Commit Graph

58 Commits

Author SHA1 Message Date
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Adam Ford
99bec1aead Convert CONFIG_APBH_DMA et al to Kconfig
This converts the following to Kconfig:
   CONFIG_APBH_DMA
   CONFIG_APBH_DMA_BURST
   CONFIG_APBH_DMA_BURST8

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Stefan Agner <stefan.agner@toradex.com>
[trini: Add in MMC as well]
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-02-08 12:48:11 -05:00
Tero Kristo
72b7af5a04 drivers: dma: ti-edma3: add support for memory fill
Add support for simple memory fill operation. With large data sizes
it is much faster to use EDMA for memory fill rather than CPU.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2018-01-19 15:49:25 -05:00
Masahiro Yamada
9b643e312d treewide: replace with error() with pr_err()
U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 11:59:44 -04:00
Stefano Babic
552a848e4f imx: reorganize IMX code as other SOCs
Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/<SOC>.

This change is also coherent with the structure in kernel.

Signed-off-by: Stefano Babic <sbabic@denx.de>

CC: Fabio Estevam <fabio.estevam@nxp.com>
CC: Akshay Bhat <akshaybhat@timesys.com>
CC: Ken Lin <Ken.Lin@advantech.com.tw>
CC: Marek Vasut <marek.vasut@gmail.com>
CC: Heiko Schocher <hs@denx.de>
CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com>
CC: Christian Gmeiner <christian.gmeiner@gmail.com>
CC: Stefan Roese <sr@denx.de>
CC: Patrick Bruenn <p.bruenn@beckhoff.com>
CC: Troy Kisky <troy.kisky@boundarydevices.com>
CC: Nikita Kiryanov <nikita@compulab.co.il>
CC: Otavio Salvador <otavio@ossystems.com.br>
CC: "Eric Bénard" <eric@eukrea.com>
CC: Jagan Teki <jagan@amarulasolutions.com>
CC: Ye Li <ye.li@nxp.com>
CC: Peng Fan <peng.fan@nxp.com>
CC: Adrian Alonso <adrian.alonso@nxp.com>
CC: Alison Wang <b18965@freescale.com>
CC: Tim Harvey <tharvey@gateworks.com>
CC: Martin Donnelly <martin.donnelly@ge.com>
CC: Marcin Niestroj <m.niestroj@grinn-global.com>
CC: Lukasz Majewski <lukma@denx.de>
CC: Adam Ford <aford173@gmail.com>
CC: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr>
CC: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Soeren Moch <smoch@web.de>
CC: Richard Hu <richard.hu@technexion.com>
CC: Wig Cheng <wig.cheng@technexion.com>
CC: Vanessa Maegima <vanessa.maegima@nxp.com>
CC: Max Krummenacher <max.krummenacher@toradex.com>
CC: Stefan Agner <stefan.agner@toradex.com>
CC: Markus Niebel <Markus.Niebel@tq-group.com>
CC: Breno Lima <breno.lima@nxp.com>
CC: Francesco Montefoschi <francesco.montefoschi@udoo.org>
CC: Jaehoon Chung <jh80.chung@samsung.com>
CC: Scott Wood <oss@buserror.net>
CC: Joe Hershberger <joe.hershberger@ni.com>
CC: Anatolij Gustschin <agust@denx.de>
CC: Simon Glass <sjg@chromium.org>
CC: "Andrew F. Davis" <afd@ti.com>
CC: "Łukasz Majewski" <l.majewski@samsung.com>
CC: Patrice Chotard <patrice.chotard@st.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Hans de Goede <hdegoede@redhat.com>
CC: Masahiro Yamada <yamada.masahiro@socionext.com>
CC: Stephen Warren <swarren@nvidia.com>
CC: Andre Przywara <andre.przywara@arm.com>
CC: "Álvaro Fernández Rojas" <noltari@gmail.com>
CC: York Sun <york.sun@nxp.com>
CC: Xiaoliang Yang <xiaoliang.yang@nxp.com>
CC: Chen-Yu Tsai <wens@csie.org>
CC: George McCollister <george.mccollister@gmail.com>
CC: Sven Ebenfeld <sven.ebenfeld@gmail.com>
CC: Filip Brozovic <fbrozovic@gmail.com>
CC: Petr Kulhavy <brain@jikos.cz>
CC: Eric Nelson <eric@nelint.com>
CC: Bai Ping <ping.bai@nxp.com>
CC: Anson Huang <Anson.Huang@nxp.com>
CC: Sanchayan Maity <maitysanchayan@gmail.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Patrick Delaunay <patrick.delaunay@st.com>
CC: Gary Bisson <gary.bisson@boundarydevices.com>
CC: Alexander Graf <agraf@suse.de>
CC: u-boot@lists.denx.de
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-07-12 10:17:44 +02:00
Simon Glass
a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -06:00
Simon Glass
9d922450aa dm: Use dm.h header when driver mode is used
This header includes things that are needed to make driver build. Adjust
existing users to include that always, even if other dm/ includes are
present

