| Commit message (Collapse) | Author | Age | Files | Lines |
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
On POWER8, the SBE is too sensitive to clock fluctuations
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
| |
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
Using the wrong bits in SR isn't a very good idea
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
| |
|
| |
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
|
| |
It doesn't have the SW interrupt triggers. Use NOP loops
instead to pace ourselves when waiting for arbitration
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
Allows to verify that continuous clocking is working
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
It does the magic to boot the host
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
For P8 CFAM without async mode
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
It seems to be necessary on the AST2400
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
It was missing the dependency on the cf-fsi-fw.h file
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
For diagnostics purposes
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
|
| |
Stores may be asynchronous, I'm not entirely certain
what ordering the CF provides with the subsequent
read of the command in SRAM, so ensure the store did
make it by reading back first.
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
The current sequence is possible in the main command loop
and in the arbitration sequence:
- STOP enables interrupt and stops execution
- Interrupt occurs (stale from previous command)
- No command (or arbitration response)
- Command is written
- Interrupt occurs again, is taken, does nothing
- STOP executes, doesn't wake up
We need to ensure that we only take the interrupt on
STOP, so we need to re-mask after every STOP. (We could
alternatively modify the SR in the interrupt stack to
return from the handler with IRQs disabled but this is
easier).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
| |
And keep them masked during breaks
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
|
| |
Relying on the command-status is dicey, the GPIO arbitration
code needs a more reliable way to know we are actually running
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
We now use a portion of the ucode itself for version information
and to configure the base of SRAM, this will allow the driver
to use a pool allocator with less constraints.
We put the status register as part of the command register, this
speeds things up a bit and remove the need to clear it from
the host.
We also turn some SRAM stores from byte to long stores, they seem
to be faster (still room for improvement)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
|
|
| |
With of course the notable exception of the exception vectors,
but this will make it easier should we want to relocate the
code.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
|
|
|
| |
This will make it easier to share the reserved memory
from Linux as the ucode is now fully self contained.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
| |
|
| |
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
|
| |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|