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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/mach-omap2/powerdomain-common.c
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-omap2/powerdomain-common.c')
-rw-r--r--arch/arm/mach-omap2/powerdomain-common.c109
1 files changed, 109 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 000000000..c40e5f009
--- /dev/null
+++ b/arch/arm/mach-omap2/powerdomain-common.c
@@ -0,0 +1,109 @@
+/*
+ * Common powerdomain framework functions
+ *
+ * Copyright (C) 2010-2011 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 <linux/bug.h>
+#include "pm.h"
+#include "cm.h"
+#include "cm-regbits-34xx.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;
+}
+