initial_commit

1 files changed, 533 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h
new file mode 100644
index 00000000..d1c916fc
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/dma.h
@@ -0,0 +1,533 @@
+/*
+ *  arch/arm/plat-omap/include/mach/dma.h
+ *
+ *  Copyright (C) 2003 Nokia Corporation
+ *  Author: Juha Yrjölä <juha.yrjola@nokia.com>
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+#include <linux/platform_device.h>
+
+/*
+ * TODO: These dma channel defines should go away once all
+ * the omap drivers hwmod adapted.
+ */
+
+/* Move omap4 specific defines to dma-44xx.h */
+#include "dma-44xx.h"
+
+/* DMA channels for omap1 */
+#define OMAP_DMA_NO_DEVICE		0
+#define OMAP_DMA_MCSI1_TX		1
+#define OMAP_DMA_MCSI1_RX		2
+#define OMAP_DMA_I2C_RX			3
+#define OMAP_DMA_I2C_TX			4
+#define OMAP_DMA_EXT_NDMA_REQ		5
+#define OMAP_DMA_EXT_NDMA_REQ2		6
+#define OMAP_DMA_UWIRE_TX		7
+#define OMAP_DMA_MCBSP1_TX		8
+#define OMAP_DMA_MCBSP1_RX		9
+#define OMAP_DMA_MCBSP3_TX		10
+#define OMAP_DMA_MCBSP3_RX		11
+#define OMAP_DMA_UART1_TX		12
+#define OMAP_DMA_UART1_RX		13
+#define OMAP_DMA_UART2_TX		14
+#define OMAP_DMA_UART2_RX		15
+#define OMAP_DMA_MCBSP2_TX		16
+#define OMAP_DMA_MCBSP2_RX		17
+#define OMAP_DMA_UART3_TX		18
+#define OMAP_DMA_UART3_RX		19
+#define OMAP_DMA_CAMERA_IF_RX		20
+#define OMAP_DMA_MMC_TX			21
+#define OMAP_DMA_MMC_RX			22
+#define OMAP_DMA_NAND			23
+#define OMAP_DMA_IRQ_LCD_LINE		24
+#define OMAP_DMA_MEMORY_STICK		25
+#define OMAP_DMA_USB_W2FC_RX0		26
+#define OMAP_DMA_USB_W2FC_RX1		27
+#define OMAP_DMA_USB_W2FC_RX2		28
+#define OMAP_DMA_USB_W2FC_TX0		29
+#define OMAP_DMA_USB_W2FC_TX1		30
+#define OMAP_DMA_USB_W2FC_TX2		31
+
+/* These are only for 1610 */
+#define OMAP_DMA_CRYPTO_DES_IN		32
+#define OMAP_DMA_SPI_TX			33
+#define OMAP_DMA_SPI_RX			34
+#define OMAP_DMA_CRYPTO_HASH		35
+#define OMAP_DMA_CCP_ATTN		36
+#define OMAP_DMA_CCP_FIFO_NOT_EMPTY	37
+#define OMAP_DMA_CMT_APE_TX_CHAN_0	38
+#define OMAP_DMA_CMT_APE_RV_CHAN_0	39
+#define OMAP_DMA_CMT_APE_TX_CHAN_1	40
+#define OMAP_DMA_CMT_APE_RV_CHAN_1	41
+#define OMAP_DMA_CMT_APE_TX_CHAN_2	42
+#define OMAP_DMA_CMT_APE_RV_CHAN_2	43
+#define OMAP_DMA_CMT_APE_TX_CHAN_3	44
+#define OMAP_DMA_CMT_APE_RV_CHAN_3	45
+#define OMAP_DMA_CMT_APE_TX_CHAN_4	46
+#define OMAP_DMA_CMT_APE_RV_CHAN_4	47
+#define OMAP_DMA_CMT_APE_TX_CHAN_5	48
+#define OMAP_DMA_CMT_APE_RV_CHAN_5	49
+#define OMAP_DMA_CMT_APE_TX_CHAN_6	50
+#define OMAP_DMA_CMT_APE_RV_CHAN_6	51
+#define OMAP_DMA_CMT_APE_TX_CHAN_7	52
+#define OMAP_DMA_CMT_APE_RV_CHAN_7	53
+#define OMAP_DMA_MMC2_TX		54
+#define OMAP_DMA_MMC2_RX		55
+#define OMAP_DMA_CRYPTO_DES_OUT		56
+
