ARMv7: PSCI: ls102xa: add more PSCI v1.0 functions implemention
This patch implements PSCI functions for ls102xa SoC following PSCI v1.0,
they are as the list:
psci_version,
psci_features,
psci_cpu_suspend,
psci_affinity_info,
psci_system_reset,
psci_system_off.
Tested on LS1021aQDS, LS1021aTWR.
Signed-off-by: Wang Dongsheng <dongsheng.wang@nxp.com>
Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls1021aqds/psci.S b/board/freescale/ls1021aqds/psci.S
new file mode 100644
index 0000000..598168c
--- /dev/null
+++ b/board/freescale/ls1021aqds/psci.S
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2016 NXP Semiconductor.
+ * Author: Wang Dongsheng <dongsheng.wang@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+#include <linux/linkage.h>
+
+#include <asm/armv7.h>
+#include <asm/psci.h>
+
+ .pushsection ._secure.text, "ax"
+
+ .arch_extension sec
+
+ .align 5
+
+.globl psci_system_off
+psci_system_off:
+ @ Get QIXIS base address
+ movw r1, #(QIXIS_BASE & 0xffff)
+ movt r1, #(QIXIS_BASE >> 16)
+
+ ldrb r2, [r1, #QIXIS_PWR_CTL]
+ orr r2, r2, #QIXIS_PWR_CTL_POWEROFF
+ strb r2, [r1, #QIXIS_PWR_CTL]
+
+1: wfi
+ b 1b
+
+ .popsection