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 <plat/common.h>
  22
  23 #include "cm.h"
  24 #include "cm1_44xx.h"
  25 #include "cm2_44xx.h"
  26 #include "cm-regbits-44xx.h"
  27
  28 /* CM1 hardware module low-level functions */
  29
  30 /* Read a register in CM1 */
  31 u32 omap4_cm1_read_inst_reg(s16 inst, u16 reg)
  32 {
  33         return __raw_readl(OMAP44XX_CM1_REGADDR(inst, reg));
  34 }
  35
  36 /* Write into a register in CM1 */
  37 void omap4_cm1_write_inst_reg(u32 val, s16 inst, u16 reg)
  38 {
  39         __raw_writel(val, OMAP44XX_CM1_REGADDR(inst, reg));
  40 }
  41
  42 /* Read a register in CM2 */
  43 u32 omap4_cm2_read_inst_reg(s16 inst, u16 reg)
  44 {
  45         return __raw_readl(OMAP44XX_CM2_REGADDR(inst, reg));
  46 }
  47
  48 /* Write into a register in CM2 */
  49 void omap4_cm2_write_inst_reg(u32 val, s16 inst, u16 reg)
  50 {
  51         __raw_writel(val, OMAP44XX_CM2_REGADDR(inst, reg));
  52 }