diff options
| author | Heiko Schocher <hs@denx.de> | 2024-11-23 17:52:45 +0100 |
|---|---|---|
| committer | Fabio Estevam <festevam@gmail.com> | 2024-11-25 23:07:37 -0300 |
| commit | a1766d55e5766fb8fb5723bc599f7dd2cc999f6c (patch) | |
| tree | b1292349eb0d16643d0a41fb6c664d809d20f13c /drivers/misc/imx8/scu_api.c | |
| parent | 48380f9b2a12e3fc6339d6af5a154bded769d911 (diff) | |
wdt: imx8qxp: add option to control external PMIC wdt via IMX8 SCU
Driver for a PMIC watchdog timer controlled via Siemens SCU firmware
extensions. Only useful on some Siemens i.MX8-based platforms as
special SCFW is needed which provides the needed SCU API.
Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers/misc/imx8/scu_api.c')
| -rw-r--r-- | drivers/misc/imx8/scu_api.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/misc/imx8/scu_api.c b/drivers/misc/imx8/scu_api.c index 591d71b096a..a40c8badf9a 100644 --- a/drivers/misc/imx8/scu_api.c +++ b/drivers/misc/imx8/scu_api.c @@ -951,6 +951,26 @@ int sc_timer_set_wdog_window(sc_ipc_t ipc, sc_timer_wdog_time_t window) return ret; } +int sc_timer_control_siemens_pmic_wdog(sc_ipc_t ipc, u8 cmd) +{ + struct udevice *dev = gd->arch.scu_dev; + struct sc_rpc_msg_s msg; + int size = sizeof(struct sc_rpc_msg_s); + int ret; + + RPC_VER(&msg) = SC_RPC_VERSION; + RPC_SVC(&msg) = (u8)SC_RPC_SVC_TIMER; + RPC_FUNC(&msg) = (u8)TIMER_FUNC_CTRL_SIEMENS_PMIC_WDOG; + RPC_U8(&msg, 0U) = (u8)cmd; + RPC_SIZE(&msg) = 2U; + + ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size); + if (ret) + printf("%s: res:%d\n", __func__, RPC_R8(&msg)); + + return ret; +} + int sc_seco_authenticate(sc_ipc_t ipc, sc_seco_auth_cmd_t cmd, sc_faddr_t addr) { |