From 473f1fc280505f03a250ac77052b5b0fd51fe590 Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Tue, 15 Nov 2016 17:15:20 +0800 Subject: fsl/ddr: Enable erratum-a009942 workaround for B/T-series Enable ERRATUM_A009942 workaround for B-series and T-series platforms. Signed-off-by: Shengzhou Liu Reviewed-by: York Sun --- arch/powerpc/include/asm/config_mpc85xx.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch') diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 603d6aeadc..8cfc6127a7 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -517,6 +517,7 @@ #define CONFIG_SYS_FSL_ERRATUM_A007186 #define CONFIG_SYS_FSL_ERRATUM_A006593 #define CONFIG_SYS_FSL_ERRATUM_A007798 +#define CONFIG_SYS_FSL_ERRATUM_A009942 #define CONFIG_SYS_FSL_SFP_VER_3_0 #define CONFIG_SYS_FSL_PCI_VER_3_X @@ -557,6 +558,7 @@ #define CONFIG_SYS_FSL_ERRATUM_A006384 #define CONFIG_SYS_FSL_ERRATUM_A007212 #define CONFIG_SYS_FSL_ERRATUM_A004477 +#define CONFIG_SYS_FSL_ERRATUM_A009942 #define CONFIG_SYS_FSL_SFP_VER_3_0 #ifdef CONFIG_ARCH_B4860 @@ -626,6 +628,7 @@ defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022) #define CONFIG_SYS_FSL_SFP_VER_3_0 #define CONFIG_SYS_FSL_ERRATUM_A008378 #define CONFIG_SYS_FSL_ERRATUM_A009663 +#define CONFIG_SYS_FSL_ERRATUM_A009942 #elif defined(CONFIG_ARCH_T1024) || defined(CONFIG_ARCH_T1023) ||\ defined(CONFIG_PPC_T1014) || defined(CONFIG_PPC_T1013) @@ -668,6 +671,7 @@ defined(CONFIG_PPC_T1014) || defined(CONFIG_PPC_T1013) #define CONFIG_SYS_FSL_SFP_VER_3_0 #define CONFIG_SYS_FSL_ERRATUM_A008378 #define CONFIG_SYS_FSL_ERRATUM_A009663 +#define CONFIG_SYS_FSL_ERRATUM_A009942 #elif defined(CONFIG_ARCH_T2080) || defined(CONFIG_ARCH_T2081) #define CONFIG_E6500 @@ -717,6 +721,7 @@ defined(CONFIG_PPC_T1014) || defined(CONFIG_PPC_T1013) #define CONFIG_SYS_FSL_ERRATUM_A006593 #define CONFIG_SYS_FSL_ERRATUM_A007186 #define CONFIG_SYS_FSL_ERRATUM_A006379 +#define CONFIG_SYS_FSL_ERRATUM_A009942 #define ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE #define CONFIG_SYS_FSL_SFP_VER_3_0 -- cgit v1.2.3 From f667d86ef33bd67b6af868b3348f23bd7b074800 Mon Sep 17 00:00:00 2001 From: Hou Zhiqiang Date: Tue, 6 Dec 2016 15:27:48 +0800 Subject: armv8: ls1043ardb: dts: Fix the unit-address of some I2C device nodes The unit-address should be the same as the I2C address of the device. Signed-off-by: Hou Zhiqiang Reviewed-by: York Sun --- arch/arm/dts/fsl-ls1043a-rdb.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/dts/fsl-ls1043a-rdb.dts b/arch/arm/dts/fsl-ls1043a-rdb.dts index 16c5c89d7c..57440750bc 100644 --- a/arch/arm/dts/fsl-ls1043a-rdb.dts +++ b/arch/arm/dts/fsl-ls1043a-rdb.dts @@ -47,12 +47,12 @@ compatible = "adi,adt7461a"; reg = <0x4c>; }; - eeprom@56 { + eeprom@52 { compatible = "at24,24c512"; reg = <0x52>; }; - eeprom@57 { + eeprom@53 { compatible = "at24,24c512"; reg = <0x53>; }; -- cgit v1.2.3 From 4002eab2c2bdbcb730620a12dafab32298c48135 Mon Sep 17 00:00:00 2001 From: Hou Zhiqiang Date: Tue, 6 Dec 2016 15:27:49 +0800 Subject: armv8: ls1043a: dts: Fix the ranges table of IFC node Corrected the ranges table of the IFC node. Signed-off-by: Hou Zhiqiang Reviewed-by: York Sun --- arch/arm/dts/fsl-ls1043a-qds.dtsi | 12 ++++++------ arch/arm/dts/fsl-ls1043a-rdb.dts | 4 ++-- 2 files changed, 8 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/arm/dts/fsl-ls1043a-qds.dtsi b/arch/arm/dts/fsl-ls1043a-qds.dtsi index 2e9f1f917c..21011720dd 100644 --- a/arch/arm/dts/fsl-ls1043a-qds.dtsi +++ b/arch/arm/dts/fsl-ls1043a-qds.dtsi @@ -135,8 +135,8 @@ #size-cells = <1>; /* NOR, NAND Flashes and FPGA on board */ ranges = <0x0 0x0 0x0 0x60000000 0x08000000 - 0x2 0x0 0x0 0x7e800000 0x00010000 - 0x3 0x0 0x0 0x7fb00000 0x00000100>; + 0x1 0x0 0x0 0x7e800000 0x00010000 + 0x2 0x0 0x0 0x7fb00000 0x00000100>; status = "okay"; nor@0,0 { @@ -148,21 +148,21 @@ device-width = <1>; }; - nand@2,0 { + nand@1,0 { compatible = "fsl,ifc-nand"; #address-cells = <1>; #size-cells = <1>; reg = <0x1 0x0 0x10000>; }; - fpga: board-control@3,0 { + fpga: board-control@2,0 { #address-cells = <1>; #size-cells = <1>; compatible = "simple-bus"; - reg = <0x3 0x0 0x0000100>; + reg = <0x2 0x0 0x0000100>; bank-width = <1>; device-width = <1>; - ranges = <0 3 0 0x100>; + ranges = <0 2 0 0x100>; }; }; diff --git a/arch/arm/dts/fsl-ls1043a-rdb.dts b/arch/arm/dts/fsl-ls1043a-rdb.dts index 57440750bc..f271e714b1 100644 --- a/arch/arm/dts/fsl-ls1043a-rdb.dts +++ b/arch/arm/dts/fsl-ls1043a-rdb.dts @@ -69,8 +69,8 @@ #size-cells = <1>; /* NOR, NAND Flashes and FPGA on board */ ranges = <0x0 0x0 0x0 0x60000000 0x08000000 - 0x2 0x0 0x0 0x7e800000 0x00010000 - 0x3 0x0 0x0 0x7fb00000 0x00000100>; + 0x1 0x0 0x0 0x7e800000 0x00010000 + 0x2 0x0 0x0 0x7fb00000 0x00000100>; nor@0,0 { compatible = "cfi-flash"; -- cgit v1.2.3 From 2d16a1a6c9eeb30fa6828f048df06ee9807792d3 Mon Sep 17 00:00:00 2001 From: "macro.wave.z@gmail.com" Date: Thu, 8 Dec 2016 11:58:21 +0800 Subject: ARMv8: LS1043A: change macro CONFIG_ARMV8_PSCI definition NXP/Freescale uses macro CONFIG_ARMV8_PSCI to enable their private PSCI implementation in PPA firmware, but this macro naming too generic, so this patch replaces it with a specic one CONFIG_FSL_PPA_ARMV8_PSCI. And this macro CONFIG_ARMV8_PSCI will be used for a generic PSCI for ARMv8 which will be added in following patchs. Signed-off-by: Hongbo Zhang Reviewed-by: Tom Rini Reviewed-by: York Sun --- arch/arm/cpu/armv8/cpu-dt.c | 2 +- arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 20 ++++++++++++++++++++ arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 3 ++- arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 3 ++- arch/arm/cpu/armv8/sec_firmware.c | 2 +- arch/arm/cpu/armv8/sec_firmware_asm.S | 2 +- arch/arm/include/asm/armv8/sec_firmware.h | 2 +- arch/arm/lib/bootm-fdt.c | 2 +- arch/arm/lib/psci-dt.c | 2 +- 9 files changed, 30 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/arm/cpu/armv8/cpu-dt.c b/arch/arm/cpu/armv8/cpu-dt.c index 9ffb49c37c..659ec27aa0 100644 --- a/arch/arm/cpu/armv8/cpu-dt.c +++ b/arch/arm/cpu/armv8/cpu-dt.c @@ -13,7 +13,7 @@ int psci_update_dt(void *fdt) { #ifdef CONFIG_MP -#if defined(CONFIG_ARMV8_PSCI) +#if defined(CONFIG_FSL_PPA_ARMV8_PSCI) #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT /* * If the PSCI in SEC Firmware didn't work, avoid to update the diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index 6772584a60..d28a422919 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig @@ -44,6 +44,26 @@ config FSL_LSCH3 menu "Layerscape architecture" depends on FSL_LSCH2 || FSL_LSCH3 +menu "Layerscape PPA" +config FSL_LS_PPA + bool "FSL Layerscape PPA firmware support" + depends on ARCH_LS1043A || ARCH_LS1046A + select FSL_PPA_ARMV8_PSCI + help + The FSL Primary Protected Application (PPA) is a software component + which is loaded during boot stage, and then remains resident in RAM + and runs in the TrustZone after boot. + Say y to enable it. + +config FSL_PPA_ARMV8_PSCI + bool "PSCI implementation in PPA firmware" + depends on FSL_LS_PPA + help + This config enables the ARMv8 PSCI implementation in PPA firmware. + This is a private PSCI implementation and different from those + implemented under the common ARMv8 PSCI framework. +endmenu + config SYS_FSL_MMDC bool diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index ffbbd729d4..467d9af920 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c @@ -410,7 +410,8 @@ int arch_early_init_r(void) erratum_a009942_check_cpo(); #endif #ifdef CONFIG_MP -#if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && defined(CONFIG_ARMV8_PSCI) +#if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \ + defined(CONFIG_FSL_PPA_ARMV8_PSCI) /* Check the psci version to determine if the psci is supported */ psci_ver = sec_firmware_support_psci_version(); #endif diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c index 0dae5faad8..c10ccf9063 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c @@ -42,7 +42,8 @@ void ft_fixup_cpu(void *blob) int addr_cells; u64 val, core_id; size_t *boot_code_size = &(__secondary_boot_code_size); -#if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && defined(CONFIG_ARMV8_PSCI) +#if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \ + defined(CONFIG_FSL_PPA_ARMV8_PSCI) int node; u32 psci_ver; diff --git a/arch/arm/cpu/armv8/sec_firmware.c b/arch/arm/cpu/armv8/sec_firmware.c index 2ddd67ef6c..0b973f02f6 100644 --- a/arch/arm/cpu/armv8/sec_firmware.c +++ b/arch/arm/cpu/armv8/sec_firmware.c @@ -209,7 +209,7 @@ __weak bool sec_firmware_is_valid(const void *sec_firmware_img) return true; } -#ifdef CONFIG_ARMV8_PSCI +#ifdef CONFIG_FSL_PPA_ARMV8_PSCI /* * The PSCI_VERSION function is added from PSCI v0.2. When the PSCI * v0.1 received this function, the NOT_SUPPORTED (0xffff_ffff) error diff --git