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authorStefano Babic <sbabic@denx.de>2014-07-16 08:51:30 +0200
committerStefano Babic <sbabic@denx.de>2014-07-16 08:51:30 +0200
commitdab5e3469d294a4e1ffed8407d296a78e02cc01f (patch)
treec6378034591210b3142ca3add806d52c6ea22b3b /tools/atmel_pmecc_params.c
parent14a1613140519a8d0a88e6054c302a8cb3e067a5 (diff)
parent524123a70761110c5cf3ccc5f52f6d4da071b959 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot
Signed-off-by: Stefano Babic <sbabic@denx.de> Conflicts: boards.cfg
Diffstat (limited to 'tools/atmel_pmecc_params.c')
-rw-r--r--tools/atmel_pmecc_params.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/tools/atmel_pmecc_params.c b/tools/atmel_pmecc_params.c
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+++ b/tools/atmel_pmecc_params.c
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+/*
+ * (C) Copyright 2014 Andreas Bießmann <andreas.devel@googlemail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * This is a host tool for generating an appropriate string out of board
+ * configuration. The string is required for correct generation of PMECC
+ * header which in turn is required for NAND flash booting of Atmel AT91 style
+ * hardware.
+ *
+ * See doc/README.atmel_pmecc for more information.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+
+static int pmecc_get_ecc_bytes(int cap, int sector_size)
+{
+ int m = 12 + sector_size / 512;
+ return (m * cap + 7) / 8;
+}
+
+int main(int argc, char *argv[])
+{
+ unsigned int use_pmecc = 0;
+ unsigned int sector_per_page;
+ unsigned int sector_size = CONFIG_PMECC_SECTOR_SIZE;
+ unsigned int oob_size = CONFIG_SYS_NAND_OOBSIZE;
+ unsigned int ecc_bits = CONFIG_PMECC_CAP;
+ unsigned int ecc_offset;
+
+#ifdef CONFIG_ATMEL_NAND_HW_PMECC
+ use_pmecc = 1;
+#endif
+
+ sector_per_page = CONFIG_SYS_NAND_PAGE_SIZE / CONFIG_PMECC_SECTOR_SIZE;
+ ecc_offset = oob_size -
+ pmecc_get_ecc_bytes(ecc_bits, sector_size) * sector_per_page;
+
+ printf("usePmecc=%d,", use_pmecc);
+ printf("sectorPerPage=%d,", sector_per_page);
+ printf("sectorSize=%d,", sector_size);
+ printf("spareSize=%d,", oob_size);
+ printf("eccBits=%d,", ecc_bits);
+ printf("eccOffset=%d", ecc_offset);
+ printf("\n");
+
+ exit(EXIT_SUCCESS);
+}