diff options
| author | kenny liang <kenny.liang@mediatek.com> | 2019-05-03 16:59:07 +0800 |
|---|---|---|
| committer | kenny liang <kenny.liang@mediatek.com> | 2019-09-10 11:25:29 +0800 |
| commit | a561205724cb188624b5ac6543faa9e44cc1a882 (patch) | |
| tree | 235bb2bddc9a6e7c8510fb2548eca0c1bca07583 /plat/mediatek | |
| parent | 50cd952249fc40461e91b5b388b7f7c79326a49a (diff) | |
mediatek: mt8183: pass platform parameters
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
Diffstat (limited to 'plat/mediatek')
| -rw-r--r-- | plat/mediatek/common/params_setup.c | 35 | ||||
| -rw-r--r-- | plat/mediatek/common/plat_params.h | 17 | ||||
| -rw-r--r-- | plat/mediatek/mt8183/bl31_plat_setup.c | 3 | ||||
| -rw-r--r-- | plat/mediatek/mt8183/platform.mk | 2 |
4 files changed, 57 insertions, 0 deletions
diff --git a/plat/mediatek/common/params_setup.c b/plat/mediatek/common/params_setup.c new file mode 100644 index 00000000..a9df13e2 --- /dev/null +++ b/plat/mediatek/common/params_setup.c @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2019, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <lib/bl_aux_params/bl_aux_params.h> +#include <common/debug.h> +#include <plat_params.h> +#include <string.h> + +static struct bl_aux_gpio_info rst_gpio; + +struct bl_aux_gpio_info *plat_get_mtk_gpio_reset(void) +{ + return &rst_gpio; +} + +static bool mtk_aux_param_handler(struct bl_aux_param_header *param) +{ + /* Store platform parameters for later processing if needed. */ + switch (param->type) { + case BL_AUX_PARAM_MTK_RESET_GPIO: + rst_gpio = ((struct bl_aux_param_gpio *)param)->gpio; + return true; + } + + return false; +} + +void params_early_setup(u_register_t plat_param_from_bl2) +{ + bl_aux_params_parse(plat_param_from_bl2, mtk_aux_param_handler); +} + diff --git a/plat/mediatek/common/plat_params.h b/plat/mediatek/common/plat_params.h new file mode 100644 index 00000000..828c3dcc --- /dev/null +++ b/plat/mediatek/common/plat_params.h @@ -0,0 +1,17 @@ +/* + * Copyright (c) 2019, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef PLAT_PARAMS_H +#define PLAT_PARAMS_H + +#include <stdint.h> + +#include <export/plat/mediatek/common/plat_params_exp.h> + +struct bl_aux_gpio_info *plat_get_mtk_gpio_reset(void); +void params_early_setup(u_register_t plat_param_from_bl2); + +#endif diff --git a/plat/mediatek/mt8183/bl31_plat_setup.c b/plat/mediatek/mt8183/bl31_plat_setup.c index f20e8acd..ea39ff6f 100644 --- a/plat/mediatek/mt8183/bl31_plat_setup.c +++ b/plat/mediatek/mt8183/bl31_plat_setup.c @@ -18,6 +18,7 @@ #include <mtk_plat_common.h> #include <mtspmc.h> #include <plat_debug.h> +#include <plat_params.h> #include <plat_private.h> #include <platform_def.h> #include <scu.h> @@ -74,6 +75,8 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, { static console_16550_t console; + params_early_setup(arg1); + console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console); NOTICE("MT8183 bl31_setup\n"); diff --git a/plat/mediatek/mt8183/platform.mk b/plat/mediatek/mt8183/platform.mk index 9c2b9645..8fb01510 100644 --- a/plat/mediatek/mt8183/platform.mk +++ b/plat/mediatek/mt8183/platform.mk @@ -31,6 +31,7 @@ BL31_SOURCES += common/desc_image_load.c \ drivers/delay_timer/generic_delay_timer.c \ drivers/gpio/gpio.c \ drivers/ti/uart/aarch64/16550_console.S \ + lib/bl_aux_params/bl_aux_params.c \ lib/cpus/aarch64/aem_generic.S \ lib/cpus/aarch64/cortex_a53.S \ lib/cpus/aarch64/cortex_a73.S \ @@ -38,6 +39,7 @@ BL31_SOURCES += common/desc_image_load.c \ ${MTK_PLAT}/common/mtk_plat_common.c \ ${MTK_PLAT}/common/drivers/pmic_wrap/pmic_wrap_init.c \ ${MTK_PLAT}/common/drivers/rtc/rtc_common.c \ + ${MTK_PLAT}/common/params_setup.c \ ${MTK_PLAT_SOC}/aarch64/plat_helpers.S \ ${MTK_PLAT_SOC}/aarch64/platform_common.c \ ${MTK_PLAT_SOC}/drivers/mcsi/mcsi.c \ |