diff options
| author | Hongbo Zhang <hongbo.zhang@nxp.com> | 2016-07-21 18:09:38 +0800 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2016-07-26 09:02:49 -0700 |
| commit | aeb901f2a6c19e399354345ad1acd67420401a10 (patch) | |
| tree | 0162707ee59907b7d1d133545cb8d293a7dab453 /board/freescale/ls1021aqds | |
| parent | 7e742c276dea455d9439caa3f6bc3f4e9a1b5796 (diff) | |
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>
Diffstat (limited to 'board/freescale/ls1021aqds')
| -rw-r--r-- | board/freescale/ls1021aqds/Makefile | 1 | ||||
| -rw-r--r-- | board/freescale/ls1021aqds/psci.S | 33 |
2 files changed, 34 insertions, 0 deletions
diff --git a/board/freescale/ls1021aqds/Makefile b/board/freescale/ls1021aqds/Makefile index ab0234412c..f0390c129f 100644 --- a/board/freescale/ls1021aqds/Makefile +++ b/board/freescale/ls1021aqds/Makefile @@ -8,3 +8,4 @@ obj-y += ls1021aqds.o obj-y += ddr.o obj-y += eth.o obj-$(CONFIG_FSL_DCU_FB) += dcu.o +obj-$(CONFIG_ARMV7_PSCI) += psci.o diff --git a/board/freescale/ls1021aqds/psci.S b/board/freescale/ls1021aqds/psci.S new file mode 100644 index 0000000000..598168c7b0 --- /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 |