arch/arm/mach-omap2/cm.h

   1 #ifndef __ARCH_ASM_MACH_OMAP2_CM_H
   2 #define __ARCH_ASM_MACH_OMAP2_CM_H
   3
   4 /*
   5  * OMAP2/3 Clock Management (CM) register definitions
   6  *
   7  * Copyright (C) 2007 Texas Instruments, Inc.
   8  * Copyright (C) 2007 Nokia Corporation
   9  *
  10  * Written by Paul Walmsley
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <asm/io.h>
  19 #include "prcm_common.h"
  20
  21
  22 #define OMAP_CM_REGADDR(module, reg)     (void __iomem *)IO_ADDRESS(OMAP2_CM_BASE + module + reg)
  23
  24 /*
  25  * Architecture-specific global CM registers
  26  * Use cm_{read,write}_reg() with these registers.
  27  */
  28
  29 #define OMAP3430_CM_REVISION            OMAP_CM_REGADDR(OCP_MOD, 0x0000)
  30 #define OMAP3430_CM_SYSCONFIG           OMAP_CM_REGADDR(OCP_MOD, 0x0010)
  31 #define OMAP3430_CM_POLCTRL             OMAP_CM_REGADDR(OCP_MOD, 0x009c)
  32
  33 #define OMAP3430_CM_CLKOUT_CTRL         OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070)
  34
  35
  36 /* Clock management global register get/set */
  37
  38 static void __attribute__((unused)) cm_write_reg(u32 val, void __iomem *addr)
  39 {
  40         pr_debug("cm_write_reg: writing 0x%0x to 0x%0x\n", val, (u32)addr);
  41
  42         __raw_writel(val, addr);
  43 }
  44
  45 static u32 __attribute__((unused)) cm_read_reg(void __iomem *addr)
  46 {
  47         return __raw_readl(addr);
  48 }
  49
  50
  51 /*
  52  * Module specific CM registers from CM_BASE + domain offset
  53  * Use cm_{read,write}_mod_reg() with these registers.
  54  */
  55
  56 /* Common between 24xx and 34xx */
  57
  58 #define CM_FCLKEN1                                      0x0000
  59 #define CM_FCLKEN                                       CM_FCLKEN1
  60 #define CM_CLKEN                                        CM_FCLKEN1
  61 #define CM_ICLKEN1                                      0x0010
  62 #define CM_ICLKEN                                       CM_ICLKEN1
  63 #define CM_ICLKEN2                                      0x0014
  64 #define CM_IDLEST1                                      0x0020
  65 #define CM_IDLEST                                       CM_IDLEST1
  66 #define CM_IDLEST2                                      0x0024
  67 #define CM_AUTOIDLE                                     0x0030
  68 #define CM_AUTOIDLE1                                    0x0030
  69 #define CM_AUTOIDLE2                                    0x0034
  70 #define CM_CLKSEL                                       0x0040
  71 #define CM_CLKSEL1                                      CM_CLKSEL
  72 #define CM_CLKSEL2                                      0x0044
  73 #define CM_CLKSTCTRL                                    0x0048
  74
  75
  76 /* Architecture-specific registers */
  77
  78 #define OMAP24XX_CM_FCLKEN2                             0x0004
  79 #define OMAP24XX_CM_ICLKEN4                             0x001c
  80 #define OMAP24XX_CM_AUTOIDLE3                           0x0038
  81 #define OMAP24XX_CM_AUTOIDLE4                           0x003c
  82
  83 #define OMAP2430_CM_ICLKEN3                             0x0018
  84 #define OMAP2430_CM_IDLEST3                             0x0028
  85
  86
  87 /* Clock management domain register get/set */
  88
  89 static void __attribute__((unused)) cm_write_mod_reg(u32 val, s16 module, s16 idx)
  90 {
  91         cm_write_reg(val, OMAP_CM_REGADDR(module, idx));
  92 }
  93
  94 static u32 __attribute__((unused)) cm_read_mod_reg(s16 module, s16 idx)
  95 {
  96         return cm_read_reg(OMAP_CM_REGADDR(module, idx));
  97 }
  98
  99 /* CM register bits shared between 24XX and 3430 */
 100
 101 /* CM_CLKSEL_GFX */
 102 #define OMAP_CLKSEL_GFX_SHIFT                           0
 103 #define OMAP_CLKSEL_GFX_MASK                            (0x7 << 0)
 104
 105 /* CM_ICLKEN_GFX */
 106 #define OMAP_EN_GFX_SHIFT                               0
 107 #define OMAP_EN_GFX                                     (1 << 0)
 108
 109 /* CM_IDLEST_GFX */
 110 #define OMAP_ST_GFX                                     (1 << 0)
 111
 112 #define OMAP3430_CM_CLKEN_PLL                           0x0004
 113 #define OMAP3430_CM_IDLEST_PLL                          CM_IDLEST2
 114 #define OMAP3430_CM_AUTOIDLE_PLL                        CM_AUTOIDLE2
 115 #define OMAP3430_CM_CLKSEL1                             CM_CLKSEL
 116 #define OMAP3430_CM_CLKSEL1_PLL                         CM_CLKSEL
 117 #define OMAP3430_CM_CLKSEL2_PLL                         CM_CLKSEL2
 118 #define OMAP3430_CM_SLEEPDEP                            CM_CLKSEL2
 119 #define OMAP3430_CM_CLKSEL3                             CM_CLKSTCTRL
 120 #define OMAP3430_CM_CLKSTST                             0x004c
 121 #define OMAP3430_CM_CLKSEL2_EMU                         0x0050
 122 #define OMAP3430_CM_CLKSEL3_EMU                         0x0054
 123
 124
 125
 126 #endif