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Message-ID: <1BAFE6F6C881BF42822005164F1491C33EB3EAB6@DBDE01.ent.ti.com>
Date:	Fri, 11 Jan 2013 06:15:06 +0000
From:	"Hebbar, Gururaja" <gururaja.hebbar@...com>
To:	"Porter, Matt" <mporter@...com>
CC:	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Arnd Bergmann <arnd@...db.de>,
	Linux Documentation List <linux-doc@...r.kernel.org>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Dan Williams <djbw@...com>,
	Linux SPI Devel List 
	<spi-devel-general@...ts.sourceforge.net>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	"Nori, Sekhar" <nsekhar@...com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	"Cousson, Benoit" <b-cousson@...com>,
	Russell King <linux@....linux.org.uk>,
	Vinod Koul <vinod.koul@...el.com>,
	Rob Landley <rob@...dley.net>, Chris Ball <cjb@...top.org>,
	Tony Lindgren <tony@...mide.com>
Subject: RE: [PATCH v4 01/14] ARM: davinci: move private EDMA API to
 arm/common

On Fri, Jan 11, 2013 at 11:18:37, Porter, Matt wrote:
> Move mach-davinci/dma.c to common/edma.c so it can be used
> by OMAP (specifically AM33xx) as well. This just moves the
> private EDMA API and enables it to build on OMAP.
> 
> Signed-off-by: Matt Porter <mporter@...com>
> ---
>  arch/arm/Kconfig                               |    1 +
>  arch/arm/common/Kconfig                        |    3 +
>  arch/arm/common/Makefile                       |    1 +
>  arch/arm/{mach-davinci/dma.c => common/edma.c} |    2 +-
>  arch/arm/mach-davinci/Makefile                 |    2 +-
>  arch/arm/mach-davinci/board-tnetv107x-evm.c    |    2 +-
>  arch/arm/mach-davinci/davinci.h                |    2 +-
>  arch/arm/mach-davinci/devices-tnetv107x.c      |    2 +-
>  arch/arm/mach-davinci/devices.c                |    7 +-
>  arch/arm/mach-davinci/dm355.c                  |    2 +-
>  arch/arm/mach-davinci/dm365.c                  |    2 +-
>  arch/arm/mach-davinci/dm644x.c                 |    2 +-
>  arch/arm/mach-davinci/dm646x.c                 |    2 +-
>  arch/arm/mach-davinci/include/mach/da8xx.h     |    2 +-
>  arch/arm/mach-davinci/include/mach/edma.h      |  267 ------------------------
>  arch/arm/plat-omap/Kconfig                     |    1 +
>  drivers/dma/edma.c                             |    2 +-
>  drivers/mmc/host/davinci_mmc.c                 |    1 +
>  include/linux/mfd/davinci_voicecodec.h         |    3 +-
>  include/linux/platform_data/edma.h             |  182 ++++++++++++++++

Headers file are just moved here. So "git mv file1 flie2; and the git 
format-patch -C" on commit should just generate few lines of patch.

>  include/linux/platform_data/spi-davinci.h      |    2 +-
>  sound/soc/davinci/davinci-evm.c                |    1 +
>  sound/soc/davinci/davinci-pcm.c                |    1 +
>  sound/soc/davinci/davinci-pcm.h                |    2 +-
>  sound/soc/davinci/davinci-sffsdr.c             |    6 +-
>  25 files changed, 212 insertions(+), 288 deletions(-)
>  rename arch/arm/{mach-davinci/dma.c => common/edma.c} (99%)
>  delete mode 100644 arch/arm/mach-davinci/include/mach/edma.h
>  create mode 100644 include/linux/platform_data/edma.h
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 67874b8..7637d31 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -932,6 +932,7 @@ config ARCH_DAVINCI
>  	select GENERIC_IRQ_CHIP
>  	select HAVE_IDE
>  	select NEED_MACH_GPIO_H
> +	select TI_PRIV_EDMA
>  	select USE_OF
>  	select ZONE_DMA
>  	help
> diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig
> index 45ceeb0..9e32d0d 100644
> --- a/arch/arm/common/Kconfig
> +++ b/arch/arm/common/Kconfig
> @@ -40,3 +40,6 @@ config SHARP_PARAM
>  
>  config SHARP_SCOOP
>  	bool
> +
> +config TI_PRIV_EDMA
> +	bool
> diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
> index e8a4e58..d09a39b 100644
> --- a/arch/arm/common/Makefile
> +++ b/arch/arm/common/Makefile
> @@ -13,3 +13,4 @@ obj-$(CONFIG_SHARP_PARAM)	+= sharpsl_param.o
>  obj-$(CONFIG_SHARP_SCOOP)	+= scoop.o
>  obj-$(CONFIG_PCI_HOST_ITE8152)  += it8152.o
>  obj-$(CONFIG_ARM_TIMER_SP804)	+= timer-sp.o
> +obj-$(CONFIG_TI_PRIV_EDMA)	+= edma.o
> diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/common/edma.c
