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61 lines
1.7 KiB
Diff
61 lines
1.7 KiB
Diff
--- a/drivers/mtd/redboot.c
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+++ b/drivers/mtd/redboot.c
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@@ -30,6 +30,8 @@
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#include <linux/mtd/partitions.h>
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#include <linux/module.h>
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+#define BOARD_CONFIG_PART "boardconfig"
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+
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struct fis_image_desc {
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unsigned char name[16]; // Null terminated name
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uint32_t flash_base; // Address within FLASH of image
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@@ -60,6 +62,7 @@ static int parse_redboot_partitions(stru
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struct mtd_partition **pparts,
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struct mtd_part_parser_data *data)
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{
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+ unsigned long max_offset = 0;
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int nrparts = 0;
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struct fis_image_desc *buf;
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struct mtd_partition *parts;
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@@ -225,14 +228,15 @@ static int parse_redboot_partitions(stru
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}
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}
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#endif
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- parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
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+ parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen +
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+ sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
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if (!parts) {
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ret = -ENOMEM;
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goto out;
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}
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- nullname = (char *)&parts[nrparts];
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+ nullname = (char *)&parts[nrparts + 1];
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#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
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if (nulllen > 0) {
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strcpy(nullname, nullstring);
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@@ -251,6 +255,8 @@ static int parse_redboot_partitions(stru
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}
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#endif
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for ( ; i<nrparts; i++) {
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+ if (max_offset < buf[i].flash_base + buf[i].size)
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+ max_offset = buf[i].flash_base + buf[i].size;
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parts[i].size = fl->img->size;
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parts[i].offset = fl->img->flash_base;
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parts[i].name = names;
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@@ -284,6 +290,13 @@ static int parse_redboot_partitions(stru
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fl = fl->next;
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kfree(tmp_fl);
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}
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+ if (master->size - max_offset >= master->erasesize) {
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+ parts[nrparts].size = master->size - max_offset;
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+ parts[nrparts].offset = max_offset;
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+ parts[nrparts].name = names;
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+ strcpy(names, BOARD_CONFIG_PART);
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+ nrparts++;
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+ }
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ret = nrparts;
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*pparts = parts;
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out:
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