linux/arch/arm/mach-omap2/prcm_mpu44xx.c
Paul Walmsley d9a16f9ab9 ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup
Split omap2_set_globals_prcm() into PRM, CM, and PRCM_MPU variants, since
these are all separate IP blocks.  This should make it easier to move the
PRM, CM, PRCM_MPU code into drivers/ in future patchsets.

At this point arch/arm/plat-omap/include/plat/prcm.h is empty; a
subsequent patch will remove it, and remove the #include from all the
files that #include it.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00

63 lines
1.4 KiB
C

/*
* 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;
}