Add support for PSCI SYSTEM_OFF and SYSTEM_RESET APIs
This patch adds support for SYSTEM_OFF and SYSTEM_RESET PSCI
operations. A platform should export handlers to complete the
requested operation. The FVP port exports fvp_system_off() and
fvp_system_reset() as an example.
If the SPD provides a power management hook for system off and
system reset, then the SPD is notified about the corresponding
operation so it can do some bookkeeping. The TSPD exports
tspd_system_off() and tspd_system_reset() for that purpose.
Versatile Express shutdown and reset methods have been removed
from the FDT as new PSCI sys_poweroff and sys_reset services
have been added. For those kernels that do not support yet these
PSCI services (i.e. GICv3 kernel), the original dtsi files have
been renamed to *-no_psci.dtsi.
Fixes ARM-software/tf-issues#218
Change-Id: Ic8a3bf801db979099ab7029162af041c4e8330c8
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index fb17a2e..53b58b3 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -50,7 +50,8 @@
services/std_svc/psci/psci_entry.S \
services/std_svc/psci/psci_helpers.S \
services/std_svc/psci/psci_main.c \
- services/std_svc/psci/psci_setup.c
+ services/std_svc/psci/psci_setup.c \
+ services/std_svc/psci/psci_system_off.c
BL31_LINKERFILE := bl31/bl31.ld.S
diff --git a/bl32/tsp/aarch64/tsp_entrypoint.S b/bl32/tsp/aarch64/tsp_entrypoint.S
index 8fae1b2..1cda165 100644
--- a/bl32/tsp/aarch64/tsp_entrypoint.S
+++ b/bl32/tsp/aarch64/tsp_entrypoint.S
@@ -162,6 +162,8 @@
b tsp_cpu_resume_entry
b tsp_cpu_suspend_entry
b tsp_fiq_entry
+ b tsp_system_off_entry
+ b tsp_system_reset_entry
/*---------------------------------------------
* This entrypoint is used by the TSPD when this
@@ -178,6 +180,28 @@
restore_args_call_smc
/*---------------------------------------------
+ * This entrypoint is used by the TSPD when the
+ * system is about to be switched off (through
+ * a SYSTEM_OFF psci call) to ask the TSP to
+ * perform any necessary bookkeeping.
+ * ---------------------------------------------
+ */
+func tsp_system_off_entry
+ bl tsp_system_off_main
+ restore_args_call_smc
+
+ /*---------------------------------------------
+ * This entrypoint is used by the TSPD when the
+ * system is about to be reset (through a
+ * SYSTEM_RESET psci call) to ask the TSP to
+ * perform any necessary bookkeeping.
+ * ---------------------------------------------
+ */
+func tsp_system_reset_entry
+ bl tsp_system_reset_main
+ restore_args_call_smc
+
+ /*---------------------------------------------
* This entrypoint is used by the TSPD when this
* cpu is turned on using a CPU_ON psci call to
* ask the TSP to initialise itself i.e. setup
diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c
index 08d89c3..193ba29 100644
--- a/bl32/tsp/tsp_main.c
+++ b/bl32/tsp/tsp_main.c
@@ -297,6 +297,72 @@
}
/*******************************************************************************
+ * This function performs any remaining bookkeeping in the test secure payload
+ * before the system is switched off (in response to a psci SYSTEM_OFF request)
+ ******************************************************************************/
+tsp_args_t *tsp_system_off_main(uint64_t arg0,
+ uint64_t arg1,
+ uint64_t arg2,
+ uint64_t arg3,
+ uint64_t arg4,
+ uint64_t arg5,
+ uint64_t arg6,
+ uint64_t arg7)
+{
+ uint64_t mpidr = read_mpidr();
+ uint32_t linear_id = platform_get_core_pos(mpidr);
+
+ /* Update this cpu's statistics */
+ tsp_stats[linear_id].smc_count++;
+ tsp_stats[linear_id].eret_count++;
+
+#if LOG_LEVEL >= LOG_LEVEL_INFO
+ spin_lock(&console_lock);
+ INFO("TSP: cpu 0x%x SYSTEM_OFF request\n", mpidr);
+ INFO("TSP: cpu 0x%x: %d smcs, %d erets requests\n", mpidr,
+ tsp_stats[linear_id].smc_count,
+ tsp_stats[linear_id].eret_count);
+ spin_unlock(&console_lock);
+#endif
+
+ /* Indicate to the SPD that we have completed this request */
