Separate register defines into header file. This is required to support a slightly different version of the register map in new hardware versions of the XDMAC. Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> --- drivers/dma/at_xdmac.c | 143 +-------------------------------- drivers/dma/at_xdmac_regs.h | 154 ++++++++++++++++++++++++++++++++++++ 2 files changed, 155 insertions(+), 142 deletions(-) create mode 100644 drivers/dma/at_xdmac_regs.h diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c index fd92f048c491..fab19e00a7be 100644 --- a/drivers/dma/at_xdmac.c +++ b/drivers/dma/at_xdmac.c @@ -24,148 +24,7 @@ #include "dmaengine.h" -/* Global registers */ -#define AT_XDMAC_GTYPE 0x00 /* Global Type Register */ -#define AT_XDMAC_NB_CH(i) (((i) & 0x1F) + 1) /* Number of Channels Minus One */ -#define AT_XDMAC_FIFO_SZ(i) (((i) >> 5) & 0x7FF) /* Number of Bytes */ -#define AT_XDMAC_NB_REQ(i) ((((i) >> 16) & 0x3F) + 1) /* Number of Peripheral Requests Minus One */ -#define AT_XDMAC_GCFG 0x04 /* Global Configuration Register */ -#define AT_XDMAC_GWAC 0x08 /* Global Weighted Arbiter Configuration Register */ -#define AT_XDMAC_GIE 0x0C /* Global Interrupt Enable Register */ -#define AT_XDMAC_GID 0x10 /* Global Interrupt Disable Register */ -#define AT_XDMAC_GIM 0x14 /* Global Interrupt Mask Register */ -#define AT_XDMAC_GIS 0x18 /* Global Interrupt Status Register */ -#define AT_XDMAC_GE 0x1C /* Global Channel Enable Register */ -#define AT_XDMAC_GD 0x20 /* Global Channel Disable Register */ -#define AT_XDMAC_GS 0x24 /* Global Channel Status Register */ -#define AT_XDMAC_GRS 0x28 /* Global Channel Read Suspend Register */ -#define AT_XDMAC_GWS 0x2C /* Global Write Suspend Register */ -#define AT_XDMAC_GRWS 0x30 /* Global Channel Read Write Suspend Register */ -#define AT_XDMAC_GRWR 0x34 /* Global Channel Read Write Resume Register */ -#define AT_XDMAC_GSWR 0x38 /* Global Channel Software Request Register */ -#define AT_XDMAC_GSWS 0x3C /* Global channel Software Request Status Register */ -#define AT_XDMAC_GSWF 0x40 /* Global Channel Software Flush Request Register */ -#define AT_XDMAC_VERSION 0xFFC /* XDMAC Version Register */ - -/* Channel relative registers offsets */ -#define AT_XDMAC_CIE 0x00 /* Channel Interrupt Enable Register */ -#define AT_XDMAC_CIE_BIE BIT(0) /* End of Block Interrupt Enable Bit */ -#define AT_XDMAC_CIE_LIE BIT(1) /* End of Linked List Interrupt Enable Bit */ -#define AT_XDMAC_CIE_DIE BIT(2) /* End of Disable Interrupt Enable Bit */ -#define AT_XDMAC_CIE_FIE BIT(3) /* End of Flush Interrupt Enable Bit */ -#define AT_XDMAC_CIE_RBEIE BIT(4) /* Read Bus Error Interrupt Enable Bit */ -#define AT_XDMAC_CIE_WBEIE BIT(5) /* Write Bus Error Interrupt Enable Bit */ -#define AT_XDMAC_CIE_ROIE BIT(6) /* Request Overflow Interrupt Enable