int kerSysFlashSizeGet(void)
{
int ret = 0;
if( bootFromNand )
{
struct mtd_info *mtd;
if( (mtd = get_mtd_device_nm("rootfs")) != NULL )
{
ret = mtd->size;
put_mtd_device(mtd);
}
}
else
ret = flash_get_total_size();
return ret;
}
/***************************************************************************
* Function Name: display_flash_info
* Description : Displays information about the flash part.
* Returns : None.
***************************************************************************/
static void display_flash_info(int ret, flash_device_info_t *flash_info)
{
switch (flash_info->flash_type) {
case FLASH_IFC_PARALLEL:
printk( "Parallel flash device");
break;
case FLASH_IFC_SPI:
printk( "Serial flash device");
break;
case FLASH_IFC_HS_SPI:
printk( "HS Serial flash device");
break;
case FLASH_IFC_NAND:
printk( "NAND flash device");
break;
}
if( ret == FLASH_API_OK ) {
printk(": name %s, id 0x%4.4x",
flash_info->flash_device_name, flash_info->flash_device_id);
#if (INC_SPI_PROG_NAND==1)
printk(" block %dKB", flash_info->fn_flash_get_sector_size(0) / 1024);
printk(" size %luKB", (unsigned long )
flash_info->fn_flash_get_total_size() / 1024);
#else
if (flash_info->flash_type == FLASH_IFC_NAND)
printk(" block %dKB", flash_get_sector_size(0) / 1024);
printk(" size %luKB", flash_get_total_size() / 1024);
#endif
printk("\n");
}
else {
printk( " id %4.4x is not supported.\n", flash_info->flash_device_id );
}
} /* display_flash_info */
void flash_init_info(const NVRAM_DATA *nvRam, FLASH_ADDR_INFO *fInfo)
{
int i = 0;
int totalBlks = 0;
int totalSize = 0;
int auxFsSize = 0;
int psiStartAddr = 0;
int spStartAddr = 0;
int usedBlkSize = 0;
int needBytes = 0;
int sBlk, eBlk;
int blkSize, sectSize; /* Size of all blocks in a partition or 0 */
int totalPartSize; /* Size in bytes for a partition */
unsigned long offset; /* Offset calulations */
if (flash_get_flash_type() == FLASH_IFC_NAND)
{
/* When using NAND flash disable Bcm_flash */
totalSize = 0;
}
else {
totalBlks = flash_get_numsectors();
totalSize = flash_get_total_size();
printk("Total Flash size: %dK with %d sectors\n", totalSize/1024, totalBlks);
}
if (totalSize <= FLASH_LENGTH_BOOT_ROM) {
/* NAND flash settings. NAND flash does not use raw flash partitioins
* to store psi, backup psi, scratch pad and syslog. These data items
* are stored as files on a JFFS2 file system.
*/
if ((nvRam->ulPsiSize != -1) && (nvRam->ulPsiSize != 0))
fInfo->flash_persistent_length = nvRam->ulPsiSize * ONEK;
else
fInfo->flash_persistent_length = DEFAULT_PSI_SIZE * ONEK;
fInfo->flash_persistent_start_blk = 0;
fInfo->flash_rootfs_start_offset = 0;
fInfo->flash_scratch_pad_length = SP_MAX_LEN;
fInfo->flash_syslog_length = nvRam->ulSyslogSize * 1024;
/* This is a boolean field for NAND flash. */
fInfo->flash_backup_psi_number_blk = nvRam->backupPsi;
return;
}
/*
* calculate mandatory primary PSI size and set its fInfo parameters.
