openwrtv4/target/linux/generic/patches-4.4/461-mtd-cfi_cmdset_0002-add-buffer-write-cmd-timeout.patch
Jonas Gorski 621677154f kernel: add linux 4.4 support
Based on 4.4-rc3. Runtime tested on MIPS.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 47701
2015-12-02 22:23:22 +00:00

18 lines
556 B
Diff

From: George Kashperko <george@znau.edu.ua>
Issue map read after Write Buffer Load command to ensure chip is ready
to receive data.
Signed-off-by: George Kashperko <george@znau.edu.ua>
---
drivers/mtd/chips/cfi_cmdset_0002.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1830,6 +1830,7 @@ static int __xipram do_write_buffer(stru
/* Write Buffer Load */
map_write(map, CMD(0x25), cmd_adr);
+ (void) map_read(map, cmd_adr);
chip->state = FL_WRITING_TO_BUFFER;