Bit */ -#define AT_XDMAC_CID 0x04 /* Channel Interrupt Disable Register */ -#define AT_XDMAC_CID_BID BIT(0) /* End of Block Interrupt Disable Bit */ -#define AT_XDMAC_CID_LID BIT(1) /* End of Linked List Interrupt Disable Bit */ -#define AT_XDMAC_CID_DID BIT(2) /* End of Disable Interrupt Disable Bit */ -#define AT_XDMAC_CID_FID BIT(3) /* End of Flush Interrupt Disable Bit */ -#define AT_XDMAC_CID_RBEID BIT(4) /* Read Bus Error Interrupt Disable Bit */ -#define AT_XDMAC_CID_WBEID BIT(5) /* Write Bus Error Interrupt Disable Bit */ -#define AT_XDMAC_CID_ROID BIT(6) /* Request Overflow Interrupt Disable Bit */ -#define AT_XDMAC_CIM 0x08 /* Channel Interrupt Mask Register */ -#define AT_XDMAC_CIM_BIM BIT(0) /* End of Block Interrupt Mask Bit */ -#define AT_XDMAC_CIM_LIM BIT(1) /* End of Linked List Interrupt Mask Bit */ -#define AT_XDMAC_CIM_DIM BIT(2) /* End of Disable Interrupt Mask Bit */ -#define AT_XDMAC_CIM_FIM BIT(3) /* End of Flush Interrupt Mask Bit */ -#define AT_XDMAC_CIM_RBEIM BIT(4) /* Read Bus Error Interrupt Mask Bit */ -#define AT_XDMAC_CIM_WBEIM BIT(5) /* Write Bus Error Interrupt Mask Bit */ -#define AT_XDMAC_CIM_ROIM BIT(6) /* Request Overflow Interrupt Mask Bit */ -#define AT_XDMAC_CIS 0x0C /* Channel Interrupt Status Register */ -#define AT_XDMAC_CIS_BIS BIT(0) /* End of Block Interrupt Status Bit */ -#define AT_XDMAC_CIS_LIS BIT(1) /* End of Linked List Interrupt Status Bit */ -#define AT_XDMAC_CIS_DIS BIT(2) /* End of Disable Interrupt Status Bit */ -#define AT_XDMAC_CIS_FIS BIT(3) /* End of Flush Interrupt Status Bit */ -#define AT_XDMAC_CIS_RBEIS BIT(4) /* Read Bus Error Interrupt Status Bit */ -#define AT_XDMAC_CIS_WBEIS BIT(5) /* Write Bus Error Interrupt Status Bit */ -#define AT_XDMAC_CIS_ROIS BIT(6) /* Request Overflow Interrupt Status Bit */ -#define AT_XDMAC_CSA 0x10 /* Channel Source Address Register */ -#define AT_XDMAC_CDA 0x14 /* Channel Destination Address Register */ -#define AT_XDMAC_CNDA 0x18 /* Channel Next Descriptor Address Register */ -#define AT_XDMAC_CNDA_NDAIF(i) ((i) & 0x1) /* Channel x Next Descriptor Interface */ -#define AT_XDMAC_CNDA_NDA(i) ((i) & 0xfffffffc) /* Channel x Next Descriptor Address */ -#define AT_XDMAC_CNDC 0x1C /* Channel Next Descriptor Control Register */ -#define AT_XDMAC_CNDC_NDE (0x1 << 0) /* Channel x Next Descriptor Enable */ -#define AT_XDMAC_CNDC_NDSUP (0x1 << 1) /* Channel x Next Descriptor Source Update */ -#define AT_XDMAC_CNDC_NDDUP (0x1 << 2) /* Channel x Next Descriptor Destination Update */ -#define AT_XDMAC_CNDC_NDVIEW_NDV0 (0x0 << 3) /* Channel x Next Descriptor View 0 */ -#define AT_XDMAC_CNDC_NDVIEW_NDV1 (0x1 << 3) /* Channel x Next Descriptor View 1 */ -#define AT_XDMAC_CNDC_NDVIEW_NDV2 (0x2 << 3) /* Channel x Next Descriptor View 2 */ -#define AT_XDMAC_CNDC_NDVIEW_NDV3 (0x3 << 3) /* Channel x Next Descriptor View 3 */ -#define AT_XDMAC_CUBC 0x20 /* Channel Microblock Control Register */ -#define AT_XDMAC_CBC 0x24 /* Channel Block Control Register */ -#define AT_XDMAC_CC 0x28 /* Channel Configuration Register */ -#define AT_XDMAC_CC_TYPE (0x1 << 0) /* Channel Transfer Type */ -#define AT_XDMAC_CC_TYPE_MEM_TRAN (0x0 << 0) /* Memory to Memory Transfer */ -#define AT_XDMAC_CC_TYPE_PER_TRAN (0x1 << 0) /* Peripheral to Memory or Memory to Peripheral Transfer */ -#define AT_XDMAC_CC_MBSIZE_MASK (0x3 << 1) -#define AT_XDMAC_CC_MBSIZE_SINGLE (0x0 << 1) -#define AT_XDMAC_CC_MBSIZE_FOUR (0x1 << 1) -#define AT_XDMAC_CC_MBSIZE_EIGHT (0x2 << 1) -#define AT_XDMAC_CC_MBSIZE_SIXTEEN (0x3 << 1) -#define AT_XDMAC_CC_DSYNC (0x1 << 4) /* Channel Synchronization */ -#define AT_XDMAC_CC_DSYNC_PER2MEM (0x0 << 4) -#define AT_XDMAC_CC_DSYNC_MEM2PER (0x1 << 4) -#define AT_XDMAC_CC_PROT (0x1 << 5) /* Channel Protection */ -#define AT_XDMAC_CC_PROT_SEC (0x0 << 5) -#define AT_XDMAC_CC_PROT_UNSEC (0x1 << 5) -#define AT_XDMAC_CC_SWREQ (0x1 << 6) /* Channel Software Request Trigger */ -#define AT_XDMAC_CC_SWREQ_HWR_CONNECTED (0x0 << 6) -#define AT_XDMAC_CC_SWREQ_SWR_CONNECTED (0x1 << 6) -#define AT_XDMAC_CC_MEMSET (0x1 << 7) /* Channel Fill Block of memory */ -#define AT_XDMAC_CC_MEMSET_NORMAL_MODE (0x0 << 7) -#define AT_XDMAC_CC_MEMSET_HW_MODE (0x1 << 7) -#define AT_XDMAC_CC_CSIZE(i) ((0x7 & (i)) << 8) /* Channel Chunk Size */ -#define AT_XDMAC_CC_DWIDTH_OFFSET 11 -#define AT_XDMAC_CC_DWIDTH_MASK (0x3 << AT_XDMAC_CC_DWIDTH_OFFSET) -#define AT_XDMAC_CC_DWIDTH(i) ((0x3 & (i)) << AT_XDMAC_CC_DWIDTH_OFFSET) /* Channel Data Width */ -#define AT_XDMAC_CC_DWIDTH_BYTE 0x0 -#define AT_XDMAC_CC_DWIDTH_HALFWORD 0x1 -#define AT_XDMAC_CC_DWIDTH_WORD 0x2 -#define AT_XDMAC_CC_DWIDTH_DWORD 0x3 -#define AT_XDMAC_CC_SIF(i) ((0x1 & (i)) << 13) /* Channel Source Interface Identifier */ -#define AT_XDMAC_CC_DIF(i) ((0x1 & (i)) << 14) /* Channel Destination Interface Identifier */ -#define AT_XDMAC_CC_SAM_MASK (0x3 << 16) /* Channel Source Addressing Mode */ -#define AT_XDMAC_CC_SAM_FIXED_AM (0x0 << 16) -#define AT_XDMAC_CC_SAM_INCREMENTED_AM (0x1 << 16) -#define AT_XDMAC_CC_SAM_UBS_AM (0x2 << 16) -#define AT_XDMAC_CC_SAM_UBS_DS_AM (0x3 << 16) -#define AT_XDMAC_CC_DAM_MASK (0x3 << 18) /* Channel Source Addressing Mode */ -#define AT_XDMAC_CC_DAM_FIXED_AM (0x0 << 18) -#define AT_XDMAC_CC_DAM_INCREMENTED_AM (0x1 << 18) -#define AT_XDMAC_CC_DAM_UBS_AM (0x2 << 18) -#define AT_XDMAC_CC_DAM_UBS_DS_AM (0x3 << 18) -#define AT_XDMAC_CC_INITD (0x1 << 21) /* Channel Initialization Terminated (read only) */ -#define AT_XDMAC_CC_INITD_TERMINATED (0x0 << 21) -#define AT_XDMAC_CC_INITD_IN_PROGRESS (0x1 << 21) -#define AT_XDMAC_CC_RDIP (0x1 << 22) /* Read in Progress (read only) */ -#define