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 06:57:52 -06:00
Masahiro Yamada
1221ce459d treewide: replace #include <asm/errno.h> with <linux/errno.h>
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content.  (both just wrap <asm-generic/errno.h>)

Replace all include directives for <asm/errno.h> with <linux/errno.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-23 17:55:42 -04:00
Mugunthan V N
1218e5c507 drivers: dma: ti-edma3: convert driver to adopt driver model
adopt ti-edma3 driver to device driver model

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-02-23 16:14:46 +05:30
Mugunthan V N
58da672d49 dma: Kconfig: Add TI_EDMA3 entry
Add TI_EDMA3 entry on Kconfig with help description.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-02-23 16:14:45 +05:30
Mugunthan V N
a0594cefb7 dm: implement a DMA uclass
Implement a DMA uclass so that the devices like ethernet, spi,
mmc etc can offload the data transfers from/to the device and
memory.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-02-23 16:14:45 +05:30
Peng Fan
1fc4f80495 imx: apbh_dma: Update APBH-DMA for MX7D
Update APBH-DMA driver and head files to support i.MX7D

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2016-01-24 12:09:16 +01:00
Vitaly Andrianov
bc3003b999 dma: keystone_nav: Fix linkram size
Fix Linkram size.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2015-10-22 14:22:22 -04:00
Sylvain Lemieux
980db8ca43 dma: lpc32xx: add DMA driver
Incorporate DMA driver from legacy LPCLinux NXP BSP.
The files taken from the legacy patch are:
- lpc32xx DMA driver
- lpc3250 header file DMA registers definition.

The legacy driver was updated and clean-up as part of the integration with the latest u-boot.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Vladimir Zapolskiy <vz@mleia.com>
2015-08-18 13:45:55 -04:00
Vignesh R
664ab2c992 dma: ti-edma3: Add helper function to support edma3 transfer
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-08-17 23:29:15 +05:30
Khoronzhuk, Ivan
75d7c0b04c dma: keystone_nav: remove spurious qm_cfg verification
The verification qm_cfg existence is done at ksnav_init().
So, there is no need to verify it after initialization.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
2014-11-06 11:04:39 -05:00
Khoronzhuk, Ivan
e165b1d34c dma: ti-edma3: introduce edma3 driver
The EDMA3 controller’s primary purpose is to service data transfers
that you program between two memory-mapped slave endpoints on the device.

Typical usage includes, but is not limited to the following:
- Servicing software-driven paging transfers (e.g., transfers from external
  memory, such as SDRAM to internal device memory, such as DSP L2 SRAM)
- Servicing event-driven peripherals, such as a serial port
- Performing sorting or sub-frame extraction of various data structures
- Offloading data transfers from the main device DSP(s)
- See the device-specific data manual for specific peripherals that are
  accessible via the EDMA3 controller

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
2014-10-23 11:27:29 -04:00
Khoronzhuk, Ivan
9ea9021ac4 dma: keystone_nav: generalize driver usage
The keystone_nav driver is general driver intended to be used for
working with queue manager and pktdma for different IPs like NETCP,
AIF, FFTC, etc. So the it's API shouldn't be named like it works only
with one of them, it should be general names. The names with prefix
like netcp_* rather do for drivers/net/keystone_net.c driver. So it's
good to generalize this driver to be used for different IP's and
delete confusion with real NETCP driver.

