kernel/arch/arm/mach-tegra/flowctrl.h

   1 /*
   2  * arch/arm/mach-tegra/flowctrl.h
   3  *
   4  * functions and macros to control the flowcontroller
   5  *
   6  * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms and conditions of the GNU General Public License,
  10  * version 2, as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef __MACH_TEGRA_FLOWCTRL_H
  22 #define __MACH_TEGRA_FLOWCTRL_H
  23
  24 #define FLOW_CTRL_HALT_CPU0_EVENTS      0x0
  25 #define FLOW_CTRL_WAITEVENT             (2 << 29)
  26 #define FLOW_CTRL_WAIT_FOR_INTERRUPT    (4 << 29)
  27 #define FLOW_CTRL_JTAG_RESUME           (1 << 28)
  28 #define FLOW_CTRL_SCLK_RESUME           (1 << 27)
  29 #define FLOW_CTRL_HALT_CPU_IRQ          (1 << 10)
  30 #define FLOW_CTRL_HALT_CPU_FIQ          (1 << 8)
  31 #define FLOW_CTRL_HALT_LIC_IRQ          (1 << 11)
  32 #define FLOW_CTRL_HALT_LIC_FIQ          (1 << 10)
  33 #define FLOW_CTRL_HALT_GIC_IRQ          (1 << 9)
  34 #define FLOW_CTRL_HALT_GIC_FIQ          (1 << 8)
  35 #define FLOW_CTRL_CPU0_CSR              0x8
  36 #define FLOW_CTRL_CSR_INTR_FLAG         (1 << 15)
  37 #define FLOW_CTRL_CSR_EVENT_FLAG        (1 << 14)
  38 #define FLOW_CTRL_CSR_ENABLE_EXT_CRAIL  (1 << 13)
  39 #define FLOW_CTRL_CSR_ENABLE_EXT_NCPU   (1 << 12)
  40 #define FLOW_CTRL_CSR_ENABLE_EXT_MASK ( \
  41                 FLOW_CTRL_CSR_ENABLE_EXT_NCPU | \
  42                 FLOW_CTRL_CSR_ENABLE_EXT_CRAIL)
  43 #define FLOW_CTRL_CSR_ENABLE            (1 << 0)
  44 #define FLOW_CTRL_HALT_CPU1_EVENTS      0x14
  45 #define FLOW_CTRL_CPU1_CSR              0x18
  46
  47 #define TEGRA20_FLOW_CTRL_CSR_WFE_CPU0          (1 << 4)
  48 #define TEGRA20_FLOW_CTRL_CSR_WFE_BITMAP        (3 << 4)
  49 #define TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP        0
  50
  51 #define TEGRA30_FLOW_CTRL_CSR_WFI_CPU0          (1 << 8)
  52 #define TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP        (0xF << 4)
  53 #define TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP        (0xF << 8)
  54
  55 #ifndef __ASSEMBLY__
  56 u32 flowctrl_read_cpu_csr(unsigned int cpuid);
  57 void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value);
  58 void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value);
  59
  60 void flowctrl_cpu_suspend_enter(unsigned int cpuid);
  61 void flowctrl_cpu_suspend_exit(unsigned int cpuid);
  62
  63 void tegra_flowctrl_init(void);
  64 #endif
  65
  66 #endif