+/* DMA channels for 24xx */
+#define OMAP24XX_DMA_NO_DEVICE		0
+#define OMAP24XX_DMA_XTI_DMA		1	/* S_DMA_0 */
+#define OMAP24XX_DMA_EXT_DMAREQ0	2	/* S_DMA_1 */
+#define OMAP24XX_DMA_EXT_DMAREQ1	3	/* S_DMA_2 */
+#define OMAP24XX_DMA_GPMC		4	/* S_DMA_3 */
+#define OMAP24XX_DMA_GFX		5	/* S_DMA_4 */
+#define OMAP24XX_DMA_DSS		6	/* S_DMA_5 */
+#define OMAP242X_DMA_VLYNQ_TX		7	/* S_DMA_6 */
+#define OMAP24XX_DMA_EXT_DMAREQ2	7	/* S_DMA_6 */
+#define OMAP24XX_DMA_CWT		8	/* S_DMA_7 */
+#define OMAP24XX_DMA_AES_TX		9	/* S_DMA_8 */
+#define OMAP24XX_DMA_AES_RX		10	/* S_DMA_9 */
+#define OMAP24XX_DMA_DES_TX		11	/* S_DMA_10 */
+#define OMAP24XX_DMA_DES_RX		12	/* S_DMA_11 */
+#define OMAP24XX_DMA_SHA1MD5_RX		13	/* S_DMA_12 */
+#define OMAP34XX_DMA_SHA2MD5_RX		13	/* S_DMA_12 */
+#define OMAP242X_DMA_EXT_DMAREQ2	14	/* S_DMA_13 */
+#define OMAP242X_DMA_EXT_DMAREQ3	15	/* S_DMA_14 */
+#define OMAP242X_DMA_EXT_DMAREQ4	16	/* S_DMA_15 */
+#define OMAP242X_DMA_EAC_AC_RD		17	/* S_DMA_16 */
+#define OMAP242X_DMA_EAC_AC_WR		18	/* S_DMA_17 */
+#define OMAP242X_DMA_EAC_MD_UL_RD	19	/* S_DMA_18 */
+#define OMAP242X_DMA_EAC_MD_UL_WR	20	/* S_DMA_19 */
+#define OMAP242X_DMA_EAC_MD_DL_RD	21	/* S_DMA_20 */
+#define OMAP242X_DMA_EAC_MD_DL_WR	22	/* S_DMA_21 */
+#define OMAP242X_DMA_EAC_BT_UL_RD	23	/* S_DMA_22 */
+#define OMAP242X_DMA_EAC_BT_UL_WR	24	/* S_DMA_23 */
+#define OMAP242X_DMA_EAC_BT_DL_RD	25	/* S_DMA_24 */
+#define OMAP242X_DMA_EAC_BT_DL_WR	26	/* S_DMA_25 */
+#define OMAP243X_DMA_EXT_DMAREQ3	14	/* S_DMA_13 */
+#define OMAP24XX_DMA_SPI3_TX0		15	/* S_DMA_14 */
+#define OMAP24XX_DMA_SPI3_RX0		16	/* S_DMA_15 */
+#define OMAP24XX_DMA_MCBSP3_TX		17	/* S_DMA_16 */
+#define OMAP24XX_DMA_MCBSP3_RX		18	/* S_DMA_17 */
+#define OMAP24XX_DMA_MCBSP4_TX		19	/* S_DMA_18 */
+#define OMAP24XX_DMA_MCBSP4_RX		20	/* S_DMA_19 */
+#define OMAP24XX_DMA_MCBSP5_TX		21	/* S_DMA_20 */
+#define OMAP24XX_DMA_MCBSP5_RX		22	/* S_DMA_21 */
+#define OMAP24XX_DMA_SPI3_TX1		23	/* S_DMA_22 */
+#define OMAP24XX_DMA_SPI3_RX1		24	/* S_DMA_23 */
+#define OMAP243X_DMA_EXT_DMAREQ4	25	/* S_DMA_24 */
+#define OMAP243X_DMA_EXT_DMAREQ5	26	/* S_DMA_25 */
+#define OMAP34XX_DMA_I2C3_TX		25	/* S_DMA_24 */
+#define OMAP34XX_DMA_I2C3_RX		26	/* S_DMA_25 */
+#define OMAP24XX_DMA_I2C1_TX		27	/* S_DMA_26 */
+#define OMAP24XX_DMA_I2C1_RX		28	/* S_DMA_27 */
+#define OMAP24XX_DMA_I2C2_TX		29	/* S_DMA_28 */
+#define OMAP24XX_DMA_I2C2_RX		30	/* S_DMA_29 */
+#define OMAP24XX_DMA_MCBSP1_TX		31	/* S_DMA_30 */
+#define OMAP24XX_DMA_MCBSP1_RX		32	/* S_DMA_31 */
+#define OMAP24XX_DMA_MCBSP2_TX		33	/* S_DMA_32 */
+#define OMAP24XX_DMA_MCBSP2_RX		34	/* S_DMA_33 */
+#define OMAP24XX_DMA_SPI1_TX0		35	/* S_DMA_34 */
