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} 46