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ARMv8: LS1043A: Enable LS1043A default PSCI support

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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>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
macro.wave.z@gmail.com 2016-12-08 11:58:26 +08:00 committed by York Sun
parent 9a561753ce
commit c151cb5b51
3 changed files with 30 additions and 0 deletions
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1
arch/arm/cpu/armv8/fsl-layerscape/Makefile
View file

@ -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),)

20
arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S Normal file
View file

@ -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

9
board/freescale/ls1043ardb/Kconfig
View file

@ -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