+#define OMAP24XX_DMA_SPI1_RX0		36	/* S_DMA_35 */
+#define OMAP24XX_DMA_SPI1_TX1		37	/* S_DMA_36 */
+#define OMAP24XX_DMA_SPI1_RX1		38	/* S_DMA_37 */
+#define OMAP24XX_DMA_SPI1_TX2		39	/* S_DMA_38 */
+#define OMAP24XX_DMA_SPI1_RX2		40	/* S_DMA_39 */
+#define OMAP24XX_DMA_SPI1_TX3		41	/* S_DMA_40 */
+#define OMAP24XX_DMA_SPI1_RX3		42	/* S_DMA_41 */
+#define OMAP24XX_DMA_SPI2_TX0		43	/* S_DMA_42 */
+#define OMAP24XX_DMA_SPI2_RX0		44	/* S_DMA_43 */
+#define OMAP24XX_DMA_SPI2_TX1		45	/* S_DMA_44 */
+#define OMAP24XX_DMA_SPI2_RX1		46	/* S_DMA_45 */
+#define OMAP24XX_DMA_MMC2_TX		47	/* S_DMA_46 */
+#define OMAP24XX_DMA_MMC2_RX		48	/* S_DMA_47 */
+#define OMAP24XX_DMA_UART1_TX		49	/* S_DMA_48 */
+#define OMAP24XX_DMA_UART1_RX		50	/* S_DMA_49 */
+#define OMAP24XX_DMA_UART2_TX		51	/* S_DMA_50 */
+#define OMAP24XX_DMA_UART2_RX		52	/* S_DMA_51 */
+#define OMAP24XX_DMA_UART3_TX		53	/* S_DMA_52 */
+#define OMAP24XX_DMA_UART3_RX		54	/* S_DMA_53 */
+#define OMAP24XX_DMA_USB_W2FC_TX0	55	/* S_DMA_54 */
+#define OMAP24XX_DMA_USB_W2FC_RX0	56	/* S_DMA_55 */
+#define OMAP24XX_DMA_USB_W2FC_TX1	57	/* S_DMA_56 */
+#define OMAP24XX_DMA_USB_W2FC_RX1	58	/* S_DMA_57 */
+#define OMAP24XX_DMA_USB_W2FC_TX2	59	/* S_DMA_58 */
+#define OMAP24XX_DMA_USB_W2FC_RX2	60	/* S_DMA_59 */
+#define OMAP24XX_DMA_MMC1_TX		61	/* S_DMA_60 */
+#define OMAP24XX_DMA_MMC1_RX		62	/* S_DMA_61 */
+#define OMAP24XX_DMA_MS			63	/* S_DMA_62 */
+#define OMAP242X_DMA_EXT_DMAREQ5	64	/* S_DMA_63 */
+#define OMAP243X_DMA_EXT_DMAREQ6	64	/* S_DMA_63 */
+#define OMAP34XX_DMA_EXT_DMAREQ3	64	/* S_DMA_63 */
+#define OMAP34XX_DMA_AES2_TX		65	/* S_DMA_64 */
+#define OMAP34XX_DMA_AES2_RX		66	/* S_DMA_65 */
+#define OMAP34XX_DMA_DES2_TX		67	/* S_DMA_66 */
+#define OMAP34XX_DMA_DES2_RX		68	/* S_DMA_67 */
+#define OMAP34XX_DMA_SHA1MD5_RX		69	/* S_DMA_68 */
+#define OMAP34XX_DMA_SPI4_TX0		70	/* S_DMA_69 */
+#define OMAP34XX_DMA_SPI4_RX0		71	/* S_DMA_70 */
+#define OMAP34XX_DSS_DMA0		72	/* S_DMA_71 */
+#define OMAP34XX_DSS_DMA1		73	/* S_DMA_72 */
+#define OMAP34XX_DSS_DMA2		74	/* S_DMA_73 */
+#define OMAP34XX_DSS_DMA3		75	/* S_DMA_74 */
+#define OMAP34XX_DMA_MMC3_TX		77	/* S_DMA_76 */
+#define OMAP34XX_DMA_MMC3_RX		78	/* S_DMA_77 */
+#define OMAP34XX_DMA_USIM_TX		79	/* S_DMA_78 */
+#define OMAP34XX_DMA_USIM_RX		80	/* S_DMA_79 */
+
+#define OMAP36XX_DMA_UART4_TX		81	/* S_DMA_80 */
+#define OMAP36XX_DMA_UART4_RX		82	/* S_DMA_81 */
+/*----------------------------------------------------------------------------*/
+
+#define OMAP1_DMA_TOUT_IRQ		(1 << 0)
+#define OMAP_DMA_DROP_IRQ		(1 << 1)
+#define OMAP_DMA_HALF_IRQ		(1 << 2)
+#define OMAP_DMA_FRAME_IRQ		(1 << 3)
