Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / tools / pblimage.c

diff --git a/tools/pblimage.c b/tools/pblimage.c
index 508a747a3f6e4875eb9a9d7670cce06bd0e54e4a..4542a9c10f52a0670555c2282754cc06460fc280 100644 (file)
--- a/tools/pblimage.c
+++ b/tools/pblimage.c
@@ -1,23 +1,7 @@
 /*
  * Copyright 2012 Freescale Semiconductor, Inc.
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 #define _GNU_SOURCE
 
@@ -26,18 +10,14 @@
 #include "pblimage.h"
 
 /*
- * 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. SYS_TEXT_BASE
- * is 0xFFF80000 for PBL boot, and PBL only cares about low 24-bit,
- * so it starts from 0x81F80000.
+ * Initialize to an invalid value.
  */
-static uint32_t next_pbl_cmd = 0x81F80000;
+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[600000];
+static unsigned char mem_buf[1000000];
 static unsigned char *pmem_buf = mem_buf;
 static int pbl_size;
 static char *fname = "Unknown";
@@ -52,6 +32,27 @@ static union
 
 #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 init_next_pbl_cmd(FILE *fp_uboot)
+{
+       struct stat st;
+       int 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);
+       }
+
+       next_pbl_cmd = 0x82000000 - st.st_size;
+}
+
 static void generate_pbl_cmd(void)
 {
        uint32_t val = next_pbl_cmd;
@@ -80,6 +81,7 @@ static void pbl_fget(size_t size, FILE *stream)
 /* load split u-boot with PBI command 81xxxxxx. */
 static void load_uboot(FILE *fp_uboot)
 {
+       init_next_pbl_cmd(fp_uboot);
        while (next_pbl_cmd < 0x82000000) {
                generate_pbl_cmd();
                pbl_fget(64, fp_uboot);