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authorLuka Perkov <luka@openwrt.org>2014-02-11 02:07:44 +0000
committerLuka Perkov <luka@openwrt.org>2014-02-11 02:07:44 +0000
commitc9ae111a20be4c9555128cced8edded660d133df (patch)
treefd4809b562d454394cbb9ec517bf3f1ef2d5b6f2 /target/linux/mvebu/patches-3.10/0141-mtd-nand-pxa3xx-Use-waitfunc-to-wait-for-the-device-.patch
parent3af779eb172b0438f77e8a01a97dd0eb9a146076 (diff)
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mvebu: backport mainline patches from kernel 3.13
This is a backport of the patches accepted to the Linux mainline related to mvebu SoC (Armada XP and Armada 370) between Linux v3.12, and Linux v3.13. This work mainly covers: * Finishes work for sharing the pxa nand driver(drivers/mtd/nand/pxa3xx_nand.c) between the PXA family, and the Armada family. * timer initialization update, and access function for the Armada family. * Generic IRQ handling backporting. * Some bug fixes. Signed-off-by: Seif Mazareeb <seif.mazareeb@gmail.com> CC: Luka Perkov <luka@openwrt.org> SVN-Revision: 39566
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0141-mtd-nand-pxa3xx-Use-waitfunc-to-wait-for-the-device-.patch')
-rw-r--r--target/linux/mvebu/patches-3.10/0141-mtd-nand-pxa3xx-Use-waitfunc-to-wait-for-the-device-.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0141-mtd-nand-pxa3xx-Use-waitfunc-to-wait-for-the-device-.patch b/target/linux/mvebu/patches-3.10/0141-mtd-nand-pxa3xx-Use-waitfunc-to-wait-for-the-device-.patch
new file mode 100644
index 0000000..13fdffe
--- /dev/null
+++ b/target/linux/mvebu/patches-3.10/0141-mtd-nand-pxa3xx-Use-waitfunc-to-wait-for-the-device-.patch
@@ -0,0 +1,34 @@
+From 2a1254f505ca4d376eae81768e4d5d890b578d13 Mon Sep 17 00:00:00 2001
+From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
+Date: Thu, 14 Nov 2013 18:25:27 -0300
+Subject: [PATCH 141/203] mtd: nand: pxa3xx: Use waitfunc() to wait for the
+ device to be ready
+
+In pxa3xx_nand_sensing() instead of simply using info->is_ready
+after issuing a command, the correct way of checking is to wait
+for the device to be ready through the chip's waitfunc().
+
+Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
+Tested-by: Daniel Mack <zonque@gmail.com>
+Signed-off-by: Brian Norris <computersforpeace@gmail.com>
+---
+ drivers/mtd/nand/pxa3xx_nand.c | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+--- a/drivers/mtd/nand/pxa3xx_nand.c
++++ b/drivers/mtd/nand/pxa3xx_nand.c
+@@ -1040,10 +1040,11 @@ static int pxa3xx_nand_sensing(struct px
+ return ret;
+
+ chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0);
+- if (!info->need_wait)
+- return 0;
++ ret = chip->waitfunc(mtd, chip);
++ if (ret & NAND_STATUS_FAIL)
++ return -ENODEV;
+
+- return -ENODEV;
++ return 0;
+ }
+
+ static int pxa3xx_nand_scan(struct mtd_info *mtd)