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* dma: apbh: Add special circular mode for LCDMarek Vasut2013-08-09-0/+22
| | | | | | | | | | | | | | | | | | 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>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-112/+7
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* dma: Add i.MX6 support to drivers/dma/apbh_dma.cStefan Roese2013-04-22-1/+1
| | | | | | | | | 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>
* imx: Move some header files from arch-mxs to imx-commonStefan Roese2013-04-22-1/+2
| | | | | | | | | | | | | | | | | | | 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>
* mxs: dma: Fix APBH DMA driver for MX23Marek Vasut2013-01-28-2/+8
| | | | | | | | | | | 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>
* MX28: DMA: Prolong the DMA timeoutMarek Vasut2012-09-01-1/+1
| | | | | | | | | | | 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>
* mxs: Convert sys_proto.h prefixes to 'mxs'Otavio Salvador2012-09-01-2/+2
| | | | | | | 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>
* mxs: prefix register structs with 'mxs' prefixOtavio Salvador2012-09-01-16/+16
| | | | Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* DMA: Split the APBH DMA init into block and channel initMarek Vasut2012-04-16-21/+17
| | | | | | | | | | | | | | | | | | | | | | | 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>
* i.MX28: Add cache support into the APBH DMA driverMarek Vasut2012-03-29-1/+22
| | | | | | | The desc_append() now flushes descriptors into RAM. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* MXS: Add static annotations to dma driverMarek Vasut2011-12-06-159/+50
| | | | | | | | | | | 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>
* apbh_dma: return error value on timeoutWolfram Sang2011-12-06-1/+1
| | | | | | | | | | 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>
* iMX28: Add APBH DMA driverMarek Vasut2011-11-11-0/+692
| | | | | | | 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>
* omap3: Add interface for omap3 DMASimon Schwarz2011-10-27-0/+181
| | | | | | | 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>
* fsl_dma: fix support for 83xx DMA engineIra W. Snyder2011-07-06-0/+2
| | | | | | | | | | | | | Commit 359ec4931944adb885882deb9b781e4095eabc94 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>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-17-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* powerpc/8xxx: Fix dma for 36bit addressingYork Sun2010-08-31-2/+6
| | | | | | | 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>
* ColdFire: Fix compile warning messagesTsiChung Liew2009-08-26-6/+10
| | | | | | | | | 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>
* 83xx: Add support for fsl_dma driverPeter Tyser2009-07-02-15/+49
| | | | | | | | 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>
* fsl_dma: Make DMA transactions snoopablePeter Tyser2009-07-01-2/+2
| | | | | | | | | 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>
* fsl_dma: Break out common memory initialization functionPeter Tyser2009-07-01-0/+32
| | | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* 8xxx: Rename dma_xfer() to dmacpy()Peter Tyser2009-07-01-1/+1
| | | | | | | | 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>
* fsl_dma: Fix Channel Start bug in dma_check()Peter Tyser2009-07-01-1/+1
| | | | | | | | | | | | 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>
* fsl_dma: Add support for arbitrarily large transfersPeter Tyser2009-07-01-12/+28
| | | | | | | | 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>
* fsl_dma: Use proper I/O access functionsPeter Tyser2009-07-01-14/+18
| | | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* fsl_dma: Add bitfield definitions for common registersPeter Tyser2009-07-01-6/+6
| | | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* 8xxx: Break out DMA code to a common filePeter Tyser2009-07-01-0/+93
| | | | | | | | DMA support is now enabled via the CONFIG_FSL_DMA define instead of the previous CONFIG_DDR_ECC Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* drivers/dma: Move conditional compilation to MakefileJean-Christophe PLAGNIOL-VILLARD2008-08-13-12/+1
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Big white-space cleanup.Wolfgang Denk2008-05-21-3/+3
| | | | | | | | | | | This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Use #ifdef CONFIG_FSLDMAFECVlad Lungu2008-02-14-0/+6
| | | | | | | MCD_tasks.c lacks [subject] so compilation of mips targets (and more, probably) fails Signed-off-by: Vlad Lungu <vlad@comsys.ro>
* Coding Style Cleanup; update CHANGELOGWolfgang Denk2008-01-23-1/+0
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* ColdFire: Add MCF547x_8x dma code and header filesTsiChungLiew2008-01-17-0/+293
| | | | | Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com> Signed-off by: John Rigby <jrigby@freescale.com>
* ColdFire: Add MCF547x_8x dma code - 2TsiChungLiew2008-01-17-0/+1026
| | | | | Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com> Signed-off by: John Rigby <jrigby@freescale.com>
* ColdFire: Add MCF547x_8x dma code - 1TsiChungLiew2008-01-17-0/+2428
Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com> Signed-off by: John Rigby <jrigby@freescale.com>
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