> similarity index 99%
> rename from arch/arm/mach-davinci/dma.c
> rename to arch/arm/common/edma.c
> index a685e97..4411087 100644
> --- a/arch/arm/mach-davinci/dma.c
> +++ b/arch/arm/common/edma.c
> @@ -25,7 +25,7 @@
>  #include <linux/io.h>
>  #include <linux/slab.h>
>  
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>  
>  /* Offsets matching "struct edmacc_param" */
>  #define PARM_OPT		0x00
> diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
> index fb5c1aa..493a36b 100644
> --- a/arch/arm/mach-davinci/Makefile
> +++ b/arch/arm/mach-davinci/Makefile
> @@ -5,7 +5,7 @@
>  
>  # Common objects
>  obj-y 			:= time.o clock.o serial.o psc.o \
> -			   dma.o usb.o common.o sram.o aemif.o
> +			   usb.o common.o sram.o aemif.o
>  
>  obj-$(CONFIG_DAVINCI_MUX)		+= mux.o
>  
> diff --git a/arch/arm/mach-davinci/board-tnetv107x-evm.c b/arch/arm/mach-davinci/board-tnetv107x-evm.c
> index be30997..86f55ba 100644
> --- a/arch/arm/mach-davinci/board-tnetv107x-evm.c
> +++ b/arch/arm/mach-davinci/board-tnetv107x-evm.c
> @@ -26,12 +26,12 @@
>  #include <linux/input.h>
>  #include <linux/input/matrix_keypad.h>
>  #include <linux/spi/spi.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include <asm/mach/arch.h>
>  #include <asm/mach-types.h>
>  
>  #include <mach/irqs.h>
> -#include <mach/edma.h>
>  #include <mach/mux.h>
>  #include <mach/cp_intc.h>
>  #include <mach/tnetv107x.h>
> diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
> index 12d544b..d26a6bc 100644
> --- a/arch/arm/mach-davinci/davinci.h
> +++ b/arch/arm/mach-davinci/davinci.h
> @@ -23,9 +23,9 @@
>  #include <linux/platform_device.h>
>  #include <linux/spi/spi.h>
>  #include <linux/platform_data/davinci_asp.h>
> +#include <linux/platform_data/edma.h>
>  #include <linux/platform_data/keyscan-davinci.h>
>  #include <mach/hardware.h>
> -#include <mach/edma.h>
>  
>  #include <media/davinci/vpfe_capture.h>
>  #include <media/davinci/vpif_types.h>
> diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
> index 773ab07..ba37760 100644
> --- a/arch/arm/mach-davinci/devices-tnetv107x.c
> +++ b/arch/arm/mach-davinci/devices-tnetv107x.c
> @@ -18,10 +18,10 @@
>  #include <linux/dma-mapping.h>
>  #include <linux/clk.h>
>  #include <linux/slab.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include <mach/common.h>
>  #include <mach/irqs.h>
> -#include <mach/edma.h>
>  #include <mach/tnetv107x.h>
>  
>  #include "clock.h"
> diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
> index 4c48a36..3bdf9f7 100644
> --- a/arch/arm/mach-davinci/devices.c
> +++ b/arch/arm/mach-davinci/devices.c
> @@ -19,9 +19,10 @@
>  #include <mach/irqs.h>
>  #include <mach/cputype.h>
>  #include <mach/mux.h>
> -#include <mach/edma.h>
>  #include <linux/platform_data/mmc-davinci.h>
>  #include <mach/time.h>
> +#include <linux/platform_data/edma.h>
> +
>  
>  #include "davinci.h"
>  #include "clock.h"
> @@ -141,10 +142,10 @@ static struct resource mmcsd0_resources[] = {
>  	},
>  	/* DMA channels: RX, then TX */
>  	{
> -		.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
> +		.start = EDMA_CTLR_CHAN(0, 26),	/* MMCRXEVT */
>  		.flags = IORESOURCE_DMA,
>  	}, {
> -		.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
> +		.start = EDMA_CTLR_CHAN(0, 27),	/* MMCTXEVT */
>  		.flags = IORESOURCE_DMA,
>  	},
>  };
> diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
> index b49c3b7..53998d8 100644
> --- a/arch/arm/mach-davinci/dm355.c
> +++ b/arch/arm/mach-davinci/dm355.c
> @@ -19,7 +19,6 @@
>  #include <asm/mach/map.h>
>  
>  #include <mach/cputype.h>
> -#include <mach/edma.h>
>  #include <mach/psc.h>
>  #include <mach/mux.h>
>  #include <mach/irqs.h>
> @@ -28,6 +27,7 @@
>  #include <mach/common.h>
>  #include <linux/platform_data/spi-davinci.h>
>  #include <mach/gpio-davinci.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include "davinci.h"
>  #include "clock.h"
> diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
> index 6c39805..9b41d33 100644
> --- a/arch/arm/mach-davinci/dm365.c
> +++ b/arch/arm/mach-davinci/dm365.c
> @@ -18,11 +18,11 @@
>  #include <linux/platform_device.h>
>  #include <linux/dma-mapping.h>