+ return set_smc_args(TSP_SYSTEM_OFF_DONE, 0, 0, 0, 0, 0, 0, 0);
+}
+
+/*******************************************************************************
+ * This function performs any remaining bookkeeping in the test secure payload
+ * before the system is reset (in response to a psci SYSTEM_RESET request)
+ ******************************************************************************/
+tsp_args_t *tsp_system_reset_main(uint64_t arg0,
+ uint64_t arg1,
+ uint64_t arg2,
+ uint64_t arg3,
+ uint64_t arg4,
+ uint64_t arg5,
+ uint64_t arg6,
+ uint64_t arg7)
+{
+ uint64_t mpidr = read_mpidr();
+ uint32_t linear_id = platform_get_core_pos(mpidr);
+
+ /* Update this cpu's statistics */
+ tsp_stats[linear_id].smc_count++;
+ tsp_stats[linear_id].eret_count++;
+
+#if LOG_LEVEL >= LOG_LEVEL_INFO
+ spin_lock(&console_lock);
+ INFO("TSP: cpu 0x%x SYSTEM_RESET request\n", mpidr);
+ INFO("TSP: cpu 0x%x: %d smcs, %d erets requests\n", mpidr,
+ tsp_stats[linear_id].smc_count,
+ tsp_stats[linear_id].eret_count);
+ spin_unlock(&console_lock);
+#endif
+
+ /* Indicate to the SPD that we have completed this request */
+ return set_smc_args(TSP_SYSTEM_RESET_DONE, 0, 0, 0, 0, 0, 0, 0);
+}
+
+/*******************************************************************************
* TSP fast smc handler. The secure monitor jumps to this function by
* doing the ERET after populating X0-X7 registers. The arguments are received
* in the function arguments in order. Once the service is rendered, this
diff --git a/fdts/fvp-base-gicv2-psci.dtb b/fdts/fvp-base-gicv2-psci.dtb
index efe83be..619348e 100644
--- a/fdts/fvp-base-gicv2-psci.dtb
+++ b/fdts/fvp-base-gicv2-psci.dtb
Binary files differ
diff --git a/fdts/fvp-base-gicv2-psci.dts b/fdts/fvp-base-gicv2-psci.dts
index 2b2c2b0..d20f7bd 100644
--- a/fdts/fvp-base-gicv2-psci.dts
+++ b/fdts/fvp-base-gicv2-psci.dts
@@ -57,6 +57,8 @@
cpu_suspend = <0xc4000001>;
cpu_off = <0x84000002>;
cpu_on = <0xc4000003>;
+ sys_poweroff = <0x84000008>;
+ sys_reset = <0x84000009>;
};
cpus {
diff --git a/fdts/fvp-base-gicv2legacy-psci.dtb b/fdts/fvp-base-gicv2legacy-psci.dtb
index 7243c06..1230717 100644
--- a/fdts/fvp-base-gicv2legacy-psci.dtb
+++ b/fdts/fvp-base-gicv2legacy-psci.dtb
Binary files differ
diff --git a/fdts/fvp-base-gicv2legacy-psci.dts b/fdts/fvp-base-gicv2legacy-psci.dts
index 620bc05..3eb0e57 100644
--- a/fdts/fvp-base-gicv2legacy-psci.dts
+++ b/fdts/fvp-base-gicv2legacy-psci.dts
@@ -57,6 +57,8 @@
cpu_suspend = <0xc4000001>;
cpu_off = <0x84000002>;
cpu_on = <0xc4000003>;
+ sys_poweroff = <0x84000008>;
+ sys_reset = <0x84000009>;
};
cpus {
diff --git a/fdts/fvp-base-gicv3-psci.dts b/fdts/fvp-base-gicv3-psci.dts
index d111a99..44339a1 100644
--- a/fdts/fvp-base-gicv3-psci.dts
+++ b/fdts/fvp-base-gicv3-psci.dts
@@ -229,7 +229,7 @@
<0 0 41 &gic 0 0 0 41 4>,
<0 0 42 &gic 0 0 0 42 4>;
- /include/ "rtsm_ve-motherboard.dtsi"
+ /include/ "rtsm_ve-motherboard-no_psci.dtsi"
};
panels {
diff --git a/fdts/fvp-foundation-gicv2-psci.dtb b/fdts/fvp-foundation-gicv2-psci.dtb
index 70175e8..eee0be0 100644
--- a/fdts/fvp-foundation-gicv2-psci.dtb
+++ b/fdts/fvp-foundation-gicv2-psci.dtb
Binary files differ
diff --git a/fdts/fvp-foundation-gicv2-psci.dts b/fdts/fvp-foundation-gicv2-psci.dts
index 8f3de9d..8d354b3 100644
--- a/fdts/fvp-foundation-gicv2-psci.dts
+++ b/fdts/fvp-foundation-gicv2-psci.dts
@@ -57,6 +57,8 @@
cpu_suspend = <0xc4000001>;
cpu_off = <0x84000002>;
cpu_on = <0xc4000003>;
+ sys_poweroff = <0x84000008>;
+ sys_reset = <0x84000009>;
};
cpus {
diff --git a/fdts/fvp-foundation-gicv2legacy-psci.dtb b/fdts/fvp-foundation-gicv2legacy-psci.dtb
index 564d223..58bb9b3 100644
--- a/fdts/fvp-foundation-gicv2legacy-psci.dtb
+++ b/fdts/fvp-foundation-gicv2legacy-psci.dtb
Binary files differ
diff --git a/fdts/fvp-foundation-gicv2legacy-psci.dts b/fdts/fvp-foundation-gicv2legacy-psci.dts
index 951da06..2a694f4 100644
--- a/fdts/fvp-foundation-gicv2legacy-psci.dts
