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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
commit | 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 (patch) | |
tree | bcf648efac40ca6139842707f0eba5a4496a6dd2 /plat/mediatek/mt8195/bl31_plat_setup.c | |
parent | Initial commit. (diff) | |
download | arm-trusted-firmware-upstream.tar.xz arm-trusted-firmware-upstream.zip |
Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plat/mediatek/mt8195/bl31_plat_setup.c')
-rw-r--r-- | plat/mediatek/mt8195/bl31_plat_setup.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/plat/mediatek/mt8195/bl31_plat_setup.c b/plat/mediatek/mt8195/bl31_plat_setup.c new file mode 100644 index 0000000..dff6670 --- /dev/null +++ b/plat/mediatek/mt8195/bl31_plat_setup.c @@ -0,0 +1,117 @@ +/* + * Copyright (c) 2021, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* System Includes */ +#include <assert.h> + +/* Project Includes */ +#include <common/bl_common.h> +#include <common/debug.h> +#include <common/desc_image_load.h> +#include <drivers/generic_delay_timer.h> +#include <drivers/ti/uart/uart_16550.h> +#include <lib/coreboot.h> + +/* Platform Includes */ +#include <emi_mpu.h> +#include <mt_gic_v3.h> +#include <mt_spm.h> +#include <mt_timer.h> +#include <mtk_dcm.h> +#include <mtgpio.h> +#include <plat_params.h> +#include <plat_private.h> + +static entry_point_info_t bl32_ep_info; +static entry_point_info_t bl33_ep_info; + +/******************************************************************************* + * Return a pointer to the 'entry_point_info' structure of the next image for + * the security state specified. BL33 corresponds to the non-secure image type + * while BL32 corresponds to the secure image type. A NULL pointer is returned + * if the image does not exist. + ******************************************************************************/ +entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) +{ + entry_point_info_t *next_image_info; + + next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info; + assert(next_image_info->h.type == PARAM_EP); + + /* None of the images on this platform can have 0x0 as the entrypoint */ + if (next_image_info->pc) { + return next_image_info; + } else { + return NULL; + } +} + +/******************************************************************************* + * Perform any BL31 early platform setup. Here is an opportunity to copy + * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they + * are lost (potentially). This needs to be done before the MMU is initialized + * so that the memory layout can be used while creating page tables. + * BL2 has flushed this information to memory, so we are guaranteed to pick up + * good data. + ******************************************************************************/ +void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, + u_register_t arg2, u_register_t arg3) +{ + static console_t console; + + params_early_setup(arg1); + +#if COREBOOT + if (coreboot_serial.type) { + console_16550_register(coreboot_serial.baseaddr, + coreboot_serial.input_hertz, + coreboot_serial.baud, + &console); + } +#else + console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console); +#endif + + NOTICE("MT8195 bl31_setup\n"); + + bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info); +} + + +/******************************************************************************* + * Perform any BL31 platform setup code + ******************************************************************************/ +void bl31_platform_setup(void) +{ + /* Set dcm on */ + if (!dcm_set_default()) { + ERROR("Failed to set default dcm on!!\n"); + } + + /* Initialize EMI MPU */ + emi_mpu_init(); + + /* Initialize the GIC driver, CPU and distributor interfaces */ + mt_gic_driver_init(); + mt_gic_init(); + + mt_gpio_init(); + mt_systimer_init(); + generic_delay_timer_init(); + spm_boot_init(); +} + +/******************************************************************************* + * Perform the very early platform specific architectural setup here. At the + * moment this is only intializes the mmu in a quick and dirty way. + ******************************************************************************/ +void bl31_plat_arch_setup(void) +{ + plat_configure_mmu_el3(BL31_START, + BL31_END - BL31_START, + BL_CODE_BASE, + BL_CODE_END); +} |