+#define OMAP_DMA_LAST_IRQ		(1 << 4)
+#define OMAP_DMA_BLOCK_IRQ		(1 << 5)
+#define OMAP1_DMA_SYNC_IRQ		(1 << 6)
+#define OMAP2_DMA_PKT_IRQ		(1 << 7)
+#define OMAP2_DMA_TRANS_ERR_IRQ		(1 << 8)
+#define OMAP2_DMA_SECURE_ERR_IRQ	(1 << 9)
+#define OMAP2_DMA_SUPERVISOR_ERR_IRQ	(1 << 10)
+#define OMAP2_DMA_MISALIGNED_ERR_IRQ	(1 << 11)
+
+#define OMAP_DMA_CCR_EN			(1 << 7)
+#define OMAP_DMA_CCR_RD_ACTIVE		(1 << 9)
+#define OMAP_DMA_CCR_WR_ACTIVE		(1 << 10)
+#define OMAP_DMA_CCR_SEL_SRC_DST_SYNC	(1 << 24)
+#define OMAP_DMA_CCR_BUFFERING_DISABLE	(1 << 25)
+
+#define OMAP_DMA_DATA_TYPE_S8		0x00
+#define OMAP_DMA_DATA_TYPE_S16		0x01
+#define OMAP_DMA_DATA_TYPE_S32		0x02
+
+#define OMAP_DMA_SYNC_ELEMENT		0x00
+#define OMAP_DMA_SYNC_FRAME		0x01
+#define OMAP_DMA_SYNC_BLOCK		0x02
+#define OMAP_DMA_SYNC_PACKET		0x03
+
+#define OMAP_DMA_DST_SYNC_PREFETCH	0x02
+#define OMAP_DMA_SRC_SYNC		0x01
+#define OMAP_DMA_DST_SYNC		0x00
+
+#define OMAP_DMA_PORT_EMIFF		0x00
+#define OMAP_DMA_PORT_EMIFS		0x01
+#define OMAP_DMA_PORT_OCP_T1		0x02
+#define OMAP_DMA_PORT_TIPB		0x03
+#define OMAP_DMA_PORT_OCP_T2		0x04
+#define OMAP_DMA_PORT_MPUI		0x05
+
+#define OMAP_DMA_AMODE_CONSTANT		0x00
+#define OMAP_DMA_AMODE_POST_INC		0x01
+#define OMAP_DMA_AMODE_SINGLE_IDX	0x02
+#define OMAP_DMA_AMODE_DOUBLE_IDX	0x03
+
+#define DMA_DEFAULT_FIFO_DEPTH		0x10
+#define DMA_DEFAULT_ARB_RATE		0x01
+/* Pass THREAD_RESERVE ORed with THREAD_FIFO for tparams */
+#define DMA_THREAD_RESERVE_NORM		(0x00 << 12) /* Def */
+#define DMA_THREAD_RESERVE_ONET		(0x01 << 12)
+#define DMA_THREAD_RESERVE_TWOT		(0x02 << 12)
+#define DMA_THREAD_RESERVE_THREET	(0x03 << 12)
+#define DMA_THREAD_FIFO_NONE		(0x00 << 14) /* Def */
+#define DMA_THREAD_FIFO_75		(0x01 << 14)
+#define DMA_THREAD_FIFO_25		(0x02 << 14)
+#define DMA_THREAD_FIFO_50		(0x03 << 14)
+
+/* DMA4_OCP_SYSCONFIG bits */
+#define DMA_SYSCONFIG_MIDLEMODE_MASK		(3 << 12)
+#define DMA_SYSCONFIG_CLOCKACTIVITY_MASK	(3 << 8)
+#define DMA_SYSCONFIG_EMUFREE			(1 << 5)
+#define DMA_SYSCONFIG_SIDLEMODE_MASK		(3 << 3)
+#define DMA_SYSCONFIG_SOFTRESET			(1 << 2)
+#define DMA_SYSCONFIG_AUTOIDLE			(1 << 0)
+
+#define DMA_SYSCONFIG_MIDLEMODE(n)		((n) << 12)
+#define DMA_SYSCONFIG_SIDLEMODE(n)		((n) << 3)
+
+#define DMA_IDLEMODE_SMARTIDLE			0x2
+#define DMA_IDLEMODE_NO_IDLE			0x1
+#define DMA_IDLEMODE_FORCE_IDLE			0x0
+
+/* Chaining modes*/
+#ifndef CONFIG_ARCH_OMAP1
+#define OMAP_DMA_STATIC_CHAIN		0x1
+#define OMAP_DMA_DYNAMIC_CHAIN		0x2
+#define OMAP_DMA_CHAIN_ACTIVE		0x1
+#define OMAP_DMA_CHAIN_INACTIVE		0x0
+#endif
+
+#define DMA_CH_PRIO_HIGH		0x1
+#define DMA_CH_PRIO_LOW			0x0 /* Def */
+
+/* Errata handling */
