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xilffs : Use data cache

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Change xilffs library to support data cache.
Dont disable data cache in the example.

Signed-off-by: Harini Katakam <harinik@xilinx.com>
Acked-by: Anirudha Sarangi <anirudh@xilinx.com>
This commit is contained in:
Harini Katakam 2014-08-04 13:02:48 +05:30 • committed by Jagannadha Sutradharudu Teki
parent c7905e97cb
commit 831df57b90
3 changed files with 24 additions and 4 deletions
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13
lib/sw_services/xilffs/examples/xilffs_polled_example.c
View file

@ -48,6 +48,7 @@
* Ver Who Date Changes
* ----- --- -------- -----------------------------------------------
* 1.00a hk 10/17/13 First release
* 2.2 hk 07/28/14 Make changes to enable use of data cache.
*
*</pre>
*
@ -76,8 +77,17 @@ static FIL fil; /* File object */
static FATFS fatfs;
static char FileName[32] = "Test.bin";
static char *SD_File;
#ifdef __ICCARM__
#pragma data_alignment = 32
u8 DestinationAddress[10*1024*1024];
u8 SourceAddress[10*1024*1024];
#pragma data_alignment = 4
#else
u8 DestinationAddress[10*1024*1024] __attribute__ ((aligned(32)));
u8 SourceAddress[10*1024*1024] __attribute__ ((aligned(32)));
#endif
#define TEST 7
/*****************************************************************************/
@ -133,9 +143,6 @@ int FfsSdPolledExample(void)
u32 BuffCnt;
u32 FileSize = (8*1024*1024);
Xil_DCacheFlush();
Xil_DCacheDisable();
for(BuffCnt = 0; BuffCnt < FileSize; BuffCnt++){
SourceAddress[BuffCnt] = TEST + BuffCnt;
}

1
lib/sw_services/xilffs/src/diskio.c
View file

@ -64,6 +64,7 @@
* 2.1 hk 04/16/14 Move check for ExtCSD high speed bit set inside if
* condition for high speed support.
* Include xil_types.h irrespective of xsdps.h. CR# 797086.
* 2.2 hk 07/28/14 Make changes to enable use of data cache.
*
* </pre>
*

14
lib/sw_services/xilffs/src/include/ff.h
View file

@ -297,7 +297,13 @@ typedef struct {
DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
DWORD database; /* Data start sector */
DWORD winsect; /* Current sector appearing in the win[] */
BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and Data on tiny cfg) */
#ifdef __ICCARM__
#pragma data_alignment = 32
BYTE win[_MAX_SS];
#pragma data_alignment = 4
#else
BYTE win[_MAX_SS] __attribute__ ((aligned(32))); /* Disk access window for Directory, FAT (and Data on tiny cfg) */
#endif
} FATFS;
@ -325,7 +331,13 @@ typedef struct {
UINT lockid; /* File lock ID (index of file semaphore table) */
#endif
#if !_FS_TINY
#ifdef __ICCARM__
#pragma data_alignment = 32
BYTE buf[_MAX_SS]; /* File data read/write buffer */
#pragma data_alignment = 4
#else
BYTE buf[_MAX_SS] __attribute__ ((aligned(32))); /* File data read/write buffer */
#endif
#endif
} FIL;