From f3570d24791cb7d30363694f5350d3c46e82bad8 Mon Sep 17 00:00:00 2001 From: Jimmy Huang Date: Fri, 31 Jul 2015 17:11:00 +0800 Subject: [PATCH] mediatek/mt8173: Add soc ARM Trusted Firmware support We define a mechanism to pass board specific parameters to BL31. The idea is BL31 doesn't need to have the board revision knowledge, it only needs to process the board specific parameters to initialize and control specific hardware. In this way, we can support different boards with same BL31 binary. [pg: add the code, but don't actually enable the support yet, because it relies on code that still needs to be merged to arm-trusted-firmware.] BRANCH=none BUG=none TEST=booted on oak-rev2 and oak-rev3 boards, and confirmed they got different board arguments in ARM TF Change-Id: I9ea3ce6c8f79dd427be67f30bc940d2038173b81 Signed-off-by: Patrick Georgi Original-Commit-Id: 0f9a4a2776110c5ddc113f0d605d4337d5773ace Original-Change-Id: I985d9555238f5ac5385e126479140b772b36bac8 Original-Signed-off-by: Jimmy Huang Original-Reviewed-on: https://chromium-review.googlesource.com/292678 Original-Commit-Ready: Yidi Lin Original-Tested-by: Yidi Lin Original-Reviewed-by: Julius Werner Reviewed-on: https://review.coreboot.org/13100 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/soc/mediatek/mt8173/Makefile.inc | 5 ++++ src/soc/mediatek/mt8173/bl31_plat_params.c | 30 +++++++++++++++++++ .../mt8173/include/soc/bl31_plat_params.h | 24 +++++++++++++++ 3 files changed, 59 insertions(+) create mode 100644 src/soc/mediatek/mt8173/bl31_plat_params.c create mode 100644 src/soc/mediatek/mt8173/include/soc/bl31_plat_params.h diff --git a/src/soc/mediatek/mt8173/Makefile.inc b/src/soc/mediatek/mt8173/Makefile.inc index e23ccb9700..b35e1f6ea8 100644 --- a/src/soc/mediatek/mt8173/Makefile.inc +++ b/src/soc/mediatek/mt8173/Makefile.inc @@ -73,6 +73,11 @@ ramstage-y += rtc.c ramstage-y += usb.c +ramstage-$(CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE) += bl31_plat_params.c + +BL31_MAKEARGS += PLAT=mt8173 MEDIATEK_MEM_CONFIG=SRAM_192K MEDIATEK_DA9212=1 \ + MEDIATEK_MT6311=1 + ################################################################################ # Generate the actual coreboot bootblock code diff --git a/src/soc/mediatek/mt8173/bl31_plat_params.c b/src/soc/mediatek/mt8173/bl31_plat_params.c new file mode 100644 index 0000000000..025c202f9d --- /dev/null +++ b/src/soc/mediatek/mt8173/bl31_plat_params.c @@ -0,0 +1,30 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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 +#include +#include + +static struct bl31_plat_param *plat_params; + +void register_bl31_param(struct bl31_plat_param *param) +{ + param->next = (void *)plat_params; + plat_params = param; +} + +void *soc_get_bl31_plat_params(bl31_params_t *bl31_params) +{ + return (void *)plat_params; +} diff --git a/src/soc/mediatek/mt8173/include/soc/bl31_plat_params.h b/src/soc/mediatek/mt8173/include/soc/bl31_plat_params.h new file mode 100644 index 0000000000..c1ea885f6d --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/bl31_plat_params.h @@ -0,0 +1,24 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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. + */ +#ifndef __BL31_PLAT_PARAMS_H__ +#define __BL31_PLAT_PARAMS_H__ + +#if IS_ENABLED(CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE) +#include + +void register_bl31_param(struct bl31_plat_param *param); +#endif + +#endif /* __BL31_PLAT_PARAMS_H__ */