The current netcp_* functions of keystone navigator can be used for
other settings of pktdma, not only for NETCP. The API of this driver
is used by the keystone_net driver to work with NETCP, so net driver
also should be corrected. For convenience collect pkdma
configurations in drivers/dma/keystone_nav_cfg.c.

Acked-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
2014-10-23 11:27:04 -04:00
Khoronzhuk, Ivan
ef4547176d dma: keystone_nav: move keystone_nav driver to driver/dma/
The keystone_nav is used by drivers/net/keystone_net.c driver to
send and receive packets, but currently it's placed at keystone
arch sources. So it should be in the drivers directory also.
It's separate driver that can be used for sending and receiving
pktdma packets by others drivers also.

This patch just move this driver to appropriate directory and
doesn't add any functional changes.

Acked-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
2014-10-23 11:27:04 -04:00
Masahiro Yamada
c79cba37b3 cosmetic: replace MIN, MAX with min, max
The macro MIN, MAX is defined as the aliase of min, max,
respectively.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-09-24 18:30:29 -04:00
Masahiro Yamada
ed36323f6d kconfig: add blank Kconfig files
This would be useful to start moving various config options.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2014-09-24 18:30:28 -04:00
Masahiro Yamada
8ac22a60e2 omap: clean-up dead configs
The following configs are not defined at all.

 - CONFIG_OMAP1510
 - CONFIG_OMAP_1510P1
 - CONFIG_OMAP_SX1
 - CONFIG_OMAP3_DMA
 - CONFIG_OMAP3_ZOOM2
 - CONFIG_OMAP_INNOVATOR

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
2014-08-09 11:17:04 -04:00
Masahiro Yamada
710f1d3d5f drivers: convert makefiles to Kbuild style
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-10-31 13:26:01 -04:00
Marek Vasut
69f7345c95 dma: apbh: Add special circular mode for LCD
Add special function that executes a specially crafted circular
DMA descriptor. The function doesn't wait for the descriptor to
finish the transfer, since the descritor never finishes. This is
useful when operating a SmartLCD through the LCDIF interface, as
the LCDIF does not give us any means to have continuous refresh
of the SmartLCD. Instead, the RUN bit in the LCDIF CTRL register
must be triggered manually. This can be worked around by starting
an DMA transfer which continuously sets the RUN bit. This function
allows starting exactly such transfer.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
2013-08-09 21:48:34 +02:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Stefan Roese
99193e30b4 dma: Add i.MX6 support to drivers/dma/apbh_dma.c
This will be used by the i.MX6 NAND support.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
2013-04-22 10:26:13 +02:00
Stefan Roese
0499218dbc imx: Move some header files from arch-mxs to imx-common
The following headers are moved to a i.MX common location:

- regs-common.h
- regs-apbh.h
- regs-bch.h
- regs-gpmi.h
- dma.h

This way this header can be re-used also by other i.MX platforms.
For example the i.MX6 which will need it for the upcoming NAND
support.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
2013-04-22 10:22:22 +02:00
Marek Vasut
0e5c05efb4 mxs: dma: Fix APBH DMA driver for MX23
The MX23 has less channels for the APBH DMA, sligtly different register
layout and some bits in those registers are placed differently. Reflect
this in the driver. This patch fixes MMC/DMA issue on MX23.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
2013-01-28 11:43:00 +01:00
Marek Vasut
1375f044d9 MX28: DMA: Prolong the DMA timeout
Load from SPI flash can create a long DMA chain, which can take long
time to transfer. Change the DMA timeout to roughly 10s to prevent
such long chains misreporting errors.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
2012-09-01 14:58:29 +02:00
Otavio Salvador
fa7a51cb82 mxs: Convert sys_proto.h prefixes to 'mxs'
The sys_proto.h functions (except the boot modes) are compatible with
i.MX233 and i.MX28 so we use 'mxs' prefix for its methods.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:25 +02:00
Otavio Salvador
9c471142bc mxs: prefix register structs with 'mxs' prefix
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:17 +02:00
Marek Vasut
96666a39ae DMA: Split the APBH DMA init into block and channel init
This fixes the issue where mxs_dma_init() was called either twice or never,
without introducing any new init hooks.