AT_XDMAC_CC_RDIP_DONE (0x0 << 22) -#define AT_XDMAC_CC_RDIP_IN_PROGRESS (0x1 << 22) -#define AT_XDMAC_CC_WRIP (0x1 << 23) /* Write in Progress (read only) */ -#define AT_XDMAC_CC_WRIP_DONE (0x0 << 23) -#define AT_XDMAC_CC_WRIP_IN_PROGRESS (0x1 << 23) -#define AT_XDMAC_CC_PERID(i) (0x7f & (i) << 24) /* Channel Peripheral Identifier */ -#define AT_XDMAC_CDS_MSP 0x2C /* Channel Data Stride Memory Set Pattern */ -#define AT_XDMAC_CSUS 0x30 /* Channel Source Microblock Stride */ -#define AT_XDMAC_CDUS 0x34 /* Channel Destination Microblock Stride */ - -#define AT_XDMAC_CHAN_REG_BASE 0x50 /* Channel registers base address */ - -/* Microblock control members */ -#define AT_XDMAC_MBR_UBC_UBLEN_MAX 0xFFFFFFUL /* Maximum Microblock Length */ -#define AT_XDMAC_MBR_UBC_NDE (0x1 << 24) /* Next Descriptor Enable */ -#define AT_XDMAC_MBR_UBC_NSEN (0x1 << 25) /* Next Descriptor Source Update */ -#define AT_XDMAC_MBR_UBC_NDEN (0x1 << 26) /* Next Descriptor Destination Update */ -#define AT_XDMAC_MBR_UBC_NDV0 (0x0 << 27) /* Next Descriptor View 0 */ -#define AT_XDMAC_MBR_UBC_NDV1 (0x1 << 27) /* Next Descriptor View 1 */ -#define AT_XDMAC_MBR_UBC_NDV2 (0x2 << 27) /* Next Descriptor View 2 */ -#define AT_XDMAC_MBR_UBC_NDV3 (0x3 << 27) /* Next Descriptor View 3 */ - -#define AT_XDMAC_MAX_CHAN 0x20 -#define AT_XDMAC_MAX_CSIZE 16 /* 16 data */ -#define AT_XDMAC_MAX_DWIDTH 8 /* 64 bits */ -#define AT_XDMAC_RESIDUE_MAX_RETRIES 5 +#include "at_xdmac_regs.h" #define AT_XDMAC_DMA_BUSWIDTHS\ (BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) |\ diff --git a/drivers/dma/at_xdmac_regs.h b/drivers/dma/at_xdmac_regs.h new file mode 100644 index 000000000000..3f7dda4c5743 --- /dev/null +++ b/drivers/dma/at_xdmac_regs.h @@ -0,0 +1,154 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Header file for the Atmel Extensible DMA Controller (aka XDMAC on AT91 systems) + * + * Copyright (C) 2014-2020 Microchip Technology, Inc. and its subsidiaries + * + */ +#ifndef AT_XDMAC_REGS_H +#define AT_XDMAC_REGS_H + +/* Global registers */ +#define AT_XDMAC_GTYPE 0x00 /* Global Type Register */ +#define AT_XDMAC_NB_CH(i) (((i) & 0x1F) + 1) /* Number of Channels Minus One */ +#define AT_XDMAC_FIFO_SZ(i) (((i) >> 5) & 0x7FF) /* Number of Bytes */ +#define AT_XDMAC_NB_REQ(i) ((((i) >> 16) & 0x3F) + 1) /* Number of Peripheral Requests Minus One */ +#define AT_XDMAC_GCFG 0x04 /* Global Configuration Register */ +#define AT_XDMAC_GWAC 0x08 /* Global Weighted Arbiter Configuration Register */ +#define AT_XDMAC_GIE 0x0C /* Global Interrupt Enable Register */ +#define AT_XDMAC_GID 0x10 /* Global Interrupt Disable Register */ +#define AT_XDMAC_GIM 0x14 /* Global Interrupt Mask Register */ +#define AT_XDMAC_GIS 0x18 /* Global Interrupt Status Register */ +#define AT_XDMAC_GE 0x1C /* Global Channel Enable