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authorRajendra Nayak <rnayak@ti.com>2010-12-21 20:01:19 -0700
committerPaul Walmsley <paul@pwsan.com>2010-12-21 20:01:19 -0700
commit9b7fc907d9378f86eb6b823bbe84ec9ed584b091 (patch)
treeb4519c2eb01d58ca4a407048bcb3fd83cf846e1f /arch/arm/mach-omap2/powerdomain-common.c
parent12627578523d2d9396cae76b1dad0ed3dccf1730 (diff)
downloadlinux-9b7fc907d9378f86eb6b823bbe84ec9ed584b091.tar.bz2
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>
Diffstat (limited to 'arch/arm/mach-omap2/powerdomain-common.c')
-rw-r--r--arch/arm/mach-omap2/powerdomain-common.c111
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;
+}
+