diff options
Diffstat (limited to 'plat/freescale/imx8mq/imx8m_psci.c')
| -rw-r--r-- | plat/freescale/imx8mq/imx8m_psci.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/plat/freescale/imx8mq/imx8m_psci.c b/plat/freescale/imx8mq/imx8m_psci.c index f53c81eb..117188b7 100644 --- a/plat/freescale/imx8mq/imx8m_psci.c +++ b/plat/freescale/imx8mq/imx8m_psci.c @@ -191,6 +191,26 @@ void imx_get_sys_suspend_power_state(psci_power_state_t *req_state) req_state->pwr_domain_state[i] = PLAT_MAX_RET_STATE; } +void __attribute__((noreturn)) imx_system_reset(void) +{ + uintptr_t wdog_base = IMX_WDOG_BASE; + unsigned int val; + + /* WDOG_B reset */ + val = mmio_read_16(wdog_base); +#ifdef IMX_WDOG_B_RESET + val = (val & 0x00FF) | (7 << 2) | (1 << 0); +#else + val = (val & 0x00FF) | (4 << 2) | (1 << 0); +#endif + mmio_write_16(wdog_base, val); + + mmio_write_16(wdog_base + 0x2, 0x5555); + mmio_write_16(wdog_base + 0x2, 0xaaaa); + while (1) + ; +} + 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, @@ -201,6 +221,7 @@ static const plat_psci_ops_t imx_plat_psci_ops = { .pwr_domain_suspend = imx_domain_suspend, .pwr_domain_suspend_finish = imx_domain_suspend_finish, .get_sys_suspend_power_state = imx_get_sys_suspend_power_state, + .system_reset = imx_system_reset, }; /* export the platform specific psci ops */ |