]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - fs/yaffs2/yaffs_mtdif.c
mmc: omap_hsmmc: enable 8bit interface for eMMC for AM43xx
[karo-tx-uboot.git] / fs / yaffs2 / yaffs_mtdif.c
index d0e16d088ef07727014525252471b7c3f57c3671..6fcba047f968cc7b249cb6ada5eca1c89133696b 100644 (file)
@@ -14,9 +14,6 @@
 /* XXX U-BOOT XXX */
 #include <common.h>
 
-const char *yaffs_mtdif_c_version =
-    "$Id: yaffs_mtdif.c,v 1.19 2007/02/14 01:09:06 wookey Exp $";
-
 #include "yportenv.h"
 
 
@@ -27,110 +24,69 @@ const char *yaffs_mtdif_c_version =
 #include "linux/time.h"
 #include "linux/mtd/nand.h"
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
-static struct nand_oobinfo yaffs_oobinfo = {
-       .useecc = 1,
-       .eccbytes = 6,
-       .eccpos = {8, 9, 10, 13, 14, 15}
-};
-
-static struct nand_oobinfo yaffs_noeccinfo = {
-       .useecc = 0,
-};
-#endif
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
+static inline void translate_spare2oob(const struct yaffs_spare *spare, u8 *oob)
 {
-       oob[0] = spare->tagByte0;
-       oob[1] = spare->tagByte1;
-       oob[2] = spare->tagByte2;
-       oob[3] = spare->tagByte3;
-       oob[4] = spare->tagByte4;
-       oob[5] = spare->tagByte5 & 0x3f;
-       oob[5] |= spare->blockStatus == 'Y' ? 0: 0x80;
-       oob[5] |= spare->pageStatus == 0 ? 0: 0x40;
-       oob[6] = spare->tagByte6;
-       oob[7] = spare->tagByte7;
+       oob[0] = spare->tb0;
+       oob[1] = spare->tb1;
+       oob[2] = spare->tb2;
+       oob[3] = spare->tb3;
+       oob[4] = spare->tb4;
+       oob[5] = spare->tb5 & 0x3f;
+       oob[5] |= spare->block_status == 'Y' ? 0 : 0x80;
+       oob[5] |= spare->page_status == 0 ? 0 : 0x40;
+       oob[6] = spare->tb6;
+       oob[7] = spare->tb7;
 }
 
-static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob)
+static inline void translate_oob2spare(struct yaffs_spare *spare, u8 *oob)
 {
-       struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare;
-       spare->tagByte0 = oob[0];
-       spare->tagByte1 = oob[1];
-       spare->tagByte2 = oob[2];
-       spare->tagByte3 = oob[3];
-       spare->tagByte4 = oob[4];
-       spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
-       spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y';
-       spare->pageStatus = oob[5] & 0x40 ? 0xff : 0;
+       struct yaffs_nand_spare *nspare = (struct yaffs_nand_spare *)spare;
+       spare->tb0 = oob[0];
+       spare->tb1 = oob[1];
+       spare->tb2 = oob[2];
+       spare->tb3 = oob[3];
+       spare->tb4 = oob[4];
+       spare->tb5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
+       spare->block_status = oob[5] & 0x80 ? 0xff : 'Y';
+       spare->page_status = oob[5] & 0x40 ? 0xff : 0;
        spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff;
-       spare->tagByte6 = oob[6];
-       spare->tagByte7 = oob[7];
+       spare->tb6 = oob[6];
+       spare->tb7 = oob[7];
        spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff;
 
        nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */
 }
-#endif
 
-int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
-                            const __u8 * data, const yaffs_Spare * spare)
+
+int nandmtd_WriteChunkToNAND(struct yaffs_dev *dev, int chunkInNAND,
+                            const u8 *data, const struct yaffs_spare *spare)
 {
-       struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+       struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
        struct mtd_oob_ops ops;
-#endif
        size_t dummy;
        int retval = 0;
-
-       loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-       __u8 spareAsBytes[8]; /* OOB */
+       loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk;
+       u8 spareAsBytes[8]; /* OOB */
 