a/arch/arm/cpu/armv8/sec_firmware_asm.S b/arch/arm/cpu/armv8/sec_firmware_asm.S index 1b39f1d322..903195dbce 100644 --- a/arch/arm/cpu/armv8/sec_firmware_asm.S +++ b/arch/arm/cpu/armv8/sec_firmware_asm.S @@ -41,7 +41,7 @@ WEAK(_sec_firmware_entry) ret ENDPROC(_sec_firmware_entry) -#ifdef CONFIG_ARMV8_PSCI +#ifdef CONFIG_FSL_PPA_ARMV8_PSCI ENTRY(_sec_firmware_support_psci_version) mov x0, 0x84000000 mov x1, 0x0 diff --git a/arch/arm/include/asm/armv8/sec_firmware.h b/arch/arm/include/asm/armv8/sec_firmware.h index eb68185fed..a4e144b171 100644 --- a/arch/arm/include/asm/armv8/sec_firmware.h +++ b/arch/arm/include/asm/armv8/sec_firmware.h @@ -14,7 +14,7 @@ int sec_firmware_init(const void *, u32 *, u32 *); int _sec_firmware_entry(const void *, u32 *, u32 *); bool sec_firmware_is_valid(const void *); -#ifdef CONFIG_ARMV8_PSCI +#ifdef CONFIG_FSL_PPA_ARMV8_PSCI unsigned int sec_firmware_support_psci_version(void); unsigned int _sec_firmware_support_psci_version(void); #endif diff --git a/arch/arm/lib/bootm-fdt.c b/arch/arm/lib/bootm-fdt.c index 4481f9e2fa..1615756808 100644 --- a/arch/arm/lib/bootm-fdt.c +++ b/arch/arm/lib/bootm-fdt.c @@ -52,7 +52,7 @@ int arch_fixup_fdt(void *blob) return ret; #endif -#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI) +#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_FSL_PPA_ARMV8_PSCI) ret = psci_update_dt(blob); if (ret) return ret; diff --git a/arch/arm/lib/psci-dt.c b/arch/arm/lib/psci-dt.c index baf6d7083f..41e139e7df 100644 --- a/arch/arm/lib/psci-dt.c +++ b/arch/arm/lib/psci-dt.c @@ -16,7 +16,7 @@ int fdt_psci(void *fdt) { -#if defined(CONFIG_ARMV8_PSCI) || defined(CONFIG_ARMV7_PSCI) +#if defined(CONFIG_FSL_PPA_ARMV8_PSCI) || defined(CONFIG_ARMV7_PSCI) int nodeoff; unsigned int psci_ver = 0; int tmp; -- cgit v1.2.3 From df88cb3b91019e7d7293c73b01a5913a02be9c32 Mon Sep 17 00:00:00 2001 From: "macro.wave.z@gmail.com" Date: Thu, 8 Dec 2016 11:58:22 +0800 Subject: ARMv8: Add secure sections for PSCI text and data This patch adds secure_text, secure_data and secure_stack sections for ARMv8 to hold PSCI text and data, and it is based on the legacy implementation of ARMv7. ARMV8_SECURE_BASE defines the address for PSCI secure sections, ARMV8_PSCI and ARMV8_PSCI_NR_CPUS are firstly used in this patch, so they are introduce here in Kconfig too. Signed-off-by: Hongbo Zhang Reviewed-by: Tom Rini Reviewed-by: York Sun --- arch/arm/config.mk | 3 +- arch/arm/cpu/armv8/Kconfig | 31 +++++++++++++++++ arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 1 + arch/arm/cpu/armv8/u-boot.lds | 57 +++++++++++++++++++++++++++++++ 4 files changed, 91 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 008da39a6c..3a81f131e2 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -121,7 +121,8 @@ endif # limit ourselves to the sections we want in the .bin. ifdef CONFIG_ARM64 -OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn +OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \ + -j .u_boot_list -j .rela.dyn else OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \ -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig index 965a8d129c..edae43de07 100644 --- a/arch/arm/cpu/armv8/Kconfig +++ b/arch/arm/cpu/armv8/Kconfig @@ -40,4 +40,35 @@ config PSCI_RESET Select Y here to make use of PSCI calls for system reset +config ARMV8_PSCI + bool "Enable PSCI support" if EXPERT + default n + help + PSCI is Power State Coordination Interface defined by ARM. + The PSCI in U-boot provides a general framework and each platform + can implement their own specific PSCI functions. + Say Y here to enable PSCI support on ARMv8 platform. + +config ARMV8_PSCI_NR_CPUS + int "Maximum supported CPUs for PSCI" + depends on ARMV8_PSCI + default 4 + help + The maximum number of CPUs supported in the PSCI firmware. + It is no problem to set a larger value than the number of CPUs in + the actual hardware implementation. + +if SYS_HAS_ARMV8_SECURE_BASE + +config ARMV8_SECURE_BASE + hex "Secure address for PSCI image" + depends on ARMV8_PSCI + help + Address for placing the PSCI text, data and stack sections. + If not defined, the PSCI sections are placed together with the u-boot + but platform can choose to place PSCI code image separately in other + places such as some secure RAM built-in SOC etc. + +endif + endif diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index d28a422919..cc0dc889ae 