Register */ +#define AT_XDMAC_GD 0x20 /* Global Channel Disable Register */ +#define AT_XDMAC_GS 0x24 /* Global Channel Status Register */ +#define AT_XDMAC_GRS 0x28 /* Global Channel Read Suspend Register */ +#define AT_XDMAC_GWS 0x2C /* Global Write Suspend Register */ +#define AT_XDMAC_GRWS 0x30 /* Global Channel Read Write Suspend Register */ +#define AT_XDMAC_GRWR 0x34 /* Global Channel Read Write Resume Register */ +#define AT_XDMAC_GSWR 0x38 /* Global Channel Software Request Register */ +#define AT_XDMAC_GSWS 0x3C /* Global channel Software Request Status Register */ +#define AT_XDMAC_GSWF 0x40 /* Global Channel Software Flush Request Register */ +#define AT_XDMAC_VERSION 0xFFC /* XDMAC Version Register */ + +/* Channel relative registers offsets */ +#define AT_XDMAC_CIE 0x00 /* Channel Interrupt Enable Register */ +#define AT_XDMAC_CIE_BIE BIT(0) /* End of Block Interrupt Enable Bit */ +#define AT_XDMAC_CIE_LIE BIT(1) /* End of Linked List Interrupt Enable Bit */ +#define AT_XDMAC_CIE_DIE BIT(2) /* End of Disable Interrupt Enable Bit */ +#define AT_XDMAC_CIE_FIE BIT(3) /* End of Flush Interrupt Enable Bit */ +#define AT_XDMAC_CIE_RBEIE BIT(4) /* Read Bus Error Interrupt Enable Bit */ +#define AT_XDMAC_CIE_WBEIE BIT(5) /* Write Bus Error Interrupt Enable Bit */ +#define AT_XDMAC_CIE_ROIE BIT(6) /* Request Overflow Interrupt Enable Bit */ +#define AT_XDMAC_CID 0x04 /* Channel Interrupt Disable Register */ +#define AT_XDMAC_CID_BID BIT(0) /* End of Block Interrupt Disable Bit */ +#define AT_XDMAC_CID_LID BIT(1) /* End of Linked List Interrupt Disable Bit */ +#define AT_XDMAC_CID_DID BIT(2) /* End of Disable Interrupt Disable Bit */ +#define AT_XDMAC_CID_FID BIT(3) /* End of Flush Interrupt Disable Bit */ +#define AT_XDMAC_CID_RBEID BIT(4) /* Read Bus Error Interrupt Disable Bit */ +#define AT_XDMAC_CID_WBEID BIT(5) /* Write Bus Error Interrupt Disable Bit */ +#define AT_XDMAC_CID_ROID BIT(6) /* Request Overflow Interrupt Disable Bit */ +#define AT_XDMAC_CIM 0x08 /* Channel Interrupt Mask Register */ +#define AT_XDMAC_CIM_BIM BIT(0) /* End of Block Interrupt Mask Bit */ +#define AT_XDMAC_CIM_LIM BIT(1) /* End of Linked List Interrupt Mask Bit */ +#define AT_XDMAC_CIM_DIM BIT(2) /* End of Disable Interrupt Mask Bit */ +#define AT_XDMAC_CIM_FIM BIT(3) /* End of Flush Interrupt Mask Bit */ +#define AT_XDMAC_CIM_RBEIM BIT(4) /* Read Bus Error Interrupt Mask Bit */ +#define AT_XDMAC_CIM_WBEIM BIT(5) /* Write Bus Error Interrupt Mask Bit */ +#define AT_XDMAC_CIM_ROIM BIT(6) /* Request Overflow Interrupt Mask Bit */ +#define AT_XDMAC_CIS 0x0C /* Channel Interrupt Status Register */ +#define AT_XDMAC_CIS_BIS BIT(0) /* End of Block Interrupt Status Bit */ +#define AT_XDMAC_CIS_LIS BIT(1) /* End of Linked List Interrupt Status Bit */ +#define AT_XDMAC_CIS_DIS