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a561205724
Add plat parameter structs to support BL2 to pass variable-length, variable-type parameters to BL31. The parameters are structured as a link list. During BL31 setup time, we traverse the list to process each parameter. Signed-off-by: kenny liang <kenny.liang@mediatek.com> Change-Id: Ie84cfc9606656fb1d2780a68cadf27e09afa6628
35 lines
765 B
C
35 lines
765 B
C
/*
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* Copyright (c) 2019, MediaTek Inc. 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 <lib/bl_aux_params/bl_aux_params.h>
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#include <common/debug.h>
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#include <plat_params.h>
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#include <string.h>
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static struct bl_aux_gpio_info rst_gpio;
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struct bl_aux_gpio_info *plat_get_mtk_gpio_reset(void)
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{
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return &rst_gpio;
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}
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static bool mtk_aux_param_handler(struct bl_aux_param_header *param)
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{
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/* Store platform parameters for later processing if needed. */
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switch (param->type) {
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case BL_AUX_PARAM_MTK_RESET_GPIO:
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rst_gpio = ((struct bl_aux_param_gpio *)param)->gpio;
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return true;
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}
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return false;
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}
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void params_early_setup(u_register_t plat_param_from_bl2)
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{
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bl_aux_params_parse(plat_param_from_bl2, mtk_aux_param_handler);
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}
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