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  1. 24 Apr, 2008 6 commits
    • Paul Walmsley's avatar
      clockdomains: add base OMAP2/3 clockdomain code · 4588613a
      Paul Walmsley authored 
      This patch creates an interface to the clockdomain registers in the
PRM/CM modules on OMAP2/3.  This interface is intended to be used by
PM code, e.g., pm.c; not by device drivers directly.

The patch also adds clockdomain usecount tracking.  This is intended
to be called whenever the first clock in a clockdomain is enabled, or
when the last enabled clock in a clockdomain is disabled.  If the
clockdomain is in software-supervised mode, the code will force-wakeup
or force-sleep the clockdomain.  If the clockdomain is in
hardware-supervised mode, the first clock enable will add sleep and
wakeup dependencies on a user-selectable set of parent domains (usually
MPU & IVA2), and the disable will remove them.

Each clockdomain will be defined in later patches as static
structures.  The clockdomain structures are linked into a list at boot
by clkdm_register(), similar to the OMAP clock code.

The patch adds a Kconfig option, CONFIG_OMAP_DEBUG_CLOCKDOMAIN, which
when enabled will emit verbose debug messages via pr_debug().
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      4588613a
    • Paul Walmsley's avatar
      add OMAP3 powerdomains · 3d4041ff
      Paul Walmsley authored 
      Add OMAP3-specific powerdomains.
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      3d4041ff
    • Paul Walmsley's avatar
      add OMAP2 powerdomains · 21b0accc
      Paul Walmsley authored 
      Add OMAP2-specific powerdomains.
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      21b0accc
    • Paul Walmsley's avatar
      add OMAP2/3 common powerdomains · e04c112d
      Paul Walmsley authored 
      Add powerdomains common to both OMAP2 and OMAP3 (WKUP and GFX/SGX).
Modify mach-omap2/io.c to initialize the powerdomain code on boot.
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      e04c112d
    • Paul Walmsley's avatar
      add base OMAP2/3 powerdomain code · 8800ed17
      Paul Walmsley authored 
      This patch creates an interface to the powerdomain registers in the
PRM/CM modules on OMAP2/3.  This interface is intended to be used by
PM code, e.g., pm.c; not by device drivers directly.

Each powerdomain will be defined in later patches as static
structures.  Also defined are dependencies between powerdomains,
used for adding and removing PM_WKDEP and CM_SLEEPDEP bits.  The
powerdomain structures are linked into a list at boot by
pwrdm_register(), similar to the OMAP clock code.

The patch adds a Kconfig option, CONFIG_OMAP_DEBUG_POWERDOMAIN, which
when enabled will emit verbose debug messages via pr_debug().
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      8800ed17
    • Paul Walmsley's avatar
      add OMAP chip type structure; clean up mach-omap2/id.c · b7a66cfb
      Paul Walmsley authored 
      Add a new OMAP chip identification interface, omap_chip_id.
omap_chip_id is a structure which contains one bit for each OMAP2/3
CPU type, and on 3430, ES level.  For example, the CHIP_IS_OMAP2420
bit is set in omap_chip at boot on an OMAP2420.  On OMAP3430ES2, both
CHIP_IS_OMAP3430 and CHIP_IS_OMAP3430ES2 bits are set.

omap_chip is set in mach-omap2/id.c by _set_omap_chip(). Other
code should use the omap_chip_is() function to test against omap_chip.

Also, clean up id.c by splitting some code out of
omap_check_revision() into its own function, _set_system_rev(); and
converting some debug printk()s into pr_debug().

Second revision.
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      b7a66cfb
  3. 23 Apr, 2008 34 commits