>  #include <linux/spi/spi.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include <asm/mach/map.h>
>  
>  #include <mach/cputype.h>
> -#include <mach/edma.h>
>  #include <mach/psc.h>
>  #include <mach/mux.h>
>  #include <mach/irqs.h>
> diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
> index 11c79a3..a08910e 100644
> --- a/arch/arm/mach-davinci/dm644x.c
> +++ b/arch/arm/mach-davinci/dm644x.c
> @@ -12,11 +12,11 @@
>  #include <linux/clk.h>
>  #include <linux/serial_8250.h>
>  #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include <asm/mach/map.h>
>  
>  #include <mach/cputype.h>
> -#include <mach/edma.h>
>  #include <mach/irqs.h>
>  #include <mach/psc.h>
>  #include <mach/mux.h>
> diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
> index ac7b431..6d52a32 100644
> --- a/arch/arm/mach-davinci/dm646x.c
> +++ b/arch/arm/mach-davinci/dm646x.c
> @@ -13,11 +13,11 @@
>  #include <linux/clk.h>
>  #include <linux/serial_8250.h>
>  #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include <asm/mach/map.h>
>  
>  #include <mach/cputype.h>
> -#include <mach/edma.h>
>  #include <mach/irqs.h>
>  #include <mach/psc.h>
>  #include <mach/mux.h>
> diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
> index 700d311..9d77f9b 100644
> --- a/arch/arm/mach-davinci/include/mach/da8xx.h
> +++ b/arch/arm/mach-davinci/include/mach/da8xx.h
> @@ -20,8 +20,8 @@
>  #include <linux/videodev2.h>
>  
>  #include <mach/serial.h>
> -#include <mach/edma.h>
>  #include <mach/pm.h>
> +#include <linux/platform_data/edma.h>
>  #include <linux/platform_data/i2c-davinci.h>
>  #include <linux/platform_data/mmc-davinci.h>
>  #include <linux/platform_data/usb-davinci.h>
> diff --git a/arch/arm/mach-davinci/include/mach/edma.h b/arch/arm/mach-davinci/include/mach/edma.h
> deleted file mode 100644
> index 7e84c90..0000000
> --- a/arch/arm/mach-davinci/include/mach/edma.h
> +++ /dev/null
> @@ -1,267 +0,0 @@
> -/*
> - *  TI DAVINCI dma definitions
> - *
> - *  Copyright (C) 2006-2009 Texas Instruments.
> - *
> - *  This program is free software; you can redistribute  it and/or modify it
> - *  under  the terms of  the GNU General  Public License as published by the
> - *  Free Software Foundation;  either version 2 of the  License, or (at your
> - *  option) any later version.
> - *
> - *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
> - *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
> - *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
> - *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
> - *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
> - *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
> - *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
> - *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
> - *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> - *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> - *
> - *  You should have received a copy of the  GNU General Public License along
> - *  with this program; if not, write  to the Free Software Foundation, Inc.,
> - *  675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - */
> -
> -/*
> - * This EDMA3 programming framework exposes two basic kinds of resource:
> - *
> - *  Channel	Triggers transfers, usually from a hardware event but
> - *		also manually or by "chaining" from DMA completions.
> - *		Each channel is coupled to a Parameter RAM (PaRAM) slot.
> - *
> - *  Slot	Each PaRAM slot holds a DMA transfer descriptor (PaRAM
> - *		"set"), source and destination addresses, a link to a
> - *		next PaRAM slot (if any), options for the transfer, and
> - *		instructions for updating those addresses.  There are
> - *		more than twice as many slots as event channels.
> - *
> - * Each PaRAM set describes a sequence of transfers, either for one large
> - * buffer or for several discontiguous smaller buffers.  An EDMA transfer
> - * is driven only from a channel, which performs the transfers specified
> - * in its PaRAM slot until there are no more transfers.  When that last
> - * transfer completes, the "link" field may be used to reload the channel's
> - * PaRAM slot with a new transfer descriptor.
