1 files changed, 330 insertions, 0 deletions
diff --git a/roms/u-boot/tools/pblimage.c b/roms/u-boot/tools/pblimage.c
new file mode 100644
index 000000000..3c823e96c
--- /dev/null
+++ b/roms/u-boot/tools/pblimage.c
@@ -0,0 +1,330 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2012-2014 Freescale Semiconductor, Inc.
+ */
+#include "imagetool.h"
+#include <image.h>
+#include "pblimage.h"
+#include "pbl_crc32.h"
+#include <u-boot/crc.h>
+
+#define roundup(x, y)		((((x) + ((y) - 1)) / (y)) * (y))
+#define PBL_ACS_CONT_CMD	0x81000000
+#define PBL_ADDR_24BIT_MASK	0x00ffffff
+
+/*
+ * Initialize to an invalid value.
+ */
+static uint32_t next_pbl_cmd = 0x82000000;
+/*
+ * need to store all bytes in memory for calculating crc32, then write the
+ * bytes to image file for PBL boot.
+ */
+static unsigned char mem_buf[1000000];
+static unsigned char *pmem_buf = mem_buf;
+static int pbl_size;
+static char *fname = "Unknown";
+static int lineno = -1;
+static struct pbl_header pblimage_header;
+static int uboot_size;
+static int arch_flag;
+
+static uint32_t pbl_cmd_initaddr;
+static uint32_t pbi_crc_cmd1;
+static uint32_t pbi_crc_cmd2;
+static uint32_t pbl_end_cmd[4];
+
+static union
+{
+	char c[4];
+	unsigned char l;
+} endian_test = { {'l', '?', '?', 'b'} };
+
+#define ENDIANNESS ((char)endian_test.l)
+
+/*
+ * The PBL can load up to 64 bytes at a time, so we split the U-Boot
+ * image into 64 byte chunks. PBL needs a command for each piece, of
+ * the form "81xxxxxx", where "xxxxxx" is the offset. Calculate the
+ * start offset by subtracting the size of the u-boot image from the
+ * top of the allowable 24-bit range.
+ */
+static void generate_pbl_cmd(void)
+{
+	uint32_t val = next_pbl_cmd;
+	next_pbl_cmd += 0x40;
+	int i;
+
+	for (i = 3; i >= 0; i--) {
+		*pmem_buf++ = (val >> (i * 8)) & 0xff;
+		pbl_size++;
+	}
+}
+
+static void pbl_fget(size_t size, FILE *stream)
+{
+	unsigned char c = 0xff;
+	int c_temp;
+
+	while (size) {
+		c_temp = fgetc(stream);
+		if (c_temp != EOF)
+			c = (unsigned char)c_temp;
+		else if ((c_temp == EOF) && (arch_flag == IH_ARCH_ARM))
+			c = 0xff;
+		*pmem_buf++ = c;
+		pbl_size++;
+		size--;
+	}
+}
+
+/* load split u-boot with PBI command 81xxxxxx. */
+static void load_uboot(FILE *fp_uboot)
+{
+	next_pbl_cmd = pbl_cmd_initaddr - uboot_size;
+	while (next_pbl_cmd < pbl_cmd_initaddr) {
+		generate_pbl_cmd();
+		pbl_fget(64, fp_uboot);
+	}
+}
+
+static void check_get_hexval(char *token)
+{
+	uint32_t hexval;
+	int i;
+
+	if (!sscanf(token, "%x", &hexval)) {
+		printf("Error:%s[%d] - Invalid hex data(%s)\n", fname,
+			lineno, token);
+		exit(EXIT_FAILURE);
+	}
+	for (i = 3; i >= 0; i--) {
+		*pmem_buf++ = (hexval >> (i * 8)) & 0xff;
+		pbl_size++;
+	}
+}
+
+static void pbl_parser(char *name)
+{
+	FILE *fd = NULL;
+	char *line = NULL;
+	char *token, *saveptr1, *saveptr2;
+	size_t len = 0;
+
+	fname = name;
+	fd = fopen(name, "r");
+	if (fd == NULL) {
+		printf("Error:%s - Can't open\n", fname);
+		exit(EXIT_FAILURE);
+	}
+
+	while ((getline(&line, &len, fd)) > 0) {
+		lineno++;
+		token = strtok_r(line, "\r\n", &saveptr1);
+		/* drop all lines with zero tokens (= empty lines) */
+		if (token == NULL)
+			continue;
+		for (line = token;; line = NULL) {
+			token = strtok_r(line, " \t", &saveptr2);
+			if (token == NULL)
+				break;
+			/* Drop all text starting with '#' as comments */
+			if (token[0] == '#')
+				break;
+			check_get_hexval(token);
+		}
+	}
+	if (line)
+		free(line);
+	fclose(fd);
+}
+
+static uint32_t reverse_byte(uint32_t val)
+{
+	uint32_t temp;
+	unsigned char *p1;
+	int j;
+
+	temp = val;
+	p1 = (unsigned char *)&temp;
+	for (j = 3; j >= 0; j--)
+		*p1++ = (val >> (j * 8)) & 0xff;
+	return temp;
+}
+
+/* write end command and crc command to memory. */
+static void add_end_cmd(void)
+{
+	uint32_t crc32_pbl;
+	int i;
+	unsigned char *p = (unsigned char *)&pbl_end_cmd;
+
+	if (ENDIANNESS == 'l') {
+		for (i = 0; i < 4; i++)
+			pbl_end_cmd[i] = reverse_byte(pbl_end_cmd[i]);
+	}
+
