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fat: Define MAX_CLUSTSIZE using CONFIG_FS_FAT_MAX_CLUSTSIZE
Define the MAX_CLUSTSIZE to default of 65536 only if CONFIG_FS_FAT_MAX_CLUSTSIZE is not defined. This option has been provided to save memory in some memory constrained cases. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Acked-by: Michal Simek <monstr@monstr.eu>
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2 changed files with 11 additions and 1 deletions
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README
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README
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@ -1637,6 +1637,12 @@ CBFS (Coreboot Filesystem) support
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filesystem. Available commands are cbfsinit, cbfsinfo, cbfsls
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and cbfsload.
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- FAT(File Allocation Table) filesystem cluster size:
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CONFIG_FS_FAT_MAX_CLUSTSIZE
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Define the max cluster size for fat operations else
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a default value of 65536 will be defined.
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- Keyboard Support:
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CONFIG_ISA_KEYBOARD
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@ -18,7 +18,11 @@
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#define VFAT_MAXSEQ 9 /* Up to 9 of 13 2-byte UTF-16 entries */
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#define PREFETCH_BLOCKS 2
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#define MAX_CLUSTSIZE 65536
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#ifndef CONFIG_FS_FAT_MAX_CLUSTSIZE
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#define CONFIG_FS_FAT_MAX_CLUSTSIZE 65536
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#endif
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#define MAX_CLUSTSIZE CONFIG_FS_FAT_MAX_CLUSTSIZE
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#define DIRENTSPERBLOCK (mydata->sect_size / sizeof(dir_entry))
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#define DIRENTSPERCLUST ((mydata->clust_size * mydata->sect_size) / \
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sizeof(dir_entry))
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