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Marcin Bukat aba3fe1d57 YP-CP3: switch the headphone amplifier pin to GPIO
The headphone amplifier enable, GPIO F2, shares its pin with SDRAM
address line A12 and is A12 until switched in IOMUXB. Rockbox never
switched it, so driving F2 never reached the amplifier: started from
the Rockbox bootloader, playback and the FM radio were near silent
and distorted. They only worked when the original firmware had run
first, as it switches the pin. The 16 MB of SDRAM does not use A12.

Tested on a YP-CP3 booted from the Rockbox bootloader.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Change-Id: I40610aaf88f06fd4831d07174b0f66a4ba32204d
2026-10-08 10:40:40 +02:00
android chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
apps test_disk: scroll the log when the screen is full 2026-10-07 22:58:44 -04:00
backdrops ap80max: New hosted port 2026-08-13 17:55:06 -07:00
bootloader rk27xx: boot Rockbox on USB wake when it can write the NAND 2026-10-07 22:20:18 +02:00
docs docs: Fix case of "iPod" in area name and history 2026-10-01 17:32:24 -04:00
firmware YP-CP3: switch the headphone amplifier pin to GPIO 2026-10-08 10:40:40 +02:00
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 skin_engine: more tags for the recording screen 2026-10-07 20:12:49 -04:00
manual skin_engine: more tags for the recording screen 2026-10-07 20:12:49 -04:00
packaging 3ds: Port refactor. 2026-09-01 08:39:07 -04:00
tools checkwps: Delete incorrect dependency 2026-10-07 17:34:22 -04:00
uisimulator YP-CP3: simulator 2026-10-02 16:42:34 +02:00
utils Fix case of "iPod" in docs and CLI tools help 2026-10-01 17:32:24 -04:00
wps cabbiev2: Don't generate certain entries for monochrome devices 2026-10-05 14:11:34 -04:00
.gitattributes
.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!