2 * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #ifndef __MACH_TEGRA_SLEEP_H
18 #define __MACH_TEGRA_SLEEP_H
22 #define TEGRA_ARM_PERIF_VIRT (TEGRA_ARM_PERIF_BASE - IO_CPU_PHYS \
24 #define TEGRA_FLOW_CTRL_VIRT (TEGRA_FLOW_CTRL_BASE - IO_PPSB_PHYS \
26 #define TEGRA_CLK_RESET_VIRT (TEGRA_CLK_RESET_BASE - IO_PPSB_PHYS \
28 #define TEGRA_PMC_VIRT (TEGRA_PMC_BASE - IO_APB_PHYS + IO_APB_VIRT)
30 /* PMC_SCRATCH37-39 and 41 are used for tegra_pen_lock and idle */
31 #define PMC_SCRATCH37 0x130
32 #define PMC_SCRATCH38 0x134
33 #define PMC_SCRATCH39 0x138
34 #define PMC_SCRATCH41 0x140
36 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
37 #define CPU_RESETTABLE 2
38 #define CPU_RESETTABLE_SOON 1
39 #define CPU_NOT_RESETTABLE 0
43 /* returns the offset of the flow controller halt register for a cpu */
44 .macro cpu_to_halt_reg rd, rcpu
47 movne \rd, \rd, lsl #3
52 /* returns the offset of the flow controller csr register for a cpu */
53 .macro cpu_to_csr_reg rd, rcpu
56 movne \rd, \rd, lsl #3
61 /* returns the ID of the current processor */
63 mrc p15, 0, \rd, c0, c0, 5
67 /* loads a 32-bit value into a register without a data access */
68 .macro mov32, reg, val
69 movw \reg, #:lower16:\val
70 movt \reg, #:upper16:\val
73 /* Macro to exit SMP coherency. */
74 .macro exit_smp, tmp1, tmp2
75 mrc p15, 0, \tmp1, c1, c0, 1 @ ACTLR
76 bic \tmp1, \tmp1, #(1<<6) | (1<<0) @ clear ACTLR.SMP | ACTLR.FW
77 mcr p15, 0, \tmp1, c1, c0, 1 @ ACTLR
80 mov \tmp1, \tmp1, lsl #2
82 mov \tmp2, \tmp2, lsl \tmp1
83 mov32 \tmp1, TEGRA_ARM_PERIF_VIRT + 0xC
84 str \tmp2, [\tmp1] @ invalidate SCU tags for CPU
88 /* Macro to resume & re-enable L2 cache */
90 #define L2X0_CTRL_EN 1
93 #ifdef CONFIG_CACHE_L2X0
94 .macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
95 adr \tmp1, \phys_l2x0_saved_regs
97 ldr \tmp2, [\tmp1, #L2X0_R_PHY_BASE]
98 ldr \tmp3, [\tmp2, #L2X0_CTRL]
99 tst \tmp3, #L2X0_CTRL_EN
101 ldr \tmp3, [\tmp1, #L2X0_R_TAG_LATENCY]
102 str \tmp3, [\tmp2, #L2X0_TAG_LATENCY_CTRL]
103 ldr \tmp3, [\tmp1, #L2X0_R_DATA_LATENCY]
104 str \tmp3, [\tmp2, #L2X0_DATA_LATENCY_CTRL]
105 ldr \tmp3, [\tmp1, #L2X0_R_PREFETCH_CTRL]
106 str \tmp3, [\tmp2, #L2X0_PREFETCH_CTRL]
107 ldr \tmp3, [\tmp1, #L2X0_R_PWR_CTRL]
108 str \tmp3, [\tmp2, #L2X0_POWER_CTRL]
109 ldr \tmp3, [\tmp1, #L2X0_R_AUX_CTRL]
110 str \tmp3, [\tmp2, #L2X0_AUX_CTRL]
111 mov \tmp3, #L2X0_CTRL_EN
112 str \tmp3, [\tmp2, #L2X0_CTRL]
115 #else /* CONFIG_CACHE_L2X0 */
116 .macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
118 #endif /* CONFIG_CACHE_L2X0 */
120 void tegra_pen_lock(void);
121 void tegra_pen_unlock(void);
122 void tegra_resume(void);
123 int tegra_sleep_cpu_finish(unsigned long);
124 void tegra_disable_clean_inv_dcache(void);
126 #ifdef CONFIG_HOTPLUG_CPU
127 void tegra20_hotplug_init(void);
128 void tegra30_hotplug_init(void);
130 static inline void tegra20_hotplug_init(void) {}
131 static inline void tegra30_hotplug_init(void) {}
134 void tegra20_cpu_shutdown(int cpu);
135 int tegra20_cpu_is_resettable_soon(void);
136 void tegra20_cpu_clear_resettable(void);
137 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
138 void tegra20_cpu_set_resettable_soon(void);
140 static inline void tegra20_cpu_set_resettable_soon(void) {}
143 int tegra20_sleep_cpu_secondary_finish(unsigned long);
144 void tegra20_tear_down_cpu(void);
145 int tegra30_sleep_cpu_secondary_finish(unsigned long);
146 void tegra30_tear_down_cpu(void);