OMAP: powerdomain: Arch specific funcs for mem control

Define the following architecture specific funtions for omap2/3/4
.pwrdm_set_mem_onst
.pwrdm_set_mem_retst
.pwrdm_read_mem_pwrst
.pwrdm_read_prev_mem_pwrst
.pwrdm_read_mem_retst
.pwrdm_clear_all_prev_pwrst
.pwrdm_enable_hdwr_sar
.pwrdm_disable_hdwr_sar
.pwrdm_wait_transition
.pwrdm_set_lowpwrstchange

Convert the platform-independent framework to call these functions.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: rearranged Makefile changes]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 111 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/powerdomain-common.c b/arch/arm/mach-omap2/powerdomain-common.c
new file mode 100644
index 000000000000..cb01c7a3689a
--- /dev/null
+++ b/arch/arm/mach-omap2/powerdomain-common.c
@@ -0,0 +1,111 @@
+/*
+ *  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"
+#include "powerdomains.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;
+}
+