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig @@ -47,6 +47,7 @@ menu "Layerscape architecture" menu "Layerscape PPA" config FSL_LS_PPA bool "FSL Layerscape PPA firmware support" + depends on !ARMV8_PSCI depends on ARCH_LS1043A || ARCH_LS1046A select FSL_PPA_ARMV8_PSCI help diff --git a/arch/arm/cpu/armv8/u-boot.lds b/arch/arm/cpu/armv8/u-boot.lds index fd15ad5963..22195b8834 100644 --- a/arch/arm/cpu/armv8/u-boot.lds +++ b/arch/arm/cpu/armv8/u-boot.lds @@ -8,11 +8,17 @@ * SPDX-License-Identifier: GPL-2.0+ */ +#include +#include + OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64") OUTPUT_ARCH(aarch64) ENTRY(_start) SECTIONS { +#ifdef CONFIG_ARMV8_SECURE_BASE + /DISCARD/ : { *(.rela._secure*) } +#endif . = 0x00000000; . = ALIGN(8); @@ -23,6 +29,57 @@ SECTIONS *(.text*) } +#ifdef CONFIG_ARMV8_PSCI + .__secure_start : +#ifndef CONFIG_ARMV8_SECURE_BASE + ALIGN(CONSTANT(COMMONPAGESIZE)) +#endif + { + KEEP(*(.__secure_start)) + } + +#ifndef CONFIG_ARMV8_SECURE_BASE +#define CONFIG_ARMV8_SECURE_BASE +#define __ARMV8_PSCI_STACK_IN_RAM +#endif + .secure_text CONFIG_ARMV8_SECURE_BASE : + AT(ADDR(.__secure_start) + SIZEOF(.__secure_start)) + { + *(._secure.text) + } + + .secure_data : AT(LOADADDR(.secure_text) + SIZEOF(.secure_text)) + { + *(._secure.data) + } + + .secure_stack ALIGN(ADDR(.secure_data) + SIZEOF(.secure_data), + CONSTANT(COMMONPAGESIZE)) (NOLOAD) : +#ifdef __ARMV8_PSCI_STACK_IN_RAM + AT(ADDR(.secure_stack)) +#else + AT(LOADADDR(.secure_data) + SIZEOF(.secure_data)) +#endif + { + KEEP(*(.__secure_stack_start)) + + . = . + CONFIG_ARMV8_PSCI_NR_CPUS * ARM_PSCI_STACK_SIZE; + + . = ALIGN(CONSTANT(COMMONPAGESIZE)); + + KEEP(*(.__secure_stack_end)) + } + +#ifndef __ARMV8_PSCI_STACK_IN_RAM + . = LOADADDR(.secure_stack); +#endif + + .__secure_end : AT(ADDR(.__secure_end)) { + KEEP(*(.__secure_end)) + LONG(0x1d1071c); /* Must output something to reset LMA */ + } +#endif + . = ALIGN(8); .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } -- cgit v1.2.3 From 5cc8d6682f6bb2934f5303786af6c57e68613a79 Mon Sep 17 00:00:00 2001 From: "macro.wave.z@gmail.com" Date: Thu, 8 Dec 2016 11:58:23 +0800 Subject: ARMv8: Enable SMC instruction PSCI implementation needs the SMC instruction to be enabled. Signed-off-by: Hongbo Zhang Reviewed-by: Tom Rini Reviewed-by: York Sun --- arch/arm/include/asm/macro.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h index 2553e3e349..e1916f7705 100644 --- a/arch/arm/include/asm/macro.h +++ b/arch/arm/include/asm/macro.h @@ -182,11 +182,17 @@ lr .req x30 /* * The next lower exception level is AArch64, 64bit EL2 | HCE | - * SMD | RES1 (Bits[5:4]) | Non-secure EL0/EL1. + * RES1 (Bits[5:4]) | Non-secure EL0/EL1. + * and the SMD depends on requirements. */ +#ifdef CONFIG_ARMV8_PSCI + ldr \tmp, =(SCR_EL3_RW_AARCH64 | SCR_EL3_HCE_EN |\ + SCR_EL3_RES1 | SCR_EL3_NS_EN) +#else ldr \tmp, =(SCR_EL3_RW_AARCH64 | SCR_EL3_HCE_EN |\ SCR_EL3_SMD_DIS | SCR_EL3_RES1 |\ SCR_EL3_NS_EN) +#endif msr scr_el3, \tmp /* Return to the EL2_SP2 mode from EL3 */ -- cgit v1.2.3 From 14bf25d50d934e95ffd7fc1276f9ab1e6c67bfbb Mon Sep 17 00:00:00 2001 From: "macro.wave.z@gmail.com" Date: Thu, 8 Dec 2016 11:58:24 +0800 Subject: ARMv8: Add basic PSCI framework This patch introduces a generic ARMv8 PSCI framework, with all functions returning a dummy ARM_PSCI_RET_NI (Not Implemented), then it is up to each platform to implement their own functions based on this framework. Signed-off-by: Hongbo Zhang Reviewed-by: Tom Rini Reviewed-by: York Sun --- arch/arm/cpu/armv8/Kconfig | 10 ++ arch/arm/cpu/armv8/Makefile | 1 + arch/arm/cpu/armv8/psci.S | 286 ++++++++++++++++++++++++++++++++++++++++++++ arch/arm/include/asm/psci.h | 15 +++ 4 files changed, 312 insertions(+) create mode 100644 arch/arm/cpu/armv8/psci.S (limited to 'arch') diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig index edae43de07..22dce88076 100644 --- a/arch/arm/cpu/armv8/Kconfig +++ b/arch/arm/cpu/armv8/Kconfig @@ -58,6 +58,16 @@ config ARMV8_PSCI_NR_CPUS It is no problem to set a larger value than the number of CPUs in the actual hardware implementation. +config ARMV8_PSCI_CPUS_PER_CLUSTER + int "Number of CPUs per cluster" + depends on ARMV8_PSCI + default 0 + help + The number of CPUs per cluster, suppose each cluster has same number + of CPU cores, platforms with asymmetric clusters don't apply here. + A value 0 or no definition of