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Diffstat (limited to 'common/image-android-dt.c')
| -rw-r--r-- | common/image-android-dt.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/common/image-android-dt.c b/common/image-android-dt.c deleted file mode 100644 index a2d52df4a2..0000000000 --- a/common/image-android-dt.c +++ /dev/null @@ -1,157 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * (C) Copyright 2018 Linaro Ltd. - * Sam Protsenko <semen.protsenko@linaro.org> - */ - -#include <image-android-dt.h> -#include <dt_table.h> -#include <common.h> -#include <linux/libfdt.h> -#include <mapmem.h> - -/** - * Check if image header is correct. - * - * @param hdr_addr Start address of DT image - * @return true if header is correct or false if header is incorrect - */ -bool android_dt_check_header(ulong hdr_addr) -{ - const struct dt_table_header *hdr; - u32 magic; - - hdr = map_sysmem(hdr_addr, sizeof(*hdr)); - magic = fdt32_to_cpu(hdr->magic); - unmap_sysmem(hdr); - - return magic == DT_TABLE_MAGIC; -} - -/** - * Get the address of FDT (dtb or dtbo) in memory by its index in image. - * - * @param hdr_addr Start address of DT image - * @param index Index of desired FDT in image (starting from 0) - * @param[out] addr If not NULL, will contain address to specified FDT - * @param[out] size If not NULL, will contain size of specified FDT - * - * @return true on success or false on error - */ -bool android_dt_get_fdt_by_index(ulong hdr_addr, u32 index, ulong *addr, - u32 *size) -{ - const struct dt_table_header *hdr; - const struct dt_table_entry *e; - u32 entry_count, entries_offset, entry_size; - ulong e_addr; - u32 dt_offset, dt_size; - - hdr = map_sysmem(hdr_addr, sizeof(*hdr)); - entry_count = fdt32_to_cpu(hdr->dt_entry_count); - entries_offset = fdt32_to_cpu(hdr->dt_entries_offset); - entry_size = fdt32_to_cpu(hdr->dt_entry_size); - unmap_sysmem(hdr); - - if (index >= entry_count) { - printf("Error: index >= dt_entry_count (%u >= %u)\n", index, - entry_count); - return false; - } - - e_addr = hdr_addr + entries_offset + index * entry_size; - e = map_sysmem(e_addr, sizeof(*e)); - dt_offset = fdt32_to_cpu(e->dt_offset); - dt_size = fdt32_to_cpu(e->dt_size); - unmap_sysmem(e); - - if (addr) - *addr = hdr_addr + dt_offset; - if (size) - *size = dt_size; - - return true; -} - -#if !defined(CONFIG_SPL_BUILD) -static void android_dt_print_fdt_info(const struct fdt_header *fdt) -{ - u32 fdt_size; - int root_node_off; - const char *compatible; - - root_node_off = fdt_path_offset(fdt, "/"); - if (root_node_off < 0) { - printf("Error: Root node not found\n"); - return; - } - - fdt_size = fdt_totalsize(fdt); - compatible = fdt_getprop(fdt, root_node_off, "compatible", - NULL); - - printf(" (FDT)size = %d\n", fdt_size); - printf(" (FDT)compatible = %s\n", - compatible ? compatible : "(unknown)"); -} - -/** - * Print information about DT image structure. - * - * @param hdr_addr Start address of DT image - */ -void android_dt_print_contents(ulong hdr_addr) -{ - const struct dt_table_header *hdr; - u32 entry_count, entries_offset, entry_size; - u32 i; - - hdr = map_sysmem(hdr_addr, sizeof(*hdr)); - entry_count = fdt32_to_cpu(hdr->dt_entry_count); - entries_offset = fdt32_to_cpu(hdr->dt_entries_offset); - entry_size = fdt32_to_cpu(hdr->dt_entry_size); - - /* Print image header info */ - printf("dt_table_header:\n"); - printf(" magic = %08x\n", fdt32_to_cpu(hdr->magic)); - printf(" total_size = %d\n", fdt32_to_cpu(hdr->total_size)); - printf(" header_size = %d\n", fdt32_to_cpu(hdr->header_size)); - printf(" dt_entry_size = %d\n", entry_size); - printf(" dt_entry_count = %d\n", entry_count); - printf(" dt_entries_offset = %d\n", entries_offset); - printf(" page_size = %d\n", fdt32_to_cpu(hdr->page_size)); - printf(" version = %d\n", fdt32_to_cpu(hdr->version)); - - unmap_sysmem(hdr); - - /* Print image entries info */ - for (i = 0; i < entry_count; ++i) { - const ulong e_addr = hdr_addr + entries_offset + i * entry_size; - const struct dt_table_entry *e; - const struct fdt_header *fdt; - u32 dt_offset, dt_size; - u32 j; - - e = map_sysmem(e_addr, sizeof(*e)); - dt_offset = fdt32_to_cpu(e->dt_offset); - dt_size = fdt32_to_cpu(e->dt_size); - - printf("dt_table_entry[%d]:\n", i); - printf(" dt_size = %d\n", dt_size); - printf(" dt_offset = %d\n", dt_offset); - printf(" id = %08x\n", fdt32_to_cpu(e->id)); - printf(" rev = %08x\n", fdt32_to_cpu(e->rev)); - for (j = 0; j < 4; ++j) { - printf(" custom[%d] = %08x\n", j, - fdt32_to_cpu(e->custom[j])); - } - - unmap_sysmem(e); - - /* Print FDT info for this entry */ - fdt = map_sysmem(hdr_addr + dt_offset, sizeof(*fdt)); - android_dt_print_fdt_info(fdt); - unmap_sysmem(fdt); - } -} -#endif |