linux-toradex.git/arch/powerpc/sysdev/qe_lib/qe.c, branch v2.6.32.6

powerpc/qe: Implement qe_alive_during_sleep() helper function

2009-08-31T04:51:33+00:00

In some CPUs (i.e. MPC8569) QE shuts down completely during sleep,
drivers may want to know that to reinitialize registers and buffer
descriptors.

This patch implements qe_alive_during_sleep() helper function, so far
it just checks if MPC8569-compatible power management controller is
present, which is a sign that QE turns off during sleep.

Signed-off-by: Anton Vorontsov 
Signed-off-by: David S. Miller

powerpc/qe: add polling timeout to qe_issue_cmd()

2009-06-23T13:09:41+00:00

The qe_issue_cmd() function (Freescale PowerPC QUICC Engine library) polls
on a register until a status bit changes, but does not include a timeout
to handle the situation if the bit never changes.  Change the code to use
the new spin_event_timeout() macro, which simplifies polling on a register
without a timeout.

Signed-off-by: Timur Tabi 
Signed-off-by: Kumar Gala

powerpc/qe: update QE Serial Number

2009-05-19T05:50:24+00:00

The latest QE chip may have more Serial Number(SNUM)s of thread to use. We
will get the number of SNUMs from device tree by reading the new property
"fsl,qe-num-snums", and set 28 as the default number of SNUMs so that it is
compatible with the old QE chips' device trees which don't have this new
property. The macro QE_NUM_OF_SNUM is defined as the maximum number in QE
snum table which is 256.

Also we update the snum_init[] array with 18 more new SNUMs which are
confirmed to be useful on new chip.

Signed-off-by: Haiying Wang 
Acked-by: Timur Tabi 
Signed-off-by: Kumar Gala

powerpc/qe: update risc allocation for QE

2009-05-19T05:50:22+00:00

Change the RISC allocation to macros instead of enum, add function to read
the number of risc engines from the new property "fsl,qe-num-riscs" under
the qe node in dts. Add new property "fsl,qe-num-riscs" description in
qe.txt

Signed-off-by: Haiying Wang 
Acked-by: Timur Tabi 
Signed-off-by: Kumar Gala

powerpc/qe: Move cmxgcr_lock definition from the ucc.c into the qe.c

2008-12-03T16:47:36+00:00

With this patch we can compile the qe_lib/usb.c without the UCC
support (that is, without UCC_GETH and/or SERIAL_QE).

Fixes following link error (CONFIG_SMP should be =y to trigger this):

arch/powerpc/sysdev/built-in.o: In function `qe_usb_clock_set':
(.text+0x3cae): undefined reference to `cmxgcr_lock'
make: *** [.tmp_vmlinux1] Error 1

While at it, also add missing spinlock.h includes.

Signed-off-by: Anton Vorontsov 
Acked-By: Timur Tabi 
Signed-off-by: Kumar Gala

powerpc: Fix a bunch of sparse warnings in the qe_lib

2008-07-16T22:57:45+00:00

Mostly having to do with not marking things __iomem.  And some failure
to use appropriate accessors to read MMIO regs.

Signed-off-by: Andy Fleming 
Signed-off-by: Kumar Gala

powerpc/QE: qe_reset should be __init

2008-06-11T18:46:24+00:00

This patch fixes following section mismatch:

WARNING: arch/powerpc/sysdev/built-in.o(.text+0x11d8): Section mismatch in
reference from the function qe_reset() to the function
.init.text:cpm_muram_init()

Signed-off-by: Anton Vorontsov 
Signed-off-by: Kumar Gala

powerpc/QE: switch to the cpm_muram implementation

2008-06-10T16:11:21+00:00

This is very trivial patch. We're transitioning to the cpm_muram_*
calls. That's it.

Less trivial changes:
- BD_SC_* defines were defined in the cpm.h and qe.h, so to avoid redefines
  we remove BD_SC from the qe.h and use cpm.h along with cpm_muram_*
  prototypes;
- qe_muram_dump was unused and thus removed;
- added some code to the cpm_common.c to support legacy QE bindings
  (data-only node name).
- For convenience, define qe_* calls to cpm_*. So drivers need not to be
  changed.

Signed-off-by: Anton Vorontsov 
Signed-off-by: Kumar Gala

[POWERPC] QE: export qe_get_brg_clk()

2008-04-17T06:01:39+00:00

qe_get_brg_clk() will be used by the fsl_gtm routines.

Signed-off-by: Anton Vorontsov 
Signed-off-by: Kumar Gala

[POWERPC] QE: implement qe_muram_offset

2008-04-17T06:01:39+00:00

qe_muram_offset is the reverse of the qe_muram_addr, will be
used for the Freescale QE USB Host Controller driver.

This patch also moves qe_muram_addr into the qe.h header, plus
adds __iomem hints to use with sparse.

Signed-off-by: Anton Vorontsov 
Signed-off-by: Kumar Gala