it works for single cluster system. + System with multi-cluster should difine their own exact value. + if SYS_HAS_ARMV8_SECURE_BASE config ARMV8_SECURE_BASE diff --git a/arch/arm/cpu/armv8/Makefile b/arch/arm/cpu/armv8/Makefile index dea14657d9..28ba786207 100644 --- a/arch/arm/cpu/armv8/Makefile +++ b/arch/arm/cpu/armv8/Makefile @@ -25,3 +25,4 @@ obj-$(CONFIG_FSL_LAYERSCAPE) += fsl-layerscape/ obj-$(CONFIG_S32V234) += s32v234/ obj-$(CONFIG_ARCH_ZYNQMP) += zynqmp/ obj-$(CONFIG_TARGET_HIKEY) += hisilicon/ +obj-$(CONFIG_ARMV8_PSCI) += psci.o diff --git a/arch/arm/cpu/armv8/psci.S b/arch/arm/cpu/armv8/psci.S new file mode 100644 index 0000000000..43d5d6bde0 --- /dev/null +++ b/arch/arm/cpu/armv8/psci.S @@ -0,0 +1,286 @@ +/* + * Copyright 2016 Freescale Semiconductor, Inc. + * Author: Hongbo Zhang + * + * SPDX-License-Identifier: GPL-2.0+ + * This file implements LS102X platform PSCI SYSTEM-SUSPEND function + */ + +#include +#include +#include + +/* Default PSCI function, return -1, Not Implemented */ +#define PSCI_DEFAULT(__fn) \ + ENTRY(__fn); \ + mov w0, #ARM_PSCI_RET_NI; \ + ret; \ + ENDPROC(__fn); \ + .weak __fn + +/* PSCI function and ID table definition*/ +#define PSCI_TABLE(__id, __fn) \ + .word __id; \ + .word __fn + +.pushsection ._secure.text, "ax" + +/* 32 bits PSCI default functions */ +PSCI_DEFAULT(psci_version) +PSCI_DEFAULT(psci_cpu_suspend) +PSCI_DEFAULT(psci_cpu_off) +PSCI_DEFAULT(psci_cpu_on) +PSCI_DEFAULT(psci_affinity_info) +PSCI_DEFAULT(psci_migrate) +PSCI_DEFAULT(psci_migrate_info_type) +PSCI_DEFAULT(psci_migrate_info_up_cpu) +PSCI_DEFAULT(psci_system_off) +PSCI_DEFAULT(psci_system_reset) +PSCI_DEFAULT(psci_features) +PSCI_DEFAULT(psci_cpu_freeze) +PSCI_DEFAULT(psci_cpu_default_suspend) +PSCI_DEFAULT(psci_node_hw_state) +PSCI_DEFAULT(psci_system_suspend) +PSCI_DEFAULT(psci_set_suspend_mode) +PSCI_DEFAULT(psi_stat_residency) +PSCI_DEFAULT(psci_stat_count) + +.align 3 +_psci_32_table: +PSCI_TABLE(ARM_PSCI_FN_CPU_SUSPEND, psci_cpu_suspend) +PSCI_TABLE(ARM_PSCI_FN_CPU_OFF, psci_cpu_off) +PSCI_TABLE(ARM_PSCI_FN_CPU_ON, psci_cpu_on) +PSCI_TABLE(ARM_PSCI_FN_MIGRATE, psci_migrate) +PSCI_TABLE(ARM_PSCI_0_2_FN_PSCI_VERSION, psci_version) +PSCI_TABLE(ARM_PSCI_0_2_FN_CPU_SUSPEND, psci_cpu_suspend) +PSCI_TABLE(ARM_PSCI_0_2_FN_CPU_OFF, psci_cpu_off) +PSCI_TABLE(ARM_PSCI_0_2_FN_CPU_ON, psci_cpu_on) +PSCI_TABLE(ARM_PSCI_0_2_FN_AFFINITY_INFO, psci_affinity_info) +PSCI_TABLE(ARM_PSCI_0_2_FN_MIGRATE, psci_migrate) +PSCI_TABLE(ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE, psci_migrate_info_type) +PSCI_TABLE(ARM_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU, psci_migrate_info_up_cpu) +PSCI_TABLE(ARM_PSCI_0_2_FN_SYSTEM_OFF, psci_system_off) +PSCI_TABLE(ARM_PSCI_0_2_FN_SYSTEM_RESET, psci_system_reset) +PSCI_TABLE(ARM_PSCI_1_0_FN_PSCI_FEATURES, psci_features) +PSCI_TABLE(ARM_PSCI_1_0_FN_CPU_FREEZE, psci_cpu_freeze) +PSCI_TABLE(ARM_PSCI_1_0_FN_CPU_DEFAULT_SUSPEND, psci_cpu_default_suspend) +PSCI_TABLE(ARM_PSCI_1_0_FN_NODE_HW_STATE, psci_node_hw_state) +PSCI_TABLE(ARM_PSCI_1_0_FN_SYSTEM_SUSPEND, psci_system_suspend) +PSCI_TABLE(ARM_PSCI_1_0_FN_SET_SUSPEND_MODE, psci_set_suspend_mode) +PSCI_TABLE(ARM_PSCI_1_0_FN_STAT_RESIDENCY, psi_stat_residency) +PSCI_TABLE(ARM_PSCI_1_0_FN_STAT_COUNT, psci_stat_count) +PSCI_TABLE(0, 0) + +/* 64 bits PSCI default functions */ +PSCI_DEFAULT(psci_cpu_suspend_64) +PSCI_DEFAULT(psci_cpu_on_64) +PSCI_DEFAULT(psci_affinity_info_64) +PSCI_DEFAULT(psci_migrate_64) +PSCI_DEFAULT(psci_migrate_info_up_cpu_64) +PSCI_DEFAULT(psci_cpu_default_suspend_64) +PSCI_DEFAULT(psci_node_hw_state_64) +PSCI_DEFAULT(psci_system_suspend_64) +PSCI_DEFAULT(psci_stat_residency_64) +PSCI_DEFAULT(psci_stat_count_64) + +.align 3 +_psci_64_table: +PSCI_TABLE(ARM_PSCI_0_2_FN64_CPU_SUSPEND, psci_cpu_suspend_64) +PSCI_TABLE(ARM_PSCI_0_2_FN64_CPU_ON, psci_cpu_on_64) +PSCI_TABLE(ARM_PSCI_0_2_FN64_AFFINITY_INFO, psci_affinity_info_64) +PSCI_TABLE(ARM_PSCI_0_2_FN64_MIGRATE, psci_migrate_64) +PSCI_TABLE(ARM_PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU, psci_migrate_info_up_cpu_64) +PSCI_TABLE(ARM_PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND, psci_cpu_default_suspend_64) +PSCI_TABLE(ARM_PSCI_1_0_FN64_NODE_HW_STATE, psci_node_hw_state_64) +PSCI_TABLE(ARM_PSCI_1_0_FN64_SYSTEM_SUSPEND, psci_system_suspend_64) +PSCI_TABLE(ARM_PSCI_1_0_FN64_STAT_RESIDENCY, psci_stat_residency_64) +PSCI_TABLE(ARM_PSCI_1_0_FN64_STAT_COUNT, psci_stat_count_64) +PSCI_TABLE(0, 