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| author | Luka Perkov <luka@openwrt.org> | 2014-02-11 02:07:44 +0000 |
|---|---|---|
| committer | Luka Perkov <luka@openwrt.org> | 2014-02-11 02:07:44 +0000 |
| commit | c9ae111a20be4c9555128cced8edded660d133df (patch) | |
| tree | fd4809b562d454394cbb9ec517bf3f1ef2d5b6f2 /target/linux/mvebu/patches-3.10/0129-mtd-nand-pxa3xx-Move-DMA-I-O-enabling.patch | |
| parent | 3af779eb172b0438f77e8a01a97dd0eb9a146076 (diff) | |
| download | mtk-20170518-c9ae111a20be4c9555128cced8edded660d133df.zip mtk-20170518-c9ae111a20be4c9555128cced8edded660d133df.tar.gz mtk-20170518-c9ae111a20be4c9555128cced8edded660d133df.tar.bz2 | |
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-3.10/0129-mtd-nand-pxa3xx-Move-DMA-I-O-enabling.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0129-mtd-nand-pxa3xx-Move-DMA-I-O-enabling.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0129-mtd-nand-pxa3xx-Move-DMA-I-O-enabling.patch b/target/linux/mvebu/patches-3.10/0129-mtd-nand-pxa3xx-Move-DMA-I-O-enabling.patch new file mode 100644 index 0000000..0c95a61 --- /dev/null +++ b/target/linux/mvebu/patches-3.10/0129-mtd-nand-pxa3xx-Move-DMA-I-O-enabling.patch @@ -0,0 +1,40 @@ +From 18166290599760e8ff1b6c0389834beafd09a517 Mon Sep 17 00:00:00 2001 +From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> +Date: Fri, 4 Oct 2013 15:30:37 -0300 +Subject: [PATCH 129/203] mtd: nand: pxa3xx: Move DMA I/O enabling + +Instead of setting info->dma each time a command is prepared, +we can move it after the DMA buffers are allocated. + +This is more clear and it's the proper place to enable this, given +DMA cannot be turned on and off during runtime. + +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 | 6 +++++- + 1 file changed, 5 insertions(+), 1 deletion(-) + +--- a/drivers/mtd/nand/pxa3xx_nand.c ++++ b/drivers/mtd/nand/pxa3xx_nand.c +@@ -540,7 +540,6 @@ static int prepare_command_pool(struct p + info->oob_size = 0; + info->use_ecc = 0; + info->use_spare = 1; +- info->use_dma = (use_dma) ? 1 : 0; + info->is_ready = 0; + info->retcode = ERR_NONE; + if (info->cs != 0) +@@ -950,6 +949,11 @@ static int pxa3xx_nand_init_buff(struct + return info->data_dma_ch; + } + ++ /* ++ * Now that DMA buffers are allocated we turn on ++ * DMA proper for I/O operations. ++ */ ++ info->use_dma = 1; + return 0; + } + |