*/
if ((nvRam->ulPsiSize != -1) && (nvRam->ulPsiSize != 0))
fInfo->flash_persistent_length = nvRam->ulPsiSize * ONEK;
else
fInfo->flash_persistent_length = DEFAULT_PSI_SIZE * ONEK;
psiStartAddr = totalSize - fInfo->flash_persistent_length;
fInfo->flash_persistent_start_blk = flash_get_blk(FLASH_BASE+psiStartAddr);
fInfo->flash_persistent_number_blk = totalBlks - fInfo->flash_persistent_start_blk;
usedBlkSize = 0;
for (i = fInfo->flash_persistent_start_blk;
i < (fInfo->flash_persistent_start_blk + fInfo->flash_persistent_number_blk); i++)
{
usedBlkSize += flash_get_sector_size((unsigned short) i);
}
fInfo->flash_persistent_blk_offset = usedBlkSize - fInfo->flash_persistent_length;
fInfo->flash_meta_start_blk = fInfo->flash_persistent_start_blk;
/*
* Next is the optional scratch pad, which is on top of the primary PSI.
* Old code allowed scratch pad to share a sector with primary PSI.
* That is retained for backward compatibility. (Although depending on your
* NOR flash sector sizes, they may still be in different sectors.)
* If you have a new deployment, consider forcing separate sectors.
*/
if ((fInfo->flash_persistent_blk_offset > 0) &&
(fInfo->flash_persistent_blk_offset < SP_MAX_LEN))
{
/*
* there is some room left in the first persistent sector, but it is
* not big enough for the scratch pad. (Use this line unconditionally
* if you want to guarentee scratch pad and primary PSI are on different
* sectors.)
*/
spStartAddr = psiStartAddr - fInfo->flash_persistent_blk_offset - SP_MAX_LEN;
}
else
{
/* either the primary PSI starts on a sector boundary, or there is
* enough room at the top of the first sector for the scratch pad. */
spStartAddr = psiStartAddr - SP_MAX_LEN ;
}
fInfo->flash_scratch_pad_start_blk = flash_get_blk(FLASH_BASE+spStartAddr);
fInfo->flash_scratch_pad_length = SP_MAX_LEN;
if (fInfo->flash_persistent_start_blk == fInfo->flash_scratch_pad_start_blk) // share blk
{
#if 0 /* do not used scratch pad unless it's in its own sector */
printk("Scratch pad is not used for this flash part.\n");
fInfo->flash_scratch_pad_length = 0; // no sp
#else /* allow scratch pad to share a sector with another section such as PSI */
fInfo->flash_scratch_pad_number_blk = 1;
fInfo->flash_scratch_pad_blk_offset = fInfo->flash_persistent_blk_offset - fInfo->flash_scratch_pad_length;
#endif
}
else // on different blk
{
fInfo->flash_scratch_pad_number_blk = fInfo->flash_persistent_start_blk - fInfo->flash_scratch_pad_start_blk;
// find out the offset in the start_blk
usedBlkSize = 0;
for (i = fInfo->flash_scratch_pad_start_blk;
i < (fInfo->flash_scratch_pad_start_blk + fInfo->flash_scratch_pad_number_blk); i++)
usedBlkSize += flash_get_sector_size((unsigned short) i);
fInfo->flash_scratch_pad_blk_offset = usedBlkSize - fInfo->flash_scratch_pad_length;
}
if (fInfo->flash_scratch_pad_length > 0) {
fInfo->flash_meta_start_blk = fInfo->flash_scratch_pad_start_blk;
}
/*
* Next is the optional backup PSI.
*/
if (nvRam->backupPsi == 0x01)
{
needBytes = fInfo->flash_persistent_length;
i = fInfo->flash_meta_start_blk;
while (needBytes > 0)
{
i--;
needBytes -= flash_get_sector_size((unsigned short) i);
}
fInfo->flash_backup_psi_start_blk = i;
/* calclate how many blocks we actually consumed */
needBytes = fInfo->flash_persistent_length;
fInfo->flash_backup_psi_number_blk = 0;
while (needBytes > 0)
{
needBytes -= flash_get_sector_size((unsigned short) i);
i++;
fInfo->flash_backup_psi_number_blk++;
}
fInfo->flash_meta_start_blk = fInfo->flash_backup_psi_start_blk;
}
else
{
fInfo->flash_backup_psi_number_blk = 0;
}
/*
* Next is the optional persistent syslog.
