/* * 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 __raw_readl(OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); } void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg) { __raw_writel(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; }