+#define IS_DMA_ERRATA(id)		(errata & (id))
+#define SET_DMA_ERRATA(id)		(errata |= (id))
+
+#define DMA_ERRATA_IFRAME_BUFFERING	BIT(0x0)
+#define DMA_ERRATA_PARALLEL_CHANNELS	BIT(0x1)
+#define DMA_ERRATA_i378			BIT(0x2)
+#define DMA_ERRATA_i541			BIT(0x3)
+#define DMA_ERRATA_i88			BIT(0x4)
+#define DMA_ERRATA_3_3			BIT(0x5)
+#define DMA_ROMCODE_BUG			BIT(0x6)
+
+/* Attributes for OMAP DMA Contrller */
+#define DMA_LINKED_LCH			BIT(0x0)
+#define GLOBAL_PRIORITY			BIT(0x1)
+#define RESERVE_CHANNEL			BIT(0x2)
+#define IS_CSSA_32			BIT(0x3)
+#define IS_CDSA_32			BIT(0x4)
+#define IS_RW_PRIORITY			BIT(0x5)
+#define ENABLE_1510_MODE		BIT(0x6)
+#define SRC_PORT			BIT(0x7)
+#define DST_PORT			BIT(0x8)
+#define SRC_INDEX			BIT(0x9)
+#define DST_INDEX			BIT(0xA)
+#define IS_BURST_ONLY4			BIT(0xB)
+#define CLEAR_CSR_ON_READ		BIT(0xC)
+#define IS_WORD_16			BIT(0xD)
+
+enum omap_reg_offsets {
+
+GCR,		GSCR,		GRST1,		HW_ID,
+PCH2_ID,	PCH0_ID,	PCH1_ID,	PCHG_ID,
+PCHD_ID,	CAPS_0,		CAPS_1,		CAPS_2,
+CAPS_3,		CAPS_4,		PCH2_SR,	PCH0_SR,
+PCH1_SR,	PCHD_SR,	REVISION,	IRQSTATUS_L0,
+IRQSTATUS_L1,	IRQSTATUS_L2,	IRQSTATUS_L3,	IRQENABLE_L0,
+IRQENABLE_L1,	IRQENABLE_L2,	IRQENABLE_L3,	SYSSTATUS,
+OCP_SYSCONFIG,
+
+/* omap1+ specific */
+CPC, CCR2, LCH_CTRL,
+
+/* Common registers for all omap's */
+CSDP,		CCR,		CICR,		CSR,
+CEN,		CFN,		CSFI,		CSEI,
+CSAC,		CDAC,		CDEI,
+CDFI,		CLNK_CTRL,
+
+/* Channel specific registers */
+CSSA,		CDSA,		COLOR,
+CCEN,		CCFN,
+
+/* omap3630 and omap4 specific */
+CDP,		CNDP,		CCDN,
+
+};
+
+enum omap_dma_burst_mode {
+	OMAP_DMA_DATA_BURST_DIS = 0,
+	OMAP_DMA_DATA_BURST_4,
+	OMAP_DMA_DATA_BURST_8,
+	OMAP_DMA_DATA_BURST_16,
+};
+
+enum end_type {
+	OMAP_DMA_LITTLE_ENDIAN = 0,
+	OMAP_DMA_BIG_ENDIAN
+};
+
+enum omap_dma_color_mode {
+	OMAP_DMA_COLOR_DIS = 0,
+	OMAP_DMA_CONSTANT_FILL,
+	OMAP_DMA_TRANSPARENT_COPY
+};
+
+enum omap_dma_write_mode {
+	OMAP_DMA_WRITE_NON_POSTED = 0,
+	OMAP_DMA_WRITE_POSTED,
+	OMAP_DMA_WRITE_LAST_NON_POSTED
+};
+
+enum omap_dma_channel_mode {
+	OMAP_DMA_LCH_2D = 0,
+	OMAP_DMA_LCH_G,
+	OMAP_DMA_LCH_P,
+	OMAP_DMA_LCH_PD
+};
+
+struct omap_dma_channel_params {
+	int data_type;		/* data type 8,16,32 */
+	int elem_count;		/* number of elements in a frame */
+	int frame_count;	/* number of frames in a element */
+
+	int src_port;		/* Only on OMAP1 REVISIT: Is this needed? */
+	int src_amode;		/* constant, post increment, indexed,
+					double indexed */
+	unsigned long src_start;	/* source address : physical */
+	int src_ei;		/* source element index */
+	int src_fi;		/* source frame index */
+
+	int dst_port;		/* Only on OMAP1 REVISIT: Is this needed? */