+	for (i = 0; i < 16; i++) {
+		*pmem_buf++ = *p++;
+		pbl_size++;
+	}
+
+	/* Add PBI CRC command. */
+	*pmem_buf++ = 0x08;
+	*pmem_buf++ = pbi_crc_cmd1;
+	*pmem_buf++ = pbi_crc_cmd2;
+	*pmem_buf++ = 0x40;
+	pbl_size += 4;
+
+	/* calculated CRC32 and write it to memory. */
+	crc32_pbl = pbl_crc32(0, (const char *)mem_buf, pbl_size);
+	*pmem_buf++ = (crc32_pbl >> 24) & 0xff;
+	*pmem_buf++ = (crc32_pbl >> 16) & 0xff;
+	*pmem_buf++ = (crc32_pbl >> 8) & 0xff;
+	*pmem_buf++ = (crc32_pbl) & 0xff;
+	pbl_size += 4;
+}
+
+void pbl_load_uboot(int ifd, struct image_tool_params *params)
+{
+	FILE *fp_uboot;
+	int size;
+
+	/* parse the rcw.cfg file. */
+	pbl_parser(params->imagename);
+
+	/* parse the pbi.cfg file. */
+	if (params->imagename2[0] != '\0')
+		pbl_parser(params->imagename2);
+
+	if (params->datafile) {
+		fp_uboot = fopen(params->datafile, "r");
+		if (fp_uboot == NULL) {
+			printf("Error: %s open failed\n", params->datafile);
+			exit(EXIT_FAILURE);
+		}
+
+		load_uboot(fp_uboot);
+		fclose(fp_uboot);
+	}
+	add_end_cmd();
+	lseek(ifd, 0, SEEK_SET);
+
+	size = pbl_size;
+	if (write(ifd, (const void *)&mem_buf, size) != size) {
+		fprintf(stderr, "Write error on %s: %s\n",
+			params->imagefile, strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+}
+
+static int pblimage_check_image_types(uint8_t type)
+{
+	if (type == IH_TYPE_PBLIMAGE)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+static int pblimage_verify_header(unsigned char *ptr, int image_size,
+			struct image_tool_params *params)
+{
+	struct pbl_header *pbl_hdr = (struct pbl_header *) ptr;
+
+	/* Only a few checks can be done: search for magic numbers */
+	if (ENDIANNESS == 'l') {
+		if (pbl_hdr->preamble != reverse_byte(RCW_PREAMBLE))
+			return -FDT_ERR_BADSTRUCTURE;
+
+		if (pbl_hdr->rcwheader != reverse_byte(RCW_HEADER))
+			return -FDT_ERR_BADSTRUCTURE;
+	} else {
+		if (pbl_hdr->preamble != RCW_PREAMBLE)
+			return -FDT_ERR_BADSTRUCTURE;
+
+		if (pbl_hdr->rcwheader != RCW_HEADER)
+			return -FDT_ERR_BADSTRUCTURE;
+	}
+	return 0;
+}
+
+static void pblimage_print_header(const void *ptr)
+{
+	printf("Image Type:   Freescale PBL Boot Image\n");
+}
+
+static void pblimage_set_header(void *ptr, struct stat *sbuf, int ifd,
+				struct image_tool_params *params)
+{
+	/*nothing need to do, pbl_load_uboot takes care of whole file. */
+}
+
+int pblimage_check_params(struct image_tool_params *params)
+{
+	FILE *fp_uboot;
+	int fd;
+	struct stat st;
+
+	if (!params)
+		return EXIT_FAILURE;
+
+	if (params->datafile) {
+		fp_uboot = fopen(params->datafile, "r");
+		if (fp_uboot == NULL) {
+			printf("Error: %s open failed\n", params->datafile);
+			exit(EXIT_FAILURE);
+		}
+		fd = fileno(fp_uboot);
+
+		if (fstat(fd, &st) == -1) {
+			printf("Error: Could not determine u-boot image size. %s\n",
+			       strerror(errno));
+			exit(EXIT_FAILURE);
+		}
+
+		/* For the variable size, pad it to 64 byte boundary */
+		uboot_size = roundup(st.st_size, 64);
+		fclose(fp_uboot);
+	}
+
+	if (params->arch == IH_ARCH_ARM) {
+		arch_flag = IH_ARCH_ARM;
+		pbi_crc_cmd1 = 0x61;
+		pbi_crc_cmd2 = 0;
+		pbl_cmd_initaddr = params->addr & PBL_ADDR_24BIT_MASK;
+		pbl_cmd_initaddr |= PBL_ACS_CONT_CMD;
+		pbl_cmd_initaddr += uboot_size;
+		pbl_end_cmd[0] = 0x09610000;
+		pbl_end_cmd[1] = 0x00000000;
+		pbl_end_cmd[2] = 0x096100c0;
+		pbl_end_cmd[3] = 0x00000000;
+	} else if (params->arch == IH_ARCH_PPC) {
+		arch_flag = IH_ARCH_PPC;
+		pbi_crc_cmd1 = 0x13;
+		pbi_crc_cmd2 = 0x80;
+		pbl_cmd_initaddr = 0x82000000;
+		pbl_end_cmd[0] = 0x091380c0;
+		pbl_end_cmd[1] = 0x00000000;
+		pbl_end_cmd[2] = 0x091380c0;
+		pbl_end_cmd[3] = 0x00000000;
+	}
+
+	next_pbl_cmd = pbl_cmd_initaddr;
+	return 0;
+};
+
+/* pblimage parameters */
+U_BOOT_IMAGE_TYPE(
+	pblimage,
+	"Freescale PBL Boot Image support",
+	sizeof(struct pbl_header),
+	(void *)&pblimage_header,
+	pblimage_check_params,
+	pblimage_verify_header,
+	pblimage_print_header,
+	pblimage_set_header,
+	NULL,
+	pblimage_check_image_types,
+	NULL,
+	NULL
+);