+++ b/fdts/fvp-foundation-gicv2legacy-psci.dts
@@ -57,6 +57,8 @@
cpu_suspend = <0xc4000001>;
cpu_off = <0x84000002>;
cpu_on = <0xc4000003>;
+ sys_poweroff = <0x84000008>;
+ sys_reset = <0x84000009>;
};
cpus {
diff --git a/fdts/fvp-foundation-gicv3-psci.dts b/fdts/fvp-foundation-gicv3-psci.dts
index 7692c61..1a841f3 100644
--- a/fdts/fvp-foundation-gicv3-psci.dts
+++ b/fdts/fvp-foundation-gicv3-psci.dts
@@ -205,6 +205,6 @@
<0 0 41 &gic 0 0 0 41 4>,
<0 0 42 &gic 0 0 0 42 4>;
- /include/ "fvp-foundation-motherboard.dtsi"
+ /include/ "fvp-foundation-motherboard-no_psci.dtsi"
};
};
diff --git a/fdts/fvp-foundation-motherboard-no_psci.dtsi b/fdts/fvp-foundation-motherboard-no_psci.dtsi
new file mode 100644
index 0000000..fd41c8a
--- /dev/null
+++ b/fdts/fvp-foundation-motherboard-no_psci.dtsi
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of the ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+ motherboard {
+ arm,v2m-memory-map = "rs1";
+ compatible = "arm,vexpress,v2m-p1", "simple-bus";
+ #address-cells = <2>; /* SMB chipselect number and offset */
+ #size-cells = <1>;
+ #interrupt-cells = <1>;
+ ranges;
+
+ ethernet@2,02000000 {
+ compatible = "smsc,lan91c111";
+ reg = <2 0x02000000 0x10000>;
+ interrupts = <15>;
+ };
+
+ v2m_clk24mhz: clk24mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ clock-output-names = "v2m:clk24mhz";
+ };
+
+ v2m_refclk1mhz: refclk1mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1000000>;
+ clock-output-names = "v2m:refclk1mhz";
+ };
+
+ v2m_refclk32khz: refclk32khz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-output-names = "v2m:refclk32khz";
+ };
+
+ iofpga@3,00000000 {
+ compatible = "arm,amba-bus", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 3 0 0x200000>;
+
+ v2m_sysreg: sysreg@010000 {
+ compatible = "arm,vexpress-sysreg";
+ reg = <0x010000 0x1000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ v2m_sysctl: sysctl@020000 {
+ compatible = "arm,sp810", "arm,primecell";
+ reg = <0x020000 0x1000>;
+ clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&v2m_clk24mhz>;
+ clock-names = "refclk", "timclk", "apb_pclk";
+ #clock-cells = <1>;
+ clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
+ };
+
+ v2m_serial0: uart@090000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x090000 0x1000>;
+ interrupts = <5>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial1: uart@0a0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0a0000 0x1000>;
+ interrupts = <6>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial2: uart@0b0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0b0000 0x1000>;
+ interrupts = <7>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial3: uart@0c0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0c0000 0x1000>;
+ interrupts = <8>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ wdt@0f0000 {
+ compatible = "arm,sp805", "arm,primecell";
+ reg = <0x0f0000 0x1000>;
+ interrupts = <0>;
+ clocks = <&v2m_refclk32khz>, <&v2m_clk24mhz>;
+ clock-names = "wdogclk", "apb_pclk";
+ };
+
+ v2m_timer01: timer@110000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x110000 0x1000>;
+ interrupts = <2>;
+ clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_clk24mhz>;
+ clock-names = "timclken1", "timclken2", "apb_pclk";
+ };
+
+ v2m_timer23: timer@120000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x120000 0x1000>;
+ interrupts = <3>;
+ clocks = <&v2m_sysctl 2>, <&v2m_sysctl 3>, <&v2m_clk24mhz>;
+ clock-names = "timclken1", "timclken2", "apb_pclk";
+ };
+
+ rtc@170000 {
+ compatible = "arm,pl031", "arm,primecell";
+ reg = <0x170000 0x1000>;
+ interrupts = <4>;
+ clocks = <&v2m_clk24mhz>;
+ clock-names = "apb_pclk";
+ };
+
+ virtio_block@0130000 {
+ compatible = "virtio,mmio";
+ reg = <0x130000 0x1000>;
+ interrupts = <0x2a>;
+ };
+ };
+
+ v2m_fixed_3v3: fixedregulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+
+ mcc {
