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Commit 50b956f3 authored by Andy Gross's avatar Andy Gross
Browse files

firmware: qcom: scm: Add function stubs for ARM64 



This patch adds stubs for the SCM functions exposed in the QCOM SCM API.

Signed-off-by: default avatarAndy Gross <agross@codeaurora.org>
Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: default avatarBjorn Andersson <bjorn.andersson@sonymobile.com>
parent 6ff33f39

drivers/firmware/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -139,6 +139,14 @@ config QCOM_SCM 
	bool

	depends on ARM || ARM64



config QCOM_SCM_32

	def_bool y

	depends on QCOM_SCM && ARM



config QCOM_SCM_64

	def_bool y

	depends on QCOM_SCM && ARM64



source "drivers/firmware/broadcom/Kconfig"

source "drivers/firmware/google/Kconfig"

source "drivers/firmware/efi/Kconfig"

drivers/firmware/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -13,7 +13,8 @@ obj-$(CONFIG_ISCSI_IBFT_FIND) += iscsi_ibft_find.o 
obj-$(CONFIG_ISCSI_IBFT)	+= iscsi_ibft.o

obj-$(CONFIG_FIRMWARE_MEMMAP)	+= memmap.o

obj-$(CONFIG_QCOM_SCM)		+= qcom_scm.o

obj-$(CONFIG_QCOM_SCM)		+= qcom_scm-32.o

obj-$(CONFIG_QCOM_SCM_64)	+= qcom_scm-64.o

obj-$(CONFIG_QCOM_SCM_32)	+= qcom_scm-32.o

CFLAGS_qcom_scm-32.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1)



obj-y				+= broadcom/

drivers/firmware/qcom_scm-64.c

0 → 100644
+63 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2015, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#include <linux/io.h>

#include <linux/errno.h>

#include <linux/qcom_scm.h>



/**

 * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus

 * @entry: Entry point function for the cpus

 * @cpus: The cpumask of cpus that will use the entry point

 *

 * Set the cold boot address of the cpus. Any cpu outside the supported

 * range would be removed from the cpu present mask.

 */

int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)

{

	return -ENOTSUPP;

}



/**

 * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus

 * @entry: Entry point function for the cpus

 * @cpus: The cpumask of cpus that will use the entry point

 *

 * Set the Linux entry point for the SCM to transfer control to when coming

 * out of a power down. CPU power down may be executed on cpuidle or hotplug.

 */

int __qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus)

{

	return -ENOTSUPP;

}



/**

 * qcom_scm_cpu_power_down() - Power down the cpu

 * @flags - Flags to flush cache

 *

 * This is an end point to power down cpu. If there was a pending interrupt,

 * the control would return from this function, otherwise, the cpu jumps to the

 * warm boot entry point set for this cpu upon reset.

 */

void __qcom_scm_cpu_power_down(u32 flags)

{

}



int __qcom_scm_is_call_available(u32 svc_id, u32 cmd_id)

{

	return -ENOTSUPP;

}



int __qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp)

{

	return -ENOTSUPP;

}