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Commit d67ee519 authored by Lijuan Gao's avatar Lijuan Gao
Browse files

firmware: qcom_scm: Add calls to support MSS restart 



Add SCM calls to support MSS restart for pil modem.

Change-Id: Ic2a62ca9371f299fd750cbff28443b9e67751f8a
Signed-off-by: default avatarLijuan Gao <lijuang@codeaurora.org>
parent 4afb6696

drivers/firmware/qcom_scm.c

+19 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/* Copyright (c) 2010,2015,2020 The Linux Foundation. All rights reserved.

/* Copyright (c) 2010,2015,2020-2021 The Linux Foundation. All rights reserved.

 * Copyright (C) 2015 Linaro Ltd.

 */

#include <linux/platform_device.h>
@@ -264,6 +264,24 @@ int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr, phys_addr_t size) 
}

EXPORT_SYMBOL(qcom_scm_pas_mem_setup);



/**

 * qcom_scm_pas_mss_reset() - MSS restart

 */

int qcom_scm_pas_mss_reset(bool reset)

{

	int ret;



	ret = qcom_scm_clk_enable();

	if (ret)

		return ret;



	ret = __qcom_scm_pas_mss_reset(__scm->dev, reset);

	qcom_scm_clk_disable();



	return ret;

}

EXPORT_SYMBOL(qcom_scm_pas_mss_reset);



/**

 * qcom_scm_pas_auth_and_reset() - Authenticate the given peripheral firmware

 *				   and reset the remote processor

include/linux/qcom_scm.h

+3 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/* Copyright (c) 2010-2015, 2018-2020 The Linux Foundation. All rights reserved.

/* Copyright (c) 2010-2015, 2018-2021 The Linux Foundation. All rights reserved.

 * Copyright (C) 2015 Linaro Ltd.

 */

#ifndef __QCOM_SCM_H
@@ -95,6 +95,7 @@ extern int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, 
				   size_t size);

extern int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,

				  phys_addr_t size);

extern int qcom_scm_pas_mss_reset(bool reset);

extern int qcom_scm_pas_auth_and_reset(u32 peripheral);

extern int qcom_scm_pas_shutdown(u32 peripheral);

extern int qcom_scm_get_sec_dump_state(u32 *dump_state);
@@ -223,6 +224,7 @@ static inline int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, 
					  size_t size) { return -ENODEV; }

static inline int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,

					 phys_addr_t size) { return -ENODEV; }

static inline int qcom_scm_pas_mss_reset(bool reset) { return -ENODEV; }

static inline int qcom_scm_pas_auth_and_reset(u32 peripheral)

		{ return -ENODEV; }

static inline int qcom_scm_pas_shutdown(u32 peripheral) { return -ENODEV; }