mirror of
https://github.com/AsahiLinux/u-boot
synced 2025-01-10 20:28:59 +00:00
01a701994b
Add initial support for STM32MP2 SoCs family. SoCs information are available here : https://www.st.com/content/st_com/en/campaigns/microprocessor-stm32mp2.html Migrate all MP1 related code into stm32mp1/ directory Create stm32mp2 directory dedicated for STM32MP2 SoCs. Common code to MP1, MP13 and MP25 is kept into arch/arm/mach-stm32/mach-stm32mp directory : - boot_params.c - bsec - cmd_stm32key - cmd_stm32prog - dram_init.c - syscon.c - ecdsa_romapi.c For STM32MP2, it also : - adds memory region description needed for ARMv8 MMU. - enables early data cache before relocation. During the transition before/after relocation, the MMU, initially setup at the beginning of DDR, must be setup again at a correct address after relocation. This is done in enables_caches() by disabling cache, force arch.tlb_fillptr to NULL which will force the MMU to be setup again but with a new value for gd->arch.tlb_addr. gd->arch.tlb_addr has been updated after relocation in arm_reserve_mmu(). Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
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/*
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* Copyright (C) 2023, STMicroelectronics - All Rights Reserved
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*/
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#define LOG_CATEGORY LOGC_BOARD
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#include <common.h>
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#include <config.h>
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#include <env.h>
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#include <fdt_support.h>
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#include <asm/global_data.h>
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#include <asm/arch/sys_proto.h>
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/*
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* Get a global data pointer
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*/
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DECLARE_GLOBAL_DATA_PTR;
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/* board dependent setup after realloc */
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int board_init(void)
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{
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return 0;
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}
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int board_late_init(void)
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{
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const void *fdt_compat;
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int fdt_compat_len;
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char dtb_name[256];
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int buf_len;
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if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) {
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fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
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&fdt_compat_len);
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if (fdt_compat && fdt_compat_len) {
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if (strncmp(fdt_compat, "st,", 3) != 0) {
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env_set("board_name", fdt_compat);
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} else {
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env_set("board_name", fdt_compat + 3);
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buf_len = sizeof(dtb_name);
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strlcpy(dtb_name, fdt_compat + 3, buf_len);
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buf_len -= strlen(fdt_compat + 3);
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strlcat(dtb_name, ".dtb", buf_len);
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env_set("fdtfile", dtb_name);
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}
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}
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}
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return 0;
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}
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