obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks_data.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_speedo.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o
-obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += sleep-t20.o
+obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += sleep-tegra20.o
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks.o
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks_data.o
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_speedo.o
-obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += sleep-t30.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
obj-$(CONFIG_SMP) += reset.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
+++ /dev/null
-/*
- * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
- * Copyright (c) 2011, Google, Inc.
- *
- * Author: Colin Cross <ccross@android.com>
- * Gary King <gking@nvidia.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/linkage.h>
-
-#include <asm/assembler.h>
-
-#include "sleep.h"
-#include "flowctrl.h"
-
-#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP)
-/*
- * tegra20_hotplug_shutdown(void)
- *
- * puts the current cpu in reset
- * should never return
- */
-ENTRY(tegra20_hotplug_shutdown)
- /* Turn off SMP coherency */
- exit_smp r4, r5
-
- /* Put this CPU down */
- cpu_id r0
- bl tegra20_cpu_shutdown
- mov pc, lr @ should never get here
-ENDPROC(tegra20_hotplug_shutdown)
-
-/*
- * tegra20_cpu_shutdown(int cpu)
- *
- * r0 is cpu to reset
- *
- * puts the specified CPU in wait-for-event mode on the flow controller
- * and puts the CPU in reset
- * can be called on the current cpu or another cpu
- * if called on the current cpu, does not return
- * MUST NOT BE CALLED FOR CPU 0.
- *
- * corrupts r0-r3, r12
- */
-ENTRY(tegra20_cpu_shutdown)
- cmp r0, #0
- moveq pc, lr @ must not be called for CPU 0
-
- cpu_to_halt_reg r1, r0
- ldr r3, =TEGRA_FLOW_CTRL_VIRT
- mov r2, #FLOW_CTRL_WAITEVENT | FLOW_CTRL_JTAG_RESUME
- str r2, [r3, r1] @ put flow controller in wait event mode
- ldr r2, [r3, r1]
- isb
- dsb
- movw r1, 0x1011
- mov r1, r1, lsl r0
- ldr r3, =TEGRA_CLK_RESET_VIRT
- str r1, [r3, #0x340] @ put slave CPU in reset
- isb
- dsb
- cpu_id r3
- cmp r3, r0
- beq .
- mov pc, lr
-ENDPROC(tegra20_cpu_shutdown)
-#endif
+++ /dev/null
-/*
- * Copyright (c) 2012, NVIDIA Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/linkage.h>
-
-#include <asm/assembler.h>
-
-#include "sleep.h"
-#include "flowctrl.h"
-
-#define TEGRA30_POWER_HOTPLUG_SHUTDOWN (1 << 27) /* Hotplug shutdown */
-
-#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP)
-/*
- * tegra30_hotplug_shutdown(void)
- *
- * Powergates the current CPU.
- * Should never return.
- */
-ENTRY(tegra30_hotplug_shutdown)
- /* Turn off SMP coherency */
- exit_smp r4, r5
-
- /* Powergate this CPU */
- mov r0, #TEGRA30_POWER_HOTPLUG_SHUTDOWN
- bl tegra30_cpu_shutdown
- mov pc, lr @ should never get here
-ENDPROC(tegra30_hotplug_shutdown)
-
-/*
- * tegra30_cpu_shutdown(unsigned long flags)
- *
- * Puts the current CPU in wait-for-event mode on the flow controller
- * and powergates it -- flags (in R0) indicate the request type.
- * Must never be called for CPU 0.
- *
- * corrupts r0-r4, r12
- */
-ENTRY(tegra30_cpu_shutdown)
- cpu_id r3
- cmp r3, #0
- moveq pc, lr @ Must never be called for CPU 0
-
- ldr r12, =TEGRA_FLOW_CTRL_VIRT
- cpu_to_csr_reg r1, r3
- add r1, r1, r12 @ virtual CSR address for this CPU
- cpu_to_halt_reg r2, r3
- add r2, r2, r12 @ virtual HALT_EVENTS address for this CPU
-
- /*
- * Clear this CPU's "event" and "interrupt" flags and power gate
- * it when halting but not before it is in the "WFE" state.
- */
- movw r12, \
- FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | \
- FLOW_CTRL_CSR_ENABLE
- mov r4, #(1 << 4)
- orr r12, r12, r4, lsl r3
- str r12, [r1]
-
- /* Halt this CPU. */
- mov r3, #0x400
-delay_1:
- subs r3, r3, #1 @ delay as a part of wfe war.
- bge delay_1;
- cpsid a @ disable imprecise aborts.
- ldr r3, [r1] @ read CSR
- str r3, [r1] @ clear CSR
- tst r0, #TEGRA30_POWER_HOTPLUG_SHUTDOWN
- movne r3, #FLOW_CTRL_WAITEVENT @ For hotplug
- str r3, [r2]
- ldr r0, [r2]
- b wfe_war
-
-__cpu_reset_again:
- dsb
- .align 5
- wfe @ CPU should be power gated here
-wfe_war:
- b __cpu_reset_again
-
- /*
- * 38 nop's, which fills reset of wfe cache line and
- * 4 more cachelines with nop
- */
- .rept 38
- nop
- .endr
- b . @ should never get here
-
-ENDPROC(tegra30_cpu_shutdown)
-#endif
--- /dev/null
+/*
+ * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2011, Google, Inc.