+ compatible = "arm,vexpress,config-bus", "simple-bus";
+ arm,vexpress,config-bridge = <&v2m_sysreg>;
+
+ reset@0 {
+ compatible = "arm,vexpress-reset";
+ arm,vexpress-sysreg,func = <5 0>;
+ };
+
+ muxfpga@0 {
+ compatible = "arm,vexpress-muxfpga";
+ arm,vexpress-sysreg,func = <7 0>;
+ };
+
+ shutdown@0 {
+ compatible = "arm,vexpress-shutdown";
+ arm,vexpress-sysreg,func = <8 0>;
+ };
+
+ reboot@0 {
+ compatible = "arm,vexpress-reboot";
+ arm,vexpress-sysreg,func = <9 0>;
+ };
+
+ dvimode@0 {
+ compatible = "arm,vexpress-dvimode";
+ arm,vexpress-sysreg,func = <11 0>;
+ };
+ };
+ };
diff --git a/fdts/fvp-foundation-motherboard.dtsi b/fdts/fvp-foundation-motherboard.dtsi
index fd41c8a..9d29e48 100644
--- a/fdts/fvp-foundation-motherboard.dtsi
+++ b/fdts/fvp-foundation-motherboard.dtsi
@@ -169,25 +169,37 @@
compatible = "arm,vexpress,config-bus", "simple-bus";
arm,vexpress,config-bridge = <&v2m_sysreg>;
- reset@0 {
- compatible = "arm,vexpress-reset";
- arm,vexpress-sysreg,func = <5 0>;
- };
+ /*
+ * Not supported in FVP models
+ *
+ * reset@0 {
+ * compatible = "arm,vexpress-reset";
+ * arm,vexpress-sysreg,func = <5 0>;
+ * };
+ */
muxfpga@0 {
compatible = "arm,vexpress-muxfpga";
arm,vexpress-sysreg,func = <7 0>;
};
- shutdown@0 {
- compatible = "arm,vexpress-shutdown";
- arm,vexpress-sysreg,func = <8 0>;
- };
+ /*
+ * Not used - Superseded by PSCI sys_poweroff
+ *
+ * shutdown@0 {
+ * compatible = "arm,vexpress-shutdown";
+ * arm,vexpress-sysreg,func = <8 0>;
+ * };
+ */
- reboot@0 {
- compatible = "arm,vexpress-reboot";
- arm,vexpress-sysreg,func = <9 0>;
- };
+ /*
+ * Not used - Superseded by PSCI sys_reset
+ *
+ * reboot@0 {
+ * compatible = "arm,vexpress-reboot";
+ * arm,vexpress-sysreg,func = <9 0>;
+ * };
+ */
dvimode@0 {
compatible = "arm,vexpress-dvimode";
diff --git a/fdts/rtsm_ve-motherboard-no_psci.dtsi b/fdts/rtsm_ve-motherboard-no_psci.dtsi
new file mode 100644
index 0000000..7ba575e
--- /dev/null
+++ b/fdts/rtsm_ve-motherboard-no_psci.dtsi
@@ -0,0 +1,264 @@
+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+ motherboard {
+ arm,v2m-memory-map = "rs1";
+ compatible = "arm,vexpress,v2m-p1", "simple-bus";
+ #address-cells = <2>; /* SMB chipselect number and offset */
+ #size-cells = <1>;
+ #interrupt-cells = <1>;
+ ranges;
+
+ flash@0,00000000 {
+ compatible = "arm,vexpress-flash", "cfi-flash";
+ reg = <0 0x00000000 0x04000000>,
+ <4 0x00000000 0x04000000>;
+ bank-width = <4>;
+ };
+
+ vram@2,00000000 {
+ compatible = "arm,vexpress-vram";
+ reg = <2 0x00000000 0x00800000>;
+ };
+
+ ethernet@2,02000000 {
+ compatible = "smsc,lan91c111";
+ reg = <2 0x02000000 0x10000>;
+ interrupts = <15>;
+ };
+
+ v2m_clk24mhz: clk24mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ clock-output-names = "v2m:clk24mhz";
+ };
+
+ v2m_refclk1mhz: refclk1mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1000000>;
+ clock-output-names = "v2m:refclk1mhz";
+ };
+
+ v2m_refclk32khz: refclk32khz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-output-names = "v2m:refclk32khz";
+ };
+
+ iofpga@3,00000000 {
+ compatible = "arm,amba-bus", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 3 0 0x200000>;
+
+ v2m_sysreg: sysreg@010000 {
+ compatible = "arm,vexpress-sysreg";
+ reg = <0x010000 0x1000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ v2m_sysctl: sysctl@020000 {
+ compatible = "arm,sp810", "arm,primecell";
+ reg = <0x020000 0x1000>;
+ clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&v2m_clk24mhz>;
+ clock-names = "refclk", "timclk", "apb_pclk";
+ #clock-cells = <1>;
+ clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
+ };
+
+ aaci@040000 {
+ compatible = "arm,pl041", "arm,primecell";
+ reg = <0x040000 0x1000>;
+ interrupts = <11>;
+ clocks = <&v2m_clk24mhz>;
+ clock-names = "apb_pclk";
+ };
+
+ mmci@050000 {
+ compatible = "arm,pl180", "arm,primecell";
+ reg = <0x050000 0x1000>;
+ interrupts = <9 10>;
+ cd-gpios = <&v2m_sysreg 0 0>;