The idea is to allow each and every device using the APBH DMA block to
configure and request only the channels it uses, instead of making it call init
for all the channels as is now.

The common DMA block init part, which only configures the block, is then called
from CPUs arch_cpu_init() call.

NOTE: This patch depends on:

	http://patchwork.ozlabs.org/patch/150957/

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
2012-04-16 14:53:59 +02:00
Marek Vasut
c3dfe70776 i.MX28: Add cache support into the APBH DMA driver
The desc_append() now flushes descriptors into RAM.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2012-03-29 07:56:25 +02:00
Marek Vasut
aa72e43bb7 MXS: Add static annotations to dma driver
Some functions were internal to the apbh dma driver, so annotate them static.
Some of the functions weren't used at all so drop them. This makes the U-Boot
binary smaller by about 1500 bytes.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
2011-12-06 23:59:40 +01:00
Wolfram Sang
12dab4ce85 apbh_dma: return error value on timeout
When a timeout occurs, the return value is prepared but never returned.
Fix that.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2011-12-06 23:59:40 +01:00
Marek Vasut
31650d64a8 iMX28: Add APBH DMA driver
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
2011-11-11 11:36:57 +01:00
Simon Schwarz
4c4bb19d05 omap3: Add interface for omap3 DMA
Adds an interface to use the OMAP3 DMA.

Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-10-27 21:56:34 +02:00
Ira W. Snyder
9a865fff15 fsl_dma: fix support for 83xx DMA engine
Commit 359ec49319 broke support for the
Freescale DMA engine on the 83xx parts. This is due to using registers
which do not exist on 83xx. Remove the attribute register accesses from
the 83xx build.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Cc: York Sun <yorksun@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2011-07-06 19:09:27 -05:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
York Sun
359ec49319 powerpc/8xxx: Fix dma for 36bit addressing
Use more bits to support 36-bit addressing

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-08-31 11:23:15 -05:00
TsiChung Liew
f6a309080b ColdFire: Fix compile warning messages
Change %08lX to %08X in board.c. Remove unused variable
'oscillator' in mcf5227x/cpu_init.c and 'scm2' in
mcf532x/cpu_init.c. Provide argument type cast in
drivers/dma/MCD_dmaApi.c.

Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
2009-08-26 03:44:31 -05:00
Peter Tyser
e94e460c6e 83xx: Add support for fsl_dma driver
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Reviewed-by: Ira W. Snyder <iws@ovro.caltech.edu>
Tested-by: Ira W. Snyder <iws@ovro.caltech.edu>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-02 11:15:57 -05:00
Peter Tyser
6af015b86b fsl_dma: Make DMA transactions snoopable
Make DMA transactions snoopable so that CPUs can keep caches up-to-date.
This allows dma transactions to be used for operations such as memory
copies without any additional cache control operations.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:12:05 -05:00
Peter Tyser
0d595f76bc fsl_dma: Break out common memory initialization function
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:12:01 -05:00
Peter Tyser
7892f619d4 8xxx: Rename dma_xfer() to dmacpy()
Also update dmacpy()'s argument order to match memcpy's and use
phys_addr_t/phy_size_t for address/size arguments

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:07:47 -05:00
Peter Tyser
484919cf33 fsl_dma: Fix Channel Start bug in dma_check()
The Channel Start (CS) bit in the Mode Register (MR) should actually be
cleared as the comment in the code suggests.  Previously, CS was being
set, not cleared.

Assuming normal operation of the DMA engine, this change shouldn't have
any real affect.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:07:45 -05:00
Peter Tyser
51402ac12b fsl_dma: Add support for arbitrarily large transfers
Support DMA transfers larger than the DMA controller's limit of
(2 ^ 26 - 1) bytes

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:07:43 -05:00
Peter Tyser
a730393a36 fsl_dma: Use proper I/O access functions
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:02:24 -05:00
Peter Tyser
9c06071a60 fsl_dma: Add bitfield definitions for common registers
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:01:55 -05:00