Commit Graph

11 Commits

Author SHA1 Message Date
Santosh Shilimkar
233fd64e7f omap: Split OMAP2_IO_ADDRESS to L3 and L4
This patch splits OMAP2_IO_ADDRESS to OMAP2_L3_IO_ADDRESS and
OMAP2_L4_IO_ADDRESS to reclaim more IO space.

The omap_read*() and omap_write*() functions will work only over
L4 address space. Current omap kernel stack uses these functions
only to access registers over L4 io address space

Note that these macros should only be used when ioremap does
not work. Please use ioremap instead in all new code.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19 15:25:31 -07:00
Paul Walmsley
71348bcaac OMAP2/3/4 PRCM: add module IDLEST wait code
After a hardware module's clocks are enabled, Linux must wait for it
to indicate readiness via its IDLEST bit before attempting to access
the device, otherwise register accesses to the device may trigger an
abort.  This has traditionally been implemented in the clock
framework, but this is the wrong place for it: the clock framework
doesn't know which module clocks must be enabled for a module to leave
idle; and if a module is not in smart-idle mode, it may never leave
idle at all.  This type of information is best stored in a
per-hardware module data structure (coming in a following patch),
rather than a per-clock data structure.  The new code will use these new
functions to handle waiting for modules to enable.

Once hardware module data is filled in for all of the on-chip devices,
the clock framework code to handle IDLEST waiting can be removed.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-09-03 20:14:02 +03:00
Tony Lindgren
941132606c OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS instead
Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS,
and convert omap_read/write into a functions instead of a macros.

Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE.

In the long run, most code should use ioremap + __raw_read/write instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-28 10:50:33 -07:00
Kevin Hilman
364dd47466 OMAP3: PM: CM_REGADDR macros using wrong name
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-08-05 09:10:50 -07:00
Tony Lindgren
ef6685a6de ARM: OMAP2/3: Remove OMAP_CM_REGADDR
Processor specific macros should be used instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-05-25 11:26:46 -07:00
Tony Lindgren
8e3bd351d1 ARM: OMAP2/3: Remove OMAP_PRM_REGADDR and OMAP2_PRM_BASE
Remove OMAP_PRM_REGADDR and use processor specific defines instead.

Also fold in a patch from Kevin Hilman to add _OFFSET #defines
for the PRCM registers to be used with the prm_[read|write]_* macros.
These are used extensively in the forthcoming OMAP PM support.

Also remove now unused OMAP2_PRM_BASE.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-05-25 11:26:42 -07:00
Russell King
e8a91c953f [ARM] omap: Fix IO_ADDRESS() macros
OMAP1_IO_ADDRESS(), OMAP2_IO_ADDRESS() and IO_ADDRESS() returns cookies
for use with __raw_{read|write}* for accessing registers.  Therefore,
these macros should return (void __iomem *) cookies, not integer values.

Doing this improves typechecking, and means we can find those places
where, eg, DMA controllers are incorrectly given virtual addresses to
DMA to, or physical addresses are thrown through a virtual to physical
address translation.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-05 17:02:31 +01:00
Paul Walmsley
542313cc98 ARM: OMAP2: Clock: Add OMAP3 DPLL autoidle functions
This patch adds support for DPLL autoidle control to the OMAP3 clock
framework.  These functions will be used by the noncore DPLL enable
and disable code - this is because, according to the CDP code, the
DPLL autoidle status must be saved and restored across DPLL
lock/bypass/off transitions.

N.B.: the CORE DPLL (DPLL3) has three autoidle mode options, rather
than just two.  This code currently does not support the third option,
low-power bypass autoidle.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03 12:24:45 +03:00
Tony Lindgren
ff00fcc9ca ARM: OMAP: Turn CM and PRM access into functions
Otherwise compiling in omap2 and omap3 will not work.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03 12:24:44 +03:00
Tony Lindgren
a58caad113 ARM: OMAP: Introduce omap_globals and prcm access functions for multi-omap
New struct omap_globals contains the omap processor specific
module bases. Use omap_globals to set the various base addresses
to make detecting omap chip type simpler.

Also introduce OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS for future multi-omap
patches.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03 12:24:44 +03:00
Paul Walmsley
69d88a00a2 ARM: OMAP2: Add common register access for 24xx and 34xx
This patch adds common register access for 24xx and 34xx power
and clock management in order to share code between 24xx and 34xx.

Only change USB platform init code to use new register access, other
access will be changed in later patches.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-04-14 10:27:25 -07:00