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f893160690
In order to allow the MHUv2 driver to be usable with multiple MHUv2 controllers, use the base address of the controller from the platform information instead of the MHUV2_BASE_ADDR macro. Change-Id: I4dbab87b929fb0568935e6c8b339ce67937f8cd1 Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>
40 lines
958 B
C
40 lines
958 B
C
/*
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* Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <platform_def.h>
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#include <arch_helpers.h>
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#include <drivers/arm/css/css_mhu_doorbell.h>
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#include <drivers/arm/css/scmi.h>
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void mhu_ring_doorbell(struct scmi_channel_plat_info *plat_info)
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{
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MHU_RING_DOORBELL(plat_info->db_reg_addr,
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plat_info->db_modify_mask,
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plat_info->db_preserve_mask);
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return;
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}
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void mhuv2_ring_doorbell(struct scmi_channel_plat_info *plat_info)
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{
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uintptr_t mhuv2_base = plat_info->db_reg_addr & MHU_V2_FRAME_BASE_MASK;
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/* wake receiver */
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MHU_V2_ACCESS_REQUEST(mhuv2_base);
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/* wait for receiver to acknowledge its ready */
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while (MHU_V2_IS_ACCESS_READY(mhuv2_base) == 0)
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;
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MHU_RING_DOORBELL(plat_info->db_reg_addr,
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plat_info->db_modify_mask,
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plat_info->db_preserve_mask);
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/* clear the access request for the receiver */
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MHU_V2_CLEAR_REQUEST(mhuv2_base);
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return;
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}
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