+ wp-gpios = <&v2m_sysreg 1 0>;
+ max-frequency = <12000000>;
+ vmmc-supply = <&v2m_fixed_3v3>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "mclk", "apb_pclk";
+ };
+
+ kmi@060000 {
+ compatible = "arm,pl050", "arm,primecell";
+ reg = <0x060000 0x1000>;
+ interrupts = <12>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "KMIREFCLK", "apb_pclk";
+ };
+
+ kmi@070000 {
+ compatible = "arm,pl050", "arm,primecell";
+ reg = <0x070000 0x1000>;
+ interrupts = <13>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "KMIREFCLK", "apb_pclk";
+ };
+
+ v2m_serial0: uart@090000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x090000 0x1000>;
+ interrupts = <5>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial1: uart@0a0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0a0000 0x1000>;
+ interrupts = <6>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial2: uart@0b0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0b0000 0x1000>;
+ interrupts = <7>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ v2m_serial3: uart@0c0000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0c0000 0x1000>;
+ interrupts = <8>;
+ clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>;
+ clock-names = "uartclk", "apb_pclk";
+ };
+
+ wdt@0f0000 {
+ compatible = "arm,sp805", "arm,primecell";
+ reg = <0x0f0000 0x1000>;
+ interrupts = <0>;
+ clocks = <&v2m_refclk32khz>, <&v2m_clk24mhz>;
+ clock-names = "wdogclk", "apb_pclk";
+ };
+
+ v2m_timer01: timer@110000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x110000 0x1000>;
+ interrupts = <2>;
+ clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_clk24mhz>;
+ clock-names = "timclken1", "timclken2", "apb_pclk";
+ };
+
+ v2m_timer23: timer@120000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x120000 0x1000>;
+ interrupts = <3>;
+ clocks = <&v2m_sysctl 2>, <&v2m_sysctl 3>, <&v2m_clk24mhz>;
+ clock-names = "timclken1", "timclken2", "apb_pclk";
+ };
+
+ rtc@170000 {
+ compatible = "arm,pl031", "arm,primecell";
+ reg = <0x170000 0x1000>;
+ interrupts = <4>;
+ clocks = <&v2m_clk24mhz>;
+ clock-names = "apb_pclk";
+ };
+
+ clcd@1f0000 {
+ compatible = "arm,pl111", "arm,primecell";
+ reg = <0x1f0000 0x1000>;
+ interrupts = <14>;
+ clocks = <&v2m_oscclk1>, <&v2m_clk24mhz>;
+ clock-names = "clcdclk", "apb_pclk";
+ mode = "XVGA";
+ use_dma = <0>;
+ framebuffer = <0x18000000 0x00180000>;
+ };
+
+ virtio_block@0130000 {
+ compatible = "virtio,mmio";
+ reg = <0x130000 0x1000>;
+ interrupts = <0x2a>;
+ };
+ };
+
+ v2m_fixed_3v3: fixedregulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ mcc {
+ compatible = "arm,vexpress,config-bus", "simple-bus";
+ arm,vexpress,config-bridge = <&v2m_sysreg>;
+
+ v2m_oscclk1: osc@1 {
+ /* CLCD clock */
+ compatible = "arm,vexpress-osc";
+ arm,vexpress-sysreg,func = <1 1>;
+ freq-range = <23750000 63500000>;
+ #clock-cells = <0>;
+ clock-output-names = "v2m:oscclk1";
+ };
+
+ reset@0 {
+ compatible = "arm,vexpress-reset";
+ arm,vexpress-sysreg,func = <5 0>;
+ };
+
+ muxfpga@0 {
+ compatible = "arm,vexpress-muxfpga";
+ arm,vexpress-sysreg,func = <7 0>;
+ };
+
+ shutdown@0 {
+ compatible = "arm,vexpress-shutdown";
+ arm,vexpress-sysreg,func = <8 0>;
+ };
+
+ reboot@0 {
+ compatible = "arm,vexpress-reboot";
+ arm,vexpress-sysreg,func = <9 0>;
+ };
+
+ dvimode@0 {
+ compatible = "arm,vexpress-dvimode";
+ arm,vexpress-sysreg,func = <11 0>;
+ };
+ };
+ };
diff --git a/fdts/rtsm_ve-motherboard.dtsi b/fdts/rtsm_ve-motherboard.dtsi
index 7ba575e..6aa40ff 100644
--- a/fdts/rtsm_ve-motherboard.dtsi
+++ b/fdts/rtsm_ve-motherboard.dtsi
@@ -236,25 +236,37 @@
clock-output-names = "v2m:oscclk1";
};
- reset@0 {
- compatible = "arm,vexpress-reset";
- arm,vexpress-sysreg,func = <5 0>;
- };
+ /*
+ * Not supported in FVP models
+ *
+ * reset@0 {
+ * compatible = "arm,vexpress-reset";
+ * arm,vexpress-sysreg,func = <5 0>;
+ * };
+ */
muxfpga@0 {
compatible = "arm,vexpress-muxfpga";
