1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.c b/arch/arm/mach-omap2/prcm_mpu44xx.c
new file mode 100644
index 000000000..5add541e3
--- /dev/null
+++ b/arch/arm/mach-omap2/prcm_mpu44xx.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP4 PRCM_MPU module functions
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ */
+
+#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
+ */
+struct omap_domain_base 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.va = prcm_mpu;
+}