Hi Ruud,
Ruud Commandeur wrote:
> Once the size of the set_cluster call equals 0, the mmc command is
> incomplete and times out. In the earlier reported problem, a patch is
> mentioned, but not available for dowload here. Also in the latest
> versions of the git repository I could not find a patch for this
> problem. Can anyone tell me if there is a fix for this problem?
I asked Damien Huang (back then) and got the following reply (I think there was
some character encoding problem so his mail never was accepted by the list).
I have not further analyzed the contents, anyway it wasn't the solution to my
problem.
BR // Mats
Damien Huang wrote:
As requested from Mats, I am resending this email. The patch is given below:
diff -cr ./u-boot-original/u-boot/fs/fat/fat_write.c
./u-boot-test/u-boot/fs/fat/fat_write.c
*** ./u-boot-original/u-boot/fs/fat/fat_write.c 2013-02-07
14:47:33.314732999 +1100
--- ./u-boot-test/u-boot/fs/fat/fat_write.c 2013-02-28 15:36:24.551861920
+1100
***************
*** 562,596 ****
{
int idx = 0;
__u32 startsect;
!
! if (clustnum > 0)
! startsect = mydata->data_begin +
! clustnum * mydata->clust_size;
! else
! startsect = mydata->rootdir_sect;
!
! debug("clustnum: %d, startsect: %d\n", clustnum, startsect);
!
! if (disk_write(startsect, size / mydata->sect_size, buffer) < 0) {
! debug("Error writing data\n");
! return -1;
! }
!
! if (size % mydata->sect_size) {
! __u8 tmpbuf[mydata->sect_size];
!
! idx = size / mydata->sect_size;
! buffer += idx * mydata->sect_size;
! memcpy(tmpbuf, buffer, size % mydata->sect_size);
!
! if (disk_write(startsect + idx, 1, tmpbuf) < 0) {
! debug("Error writing data\n");
! return -1;
! }
!
! return 0;
! }
!
return 0;
}
--- 562,595 ----
{
int idx = 0;
__u32 startsect;
! if(size) //if there are data to be set
! {
! if (clustnum > 0)
! startsect = mydata->data_begin +
! clustnum * mydata->clust_size;
! else
! startsect = mydata->rootdir_sect;
!
! debug("clustnum: %d, startsect: %d\n", clustnum, startsect);
!
! if (disk_write(startsect, size / mydata->sect_size, buffer) < 0) {
! debug("Error writing data\n");
! return -1;
! }
!
! if (size % mydata->sect_size) {
! __u8 tmpbuf[mydata->sect_size];
!
! idx = size / mydata->sect_size;
! buffer += idx * mydata->sect_size;
! memcpy(tmpbuf, buffer, size % mydata->sect_size);
!
! if (disk_write(startsect + idx, 1, tmpbuf) < 0) {
! debug("Error writing data\n");
! return -1;
! }
! }
! }//end if data to be set
return 0;
}
diff -cr ./u-boot-original/u-boot/include/configs/am335x_evm.h
./u-boot-test/u-boot/include/configs/am335x_evm.h
*** ./u-boot-original/u-boot/include/configs/am335x_evm.h 2013-02-07
14:47:35.754702325 +1100
--- ./u-boot-test/u-boot/include/configs/am335x_evm.h 2013-03-01
12:25:23.942104474 +1100
***************
*** 143,148 ****
--- 143,149 ----
#define CONFIG_CMD_MMC
#define CONFIG_DOS_PARTITION
#define CONFIG_FS_FAT
+ #define CONFIG_FAT_WRITE
#define CONFIG_FS_EXT4
#define CONFIG_CMD_FAT
#define CONFIG_CMD_EXT2
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