all).
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Until now, the function would always pass `true` as the "progress"
parameter to aw_write_buffer(). This has the potential drawback
of limiting the maximum USB transfer size.

By selectively passing `false` instead (with no progress function
active), we hint that aw_write_buffer() and subsequent routines
don't have to care about callbacks; so that usb_bulk_send() is
free to select a transfer size of AW_USB_MAX_BULK_SEND.
Reviewed-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Convert license file to Markdown syntax

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

This way we don't have to introduce new options for retrieving
version info. For those programs that do not output their usage
by default (e.g. because they would process stdin), you may pass
a "-?" option to get help - and thus version information.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

* fel: Add the ability to pass uEnv-style data via FEL

The corresponding format is recognized by having the environment
data (= text) start with a special "#=uEnv" marker. Upon transfer
of such a file, sunxi-fel will detect this condition, and set a
field in the SPL header accordingly - which in turn also requests
U-Boot to auto-import it (i.e. merge with the default environment).

(Note that this requires a U-Boot version that knows about the
new meaning of this field, namely v2016.09 or later. Older U-Boot
versions will fail to import the uEnv-style data.)
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

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

LICENSE.md replaces the former COPYING. It's an exact copy of the
original at https://www.gnu.org/licenses/old-licenses/gpl-2.0.md


(MD5 97bd67b5d0309e452b637f76e1c9a23c), retrieved as of Oct 22nd 2016:

HTTP/1.1 200 OK
Date: Sat, 22 Oct 2016 13:45:28 GMT
Last-Modified: Sat, 06 Aug 2016 17:46:02 GMT
ETag: "45e5-5396ac1a9ca80"
Content-Length: 17893
Content-Language: en

As github (auto)displays a license link and we also point to it
via a badge in the README.md, it's convenient to have Markdown
syntax display this file nicely formatted.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

The Makefile will now use a script (autoversion.sh) to update
version.h, which in turn defines a VERSION string and gets
included from common.h.

The idea is that version.h normally receives a git-describe
based identifier that represents the current checkout. In
cases where git might not be available, e.g. for builds from
a tarball, the script will instead fall back to a predefined
version (that should reflect the most recent release tag).
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Fix portable_endian.h for building on FreeBSD

Nand image builder improvements

--help/-h is not working correctly (it's printing the help context on
stderr instead of stdout).
Adding a valid shortcut for --help solves the problem.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Add explanations on where the options to pass to the tool should be
extracted from, and add two examples to illustrate this explanation.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Bernhard Nortmann <bernhard.nortmann@web.de>
---
Changes since v3:
- cosmetic changes to the help context

Changes since v2:
- limit line width in the help context

Changes since v1:
- use shorter option names
- rework the help context

Add error messages explaining what is wrong or missing in the arguments
passed by to the sunxi-nand-image-builder tool.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Bernhard Nortmann <bernhard.nortmann@web.de>
---
Changes since v1:
- Drop uneeded braces

Add NextThing Co. and Free Electrons copyrights and add myself as the
author of the randomizer and image builder implementation.

Remove the lengthy description explaining how the BCH implementation works,
since this is the purpose of this tool is not to expose a BCH library
(which was the case of the original source code I copied from the kernel).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Bernhard Nortmann <bernhard.nortmann@web.de>
---
Changes since v1:
- Add a link to the original bch.c source file

Add new uart0-helloworld-sdboot.sunxi bootable test image

This is a universal bootable image, which just prints a hello
message on UART0. For example, it is useful as a test payload
when debugging the SPI boot functionality:
   https://linux-sunxi.org/Bootable_SPI_flash

Changes in v2:
 - A workaround for https://patchwork.ozlabs.org/patch/622173
 - Also print the type of the used bootable media

Changes in v3:
 - Bernhard Nortmann's workaround for
   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63803

More details in https://github.com/linux-sunxi/sunxi-tools/pull/44

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>

Add a tool to generate raw NAND images

Generating raw NAND images is particularly useful for boot0 images
creation since the mainline driver is not supporting the funky layout
used by Allwinner's ROM code to load the boot0 binary from NAND.

This tools also allows one to generate raw images for 'normal' partitions
so that they can be flashed before soldering on the NAND on the board
(using a regular NAND programmer).

The tool takes care of generating ECC bytes and randomizing data as
expected by the NAND controller, and re-arranging the ECC/data sections
correctly.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

fel: Implement "rmr" commands to force warm reset into AArch32/AArch64

fexc fixes

fel-sdboot: Fix header corruption workaround

Now that we have a better understanding of what's causing the issue
that prevented entering FEL sometimes, we can adjust the workaround
code to a proper solution, i.e. skip over the problematic location.

Since the code amounts to less than a dozen ARM instructions, I've
decided to rewrite it as assembly code - fel-sdboot.S replaces the
former fel-sdboot.c.

The commit also includes a new binary (bin/fel-sdboot.sunxi) with
these changes.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>
Reviewed-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>

This commit adds a new "reset64 <addr>" command "rmr32" that could
be helpful with new 64-bit SoCs. It takes an entry point (address)
parameter, stores it via RVBAR and then issues a RMR write to
request a warm boot into AArch64 mode.

For now, this is useful with the boot process of A64, where we might
wish to transfer control to a 64-bit binary (for ATF or U-Boot).
See e.g. http://linux-sunxi.org/Pine64#Boot_sequence

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

Such lines do not conform to any known syntax rules.

With this patch, fexc will assume that they represent a special
case (where bin2fex extracted a malformed indentifier from a .bin
file - likely a remnant from a comment typo), issue a warning and
ignore the line.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

script_bin.c decompiles section entries even if they have invalid
indentifiers. Thus malformed .bin files were observed to result in
a .fex that couldn't be processed successfully with the sunxi-fexc
compiler.

This patch makes bin2fex now issue a warning for this kind of keys,
so that they're easier to notice and correct.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Recent original .bin files showed up with a version[0] of 49152
= 0xC000, which won't pass our current sanity checks. Restrict
version[0] check to lower 14 bits, to make it pass again.

(This might require further investigation in the future, as it's
possible that this particular header field actually isn't related
to version data at all.)

Fixes #51.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Both the error output in function decompile_section() and the
definition of GPIO_BANK_MAX in script.h suffered from an "off
by one" logic. The bank numbering in the .bin is based on 1,
so it should be added to ('A' - 1) for human-readable output,
and the maximum number corresponding to 'N' is 14.

This became apparent when trying to translate a fex2bin-compiled
a80_optimus_board.bin back to its original .fex equivalent.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

A test case for this is "fex2bin a-star_kv49l.fex".

This patch fixes an execution path in script_fex.c that would
allow script_parse_fex() to fail (i.e. return 0) without providing
any feedback to the user.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Make fel-sdboot.sunxi usable on A64 and A80

This also fixes potential problems with older SoCs when using certain (cross-)toolchains. See the discussion of #42

fel: Add fel spl command support for Allwinner A64
Acked-by: Bernhard Nortmann <bernhard.nortmann@web.de>

The SCTLR bits are somewhat different because the V bit is set
to 0 on A64 (Low exception vectors, base address 0x00000000) and
the UNK bit (Reads of this bit return an UNKNOWN value) is also not
the same as on the other SoCs. So the SCTLR check can be relaxed.

Changes in v2:
 - Because the SRAM A and SRAM C reside back-to-back in the address
   space, it is possible to use 40 KiB of SRAM by the SPL for its
   code+data+stack. So the FEL backup storage is moved from 0x18000
   to 0x1A000 to support this.
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>