> - *
> - * The EDMA Channel Controller (CC) maps requests from channels into physical
> - * Transfer Controller (TC) requests when the channel triggers (by hardware
> - * or software events, or by chaining).  The two physical DMA channels provided
> - * by the TCs are thus shared by many logical channels.
> - *
> - * DaVinci hardware also has a "QDMA" mechanism which is not currently
> - * supported through this interface.  (DSP firmware uses it though.)
> - */
> -
> -#ifndef EDMA_H_
> -#define EDMA_H_
> -
> -/* PaRAM slots are laid out like this */
> -struct edmacc_param {
> -	unsigned int opt;
> -	unsigned int src;
> -	unsigned int a_b_cnt;
> -	unsigned int dst;
> -	unsigned int src_dst_bidx;
> -	unsigned int link_bcntrld;
> -	unsigned int src_dst_cidx;
> -	unsigned int ccnt;
> -};
> -
> -#define CCINT0_INTERRUPT     16
> -#define CCERRINT_INTERRUPT   17
> -#define TCERRINT0_INTERRUPT   18
> -#define TCERRINT1_INTERRUPT   19
> -
> -/* fields in edmacc_param.opt */
> -#define SAM		BIT(0)
> -#define DAM		BIT(1)
> -#define SYNCDIM		BIT(2)
> -#define STATIC		BIT(3)
> -#define EDMA_FWID	(0x07 << 8)
> -#define TCCMODE		BIT(11)
> -#define EDMA_TCC(t)	((t) << 12)
> -#define TCINTEN		BIT(20)
> -#define ITCINTEN	BIT(21)
> -#define TCCHEN		BIT(22)
> -#define ITCCHEN		BIT(23)
> -
> -#define TRWORD (0x7<<2)
> -#define PAENTRY (0x1ff<<5)
> -
> -/* Drivers should avoid using these symbolic names for dm644x
> - * channels, and use platform_device IORESOURCE_DMA resources
> - * instead.  (Other DaVinci chips have different peripherals
> - * and thus have different DMA channel mappings.)
> - */
> -#define DAVINCI_DMA_MCBSP_TX              2
> -#define DAVINCI_DMA_MCBSP_RX              3
> -#define DAVINCI_DMA_VPSS_HIST             4
> -#define DAVINCI_DMA_VPSS_H3A              5
> -#define DAVINCI_DMA_VPSS_PRVU             6
> -#define DAVINCI_DMA_VPSS_RSZ              7
> -#define DAVINCI_DMA_IMCOP_IMXINT          8
> -#define DAVINCI_DMA_IMCOP_VLCDINT         9
> -#define DAVINCI_DMA_IMCO_PASQINT         10
> -#define DAVINCI_DMA_IMCOP_DSQINT         11
> -#define DAVINCI_DMA_SPI_SPIX             16
> -#define DAVINCI_DMA_SPI_SPIR             17
> -#define DAVINCI_DMA_UART0_URXEVT0        18
> -#define DAVINCI_DMA_UART0_UTXEVT0        19
> -#define DAVINCI_DMA_UART1_URXEVT1        20
> -#define DAVINCI_DMA_UART1_UTXEVT1        21
> -#define DAVINCI_DMA_UART2_URXEVT2        22
> -#define DAVINCI_DMA_UART2_UTXEVT2        23
> -#define DAVINCI_DMA_MEMSTK_MSEVT         24
> -#define DAVINCI_DMA_MMCRXEVT             26
> -#define DAVINCI_DMA_MMCTXEVT             27
> -#define DAVINCI_DMA_I2C_ICREVT           28
> -#define DAVINCI_DMA_I2C_ICXEVT           29
> -#define DAVINCI_DMA_GPIO_GPINT0          32
> -#define DAVINCI_DMA_GPIO_GPINT1          33
> -#define DAVINCI_DMA_GPIO_GPINT2          34
> -#define DAVINCI_DMA_GPIO_GPINT3          35
> -#define DAVINCI_DMA_GPIO_GPINT4          36
> -#define DAVINCI_DMA_GPIO_GPINT5          37
> -#define DAVINCI_DMA_GPIO_GPINT6          38
> -#define DAVINCI_DMA_GPIO_GPINT7          39
> -#define DAVINCI_DMA_GPIO_GPBNKINT0       40
> -#define DAVINCI_DMA_GPIO_GPBNKINT1       41
> -#define DAVINCI_DMA_GPIO_GPBNKINT2       42
> -#define DAVINCI_DMA_GPIO_GPBNKINT3       43
> -#define DAVINCI_DMA_GPIO_GPBNKINT4       44
> -#define DAVINCI_DMA_TIMER0_TINT0         48
> -#define DAVINCI_DMA_TIMER1_TINT1         49
> -#define DAVINCI_DMA_TIMER2_TINT2         50
> -#define DAVINCI_DMA_TIMER3_TINT3         51
> -#define DAVINCI_DMA_PWM0                 52
> -#define DAVINCI_DMA_PWM1                 53
> -#define DAVINCI_DMA_PWM2                 54
> -
