arch/arm/plat-omap/include/mach/pm.h

   1 /*
   2  * arch/arm/plat-omap/include/mach/pm.h
   3  *
   4  * Header file for OMAP 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 __ASM_ARCH_OMAP_PM_H
  35 #define __ASM_ARCH_OMAP_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             IO_ADDRESS(0xfffece00)
  43 #define ARM_IDLECT1_ASM_OFFSET          0x04
  44 #define ARM_IDLECT2_ASM_OFFSET          0x08
  45
  46 #define TCMIF_ASM_BASE                  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 OMAP730_IDLECT1_SLEEP_VAL       0x16c7
 102 #define OMAP730_IDLECT2_SLEEP_VAL       0x09c7
 103 #define OMAP730_IDLECT3_VAL             0x3f
 104 #define OMAP730_IDLECT3         0xfffece24
 105 #define OMAP730_IDLE_LOOP_REQUEST       0x0C00
 106
 107 #if     !defined(CONFIG_ARCH_OMAP730) && \
 108         !defined(CONFIG_ARCH_OMAP15XX) && \
 109         !defined(CONFIG_ARCH_OMAP16XX) && \
 110         !defined(CONFIG_ARCH_OMAP24XX) && \
 111         !defined(CONFIG_ARCH_OMAP34XX)
 112 #warning "Power management for this processor not implemented yet"
 113 #endif
 114
 115 #ifndef __ASSEMBLER__
 116
 117 #include <linux/clk.h>
 118
 119 extern struct kset power_subsys;
 120
 121 extern void prevent_idle_sleep(void);
 122 extern void allow_idle_sleep(void);
 123
 124 /**
 125  * clk_deny_idle - Prevents the clock from being idled during MPU idle
 126  * @clk: clock signal handle
 127  */
 128 void clk_deny_idle(struct clk *clk);
 129
 130 /**
 131  * clk_allow_idle - Counters previous clk_deny_idle
 132  * @clk: clock signal handle
 133  */
 134 void clk_allow_idle(struct clk *clk);
 135
 136 extern void omap_pm_idle(void);
 137 extern void omap_pm_suspend(void);
 138 #ifdef CONFIG_PM
 139 extern void omap2_block_sleep(void);
 140 extern void omap2_allow_sleep(void);
 141 #else
 142 static inline void omap2_block_sleep(void) { }
 143 static inline void omap2_allow_sleep(void) { }
 144 #endif
 145 extern void omap730_cpu_suspend(unsigned short, unsigned short);
 146 extern void omap1510_cpu_suspend(unsigned short, unsigned short);
 147 extern void omap1610_cpu_suspend(unsigned short, unsigned short);
 148 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
 149                                         void __iomem *sdrc_power);
 150 extern void omap34xx_cpu_suspend(u32 *addr, int save_state);
 151 extern void omap730_idle_loop_suspend(void);
 152 extern void omap1510_idle_loop_suspend(void);
 153 extern void omap1610_idle_loop_suspend(void);
 154 extern void omap24xx_idle_loop_suspend(void);
 155
 156 extern unsigned int omap730_cpu_suspend_sz;
 157 extern unsigned int omap1510_cpu_suspend_sz;
 158 extern unsigned int omap1610_cpu_suspend_sz;
 159 extern unsigned int omap24xx_cpu_suspend_sz;
 160 extern unsigned int omap34xx_cpu_suspend_sz;
 161 extern unsigned int omap730_idle_loop_suspend_sz;
 162 extern unsigned int omap1510_idle_loop_suspend_sz;
 163 extern unsigned int omap1610_idle_loop_suspend_sz;
 164 extern unsigned int omap24xx_idle_loop_suspend_sz;
 165 extern unsigned int omap34xx_suspend_sz;
 166
 167 #ifdef CONFIG_OMAP_SERIAL_WAKE
 168 extern void omap_serial_wake_trigger(int enable);
 169 #else
 170 #define omap_serial_wakeup_init()       {}
 171 #define omap_serial_wake_trigger(x)     {}
 172 #endif  /* CONFIG_OMAP_SERIAL_WAKE */
 173
 174 #define ARM_SAVE(x) arm_sleep_save[ARM_SLEEP_SAVE_##x] = omap_readl(x)
 175 #define ARM_RESTORE(x) omap_writel((arm_sleep_save[ARM_SLEEP_SAVE_##x]), (x))
 176 #define ARM_SHOW(x) arm_sleep_save[ARM_SLEEP_SAVE_##x]
 177
 178 #define DSP_SAVE(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x] = __raw_readw(x)
 179 #define DSP_RESTORE(x) __raw_writew((dsp_sleep_save[DSP_SLEEP_SAVE_##x]), (x))
 180 #define DSP_SHOW(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x]
 181
 182 #define ULPD_SAVE(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x] = omap_readw(x)
 183 #define ULPD_RESTORE(x) omap_writew((ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]), (x))
 184 #define ULPD_SHOW(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]
 185
 186 #define MPUI730_SAVE(x) mpui730_sleep_save[MPUI730_SLEEP_SAVE_##x] = omap_readl(x)
 187 #define MPUI730_RESTORE(x) omap_writel((mpui730_sleep_save[MPUI730_SLEEP_SAVE_##x]), (x))
 188 #define MPUI730_SHOW(x) mpui730_sleep_save[MPUI730_SLEEP_SAVE_##x]
 189
 190 #define MPUI1510_SAVE(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x] = omap_readl(x)
 191 #define MPUI1510_RESTORE(x) omap_writel((mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]), (x))
 192 #define MPUI1510_SHOW(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]
 193
 194 #define MPUI1610_SAVE(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x] = omap_readl(x)
 195 #define MPUI1610_RESTORE(x) omap_writel((mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]), (x))
 196 #define MPUI1610_SHOW(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]
 197
 198 /*
 199  * List of global OMAP registers to preserve.
