arch/arm/mach-omap1/pm.h

   1 /*
   2  * arch/arm/mach-omap1/pm.h
   3  *
   4  * Header file for OMAP1 Power Management Routines
   5  *
   6  * Author: MontaVista Software, Inc.
   7  *         support@mvista.com
   8  *
   9  * Copyright 2002 MontaVista Software Inc.
  10  *
  11  * Cleanup 2004 for Linux 2.6 by Dirk Behme <dirk.behme@de.bosch.com>
  12  *
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU General Public License as published by the
  15  * Free Software Foundation; either version 2 of the License, or (at your
  16  * option) any later version.
  17  *
  18  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  19  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  20  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
  21  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  25  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * You should have received a copy of the GNU General Public License along
  30  * with this program; if not, write to the Free Software Foundation, Inc.,
  31  * 675 Mass Ave, Cambridge, MA 02139, USA.
  32  */
  33
  34 #ifndef __ARCH_ARM_MACH_OMAP1_PM_H
  35 #define __ARCH_ARM_MACH_OMAP1_PM_H
  36
  37 /*
  38  * ----------------------------------------------------------------------------
  39  * Register and offset definitions to be used in PM assembler code
  40  * ----------------------------------------------------------------------------
  41  */
  42 #define CLKGEN_REG_ASM_BASE             OMAP1_IO_ADDRESS(0xfffece00)
  43 #define ARM_IDLECT1_ASM_OFFSET          0x04
  44 #define ARM_IDLECT2_ASM_OFFSET          0x08
  45
  46 #define TCMIF_ASM_BASE                  OMAP1_IO_ADDRESS(0xfffecc00)
  47 #define EMIFS_CONFIG_ASM_OFFSET         0x0c
  48 #define EMIFF_SDRAM_CONFIG_ASM_OFFSET   0x20
  49
  50 /*
  51  * ----------------------------------------------------------------------------
  52  * Power management bitmasks
  53  * ----------------------------------------------------------------------------
  54  */
  55 #define IDLE_WAIT_CYCLES                0x00000fff
  56 #define PERIPHERAL_ENABLE               0x2
  57
  58 #define SELF_REFRESH_MODE               0x0c000001
  59 #define IDLE_EMIFS_REQUEST              0xc
  60 #define MODEM_32K_EN                    0x1
  61 #define PER_EN                          0x1
  62
  63 #define CPU_SUSPEND_SIZE                200
  64 #define ULPD_LOW_PWR_EN                 0x0001
  65 #define ULPD_DEEP_SLEEP_TRANSITION_EN   0x0010
  66 #define ULPD_SETUP_ANALOG_CELL_3_VAL    0
  67 #define ULPD_POWER_CTRL_REG_VAL         0x0219
  68
  69 #define DSP_IDLE_DELAY                  10
  70 #define DSP_IDLE                        0x0040
  71 #define DSP_RST                         0x0004
  72 #define DSP_ENABLE                      0x0002
  73 #define SUFFICIENT_DSP_RESET_TIME       1000
  74 #define DEFAULT_MPUI_CONFIG             0x05cf
  75 #define ENABLE_XORCLK                   0x2
  76 #define DSP_CLOCK_ENABLE                0x2000
  77 #define DSP_IDLE_MODE                   0x2
  78 #define TC_IDLE_REQUEST                 (0x0000000c)
  79
  80 #define IRQ_LEVEL2                      (1<<0)
  81 #define IRQ_KEYBOARD                    (1<<1)
  82 #define IRQ_UART2                       (1<<15)
  83
  84 #define PDE_BIT                         0x08
  85 #define PWD_EN_BIT                      0x04
  86 #define EN_PERCK_BIT                    0x04
  87
  88 #define OMAP1510_DEEP_SLEEP_REQUEST     0x0ec7
  89 #define OMAP1510_BIG_SLEEP_REQUEST      0x0cc5
  90 #define OMAP1510_IDLE_LOOP_REQUEST      0x0c00
  91 #define OMAP1510_IDLE_CLOCK_DOMAINS     0x2
  92
  93 /* Both big sleep and deep sleep use same values. Difference is in ULPD. */
  94 #define OMAP1610_IDLECT1_SLEEP_VAL      0x13c7
