// SPDX-License-Identifier: GPL-2.0+/* * Copyright (C) 2016 Freescale Semiconductor, Inc. * Copyright 2017~2018 NXP *  Author: Dong Aisheng <aisheng.dong@nxp.com> * * File containing client-side RPC functions for the MISC service. These * function are ported to clients that communicate to the SC. * */ #include <linux/firmware/imx/svc/misc.h> struct imx_sc_msg_req_misc_set_ctrl {	struct imx_sc_rpc_msg hdr;	u32 ctrl;	u32 val;	u16 resource;} __packed __aligned(4); struct imx_sc_msg_req_cpu_start {	struct imx_sc_rpc_msg hdr;	u32 address_hi;	u32 address_lo;	u16 resource;	u8 enable;} __packed __aligned(4); struct imx_sc_msg_req_misc_get_ctrl {	struct imx_sc_rpc_msg hdr;	u32 ctrl;	u16 resource;} __packed __aligned(4); struct imx_sc_msg_resp_misc_get_ctrl {	struct imx_sc_rpc_msg hdr;	u32 val;} __packed __aligned(4); /* * This function sets a miscellaneous control value. * * @param[in]     ipc         IPC handle * @param[in]     resource    resource the control is associated with * @param[in]     ctrl        control to change * @param[in]     val         value to apply to the control * * @return Returns 0 for success and < 0 for errors. */ int imx_sc_misc_set_control(struct imx_sc_ipc *ipc, u32 resource,			    u8 ctrl, u32 val){	struct imx_sc_msg_req_misc_set_ctrl msg;	struct imx_sc_rpc_msg *hdr = &msg.hdr; 	hdr->ver = IMX_SC_RPC_VERSION;	hdr->svc = (uint8_t)IMX_SC_RPC_SVC_MISC;	hdr->func = (uint8_t)IMX_SC_MISC_FUNC_SET_CONTROL;	hdr->size = 4; 	msg.ctrl = ctrl;	msg.val = val;	msg.resource = resource; 	return imx_scu_call_rpc(ipc, &msg, true);}EXPORT_SYMBOL(imx_sc_misc_set_control); /* * This function gets a miscellaneous control value. * * @param[in]     ipc         IPC handle * @param[in]     resource    resource the control is associated with * @param[in]     ctrl        control to get * @param[out]    val         pointer to return the control value * * @return Returns 0 for success and < 0 for errors. */ int imx_sc_misc_get_control(struct imx_sc_ipc *ipc, u32 resource,			    u8 ctrl, u32 *val){	struct imx_sc_msg_req_misc_get_ctrl msg;	struct imx_sc_msg_resp_misc_get_ctrl *resp;	struct imx_sc_rpc_msg *hdr = &msg.hdr;	int ret; 	hdr->ver = IMX_SC_RPC_VERSION;	hdr->svc = (uint8_t)IMX_SC_RPC_SVC_MISC;	hdr->func = (uint8_t)IMX_SC_MISC_FUNC_GET_CONTROL;	hdr->size = 3; 	msg.ctrl = ctrl;	msg.resource = resource; 	ret = imx_scu_call_rpc(ipc, &msg, true);	if (ret)		return ret; 	resp = (struct imx_sc_msg_resp_misc_get_ctrl *)&msg;	if (val != NULL)		*val = resp->val; 	return 0;}EXPORT_SYMBOL(imx_sc_misc_get_control); /* * This function starts/stops a CPU identified by @resource * * @param[in]     ipc         IPC handle * @param[in]     resource    resource the control is associated with * @param[in]     enable      true for start, false for stop * @param[in]     phys_addr   initial instruction address to be executed * * @return Returns 0 for success and < 0 for errors. */int imx_sc_pm_cpu_start(struct imx_sc_ipc *ipc, u32 resource,			bool enable, u64 phys_addr){	struct imx_sc_msg_req_cpu_start msg;	struct imx_sc_rpc_msg *hdr = &msg.hdr; 	hdr->ver = IMX_SC_RPC_VERSION;	hdr->svc = IMX_SC_RPC_SVC_PM;	hdr->func = IMX_SC_PM_FUNC_CPU_START;	hdr->size = 4; 	msg.address_hi = phys_addr >> 32;	msg.address_lo = phys_addr;	msg.resource = resource;	msg.enable = enable; 	return imx_scu_call_rpc(ipc, &msg, true);}EXPORT_SYMBOL(imx_sc_pm_cpu_start);