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Aidan MacDonald f40cae6cdc x1000: rewrite SD driver using sdmmc_host
Remove all SD protocol handling and all target specific code
like GPIO/interrupt handling and clock parent setup. This can
now be handled from sdmmc_host_target_init() for each target.

Now only the clock frequency is managed by the MSC driver.
To make this code easier to factor out later, it's confined
to helper functions that do not access the driver state.

One small change is that MSCxDIV output is now clamped to a
minimum of 50MHz to avoid unnecessary frequency changes. The
MSC_CLKRT divider can still divide 50MHz down to 400 KHz so
there is no downside to this.

Auto-CMD12 is now unused. Using it would make error handling
more difficult for sdmmc_host since the controller does not
expose response data for the auto-CMD12.

Explicit CMD12 was not handled correctly in the old version
of the driver because the busy signal was ignored for R1b
responses if there was no associated data transfer. This is
now fixed by waiting for the PRG_DONE interrupt instead of
END_CMD_RES for non-data transfer R1b type commands.

Since existing X1000 targets are all very similar they use
a shared implementation in sdmmc-x1000-common.c for clock
setup and card detection. New targets can either use this
or create a separate file if they are different enough to
warrant one.

Change-Id: I35396637325d7c06a10151bb6aee64cabdc7b682
2026-08-29 14:48:12 -04:00
android chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
apps lastfm_scrobbler: fetch rbversion from plugin API 2026-08-25 13:17:08 -04:00
backdrops ap80max: New hosted port 2026-08-13 17:55:06 -07:00
bootloader ap80max: New hosted port 2026-08-13 17:55:06 -07:00
docs 3DS: add circle pad support for scrolling and navigation (Olivier Senn) 2026-08-26 02:22:29 +03:00
firmware x1000: rewrite SD driver using sdmmc_host 2026-08-29 14:48:12 -04:00
fonts chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
icons chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
lib warble: fix build on targets with HAVE_RECORDING 2026-08-25 08:01:09 -04:00
manual keyboard: point-mode virtual keyboard for touchscreens 2026-08-25 09:56:46 -04:00
packaging chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
tools configure: macos: fix checkwps error messages 2026-08-28 16:51:55 -04:00
uisimulator ap80max: New hosted port 2026-08-13 17:55:06 -07:00
utils FS#13984 - Rockbox Utility: Add SAPI5 voice volume control (Alessio Lenzi) 2026-08-25 11:11:42 -04:00
wps ap80max: New hosted port 2026-08-13 17:55:06 -07:00
.gitattributes Add a gitattributes file for the migration. 2011-12-01 14:14:59 +00:00
.gitignore misc: Update gitignore to cover a bunch of utils/* binaries 2026-06-17 13:56:29 -04:00
.gitreview misc: Add a .gitreview file for better gerrit integration 2021-06-24 07:22:19 -04:00

               __________               __   ___.
     Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
     Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
     Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
     Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
                       \/            \/     \/    \/            \/

Build Your Own Rockbox

1. Clone 'rockbox' from git (or extract a downloaded archive).

   $ git clone git://git.rockbox.org/rockbox

     or

   $ tar xJf rockbox.tar.xz

2. Create a build directory, preferably in the same directory as the firmware/
   and apps/ directories. This is where all generated files will be written.

   $ cd rockbox
   $ mkdir build
   $ cd build

3. Make sure you have mips/m68k/arm-elf-gcc and siblings in the PATH. Make sure
   that you have 'perl' in your PATH too. Your gcc cross compiler needs to be
   a particular version depending on what player you are compiling for. These
   can be generated using the rockboxdev.sh script in the /tools/ folder of the
   source.

   $ which arm-elf-eabi-gcc
   $ which perl

4. In your build directory, run the 'tools/configure' script and enter what
   target you want to build for and if you want a debug version or not (and a
   few more questions). It'll prompt you. The debug version is for making a
   gdb version out of it. It is only useful if you run gdb towards your target
   Archos.

   $ ../tools/configure

5. *ploink*. Now you have got a Makefile generated for you.

6. Run 'make' and soon the necessary pieces from the firmware and the apps
   directories have been compiled, linked and scrambled for you.

   $ make
   $ make zip

7. unzip the rockbox.zip on your music player, reboot it and
   *smile*.

If you want to build for more than one target, just create several build
directories and create a setup for each target:

   $ mkdir build-fuzeplus
   $ cd build-fuzeplus
   $ ../tools/configure

   $ mkdir build-xduoox3
   $ cd build-xduoox3
   $ ../tools/configure

Questions anyone? Ask on the mailing list or on IRC. We'll be happy to help you!