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 #include <linux/soc/ti/omap1-io.h>
  38
  39 /*
  40  * ----------------------------------------------------------------------------
  41  * Register and offset definitions to be used in PM assembler code
  42  * ----------------------------------------------------------------------------
  43  */
  44 #define CLKGEN_REG_ASM_BASE             OMAP1_IO_ADDRESS(0xfffece00)
  45 #define ARM_IDLECT1_ASM_OFFSET          0x04
  46 #define ARM_IDLECT2_ASM_OFFSET          0x08
  47
  48 #define TCMIF_ASM_BASE                  OMAP1_IO_ADDRESS(0xfffecc00)
  49 #define EMIFS_CONFIG_ASM_OFFSET         0x0c
  50 #define EMIFF_SDRAM_CONFIG_ASM_OFFSET   0x20
  51
  52 /*
  53  * ----------------------------------------------------------------------------
  54  * Power management bitmasks
  55  * ----------------------------------------------------------------------------
  56  */
  57 #define IDLE_WAIT_CYCLES                0x00000fff
  58 #define PERIPHERAL_ENABLE               0x2
  59
  60 #define SELF_REFRESH_MODE               0x0c000001
  61 #define IDLE_EMIFS_REQUEST              0xc
  62 #define MODEM_32K_EN                    0x1
  63 #define PER_EN                          0x1
  64
  65 #define CPU_SUSPEND_SIZE                200
  66 #define ULPD_LOW_PWR_EN                 0x0001
  67 #define ULPD_DEEP_SLEEP_TRANSITION_EN   0x0010
  68 #define ULPD_SETUP_ANALOG_CELL_3_VAL    0
  69 #define ULPD_POWER_CTRL_REG_VAL         0x0219
  70
  71 #define DSP_IDLE_DELAY                  10
  72 #define DSP_IDLE                        0x0040
  73 #define DSP_RST                         0x0004
  74 #define DSP_ENABLE                      0x0002
  75 #define SUFFICIENT_DSP_RESET_TIME       1000
  76 #define DEFAULT_MPUI_CONFIG             0x05cf
  77 #define ENABLE_XORCLK                   0x2
  78 #define DSP_CLOCK_ENABLE                0x2000
  79 #define DSP_IDLE_MODE                   0x2
  80 #define TC_IDLE_REQUEST                 (0x0000000c)
  81
  82 #define IRQ_LEVEL2                      (1<<0)
  83 #define IRQ_KEYBOARD                    (1<<1)
  84 #define IRQ_UART2                       (1<<15)
  85
  86 #define PDE_BIT                         0x08
  87 #define PWD_EN_BIT                      0x04
  88 #define EN_PERCK_BIT                    0x04
  89
  90 #define OMAP1510_DEEP_SLEEP_REQUEST     0x0ec7
  91 #define OMAP1510_BIG_SLEEP_REQUEST      0x0cc5
  92 #define OMAP1510_IDLE_LOOP_REQUEST      0x0c00
  93 #define OMAP1510_IDLE_CLOCK_DOMAINS     0x2
  94
  95 /* Both big sleep and deep sleep use same values. Difference is in ULPD. */
  96 #define OMAP1610_IDLECT1_SLEEP_VAL      0x13c7
  97 #define OMAP1610_IDLECT2_SLEEP_VAL      0x09c7
  98 #define OMAP1610_IDLECT3_VAL            0x3f
  99 #define OMAP1610_IDLECT3_SLEEP_ORMASK   0x2c
 100 #define OMAP1610_IDLECT3                0xfffece24
 101 #define OMAP1610_IDLE_LOOP_REQUEST      0x0400
 102
 103 #ifndef __ASSEMBLER__
 104
 105 #include <linux/clk.h>
 106
 107 extern struct kset power_subsys;
 108
 109 extern void prevent_idle_sleep(void);
 110 extern void allow_idle_sleep(void);
 111
 112 extern void omap1_pm_idle(void);
 113 extern void omap1_pm_suspend(void);
 114
 115 extern void omap1510_cpu_suspend(unsigned long, unsigned long);
 116 extern void omap1610_cpu_suspend(unsigned long, unsigned long);
 117
 118 extern unsigned int omap1510_cpu_suspend_sz;
 119 extern unsigned int omap1610_cpu_suspend_sz;
 120
 121 #ifdef CONFIG_OMAP_SERIAL_WAKE
 122 extern void omap_serial_wake_trigger(int enable);
 123 #else
 124 #define omap_serial_wakeup_init()       {}
 125 #define omap_serial_wake_trigger(x)     {}
 126 #endif  /* CONFIG_OMAP_SERIAL_WAKE */
 127
 128 #define ARM_SAVE(x) arm_sleep_save[ARM_SLEEP_SAVE_##x] = omap_readl(x)
 129 #define ARM_RESTORE(x) omap_writel((arm_sleep_save[ARM_SLEEP_SAVE_##x]), (x))
 130 #define ARM_SHOW(x) arm_sleep_save[ARM_SLEEP_SAVE_##x]
 131
 132 #define DSP_SAVE(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x] = __raw_readw(x)
 133 #define DSP_RESTORE(x) __raw_writew((dsp_sleep_save[DSP_SLEEP_SAVE_##x]), (x))
 134 #define DSP_SHOW(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x]
 135
 136 #define ULPD_SAVE(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x] = omap_readw(x)
 137 #define ULPD_RESTORE(x) omap_writew((ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]), (x))
 138 #define ULPD_SHOW(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]
 139
 140 #define MPUI1510_SAVE(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x] = omap_readl(x)
 141 #define MPUI1510_RESTORE(x) omap_writel((mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]), (x))
 142 #define MPUI1510_SHOW(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]
 143
 144 #define MPUI1610_SAVE(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x] = omap_readl(x)
 145 #define MPUI1610_RESTORE(x) omap_writel((mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]), (x))
 146 #define MPUI1610_SHOW(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]
 147
 148 /*
 149  * List of global OMAP registers to preserve.
