redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

mtd: mtdram: Add parameter for setting writebuf size 

ubifs uses the write buffer size in recovery algorithm. When inspecting
an unclean ubifs recovery fails with writebuf size 64 in mtdram while
recovery on actual mtd device with writebuf size of 1024 succeeds.
So add a parameter for setting this property.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
steinar/wifi_calib_4_9_kernel
Alexander Stein 2016-03-02 16:26:59 +01:00 committed by Brian Norris
parent 4cf9339d20
commit c67682c5e0
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/mtd/devices/mtdram.c
View File

@ -19,6 +19,7 @@
static unsigned long total_size = CONFIG_MTDRAM_TOTAL_SIZE;
static unsigned long erase_size = CONFIG_MTDRAM_ERASE_SIZE;
static unsigned long writebuf_size = 64;
#define MTDRAM_TOTAL_SIZE (total_size * 1024)
#define MTDRAM_ERASE_SIZE (erase_size * 1024)
@ -27,6 +28,8 @@ module_param(total_size, ulong, 0);
MODULE_PARM_DESC(total_size, "Total device size in KiB");
module_param(erase_size, ulong, 0);
MODULE_PARM_DESC(erase_size, "Device erase block size in KiB");
module_param(writebuf_size, ulong, 0);
MODULE_PARM_DESC(writebuf_size, "Device write buf size in Bytes (Default: 64)");
#endif
// We could store these in the mtd structure, but we only support 1 device..
@ -123,7 +126,7 @@ int mtdram_init_device(struct mtd_info *mtd, void *mapped_address,
mtd->flags = MTD_CAP_RAM;
mtd->size = size;
mtd->writesize = 1;
mtd->writebufsize = 64; /* Mimic CFI NOR flashes */
mtd->writebufsize = writebuf_size;
mtd->erasesize = MTDRAM_ERASE_SIZE;
mtd->priv = mapped_address;