diff options
Diffstat (limited to 'meta/packages/uboot/u-boot-mkimage-openmoko-native/nand-createbbt.patch')
-rw-r--r-- | meta/packages/uboot/u-boot-mkimage-openmoko-native/nand-createbbt.patch | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/meta/packages/uboot/u-boot-mkimage-openmoko-native/nand-createbbt.patch b/meta/packages/uboot/u-boot-mkimage-openmoko-native/nand-createbbt.patch new file mode 100644 index 000000000..74b79da0a --- /dev/null +++ b/meta/packages/uboot/u-boot-mkimage-openmoko-native/nand-createbbt.patch @@ -0,0 +1,126 @@ +This patch adds user-requested BBT creation. It includes the following changes: + +- common/cmd_nand.c: move yes/no decision to separate function +- do_nand: ask for confirmation for "nand erase" +- do_nand: add command "nand createbbt" to erase NAND and create a new BBT + +Experimental. + +- Werner Almesberger <werner@openmoko.org> + + +Index: u-boot/common/cmd_nand.c +=================================================================== +--- u-boot.orig/common/cmd_nand.c 2007-02-16 23:53:28.000000000 +0100 ++++ u-boot/common/cmd_nand.c 2007-02-16 23:53:57.000000000 +0100 +@@ -163,6 +163,17 @@ + return 0; + } + ++static int yes(void) ++{ ++ char c; ++ ++ c = getc(); ++ if (c != 'y' && c != 'Y') ++ return 0; ++ c = getc(); ++ return c == '\r' || c == '\n'; ++} ++ + int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) + { + int i, dev, ret; +@@ -228,7 +239,8 @@ + strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 && + strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 && + strcmp(cmd, "biterr") != 0 && +- strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 ) ++ strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 && ++ strcmp(cmd, "createbbt") != 0 ) + goto usage; + + /* the following commands operate on the current device */ +@@ -283,13 +295,23 @@ + "are sure of what you are doing!\n" + "\nReally scrub this NAND flash? <y/N>\n"); + +- if (getc() == 'y' && getc() == '\r') { ++ if (yes()) { + opts.scrub = 1; + } else { + puts("scrub aborted\n"); + return -1; + } + } ++ else { ++ if (opts.length == nand->size) { ++ puts("Really erase everything ? <y/N>\n"); ++ if (!yes()) { ++ puts("erase aborted\n"); ++ return -1; ++ } ++ } ++ } ++ + ret = nand_erase_opts(nand, &opts); + printf("%s\n", ret ? "ERROR" : "OK"); + +@@ -458,6 +480,33 @@ + return 0; + } + ++ if (strcmp(cmd, "createbbt") == 0) { ++ struct nand_chip *nand_chip = nand->priv; ++ nand_erase_options_t opts; ++ ++ puts("Create BBT and erase everything ? <y/N>\n"); ++ if (!yes()) { ++ puts("createbbt aborted\n"); ++ return -1; ++ } ++ memset(&opts, 0, sizeof(opts)); ++ opts.length = nand->size; ++ if (nand_erase_opts(nand, &opts)) { ++ puts("Erase failed\n"); ++ return 1; ++ } ++ nand_chip->options &= ~NAND_DONT_CREATE_BBT; ++ puts("Creating BBT. Please wait ..."); ++ if (nand_default_bbt(nand)) { ++ puts("\nFailed\n"); ++ return 1; ++ } ++ else { ++ puts("\n"); ++ return 0; ++ } ++ } ++ + usage: + printf("Usage:\n%s\n", cmdtp->usage); + return 1; +@@ -478,7 +527,8 @@ + "nand markbad off - mark bad block at offset (UNSAFE)\n" + "nand biterr off - make a bit error at offset (UNSAFE)\n" + "nand lock [tight] [status] - bring nand to lock state or display locked pages\n" +- "nand unlock [offset] [size] - unlock section\n"); ++ "nand unlock [offset] [size] - unlock section\n" ++ "nand createbbt - create bad block table\n"); + + static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand, + ulong offset, ulong addr, char *cmd) +Index: u-boot/drivers/nand/nand_bbt.c +=================================================================== +--- u-boot.orig/drivers/nand/nand_bbt.c 2007-02-16 23:53:54.000000000 +0100 ++++ u-boot/drivers/nand/nand_bbt.c 2007-02-16 23:53:57.000000000 +0100 +@@ -795,7 +795,8 @@ + + len = mtd->size >> (this->bbt_erase_shift + 2); + /* Allocate memory (2bit per block) */ +- this->bbt = kmalloc (len, GFP_KERNEL); ++ if (!this->bbt) ++ this->bbt = kmalloc (len, GFP_KERNEL); + if (!this->bbt) { + printk (KERN_ERR "nand_scan_bbt: Out of memory\n"); + return -ENOMEM; |