diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2018-07-12 10:52:55 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2018-07-12 11:00:41 +0800 |
| commit | 8972694e931df4622cb5844c96ecdd0fe5941235 (patch) | |
| tree | 0e6ee1c7d47bbc90c07826912e0cb718ad2133e0 | |
| parent | bcf50ed0e715974803b47eaf1cc04f2dd1805676 (diff) | |
imx: imx8qx: add system off support
Add system power off support for i.MX8QX,
when Linux kernel issues "poweroff" command,
TF-A will send command to inform system
controller to power off whole board according
to board design, tested on i.MX8QX MEK board.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
| -rw-r--r-- | plat/imx/common/imx8_psci.c | 22 | ||||
| -rw-r--r-- | plat/imx/common/include/plat_imx8.h | 1 | ||||
| -rw-r--r-- | plat/imx/imx8qx/imx8qx_psci.c | 1 | ||||
| -rw-r--r-- | plat/imx/imx8qx/platform.mk | 1 |
4 files changed, 25 insertions, 0 deletions
diff --git a/plat/imx/common/imx8_psci.c b/plat/imx/common/imx8_psci.c new file mode 100644 index 00000000..0b0dcb57 --- /dev/null +++ b/plat/imx/common/imx8_psci.c @@ -0,0 +1,22 @@ +/* + * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <arch_helpers.h> +#include <debug.h> +#include <plat_imx8.h> +#include <sci/sci.h> +#include <stdbool.h> + +void __dead2 imx_system_off(void) +{ + sc_pm_set_sys_power_mode(ipc_handle, SC_PM_PW_MODE_OFF); + wfi(); + ERROR("power off failed.\n"); + panic(); +} + + diff --git a/plat/imx/common/include/plat_imx8.h b/plat/imx/common/include/plat_imx8.h index 27d4c376..640d60e7 100644 --- a/plat/imx/common/include/plat_imx8.h +++ b/plat/imx/common/include/plat_imx8.h @@ -17,4 +17,5 @@ void plat_gic_cpuif_enable(void); void plat_gic_cpuif_disable(void); void plat_gic_pcpu_init(void); +void __dead2 imx_system_off(void); #endif /*__PLAT_IMX8_H__ */ diff --git a/plat/imx/imx8qx/imx8qx_psci.c b/plat/imx/imx8qx/imx8qx_psci.c index 47233dc8..1e8f7fa4 100644 --- a/plat/imx/imx8qx/imx8qx_psci.c +++ b/plat/imx/imx8qx/imx8qx_psci.c @@ -64,6 +64,7 @@ static const plat_psci_ops_t imx_plat_psci_ops = { .pwr_domain_on = imx_pwr_domain_on, .pwr_domain_on_finish = imx_pwr_domain_on_finish, .validate_ns_entrypoint = imx_validate_ns_entrypoint, + .system_off = imx_system_off, }; int plat_setup_psci_ops(uintptr_t sec_entrypoint, diff --git a/plat/imx/imx8qx/platform.mk b/plat/imx/imx8qx/platform.mk index c16ce6e6..7d6e3fdf 100644 --- a/plat/imx/imx8qx/platform.mk +++ b/plat/imx/imx8qx/platform.mk @@ -20,6 +20,7 @@ BL31_SOURCES += plat/imx/common/lpuart_console.S \ plat/imx/imx8qx/imx8qx_bl31_setup.c \ plat/imx/imx8qx/imx8qx_psci.c \ plat/imx/common/imx8_topology.c \ + plat/imx/common/imx8_psci.c \ lib/xlat_tables/xlat_tables_common.c \ lib/xlat_tables/aarch64/xlat_tables.c \ lib/cpus/aarch64/cortex_a35.S \ |