        if (data && !spare)
-               retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk,
+               retval = mtd_write(mtd, addr, dev->data_bytes_per_chunk,
                                &dummy, data);
        else if (spare) {
-               if (dev->useNANDECC) {
+               if (dev->param.use_nand_ecc) {
                        translate_spare2oob(spare, spareAsBytes);
-                       ops.mode = MTD_OOB_AUTO;
+                       ops.mode = MTD_OPS_AUTO_OOB;
                        ops.ooblen = 8; /* temp hack */
                } else {
-                       ops.mode = MTD_OOB_RAW;
+                       ops.mode = MTD_OPS_RAW;
                        ops.ooblen = YAFFS_BYTES_PER_SPARE;
                }
-               ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
+               ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen;
                ops.datbuf = (u8 *)data;
                ops.ooboffs = 0;
                ops.oobbuf = spareAsBytes;
-               retval = mtd->write_oob(mtd, addr, &ops);
-       }
-#else
-       __u8 *spareAsBytes = (__u8 *) spare;
-
-       if (data && spare) {
-               if (dev->useNANDECC)
-                       retval =
-                           mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
-                                          &dummy, data, spareAsBytes,
-                                          &yaffs_oobinfo);
-               else
-                       retval =
-                           mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
-                                          &dummy, data, spareAsBytes,
-                                          &yaffs_noeccinfo);
-       } else {
-               if (data)
-                       retval =
-                           mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
-                                      data);
-               if (spare)
-                       retval =
-                           mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
-                                          &dummy, spareAsBytes);
+               retval = mtd_write_oob(mtd, addr, &ops);
        }
-#endif
 
        if (retval == 0)
                return YAFFS_OK;
@@ -138,69 +94,36 @@ int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
                return YAFFS_FAIL;
 }
 
-int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
-                             yaffs_Spare * spare)
+int nandmtd_ReadChunkFromNAND(struct yaffs_dev *dev, int chunkInNAND, u8 *data,
+                             struct yaffs_spare *spare)
 {
-       struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+       struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
        struct mtd_oob_ops ops;
-#endif
        size_t dummy;
        int retval = 0;
 
-       loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-       __u8 spareAsBytes[8]; /* OOB */
+       loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk;
+       u8 spareAsBytes[8]; /* OOB */
 
        if (data && !spare)
-               retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
+               retval = mtd_read(mtd, addr, dev->data_bytes_per_chunk,
                                &dummy, data);
        else if (spare) {
-               if (dev->useNANDECC) {
-                       ops.mode = MTD_OOB_AUTO;
+               if (dev->param.use_nand_ecc) {
+                       ops.mode = MTD_OPS_AUTO_OOB;
                        ops.ooblen = 8; /* temp hack */
                } else {
-                       ops.mode = MTD_OOB_RAW;
+                       ops.mode = MTD_OPS_RAW;
                        ops.ooblen = YAFFS_BYTES_PER_SPARE;
                }
-               ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
+               ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen;
                ops.datbuf = data;
                ops.ooboffs = 0;
                ops.oobbuf = spareAsBytes;
-               retval = mtd->read_oob(mtd, addr, &ops);
-               if (dev->useNANDECC)
+               retval = mtd_read_oob(mtd, addr, &ops);
+               if (dev->param.use_nand_ecc)
                        translate_oob2spare(spare, spareAsBytes);
        }
-#else
-       __u8 *spareAsBytes = (__u8 *) spare;
-
-       if (data && spare) {
-               if (dev->useNANDECC) {
-                       /* Careful, this call adds 2 ints */
-                       /* to the end of the spare data.  Calling function */
-                       /* should allocate enough memory for spare, */
-                       /* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */
-                       retval =
-                           mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
-                                         &dummy, data, spareAsBytes,
-                                         &yaffs_oobinfo);
-               } else {
-                       retval =
-                           mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
-                                         &dummy, data, spareAsBytes,
-                                         &yaffs_noeccinfo);
-               }
-       } else {
-               if (data)
-                       retval =
-                           mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
-                                     data);
-               if (spare)
-                       retval =
-                           mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
-                                         &dummy, spareAsBytes);
-       }
-#endif
 
        if (retval == 0)
                return YAFFS_OK;
@@ -208,18 +131,18 @@ int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
                return YAFFS_FAIL;
 }
 
-int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
+int nandmtd_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber)
 {
-       struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+       struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
        __u32 addr =
-           ((loff_t) blockNumber) * dev->nDataBytesPerChunk
-               * dev->nChunksPerBlock;
+           ((loff_t) blockNumber) * dev->data_bytes_per_chunk
+               * dev->param.chunks_per_block;
        struct erase_info ei;
        int retval = 0;
 
        ei.mtd = mtd;
        ei.addr = addr;
-       ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock;
+       ei.len = dev->data_bytes_per_chunk * dev->param.chunks_per_block;
        ei.time = 1000;
        ei.retries = 2;
        ei.callback = NULL;
@@ -227,12 +150,8 @@ int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
 
        /* Todo finish off the ei if required */
 
-/* XXX U-BOOT XXX */
-#if 0
-       sema_init(&dev->sem, 0);
-#endif
 
-       retval = mtd->erase(mtd, &ei);
+       retval = mtd_erase(mtd, &ei);
 
        if (retval == 0)
                return YAFFS_OK;
@@ -240,7 +159,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
                return YAFFS_FAIL;
 }
 
-int nandmtd_InitialiseNAND(yaffs_Device * dev)
+int nandmtd_InitialiseNAND(struct yaffs_dev *dev)
 {
        return YAFFS_OK;
 }