ux500: Add prcmu support for operating points

Adds support in PRCMU driver to handle CPU and APE operating points.

Signed-off-by: Martin Persson <martin.persson@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>

3 files changed, 53 insertions, 6 deletions

diff --git a/arch/arm/mach-ux500/include/mach/prcmu-defs.h b/arch/arm/mach-ux500/include/mach/prcmu-defs.h
new file mode 100644
index 000000000000..848ba64b561f
--- /dev/null
+++ b/arch/arm/mach-ux500/include/mach/prcmu-defs.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) STMicroelectronics 2009
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com>
+ * Author: Martin Persson <martin.persson@stericsson.com>
+ *
+ * License Terms: GNU General Public License v2
+ *
+ * PRCM Unit definitions
+ */
+
+#ifndef __MACH_PRCMU_DEFS_H
+#define __MACH_PRCMU_DEFS_H
+
+enum prcmu_cpu_opp {
+        CPU_OPP_INIT      = 0x00,
+        CPU_OPP_NO_CHANGE = 0x01,
+        CPU_OPP_100       = 0x02,
+        CPU_OPP_50        = 0x03,
+        CPU_OPP_MAX       = 0x04,
+        CPU_OPP_EXT_CLK   = 0x07
+};
+enum prcmu_ape_opp {
+        APE_OPP_NO_CHANGE = 0x00,
+        APE_OPP_100       = 0x02,
+        APE_OPP_50        = 0x03,
+};
+
+#endif /* __MACH_PRCMU_DEFS_H */
diff --git a/arch/arm/mach-ux500/include/mach/prcmu-regs.h b/arch/arm/mach-ux500/include/mach/prcmu-regs.h
index 8885f39a6421..455467e88791 100644
--- a/arch/arm/mach-ux500/include/mach/prcmu-regs.h
+++ b/arch/arm/mach-ux500/include/mach/prcmu-regs.h
@@ -1,10 +1,15 @@
 /*
- * Copyright (c) 2009 ST-Ericsson SA
+ * Copyright (C) STMicroelectronics 2009
+ * Copyright (C) ST-Ericsson SA 2010
  *
- * 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.
+ * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.com>
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com>
+ *
+ * License Terms: GNU General Public License v2
+ *
+ * PRCM Unit registers
  */
+
 #ifndef __MACH_PRCMU_REGS_H
 #define __MACH_PRCMU_REGS_H
 
@@ -88,4 +93,4 @@
 /* Miscellaneous unit registers */
 #define PRCM_DSI_SW_RESET          (_PRCMU_BASE + 0x324)
 
-#endif /* __MACH_PRCMU__REGS_H */
+#endif /* __MACH_PRCMU_REGS_H */
diff --git a/arch/arm/mach-ux500/include/mach/prcmu.h b/arch/arm/mach-ux500/include/mach/prcmu.h
index daa9d3ab7e0c..c49e456162ef 100644
--- a/arch/arm/mach-ux500/include/mach/prcmu.h
+++ b/arch/arm/mach-ux500/include/mach/prcmu.h
@@ -2,15 +2,27 @@
  * Copyright (C) STMicroelectronics 2009
  * Copyright (C) ST-Ericsson SA 2010
  *
+ * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.com>
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com>
+ * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
+ *
  * License Terms: GNU General Public License v2
  *
- * PRCMU f/w APIs
+ * PRCM Unit f/w API
  */
 #ifndef __MACH_PRCMU_H
 #define __MACH_PRCMU_H
+#include <mach/prcmu-defs.h>
 
 void __init prcmu_early_init(void);
 int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size);
 int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size);
+int prcmu_set_ape_opp(enum prcmu_ape_opp opp);
+int prcmu_set_cpu_opp(enum prcmu_cpu_opp opp);
+int prcmu_set_ape_cpu_opps(enum prcmu_ape_opp ape_opp,
+                           enum prcmu_cpu_opp cpu_opp);
+int prcmu_get_ape_opp(void);
+int prcmu_get_cpu_opp(void);
+bool prcmu_has_arm_maxopp(void);
 
 #endif /* __MACH_PRCMU_H */