From: Juan Castillo Date: Tue, 12 Aug 2014 10:17:06 +0000 (+0100) Subject: Add support for PSCI SYSTEM_OFF and SYSTEM_RESET APIs X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d5f130930624ceb95cde40de999a880aa2b00493;p=project%2Fbcm63xx%2Fatf.git 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 fb17a2e6..53b58b3a 100644 --- a/bl31/bl31.mk +++ b/bl31/bl31.mk @@ -50,7 +50,8 @@ BL31_SOURCES += bl31/bl31_main.c \ 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 8fae1b2b..1cda1653 100644 --- a/bl32/tsp/aarch64/tsp_entrypoint.S +++ b/bl32/tsp/aarch64/tsp_entrypoint.S @@ -162,6 +162,8 @@ func tsp_vector_table 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 @@ -177,6 +179,28 @@ func tsp_cpu_off_entry bl tsp_cpu_off_main 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 diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c index 08d89c3d..193ba29b 100644 --- a/bl32/tsp/tsp_main.c +++ b/bl32/tsp/tsp_main.c @@ -296,6 +296,72 @@ tsp_args_t *tsp_cpu_resume_main(uint64_t suspend_level, return set_smc_args(TSP_RESUME_DONE, 0, 0, 0, 0, 0, 0, 0); } +/******************************************************************************* + * 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 diff --git a/fdts/fvp-base-gicv2-psci.dtb b/fdts/fvp-base-gicv2-psci.dtb index efe83be5..619348ea 100644 Binary files a/fdts/fvp-base-gicv2-psci.dtb and b/fdts/fvp-base-gicv2-psci.dtb differ diff --git a/fdts/fvp-base-gicv2-psci.dts b/fdts/fvp-base-gicv2-psci.dts index 2b2c2b09..d20f7bd5 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 7243c065..12307177 100644 Binary files a/fdts/fvp-base-gicv2legacy-psci.dtb and b/fdts/fvp-base-gicv2legacy-psci.dtb differ diff --git a/fdts/fvp-base-gicv2legacy-psci.dts b/fdts/fvp-base-gicv2legacy-psci.dts index 620bc05b..3eb0e571 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 d111a991..44339a12 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 70175e89..eee0be0e 100644 Binary files a/fdts/fvp-foundation-gicv2-psci.dtb and b/fdts/fvp-foundation-gicv2-psci.dtb differ diff --git a/fdts/fvp-foundation-gicv2-psci.dts b/fdts/fvp-foundation-gicv2-psci.dts index 8f3de9df..8d354b37 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 564d223f..58bb9b3a 100644 Binary files a/fdts/fvp-foundation-gicv2legacy-psci.dtb and b/fdts/fvp-foundation-gicv2legacy-psci.dtb differ diff --git a/fdts/fvp-foundation-gicv2legacy-psci.dts b/fdts/fvp-foundation-gicv2legacy-psci.dts index 951da06d..2a694f4f 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 7692c618..1a841f3c 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 00000000..fd41c8ae --- /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 fd41c8ae..9d29e481 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>; - }; - - reboot@0 { - compatible = "arm,vexpress-reboot"; - arm,vexpress-sysreg,func = <9 0>; - }; + /* + * Not used - Superseded by PSCI sys_poweroff + * + * shutdown@0 { + * compatible = "arm,vexpress-shutdown"; + * arm,vexpress-sysreg,func = <8 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 00000000..7ba575ea --- /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 7ba575ea..6aa40ff4 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>; - }; - - reboot@0 { - compatible = "arm,vexpress-reboot"; - arm,vexpress-sysreg,func = <9 0>; - }; + /* + * Not used - Superseded by PSCI sys_poweroff + * + * shutdown@0 { + * compatible = "arm,vexpress-shutdown"; + * arm,vexpress-sysreg,func = <8 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 77f406d2..6512dfb5 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 @@ typedef struct plat_pm_ops { 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 @@ typedef struct spd_pm_ops { 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_affinity_info(unsigned long, unsigned int); 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 c0b191f7..c6578b78 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 @@ typedef struct tsp_vectors { 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 b2c26fc7..9914f69a 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 b7e49a27..87ef54c6 100644 --- a/plat/fvp/fvp_pm.c +++ b/plat/fvp/fvp_pm.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -364,17 +365,41 @@ int fvp_affinst_suspend_finish(unsigned long mpidr, 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 22f302a2..b8d4569c 100644 --- a/services/spd/tspd/tspd_main.c +++ b/services/spd/tspd/tspd_main.c @@ -437,6 +437,8 @@ uint64_t tspd_smc_handler(uint32_t smc_fid, */ 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 e9e037a1..16552853 100644 --- a/services/spd/tspd/tspd_pm.c +++ b/services/spd/tspd/tspd_pm.c @@ -192,17 +192,60 @@ static int32_t tspd_cpu_migrate_info(uint64_t *resident_cpu) return TSP_MIGRATE_INFO; } +/******************************************************************************* + * 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 56f3daf2..2fd1764c 100644 --- a/services/std_svc/psci/psci_common.c +++ b/services/std_svc/psci/psci_common.c @@ -446,3 +446,33 @@ void psci_register_spd_pm_hook(const spd_pm_ops_t *pm) { 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 21968d9b..0ffa5d73 100644 --- a/services/std_svc/psci/psci_main.c +++ b/services/std_svc/psci/psci_main.c @@ -250,6 +250,14 @@ uint64_t psci_smc_handler(uint32_t smc_fid, 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 b47bf859..4bf9107f 100644 --- a/services/std_svc/psci/psci_private.h +++ b/services/std_svc/psci/psci_private.h @@ -99,6 +99,7 @@ void psci_acquire_afflvl_locks(int start_afflvl, 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 @@ unsigned int psci_afflvl_suspend_finish(int, int); 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 00000000..f2520b6d --- /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 +#include +#include +#include +#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 */ +}