This was spotted while playing with qemu-jz:
1) rockbox reads TECR and TESR which are described as write-only
registers. Datasheet doesn't mention what happens if they are
readed. Apparently this doesn't have fatal side effects.
It comes down to two defines from jz4740.h
__tcu_stop_counter(n) and __tcu_start_counter(n) which use
read-modify-write sequence.
2) rockbox accesses out of bound offset 0xd4 in DMA memspace.
It comes from dis_irq() in system-jz4740.c. NUM_DMA is 6 but
DMA channels are 0-5 so (irq <= IRQ_DMA_0 + NUM_DMA)) bound
check is wrong.
This are *NOT* tested on device.
Change-Id: I29dff6a4f828030877b7d50fbcc98866478b9e3d
Reviewed-on: http://gerrit.rockbox.org/338
Reviewed-by: Bertrik Sikken <bertrik@sikken.nl>
Tested-by: Purling Nayuki <cyq.yzfl@gmail.com>
Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>
This is to a) to cleanup firmware/common and firmware/include a bit, but also b) for Rockbox as an application which should use the host system's c library and headers, separating makes it easy to exclude our files from the build.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657
* Add initial RoLo support
* Don't enable IRAM in plugins for now
* Initial try at getting PCM working (doesn't crash anymore at least)
* Replace hard-coded constant with #define in usb-jz4740
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20115 a1c6a512-1295-4272-9138-f99709370657
* Fix USB issues + add DMA support (doesn't work fully)
* Make exception handler a bit more descriptive
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20091 a1c6a512-1295-4272-9138-f99709370657
* Rework battery reading
* Get power off back working
* Add time to debug view
* Convert TABs to spaces in firmware/export/mips*.h
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20024 a1c6a512-1295-4272-9138-f99709370657
* Add missing mmu-mips.h change
Onda VX747:
* Correct USB power handling
* Improve NAND handling
* Other minor fixes
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19921 a1c6a512-1295-4272-9138-f99709370657
* Get USB working (it isn't good at writing support though)
* Clean up NAND & SD a bit
* Other comments/fixes
Ingenic Jz4740/MIPS:
* Split MMU from system
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19815 a1c6a512-1295-4272-9138-f99709370657
* Get rid of bug when interrupts are enabled
* Get threading to work (although with some weirdness)
* Other fixes/optimizations
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18512 a1c6a512-1295-4272-9138-f99709370657
* Overall cleanup (still needs work)
* Add preliminary USB support
* Add power off support
* Add preliminary MMU handling
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18348 a1c6a512-1295-4272-9138-f99709370657
* Make current_tick increase
* Convert button driver into SADC driver
* Make touchscreen handling work better (still needs good calibration routine)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18240 a1c6a512-1295-4272-9138-f99709370657