BIT(2) /* End of Disable Interrupt Status Bit */ +#define AT_XDMAC_CIS_FIS BIT(3) /* End of Flush Interrupt Status Bit */ +#define AT_XDMAC_CIS_RBEIS BIT(4) /* Read Bus Error Interrupt Status Bit */ +#define AT_XDMAC_CIS_WBEIS BIT(5) /* Write Bus Error Interrupt Status Bit */ +#define AT_XDMAC_CIS_ROIS BIT(6) /* Request Overflow Interrupt Status Bit */ +#define AT_XDMAC_CSA 0x10 /* Channel Source Address Register */ +#define AT_XDMAC_CDA 0x14 /* Channel Destination Address Register */ +#define AT_XDMAC_CNDA 0x18 /* Channel Next Descriptor Address Register */ +#define AT_XDMAC_CNDA_NDAIF(i) ((i) & 0x1) /* Channel x Next Descriptor Interface */ +#define AT_XDMAC_CNDA_NDA(i) ((i) & 0xfffffffc) /* Channel x Next Descriptor Address */ +#define AT_XDMAC_CNDC 0x1C /* Channel Next Descriptor Control Register */ +#define AT_XDMAC_CNDC_NDE (0x1 << 0) /* Channel x Next Descriptor Enable */ +#define AT_XDMAC_CNDC_NDSUP (0x1 << 1) /* Channel x Next Descriptor Source Update */ +#define AT_XDMAC_CNDC_NDDUP (0x1 << 2) /* Channel x Next Descriptor Destination Update */ +#define AT_XDMAC_CNDC_NDVIEW_NDV0 (0x0 << 3) /* Channel x Next Descriptor View 0 */ +#define AT_XDMAC_CNDC_NDVIEW_NDV1 (0x1 << 3) /* Channel x Next Descriptor View 1 */ +#define AT_XDMAC_CNDC_NDVIEW_NDV2 (0x2 << 3) /* Channel x Next Descriptor View 2 */ +#define AT_XDMAC_CNDC_NDVIEW_NDV3 (0x3 << 3) /* Channel x Next Descriptor View 3 */ +#define AT_XDMAC_CUBC 0x20 /* Channel Microblock Control Register */ +#define AT_XDMAC_CBC 0x24 /* Channel Block Control Register */ +#define AT_XDMAC_CC 0x28 /* Channel Configuration Register */ +#define AT_XDMAC_CC_TYPE (0x1 << 0) /* Channel Transfer Type */ +#define AT_XDMAC_CC_TYPE_MEM_TRAN (0x0 << 0) /* Memory to Memory Transfer */ +#define AT_XDMAC_CC_TYPE_PER_TRAN (0x1 << 0) /* Peripheral to Memory or Memory to Peripheral Transfer */ +#define AT_XDMAC_CC_MBSIZE_MASK (0x3 << 1) +#define AT_XDMAC_CC_MBSIZE_SINGLE (0x0 << 1) +#define AT_XDMAC_CC_MBSIZE_FOUR (0x1 << 1) +#define AT_XDMAC_CC_MBSIZE_EIGHT (0x2 << 1) +#define AT_XDMAC_CC_MBSIZE_SIXTEEN (0x3 << 1) +#define AT_XDMAC_CC_DSYNC (0x1 << 4) /* Channel Synchronization */ +#define AT_XDMAC_CC_DSYNC_PER2MEM (0x0 << 4) +#define AT_XDMAC_CC_DSYNC_MEM2PER (0x1 << 4) +#define AT_XDMAC_CC_PROT (0x1 << 5) /* Channel Protection */ +#define AT_XDMAC_CC_PROT_SEC (0x0 << 5) +#define AT_XDMAC_CC_PROT_UNSEC (0x1 << 5) +#define AT_XDMAC_CC_SWREQ (0x1 << 6) /* Channel Software Request Trigger */ +#define AT_XDMAC_CC_SWREQ_HWR_CONNECTED (0x0 << 6) +#define AT_XDMAC_CC_SWREQ_SWR_CONNECTED (0x1 << 6) +#define AT_XDMAC_CC_MEMSET (0x1 << 7) /* Channel Fill Block of memory */ +#define AT_XDMAC_CC_MEMSET_NORMAL_MODE (0x0 << 7) +#define AT_XDMAC_CC_MEMSET_HW_MODE (0x1 << 7) +#define AT_XDMAC_CC_CSIZE(i) ((0x7 & (i)) << 8) /* Channel Chunk Size */ +#define AT_XDMAC_CC_DWIDTH_OFFSET 11 +#define AT_XDMAC_CC_DWIDTH_MASK (0x3 << AT_XDMAC_CC_DWIDTH_OFFSET) +#define AT_XDMAC_CC_DWIDTH(i) ((0x3 & (i)) << AT_XDMAC_CC_DWIDTH_OFFSET) /* Channel Data Width */ +#define AT_XDMAC_CC_DWIDTH_BYTE 0x0 +#define AT_XDMAC_CC_DWIDTH_HALFWORD 0x1 +#define AT_XDMAC_CC_DWIDTH_WORD 0x2 +#define AT_XDMAC_CC_DWIDTH_DWORD 0x3 +#define AT_XDMAC_CC_SIF(i) ((0x1 & (i)) << 13) /* Channel Source Interface Identifier */ +#define AT_XDMAC_CC_DIF(i) ((0x1 & (i)) << 14) /* Channel Destination Interface Identifier */ +#define AT_XDMAC_CC_SAM_MASK (0x3 << 16) /* Channel Source Addressing Mode */ +#define AT_XDMAC_CC_SAM_FIXED_AM (0x0 << 16) +#define AT_XDMAC_CC_SAM_INCREMENTED_AM (0x1 << 16) +#define AT_XDMAC_CC_SAM_UBS_AM (0x2 << 16) +#define AT_XDMAC_CC_SAM_UBS_DS_AM (0x3 << 16) +#define AT_XDMAC_CC_DAM_MASK (0x3 << 18) /* Channel Source Addressing Mode */ +#define AT_XDMAC_CC_DAM_FIXED_AM (0x0 << 18) +#define AT_XDMAC_CC_DAM_INCREMENTED_AM (0x1 << 18) +#define AT_XDMAC_CC_DAM_UBS_AM (0x2 << 18) +#define AT_XDMAC_CC_DAM_UBS_DS_AM (0x3 << 18) +#define AT_XDMAC_CC_INITD (0x1 << 21) /* Channel Initialization Terminated (read only) */ +#define AT_XDMAC_CC_INITD_TERMINATED (0x0 << 21) +#define AT_XDMAC_CC_INITD_IN_PROGRESS (0x1 << 21) +#define AT_XDMAC_CC_RDIP (0x1 << 22) /* Read in Progress (read only) */ +#define AT_XDMAC_CC_RDIP_DONE (0x0 << 22) +#define AT_XDMAC_CC_RDIP_IN_PROGRESS (0x1 << 22) +#define AT_XDMAC_CC_WRIP (0x1 << 23) /* Write in Progress (read only) */ +#define AT_XDMAC_CC_WRIP_DONE (0x0 << 23) +#define AT_XDMAC_CC_WRIP_IN_PROGRESS (0x1 << 23) +#define AT_XDMAC_CC_PERID(i) (0x7f & (i) << 24) /* Channel Peripheral Identifier */ +#define AT_XDMAC_CDS_MSP 0x2C /* Channel Data Stride Memory Set Pattern */ +#define AT_XDMAC_CSUS 0x30 /* Channel Source Microblock Stride */ +#define AT_XDMAC_CDUS 0x34 /* Channel Destination Microblock Stride */ + +#define AT_XDMAC_CHAN_REG_BASE 0x50 /* Channel registers base address */ + +/* Microblock control members */ +#define AT_XDMAC_MBR_UBC_UBLEN_MAX 0xFFFFFFUL /* Maximum Microblock Length */ +#define AT_XDMAC_MBR_UBC_NDE (0x1 << 24) /* Next Descriptor Enable */ +#define AT_XDMAC_MBR_UBC_NSEN (0x1 << 25) /* Next Descriptor Source Update */ +#define AT_XDMAC_MBR_UBC_NDEN (0x1 << 26) /* Next Descriptor Destination Update */ +#define AT_XDMAC_MBR_UBC_NDV0 (0x0 << 27) /* Next Descriptor View 0 */ +#define AT_XDMAC_MBR_UBC_NDV1 (0x1 << 27) /* Next Descriptor View 1 */ +#define AT_XDMAC_MBR_UBC_NDV2 (0x2 << 27) /* Next Descriptor View 2 */ +#define AT_XDMAC_MBR_UBC_NDV3 (0x3 << 27) /* Next Descriptor View 3 */ + +#define AT_XDMAC_MAX_CHAN 0x20 +#define AT_XDMAC_MAX_CSIZE 16 /* 16 data */ +#define AT_XDMAC_MAX_DWIDTH 8 /* 64 bits */ +#define AT_XDMAC_RESIDUE_MAX_RETRIES 5 + +#endif -- 2.25.1