  95 #define OMAP1610_IDLECT2_SLEEP_VAL      0x09c7
  96 #define OMAP1610_IDLECT3_VAL            0x3f
  97 #define OMAP1610_IDLECT3_SLEEP_ORMASK   0x2c
  98 #define OMAP1610_IDLECT3                0xfffece24
  99 #define OMAP1610_IDLE_LOOP_REQUEST      0x0400
 100
 101 #define OMAP7XX_IDLECT1_SLEEP_VAL       0x16c7
 102 #define OMAP7XX_IDLECT2_SLEEP_VAL       0x09c7
 103 #define OMAP7XX_IDLECT3_VAL             0x3f
 104 #define OMAP7XX_IDLECT3         0xfffece24
 105 #define OMAP7XX_IDLE_LOOP_REQUEST       0x0C00
 106
 107 #if     !defined(CONFIG_ARCH_OMAP730) && \
 108         !defined(CONFIG_ARCH_OMAP850) && \
 109         !defined(CONFIG_ARCH_OMAP15XX) && \
 110         !defined(CONFIG_ARCH_OMAP16XX)
 111 #warning "Power management for this processor not implemented yet"
 112 #endif
 113
 114 #ifndef __ASSEMBLER__
 115
 116 #include <linux/clk.h>
 117
 118 extern struct kset power_subsys;
 119
 120 extern void prevent_idle_sleep(void);
 121 extern void allow_idle_sleep(void);
 122
 123 extern void omap1_pm_idle(void);
 124 extern void omap1_pm_suspend(void);
 125
 126 extern void omap7xx_cpu_suspend(unsigned short, unsigned short);
 127 extern void omap1510_cpu_suspend(unsigned short, unsigned short);
 128 extern void omap1610_cpu_suspend(unsigned short, unsigned short);
 129 extern void omap7xx_idle_loop_suspend(void);
 130 extern void omap1510_idle_loop_suspend(void);
 131 extern void omap1610_idle_loop_suspend(void);
 132
 133 extern unsigned int omap7xx_cpu_suspend_sz;
 134 extern unsigned int omap1510_cpu_suspend_sz;
 135 extern unsigned int omap1610_cpu_suspend_sz;
 136 extern unsigned int omap7xx_idle_loop_suspend_sz;
 137 extern unsigned int omap1510_idle_loop_suspend_sz;
 138 extern unsigned int omap1610_idle_loop_suspend_sz;
 139
 140 #ifdef CONFIG_OMAP_SERIAL_WAKE
 141 extern void omap_serial_wake_trigger(int enable);
 142 #else
 143 #define omap_serial_wakeup_init()       {}
 144 #define omap_serial_wake_trigger(x)     {}
 145 #endif  /* CONFIG_OMAP_SERIAL_WAKE */
 146
 147 #define ARM_SAVE(x) arm_sleep_save[ARM_SLEEP_SAVE_##x] = omap_readl(x)
 148 #define ARM_RESTORE(x) omap_writel((arm_sleep_save[ARM_SLEEP_SAVE_##x]), (x))
 149 #define ARM_SHOW(x) arm_sleep_save[ARM_SLEEP_SAVE_##x]
 150
 151 #define DSP_SAVE(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x] = __raw_readw(x)
 152 #define DSP_RESTORE(x) __raw_writew((dsp_sleep_save[DSP_SLEEP_SAVE_##x]), (x))
 153 #define DSP_SHOW(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x]
 154
 155 #define ULPD_SAVE(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x] = omap_readw(x)
 156 #define ULPD_RESTORE(x) omap_writew((ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]), (x))
 157 #define ULPD_SHOW(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]
 158
 159 #define MPUI7XX_SAVE(x) mpui7xx_sleep_save[MPUI7XX_SLEEP_SAVE_##x] = omap_readl(x)
 160 #define MPUI7XX_RESTORE(x) omap_writel((mpui7xx_sleep_save[MPUI7XX_SLEEP_SAVE_##x]), (x))
 161 #define MPUI7XX_SHOW(x) mpui7xx_sleep_save[MPUI7XX_SLEEP_SAVE_##x]
 162
 163 #define MPUI1510_SAVE(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x] = omap_readl(x)
 164 #define MPUI1510_RESTORE(x) omap_writel((mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]), (x))
 165 #define MPUI1510_SHOW(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]
 166
 167 #define MPUI1610_SAVE(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x] = omap_readl(x)
 168 #define MPUI1610_RESTORE(x) omap_writel((mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]), (x))
 169 #define MPUI1610_SHOW(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]
 170
 171 /*
 172  * List of global OMAP registers to preserve.
 173  * More ones like CP and general purpose register values are preserved
 174  * with the stack pointer in sleep.S.
