arch/arm/mach-omap2/cm44xx.c

   1 /*
   2  * OMAP4 CM1, CM2 module low-level functions
   3  *
   4  * Copyright (C) 2010 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  * These functions are intended to be used only by the cminst44xx.c file.
  12  * XXX Perhaps we should just move them there and make them static.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/types.h>
  17 #include <linux/errno.h>
  18 #include <linux/err.h>
  19 #include <linux/io.h>
  20
  21 #include "cm.h"
  22 #include "cm1_44xx.h"
  23 #include "cm2_44xx.h"
  24
  25 /* CM1 hardware module low-level functions */
  26
  27 /* Read a register in CM1 */
  28 u32 omap4_cm1_read_inst_reg(s16 inst, u16 reg)
  29 {
  30         return readl_relaxed(cm_base + inst + reg);
  31 }
  32
  33 /* Write into a register in CM1 */
  34 void omap4_cm1_write_inst_reg(u32 val, s16 inst, u16 reg)
  35 {
  36         writel_relaxed(val, cm_base + inst + reg);
  37 }
  38
  39 /* Read a register in CM2 */
  40 u32 omap4_cm2_read_inst_reg(s16 inst, u16 reg)
  41 {
  42         return readl_relaxed(cm2_base + inst + reg);
  43 }
  44
  45 /* Write into a register in CM2 */
  46 void omap4_cm2_write_inst_reg(u32 val, s16 inst, u16 reg)
  47 {
  48         writel_relaxed(val, cm2_base + inst + reg);
  49 }