ARMv8: Add support for poweroff via PSCI
Add support for calling poweroff in case of psci is wired.
Based on the same solution as is used for reset.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Move all logic in to fwcall.c as other ARMs implement poweroff
via PMIC]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/cpu/armv8/fwcall.c b/arch/arm/cpu/armv8/fwcall.c
index 7dfd270..c220267 100644
--- a/arch/arm/cpu/armv8/fwcall.c
+++ b/arch/arm/cpu/armv8/fwcall.c
@@ -1,5 +1,6 @@
/**
* (C) Copyright 2014, Cavium Inc.
+ * (C) Copyright 2017, Xilinx Inc.
*
* SPDX-License-Identifier: GPL-2.0+
**/
@@ -114,6 +115,22 @@
;
}
+#ifdef CONFIG_CMD_POWEROFF
+int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ puts("poweroff ...\n");
+
+ udelay(50000); /* wait 50 ms */
+
+ disable_interrupts();
+
+ psci_system_off();
+
+ /*NOTREACHED*/
+ return 0;
+}
+#endif
+
#ifdef CONFIG_PSCI_RESET
void reset_misc(void)
{