ARM: OMAP2: Change 24xx to use shared clock code and new reg access

This patch changes 24xx to use shared clock code and new register
access.

Note that patch adds some temporary OLD_CK defines to keep patch
more readable. These temporary defines will be removed in the next
patch. Also not all clocks are changed in this patch to limit the
size.

Also, the patch fixes few incorrect clock defines in clock24xx.h.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 53 insertions, 12 deletions

diff --git a/include/asm-arm/arch-omap/clock.h b/include/asm-arm/arch-omap/clock.h
index fc7b80643852..ff0f94de2de9 100644
--- a/include/asm-arm/arch-omap/clock.h
+++ b/include/asm-arm/arch-omap/clock.h
@@ -14,6 +14,30 @@
 #define __ARCH_ARM_OMAP_CLOCK_H
 
 struct module;
+struct clk;
+
+#if defined(CONFIG_ARCH_OMAP2)
+
+struct clksel_rate {
+        u8                      div;
+        u32                     val;
+        u8                      flags;
+};
+
+struct clksel {
+        struct clk               *parent;
+        const struct clksel_rate *rates;
+};
+
+struct dpll_data {
+        void __iomem            *mult_div1_reg;
+        u32                     mult_mask;
+        u32                     div1_mask;
+        void __iomem            *div2_reg;
+        u32                     div2_mask;
+};
+
+#endif
 
 struct clk {
         struct list_head        node;
@@ -25,8 +49,6 @@ struct clk {
         __u32                   flags;
         void __iomem            *enable_reg;
         __u8                    enable_bit;
-        __u8                    rate_offset;
-        __u8                    src_offset;
         __s8                    usecount;
         void                    (*recalc)(struct clk *);
         int                     (*set_rate)(struct clk *, unsigned long);
@@ -34,6 +56,16 @@ struct clk {
         void                    (*init)(struct clk *);
         int                     (*enable)(struct clk *);
         void                    (*disable)(struct clk *);
+#if defined(CONFIG_ARCH_OMAP2)
+        u8                      fixed_div;
+        void __iomem            *clksel_reg;
+        u32                     clksel_mask;
+        const struct clksel     *clksel;
+        const struct dpll_data  *dpll_data;
+#else
+        __u8                    rate_offset;
+        __u8                    src_offset;
+#endif
 };
 
 struct clk_functions {
@@ -54,10 +86,12 @@ extern int clk_init(struct clk_functions * custom_clocks);
 extern int clk_register(struct clk *clk);
 extern void clk_unregister(struct clk *clk);
 extern void propagate_rate(struct clk *clk);
+extern void recalculate_root_clocks(void);
 extern void followparent_recalc(struct clk * clk);
 extern void clk_allow_idle(struct clk *clk);
 extern void clk_deny_idle(struct clk *clk);
 extern int clk_get_usecount(struct clk *clk);
+extern void clk_enable_init_clocks(void);
 
 /* Clock flags */
 #define RATE_CKCTL              (1 << 0)        /* Main fixed ratio clocks */
@@ -71,22 +105,29 @@ extern int clk_get_usecount(struct clk *clk);
 #define CLOCK_NO_IDLE_PARENT    (1 << 8)
 #define DELAYED_APP             (1 << 9)        /* Delay application of clock */
 #define CONFIG_PARTICIPANT      (1 << 10)       /* Fundamental clock */
-#define CM_MPU_SEL1             (1 << 11)       /* Domain divider/source */
-#define CM_DSP_SEL1             (1 << 12)
-#define CM_GFX_SEL1             (1 << 13)
-#define CM_MODEM_SEL1           (1 << 14)
-#define CM_CORE_SEL1            (1 << 15)       /* Sets divider for many */
-#define CM_CORE_SEL2            (1 << 16)       /* sets parent for GPT */
-#define CM_WKUP_SEL1            (1 << 17)
-#define CM_PLL_SEL1             (1 << 18)
-#define CM_PLL_SEL2             (1 << 19)
-#define CM_SYSCLKOUT_SEL1       (1 << 20)
+#define ENABLE_ON_INIT          (1 << 11)       /* Enable upon framework init */
+#define INVERT_ENABLE           (1 << 12)       /* 0 enables, 1 disables */
+/* bits 13-20 are currently free */
 #define CLOCK_IN_OMAP310        (1 << 21)
 #define CLOCK_IN_OMAP730        (1 << 22)
 #define CLOCK_IN_OMAP1510       (1 << 23)
 #define CLOCK_IN_OMAP16XX       (1 << 24)
 #define CLOCK_IN_OMAP242X       (1 << 25)
 #define CLOCK_IN_OMAP243X       (1 << 26)
+#define CLOCK_IN_OMAP343X       (1 << 27)       /* clocks common to all 343X */
+#define PARENT_CONTROLS_CLOCK   (1 << 28)
+#define CLOCK_IN_OMAP3430ES1    (1 << 29)       /* 3430ES1 clocks only */
+#define CLOCK_IN_OMAP3430ES2    (1 << 30)       /* 3430ES2 clocks only */
+
+/* Clksel_rate flags */
+#define DEFAULT_RATE            (1 << 0)
+#define RATE_IN_242X            (1 << 1)
+#define RATE_IN_243X            (1 << 2)
+#define RATE_IN_343X            (1 << 3)        /* rates common to all 343X */
+#define RATE_IN_3430ES2         (1 << 4)        /* 3430ES2 rates only */
+
+#define RATE_IN_24XX            (RATE_IN_242X | RATE_IN_243X)
+
 
 /* CM_CLKSEL2_PLL.CORE_CLK_SRC options (24XX) */
 #define CORE_CLK_SRC_32K                0