Incorporate yaffs2 into U-boot

To use YAFFS2 define CONFIG_YAFFS2

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

1 files changed, 288 insertions, 15 deletions

diff --git a/fs/yaffs2/direct/yaffscfg.c b/fs/yaffs2/direct/yaffscfg.c
index b1d311e..a4a0924 100644
--- a/fs/yaffs2/direct/yaffscfg.c
+++ b/fs/yaffs2/direct/yaffscfg.c
@@ -18,17 +18,34 @@
  * There is no need to redistribute this file.
  */
 
+/* XXX U-BOOT XXX */
+#include <common.h>
+
+#include <config.h>
+#include "nand.h"
 #include "yaffscfg.h"
 #include "yaffsfs.h"
+#include "yaffs_packedtags2.h"
+#include "yaffs_mtdif.h"
+#include "yaffs_mtdif2.h"
+#if 0
 #include <errno.h>
+#else
+#include "malloc.h"
+#endif
 
 unsigned yaffs_traceMask = 0xFFFFFFFF;
-
+static int yaffs_errno = 0;
 
 void yaffsfs_SetError(int err)
 {
 	//Do whatever to set error
-	errno = err;
+	yaffs_errno = err;
+}
+
+int yaffsfs_GetError(void)
+{
+	return yaffs_errno;
 }
 
 void yaffsfs_Lock(void)
@@ -71,27 +88,47 @@ void yaffsfs_LocalInitialisation(void)
 #include "yaffs_ramdisk.h"
 #include "yaffs_flashif.h"
 
+static int isMounted = 0;
+#define MOUNT_POINT "/flash"
+extern nand_info_t nand_info[];
+
+/* XXX U-BOOT XXX */
+#if 0
 static yaffs_Device ramDev;
 static yaffs_Device bootDev;
 static yaffs_Device flashDev;
+#endif
 
 static yaffsfs_DeviceConfiguration yaffsfs_config[] = {
-
+/* XXX U-BOOT XXX */
+#if 0
 	{ "/ram", &ramDev},
 	{ "/boot", &bootDev},
 	{ "/flash", &flashDev},
+#else
+	{ MOUNT_POINT, 0},
+#endif
 	{(void *)0,(void *)0}
 };
 
 
 int yaffs_StartUp(void)
 {
+	struct mtd_info *mtd = &nand_info[0];
+	int yaffsVersion = 2;
+	int nBlocks;
+
+	yaffs_Device *flashDev = calloc(1, sizeof(yaffs_Device));
+	yaffsfs_config[0].dev = flashDev;
+
 	// Stuff to configure YAFFS
 	// Stuff to initialise anything special (eg lock semaphore).
 	yaffsfs_LocalInitialisation();
 	
 	// Set up devices
 
+/* XXX U-BOOT XXX */
+#if 0
 	// /ram
 	ramDev.nBytesPerChunk = 512;
 	ramDev.nChunksPerBlock = 32;
@@ -119,20 +156,50 @@ int yaffs_StartUp(void)
 	bootDev.readChunkFromNAND = yflash_ReadChunkFromNAND;
 	bootDev.eraseBlockInNAND = yflash_EraseBlockInNAND;
 	bootDev.initialiseNAND = yflash_InitialiseNAND;
+#endif
 
 		// /flash
-	flashDev.nBytesPerChunk =  512;
-	flashDev.nChunksPerBlock = 32;
-	flashDev.nReservedBlocks = 5;
-	flashDev.startBlock = 128; // First block after 2MB
-	flashDev.endBlock = 1023; // Last block in 16MB
-	flashDev.useNANDECC = 0; // use YAFFS's ECC
-	flashDev.nShortOpCaches = 10; // Use caches
-	flashDev.genericDevice = (void *) 2;	// Used to identify the device in fstat.
-	flashDev.writeChunkToNAND = yflash_WriteChunkToNAND;
-	flashDev.readChunkFromNAND = yflash_ReadChunkFromNAND;
-	flashDev.eraseBlockInNAND = yflash_EraseBlockInNAND;
-	flashDev.initialiseNAND = yflash_InitialiseNAND;
+	flashDev->nReservedBlocks = 5;
+//  flashDev->nShortOpCaches = (options.no_cache) ? 0 : 10;
+	flashDev->nShortOpCaches = 10; // Use caches
+	flashDev->useNANDECC = 0; // do not use YAFFS's ECC
+
+	if (yaffsVersion == 2)
+	{
+		flashDev->writeChunkWithTagsToNAND = nandmtd2_WriteChunkWithTagsToNAND;
+		flashDev->readChunkWithTagsFromNAND = nandmtd2_ReadChunkWithTagsFromNAND;
+		flashDev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad;
+		flashDev->queryNANDBlock = nandmtd2_QueryNANDBlock;
+		flashDev->spareBuffer = YMALLOC(mtd->oobsize);
+		flashDev->isYaffs2 = 1;
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+		flashDev->nDataBytesPerChunk = mtd->writesize;
+		flashDev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
+#else
+		flashDev->nDataBytesPerChunk = mtd->oobblock;
+		flashDev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
+#endif
+		nBlocks = mtd->size / mtd->erasesize;
+
+		flashDev->nCheckpointReservedBlocks = 10;
+		flashDev->startBlock = 0;
+		flashDev->endBlock = nBlocks - 1;
+	}
+	else
+	{
+		flashDev->writeChunkToNAND = nandmtd_WriteChunkToNAND;
+		flashDev->readChunkFromNAND = nandmtd_ReadChunkFromNAND;
+		flashDev->isYaffs2 = 0;
+		nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
+		flashDev->startBlock = 320;
+		flashDev->endBlock = nBlocks - 1;
+		flashDev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
+		flashDev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
+	}
+	
+	/* ... and common functions */
+	flashDev->eraseBlockInNAND = nandmtd_EraseBlockInNAND;
+	flashDev->initialiseNAND = nandmtd_InitialiseNAND;
 
 	yaffs_initialise(yaffsfs_config);
 	
