[PATCH v6 0/2] patch set about the MXS-DMA

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


patch 1: move the mxs dma header to a more common place.
	Beside the mx23/mx28, the apbh-dma is also used by MX50 and MX6Q.
	So move the mxs dma header file to a more common place, and rename
	it to mxs-dma.h

patch 2: rewrite the last parameter of mxs_dma_prep_slave_sg().
	In the new GPMI version, some hardware behavior changes.
	The WAIT4END bit should be set in the middle one of the ECC READ page DMA chain.
	The DMA chain should be set like this:

          +-----+               +-----+                      +-----+
          | cmd | ------------> | cmd | ------------------>  | cmd |
          +-----+               +-----+                      +-----+
                                   ^                            ^
                                   |                            |
                                   |                            |
                              set WAIT4END here too        set WAIT4END here

        So rewrite the last parameter of mxs_dma_prep_slave_sg(), use the
	dma_ctrl_flags to set the proper DMA bit for DMA Command Structure.
	And change the relative drivers with the dma_ctrl_flags.

TEST:
	Tested the mxs-mmc driver and gpmi-nand drive with the two patches
	in MX28 board.

v5 --> v6:
	[1] create this patch set based on the mainline.

v4 --> v5:
	[1] remove GPMI_IS_MX6Q(), make the mxs and mx6q use the same code.
		
v3 --> v4:
	[1] create a new folder include/linux/fsl/ for store the Freescale's
	    header files.
	[2] add more CCs.

v2 --> v3:
	[1] remove field gpmi_version, use GPMI_IS_MX6Q() instead.

v1 --> v2:
	[1] squash the trial patches into single patch.
	[2] use the dma_ctrl_flags.


Huang Shijie (2):
  mxs-dma : move the mxs dma.h to a more common place
  mxs-dma : rewrite the last parameter of mxs_dma_prep_slave_sg()

 drivers/dma/mxs-dma.c                              |   34 +++++++++++++++++---
 drivers/mmc/host/mxs-mmc.c                         |   12 +++---
 drivers/mtd/nand/gpmi-nand/gpmi-lib.c              |   19 +++++++---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.h             |    2 +-
 .../mach/dma.h => include/linux/fsl/mxs-dma.h      |    0
 sound/soc/mxs/mxs-pcm.c                            |    2 +-
 sound/soc/mxs/mxs-pcm.h                            |    2 +-
 sound/soc/mxs/mxs-saif.c                           |    2 +-
 8 files changed, 52 insertions(+), 21 deletions(-)
 rename arch/arm/mach-mxs/include/mach/dma.h => include/linux/fsl/mxs-dma.h (100%)

-- 
1.7.3.2


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


[Other Archives]     [Linux Kernel Newbies]     [Linux Driver Development]     [Fedora Kernel]     [Linux Kernel Testers]     [Linux SH]     [Linux Omap]     [Linux Kbuild]     [Linux Tape]     [Linux Input]     [Linux Kernel Janitors]     [Linux Kernel Packagers]     [Linux Doc]     [Linux Man Pages]     [Linux API]     [Linux Memory Management]     [Linux Modules]     [Linux Standards]     [Kernel Announce]     [Netdev]     [Git]     [Linux PCI]     Linux CAN Development     [Linux I2C]     [Linux RDMA]     [Linux NUMA]     [Netfilter]     [Netfilter Devel]     [SELinux]     [Bugtraq]     [FIO]     [Linux Perf Users]     [Linux Serial]     [Linux PPP]     [Linux ISDN]     [Linux Next]     [Kernel Stable Commits]     [Linux Tip Commits]     [Kernel MM Commits]     [Linux Security Module]     [Filesystem Development]     [Ext3 Filesystem]     [Linux bcache]     [Ext4 Filesystem]     [Linux BTRFS]     [Linux CEPH Filesystem]     [Linux XFS]     [XFS]     [Linux NFS]     [Linux CIFS]     [Ecryptfs]     [Linux NILFS]     [Linux Cachefs]     [Reiser FS]     [Initramfs]     [Linux FB Devel]     [Linux OpenGL]     [DRI Devel]     [Fastboot]     [Linux RT Users]     [Linux RT Stable]     [eCos]     [Corosync]     [Linux Clusters]     [LVS Devel]     [Hot Plug]     [Linux Virtualization]     [KVM]     [KVM PPC]     [KVM ia64]     [Linux Containers]     [Linux Hexagon]     [Linux Cgroups]     [Util Linux]     [Wireless]     [Linux Bluetooth]     [Bluez Devel]     [Ethernet Bridging]     [Embedded Linux]     [Barebox]     [Linux MMC]     [Linux IIO]     [Sparse]     [Smatch]     [Linux Arch]     [x86 Platform Driver]     [Linux ACPI]     [Linux IBM ACPI]     [LM Sensors]     [CPU Freq]     [Linux Power Management]     [Linmodems]     [Linux DCCP]     [Linux SCTP]     [ALSA Devel]     [Linux USB]     [Linux PA RISC]     [Linux Samsung SOC]     [MIPS Linux]     [IBM S/390 Linux]     [ARM Linux]     [ARM Kernel]     [ARM MSM]     [Tegra Devel]     [Sparc Linux]     [Linux Security]     [Linux Sound]     [Linux Media]     [Video 4 Linux]     [Linux IRDA Users]     [Linux for the blind]     [Linux RAID]     [Linux ATA RAID]     [Device Mapper]     [Linux SCSI]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Linux IDE]     [Linux SMP]     [Linux AXP]     [Linux Alpha]     [Linux M68K]     [Linux ia64]     [Linux 8086]     [Linux x86_64]     [Linux Config]     [Linux Apps]     [Linux MSDOS]     [Linux X.25]     [Linux Crypto]     [DM Crypt]     [Linux Trace Users]     [Linux Btrace]     [Linux Watchdog]     [Utrace Devel]     [Linux C Programming]     [Linux Assembly]     [Dash]     [DWARVES]     [Hail Devel]     [Linux Kernel Debugger]     [Linux gcc]     [Gcc Help]     [X.Org]     [Wine]

Add to Google Powered by Linux

[Older Kernel Discussion]     [Yosemite National Park Forum]     [Large Format Photos]     [Gimp]     [Yosemite Photos]     [Stuff]