+ *
+ * Author: Colin Cross <ccross@android.com>
+ * Gary King <gking@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/assembler.h>
+
+#include "sleep.h"
+#include "flowctrl.h"
+
+#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP)
+/*
+ * tegra20_hotplug_shutdown(void)
+ *
+ * puts the current cpu in reset
+ * should never return
+ */
+ENTRY(tegra20_hotplug_shutdown)
+ /* Turn off SMP coherency */
+ exit_smp r4, r5
+
+ /* Put this CPU down */
+ cpu_id r0
+ bl tegra20_cpu_shutdown
+ mov pc, lr @ should never get here
+ENDPROC(tegra20_hotplug_shutdown)
+
+/*
+ * tegra20_cpu_shutdown(int cpu)
+ *
+ * r0 is cpu to reset
+ *
+ * puts the specified CPU in wait-for-event mode on the flow controller
+ * and puts the CPU in reset
+ * can be called on the current cpu or another cpu
+ * if called on the current cpu, does not return
+ * MUST NOT BE CALLED FOR CPU 0.
+ *
+ * corrupts r0-r3, r12
+ */
+ENTRY(tegra20_cpu_shutdown)
+ cmp r0, #0
+ moveq pc, lr @ must not be called for CPU 0
+
+ cpu_to_halt_reg r1, r0
+ ldr r3, =TEGRA_FLOW_CTRL_VIRT
+ mov r2, #FLOW_CTRL_WAITEVENT | FLOW_CTRL_JTAG_RESUME
+ str r2, [r3, r1] @ put flow controller in wait event mode
+ ldr r2, [r3, r1]
+ isb
+ dsb
+ movw r1, 0x1011
+ mov r1, r1, lsl r0
+ ldr r3, =TEGRA_CLK_RESET_VIRT
+ str r1, [r3, #0x340] @ put slave CPU in reset
+ isb
+ dsb
+ cpu_id r3
+ cmp r3, r0
+ beq .
+ mov pc, lr
+ENDPROC(tegra20_cpu_shutdown)
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2012, NVIDIA Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/assembler.h>
+
+#include "sleep.h"
+#include "flowctrl.h"
+
+#define TEGRA30_POWER_HOTPLUG_SHUTDOWN (1 << 27) /* Hotplug shutdown */
+
+#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP)
+/*
+ * tegra30_hotplug_shutdown(void)
+ *
+ * Powergates the current CPU.
+ * Should never return.
+ */
+ENTRY(tegra30_hotplug_shutdown)
+ /* Turn off SMP coherency */
+ exit_smp r4, r5
+
+ /* Powergate this CPU */
+ mov r0, #TEGRA30_POWER_HOTPLUG_SHUTDOWN
+ bl tegra30_cpu_shutdown
+ mov pc, lr @ should never get here
+ENDPROC(tegra30_hotplug_shutdown)
+
+/*
+ * tegra30_cpu_shutdown(unsigned long flags)
+ *
+ * Puts the current CPU in wait-for-event mode on the flow controller
+ * and powergates it -- flags (in R0) indicate the request type.
+ * Must never be called for CPU 0.
+ *
+ * corrupts r0-r4, r12
+ */
+ENTRY(tegra30_cpu_shutdown)
+ cpu_id r3
+ cmp r3, #0
+ moveq pc, lr @ Must never be called for CPU 0
+
+ ldr r12, =TEGRA_FLOW_CTRL_VIRT
+ cpu_to_csr_reg r1, r3
+ add r1, r1, r12 @ virtual CSR address for this CPU
+ cpu_to_halt_reg r2, r3
+ add r2, r2, r12 @ virtual HALT_EVENTS address for this CPU
+
+ /*
+ * Clear this CPU's "event" and "interrupt" flags and power gate
+ * it when halting but not before it is in the "WFE" state.
+ */
+ movw r12, \
+ FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | \
+ FLOW_CTRL_CSR_ENABLE
+ mov r4, #(1 << 4)
+ orr r12, r12, r4, lsl r3
+ str r12, [r1]
+
+ /* Halt this CPU. */
+ mov r3, #0x400
+delay_1:
+ subs r3, r3, #1 @ delay as a part of wfe war.
+ bge delay_1;
+ cpsid a @ disable imprecise aborts.
+ ldr r3, [r1] @ read CSR
+ str r3, [r1] @ clear CSR
+ tst r0, #TEGRA30_POWER_HOTPLUG_SHUTDOWN
+ movne r3, #FLOW_CTRL_WAITEVENT @ For hotplug
+ str r3, [r2]
+ ldr r0, [r2]
+ b wfe_war
+
+__cpu_reset_again:
+ dsb
+ .align 5
+ wfe @ CPU should be power gated here
+wfe_war:
+ b __cpu_reset_again
+
+ /*
+ * 38 nop's, which fills reset of wfe cache line and
+ * 4 more cachelines with nop
+ */
+ .rept 38
+ nop
+ .endr
+ b . @ should never get here
+
+ENDPROC(tegra30_cpu_shutdown)
+#endif
projects / deliverable / linux.git / commitdiff