@@ -140,5 +207,211 @@ int yaffs_StartUp(void)
 }
 
 
+void make_a_file(char *yaffsName,char bval,int sizeOfFile)
+{
+	int outh;
+	int i;
+	unsigned char buffer[100];
+
+	outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+	if (outh < 0)
+	{
+		printf("Error opening file: %d\n", outh);
+		return;
+	}
+	
+	memset(buffer,bval,100);
+	
+	do{
+		i = sizeOfFile;
+		if(i > 100) i = 100;
+		sizeOfFile -= i;
+		
+		yaffs_write(outh,buffer,i);
+		
+	} while (sizeOfFile > 0);
+	
+		
+	yaffs_close(outh);
+}
+
+void read_a_file(char *fn)
+{
+	int h;
+	int i = 0;
+	unsigned char b;
+
+	h = yaffs_open(fn, O_RDWR,0);
+	if(h<0)
+	{
+		printf("File not found\n");
+		return;
+	}
+
+	while(yaffs_read(h,&b,1)> 0)
+	{
+		printf("%02x ",b);
+		i++;
+		if(i > 32) 
+		{
+		   printf("\n");
+		   i = 0;;
+		 }
+	}
+	printf("\n");
+	yaffs_close(h);
+}
+
+void cmd_yaffs_mount(char *mp)
+{
+	yaffs_StartUp();
+	int retval = yaffs_mount(mp);
+	if( retval != -1)
+		isMounted = 1;
+	else
+		printf("Error mounting %s, return value: %d\n", mp, yaffsfs_GetError());
+}
+
+static void checkMount(void)
+{
+	if( !isMounted )
+	{
+		cmd_yaffs_mount(MOUNT_POINT);
+	}
+}
+
+void cmd_yaffs_umount(char *mp)
+{
+	checkMount();
+	if( yaffs_unmount(mp) == -1)
+		printf("Error umounting %s, return value: %d\n", mp, yaffsfs_GetError());
+}
+
+void cmd_yaffs_write_file(char *yaffsName,char bval,int sizeOfFile)
+{
+	checkMount();
+	make_a_file(yaffsName,bval,sizeOfFile);
+}
 
 
+void cmd_yaffs_read_file(char *fn)
+{
+	checkMount();
+	read_a_file(fn);
+}
+
+
+void cmd_yaffs_mread_file(char *fn, char *addr)
+{
+	int h;
+	struct yaffs_stat s;
+	
+	checkMount();
+
+	yaffs_stat(fn,&s);
+
+	printf ("Copy %s to 0x%08x... ", fn, addr);
+	h = yaffs_open(fn, O_RDWR,0);
+	if(h<0)
+	{
+		printf("File not found\n");
+		return;
+	}
+				
+	yaffs_read(h,addr,(int)s.st_size);
+	printf("\t[DONE]\n");
+
+	yaffs_close(h);
+}
+
+
+void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
+{
+	int outh;
+
+	checkMount();
+	outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+	if (outh < 0)
+	{
+		printf("Error opening file: %d\n", outh);
+	}
+	
+	yaffs_write(outh,addr,size);
+	
+	yaffs_close(outh);
+}
+
+
+void cmd_yaffs_ls(const char *mountpt, int longlist)
+{
+	int i;
+	yaffs_DIR *d;
+	yaffs_dirent *de;
+	struct yaffs_stat stat;
+	char tempstr[255];
+
+	checkMount();
+	d = yaffs_opendir(mountpt);
+
+	if(!d)
+	{
+		printf("opendir failed\n");
+	}
+	else
+	{
+		for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
+		{
+			if (longlist)
+			{
+				sprintf(tempstr, "%s/%s", mountpt, de->d_name);
+				yaffs_stat(tempstr, &stat);
+				printf("%-25s\t%7d\n",de->d_name, stat.st_size);
+			}
+			else
+			{
+				printf("%s\n",de->d_name);
+			}
+		}
+	}
+}
+
+
+void cmd_yaffs_mkdir(const char *dir)
+{
+	checkMount();
+
+	int retval = yaffs_mkdir(dir, 0);
+	
+	if ( retval < 0)
+		printf("yaffs_mkdir returning error: %d\n", retval);
+}
+
+void cmd_yaffs_rmdir(const char *dir)
+{
+	checkMount();
+
+	int retval = yaffs_rmdir(dir);
+	
+	if ( retval < 0)
+		printf("yaffs_rmdir returning error: %d\n", retval);
+}
+
+void cmd_yaffs_rm(const char *path)
+{
+	checkMount();
+
+	int retval = yaffs_unlink(path);
+	
+	if ( retval < 0)
+		printf("yaffs_unlink returning error: %d\n", retval);
+}
+
+void cmd_yaffs_mv(const char *oldPath, const char *newPath)
+{
+	checkMount();
+
+	int retval = yaffs_rename(newPath, oldPath);
+	
+	if ( retval < 0)
+		printf("yaffs_unlink returning error: %d\n", retval);
+}