2 * arch/arm/mach-tegra/flowctrl.h
4 * functions and macros to control the flowcontroller
6 * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
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.
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
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/>.
21 #ifndef __MACH_TEGRA_FLOWCTRL_H
22 #define __MACH_TEGRA_FLOWCTRL_H
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
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
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)
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
);
60 void flowctrl_cpu_suspend_enter(unsigned int cpuid
);
61 void flowctrl_cpu_suspend_exit(unsigned int cpuid
);
63 void tegra_flowctrl_init(void);
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