diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 36 |
1 files changed, 36 insertions, 0 deletions
@@ -737,6 +737,42 @@ The following options need to be configured: Note that if the RTC uses I2C, then the I2C interface must also be configured. See I2C Support, below. + - Rockbox FAT Filesystem Driver: + U-Boot includes a port of the FAT filesystem driver from the + Rockbox project (www.rockbox.org). To configure U-Boot to + use thus driver (and to NOT use the default FAT12/16/32 + read-only driver), define CONFIG_ROCKBOX_FAT along with + CONFIG_CMD_FAT. + + Note that the rockbox FAT driver does not support FAT12, but + it does support FAT16 and FAT32 (with long file names) and you + get FAT read and write functionality too. + + CFG_ROCKBOX_FAT_MAX_OPEN_FILES (optional) - define this to + specify the maximum number of files that may be open at one + time. The default is 1. This should be sufficient unless you + are planning to use the posix-like interface to a FAT + filesystem and need more than one file open at a time. + + CFG_ROCKBOX_FAT_MAX_OPEN_DIRS (optional) - define this to + specify the maximum number of simultaneously open directories. + The default is 8. + + CFG_ROCKBOX_FAT_MAX_SECS_PER_XFER (optional) - define this + parameter in order to allow the filesystem driver to request + transfer (read or write) of more than 256 sectors per transfer + request. If you override the default, MAKE SURE that your + disk driver can handle more than 256 sectors per transfer + request. + + The rockbox driver expects to set the 'errno' variable, so + your BSP needs to declare it as follows: + + int errno; + + If you want to include strerror() support, define + CONFIG_STRERROR. + - GPIO Support: CONFIG_PCA953X - use NXP's PCA953X series I2C GPIO CONFIG_PCA953X_INFO - enable pca953x info command |