+	int dst_amode;		/* constant, post increment, indexed,
+					double indexed */
+	unsigned long dst_start;	/* source address : physical */
+	int dst_ei;		/* source element index */
+	int dst_fi;		/* source frame index */
+
+	int trigger;		/* trigger attached if the channel is
+					synchronized */
+	int sync_mode;		/* sycn on element, frame , block or packet */
+	int src_or_dst_synch;	/* source synch(1) or destination synch(0) */
+
+	int ie;			/* interrupt enabled */
+
+	unsigned char read_prio;/* read priority */
+	unsigned char write_prio;/* write priority */
+
+#ifndef CONFIG_ARCH_OMAP1
+	enum omap_dma_burst_mode burst_mode; /* Burst mode 4/8/16 words */
+#endif
+};
+
+struct omap_dma_lch {
+	int next_lch;
+	int dev_id;
+	u16 saved_csr;
+	u16 enabled_irqs;
+	const char *dev_name;
+	void (*callback)(int lch, u16 ch_status, void *data);
+	void *data;
+	long flags;
+	/* required for Dynamic chaining */
+	int prev_linked_ch;
+	int next_linked_ch;
+	int state;
+	int chain_id;
+	int status;
+};
+
+struct omap_dma_dev_attr {
+	u32 dev_caps;
+	u16 lch_count;
+	u16 chan_count;
+	struct omap_dma_lch *chan;
+};
+
+/* System DMA platform data structure */
+struct omap_system_dma_plat_info {
+	struct omap_dma_dev_attr *dma_attr;
+	u32 errata;
+	void (*disable_irq_lch)(int lch);
+	void (*show_dma_caps)(void);
+	void (*clear_lch_regs)(int lch);
+	void (*clear_dma)(int lch);
+	void (*dma_write)(u32 val, int reg, int lch);
+	u32 (*dma_read)(int reg, int lch);
+};
+
+extern void omap_set_dma_priority(int lch, int dst_port, int priority);
+extern int omap_request_dma(int dev_id, const char *dev_name,
+			void (*callback)(int lch, u16 ch_status, void *data),
+			void *data, int *dma_ch);
+extern void omap_enable_dma_irq(int ch, u16 irq_bits);
+extern void omap_disable_dma_irq(int ch, u16 irq_bits);
+extern void omap_free_dma(int ch);
+extern void omap_start_dma(int lch);
+extern void omap_stop_dma(int lch);
+extern void omap_set_dma_transfer_params(int lch, int data_type,
+					 int elem_count, int frame_count,
+					 int sync_mode,
+					 int dma_trigger, int src_or_dst_synch);
+extern void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode,
+				    u32 color);
+extern void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode);
+extern void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode);
+
+extern void omap_set_dma_src_params(int lch, int src_port, int src_amode,
+				    unsigned long src_start,
+				    int src_ei, int src_fi);
+extern void omap_set_dma_src_index(int lch, int eidx, int fidx);
+extern void omap_set_dma_src_data_pack(int lch, int enable);
+extern void omap_set_dma_src_burst_mode(int lch,