0) + +.macro psci_enter + /* PSCI call is Fast Call(atomic), so mask DAIF */ + mrs x15, DAIF + stp x15, xzr, [sp, #-16]! + ldr x15, =0x3C0 + msr DAIF, x15 + /* SMC convention, x18 ~ x30 should be saved by callee */ + stp x29, x30, [sp, #-16]! + stp x27, x28, [sp, #-16]! + stp x25, x26, [sp, #-16]! + stp x23, x24, [sp, #-16]! + stp x21, x22, [sp, #-16]! + stp x19, x20, [sp, #-16]! + mrs x15, elr_el3 + stp x18, x15, [sp, #-16]! +.endm + +.macro psci_return + /* restore registers */ + ldp x18, x15, [sp], #16 + msr elr_el3, x15 + ldp x19, x20, [sp], #16 + ldp x21, x22, [sp], #16 + ldp x23, x24, [sp], #16 + ldp x25, x26, [sp], #16 + ldp x27, x28, [sp], #16 + ldp x29, x30, [sp], #16 + /* restore DAIF */ + ldp x15, xzr, [sp], #16 + msr DAIF, x15 + eret +.endm + +/* Caller must put PSCI function-ID table base in x9 */ +handle_psci: + psci_enter +1: ldr x10, [x9] /* Load PSCI function table */ + ubfx x11, x10, #32, #32 + ubfx x10, x10, #0, #32 + cbz x10, 3f /* If reach the end, bail out */ + cmp x10, x0 + b.eq 2f /* PSCI function found */ + add x9, x9, #8 /* If not match, try next entry */ + b 1b + +2: blr x11 /* Call PSCI function */ + psci_return + +3: mov x0, #ARM_PSCI_RET_NI + psci_return + +unknown_smc_id: + ldr x0, =0xFFFFFFFF + eret + +handle_smc32: + /* SMC function ID 0x84000000-0x8400001F: 32 bits PSCI */ + ldr w9, =0x8400001F + cmp w0, w9 + b.gt unknown_smc_id + ldr w9, =0x84000000 + cmp w0, w9 + b.lt unknown_smc_id + + adr x9, _psci_32_table + b handle_psci + +handle_smc64: + /* check SMC32 or SMC64 calls */ + ubfx x9, x0, #30, #1 + cbz x9, handle_smc32 + + /* SMC function ID 0xC4000000-0xC400001F: 64 bits PSCI */ + ldr x9, =0xC400001F + cmp x0, x9 + b.gt unknown_smc_id + ldr x9, =0xC4000000 + cmp x0, x9 + b.lt unknown_smc_id + + adr x9, _psci_64_table + b handle_psci + +/* + * Get CPU ID from MPIDR, suppose every cluster has same number of CPU cores, + * Platform with asymmetric clusters should implement their own interface. + * In case this function being called by other platform's C code, the ARM + * Architecture Procedure Call Standard is considered, e.g. register X0 is + * used for the return value, while in this PSCI environment, X0 usually holds + * the SMC function identifier, so X0 should be saved by caller function. + */ +ENTRY(psci_get_cpu_id) +#ifdef CONFIG_ARMV8_PSCI_CPUS_PER_CLUSTER + mrs x9, MPIDR_EL1 + ubfx x9, x9, #8, #8 + ldr x10, =CONFIG_ARMV8_PSCI_CPUS_PER_CLUSTER + mul x9, x10, x9 +#else + mov x9, xzr +#endif + mrs x10, MPIDR_EL1 + ubfx x10, x10, #0, #8 + add x0, x10, x9 + ret +ENDPROC(psci_get_cpu_id) +.weak psci_get_cpu_id + +/* CPU ID input in x0, stack top output in x0*/ +LENTRY(psci_get_cpu_stack_top) + adr x9, __secure_stack_end + lsl x0, x0, #ARM_PSCI_STACK_SHIFT + sub x0, x9, x0 + ret +ENDPROC(psci_get_cpu_stack_top) + +unhandled_exception: + b unhandled_exception /* simply dead loop */ + +handle_sync: + mov x15, x30 + mov x14, x0 + + bl psci_get_cpu_id + bl psci_get_cpu_stack_top + mov x9, #1 + msr spsel, x9 + mov sp, x0 + + mov x0, x14 + mov x30, x15 + + mrs x9, esr_el3 + ubfx x9, x9, #26, #6 + cmp x9, #0x13 + b.eq handle_smc32 + cmp x9, #0x17 + b.eq handle_smc64 + + b unhandled_exception + + .align 11 + .globl el3_exception_vectors +el3_exception_vectors: + b unhandled_exception /* Sync, Current EL using SP0 */ + .align 7 + b unhandled_exception /* IRQ, Current EL using SP0 */ + .align 7 + b unhandled_exception /* FIQ, Current EL using SP0 */ + .align 7 + b unhandled_exception /* SError, Current EL using SP0 */ + .align 7 + b unhandled_exception /* Sync, Current EL using SPx */ + .align 7 + b unhandled_exception /* IRQ, Current EL using SPx */ + .align 7 + b unhandled_exception /* FIQ, Current EL using SPx */ + .align 7 + b unhandled_exception /* SError, Current EL using SPx */ + .align 7 + b handle_sync /* Sync, Lower EL using AArch64 */ + .align 7 + b unhandled_exception /* IRQ, Lower EL using AArch64 */ + .align 7 + b unhandled_exception /* FIQ, Lower EL using AArch64 */ + .align 7 + b unhandled_exception /* SError, Lower EL using AArch64 */ + .align 7 + b unhandled_exception /* Sync, Lower EL using AArch32 */ + .align 7 + b unhandled_exception /* IRQ, Lower EL using AArch32 */ + .align 7 + b unhandled_exception /* FIQ, Lower EL using AArch32 */ + .align 7 + b unhandled_exception /* SError, Lower EL