From: Hongbo Zhang <hongbo.zh...@nxp.com>
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.zh...@nxp.com>
---
arch/arm/cpu/armv8/Kconfig | 3 +++
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 | 1 +
5 files changed, 34 insertions(+)
create mode 100644 arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S
diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig
index 173950d..985bfca 100644
--- a/arch/arm/cpu/armv8/Kconfig
+++ b/arch/arm/cpu/armv8/Kconfig
@@ -51,6 +51,7 @@ config ARMV8_PSCI
config ARMV8_PSCI_NR_CPUS
int "Maximum supported CPUs for PSCI"
depends on ARMV8_PSCI
+ default 4 if TARGET_LS1043ARDB
default 4
help
The maximum number of CPUs supported in the PSCI firmware.
@@ -60,6 +61,7 @@ config ARMV8_PSCI_NR_CPUS
config ARMV8_PSCI_CPUS_PER_CLUSTER
int "Number of CPUs per cluster"
depends on ARMV8_PSCI
+ default 4 if TARGET_LS1043ARDB
default 0
help
The number of CPUs per cluster, suppose each cluster has same number
@@ -72,6 +74,7 @@ if SYS_HAS_ARMV8_SECURE_BASE
config ARMV8_SECURE_BASE
hex "Secure address for PSCI image"
depends on ARMV8_PSCI
+ default 0x10010000 if TARGET_LS1043ARDB
help
Address for placing the PSCI text, data and stack sections.
If not defined, the PSCI sections are placed together with the u-boot
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.zh...@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 7d627af..4bfd0aa 100644
--- a/configs/ls1043ardb_defconfig
+++ b/configs/ls1043ardb_defconfig
@@ -27,3 +27,4 @@ CONFIG_DM_USB=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_DWC3=y
CONFIG_USB_STORAGE=y
+CONFIG_ARMV8_PSCI=y
--
2.1.4
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