diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/Kconfig | 8 | ||||
| -rw-r--r-- | cmd/Makefile | 1 | ||||
| -rw-r--r-- | cmd/dtimg.c | 141 | ||||
| -rw-r--r-- | cmd/efi.c | 27 | ||||
| -rw-r--r-- | cmd/elf.c | 5 |
5 files changed, 169 insertions, 13 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index b667df8985..04bdbf0f3b 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -254,6 +254,14 @@ config CMD_BOOTMENU help Add an ANSI terminal boot menu command. +config CMD_DTIMG + bool "dtimg" + help + Android DTB/DTBO image manipulation commands. Read dtb/dtbo files from + image into RAM, dump image structure information, etc. Those dtb/dtbo + files should be merged in one dtb further, which needs to be passed to + the kernel, as part of a boot process. + config CMD_ELF bool "bootelf, bootvx" default y diff --git a/cmd/Makefile b/cmd/Makefile index ef0213580d..3487c80455 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -44,6 +44,7 @@ ifdef CONFIG_POST obj-$(CONFIG_CMD_DIAG) += diag.o endif obj-$(CONFIG_CMD_DISPLAY) += display.o +obj-$(CONFIG_CMD_DTIMG) += dtimg.o obj-$(CONFIG_CMD_ECHO) += echo.o obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o obj-$(CONFIG_CMD_EEPROM) += eeprom.o diff --git a/cmd/dtimg.c b/cmd/dtimg.c new file mode 100644 index 0000000000..65c8d101b9 --- /dev/null +++ b/cmd/dtimg.c @@ -0,0 +1,141 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2018 Linaro Ltd. + * Sam Protsenko <semen.protsenko@linaro.org> + */ + +#include <image-android-dt.h> +#include <common.h> + +enum cmd_dtimg_info { + CMD_DTIMG_START = 0, + CMD_DTIMG_SIZE, +}; + +static int do_dtimg_dump(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + char *endp; + ulong hdr_addr; + + if (argc != 2) + return CMD_RET_USAGE; + + hdr_addr = simple_strtoul(argv[1], &endp, 16); + if (*endp != '\0') { + printf("Error: Wrong image address\n"); + return CMD_RET_FAILURE; + } + + if (!android_dt_check_header(hdr_addr)) { + printf("Error: DT image header is incorrect\n"); + return CMD_RET_FAILURE; + } + + android_dt_print_contents(hdr_addr); + + return CMD_RET_SUCCESS; +} + +static int dtimg_get_fdt(int argc, char * const argv[], enum cmd_dtimg_info cmd) +{ + ulong hdr_addr; + u32 index; + char *endp; + ulong fdt_addr; + u32 fdt_size; + char buf[65]; + + if (argc != 4) + return CMD_RET_USAGE; + + hdr_addr = simple_strtoul(argv[1], &endp, 16); + if (*endp != '\0') { + printf("Error: Wrong image address\n"); + return CMD_RET_FAILURE; + } + + if (!android_dt_check_header(hdr_addr)) { + printf("Error: DT image header is incorrect\n"); + return CMD_RET_FAILURE; + } + + index = simple_strtoul(argv[2], &endp, 0); + if (*endp != '\0') { + printf("Error: Wrong index\n"); + return CMD_RET_FAILURE; + } + + if (!android_dt_get_fdt_by_index(hdr_addr, index, &fdt_addr, &fdt_size)) + return CMD_RET_FAILURE; + + switch (cmd) { + case CMD_DTIMG_START: + snprintf(buf, sizeof(buf), "%lx", fdt_addr); + break; + case CMD_DTIMG_SIZE: + snprintf(buf, sizeof(buf), "%x", fdt_size); + break; + default: + printf("Error: Unknown cmd_dtimg_info value: %d\n", cmd); + return CMD_RET_FAILURE; + } + + env_set(argv[3], buf); + + return CMD_RET_SUCCESS; +} + +static int do_dtimg_start(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + return dtimg_get_fdt(argc, argv, CMD_DTIMG_START); +} + +static int do_dtimg_size(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + return dtimg_get_fdt(argc, argv, CMD_DTIMG_SIZE); +} + +static cmd_tbl_t cmd_dtimg_sub[] = { + U_BOOT_CMD_MKENT(dump, 2, 0, do_dtimg_dump, "", ""), + U_BOOT_CMD_MKENT(start, 4, 0, do_dtimg_start, "", ""), + U_BOOT_CMD_MKENT(size, 4, 0, do_dtimg_size, "", ""), +}; + +static int do_dtimg(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + cmd_tbl_t *cp; + + cp = find_cmd_tbl(argv[1], cmd_dtimg_sub, ARRAY_SIZE(cmd_dtimg_sub)); + + /* Strip off leading 'dtimg' command argument */ + argc--; + argv++; + + if (!cp || argc > cp->maxargs) + return CMD_RET_USAGE; + if (flag == CMD_FLAG_REPEAT && !cp->repeatable) + return CMD_RET_SUCCESS; + + return cp->cmd(cmdtp, flag, argc, argv); +} + +U_BOOT_CMD( + dtimg, CONFIG_SYS_MAXARGS, 0, do_dtimg, + "manipulate dtb/dtbo Android image", + "dump <addr>\n" + " - parse specified image and print its structure info\n" + " <addr>: image address in RAM, in hex\n" + "dtimg start <addr> <index> <varname>\n" + " - get address (hex) of FDT in the image, by index\n" + " <addr>: image address in RAM, in hex\n" + " <index>: index of desired FDT in the image\n" + " <varname>: name of variable where to store address of FDT\n" + "dtimg size <addr> <index> <varname>\n" + " - get size (hex, bytes) of FDT in the image, by index\n" + " <addr>: image address in RAM, in hex\n" + " <index>: index of desired FDT in the image\n" + " <varname>: name of variable where to store size of FDT" +); @@ -28,18 +28,21 @@ static const char *const type_name[] = { }; static struct attr_info { - int shift; + u64 val; const char *name; } mem_attr[] = { - { EFI_MEMORY_UC_SHIFT, "uncached" }, - { EFI_MEMORY_WC_SHIFT, "write-coalescing" }, - { EFI_MEMORY_WT_SHIFT, "write-through" }, - { EFI_MEMORY_WB_SHIFT, "write-back" }, - { EFI_MEMORY_UCE_SHIFT, "uncached & exported" }, - { EFI_MEMORY_WP_SHIFT, "write-protect" }, - { EFI_MEMORY_RP_SHIFT, "read-protect" }, - { EFI_MEMORY_XP_SHIFT, "execute-protect" }, - { EFI_MEMORY_RUNTIME_SHIFT, "needs runtime mapping" } + { EFI_MEMORY_UC, "uncached" }, + { EFI_MEMORY_WC, "write-coalescing" }, + { EFI_MEMORY_WT, "write-through" }, + { EFI_MEMORY_WB, "write-back" }, + { EFI_MEMORY_UCE, "uncached & exported" }, + { EFI_MEMORY_WP, "write-protect" }, + { EFI_MEMORY_RP, "read-protect" }, + { EFI_MEMORY_XP, "execute-protect" }, + { EFI_MEMORY_NV, "non-volatile" }, + { EFI_MEMORY_MORE_RELIABLE, "higher reliability" }, + { EFI_MEMORY_RO, "read-only" }, + { EFI_MEMORY_RUNTIME, "needs runtime mapping" } }; /* Maximum different attribute values we can track */ @@ -170,10 +173,10 @@ static void efi_print_mem_table(struct efi_entry_memmap *map, bool first; int j; - printf("%c%llx: ", attr & EFI_MEMORY_RUNTIME ? 'r' : ' ', + printf("%c%llx: ", (attr & EFI_MEMORY_RUNTIME) ? 'r' : ' ', attr & ~EFI_MEMORY_RUNTIME); for (j = 0, first = true; j < ARRAY_SIZE(mem_attr); j++) { - if (attr & (1ULL << mem_attr[j].shift)) { + if (attr & mem_attr[j].val) { if (first) first = false; else @@ -115,7 +115,10 @@ static unsigned long load_elf64_image_shdr(unsigned long addr) memcpy((void *)(uintptr_t)shdr->sh_addr, (const void *)image, shdr->sh_size); } - flush_cache((ulong)shdr->sh_addr, shdr->sh_size); + flush_cache(rounddown(shdr->sh_addr, ARCH_DMA_MINALIGN), + roundup((shdr->sh_addr + shdr->sh_size), + ARCH_DMA_MINALIGN) - + rounddown(shdr->sh_addr, ARCH_DMA_MINALIGN)); } if (ehdr->e_machine == EM_PPC64 && (ehdr->e_flags & |