arm,vexpress-sysreg,func = <7 0>;
};
- shutdown@0 {
- compatible = "arm,vexpress-shutdown";
- arm,vexpress-sysreg,func = <8 0>;
- };
+ /*
+ * Not used - Superseded by PSCI sys_poweroff
+ *
+ * shutdown@0 {
+ * compatible = "arm,vexpress-shutdown";
+ * arm,vexpress-sysreg,func = <8 0>;
+ * };
+ */
- reboot@0 {
- compatible = "arm,vexpress-reboot";
- arm,vexpress-sysreg,func = <9 0>;
- };
+ /*
+ * Not used - Superseded by PSCI sys_reset
+ *
+ * reboot@0 {
+ * compatible = "arm,vexpress-reboot";
+ * arm,vexpress-sysreg,func = <9 0>;
+ * };
+ */
dvimode@0 {
compatible = "arm,vexpress-dvimode";
diff --git a/include/bl31/services/psci.h b/include/bl31/services/psci.h
index 77f406d..6512dfb 100644
--- a/include/bl31/services/psci.h
+++ b/include/bl31/services/psci.h
@@ -52,10 +52,9 @@
#define PSCI_SYSTEM_RESET 0x84000009
/*
- * Number of PSCI calls (above) implemented. System off and reset aren't
- * implemented as yet
+ * Number of PSCI calls (above) implemented
*/
-#define PSCI_NUM_CALLS 13
+#define PSCI_NUM_CALLS 15
/*******************************************************************************
* PSCI Migrate and friends
@@ -154,6 +153,8 @@
int (*affinst_suspend_finish)(unsigned long,
unsigned int,
unsigned int);
+ void (*system_off)(void) __dead2;
+ void (*system_reset)(void) __dead2;
} plat_pm_ops_t;
/*******************************************************************************
@@ -170,6 +171,8 @@
void (*svc_suspend_finish)(uint64_t suspend_level);
void (*svc_migrate)(uint64_t __unused1, uint64_t __unused2);
int32_t (*svc_migrate_info)(uint64_t *__unused);
+ void (*svc_system_off)(void);
+ void (*svc_system_reset)(void);
} spd_pm_ops_t;
/*******************************************************************************
@@ -182,8 +185,6 @@
int psci_migrate(unsigned int);
unsigned int psci_migrate_info_type(void);
unsigned long psci_migrate_info_up_cpu(void);
-void psci_system_off(void);
-void psci_system_reset(void);
int psci_cpu_on(unsigned long,
unsigned long,
unsigned long);
diff --git a/include/bl32/tsp/tsp.h b/include/bl32/tsp/tsp.h
index c0b191f..c6578b7 100644
--- a/include/bl32/tsp/tsp.h
+++ b/include/bl32/tsp/tsp.h
@@ -41,6 +41,8 @@
#define TSP_SUSPEND_DONE 0xf2000003
#define TSP_RESUME_DONE 0xf2000004
#define TSP_PREEMPTED 0xf2000005
+#define TSP_SYSTEM_OFF_DONE 0xf2000008
+#define TSP_SYSTEM_RESET_DONE 0xf2000009
/*
* Function identifiers to handle FIQs through the synchronous handling model.
@@ -114,6 +116,8 @@
tsp_vector_isn_t cpu_resume_entry;
tsp_vector_isn_t cpu_suspend_entry;
tsp_vector_isn_t fiq_entry;
+ tsp_vector_isn_t system_off_entry;
+ tsp_vector_isn_t system_reset_entry;
} tsp_vectors_t;
diff --git a/plat/fvp/fvp_def.h b/plat/fvp/fvp_def.h
index b2c26fc..9914f69 100644
--- a/plat/fvp/fvp_def.h
+++ b/plat/fvp/fvp_def.h
@@ -120,10 +120,23 @@
/* V2M motherboard system registers & offsets */
#define VE_SYSREGS_BASE 0x1c010000
-#define V2M_SYS_ID 0x0
-#define V2M_SYS_LED 0x8
+#define V2M_SYS_ID 0x0
+#define V2M_SYS_SWITCH 0x4
+#define V2M_SYS_LED 0x8
#define V2M_SYS_CFGDATA 0xa0
#define V2M_SYS_CFGCTRL 0xa4
+#define V2M_SYS_CFGSTATUS 0xa8
+
+#define CFGCTRL_START (1 << 31)
+#define CFGCTRL_RW (1 << 30)
+#define CFGCTRL_FUNC_SHIFT 20
+#define CFGCTRL_FUNC(fn) (fn << CFGCTRL_FUNC_SHIFT)
+#define FUNC_CLK_GEN 0x01
+#define FUNC_TEMP 0x04
+#define FUNC_DB_RESET 0x05
+#define FUNC_SCC_CFG 0x06
+#define FUNC_SHUTDOWN 0x08
+#define FUNC_REBOOT 0x09
/* Load address of BL33 in the FVP port */
#define NS_IMAGE_OFFSET (DRAM1_BASE + 0x8000000) /* DRAM + 128MB */
diff --git a/plat/fvp/fvp_pm.c b/plat/fvp/fvp_pm.c
index b7e49a2..87ef54c 100644
--- a/plat/fvp/fvp_pm.c
+++ b/plat/fvp/fvp_pm.c
@@ -33,6 +33,7 @@
#include <assert.h>
#include <bakery_lock.h>
#include <cci400.h>
+#include <debug.h>
#include <mmio.h>
#include <platform.h>
#include <plat_config.h>
@@ -364,17 +365,41 @@
return fvp_affinst_on_finish(mpidr, afflvl, state);
}
