Age | Commit message (Collapse) | Author |
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Do not rely on a bootloader initializing the HW, RB initializes
and configures GPIO, I2C, and PMU at startup.
Change-Id: If7f856b1f345f63de584aa4e4fc22d130cd66c80
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When the bootloader starts, most of HW never has been initialized.
This patch includes all code needed to perform the preliminary
initialization on SYSCON, GPIO, i2c, and MIU.
The code is based on emCORE and OF reverse engineering, ported to
C for readability.
Change-Id: I9ecf2c3e8b1b636241a211dbba8735137accd05c
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When the bootloader starts only IRAM is available, the first task is to
ask the PMU to verify if the iPod has previously been hibernated by OF.
Due to memory limitations, the kernel cannot be used on this stage.
This patch modifies I2C and PMU low level functions to not to depend
on kernel (removes mutexes, and uses HW timer instead of current_tick),
actual kernel functions are modified to be 'mutexed' wrappers of the new
functions.
Change-Id: I7cef9e95dedaf176dc0659315f3dc33166d5b116
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Major known issues:
- No bootloader yet
- No support for the first-generation 160GB CE-ATA hard disk drive yet
- Audio playback is slow, only FLAC seems to reach realtime
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28953 a1c6a512-1295-4272-9138-f99709370657
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