 200  * More ones like CP and general purpose register values are preserved
 201  * with the stack pointer in sleep.S.
 202  */
 203
 204 enum arm_save_state {
 205         ARM_SLEEP_SAVE_START = 0,
 206         /*
 207          * MPU control registers 32 bits
 208          */
 209         ARM_SLEEP_SAVE_ARM_CKCTL,
 210         ARM_SLEEP_SAVE_ARM_IDLECT1,
 211         ARM_SLEEP_SAVE_ARM_IDLECT2,
 212         ARM_SLEEP_SAVE_ARM_IDLECT3,
 213         ARM_SLEEP_SAVE_ARM_EWUPCT,
 214         ARM_SLEEP_SAVE_ARM_RSTCT1,
 215         ARM_SLEEP_SAVE_ARM_RSTCT2,
 216         ARM_SLEEP_SAVE_ARM_SYSST,
 217         ARM_SLEEP_SAVE_SIZE
 218 };
 219
 220 enum dsp_save_state {
 221         DSP_SLEEP_SAVE_START = 0,
 222         /*
 223          * DSP registers 16 bits
 224          */
 225         DSP_SLEEP_SAVE_DSP_IDLECT2,
 226         DSP_SLEEP_SAVE_SIZE
 227 };
 228
 229 enum ulpd_save_state {
 230         ULPD_SLEEP_SAVE_START = 0,
 231         /*
 232          * ULPD registers 16 bits
 233          */
 234         ULPD_SLEEP_SAVE_ULPD_IT_STATUS,
 235         ULPD_SLEEP_SAVE_ULPD_CLOCK_CTRL,
 236         ULPD_SLEEP_SAVE_ULPD_SOFT_REQ,
 237         ULPD_SLEEP_SAVE_ULPD_STATUS_REQ,
 238         ULPD_SLEEP_SAVE_ULPD_DPLL_CTRL,
 239         ULPD_SLEEP_SAVE_ULPD_POWER_CTRL,
 240         ULPD_SLEEP_SAVE_SIZE
 241 };
 242
 243 enum mpui1510_save_state {
 244         MPUI1510_SLEEP_SAVE_START = 0,
 245         /*
 246          * MPUI registers 32 bits
 247          */
 248         MPUI1510_SLEEP_SAVE_MPUI_CTRL,
 249         MPUI1510_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 250         MPUI1510_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 251         MPUI1510_SLEEP_SAVE_MPUI_DSP_STATUS,
 252         MPUI1510_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 253         MPUI1510_SLEEP_SAVE_EMIFS_CONFIG,
 254         MPUI1510_SLEEP_SAVE_OMAP_IH1_MIR,
 255         MPUI1510_SLEEP_SAVE_OMAP_IH2_MIR,
 256 #if defined(CONFIG_ARCH_OMAP15XX)
 257         MPUI1510_SLEEP_SAVE_SIZE
 258 #else
 259         MPUI1510_SLEEP_SAVE_SIZE = 0
 260 #endif
 261 };
 262
 263 enum mpui730_save_state {
 264         MPUI730_SLEEP_SAVE_START = 0,
 265         /*
 266          * MPUI registers 32 bits
 267          */
 268         MPUI730_SLEEP_SAVE_MPUI_CTRL,
 269         MPUI730_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 270         MPUI730_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 271         MPUI730_SLEEP_SAVE_MPUI_DSP_STATUS,
 272         MPUI730_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 273         MPUI730_SLEEP_SAVE_EMIFS_CONFIG,
 274         MPUI730_SLEEP_SAVE_OMAP_IH1_MIR,
 275         MPUI730_SLEEP_SAVE_OMAP_IH2_0_MIR,
 276         MPUI730_SLEEP_SAVE_OMAP_IH2_1_MIR,
 277 #if defined(CONFIG_ARCH_OMAP730)
 278         MPUI730_SLEEP_SAVE_SIZE
 279 #else
 280         MPUI730_SLEEP_SAVE_SIZE = 0
 281 #endif
 282 };
 283
 284 enum mpui1610_save_state {
 285         MPUI1610_SLEEP_SAVE_START = 0,
 286         /*
 287          * MPUI registers 32 bits
 288          */
 289         MPUI1610_SLEEP_SAVE_MPUI_CTRL,
 290         MPUI1610_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 291         MPUI1610_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 292         MPUI1610_SLEEP_SAVE_MPUI_DSP_STATUS,
 293         MPUI1610_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 294         MPUI1610_SLEEP_SAVE_EMIFS_CONFIG,
 295         MPUI1610_SLEEP_SAVE_OMAP_IH1_MIR,
 296         MPUI1610_SLEEP_SAVE_OMAP_IH2_0_MIR,
 297         MPUI1610_SLEEP_SAVE_OMAP_IH2_1_MIR,
 298         MPUI1610_SLEEP_SAVE_OMAP_IH2_2_MIR,
 299         MPUI1610_SLEEP_SAVE_OMAP_IH2_3_MIR,
 300 #if defined(CONFIG_ARCH_OMAP16XX)
 301         MPUI1610_SLEEP_SAVE_SIZE
 302 #else
 303         MPUI1610_SLEEP_SAVE_SIZE = 0
 304 #endif
 305 };
 306
 307 #endif /* ASSEMBLER */
 308 #endif /* __ASM_ARCH_OMAP_PM_H */