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: [PATCH] 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 + .../cpu/armv8/fsl-layerscape/ls1043a_psci.S | 20 +++++++++++++++++++ board/freescale/ls1043ardb/Kconfig | 9 +++++++++ 3 files changed, 30 insertions(+) create mode 100644 arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S 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 diff --git a/board/freescale/ls1043ardb/Kconfig b/board/freescale/ls1043ardb/Kconfig index 51818ec580..80203a4f3b 100644 --- a/board/freescale/ls1043ardb/Kconfig +++ b/board/freescale/ls1043ardb/Kconfig @@ -13,4 +13,13 @@ config SYS_SOC config SYS_CONFIG_NAME default "ls1043ardb" +config SYS_HAS_ARMV8_SECURE_BASE + bool "Enable secure address for PSCI image" + depends on ARMV8_PSCI + default n + help + PSCI image can be re-located to secure RAM. + If enabled, please also define the value for ARMV8_SECURE_BASE, + for LS1043ARDB, it could be some address in OCRAM. + endif -- 2.25.1