X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Farm%2Flib%2Fbootm.c;h=f9ed7fe38ab8d790a0b712341a5af2ef576c0ed8;hb=a60d94b204412732409e70cb15236bd96d4da7d9;hp=1b6e0ace45372417af0b671aac632fce309b12f3;hpb=e6c7f86f03b0ad25e9ef70df3ee1989b6b789d7c;p=oweals%2Fu-boot.git diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index 1b6e0ace45..f9ed7fe38a 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -9,19 +9,7 @@ * * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -30,9 +18,17 @@ #include #include #include +#include #include #include +#include #include +#include +#include + +#ifdef CONFIG_ARMV7_NONSEC +#include +#endif DECLARE_GLOBAL_DATA_PTR; @@ -68,9 +64,15 @@ void arch_lmb_reserve(struct lmb *lmb) gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp); } -static void announce_and_cleanup(void) +/** + * announce_and_cleanup() - Print message and prepare for kernel boot + * + * @fake: non-zero to do everything except actually boot + */ +static void announce_and_cleanup(int fake) { - printf("\nStarting kernel ...\n\n"); + printf("\nStarting kernel ...%s\n\n", fake ? + "(fake run for tracing)" : ""); bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel"); #ifdef CONFIG_BOOTSTAGE_FDT bootstage_fdt_add_report(); @@ -186,6 +188,18 @@ static void setup_end_tag(bd_t *bd) __weak void setup_board_tags(struct tag **in_params) {} +#ifdef CONFIG_ARM64 +static void do_nonsec_virt_switch(void) +{ + smp_kick_all_cpus(); + dcache_disable(); /* flush cache before swtiching to EL2 */ + armv8_switch_to_el2(); +#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 + armv8_switch_to_el1(); +#endif +} +#endif + /* Subcommand: PREP */ static void boot_prep_linux(bootm_headers_t *images) { @@ -211,7 +225,17 @@ static void boot_prep_linux(bootm_headers_t *images) if (BOOTM_ENABLE_MEMORY_TAGS) setup_memory_tags(gd->bd); if (BOOTM_ENABLE_INITRD_TAG) { - if (images->rd_start && images->rd_end) { + /* + * In boot_ramdisk_high(), it may relocate ramdisk to + * a specified location. And set images->initrd_start & + * images->initrd_end to relocated ramdisk's start/end + * addresses. So use them instead of images->rd_start & + * images->rd_end when possible. + */ + if (images->initrd_start && images->initrd_end) { + setup_initrd_tag(gd->bd, images->initrd_start, + images->initrd_end); + } else if (images->rd_start && images->rd_end) { setup_initrd_tag(gd->bd, images->rd_start, images->rd_end); } @@ -224,33 +248,86 @@ static void boot_prep_linux(bootm_headers_t *images) } } +#ifdef CONFIG_ARMV7_NONSEC +bool armv7_boot_nonsec(void) +{ + char *s = getenv("bootm_boot_mode"); +#ifdef CONFIG_ARMV7_BOOT_SEC_DEFAULT + bool nonsec = false; +#else + bool nonsec = true; +#endif + + if (s && !strcmp(s, "sec")) + nonsec = false; + + if (s && !strcmp(s, "nonsec")) + nonsec = true; + + return nonsec; +} +#endif + /* Subcommand: GO */ -static void boot_jump_linux(bootm_headers_t *images) +static void boot_jump_linux(bootm_headers_t *images, int flag) { +#ifdef CONFIG_ARM64 + void (*kernel_entry)(void *fdt_addr, void *res0, void *res1, + void *res2); + int fake = (flag & BOOTM_STATE_OS_FAKE_GO); + + kernel_entry = (void (*)(void *fdt_addr, void *res0, void *res1, + void *res2))images->ep; + + debug("## Transferring control to Linux (at address %lx)...\n", + (ulong) kernel_entry); + bootstage_mark(BOOTSTAGE_ID_RUN_OS); + + announce_and_cleanup(fake); + + if (!fake) { + do_nonsec_virt_switch(); + kernel_entry(images->ft_addr, NULL, NULL, NULL); + } +#else unsigned long machid = gd->bd->bi_arch_number; char *s; void (*kernel_entry)(int zero, int arch, uint params); unsigned long r2; + int fake = (flag & BOOTM_STATE_OS_FAKE_GO); kernel_entry = (void (*)(int, int, uint))images->ep; s = getenv("machid"); if (s) { - strict_strtoul(s, 16, &machid); + if (strict_strtoul(s, 16, &machid) < 0) { + debug("strict_strtoul failed!\n"); + return; + } printf("Using machid 0x%lx from environment\n", machid); } debug("## Transferring control to Linux (at address %08lx)" \ "...\n", (ulong) kernel_entry); bootstage_mark(BOOTSTAGE_ID_RUN_OS); - announce_and_cleanup(); + announce_and_cleanup(fake); if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) r2 = (unsigned long)images->ft_addr; else r2 = gd->bd->bi_boot_params; - kernel_entry(0, machid, r2); + if (!fake) { +#ifdef CONFIG_ARMV7_NONSEC + if (armv7_boot_nonsec()) { + armv7_init_nonsec(); + secure_ram_addr(_do_nonsec_entry)(kernel_entry, + 0, machid, r2); + } else +#endif + kernel_entry(0, machid, r2); + } +#endif } /* Main Entry point for arm bootm implementation @@ -259,7 +336,8 @@ static void boot_jump_linux(bootm_headers_t *images) * DIFFERENCE: Instead of calling prep and go at the end * they are called if subcommand is equal 0. */ -int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) +int do_bootm_linux(int flag, int argc, char * const argv[], + bootm_headers_t *images) { /* No need for those on ARM */ if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE) @@ -270,42 +348,37 @@ int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) return 0; } - if (flag & BOOTM_STATE_OS_GO) { - boot_jump_linux(images); + if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) { + boot_jump_linux(images, flag); return 0; } boot_prep_linux(images); - boot_jump_linux(images); + boot_jump_linux(images, flag); return 0; } -#ifdef CONFIG_CMD_BOOTZ - -struct zimage_header { - uint32_t code[9]; - uint32_t zi_magic; - uint32_t zi_start; - uint32_t zi_end; -}; - -#define LINUX_ARM_ZIMAGE_MAGIC 0x016f2818 - -int bootz_setup(void *image, void **start, void **end) +#if defined(CONFIG_BOOTM_VXWORKS) +void boot_prep_vxworks(bootm_headers_t *images) { - struct zimage_header *zi = (struct zimage_header *)image; - - if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) { - puts("Bad Linux ARM zImage magic!\n"); - return 1; +#if defined(CONFIG_OF_LIBFDT) + int off; + + if (images->ft_addr) { + off = fdt_path_offset(images->ft_addr, "/memory"); + if (off < 0) { +#ifdef CONFIG_ARCH_FIXUP_FDT + if (arch_fixup_fdt(images->ft_addr)) + puts("## WARNING: fixup memory failed!\n"); +#endif + } } - - *start = (void *)zi->zi_start; - *end = (void *)zi->zi_end; - - debug("Kernel image @ 0x%08x [ 0x%08x - 0x%08x ]\n", - (uint32_t)image, (uint32_t)*start, (uint32_t)*end); - - return 0; +#endif + cleanup_before_linux(); } -#endif /* CONFIG_CMD_BOOTZ */ +void boot_jump_vxworks(bootm_headers_t *images) +{ + /* ARM VxWorks requires device tree physical address to be passed */ + ((void (*)(void *))images->ep)(images->ft_addr); +} +#endif