*/
if (nvRam->ulSyslogSize != 0 && nvRam->ulSyslogSize != -1)
{
fInfo->flash_syslog_length = nvRam->ulSyslogSize * 1024;
needBytes = fInfo->flash_syslog_length;
i = fInfo->flash_meta_start_blk;
while (needBytes > 0)
{
i--;
needBytes -= flash_get_sector_size((unsigned short) i);
}
fInfo->flash_syslog_start_blk = i;
/* calclate how many blocks we actually consumed */
needBytes = fInfo->flash_syslog_length;
fInfo->flash_syslog_number_blk = 0;
while (needBytes > 0)
{
needBytes -= flash_get_sector_size((unsigned short) i);
i++;
fInfo->flash_syslog_number_blk++;
}
fInfo->flash_meta_start_blk = fInfo->flash_syslog_start_blk;
}
else
{
fInfo->flash_syslog_length = 0;
fInfo->flash_syslog_number_blk = 0;
}
#if 1 //for AUXFS
if ( (nvRam->ucAuxFSPercent != 0)
&& (nvRam->ucAuxFSPercent <= MAX_AUXFS_PERCENT))
{
/* Estimate the Auxillary File System size */
auxFsSize = (totalSize * (int)nvRam->ucAuxFSPercent)/100;
/* JFFS_AUXFS offset */
offset = totalSize - auxFsSize - flash_get_reserved_bytes_at_end(fInfo);
sBlk = flash_get_blk(offset+FLASH_BASE);
eBlk = fInfo->flash_meta_start_blk;
/*
* Implementation Note:
* Ensure that we have even number of blocks for
* ROOTFS+KERNEL to support dual image booting
*/
if ( ( (sBlk+1) < eBlk)
&& ((((sBlk+1) - flash_get_blk(fInfo->flash_rootfs_start_offset + FLASH_BASE)) % 2) == 0))
{
sBlk += 1; /* Round up */
}
blkSize = flash_get_sector_size(sBlk);
for ( i=sBlk+1, totalPartSize = blkSize; i<eBlk; i++)
{
sectSize = flash_get_sector_size(i);
//if ( blkSize != sectSize ) blkSize = 0;
if ( blkSize != sectSize ) break;
totalPartSize += sectSize;
}
fAuxFsInfo.sect_size = blkSize;
auxFsSize = totalPartSize;
printk("Flash split %d : AuxFS[%d]\n",
(int)nvRam->ucAuxFSPercent,auxFsSize );
}
else
{
/*
* Implementation Note: When there is no AuxFS Partition.
* Total number of rootfs/kernel blocks will always be ODD.
* Option: Increase RESERVED section ??? but this would
* decrease the space available for a single kernel image
*/
sBlk = eBlk = 0;
fAuxFsInfo.sect_size = 0;
auxFsSize = 0;
printk("Flash not used for Auxillary File System\n");
}
/*------------*/
/* JFFS_AUXFS */
/*------------*/
sprintf(fAuxFsInfo.name, "JFFS_AUXFS");
fAuxFsInfo.start_blk = sBlk;
fAuxFsInfo.number_blk = eBlk - sBlk;
fAuxFsInfo.blk_offset = 0;
fAuxFsInfo.total_len = auxFsSize;
fAuxFsInfo.mem_base = (unsigned long) flash_get_memptr( sBlk )
+ fAuxFsInfo.blk_offset;
fAuxFsInfo.mem_length = auxFsSize;
#endif
#ifdef DEBUG_FLASH_TOO_MUCH
/* dump sizes of all sectors in flash */
for (i=0; i<totalBlks; i++)
printk("blk %03d: %d\n", i, flash_get_sector_size((unsigned short) i));
#endif
#if defined(DEBUG_FLASH)
printk("FLASH_BASE =0x%08x\n\n", (unsigned int)FLASH_BASE);
printk("fInfo->flash_rootfs_start_offset =0x%08x\n\n", (unsigned int)fInfo->flash_rootfs_start_offset);
printk("fInfo->flash_meta_start_blk = %d\n\n", fInfo->flash_meta_start_blk);