+/*******************************************************************************
+ * FVP handlers to shutdown/reboot the system
+ ******************************************************************************/
+static void __dead2 fvp_system_off(void)
+{
+ /* Write the System Configuration Control Register */
+ mmio_write_32(VE_SYSREGS_BASE + V2M_SYS_CFGCTRL,
+ CFGCTRL_START | CFGCTRL_RW | CFGCTRL_FUNC(FUNC_SHUTDOWN));
+ wfi();
+ ERROR("FVP System Off: operation not handled.\n");
+ panic();
+}
+
+static void __dead2 fvp_system_reset(void)
+{
+ /* Write the System Configuration Control Register */
+ mmio_write_32(VE_SYSREGS_BASE + V2M_SYS_CFGCTRL,
+ CFGCTRL_START | CFGCTRL_RW | CFGCTRL_FUNC(FUNC_REBOOT));
+ wfi();
+ ERROR("FVP System Reset: operation not handled.\n");
+ panic();
+}
/*******************************************************************************
* Export the platform handlers to enable psci to invoke them
******************************************************************************/
static const plat_pm_ops_t fvp_plat_pm_ops = {
- fvp_affinst_standby,
- fvp_affinst_on,
- fvp_affinst_off,
- fvp_affinst_suspend,
- fvp_affinst_on_finish,
- fvp_affinst_suspend_finish,
+ .affinst_standby = fvp_affinst_standby,
+ .affinst_on = fvp_affinst_on,
+ .affinst_off = fvp_affinst_off,
+ .affinst_suspend = fvp_affinst_suspend,
+ .affinst_on_finish = fvp_affinst_on_finish,
+ .affinst_suspend_finish = fvp_affinst_suspend_finish,
+ .system_off = fvp_system_off,
+ .system_reset = fvp_system_reset
};
/*******************************************************************************
diff --git a/services/spd/tspd/tspd_main.c b/services/spd/tspd/tspd_main.c
index 22f302a..b8d4569 100644
--- a/services/spd/tspd/tspd_main.c
+++ b/services/spd/tspd/tspd_main.c
@@ -437,6 +437,8 @@
*/
case TSP_OFF_DONE:
case TSP_SUSPEND_DONE:
+ case TSP_SYSTEM_OFF_DONE:
+ case TSP_SYSTEM_RESET_DONE:
if (ns)
SMC_RET1(handle, SMC_UNK);
diff --git a/services/spd/tspd/tspd_pm.c b/services/spd/tspd/tspd_pm.c
index e9e037a..1655285 100644
--- a/services/spd/tspd/tspd_pm.c
+++ b/services/spd/tspd/tspd_pm.c
@@ -193,16 +193,59 @@
}
/*******************************************************************************
+ * System is about to be switched off. Allow the TSPD/TSP to perform
+ * any actions needed.
+ ******************************************************************************/
+static void tspd_system_off(void)
+{
+ uint64_t mpidr = read_mpidr();
+ uint32_t linear_id = platform_get_core_pos(mpidr);
+ tsp_context_t *tsp_ctx = &tspd_sp_context[linear_id];
+
+ assert(tsp_vectors);
+ assert(get_tsp_pstate(tsp_ctx->state) == TSP_PSTATE_ON);
+
+ /* Program the entry point */
+ cm_set_elr_el3(SECURE, (uint64_t) &tsp_vectors->system_off_entry);
+
+ /* Enter the TSP. We do not care about the return value because we
+ * must continue the shutdown anyway */
+ tspd_synchronous_sp_entry(tsp_ctx);
+}
+
+/*******************************************************************************
+ * System is about to be reset. Allow the TSPD/TSP to perform
+ * any actions needed.
+ ******************************************************************************/
+static void tspd_system_reset(void)
+{
+ uint64_t mpidr = read_mpidr();
+ uint32_t linear_id = platform_get_core_pos(mpidr);
+ tsp_context_t *tsp_ctx = &tspd_sp_context[linear_id];
+
+ assert(tsp_vectors);
+ assert(get_tsp_pstate(tsp_ctx->state) == TSP_PSTATE_ON);
+
+ /* Program the entry point */
+ cm_set_elr_el3(SECURE, (uint64_t) &tsp_vectors->system_reset_entry);
+
+ /* Enter the TSP. We do not care about the return value because we
+ * must continue the reset anyway */
+ tspd_synchronous_sp_entry(tsp_ctx);
+}
+
+/*******************************************************************************
* Structure populated by the TSP Dispatcher to be given a chance to perform any
* TSP bookkeeping before PSCI executes a power mgmt. operation.
