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Diffstat (limited to 'roms/u-boot/cmd/booti.c')
| -rw-r--r-- | roms/u-boot/cmd/booti.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/roms/u-boot/cmd/booti.c b/roms/u-boot/cmd/booti.c new file mode 100644 index 000000000..3df70ea9c --- /dev/null +++ b/roms/u-boot/cmd/booti.c @@ -0,0 +1,160 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2000-2009 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + */ + +#include <common.h> +#include <bootm.h> +#include <command.h> +#include <image.h> +#include <irq_func.h> +#include <lmb.h> +#include <log.h> +#include <mapmem.h> +#include <asm/global_data.h> +#include <linux/kernel.h> +#include <linux/sizes.h> + +DECLARE_GLOBAL_DATA_PTR; +/* + * Image booting support + */ +static int booti_start(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[], bootm_headers_t *images) +{ + int ret; + ulong ld; + ulong relocated_addr; + ulong image_size; + uint8_t *temp; + ulong dest; + ulong dest_end; + unsigned long comp_len; + unsigned long decomp_len; + int ctype; + + ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, + images, 1); + + /* Setup Linux kernel Image entry point */ + if (!argc) { + ld = image_load_addr; + debug("* kernel: default image load address = 0x%08lx\n", + image_load_addr); + } else { + ld = simple_strtoul(argv[0], NULL, 16); + debug("* kernel: cmdline image address = 0x%08lx\n", ld); + } + + temp = map_sysmem(ld, 0); + ctype = image_decomp_type(temp, 2); + if (ctype > 0) { + dest = env_get_ulong("kernel_comp_addr_r", 16, 0); + comp_len = env_get_ulong("kernel_comp_size", 16, 0); + if (!dest || !comp_len) { + puts("kernel_comp_addr_r or kernel_comp_size is not provided!\n"); + return -EINVAL; + } + if (dest < gd->ram_base || dest > gd->ram_top) { + puts("kernel_comp_addr_r is outside of DRAM range!\n"); + return -EINVAL; + } + + debug("kernel image compression type %d size = 0x%08lx address = 0x%08lx\n", + ctype, comp_len, (ulong)dest); + decomp_len = comp_len * 10; + ret = image_decomp(ctype, 0, ld, IH_TYPE_KERNEL, + (void *)dest, (void *)ld, comp_len, + decomp_len, &dest_end); + if (ret) + return ret; + /* dest_end contains the uncompressed Image size */ + memmove((void *) ld, (void *)dest, dest_end); + } + unmap_sysmem((void *)ld); + + ret = booti_setup(ld, &relocated_addr, &image_size, false); + if (ret != 0) + return 1; + + /* Handle BOOTM_STATE_LOADOS */ + if (relocated_addr != ld) { + printf("Moving Image from 0x%lx to 0x%lx, end=%lx\n", ld, + relocated_addr, relocated_addr + image_size); + memmove((void *)relocated_addr, (void *)ld, image_size); + } + + images->ep = relocated_addr; + images->os.start = relocated_addr; + images->os.end = relocated_addr + image_size; + + lmb_reserve(&images->lmb, images->ep, le32_to_cpu(image_size)); + + /* + * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not + * have a header that provide this informaiton. + */ + if (bootm_find_images(flag, argc, argv, relocated_addr, image_size)) + return 1; + + return 0; +} + +int do_booti(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + int ret; + + /* Consume 'booti' */ + argc--; argv++; + + if (booti_start(cmdtp, flag, argc, argv, &images)) + return 1; + + /* + * We are doing the BOOTM_STATE_LOADOS state ourselves, so must + * disable interrupts ourselves + */ + bootm_disable_interrupts(); + + images.os.os = IH_OS_LINUX; +#ifdef CONFIG_RISCV_SMODE + images.os.arch = IH_ARCH_RISCV; +#elif CONFIG_ARM64 + images.os.arch = IH_ARCH_ARM64; +#endif + ret = do_bootm_states(cmdtp, flag, argc, argv, +#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH + BOOTM_STATE_RAMDISK | +#endif + BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | + BOOTM_STATE_OS_GO, + &images, 1); + + return ret; +} + +#ifdef CONFIG_SYS_LONGHELP +static char booti_help_text[] = + "[addr [initrd[:size]] [fdt]]\n" + " - boot Linux flat or compressed 'Image' stored at 'addr'\n" + "\tThe argument 'initrd' is optional and specifies the address\n" + "\tof an initrd in memory. The optional parameter ':size' allows\n" + "\tspecifying the size of a RAW initrd.\n" + "\tCurrently only booting from gz, bz2, lzma and lz4 compression\n" + "\ttypes are supported. In order to boot from any of these compressed\n" + "\timages, user have to set kernel_comp_addr_r and kernel_comp_size environment\n" + "\tvariables beforehand.\n" +#if defined(CONFIG_OF_LIBFDT) + "\tSince booting a Linux kernel requires a flat device-tree, a\n" + "\tthird argument providing the address of the device-tree blob\n" + "\tis required. To boot a kernel with a device-tree blob but\n" + "\twithout an initrd image, use a '-' for the initrd argument.\n" +#endif + ""; +#endif + +U_BOOT_CMD( + booti, CONFIG_SYS_MAXARGS, 1, do_booti, + "boot Linux kernel 'Image' format from memory", booti_help_text +); |