On 11/25/2016 02:48 AM, Hongbo Zhang wrote:
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 hongbo.zhang@nxp.com Reviewed-by: Tom Rini trini@konsulko.com
arch/arm/cpu/armv8/fsl-layerscape/Makefile | 1 + arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S | 20 ++++++++++++++++++++ board/freescale/ls1043ardb/Kconfig | 9 +++++++++ configs/ls1043ardb_defconfig | 3 +++ 4 files changed, 33 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 51c1cee..423b4b3 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 0000000..86045ac --- /dev/null +++ b/arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S @@ -0,0 +1,20 @@ +/*
- Copyright 2016 Freescale Semiconductor, Inc.
- Author: Hongbo Zhang hongbo.zhang@nxp.com
- SPDX-License-Identifier: GPL-2.0+
- This file implements LS102X platform PSCI SYSTEM-SUSPEND function
- */
+#include <config.h> +#include <linux/linkage.h> +#include <asm/psci.h>
- .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 51818ec..0c596f9 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 RAM for PSCI image"
- depends on ARMV8_PSCI
- default y
- help
PSCI image can be re-located to secure RAM.If enabled, please also define the value for ARMV8_SECURE_BASE,for LS1043ARDB, it is address in OCRAM.endif diff --git a/configs/ls1043ardb_defconfig b/configs/ls1043ardb_defconfig index 79a4eb2..cb189f3 100644 --- a/configs/ls1043ardb_defconfig +++ b/configs/ls1043ardb_defconfig @@ -28,3 +28,6 @@ CONFIG_DM_USB=y CONFIG_USB_XHCI_HCD=y CONFIG_USB_XHCI_DWC3=y CONFIG_USB_STORAGE=y +CONFIG_ARMV8_PSCI=y +CONFIG_ARMV8_PSCI_CPUS_PER_CLUSTER=4 +CONFIG_ARMV8_SECURE_BASE=0x10010000
You enabled this generic PSCI support for LS1043A. How do you use PPA then?
York