+					enum omap_dma_burst_mode burst_mode);
+
+extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
+				     unsigned long dest_start,
+				     int dst_ei, int dst_fi);
+extern void omap_set_dma_dest_index(int lch, int eidx, int fidx);
+extern void omap_set_dma_dest_data_pack(int lch, int enable);
+extern void omap_set_dma_dest_burst_mode(int lch,
+					 enum omap_dma_burst_mode burst_mode);
+
+extern void omap_set_dma_params(int lch,
+				struct omap_dma_channel_params *params);
+
+extern void omap_dma_link_lch(int lch_head, int lch_queue);
+extern void omap_dma_unlink_lch(int lch_head, int lch_queue);
+
+extern int omap_set_dma_callback(int lch,
+			void (*callback)(int lch, u16 ch_status, void *data),
+			void *data);
+extern dma_addr_t omap_get_dma_src_pos(int lch);
+extern dma_addr_t omap_get_dma_dst_pos(int lch);
+extern void omap_clear_dma(int lch);
+extern int omap_get_dma_active_status(int lch);
+extern int omap_dma_running(void);
+extern void omap_dma_set_global_params(int arb_rate, int max_fifo_depth,
+				       int tparams);
+extern int omap_dma_set_prio_lch(int lch, unsigned char read_prio,
+				 unsigned char write_prio);
+extern void omap_set_dma_dst_endian_type(int lch, enum end_type etype);
+extern void omap_set_dma_src_endian_type(int lch, enum end_type etype);
+extern int omap_get_dma_index(int lch, int *ei, int *fi);
+
+void omap_dma_global_context_save(void);
+void omap_dma_global_context_restore(void);
+
+extern void omap_dma_disable_irq(int lch);
+
+/* Chaining APIs */
+#ifndef CONFIG_ARCH_OMAP1
+extern int omap_request_dma_chain(int dev_id, const char *dev_name,
+				  void (*callback) (int lch, u16 ch_status,
+						    void *data),
+				  int *chain_id, int no_of_chans,
+				  int chain_mode,
+				  struct omap_dma_channel_params params);
+extern int omap_free_dma_chain(int chain_id);
+extern int omap_dma_chain_a_transfer(int chain_id, int src_start,
+				     int dest_start, int elem_count,
+				     int frame_count, void *callbk_data);
+extern int omap_start_dma_chain_transfers(int chain_id);
+extern int omap_stop_dma_chain_transfers(int chain_id);
+extern int omap_get_dma_chain_index(int chain_id, int *ei, int *fi);
+extern int omap_get_dma_chain_dst_pos(int chain_id);
+extern int omap_get_dma_chain_src_pos(int chain_id);
+
+extern int omap_modify_dma_chain_params(int chain_id,
+					struct omap_dma_channel_params params);
+extern int omap_dma_chain_status(int chain_id);
+#endif
+
+#if defined(CONFIG_ARCH_OMAP1) && defined(CONFIG_FB_OMAP)
+#include <mach/lcd_dma.h>
+#else
+static inline int omap_lcd_dma_running(void)
+{
+	return 0;
+}
+#endif
+
+#endif /* __ASM_ARCH_DMA_H */