예제 #1
0
static int do_bootm_aimage(struct image_data *data)
{
	struct resource *snd_stage_res;
	int fd, ret;
	struct android_header __header, *header;
	void *buf;
	int to_read;
	struct android_header_comp *cmp;
	unsigned long mem_free;
	unsigned long mem_start, mem_size;

	ret = sdram_start_and_size(&mem_start, &mem_size);
	if (ret)
		return ret;

	fd = open(data->os_file, O_RDONLY);
	if (fd < 0) {
		perror("open");
		return 1;
	}

	header = &__header;
	ret = read(fd, header, sizeof(*header));
	if (ret < sizeof(*header)) {
		printf("could not read %s\n", data->os_file);
		goto err_out;
	}

	printf("Android Image for '%s'\n", header->name);

	/*
	 * As on tftp we do not support lseek and we will just have to seek
	 * for the size of a page - 1 max just buffer instead to read to dummy
	 * data
	 */
	buf = xmalloc(header->page_size);

	to_read = header->page_size - sizeof(*header);
	ret = read_full(fd, buf, to_read);
	if (ret < 0) {
		printf("could not read dummy %d from %s\n", to_read, data->os_file);
		goto err_out;
	}

	cmp = &header->kernel;
	data->os_res = request_sdram_region("akernel", cmp->load_addr, cmp->size);
	if (!data->os_res) {
		pr_err("Cannot request region 0x%08x - 0x%08x, using default load address\n",
				cmp->load_addr, cmp->size);

		data->os_address = mem_start + PAGE_ALIGN(cmp->size * 4);
		data->os_res = request_sdram_region("akernel", data->os_address, cmp->size);
		if (!data->os_res) {
			pr_err("Cannot request region 0x%08x - 0x%08x\n",
					cmp->load_addr, cmp->size);
			ret = -ENOMEM;
			goto err_out;
		}
	}

	ret = aimage_load_resource(fd, data->os_res, buf, header->page_size);
	if (ret < 0) {
		perror("could not read kernel");
		goto err_out;
	}

	/*
	 * fastboot always expect a ramdisk
	 * in barebox we can be less restrictive
	 */
	cmp = &header->ramdisk;
	if (cmp->size) {
		data->initrd_res = request_sdram_region("ainitrd", cmp->load_addr, cmp->size);
		if (!data->initrd_res) {
			ret = -ENOMEM;
			goto err_out;
		}

		ret = aimage_load_resource(fd, data->initrd_res, buf, header->page_size);
		if (ret < 0) {
			perror("could not read initrd");
			goto err_out;
		}
	}

	if (!getenv("aimage_noverwrite_bootargs"))
		linux_bootargs_overwrite(header->cmdline);

	if (!getenv("aimage_noverwrite_tags"))
		armlinux_set_bootparams((void*)header->tags_addr);

	cmp = &header->second_stage;
	if (cmp->size) {
		void (*second)(void);

		snd_stage_res = request_sdram_region("asecond", cmp->load_addr, cmp->size);
		if (!snd_stage_res) {
			ret = -ENOMEM;
			goto err_out;
		}

		ret = aimage_load_resource(fd, snd_stage_res, buf, header->page_size);
		if (ret < 0) {
			perror("could not read initrd");
			goto err_out;
		}

		second = (void*)snd_stage_res->start;
		shutdown_barebox();

		second();

		restart_machine();
	}

	close(fd);

	/*
	 * Put devicetree right after initrd if present or after the kernel
	 * if not.
	 */
	if (data->initrd_res)
		mem_free = PAGE_ALIGN(data->initrd_res->end);
	else
		mem_free = PAGE_ALIGN(data->os_res->end + SZ_1M);

	return __do_bootm_linux(data, mem_free, 0);

err_out:
	linux_bootargs_overwrite(NULL);
	close(fd);

	return ret;
}
예제 #2
0
static int do_bootm_aimage(struct image_data *data)
{
	struct resource *snd_stage_res;
	int fd, ret;
	struct android_header __header, *header;
	void *buf;
	int to_read;
	struct android_header_comp *cmp;

	fd = open(data->os_file, O_RDONLY);
	if (fd < 0) {
		perror("open");
		return 1;
	}

	header = &__header;
	ret = read(fd, header, sizeof(*header));
	if (ret < sizeof(*header)) {
		printf("could not read %s\n", data->os_file);
		goto err_out;
	}

	printf("Android Image for '%s'\n", header->name);

	/*
	 * As on tftp we do not support lseek and we will just have to seek
	 * for the size of a page - 1 max just buffer instead to read to dummy
	 * data
	 */
	buf = xmalloc(header->page_size);

	to_read = header->page_size - sizeof(*header);
	ret = read_full(fd, buf, to_read);
	if (ret < 0) {
		printf("could not read dummy %d from %s\n", to_read, data->os_file);
		goto err_out;
	}

	cmp = &header->kernel;
	data->os_res = request_sdram_region("akernel", cmp->load_addr, cmp->size);
	if (!data->os_res) {
		ret = -ENOMEM;
		goto err_out;
	}

	ret = aimage_load_resource(fd, data->os_res, buf, header->page_size);
	if (ret < 0) {
		perror("could not read kernel");
		goto err_out;
	}

	/*
	 * fastboot always expect a ramdisk
	 * in barebox we can be less restrictive
	 */
	cmp = &header->ramdisk;
	if (cmp->size) {
		data->initrd_res = request_sdram_region("ainitrd", cmp->load_addr, cmp->size);
		if (!data->initrd_res) {
			ret = -ENOMEM;
			goto err_out;
		}

		ret = aimage_load_resource(fd, data->initrd_res, buf, header->page_size);
		if (ret < 0) {
			perror("could not read initrd");
			goto err_out;
		}
	}

	if (!getenv("aimage_noverwrite_bootargs"))
		linux_bootargs_overwrite(header->cmdline);

	if (!getenv("aimage_noverwrite_tags"))
		armlinux_set_bootparams((void*)header->tags_addr);

	cmp = &header->second_stage;
	if (cmp->size) {
		void (*second)(void);

		snd_stage_res = request_sdram_region("asecond", cmp->load_addr, cmp->size);
		if (!snd_stage_res) {
			ret = -ENOMEM;
			goto err_out;
		}

		ret = aimage_load_resource(fd, snd_stage_res, buf, header->page_size);
		if (ret < 0) {
			perror("could not read initrd");
			goto err_out;
		}

		second = (void*)snd_stage_res->start;
		shutdown_barebox();

		second();

		reset_cpu(0);
	}

	close(fd);
	return __do_bootm_linux(data, 0);

err_out:
	linux_bootargs_overwrite(NULL);
	close(fd);

	return ret;
}