******************************************************************************/
const spd_pm_ops_t tspd_pm = {
- tspd_cpu_on_handler,
- tspd_cpu_off_handler,
- tspd_cpu_suspend_handler,
- tspd_cpu_on_finish_handler,
- tspd_cpu_suspend_finish_handler,
- NULL,
- tspd_cpu_migrate_info
+ .svc_on = tspd_cpu_on_handler,
+ .svc_off = tspd_cpu_off_handler,
+ .svc_suspend = tspd_cpu_suspend_handler,
+ .svc_on_finish = tspd_cpu_on_finish_handler,
+ .svc_suspend_finish = tspd_cpu_suspend_finish_handler,
+ .svc_migrate = NULL,
+ .svc_migrate_info = tspd_cpu_migrate_info,
+ .svc_system_off = tspd_system_off,
+ .svc_system_reset = tspd_system_reset
};
-
diff --git a/services/std_svc/psci/psci_common.c b/services/std_svc/psci/psci_common.c
index 56f3daf..2fd1764 100644
--- a/services/std_svc/psci/psci_common.c
+++ b/services/std_svc/psci/psci_common.c
@@ -446,3 +446,33 @@
{
psci_spd_pm = pm;
}
+
+/*******************************************************************************
+ * This function prints the state of all affinity instances present in the
+ * system
+ ******************************************************************************/
+void psci_print_affinity_map(void)
+{
+#if LOG_LEVEL >= LOG_LEVEL_INFO
+ aff_map_node_t *node;
+ unsigned int idx;
+ /* This array maps to the PSCI_STATE_X definitions in psci.h */
+ static const char *psci_state_str[] = {
+ "ON",
+ "OFF",
+ "ON_PENDING",
+ "SUSPEND"
+ };
+
+ INFO("PSCI Affinity Map:\n");
+ for (idx = 0; idx < PSCI_NUM_AFFS ; idx++) {
+ node = &psci_aff_map[idx];
+ if (!(node->state & PSCI_AFF_PRESENT)) {
+ continue;
+ }
+ INFO(" AffInst: Level %u, MPID 0x%lx, State %s\n",
+ node->level, node->mpidr,
+ psci_state_str[psci_get_state(node)]);
+ }
+#endif
+}
diff --git a/services/std_svc/psci/psci_main.c b/services/std_svc/psci/psci_main.c
index 21968d9..0ffa5d7 100644
--- a/services/std_svc/psci/psci_main.c
+++ b/services/std_svc/psci/psci_main.c
@@ -250,6 +250,14 @@
case PSCI_MIG_INFO_UP_CPU_AARCH32:
SMC_RET1(handle, psci_migrate_info_up_cpu());
+ case PSCI_SYSTEM_OFF:
+ psci_system_off();
+ /* We should never return from psci_system_off() */
+
+ case PSCI_SYSTEM_RESET:
+ psci_system_reset();
+ /* We should never return from psci_system_reset() */
+
default:
break;
}
diff --git a/services/std_svc/psci/psci_private.h b/services/std_svc/psci/psci_private.h
index b47bf85..4bf9107 100644
--- a/services/std_svc/psci/psci_private.h
+++ b/services/std_svc/psci/psci_private.h
@@ -99,6 +99,7 @@
void psci_release_afflvl_locks(int start_afflvl,
int end_afflvl,
mpidr_aff_map_nodes_t mpidr_nodes);
+void psci_print_affinity_map(void);
/* Private exported functions from psci_setup.c */
int psci_get_aff_map_nodes(unsigned long mpidr,
@@ -132,4 +133,8 @@
void psci_do_pwrdown_cache_maintenance(uint32_t affinity_level);
void psci_do_pwrup_cache_maintenance(void);
+/* Private exported functions from psci_system_off.c */
+void __dead2 psci_system_off(void);
+void __dead2 psci_system_reset(void);
+
#endif /* __PSCI_PRIVATE_H__ */
diff --git a/services/std_svc/psci/psci_system_off.c b/services/std_svc/psci/psci_system_off.c
new file mode 100644
index 0000000..f2520b6
--- /dev/null
+++ b/services/std_svc/psci/psci_system_off.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stddef.h>
+#include <arch_helpers.h>
+#include <debug.h>
+#include <platform.h>
+#include "psci_private.h"
+
+void psci_system_off(void)
+{
+ /* Check platform support */
+ if (!psci_plat_pm_ops->system_off) {
+ ERROR("Platform has not exported a PSCI System Off hook.\n");
+ panic();
+ }
+
+ psci_print_affinity_map();
+
+ /* Notify the Secure Payload Dispatcher */
+ if (psci_spd_pm && psci_spd_pm->svc_system_off) {
+ psci_spd_pm->svc_system_off();
+ }
+
+ /* Call the platform specific hook */
+ psci_plat_pm_ops->system_off();
+
+ /* This function does not return. We should never get here */
+}
+
+void psci_system_reset(void)
+{
+ /* Check platform support */
+ if (!psci_plat_pm_ops->system_reset) {
+ ERROR("Platform has not exported a PSCI System Reset hook.\n");
+ panic();
+ }
+
+ psci_print_affinity_map();
+
+ /* Notify the Secure Payload Dispatcher */
+ if (psci_spd_pm && psci_spd_pm->svc_system_reset) {
+ psci_spd_pm->svc_system_reset();
+ }
+
+ /* Call the platform specific hook */
+ psci_plat_pm_ops->system_reset();
+
+ /* This function does not return. We should never get here */
+}