diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2017-09-06 20:54:24 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2017-09-06 20:56:29 +0800 |
| commit | ef3f0fc559c355038872549ee2deac32418e42a4 (patch) | |
| tree | 532ed304d7b245b28f0238d45e6b737938ca49e1 | |
| parent | d52b12729a6c7c54cdd213203742b0e5dea0ae27 (diff) | |
i.mx8qm/i.mx8qxp: psci: add power off support
Add system_off pcsi callback to avoid below kernel
message when doing power off:
[11613.953711] reboot: Power down
[11613.958318] systemd-shutdow: 8 output lines suppressed due to ratelimiting
[11613.965285] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00
[11613.965285]
[11613.974441] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.9.11-03354-g0e1
[11613.982369] Hardware name: Freescale i.MX8QXP LPDDR4 ARM2 (DT)
[11613.988216] Call trace:
[11613.990681] [<ffff0000080882bc>] dump_backtrace+0x0/0x1a8
[11613.996092] [<ffff000008088478>] show_stack+0x14/0x1c
[11614.001154] [<ffff0000083aaf98>] dump_stack+0x8c/0xac
[11614.006213] [<ffff000008162aac>] panic+0x124/0x28c
[11614.011016] [<ffff0000080c0b20>] complete_and_exit+0x0/0x20
[11614.016600] [<ffff0000080dc6d8>] SyS_reboot+0x168/0x244
[11614.021829] [<ffff000008082ef0>] el0_svc_naked+0x24/0x28
[11614.027153] Kernel Offset: disabled
[11614.030646] Memory Limit: none
[11614.040755] ---[ end Kernel panic - not syncing: Attempted to kill init! exi0
[11614.040755]
As there is no system power off SCFW API available now, so just
simply do wfi and never return when system_off is called.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
| -rw-r--r-- | plat/freescale/imx8qm/imx8qm_psci.c | 11 | ||||
| -rw-r--r-- | plat/freescale/imx8qxp/imx8qxp_psci.c | 11 |
2 files changed, 22 insertions, 0 deletions
diff --git a/plat/freescale/imx8qm/imx8qm_psci.c b/plat/freescale/imx8qm/imx8qm_psci.c index 7cc80c88..ebc7d08c 100644 --- a/plat/freescale/imx8qm/imx8qm_psci.c +++ b/plat/freescale/imx8qm/imx8qm_psci.c @@ -224,6 +224,16 @@ void __attribute__((noreturn)) imx_system_reset(void) ; } +void __attribute__((noreturn)) imx_system_off(void) +{ + /* + * Never return, no SCFW API is available for + * system poweroff, here just do wfi for now + */ + while (1) + wfi(); +} + 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, @@ -235,6 +245,7 @@ static const plat_psci_ops_t imx_plat_psci_ops = { .pwr_domain_suspend_finish = imx_domain_suspend_finish, .get_sys_suspend_power_state = imx_get_sys_suspend_power_state, .system_reset = imx_system_reset, + .system_off = imx_system_off, }; /* export the platform specific psci ops */ diff --git a/plat/freescale/imx8qxp/imx8qxp_psci.c b/plat/freescale/imx8qxp/imx8qxp_psci.c index 6f2883f4..f235d5ec 100644 --- a/plat/freescale/imx8qxp/imx8qxp_psci.c +++ b/plat/freescale/imx8qxp/imx8qxp_psci.c @@ -201,6 +201,16 @@ void __attribute__((noreturn)) imx_system_reset(void) ; } +void __attribute__((noreturn)) imx_system_off(void) +{ + /* + * Never return, no SCFW API is available for + * system poweroff, here just do wfi for now + */ + while (1) + wfi(); +} + 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, @@ -212,6 +222,7 @@ static const plat_psci_ops_t imx_plat_psci_ops = { .pwr_domain_suspend_finish = imx_domain_suspend_finish, .get_sys_suspend_power_state = imx_get_sys_suspend_power_state, .system_reset = imx_system_reset, + .system_off = imx_system_off, }; /* export the platform specific psci ops */ |