using AArch32 */ + +ENTRY(psci_setup_vectors) + adr x0, el3_exception_vectors + msr vbar_el3, x0 + ret +ENDPROC(psci_setup_vectors) + +ENTRY(psci_arch_init) + ret +ENDPROC(psci_arch_init) +.weak psci_arch_init + +.popsection diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h index 9f1f779868..ac8b00d6fc 100644 --- a/arch/arm/include/asm/psci.h +++ b/arch/arm/include/asm/psci.h @@ -45,6 +45,9 @@ #define ARM_PSCI_0_2_FN_BASE 0x84000000 #define ARM_PSCI_0_2_FN(n) (ARM_PSCI_0_2_FN_BASE + (n)) +#define ARM_PSCI_0_2_FN64_BASE 0xC4000000 +#define ARM_PSCI_0_2_FN64(n) (ARM_PSCI_0_2_FN64_BASE + (n)) + #define ARM_PSCI_0_2_FN_PSCI_VERSION ARM_PSCI_0_2_FN(0) #define ARM_PSCI_0_2_FN_CPU_SUSPEND ARM_PSCI_0_2_FN(1) #define ARM_PSCI_0_2_FN_CPU_OFF ARM_PSCI_0_2_FN(2) @@ -56,6 +59,12 @@ #define ARM_PSCI_0_2_FN_SYSTEM_OFF ARM_PSCI_0_2_FN(8) #define ARM_PSCI_0_2_FN_SYSTEM_RESET ARM_PSCI_0_2_FN(9) +#define ARM_PSCI_0_2_FN64_CPU_SUSPEND ARM_PSCI_0_2_FN64(1) +#define ARM_PSCI_0_2_FN64_CPU_ON ARM_PSCI_0_2_FN64(3) +#define ARM_PSCI_0_2_FN64_AFFINITY_INFO ARM_PSCI_0_2_FN64(4) +#define ARM_PSCI_0_2_FN64_MIGRATE ARM_PSCI_0_2_FN64(5) +#define ARM_PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU ARM_PSCI_0_2_FN64(7) + /* PSCI 1.0 interface */ #define ARM_PSCI_1_0_FN_PSCI_FEATURES ARM_PSCI_0_2_FN(10) #define ARM_PSCI_1_0_FN_CPU_FREEZE ARM_PSCI_0_2_FN(11) @@ -66,6 +75,12 @@ #define ARM_PSCI_1_0_FN_STAT_RESIDENCY ARM_PSCI_0_2_FN(16) #define ARM_PSCI_1_0_FN_STAT_COUNT ARM_PSCI_0_2_FN(17) +#define ARM_PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND ARM_PSCI_0_2_FN64(12) +#define ARM_PSCI_1_0_FN64_NODE_HW_STATE ARM_PSCI_0_2_FN64(13) +#define ARM_PSCI_1_0_FN64_SYSTEM_SUSPEND ARM_PSCI_0_2_FN64(14) +#define ARM_PSCI_1_0_FN64_STAT_RESIDENCY ARM_PSCI_0_2_FN64(16) +#define ARM_PSCI_1_0_FN64_STAT_COUNT ARM_PSCI_0_2_FN64(17) + /* 1KB stack per core */ #define ARM_PSCI_STACK_SHIFT 10 #define ARM_PSCI_STACK_SIZE (1 << ARM_PSCI_STACK_SHIFT) -- cgit v1.2.3 From 9a561753ce48def18dbc4aa278c685c93ed0a77d Mon Sep 17 00:00:00 2001 From: "macro.wave.z@gmail.com" Date: Thu, 8 Dec 2016 11:58:25 +0800 Subject: ARMv8: Setup PSCI memory and device tree Newly add ARMv8 PSCI needs to be initialized, be copied or reserved in right place, this patch does all the setup steps. Signed-off-by: Hongbo Zhang Reviewed-by: Tom Rini Reviewed-by: York Sun --- arch/arm/cpu/armv8/cpu-dt.c | 11 ++++++++++- arch/arm/cpu/armv8/cpu.c | 22 ++++++++++++++++++++++ arch/arm/include/asm/secure.h | 2 +- arch/arm/include/asm/system.h | 11 +++++++++++ arch/arm/lib/bootm-fdt.c | 3 ++- arch/arm/lib/bootm.c | 3 +++ arch/arm/lib/psci-dt.c | 5 +++-- 7 files changed, 52 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/cpu/armv8/cpu-dt.c b/arch/arm/cpu/armv8/cpu-dt.c index 659ec27aa0..3a5afe89be 100644 --- a/arch/arm/cpu/armv8/cpu-dt.c +++ b/arch/arm/cpu/armv8/cpu-dt.c @@ -6,6 +6,7 @@ #include #include +#include #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT #include #endif @@ -13,7 +14,8 @@ int psci_update_dt(void *fdt) { #ifdef CONFIG_MP -#if defined(CONFIG_FSL_PPA_ARMV8_PSCI) +#if defined(CONFIG_ARMV8_PSCI) || defined(CONFIG_FSL_PPA_ARMV8_PSCI) + #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT /* * If the PSCI in SEC Firmware didn't work, avoid to update the @@ -25,6 +27,13 @@ int psci_update_dt(void *fdt) return 0; #endif fdt_psci(fdt); + +#if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE) + /* secure code lives in RAM, keep it alive */ + fdt_add_mem_rsv(fdt, (unsigned long)__secure_start, + __secure_end - __secure_start); +#endif + #endif #endif return 0; diff --git a/arch/arm/cpu/armv8/cpu.c b/arch/arm/cpu/armv8/cpu.c index e06c3cc04d..5dcb5e290b 100644 --- a/arch/arm/cpu/armv8/cpu.c +++ b/arch/arm/cpu/armv8/cpu.c @@ -14,6 +14,7 @@ #include #include #include +#include #include int cleanup_before_linux(void) @@ -41,3 +42,24 @@ int cleanup_before_linux(void) return 0; } + +#ifdef CONFIG_ARMV8_PSCI +static void relocate_secure_section(void) +{ +#ifdef CONFIG_ARMV8_SECURE_BASE + size_t sz = __secure_end - __secure_start; + + memcpy((void *)CONFIG_ARMV8_SECURE_BASE, __secure_start, sz); + flush_dcache_range(CONFIG_ARMV8_SECURE_BASE, + CONFIG_ARMV8_SECURE_BASE + sz + 1); + invalidate_icache_all(); +#endif +} + +void armv8_setup_psci(void) +{ + relocate_secure_section(); + secure_ram_addr(psci_setup_vectors)(); + secure_ram_addr(psci_arch_init)(); +} +#endif