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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-omap2/prcm_mpu44xx.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/mach-omap2/prcm_mpu44xx.c')
-rw-r--r--kernel/arch/arm/mach-omap2/prcm_mpu44xx.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-omap2/prcm_mpu44xx.c b/kernel/arch/arm/mach-omap2/prcm_mpu44xx.c
new file mode 100644
index 000000000..cdbee6326
--- /dev/null
+++ b/kernel/arch/arm/mach-omap2/prcm_mpu44xx.c
@@ -0,0 +1,62 @@
+/*
+ * OMAP4 PRCM_MPU module functions
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * 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/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include "iomap.h"
+#include "common.h"
+#include "prcm_mpu44xx.h"
+#include "cm-regbits-44xx.h"
+
+/*
+ * prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP
+ * block registers
+ */
+void __iomem *prcm_mpu_base;
+
+/* PRCM_MPU low-level functions */
+
+u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg)
+{
+ return readl_relaxed(OMAP44XX_PRCM_MPU_REGADDR(inst, reg));
+}
+
+void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg)
+{
+ writel_relaxed(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg));
+}
+
+u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg)
+{
+ u32 v;
+
+ v = omap4_prcm_mpu_read_inst_reg(inst, reg);
+ v &= ~mask;
+ v |= bits;
+ omap4_prcm_mpu_write_inst_reg(v, inst, reg);
+
+ return v;
+}
+
+/**
+ * omap2_set_globals_prcm_mpu - set the MPU PRCM base address (for early use)
+ * @prcm_mpu: PRCM_MPU base virtual address
+ *
+ * XXX Will be replaced when the PRM/CM drivers are completed.
+ */
+void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu)
+{
+ prcm_mpu_base = prcm_mpu;
+}