+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007-2011
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Tom Cubie <tangliang@allwinnertech.com>
*
* a simple tool to generate bootable image for sunxi platform.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include "imagetool.h"
+#include "../arch/arm/include/asm/arch-sunxi/spl.h"
-/* boot head definition from sun4i boot code */
-struct boot_file_head {
- uint32_t b_instruction; /* one intruction jumping to real code */
- uint8_t magic[8]; /* ="eGON.BT0" or "eGON.BT1", not C-style str */
- uint32_t check_sum; /* generated by PC */
- uint32_t length; /* generated by PC */
- /*
- * We use a simplified header, only filling in what is needed
- * by the boot ROM. To be compatible with Allwinner tools we
- * would need to implement the proper fields here instead of
- * padding.
- */
- uint8_t pad[12]; /* align to 32 bytes */
-};
-
-#define BOOT0_MAGIC "eGON.BT0"
#define STAMP_VALUE 0x5F0A6C39
/* check sum functon from sun4i boot code */
uint32_t i;
uint32_t sum;
- length = head_p->length;
+ length = le32_to_cpu(head_p->length);
if ((length & 0x3) != 0) /* must 4-byte-aligned */
return -1;
buf = (uint32_t *)head_p;
- head_p->check_sum = STAMP_VALUE; /* fill stamp */
+ head_p->check_sum = cpu_to_le32(STAMP_VALUE); /* fill stamp */
loop = length >> 2;
/* calculate the sum */
for (i = 0, sum = 0; i < loop; i++)
- sum += buf[i];
+ sum += le32_to_cpu(buf[i]);
/* write back check sum */
- head_p->check_sum = sum;
+ head_p->check_sum = cpu_to_le32(sum);
return 0;
}
-#define ALIGN(x, a) __ALIGN_MASK((x), (typeof(x))(a)-1)
-#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
+#define SUNXI_SRAM_SIZE 0x8000 /* SoC with smaller size are limited before */
+#define SRAM_LOAD_MAX_SIZE (SUNXI_SRAM_SIZE - sizeof(struct boot_file_head))
-#define SUN4I_SRAM_SIZE 0x7600 /* 0x7748+ is used by BROM */
-#define SRAM_LOAD_MAX_SIZE (SUN4I_SRAM_SIZE - sizeof(struct boot_file_head))
-#define BLOCK_SIZE 512
+/*
+ * BROM (at least on A10 and A20) requires NAND-images to be explicitly aligned
+ * to a multiple of 8K, and rejects the image otherwise. MMC-images are fine
+ * with 512B blocks. To cater for both, align to the largest of the two.
+ */
+#define BLOCK_SIZE 0x2000
struct boot_img {
struct boot_file_head header;
struct boot_img img;
unsigned file_size;
int count;
+ char *tool_name = argv[0];
+ char *default_dt = NULL;
+
+ /* a sanity check */
+ if ((sizeof(img.header) % 32) != 0) {
+ fprintf(stderr, "ERROR: the SPL header must be a multiple ");
+ fprintf(stderr, "of 32 bytes.\n");
+ return EXIT_FAILURE;
+ }
+
+ /* process optional command line switches */
+ while (argc >= 2 && argv[1][0] == '-') {
+ if (strcmp(argv[1], "--default-dt") == 0) {
+ if (argc >= 3) {
+ default_dt = argv[2];
+ argv += 2;
+ argc -= 2;
+ continue;
+ }
+ fprintf(stderr, "ERROR: no --default-dt arg\n");
+ return EXIT_FAILURE;
+ } else {
+ fprintf(stderr, "ERROR: bad option '%s'\n", argv[1]);
+ return EXIT_FAILURE;
+ }
+ }
- if (argc < 2) {
- printf("\tThis program makes an input bin file to sun4i " \
- "bootable image.\n" \
- "\tUsage: %s input_file out_putfile\n", argv[0]);
+ if (argc < 3) {
+ printf("This program converts an input binary file to a sunxi bootable image.\n");
+ printf("\nUsage: %s [options] input_file output_file\n",
+ tool_name);
+ printf("Where [options] may be:\n");
+ printf(" --default-dt arg - 'arg' is the default device tree name\n");
+ printf(" (CONFIG_DEFAULT_DEVICE_TREE).\n");
return EXIT_FAILURE;
}
return EXIT_FAILURE;
}
- memset(img.pad, 0, BLOCK_SIZE);
+ memset(&img, 0, sizeof(img));
/* get input file size */
file_size = lseek(fd_in, 0, SEEK_END);
memcpy(img.header.magic, BOOT0_MAGIC, 8); /* no '0' termination */
img.header.length =
ALIGN(file_size + sizeof(struct boot_file_head), BLOCK_SIZE);
+ img.header.b_instruction = cpu_to_le32(img.header.b_instruction);
+ img.header.length = cpu_to_le32(img.header.length);
+
+ memcpy(img.header.spl_signature, SPL_SIGNATURE, 3); /* "sunxi" marker */
+ img.header.spl_signature[3] = SPL_HEADER_VERSION;
+
+ if (default_dt) {
+ if (strlen(default_dt) + 1 <= sizeof(img.header.string_pool)) {
+ strcpy((char *)img.header.string_pool, default_dt);
+ img.header.dt_name_offset =
+ cpu_to_le32(offsetof(struct boot_file_head,
+ string_pool));
+ } else {
+ printf("WARNING: The SPL header is too small\n");
+ printf(" and has no space to store the dt name.\n");
+ }
+ }
+
gen_check_sum(&img.header);
- count = write(fd_out, &img, img.header.length);
- if (count != img.header.length) {
+ count = write(fd_out, &img, le32_to_cpu(img.header.length));
+ if (count != le32_to_cpu(img.header.length)) {
perror("Writing output");
return EXIT_FAILURE;
}
projects / oweals / u-boot.git / blobdiff