printk("fInfo->flash_syslog_start_blk = %d\n", fInfo->flash_syslog_start_blk);
printk("fInfo->flash_syslog_number_blk = %d\n", fInfo->flash_syslog_number_blk);
printk("fInfo->flash_syslog_length=0x%x\n\n", (unsigned int)fInfo->flash_syslog_length);
printk("fInfo->flash_backup_psi_start_blk = %d\n", fInfo->flash_backup_psi_start_blk);
printk("fInfo->flash_backup_psi_number_blk = %d\n\n", fInfo->flash_backup_psi_number_blk);
printk("sp startAddr = %x\n", (unsigned int) (FLASH_BASE+spStartAddr));
printk("fInfo->flash_scratch_pad_start_blk = %d\n", fInfo->flash_scratch_pad_start_blk);
printk("fInfo->flash_scratch_pad_number_blk = %d\n", fInfo->flash_scratch_pad_number_blk);
printk("fInfo->flash_scratch_pad_length = 0x%x\n", fInfo->flash_scratch_pad_length);
printk("fInfo->flash_scratch_pad_blk_offset = 0x%x\n\n", (unsigned int)fInfo->flash_scratch_pad_blk_offset);
printk("psi startAddr = %x\n", (unsigned int) (FLASH_BASE+psiStartAddr));
printk("fInfo->flash_persistent_start_blk = %d\n", fInfo->flash_persistent_start_blk);
printk("fInfo->flash_persistent_number_blk = %d\n", fInfo->flash_persistent_number_blk);
printk("fInfo->flash_persistent_length=0x%x\n", (unsigned int)fInfo->flash_persistent_length);
printk("fInfo->flash_persistent_blk_offset = 0x%x\n\n", (unsigned int)fInfo->flash_persistent_blk_offset);
printk("AuxFs.start_blk = %d\n",fAuxFsInfo.start_blk );
printk("AuxFs,number_blk = %d\n", fAuxFsInfo.number_blk);
printk("AuxFs.total_len = 0x%x\n",fAuxFsInfo.total_len);
printk("AuxFs.sect_size = 0x%x\n",fAuxFsInfo.sect_size);
#endif
}
void flash_init_info(const NVRAM_DATA *nvRam, FLASH_ADDR_INFO *fInfo)
{
int i = 0;
int totalBlks = 0;
int totalSize = 0;
int psiStartAddr = 0;
int spStartAddr = 0;
int usedBlkSize = 0;
int needBytes = 0;
if (flash_get_flash_type() == FLASH_IFC_NAND)
{
/* When using NAND flash disable Bcm_flash */
totalSize = 0;
}
else {
totalBlks = flash_get_numsectors();
totalSize = flash_get_total_size();
printk("Total Flash size: %dK with %d sectors\n", totalSize/1024, totalBlks);
}
if (totalSize <= FLASH_LENGTH_BOOT_ROM) {
/* NAND flash settings. NAND flash does not use raw flash partitioins
* to store psi, backup psi, scratch pad and syslog. These data items
* are stored as files on a JFFS2 file system.
*/
if ((nvRam->ulPsiSize != -1) && (nvRam->ulPsiSize != 0))
fInfo->flash_persistent_length = nvRam->ulPsiSize * ONEK;
else
fInfo->flash_persistent_length = DEFAULT_PSI_SIZE * ONEK;
fInfo->flash_persistent_start_blk = 0;
fInfo->flash_rootfs_start_offset = 0;
fInfo->flash_scratch_pad_length = SP_MAX_LEN;
fInfo->flash_syslog_length = nvRam->ulSyslogSize * 1024;
/* This is a boolean field for NAND flash. */
fInfo->flash_backup_psi_number_blk = nvRam->backupPsi;
return;
}
/*
* calculate mandatory primary PSI size and set its fInfo parameters.