> -/* DA830 specific EDMA3 information */
> -#define EDMA_DA830_NUM_DMACH		32
> -#define EDMA_DA830_NUM_TCC		32
> -#define EDMA_DA830_NUM_PARAMENTRY	128
> -#define EDMA_DA830_NUM_EVQUE		2
> -#define EDMA_DA830_NUM_TC		2
> -#define EDMA_DA830_CHMAP_EXIST		0
> -#define EDMA_DA830_NUM_REGIONS		4
> -#define DA830_DMACH2EVENT_MAP0		0x000FC03Fu
> -#define DA830_DMACH2EVENT_MAP1		0x00000000u
> -#define DA830_EDMA_ARM_OWN		0x30FFCCFFu
> -
> -/*ch_status paramater of callback function possible values*/
> -#define DMA_COMPLETE 1
> -#define DMA_CC_ERROR 2
> -#define DMA_TC1_ERROR 3
> -#define DMA_TC2_ERROR 4
> -
> -enum address_mode {
> -	INCR = 0,
> -	FIFO = 1
> -};
> -
> -enum fifo_width {
> -	W8BIT = 0,
> -	W16BIT = 1,
> -	W32BIT = 2,
> -	W64BIT = 3,
> -	W128BIT = 4,
> -	W256BIT = 5
> -};
> -
> -enum dma_event_q {
> -	EVENTQ_0 = 0,
> -	EVENTQ_1 = 1,
> -	EVENTQ_2 = 2,
> -	EVENTQ_3 = 3,
> -	EVENTQ_DEFAULT = -1
> -};
> -
> -enum sync_dimension {
> -	ASYNC = 0,
> -	ABSYNC = 1
> -};
> -
> -#define EDMA_CTLR_CHAN(ctlr, chan)	(((ctlr) << 16) | (chan))
> -#define EDMA_CTLR(i)			((i) >> 16)
> -#define EDMA_CHAN_SLOT(i)		((i) & 0xffff)
> -
> -#define EDMA_CHANNEL_ANY		-1	/* for edma_alloc_channel() */
> -#define EDMA_SLOT_ANY			-1	/* for edma_alloc_slot() */
> -#define EDMA_CONT_PARAMS_ANY		 1001
> -#define EDMA_CONT_PARAMS_FIXED_EXACT	 1002
> -#define EDMA_CONT_PARAMS_FIXED_NOT_EXACT 1003
> -
> -#define EDMA_MAX_CC               2
> -
> -/* alloc/free DMA channels and their dedicated parameter RAM slots */
> -int edma_alloc_channel(int channel,
> -	void (*callback)(unsigned channel, u16 ch_status, void *data),
> -	void *data, enum dma_event_q);
> -void edma_free_channel(unsigned channel);
> -
> -/* alloc/free parameter RAM slots */
> -int edma_alloc_slot(unsigned ctlr, int slot);
> -void edma_free_slot(unsigned slot);
> -
> -/* alloc/free a set of contiguous parameter RAM slots */
> -int edma_alloc_cont_slots(unsigned ctlr, unsigned int id, int slot, int count);
> -int edma_free_cont_slots(unsigned slot, int count);
> -
> -/* calls that operate on part of a parameter RAM slot */
> -void edma_set_src(unsigned slot, dma_addr_t src_port,
> -				enum address_mode mode, enum fifo_width);
> -void edma_set_dest(unsigned slot, dma_addr_t dest_port,
> -				 enum address_mode mode, enum fifo_width);
> -void edma_get_position(unsigned slot, dma_addr_t *src, dma_addr_t *dst);
> -void edma_set_src_index(unsigned slot, s16 src_bidx, s16 src_cidx);
> -void edma_set_dest_index(unsigned slot, s16 dest_bidx, s16 dest_cidx);
> -void edma_set_transfer_params(unsigned slot, u16 acnt, u16 bcnt, u16 ccnt,
> -		u16 bcnt_rld, enum sync_dimension sync_mode);
> -void edma_link(unsigned from, unsigned to);
> -void edma_unlink(unsigned from);
> -
> -/* calls that operate on an entire parameter RAM slot */
> -void edma_write_slot(unsigned slot, const struct edmacc_param *params);
> -void edma_read_slot(unsigned slot, struct edmacc_param *params);
> -
> -/* channel control operations */
> -int edma_start(unsigned channel);
> -void edma_stop(unsigned channel);
> -void edma_clean_channel(unsigned channel);
> -void edma_clear_event(unsigned channel);
> -void edma_pause(unsigned channel);
> -void edma_resume(unsigned channel);
> -
> -struct edma_rsv_info {
> -
> -	const s16	(*rsv_chans)[2];
> -	const s16	(*rsv_slots)[2];
> -};
> -
> -/* platform_data for EDMA driver */
> -struct edma_soc_info {
> -
> -	/* how many dma resources of each type */
> -	unsigned	n_channel;
> -	unsigned	n_region;
> -	unsigned	n_slot;
> -	unsigned	n_tc;
> -	unsigned	n_cc;
> -	/*
> -	 * Default queue is expected to be a low-priority queue.
