Commit Graph

6 Commits

Author SHA1 Message Date
Paul Walmsley
7eb1afc976 [ARM] OMAP3 powerdomains: make USBTLL SAR only available on ES3.1 and beyond
Richard Woodruff writes that chip errata prevent USBTLL SAR from working
on OMAP3 ES levels before ES3.1:

http://marc.info/?l=linux-arm-kernel&m=123319614808833&w=2

Update the OMAP3 powerdomain structures appropriately.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-23 14:52:51 +00:00
Paul Walmsley
d41ad52040 [ARM] OMAP3: update ES level flags to discriminate between post-ES2 revisions
Some OMAP3 chip behaviors change in ES levels after ES2.  Modify the
existing omap_chip flags to add options for ES3.0 and ES3.1.

Add a new macro, CHIP_GE_OMAP3430ES2, to cover ES levels from ES2
onwards - a common pattern for OMAP3 features.  Update all current
users of the omap_chip macros to use this new macro.

Also add CHIP_GE_OMAP3430ES3_1 to cover the USBTLL SAR errata case
(described and fixed in the following patch)

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-23 14:52:51 +00:00
Paul Walmsley
be48ea74d4 [ARM] OMAP3 powerdomains: remove RET from SGX power states list
The SGX device on OMAP3 does not support retention, so remove RET from the
list of possible SGX power states.  Problem debugged by Richard Woodruff
<r-woodruff2@ti.com>.

Signed-off-by: Richard Woodruff <r-woodruff2@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:30 +00:00
Paul Walmsley
46e0ccf8ae [ARM] OMAP3 PRCM: add DPLL1-5 powerdomains, clockdomains; mark clocks
Each DPLL exists in its own powerdomain (cf 34xx TRM figure 4-18) and
clockdomain; so, create powerdomain and clockdomain structures for them.
Mark each DPLL clock as belonging to their respective DPLL clockdomain.
cf. 34xx TRM Table 4-27 (among other references).

linux-omap source commits are acdb615850b9b4f7d1ab68133a16be8c8c0e7419 and
a8798a48f33e9268dcc7f30a4b4a3ce4220fe0c9.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:30 +00:00
Paul Walmsley
207233533d [ARM] OMAP3: move USBHOST SAR handling from clock framework to powerdomain layer
Remove usbhost_sar_fclk from the OMAP3 clock framework.  The bit that
the clock was tweaking doesn't actually enable or disable a clock; it
controls whether the hardware will save and restore USBHOST state
when the powerdomain changes state.  (That happens to coincidentally
enable a clock for the duration of the operation, hence the earlier
confusion.)

In place of the clock, mark the USBHOST powerdomain as supporting
hardware save-and-restore functionality.

linux-omap source commit is f3ceac86a9d425d101d606d87a5af44afef27179.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:25 +00:00
Paul Walmsley
ecb24aa129 ARM: OMAP: Powerdomain: Add OMAP3 powerdomains
Add OMAP3-specific powerdomains.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-08-19 11:08:43 +03:00