*/
if ((nvRam->ulPsiSize != -1) && (nvRam->ulPsiSize != 0))
fInfo->flash_persistent_length = nvRam->ulPsiSize * ONEK;
else
fInfo->flash_persistent_length = DEFAULT_PSI_SIZE * ONEK;
psiStartAddr = totalSize - fInfo->flash_persistent_length;
fInfo->flash_persistent_start_blk = flash_get_blk(FLASH_BASE+psiStartAddr);
fInfo->flash_persistent_number_blk = totalBlks - fInfo->flash_persistent_start_blk;
usedBlkSize = 0;
for (i = fInfo->flash_persistent_start_blk;
i < (fInfo->flash_persistent_start_blk + fInfo->flash_persistent_number_blk); i++)
{
usedBlkSize += flash_get_sector_size((unsigned short) i);
}
fInfo->flash_persistent_blk_offset = usedBlkSize - fInfo->flash_persistent_length;
fInfo->flash_meta_start_blk = fInfo->flash_persistent_start_blk;
/*
* Next is the optional scratch pad, which is on top of the primary PSI.
* Old code allowed scratch pad to share a sector with primary PSI.
* That is retained for backward compatibility. (Although depending on your
* NOR flash sector sizes, they may still be in different sectors.)
* If you have a new deployment, consider forcing separate sectors.
*/
if ((fInfo->flash_persistent_blk_offset > 0) &&
(fInfo->flash_persistent_blk_offset < SP_MAX_LEN))
{
/*
* there is some room left in the first persistent sector, but it is
* not big enough for the scratch pad. (Use this line unconditionally
* if you want to guarentee scratch pad and primary PSI are on different
* sectors.)
*/
spStartAddr = psiStartAddr - fInfo->flash_persistent_blk_offset - SP_MAX_LEN;
}
else
{
/* either the primary PSI starts on a sector boundary, or there is
* enough room at the top of the first sector for the scratch pad. */
spStartAddr = psiStartAddr - SP_MAX_LEN ;
}
fInfo->flash_scratch_pad_start_blk = flash_get_blk(FLASH_BASE+spStartAddr);
fInfo->flash_scratch_pad_length = SP_MAX_LEN;
if (fInfo->flash_persistent_start_blk == fInfo->flash_scratch_pad_start_blk) // share blk
{
#if 0 /* do not used scratch pad unless it's in its own sector */
printk("Scratch pad is not used for this flash part.\n");
fInfo->flash_scratch_pad_length = 0; // no sp
#else /* allow scratch pad to share a sector with another section such as PSI */
fInfo->flash_scratch_pad_number_blk = 1;
fInfo->flash_scratch_pad_blk_offset = fInfo->flash_persistent_blk_offset - fInfo->flash_scratch_pad_length;
#endif
}
else // on different blk
{
fInfo->flash_scratch_pad_number_blk = fInfo->flash_persistent_start_blk - fInfo->flash_scratch_pad_start_blk;
// find out the offset in the start_blk
usedBlkSize = 0;
for (i = fInfo->flash_scratch_pad_start_blk;
i < (fInfo->flash_scratch_pad_start_blk + fInfo->flash_scratch_pad_number_blk); i++)
usedBlkSize += flash_get_sector_size((unsigned short) i);
fInfo->flash_scratch_pad_blk_offset = usedBlkSize - fInfo->flash_scratch_pad_length;
}
if (fInfo->flash_scratch_pad_length > 0) {
fInfo->flash_meta_start_blk = fInfo->flash_scratch_pad_start_blk;
}
/*
* Next is the optional backup PSI.