> -	 * This way, long transfers on the default queue started
> -	 * by the codec engine will not cause audio defects.
> -	 */
> -	enum dma_event_q	default_queue;
> -
> -	/* Resource reservation for other cores */
> -	struct edma_rsv_info	*rsv;
> -
> -	const s8	(*queue_tc_mapping)[2];
> -	const s8	(*queue_priority_mapping)[2];
> -};
> -
> -#endif
> diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
> index 665870d..0b81d6c 100644
> --- a/arch/arm/plat-omap/Kconfig
> +++ b/arch/arm/plat-omap/Kconfig
> @@ -29,6 +29,7 @@ config ARCH_OMAP2PLUS
>  	select PINCTRL
>  	select PROC_DEVICETREE if PROC_FS
>  	select SPARSE_IRQ
> +	select TI_PRIV_EDMA
>  	select USE_OF
>  	help
>  	  "Systems based on OMAP2, OMAP3, OMAP4 or OMAP5"
> diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
> index 023c8f2..e57cce3 100644
> --- a/drivers/dma/edma.c
> +++ b/drivers/dma/edma.c
> @@ -24,7 +24,7 @@
>  #include <linux/slab.h>
>  #include <linux/spinlock.h>
>  
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include "dmaengine.h"
>  #include "virt-dma.h"
> diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
> index 17e186d..d1efacc 100644
> --- a/drivers/mmc/host/davinci_mmc.c
> +++ b/drivers/mmc/host/davinci_mmc.c
> @@ -35,6 +35,7 @@
>  #include <linux/edma.h>
>  #include <linux/mmc/mmc.h>
>  
> +#include <linux/platform_data/edma.h>
>  #include <linux/platform_data/mmc-davinci.h>
>  
>  /*
> diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h
> index 0ab6132..7dd6524 100644
> --- a/include/linux/mfd/davinci_voicecodec.h
> +++ b/include/linux/mfd/davinci_voicecodec.h
> @@ -26,8 +26,7 @@
>  #include <linux/kernel.h>
>  #include <linux/platform_device.h>
>  #include <linux/mfd/core.h>
> -
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>  
>  /*
>   * Register values.
> diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h
> new file mode 100644
> index 0000000..2344ea2
> --- /dev/null
> +++ b/include/linux/platform_data/edma.h
> @@ -0,0 +1,182 @@
> +/*
> + *  TI EDMA definitions
> + *
> + *  Copyright (C) 2006-2013 Texas Instruments.
> + *
> + *  This program is free software; you can redistribute  it and/or modify it
> + *  under  the terms of  the GNU General  Public License as published by the
> + *  Free Software Foundation;  either version 2 of the  License, or (at your
> + *  option) any later version.
> + */
> +
> +/*
> + * This EDMA3 programming framework exposes two basic kinds of resource:
> + *
> + *  Channel	Triggers transfers, usually from a hardware event but
> + *		also manually or by "chaining" from DMA completions.
> + *		Each channel is coupled to a Parameter RAM (PaRAM) slot.
> + *
> + *  Slot	Each PaRAM slot holds a DMA transfer descriptor (PaRAM
> + *		"set"), source and destination addresses, a link to a
> + *		next PaRAM slot (if any), options for the transfer, and
> + *		instructions for updating those addresses.  There are
> + *		more than twice as many slots as event channels.
> + *
> + * Each PaRAM set describes a sequence of transfers, either for one large
> + * buffer or for several discontiguous smaller buffers.  An EDMA transfer
> + * is driven only from a channel, which performs the transfers specified
> + * in its PaRAM slot until there are no more transfers.  When that last
> + * transfer completes, the "link" field may be used to reload the channel's
> + * PaRAM slot with a new transfer descriptor.
> + *
> + * The EDMA Channel Controller (CC) maps requests from channels into physical
> + * Transfer Controller (TC) requests when the channel triggers (by hardware
> + * or software events, or by chaining).  The two physical DMA channels provided
> + * by the TCs are thus shared by many logical channels.
> + *
> + * DaVinci hardware also has a "QDMA" mechanism which is not currently
> + * supported through this interface.  (DSP firmware uses it though.)
