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authorPawel Moll <pawel.moll@arm.com>2012-07-13 12:48:16 +0200
committerPawel Moll <pawel.moll@arm.com>2012-07-13 12:48:16 +0200
commitd1b8a775fdb686c949d31e366a898b64147543e0 (patch)
treef94ab919c86b5a259fcd879d15926153b73d80b4 /arch/arm/mach-vexpress/include
parentARM: versatile: Make plat-versatile clock optional (diff)
downloadlinux-d1b8a775fdb686c949d31e366a898b64147543e0.tar.xz
linux-d1b8a775fdb686c949d31e366a898b64147543e0.zip
ARM: vexpress: Initial common clock support
This patch makes Versatile Express use the common clock framework instead of the plat-versatile implementation. It defines clock provider for VE's OSCs (clock generators) and registers all required fixed and variable clock sources (for both motherboard and core tile). This is a simple conversion of the existing state and will be extended (and migrated to drivers/clk) in the near future. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Diffstat (limited to 'arch/arm/mach-vexpress/include')
-rw-r--r--arch/arm/mach-vexpress/include/mach/clkdev.h15
-rw-r--r--arch/arm/mach-vexpress/include/mach/motherboard.h19
2 files changed, 19 insertions, 15 deletions
diff --git a/arch/arm/mach-vexpress/include/mach/clkdev.h b/arch/arm/mach-vexpress/include/mach/clkdev.h
deleted file mode 100644
index 3f8307d73cad..000000000000
--- a/arch/arm/mach-vexpress/include/mach/clkdev.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef __ASM_MACH_CLKDEV_H
-#define __ASM_MACH_CLKDEV_H
-
-#include <plat/clock.h>
-
-struct clk {
- const struct clk_ops *ops;
- unsigned long rate;
- const struct icst_params *params;
-};
-
-#define __clk_get(clk) ({ 1; })
-#define __clk_put(clk) do { } while (0)
-
-#endif
diff --git a/arch/arm/mach-vexpress/include/mach/motherboard.h b/arch/arm/mach-vexpress/include/mach/motherboard.h
index f004ec982d29..1e388c7bf4d7 100644
--- a/arch/arm/mach-vexpress/include/mach/motherboard.h
+++ b/arch/arm/mach-vexpress/include/mach/motherboard.h
@@ -1,6 +1,8 @@
#ifndef __MACH_MOTHERBOARD_H
#define __MACH_MOTHERBOARD_H
+#include <linux/clk-provider.h>
+
/*
* Physical addresses, offset from V2M_PA_CS0-3
*/
@@ -147,4 +149,21 @@ struct ct_desc {
extern struct ct_desc *ct_desc;
+/*
+ * OSC clock provider
+ */
+struct v2m_osc {
+ struct clk_hw hw;
+ u8 site; /* 0 = motherboard, 1 = site 1, 2 = site 2 */
+ u8 stack; /* board stack position */
+ u16 osc;
+ unsigned long rate_min;
+ unsigned long rate_max;
+ unsigned long rate_default;
+};
+
+#define to_v2m_osc(osc) container_of(osc, struct v2m_osc, hw)
+
+struct clk *v2m_osc_register(const char *name, struct v2m_osc *osc);
+
#endif