*/
if (nvRam->backupPsi == 0x01)
{
needBytes = fInfo->flash_persistent_length;
i = fInfo->flash_meta_start_blk;
while (needBytes > 0)
{
i--;
needBytes -= flash_get_sector_size((unsigned short) i);
}
fInfo->flash_backup_psi_start_blk = i;
/* calclate how many blocks we actually consumed */
needBytes = fInfo->flash_persistent_length;
fInfo->flash_backup_psi_number_blk = 0;
while (needBytes > 0)
{
needBytes -= flash_get_sector_size((unsigned short) i);
i++;
fInfo->flash_backup_psi_number_blk++;
}
fInfo->flash_meta_start_blk = fInfo->flash_backup_psi_start_blk;
}
else
{
fInfo->flash_backup_psi_number_blk = 0;
}
/*
* Next is the optional persistent syslog.
*/
if (nvRam->ulSyslogSize != 0 && nvRam->ulSyslogSize != -1)
{
fInfo->flash_syslog_length = nvRam->ulSyslogSize * 1024;
needBytes = fInfo->flash_syslog_length;
i = fInfo->flash_meta_start_blk;
while (needBytes > 0)
{
i--;
needBytes -= flash_get_sector_size((unsigned short) i);
}
fInfo->flash_syslog_start_blk = i;
/* calclate how many blocks we actually consumed */
needBytes = fInfo->flash_syslog_length;
fInfo->flash_syslog_number_blk = 0;
while (needBytes > 0)
{
needBytes -= flash_get_sector_size((unsigned short) i);
i++;
fInfo->flash_syslog_number_blk++;
}
fInfo->flash_meta_start_blk = fInfo->flash_syslog_start_blk;
}
else
{
fInfo->flash_syslog_length = 0;
fInfo->flash_syslog_number_blk = 0;
}
#ifdef DEBUG_FLASH_TOO_MUCH
/* dump sizes of all sectors in flash */
for (i=0; i<totalBlks; i++)
printk("blk %03d: %d\n", i, flash_get_sector_size((unsigned short) i));
#endif
#if defined(DEBUG_FLASH)
printk("FLASH_BASE =0x%08x\n\n", (unsigned int)FLASH_BASE);
printk("fInfo->flash_rootfs_start_offset =0x%08x\n\n", (unsigned int)fInfo->flash_rootfs_start_offset);
printk("fInfo->flash_meta_start_blk = %d\n\n", fInfo->flash_meta_start_blk);
printk("fInfo->flash_syslog_start_blk = %d\n", fInfo->flash_syslog_start_blk);
printk("fInfo->flash_syslog_number_blk = %d\n", fInfo->flash_syslog_number_blk);
printk("fInfo->flash_syslog_length=0x%x\n\n", (unsigned int)fInfo->flash_syslog_length);
printk("fInfo->flash_backup_psi_start_blk = %d\n", fInfo->flash_backup_psi_start_blk);
printk("fInfo->flash_backup_psi_number_blk = %d\n\n", fInfo->flash_backup_psi_number_blk);
printk("sp startAddr = %x\n", (unsigned int) (FLASH_BASE+spStartAddr));
printk("fInfo->flash_scratch_pad_start_blk = %d\n", fInfo->flash_scratch_pad_start_blk);
printk("fInfo->flash_scratch_pad_number_blk = %d\n", fInfo->flash_scratch_pad_number_blk);
printk("fInfo->flash_scratch_pad_length = 0x%x\n", fInfo->flash_scratch_pad_length);
printk("fInfo->flash_scratch_pad_blk_offset = 0x%x\n\n", (unsigned int)fInfo->flash_scratch_pad_blk_offset);
printk("psi startAddr = %x\n", (unsigned int) (FLASH_BASE+psiStartAddr));
printk("fInfo->flash_persistent_start_blk = %d\n", fInfo->flash_persistent_start_blk);
printk("fInfo->flash_persistent_number_blk = %d\n", fInfo->flash_persistent_number_blk);
printk("fInfo->flash_persistent_length=0x%x\n", (unsigned int)fInfo->flash_persistent_length);
printk("fInfo->flash_persistent_blk_offset = 0x%x\n\n", (unsigned int)fInfo->flash_persistent_blk_offset);
#endif
}