> + */
> +
> +#ifndef EDMA_H_
> +#define EDMA_H_
> +
> +/* PaRAM slots are laid out like this */
> +struct edmacc_param {
> +	unsigned int opt;
> +	unsigned int src;
> +	unsigned int a_b_cnt;
> +	unsigned int dst;
> +	unsigned int src_dst_bidx;
> +	unsigned int link_bcntrld;
> +	unsigned int src_dst_cidx;
> +	unsigned int ccnt;
> +};
> +
> +/* fields in edmacc_param.opt */
> +#define SAM		BIT(0)
> +#define DAM		BIT(1)
> +#define SYNCDIM		BIT(2)
> +#define STATIC		BIT(3)
> +#define EDMA_FWID	(0x07 << 8)
> +#define TCCMODE		BIT(11)
> +#define EDMA_TCC(t)	((t) << 12)
> +#define TCINTEN		BIT(20)
> +#define ITCINTEN	BIT(21)
> +#define TCCHEN		BIT(22)
> +#define ITCCHEN		BIT(23)
> +
> +/*ch_status paramater of callback function possible values*/
> +#define DMA_COMPLETE 1
> +#define DMA_CC_ERROR 2
> +#define DMA_TC1_ERROR 3
> +#define DMA_TC2_ERROR 4
> +
> +enum address_mode {
> +	INCR = 0,
> +	FIFO = 1
> +};
> +
> +enum fifo_width {
> +	W8BIT = 0,
> +	W16BIT = 1,
> +	W32BIT = 2,
> +	W64BIT = 3,
> +	W128BIT = 4,
> +	W256BIT = 5
> +};
> +
> +enum dma_event_q {
> +	EVENTQ_0 = 0,
> +	EVENTQ_1 = 1,
> +	EVENTQ_2 = 2,
> +	EVENTQ_3 = 3,
> +	EVENTQ_DEFAULT = -1
> +};
> +
> +enum sync_dimension {
> +	ASYNC = 0,
> +	ABSYNC = 1
> +};
> +
> +#define EDMA_CTLR_CHAN(ctlr, chan)	(((ctlr) << 16) | (chan))
> +#define EDMA_CTLR(i)			((i) >> 16)
> +#define EDMA_CHAN_SLOT(i)		((i) & 0xffff)
> +
> +#define EDMA_CHANNEL_ANY		-1	/* for edma_alloc_channel() */
> +#define EDMA_SLOT_ANY			-1	/* for edma_alloc_slot() */
> +#define EDMA_CONT_PARAMS_ANY		 1001
> +#define EDMA_CONT_PARAMS_FIXED_EXACT	 1002
> +#define EDMA_CONT_PARAMS_FIXED_NOT_EXACT 1003
> +
> +#define EDMA_MAX_CC               2
> +
> +/* alloc/free DMA channels and their dedicated parameter RAM slots */
> +int edma_alloc_channel(int channel,
> +	void (*callback)(unsigned channel, u16 ch_status, void *data),
> +	void *data, enum dma_event_q);
> +void edma_free_channel(unsigned channel);
> +
> +/* alloc/free parameter RAM slots */
> +int edma_alloc_slot(unsigned ctlr, int slot);
> +void edma_free_slot(unsigned slot);
> +
> +/* alloc/free a set of contiguous parameter RAM slots */
> +int edma_alloc_cont_slots(unsigned ctlr, unsigned int id, int slot, int count);
> +int edma_free_cont_slots(unsigned slot, int count);
> +
> +/* calls that operate on part of a parameter RAM slot */
> +void edma_set_src(unsigned slot, dma_addr_t src_port,
> +				enum address_mode mode, enum fifo_width);
> +void edma_set_dest(unsigned slot, dma_addr_t dest_port,
> +				 enum address_mode mode, enum fifo_width);
> +void edma_get_position(unsigned slot, dma_addr_t *src, dma_addr_t *dst);
> +void edma_set_src_index(unsigned slot, s16 src_bidx, s16 src_cidx);
> +void edma_set_dest_index(unsigned slot, s16 dest_bidx, s16 dest_cidx);
> +void edma_set_transfer_params(unsigned slot, u16 acnt, u16 bcnt, u16 ccnt,
> +		u16 bcnt_rld, enum sync_dimension sync_mode);
> +void edma_link(unsigned from, unsigned to);
> +void edma_unlink(unsigned from);
> +
> +/* calls that operate on an entire parameter RAM slot */
> +void edma_write_slot(unsigned slot, const struct edmacc_param *params);
> +void edma_read_slot(unsigned slot, struct edmacc_param *params);
> +
> +/* channel control operations */
> +int edma_start(unsigned channel);
> +void edma_stop(unsigned channel);
> +void edma_clean_channel(unsigned channel);
> +void edma_clear_event(unsigned channel);
> +void edma_pause(unsigned channel);
> +void edma_resume(unsigned channel);
> +
> +struct edma_rsv_info {
> +
> +	const s16	(*rsv_chans)[2];
> +	const s16	(*rsv_slots)[2];
> +};
> +
> +/* platform_data for EDMA driver */
> +struct edma_soc_info {
> +
> +	/* how many dma resources of each type */
> +	unsigned	n_channel;
> +	unsigned	n_region;
> +	unsigned	n_slot;
> +	unsigned	n_tc;
> +	unsigned	n_cc;
> +	/*
> +	 * Default queue is expected to be a low-priority queue.