 175  */
 176
 177 enum arm_save_state {
 178         ARM_SLEEP_SAVE_START = 0,
 179         /*
 180          * MPU control registers 32 bits
 181          */
 182         ARM_SLEEP_SAVE_ARM_CKCTL,
 183         ARM_SLEEP_SAVE_ARM_IDLECT1,
 184         ARM_SLEEP_SAVE_ARM_IDLECT2,
 185         ARM_SLEEP_SAVE_ARM_IDLECT3,
 186         ARM_SLEEP_SAVE_ARM_EWUPCT,
 187         ARM_SLEEP_SAVE_ARM_RSTCT1,
 188         ARM_SLEEP_SAVE_ARM_RSTCT2,
 189         ARM_SLEEP_SAVE_ARM_SYSST,
 190         ARM_SLEEP_SAVE_SIZE
 191 };
 192
 193 enum dsp_save_state {
 194         DSP_SLEEP_SAVE_START = 0,
 195         /*
 196          * DSP registers 16 bits
 197          */
 198         DSP_SLEEP_SAVE_DSP_IDLECT2,
 199         DSP_SLEEP_SAVE_SIZE
 200 };
 201
 202 enum ulpd_save_state {
 203         ULPD_SLEEP_SAVE_START = 0,
 204         /*
 205          * ULPD registers 16 bits
 206          */
 207         ULPD_SLEEP_SAVE_ULPD_IT_STATUS,
 208         ULPD_SLEEP_SAVE_ULPD_CLOCK_CTRL,
 209         ULPD_SLEEP_SAVE_ULPD_SOFT_REQ,
 210         ULPD_SLEEP_SAVE_ULPD_STATUS_REQ,
 211         ULPD_SLEEP_SAVE_ULPD_DPLL_CTRL,
 212         ULPD_SLEEP_SAVE_ULPD_POWER_CTRL,
 213         ULPD_SLEEP_SAVE_SIZE
 214 };
 215
 216 enum mpui1510_save_state {
 217         MPUI1510_SLEEP_SAVE_START = 0,
 218         /*
 219          * MPUI registers 32 bits
 220          */
 221         MPUI1510_SLEEP_SAVE_MPUI_CTRL,
 222         MPUI1510_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 223         MPUI1510_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 224         MPUI1510_SLEEP_SAVE_MPUI_DSP_STATUS,
 225         MPUI1510_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 226         MPUI1510_SLEEP_SAVE_EMIFS_CONFIG,
 227         MPUI1510_SLEEP_SAVE_OMAP_IH1_MIR,
 228         MPUI1510_SLEEP_SAVE_OMAP_IH2_MIR,
 229 #if defined(CONFIG_ARCH_OMAP15XX)
 230         MPUI1510_SLEEP_SAVE_SIZE
 231 #else
 232         MPUI1510_SLEEP_SAVE_SIZE = 0
 233 #endif
 234 };
 235
 236 enum mpui7xx_save_state {
 237         MPUI7XX_SLEEP_SAVE_START = 0,
 238         /*
 239          * MPUI registers 32 bits
 240          */
 241         MPUI7XX_SLEEP_SAVE_MPUI_CTRL,
 242         MPUI7XX_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 243         MPUI7XX_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 244         MPUI7XX_SLEEP_SAVE_MPUI_DSP_STATUS,
 245         MPUI7XX_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 246         MPUI7XX_SLEEP_SAVE_EMIFS_CONFIG,
 247         MPUI7XX_SLEEP_SAVE_OMAP_IH1_MIR,
 248         MPUI7XX_SLEEP_SAVE_OMAP_IH2_0_MIR,
 249         MPUI7XX_SLEEP_SAVE_OMAP_IH2_1_MIR,
 250 #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
 251         MPUI7XX_SLEEP_SAVE_SIZE
 252 #else
 253         MPUI7XX_SLEEP_SAVE_SIZE = 0
 254 #endif
 255 };
 256
 257 enum mpui1610_save_state {
 258         MPUI1610_SLEEP_SAVE_START = 0,
 259         /*
 260          * MPUI registers 32 bits
 261          */
 262         MPUI1610_SLEEP_SAVE_MPUI_CTRL,
 263         MPUI1610_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 264         MPUI1610_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 265         MPUI1610_SLEEP_SAVE_MPUI_DSP_STATUS,
 266         MPUI1610_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 267         MPUI1610_SLEEP_SAVE_EMIFS_CONFIG,
 268         MPUI1610_SLEEP_SAVE_OMAP_IH1_MIR,
 269         MPUI1610_SLEEP_SAVE_OMAP_IH2_0_MIR,
 270         MPUI1610_SLEEP_SAVE_OMAP_IH2_1_MIR,
 271         MPUI1610_SLEEP_SAVE_OMAP_IH2_2_MIR,
 272         MPUI1610_SLEEP_SAVE_OMAP_IH2_3_MIR,
 273 #if defined(CONFIG_ARCH_OMAP16XX)
 274         MPUI1610_SLEEP_SAVE_SIZE
 275 #else
 276         MPUI1610_SLEEP_SAVE_SIZE = 0
 277 #endif
 278 };
 279
 280 #endif /* ASSEMBLER */
 281 #endif /* __ASM_ARCH_OMAP_PM_H */