 150  * More ones like CP and general purpose register values are preserved
 151  * with the stack pointer in sleep.S.
 152  */
 153
 154 enum arm_save_state {
 155         ARM_SLEEP_SAVE_START = 0,
 156         /*
 157          * MPU control registers 32 bits
 158          */
 159         ARM_SLEEP_SAVE_ARM_CKCTL,
 160         ARM_SLEEP_SAVE_ARM_IDLECT1,
 161         ARM_SLEEP_SAVE_ARM_IDLECT2,
 162         ARM_SLEEP_SAVE_ARM_IDLECT3,
 163         ARM_SLEEP_SAVE_ARM_EWUPCT,
 164         ARM_SLEEP_SAVE_ARM_RSTCT1,
 165         ARM_SLEEP_SAVE_ARM_RSTCT2,
 166         ARM_SLEEP_SAVE_ARM_SYSST,
 167         ARM_SLEEP_SAVE_SIZE
 168 };
 169
 170 enum dsp_save_state {
 171         DSP_SLEEP_SAVE_START = 0,
 172         /*
 173          * DSP registers 16 bits
 174          */
 175         DSP_SLEEP_SAVE_DSP_IDLECT2,
 176         DSP_SLEEP_SAVE_SIZE
 177 };
 178
 179 enum ulpd_save_state {
 180         ULPD_SLEEP_SAVE_START = 0,
 181         /*
 182          * ULPD registers 16 bits
 183          */
 184         ULPD_SLEEP_SAVE_ULPD_IT_STATUS,
 185         ULPD_SLEEP_SAVE_ULPD_CLOCK_CTRL,
 186         ULPD_SLEEP_SAVE_ULPD_SOFT_REQ,
 187         ULPD_SLEEP_SAVE_ULPD_STATUS_REQ,
 188         ULPD_SLEEP_SAVE_ULPD_DPLL_CTRL,
 189         ULPD_SLEEP_SAVE_ULPD_POWER_CTRL,
 190         ULPD_SLEEP_SAVE_SIZE
 191 };
 192
 193 enum mpui1510_save_state {
 194         MPUI1510_SLEEP_SAVE_START = 0,
 195         /*
 196          * MPUI registers 32 bits
 197          */
 198         MPUI1510_SLEEP_SAVE_MPUI_CTRL,
 199         MPUI1510_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 200         MPUI1510_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 201         MPUI1510_SLEEP_SAVE_MPUI_DSP_STATUS,
 202         MPUI1510_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 203         MPUI1510_SLEEP_SAVE_EMIFS_CONFIG,
 204         MPUI1510_SLEEP_SAVE_OMAP_IH1_MIR,
 205         MPUI1510_SLEEP_SAVE_OMAP_IH2_MIR,
 206 #if defined(CONFIG_ARCH_OMAP15XX)
 207         MPUI1510_SLEEP_SAVE_SIZE
 208 #else
 209         MPUI1510_SLEEP_SAVE_SIZE = 0
 210 #endif
 211 };
 212
 213 enum mpui1610_save_state {
 214         MPUI1610_SLEEP_SAVE_START = 0,
 215         /*
 216          * MPUI registers 32 bits
 217          */
 218         MPUI1610_SLEEP_SAVE_MPUI_CTRL,
 219         MPUI1610_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
 220         MPUI1610_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
 221         MPUI1610_SLEEP_SAVE_MPUI_DSP_STATUS,
 222         MPUI1610_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
 223         MPUI1610_SLEEP_SAVE_EMIFS_CONFIG,
 224         MPUI1610_SLEEP_SAVE_OMAP_IH1_MIR,
 225         MPUI1610_SLEEP_SAVE_OMAP_IH2_0_MIR,
 226         MPUI1610_SLEEP_SAVE_OMAP_IH2_1_MIR,
 227         MPUI1610_SLEEP_SAVE_OMAP_IH2_2_MIR,
 228         MPUI1610_SLEEP_SAVE_OMAP_IH2_3_MIR,
 229 #if defined(CONFIG_ARCH_OMAP16XX)
 230         MPUI1610_SLEEP_SAVE_SIZE
 231 #else
 232         MPUI1610_SLEEP_SAVE_SIZE = 0
 233 #endif
 234 };
 235
 236 #endif /* ASSEMBLER */
 237 #endif /* __ASM_ARCH_OMAP_PM_H */