> +	 * This way, long transfers on the default queue started
> +	 * by the codec engine will not cause audio defects.
> +	 */
> +	enum dma_event_q	default_queue;
> +
> +	/* Resource reservation for other cores */
> +	struct edma_rsv_info	*rsv;
> +
> +	const s8	(*queue_tc_mapping)[2];
> +	const s8	(*queue_priority_mapping)[2];
> +};
> +
> +#endif
> diff --git a/include/linux/platform_data/spi-davinci.h b/include/linux/platform_data/spi-davinci.h
> index 7af305b..8dc2fa47 100644
> --- a/include/linux/platform_data/spi-davinci.h
> +++ b/include/linux/platform_data/spi-davinci.h
> @@ -19,7 +19,7 @@
>  #ifndef __ARCH_ARM_DAVINCI_SPI_H
>  #define __ARCH_ARM_DAVINCI_SPI_H
>  
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>  
>  #define SPI_INTERN_CS	0xFF
>  
> diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
> index d55e647..591f547 100644
> --- a/sound/soc/davinci/davinci-evm.c
> +++ b/sound/soc/davinci/davinci-evm.c
> @@ -14,6 +14,7 @@
>  #include <linux/timer.h>
>  #include <linux/interrupt.h>
>  #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
>  #include <linux/i2c.h>
>  #include <sound/core.h>
>  #include <sound/pcm.h>
> diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
> index afab81f..9bdd71b 100644
> --- a/sound/soc/davinci/davinci-pcm.c
> +++ b/sound/soc/davinci/davinci-pcm.c
> @@ -17,6 +17,7 @@
>  #include <linux/dma-mapping.h>
>  #include <linux/kernel.h>
>  #include <linux/genalloc.h>
> +#include <linux/platform_data/edma.h>
>  
>  #include <sound/core.h>
>  #include <sound/pcm.h>
> diff --git a/sound/soc/davinci/davinci-pcm.h b/sound/soc/davinci/davinci-pcm.h
> index b6ef703..fbb710c 100644
> --- a/sound/soc/davinci/davinci-pcm.h
> +++ b/sound/soc/davinci/davinci-pcm.h
> @@ -14,7 +14,7 @@
>  
>  #include <linux/genalloc.h>
>  #include <linux/platform_data/davinci_asp.h>
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>  
>  struct davinci_pcm_dma_params {
>  	int channel;			/* sync dma channel ID */
> diff --git a/sound/soc/davinci/davinci-sffsdr.c b/sound/soc/davinci/davinci-sffsdr.c
> index 5be65aa..074fc5d 100644
> --- a/sound/soc/davinci/davinci-sffsdr.c
> +++ b/sound/soc/davinci/davinci-sffsdr.c
> @@ -17,6 +17,7 @@
>  #include <linux/timer.h>
>  #include <linux/interrupt.h>
>  #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
>  #include <linux/gpio.h>
>  #include <sound/core.h>
>  #include <sound/pcm.h>
> @@ -28,7 +29,6 @@
>  #include <asm/plat-sffsdr/sffsdr-fpga.h>
>  #endif
>  
> -#include <mach/edma.h>
>  
>  #include "../codecs/pcm3008.h"
>  #include "davinci-pcm.h"
> @@ -123,8 +123,8 @@ static struct resource sffsdr_snd_resources[] = {
>  };
>  
>  static struct evm_snd_platform_data sffsdr_snd_data = {
> -	.tx_dma_ch	= DAVINCI_DMA_MCBSP_TX,
> -	.rx_dma_ch	= DAVINCI_DMA_MCBSP_RX,
> +	.tx_dma_ch	= 2,	/* MCBSP_TX */
> +	.rx_dma_ch	= 3,	/* MCBSP_RX */
>  };
>  
>  static struct platform_device *sffsdr_snd_device;
> -- 
> 1.7.9.5
> 
> _______________________________________________
> Davinci-linux-open-source mailing list
> Davinci-linux-open-source@...ux.davincidsp.com
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
> 


Regards, 
Gururaja
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