u-boot/board/freescale/ls1021aqds/psci.S

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright 2016 NXP Semiconductor.
 * Author: Wang Dongsheng <dongsheng.wang@freescale.com>
 */

#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
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 21:58:06 +00:00			`/* SPDX-License-Identifier: GPL-2.0+ */`
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> 2016-07-21 10:09:38 +00:00			`/*`
			`* Copyright 2016 NXP Semiconductor.`
			`* Author: Wang Dongsheng <dongsheng.wang@freescale.com>`
			`*/`

			`#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`