linux-toradex.git/arch/blackfin/kernel, branch Rel3

Blackfin: debug-mmrs: include RSI_PID[4567] MMRs

2011-05-28T21:02:56+00:00

The documentation is a little iffy as to whether these are actual MMRs,
but reading them on the hardware works, and the previous version of this
logic (the SDH) had PID[4567].  So add it for RSI too.

Signed-off-by: Mike Frysinger

Blackfin: debug-mmrs: fix typos with gptimers/mdma/ppi

2011-05-28T21:02:56+00:00

This code was mostly developed against a BF54x, so some BF537-specific
issues were missed.

The PPI block starts at PPI_CONTROL, not PPI_STATUS (which is the reverse
of the EPPI block).

The MDMA block starts at MDMA_NEXT_DESC_PTR, not MDMA_CONFIG.  Seems the
sim does not catch misreads here so that'll need to get fixed.

The gptimer block is mostly 32bit regs, not 16bit.  Use the gptimer struct
to figure that out rather than hardcoding it locally.

Signed-off-by: Mike Frysinger

Blackfin: use new common PERCPU_INPUT define

2011-05-25T12:24:15+00:00

The Blackfin percpu input sections are outdated, so rather than update
them, drop them completely and use the new common define.

Signed-off-by: Mike Frysinger

Blackfin: work around anomaly 05000480

2011-05-25T12:24:14+00:00

Anomaly 05000480 on BF537 rev 0.0, 0.1, 0.2:
Multiple Simultaneous Urgent DMA Requests May Cause DMA System Instability

Suggested Workaround:
Program the DMA Traffic Control Period to a non-zero value.  This forces
the DMA block to group accesses together rather than allow arbitration for
each piece of data placed on the internal DMA bus.

Signed-off-by: Steven Miao 
Signed-off-by: Mike Frysinger

Blackfin: switch /proc/gpio to seq_file

2011-05-25T12:24:12+00:00

->read_proc interface is going away, switch to seq_file.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Mike Frysinger

Blackfin: convert old cpumask API to new one

2011-05-25T12:24:11+00:00

old cpu_xxx() APIs is planned to removed later. then, converted.

Signed-off-by: KOSAKI Motohiro 
Signed-off-by: Mike Frysinger

Blackfin: don't touch task->cpus_allowed directly

2011-05-25T12:24:10+00:00

Every callter (except kthread_bind) should use proper
set_cpus_allowed_ptr() APIs.

Signed-off-by: KOSAKI Motohiro 
Signed-off-by: Mike Frysinger

Blackfin: initial perf_event support

2011-05-25T12:24:09+00:00

Signed-off-by: Mike Frysinger

Blackfin: use on-chip reset func with newer parts

2011-05-25T12:13:43+00:00

Turns out the documentation is wrong and doing "RAISE 1" does not result
in a software reset, only a core reset.  So when the on-chip rom has a
functioning reset helper, use it.

Signed-off-by: Mike Frysinger

Blackfin: optimize MMR reads during startup a bit

2011-05-25T12:13:43+00:00

Since the value of these MMRs aren't changing, store the value in a local
variable and work off of that.  This avoids multiple MMR reads which are
implicitly forced by the volatile markings.

Signed-off-by: Mike Frysinger