ARM: OMAP2+: CM/hwmod: split CM functions into OMAP2, OMAP3-specific files

Move OMAP3xxx-specific CM functions & macros into cm3xxx.[ch] and
OMAP2xxx-specific macros into cm2xxx.[ch].  Move basic CM register
access functions into static inline functions in cm2xxx_3xxx.h,
leaving only OMAP2/3 hardreset functions in cm2xxx_3xxx.c.

As part of this, split the CM and hwmod code that waits for devices to
become ready into SoC-specific functions.

This is in preparation for the upcoming move of this code to drivers/.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 41 insertions, 8 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 525c58d25730..504e0e0ecbbd 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -147,7 +147,8 @@
 #include "common.h"
 #include "clockdomain.h"
 #include "powerdomain.h"
-#include "cm2xxx_3xxx.h"
+#include "cm2xxx.h"
+#include "cm3xxx.h"
 #include "cminst44xx.h"
 #include "cm33xx.h"
 #include "prm3xxx.h"
@@ -2668,7 +2669,7 @@ static int __init _alloc_linkspace(struct omap_hwmod_ocp_if **ois)
 /* Static functions intended only for use in soc_ops field function pointers */
 
 /**
- * _omap2_wait_target_ready - wait for a module to leave slave idle
+ * _omap2xxx_wait_target_ready - wait for a module to leave slave idle
  * @oh: struct omap_hwmod *
  *
  * Wait for a module @oh to leave slave idle.  Returns 0 if the module
@@ -2676,7 +2677,7 @@ static int __init _alloc_linkspace(struct omap_hwmod_ocp_if **ois)
  * slave idle; otherwise, pass along the return value of the
  * appropriate *_cm*_wait_module_ready() function.
  */
-static int _omap2_wait_target_ready(struct omap_hwmod *oh)
+static int _omap2xxx_wait_target_ready(struct omap_hwmod *oh)
 {
         if (!oh)
                 return -EINVAL;
@@ -2689,9 +2690,36 @@ static int _omap2_wait_target_ready(struct omap_hwmod *oh)
 
         /* XXX check module SIDLEMODE, hardreset status, enabled clocks */
 
-        return omap2_cm_wait_module_ready(oh->prcm.omap2.module_offs,
-                                          oh->prcm.omap2.idlest_reg_id,
-                                          oh->prcm.omap2.idlest_idle_bit);
+        return omap2xxx_cm_wait_module_ready(oh->prcm.omap2.module_offs,
+                                             oh->prcm.omap2.idlest_reg_id,
+                                             oh->prcm.omap2.idlest_idle_bit);
+}
+
+/**
+ * _omap3xxx_wait_target_ready - wait for a module to leave slave idle
+ * @oh: struct omap_hwmod *
+ *
+ * Wait for a module @oh to leave slave idle.  Returns 0 if the module
+ * does not have an IDLEST bit or if the module successfully leaves
+ * slave idle; otherwise, pass along the return value of the
+ * appropriate *_cm*_wait_module_ready() function.
+ */
+static int _omap3xxx_wait_target_ready(struct omap_hwmod *oh)
+{
+        if (!oh)
+                return -EINVAL;
+
+        if (oh->flags & HWMOD_NO_IDLEST)
+                return 0;
+
+        if (!_find_mpu_rt_port(oh))
+                return 0;
+
+        /* XXX check module SIDLEMODE, hardreset status, enabled clocks */
+
+        return omap3xxx_cm_wait_module_ready(oh->prcm.omap2.module_offs,
+                                             oh->prcm.omap2.idlest_reg_id,
+                                             oh->prcm.omap2.idlest_idle_bit);
 }
 
 /**
@@ -3959,8 +3987,13 @@ int omap_hwmod_pad_route_irq(struct omap_hwmod *oh, int pad_idx, int irq_idx)
  */
 void __init omap_hwmod_init(void)
 {
-        if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
-                soc_ops.wait_target_ready = _omap2_wait_target_ready;
+        if (cpu_is_omap24xx()) {
+                soc_ops.wait_target_ready = _omap2xxx_wait_target_ready;
+                soc_ops.assert_hardreset = _omap2_assert_hardreset;
+                soc_ops.deassert_hardreset = _omap2_deassert_hardreset;
+                soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted;
+        } else if (cpu_is_omap34xx()) {
+                soc_ops.wait_target_ready = _omap3xxx_wait_target_ready;
                 soc_ops.assert_hardreset = _omap2_assert_hardreset;
                 soc_ops.deassert_hardreset = _omap2_deassert_hardreset;
                 soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted;