1/*
 2 * OMAP4 PRCM_MPU module functions
 3 *
 4 * Copyright (C) 2009 Nokia Corporation
 5 * Paul Walmsley
 6 *
 7 * This program is free software; you can redistribute it and/or modify
 8 * it under the terms of the GNU General Public License version 2 as
 9 * published by the Free Software Foundation.
10 */
11
12#include <linux/kernel.h>
13#include <linux/types.h>
14#include <linux/errno.h>
15#include <linux/err.h>
16#include <linux/io.h>
17
18#include "iomap.h"
19#include "common.h"
20#include "prcm_mpu44xx.h"
21#include "cm-regbits-44xx.h"
22
 
 
 
 
 
 
23/* PRCM_MPU low-level functions */
24
25u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg)
26{
27	return __raw_readl(OMAP44XX_PRCM_MPU_REGADDR(inst, reg));
28}
29
30void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg)
31{
32	__raw_writel(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg));
33}
34
35u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg)
36{
37	u32 v;
38
39	v = omap4_prcm_mpu_read_inst_reg(inst, reg);
40	v &= ~mask;
41	v |= bits;
42	omap4_prcm_mpu_write_inst_reg(v, inst, reg);
43
44	return v;
 
 
 
 
 
 
 
 
 
 
 
45}

 1/*
 2 * OMAP4 PRCM_MPU module functions
 3 *
 4 * Copyright (C) 2009 Nokia Corporation
 5 * Paul Walmsley
 6 *
 7 * This program is free software; you can redistribute it and/or modify
 8 * it under the terms of the GNU General Public License version 2 as
 9 * published by the Free Software Foundation.
10 */
11
12#include <linux/kernel.h>
13#include <linux/types.h>
14#include <linux/errno.h>
15#include <linux/err.h>
16#include <linux/io.h>
17
18#include "iomap.h"
19#include "common.h"
20#include "prcm_mpu44xx.h"
21#include "cm-regbits-44xx.h"
22
23/*
24 * prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP
25 *   block registers
26 */
27void __iomem *prcm_mpu_base;
28
29/* PRCM_MPU low-level functions */
30
31u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg)
32{
33	return __raw_readl(OMAP44XX_PRCM_MPU_REGADDR(inst, reg));
34}
35
36void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg)
37{
38	__raw_writel(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg));
39}
40
41u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg)
42{
43	u32 v;
44
45	v = omap4_prcm_mpu_read_inst_reg(inst, reg);
46	v &= ~mask;
47	v |= bits;
48	omap4_prcm_mpu_write_inst_reg(v, inst, reg);
49
50	return v;
51}
52
53/**
54 * omap2_set_globals_prcm_mpu - set the MPU PRCM base address (for early use)
55 * @prcm_mpu: PRCM_MPU base virtual address
56 *
57 * XXX Will be replaced when the PRM/CM drivers are completed.
58 */
59void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu)
60{
61	prcm_mpu_base = prcm_mpu;
62}