8 files changed, 75 insertions, 26 deletions

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index c638fe0d84e8..3078ff4d3c71 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -11,7 +11,7 @@ clock-common				= clock.o clock_common_data.o clockdomain.o
 
 obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common)
 obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(prcm-common) $(clock-common)
-obj-$(CONFIG_ARCH_OMAP4) += prcm.o
+obj-$(CONFIG_ARCH_OMAP4) += prcm.o clock.o
 
 obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
 
@@ -46,6 +46,7 @@ obj-$(CONFIG_ARCH_OMAP2)		+= clock2xxx.o clock2xxx_data.o
 obj-$(CONFIG_ARCH_OMAP2420)             += opp2420_data.o
 obj-$(CONFIG_ARCH_OMAP3)                += clock34xx.o clock34xx_data.o
 obj-$(CONFIG_ARCH_OMAP2430)             += opp2430_data.o
+obj-$(CONFIG_ARCH_OMAP4)                += clock44xx.o clock44xx_data.o
 
 # EMU peripherals
 obj-$(CONFIG_OMAP3_EMU)         += emu.o
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 4716206547ac..5cb2dcb5b23e 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -149,6 +149,7 @@ static int _dpll_test_fint(struct clk *clk, u8 n)
  * clockdomain pointer, and save it into the struct clk.  Intended to be
  * called during clk_register().  No return value.
  */
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
 void omap2_init_clk_clkdm(struct clk *clk)
 {
         struct clockdomain *clkdm;
@@ -166,6 +167,7 @@ void omap2_init_clk_clkdm(struct clk *clk)
                          "clkdm %s\n", clk->name, clk->clkdm_name);
         }
 }
+#endif
 
 /**
  * omap2_init_clksel_parent - set a clksel clk's parent field from the hardware
@@ -437,8 +439,10 @@ void omap2_clk_disable(struct clk *clk)
                 _omap2_clk_disable(clk);
                 if (clk->parent)
                         omap2_clk_disable(clk->parent);
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
                 if (clk->clkdm)
                         omap2_clkdm_clk_disable(clk->clkdm, clk);
+#endif
 
         }
 }
@@ -448,8 +452,10 @@ int omap2_clk_enable(struct clk *clk)
         int ret = 0;
 
         if (clk->usecount++ == 0) {
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
                 if (clk->clkdm)
                         omap2_clkdm_clk_enable(clk->clkdm, clk);
+#endif
 
                 if (clk->parent) {
                         ret = omap2_clk_enable(clk->parent);
@@ -468,8 +474,10 @@ int omap2_clk_enable(struct clk *clk)
         return ret;
 
 err:
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
         if (clk->clkdm)
                 omap2_clkdm_clk_disable(clk->clkdm, clk);
+#endif
         clk->usecount--;
         return ret;
 }
diff --git a/arch/arm/mach-omap2/clock44xx.c b/arch/arm/mach-omap2/clock44xx.c
new file mode 100644
index 000000000000..5b25d38d542e
--- /dev/null
+++ b/arch/arm/mach-omap2/clock44xx.c
@@ -0,0 +1,58 @@
+/*
+ * OMAP4-specific clock framework functions
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ *
+ * Rajendra Nayak (rnayak@ti.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include "clock.h"
+
+struct clk_functions omap2_clk_functions = {
+        .clk_enable             = omap2_clk_enable,
+        .clk_disable            = omap2_clk_disable,
+        .clk_round_rate         = omap2_clk_round_rate,
+        .clk_set_rate           = omap2_clk_set_rate,
+        .clk_set_parent         = omap2_clk_set_parent,
+        .clk_disable_unused     = omap2_clk_disable_unused,
+};
+
+/*
+ * Dummy functions for DPLL control. Plan is to re-use
+ * existing OMAP3 dpll control functions.
+ */
+
+unsigned long omap3_dpll_recalc(struct clk *clk)
+{
+        return 0;
+}
+
+int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate)
+{
+        return 0;
+}
+
+int omap3_noncore_dpll_enable(struct clk *clk)
+{
+        return 0;
+}
+
+void omap3_noncore_dpll_disable(struct clk *clk)
+{
+        return;
+}
+
+const struct clkops clkops_noncore_dpll_ops = {
+        .enable         = &omap3_noncore_dpll_enable,
+        .disable        = &omap3_noncore_dpll_disable,
+};
+
+void omap2_clk_prepare_for_reboot(void)
+{
+        return;
+}
diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index e8814a60ccf7..90a4086fbdf4 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -97,6 +97,10 @@
 
 /* CM2.CEFUSE_CM2 register offsets */
 
+/* OMAP4 modulemode control */
+#define OMAP4430_MODULEMODE_HWCTRL                      0
+#define OMAP4430_MODULEMODE_SWCTRL                      1
+
 /* Clock management domain register get/set */
 
 #ifndef __ASSEMBLER__
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index e86f5ca180ea..bd8cb5974726 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -517,7 +517,7 @@ void __init gpmc_init(void)
                 ck = "gpmc_fck";
                 l = OMAP34XX_GPMC_BASE;
         } else if (cpu_is_omap44xx()) {
-                ck = "gpmc_fck";
+                ck = "gpmc_ck";
                 l = OMAP44XX_GPMC_BASE;
         }
 
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 6a4d8e468703..ac9ea6007f27 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -35,7 +35,6 @@
 #include <plat/serial.h>
 #include <plat/vram.h>
 
-#ifndef CONFIG_ARCH_OMAP4       /* FIXME: Remove this once clkdev is ready */
 #include "clock.h"
 
 #include <plat/omap-pm.h>
@@ -44,7 +43,6 @@
 
 #include <plat/clockdomain.h>
 #include "clockdomains.h"
-#endif
 #include <plat/omap_hwmod.h>
 #include "omap_hwmod_2420.h"
 #include "omap_hwmod_2430.h"
@@ -321,8 +319,8 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
         omap_pm_if_early_init(mpu_opps, dsp_opps, l3_opps);
         pwrdm_init(powerdomains_omap);
         clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
-        omap2_clk_init();
 #endif
+        omap2_clk_init();
         omap_serial_early_init();
 #ifndef CONFIG_ARCH_OMAP4
         omap_hwmod_late_init();
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 353a7b31c62b..e2ea04a4c8a1 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -27,6 +27,7 @@ config ARCH_OMAP4
         bool "TI OMAP4"
         select CPU_V7
         select ARM_GIC
+        select COMMON_CLKDEV
 
 endchoice
 
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index b857d117a45a..89cafc937249 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -40,31 +40,10 @@ static struct clk_functions *arch_clock;
  * clock framework is not up , it is defined here to avoid rework in
  * every driver. Also dummy prcm reset function is added */
 
-/* Dummy hooks only for OMAP4.For rest OMAPs, common clkdev is used */
-#if defined(CONFIG_ARCH_OMAP4)
-struct clk *clk_get(struct device *dev, const char *id)
-{
-        return NULL;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
-
-void omap2_clk_prepare_for_reboot(void)
-{
-}
-EXPORT_SYMBOL(omap2_clk_prepare_for_reboot);
-#endif
 int clk_enable(struct clk *clk)
 {
         unsigned long flags;
         int ret = 0;
-        if (cpu_is_omap44xx())
-                /* OMAP4 clk framework not supported yet */
-                return 0;
 
         if (clk == NULL || IS_ERR(clk))
                 return -EINVAL;