Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / arch / arm / mach-omap2 / powerdomain-common.c

diff --git a/arch/arm/mach-omap2/powerdomain-common.c b/arch/arm/mach-omap2/powerdomain-common.c
new file mode 100644 (file)
index 0000000..171fccd
--- /dev/null
+++ b/arch/arm/mach-omap2/powerdomain-common.c
@@ -0,0 +1,110 @@
+/*
+ *  linux/arch/arm/mach-omap2/powerdomain-common.c
+ *  Contains common powerdomain framework functions
+ *
+ *  Copyright (C) 2010 Texas Instruments, Inc.
+ *  Copyright (C) 2010 Nokia Corporation
+ *
+ * Derived from mach-omap2/powerdomain.c written by Paul Walmsley
+ *
+ * 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 <linux/kernel.h>
+#include "pm.h"
+#include "cm.h"
+#include "cm-regbits-34xx.h"
+#include "cm-regbits-44xx.h"
+#include "prm-regbits-34xx.h"
+#include "prm-regbits-44xx.h"
+
+/*
+ * OMAP3 and OMAP4 specific register bit initialisations
+ * Notice that the names here are not according to each power
+ * domain but the bit mapping used applies to all of them
+ */
+/* OMAP3 and OMAP4 Memory Onstate Masks (common across all power domains) */
+#define OMAP_MEM0_ONSTATE_MASK OMAP3430_SHAREDL1CACHEFLATONSTATE_MASK
+#define OMAP_MEM1_ONSTATE_MASK OMAP3430_L1FLATMEMONSTATE_MASK
+#define OMAP_MEM2_ONSTATE_MASK OMAP3430_SHAREDL2CACHEFLATONSTATE_MASK
+#define OMAP_MEM3_ONSTATE_MASK OMAP3430_L2FLATMEMONSTATE_MASK
+#define OMAP_MEM4_ONSTATE_MASK OMAP4430_OCP_NRET_BANK_ONSTATE_MASK
+
+/* OMAP3 and OMAP4 Memory Retstate Masks (common across all power domains) */
+#define OMAP_MEM0_RETSTATE_MASK OMAP3430_SHAREDL1CACHEFLATRETSTATE_MASK
+#define OMAP_MEM1_RETSTATE_MASK OMAP3430_L1FLATMEMRETSTATE_MASK
+#define OMAP_MEM2_RETSTATE_MASK OMAP3430_SHAREDL2CACHEFLATRETSTATE_MASK
+#define OMAP_MEM3_RETSTATE_MASK OMAP3430_L2FLATMEMRETSTATE_MASK
+#define OMAP_MEM4_RETSTATE_MASK OMAP4430_OCP_NRET_BANK_RETSTATE_MASK
+
+/* OMAP3 and OMAP4 Memory Status bits */
+#define OMAP_MEM0_STATEST_MASK OMAP3430_SHAREDL1CACHEFLATSTATEST_MASK
+#define OMAP_MEM1_STATEST_MASK OMAP3430_L1FLATMEMSTATEST_MASK
+#define OMAP_MEM2_STATEST_MASK OMAP3430_SHAREDL2CACHEFLATSTATEST_MASK
+#define OMAP_MEM3_STATEST_MASK OMAP3430_L2FLATMEMSTATEST_MASK
+#define OMAP_MEM4_STATEST_MASK OMAP4430_OCP_NRET_BANK_STATEST_MASK
+
+/* Common Internal functions used across OMAP rev's*/
+u32 omap2_pwrdm_get_mem_bank_onstate_mask(u8 bank)
+{
+       switch (bank) {
+       case 0:
+               return OMAP_MEM0_ONSTATE_MASK;
+       case 1:
+               return OMAP_MEM1_ONSTATE_MASK;
+       case 2:
+               return OMAP_MEM2_ONSTATE_MASK;
+       case 3:
+               return OMAP_MEM3_ONSTATE_MASK;
+       case 4:
+               return OMAP_MEM4_ONSTATE_MASK;
+       default:
+               WARN_ON(1); /* should never happen */
+               return -EEXIST;
+       }
+       return 0;
+}
+
+u32 omap2_pwrdm_get_mem_bank_retst_mask(u8 bank)
+{
+       switch (bank) {
+       case 0:
+               return OMAP_MEM0_RETSTATE_MASK;
+       case 1:
+               return OMAP_MEM1_RETSTATE_MASK;
+       case 2:
+               return OMAP_MEM2_RETSTATE_MASK;
+       case 3:
+               return OMAP_MEM3_RETSTATE_MASK;
+       case 4:
+               return OMAP_MEM4_RETSTATE_MASK;
+       default:
+               WARN_ON(1); /* should never happen */
+               return -EEXIST;
+       }
+       return 0;
+}
+
+u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank)
+{
+       switch (bank) {
+       case 0:
+               return OMAP_MEM0_STATEST_MASK;
+       case 1:
+               return OMAP_MEM1_STATEST_MASK;
+       case 2:
+               return OMAP_MEM2_STATEST_MASK;
+       case 3:
+               return OMAP_MEM3_STATEST_MASK;
+       case 4:
+               return OMAP_MEM4_STATEST_MASK;
+       default:
+               WARN_ON(1); /* should never happen */
+               return -EEXIST;
+       }
+       return 0;
+}
+