diff --git a/arch/arm/include/asm/secure.h b/arch/arm/include/asm/secure.h index 5a403bc0f1..d23044a1c3 100644 --- a/arch/arm/include/asm/secure.h +++ b/arch/arm/include/asm/secure.h @@ -6,7 +6,7 @@ #define __secure __attribute__ ((section ("._secure.text"))) #define __secure_data __attribute__ ((section ("._secure.data"))) -#ifdef CONFIG_ARMV7_SECURE_BASE +#if defined(CONFIG_ARMV7_SECURE_BASE) || defined(CONFIG_ARMV8_SECURE_BASE) /* * Warning, horror ahead. * diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 01efc43657..dc4c9914d7 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -237,6 +237,17 @@ void smc_call(struct pt_regs *args); void __noreturn psci_system_reset(void); void __noreturn psci_system_off(void); +#ifdef CONFIG_ARMV8_PSCI +extern char __secure_start[]; +extern char __secure_end[]; +extern char __secure_stack_start[]; +extern char __secure_stack_end[]; + +void armv8_setup_psci(void); +void psci_setup_vectors(void); +void psci_arch_init(void); +#endif + #endif /* __ASSEMBLY__ */ #else /* CONFIG_ARM64 */ diff --git a/arch/arm/lib/bootm-fdt.c b/arch/arm/lib/bootm-fdt.c index 1615756808..e261d4febf 100644 --- a/arch/arm/lib/bootm-fdt.c +++ b/arch/arm/lib/bootm-fdt.c @@ -52,7 +52,8 @@ int arch_fixup_fdt(void *blob) return ret; #endif -#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_FSL_PPA_ARMV8_PSCI) +#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI) || \ + defined(CONFIG_FSL_PPA_ARMV8_PSCI) ret = psci_update_dt(blob); if (ret) return ret; diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index 4eee13a59c..43cc83ec95 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -316,6 +316,9 @@ static void boot_jump_linux(bootm_headers_t *images, int flag) announce_and_cleanup(fake); if (!fake) { +#ifdef CONFIG_ARMV8_PSCI + armv8_setup_psci(); +#endif do_nonsec_virt_switch(); update_os_arch_secondary_cores(images->os.arch); diff --git a/arch/arm/lib/psci-dt.c b/arch/arm/lib/psci-dt.c index 41e139e7df..45af037f0a 100644 --- a/arch/arm/lib/psci-dt.c +++ b/arch/arm/lib/psci-dt.c @@ -16,7 +16,8 @@ int fdt_psci(void *fdt) { -#if defined(CONFIG_FSL_PPA_ARMV8_PSCI) || defined(CONFIG_ARMV7_PSCI) +#if defined(CONFIG_ARMV7_PSCI) || defined(CONFIG_ARMV8_PSCI) || \ + defined(CONFIG_FSL_PPA_ARMV8_PSCI) int nodeoff; unsigned int psci_ver = 0; int tmp; @@ -65,7 +66,7 @@ int fdt_psci(void *fdt) init_psci_node: #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT psci_ver = sec_firmware_support_psci_version(); -#elif defined(CONFIG_ARMV7_PSCI_1_0) +#elif defined(CONFIG_ARMV7_PSCI_1_0) || defined(CONFIG_ARMV8_PSCI) psci_ver = ARM_PSCI_VER_1_0; #endif switch (psci_ver) { -- cgit v1.2.3 From c151cb5b516e609a0846bd392d6207a77b66a7ff Mon Sep 17 00:00:00 2001 From: "macro.wave.z@gmail.com" Date: Thu, 8 Dec 2016 11:58:26 +0800 Subject: ARMv8: LS1043A: Enable LS1043A default PSCI support A most basic PSCI implementation with only one psci_version is added for LS1043A, this can verify the generic PSCI framework, and more platform specific implementation will be added later. Signed-off-by: Hongbo Zhang Reviewed-by: Tom Rini Reviewed-by: York Sun --- arch/arm/cpu/armv8/fsl-layerscape/Makefile | 1 + arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) create mode 100644 arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S (limited to 'arch') diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Makefile b/arch/arm/cpu/armv8/fsl-layerscape/Makefile index 51c1ceeb83..423b4b39a8 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Makefile +++ b/arch/arm/cpu/armv8/fsl-layerscape/Makefile @@ -28,6 +28,7 @@ endif ifneq ($(CONFIG_LS1043A),) obj-$(CONFIG_SYS_HAS_SERDES) += ls1043a_serdes.o +obj-$(CONFIG_ARMV8_PSCI) += ls1043a_psci.o endif ifneq ($(CONFIG_ARCH_LS1012A),) diff --git a/arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S b/arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S new file mode 100644 index 0000000000..86045ac831 --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S @@ -0,0 +1,20 @@ +/* + * Copyright 2016 Freescale Semiconductor, Inc. + * Author: Hongbo Zhang + * + * SPDX-License-Identifier: GPL-2.0+ + * This file implements LS102X platform PSCI SYSTEM-SUSPEND function + */ + +#include +#include +#include + + .pushsection ._secure.text, "ax" + +.globl psci_version +psci_version: + ldr w0, =0x00010000 /* PSCI v1.0 */ + ret + + .popsection -- cgit v1.2.3