Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 232 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c b/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c
new file mode 100644
index 000000000..234cb706d
--- /dev/null
+++ b/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c
@@ -0,0 +1,232 @@
+/*
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2007 Aleph One Ltd.
+ *   for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Charles Manning <charles@aleph1.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* mtd interface for YAFFS2 */
+
+/* XXX U-BOOT XXX */
+#include <common.h>
+#include "asm/errno.h"
+
+#include "yportenv.h"
+#include "yaffs_trace.h"
+
+#include "yaffs_mtdif2.h"
+
+#include "linux/mtd/mtd.h"
+#include "linux/types.h"
+#include "linux/time.h"
+
+#include "yaffs_trace.h"
+#include "yaffs_packedtags2.h"
+
+#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context))
+#define yaffs_dev_to_lc(dev) ((struct yaffs_linux_context *)((dev)->os_context))
+
+
+/* NB For use with inband tags....
+ * We assume that the data buffer is of size total_bytes_per_chunk so
+ * that we can also use it to load the tags.
+ */
+int nandmtd2_write_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
+			      const u8 *data,
+			      const struct yaffs_ext_tags *tags)
+{
+	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
+	struct mtd_oob_ops ops;
+
+	int retval = 0;
+	loff_t addr;
+
+	struct yaffs_packed_tags2 pt;
+
+	int packed_tags_size =
+	    dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt);
+	void *packed_tags_ptr =
+	    dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt;
+
+	yaffs_trace(YAFFS_TRACE_MTD,
+		"nandmtd2_write_chunk_tags chunk %d data %p tags %p",
+		nand_chunk, data, tags);
+
+	addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk;
+
+	/* For yaffs2 writing there must be both data and tags.
+	 * If we're using inband tags, then the tags are stuffed into
+	 * the end of the data buffer.
+	 */
+	if (!data || !tags)
+		BUG();
+	else if (dev->param.inband_tags) {
+		struct yaffs_packed_tags2_tags_only *pt2tp;
+		pt2tp =
+		    (struct yaffs_packed_tags2_tags_only *)(data +
+							dev->
+							data_bytes_per_chunk);
+		yaffs_pack_tags2_tags_only(pt2tp, tags);
+	} else {
+		yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc);
+	}
+
+	ops.mode = MTD_OPS_AUTO_OOB;
+	ops.ooblen = (dev->param.inband_tags) ? 0 : packed_tags_size;
+	ops.len = dev->param.total_bytes_per_chunk;
+	ops.ooboffs = 0;
+	ops.datbuf = (u8 *) data;
+	ops.oobbuf = (dev->param.inband_tags) ? NULL : packed_tags_ptr;
+	retval = mtd_write_oob(mtd, addr, &ops);
+
+	if (retval == 0)
+		return YAFFS_OK;
+	else
+		return YAFFS_FAIL;
+}
+
+int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
+			     u8 *data, struct yaffs_ext_tags *tags)
+{
+	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
+	u8 local_spare[128];
+	struct mtd_oob_ops ops;
+	size_t dummy;
+	int retval = 0;
+	int local_data = 0;
+	struct yaffs_packed_tags2 pt;
+	loff_t addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk;
+	int packed_tags_size =
+	    dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt);
+	void *packed_tags_ptr =
+	    dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt;
+
+	yaffs_trace(YAFFS_TRACE_MTD,
+		"nandmtd2_read_chunk_tags chunk %d data %p tags %p",
+		nand_chunk, data, tags);
+
+	if (dev->param.inband_tags) {
+
+		if (!data) {
+			local_data = 1;
+			data = yaffs_get_temp_buffer(dev);
+		}
+
+	}
+
+	if (dev->param.inband_tags || (data && !tags))
+		retval = mtd_read(mtd, addr, dev->param.total_bytes_per_chunk,
+				   &dummy, data);
+	else if (tags) {
+		ops.mode = MTD_OPS_AUTO_OOB;
+		ops.ooblen = packed_tags_size;
+		ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size;
+		ops.ooboffs = 0;
+		ops.datbuf = data;
+		ops.oobbuf = local_spare;
+		retval = mtd_read_oob(mtd, addr, &ops);
+	}
+
+	if (dev->param.inband_tags) {
+		if (tags) {
+			struct yaffs_packed_tags2_tags_only *pt2tp;
+			pt2tp =
+				(struct yaffs_packed_tags2_tags_only *)
+				&data[dev->data_bytes_per_chunk];
+			yaffs_unpack_tags2_tags_only(tags, pt2tp);
+		}
+	} else {
+		if (tags) {
+			memcpy(packed_tags_ptr,
+			       local_spare,
+			       packed_tags_size);
+			yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc);
+		}
+	}
+
+	if (local_data)
+		yaffs_release_temp_buffer(dev, data);
+
+	if (tags && retval == -EBADMSG
+	    && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) {
+		tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED;
+		dev->n_ecc_unfixed++;
+	}
+	if (tags && retval == -EUCLEAN
+	    && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) {
+		tags->ecc_result = YAFFS_ECC_RESULT_FIXED;
+		dev->n_ecc_fixed++;
+	}
+	if (retval == 0)
+		return YAFFS_OK;
+	else
+		return YAFFS_FAIL;
+}
+
+
+int nandmtd2_MarkNANDBlockBad(struct yaffs_dev *dev, int blockNo)
+{
+	struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
+	int retval;
+
+	yaffs_trace(YAFFS_TRACE_MTD,
+		"nandmtd2_MarkNANDBlockBad %d", blockNo);
+
+	retval =
+	    mtd_block_markbad(mtd,
+			       blockNo * dev->param.chunks_per_block *
+			       dev->data_bytes_per_chunk);
+
+	if (retval == 0)
+		return YAFFS_OK;
+	else
+		return YAFFS_FAIL;
+
+}
+
+int nandmtd2_QueryNANDBlock(struct yaffs_dev *dev, int blockNo,
+			    enum yaffs_block_state *state, u32 *sequenceNumber)
+{
+	struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
+	int retval;
+
+	yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_QueryNANDBlock %d", blockNo);
+	retval =
+	    mtd_block_isbad(mtd,
+			     blockNo * dev->param.chunks_per_block *
+			     dev->data_bytes_per_chunk);
+
+	if (retval) {
+		yaffs_trace(YAFFS_TRACE_MTD, "block is bad");
+
+		*state = YAFFS_BLOCK_STATE_DEAD;
+		*sequenceNumber = 0;
+	} else {
+		struct yaffs_ext_tags t;
+		nandmtd2_read_chunk_tags(dev,
+					   blockNo *
+					   dev->param.chunks_per_block, NULL,
+					   &t);
+
+		if (t.chunk_used) {
+			*sequenceNumber = t.seq_number;
+			*state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
+		} else {
+			*sequenceNumber = 0;
+			*state = YAFFS_BLOCK_STATE_EMPTY;
+		}
+	}
+	yaffs_trace(YAFFS_TRACE_MTD, "block is bad seq %d state %d",
+			*sequenceNumber, *state);
+
+	if (retval == 0)
+		return YAFFS_OK;
+	else
+		return YAFFS_FAIL;
+}