diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.7/0112-MTD-lantiq-xway-fix-NAND-reset-timeout-handling.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.7/0112-MTD-lantiq-xway-fix-NAND-reset-timeout-handling.patch | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/target/linux/lantiq/patches-3.7/0112-MTD-lantiq-xway-fix-NAND-reset-timeout-handling.patch b/target/linux/lantiq/patches-3.7/0112-MTD-lantiq-xway-fix-NAND-reset-timeout-handling.patch deleted file mode 100644 index ac837e4ffa..0000000000 --- a/target/linux/lantiq/patches-3.7/0112-MTD-lantiq-xway-fix-NAND-reset-timeout-handling.patch +++ /dev/null @@ -1,42 +0,0 @@ -From d8d9b9055d704d6f84ef6346d6826b8a9640f209 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Mon, 22 Oct 2012 10:25:39 +0200 -Subject: [PATCH 112/123] MTD: lantiq: xway: fix NAND reset timeout handling - -Fixes a possible deadlock in the code that resets the NAND flash. - -http://lists.infradead.org/pipermail/linux-mtd/2012-September/044240.html - -Signed-off-by: John Crispin <blogic@openwrt.org> ---- - drivers/mtd/nand/xway_nand.c | 12 ++++++++++-- - 1 file changed, 10 insertions(+), 2 deletions(-) - ---- a/drivers/mtd/nand/xway_nand.c -+++ b/drivers/mtd/nand/xway_nand.c -@@ -58,15 +58,23 @@ static void xway_reset_chip(struct nand_ - { - unsigned long nandaddr = (unsigned long) chip->IO_ADDR_W; - unsigned long flags; -+ unsigned long timeout; - - nandaddr &= ~NAND_WRITE_ADDR; - nandaddr |= NAND_WRITE_CMD; - - /* finish with a reset */ -+ timeout = jiffies + msecs_to_jiffies(200); -+ - spin_lock_irqsave(&ebu_lock, flags); -+ - writeb(NAND_WRITE_CMD_RESET, (void __iomem *) nandaddr); -- while ((ltq_ebu_r32(EBU_NAND_WAIT) & NAND_WAIT_WR_C) == 0) -- ; -+ do { -+ if ((ltq_ebu_r32(EBU_NAND_WAIT) & NAND_WAIT_WR_C) == 0) -+ break; -+ cond_resched(); -+ } while (!time_after_eq(jiffies, timeout)); -+ - spin_unlock_irqrestore(&ebu_lock, flags); - } - |