1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * mpc8610-pcm.h - ALSA PCM interface for the Freescale MPC8610 SoC 4 */ 5 6 #ifndef _MPC8610_PCM_H 7 #define _MPC8610_PCM_H 8 9 struct ccsr_dma { 10 u8 res0[0x100]; 11 struct ccsr_dma_channel { 12 __be32 mr; /* Mode register */ 13 __be32 sr; /* Status register */ 14 __be32 eclndar; /* Current link descriptor extended addr reg */ 15 __be32 clndar; /* Current link descriptor address register */ 16 __be32 satr; /* Source attributes register */ 17 __be32 sar; /* Source address register */ 18 __be32 datr; /* Destination attributes register */ 19 __be32 dar; /* Destination address register */ 20 __be32 bcr; /* Byte count register */ 21 __be32 enlndar; /* Next link descriptor extended address reg */ 22 __be32 nlndar; /* Next link descriptor address register */ 23 u8 res1[4]; 24 __be32 eclsdar; /* Current list descriptor extended addr reg */ 25 __be32 clsdar; /* Current list descriptor address register */ 26 __be32 enlsdar; /* Next list descriptor extended address reg */ 27 __be32 nlsdar; /* Next list descriptor address register */ 28 __be32 ssr; /* Source stride register */ 29 __be32 dsr; /* Destination stride register */ 30 u8 res2[0x38]; 31 } channel[4]; 32 __be32 dgsr; 33 }; 34 35 #define CCSR_DMA_MR_BWC_DISABLED 0x0F000000 36 #define CCSR_DMA_MR_BWC_SHIFT 24 37 #define CCSR_DMA_MR_BWC_MASK 0x0F000000 38 #define CCSR_DMA_MR_BWC(x) \ 39 ((ilog2(x) << CCSR_DMA_MR_BWC_SHIFT) & CCSR_DMA_MR_BWC_MASK) 40 #define CCSR_DMA_MR_EMP_EN 0x00200000 41 #define CCSR_DMA_MR_EMS_EN 0x00040000 42 #define CCSR_DMA_MR_DAHTS_MASK 0x00030000 43 #define CCSR_DMA_MR_DAHTS_1 0x00000000 44 #define CCSR_DMA_MR_DAHTS_2 0x00010000 45 #define CCSR_DMA_MR_DAHTS_4 0x00020000 46 #define CCSR_DMA_MR_DAHTS_8 0x00030000 47 #define CCSR_DMA_MR_SAHTS_MASK 0x0000C000 48 #define CCSR_DMA_MR_SAHTS_1 0x00000000 49 #define CCSR_DMA_MR_SAHTS_2 0x00004000 50 #define CCSR_DMA_MR_SAHTS_4 0x00008000 51 #define CCSR_DMA_MR_SAHTS_8 0x0000C000 52 #define CCSR_DMA_MR_DAHE 0x00002000 53 #define CCSR_DMA_MR_SAHE 0x00001000 54 #define CCSR_DMA_MR_SRW 0x00000400 55 #define CCSR_DMA_MR_EOSIE 0x00000200 56 #define CCSR_DMA_MR_EOLNIE 0x00000100 57 #define CCSR_DMA_MR_EOLSIE 0x00000080 58 #define CCSR_DMA_MR_EIE 0x00000040 59 #define CCSR_DMA_MR_XFE 0x00000020 60 #define CCSR_DMA_MR_CDSM_SWSM 0x00000010 61 #define CCSR_DMA_MR_CA 0x00000008 62 #define CCSR_DMA_MR_CTM 0x00000004 63 #define CCSR_DMA_MR_CC 0x00000002 64 #define CCSR_DMA_MR_CS 0x00000001 65 66 #define CCSR_DMA_SR_TE 0x00000080 67 #define CCSR_DMA_SR_CH 0x00000020 68 #define CCSR_DMA_SR_PE 0x00000010 69 #define CCSR_DMA_SR_EOLNI 0x00000008 70 #define CCSR_DMA_SR_CB 0x00000004 71 #define CCSR_DMA_SR_EOSI 0x00000002 72 #define CCSR_DMA_SR_EOLSI 0x00000001 73 74 /* ECLNDAR takes bits 32-36 of the CLNDAR register */ CCSR_DMA_ECLNDAR_ADDR(u64 x)75static inline u32 CCSR_DMA_ECLNDAR_ADDR(u64 x) 76 { 77 return (x >> 32) & 0xf; 78 } 79 80 #define CCSR_DMA_CLNDAR_ADDR(x) ((x) & 0xFFFFFFFE) 81 #define CCSR_DMA_CLNDAR_EOSIE 0x00000008 82 83 /* SATR and DATR, combined */ 84 #define CCSR_DMA_ATR_PBATMU 0x20000000 85 #define CCSR_DMA_ATR_TFLOWLVL_0 0x00000000 86 #define CCSR_DMA_ATR_TFLOWLVL_1 0x06000000 87 #define CCSR_DMA_ATR_TFLOWLVL_2 0x08000000 88 #define CCSR_DMA_ATR_TFLOWLVL_3 0x0C000000 89 #define CCSR_DMA_ATR_PCIORDER 0x02000000 90 #define CCSR_DMA_ATR_SME 0x01000000 91 #define CCSR_DMA_ATR_NOSNOOP 0x00040000 92 #define CCSR_DMA_ATR_SNOOP 0x00050000 93 #define CCSR_DMA_ATR_ESAD_MASK 0x0000000F 94 95 /** 96 * List Descriptor for extended chaining mode DMA operations. 97 * 98 * The CLSDAR register points to the first (in a linked-list) List 99 * Descriptor. Each object must be aligned on a 32-byte boundary. Each 100 * list descriptor points to a linked-list of link Descriptors. 101 */ 102 struct fsl_dma_list_descriptor { 103 __be64 next; /* Address of next list descriptor */ 104 __be64 first_link; /* Address of first link descriptor */ 105 __be32 source; /* Source stride */ 106 __be32 dest; /* Destination stride */ 107 u8 res[8]; /* Reserved */ 108 } __attribute__ ((aligned(32), packed)); 109 110 /** 111 * Link Descriptor for basic and extended chaining mode DMA operations. 112 * 113 * A Link Descriptor points to a single DMA buffer. Each link descriptor 114 * must be aligned on a 32-byte boundary. 115 */ 116 struct fsl_dma_link_descriptor { 117 __be32 source_attr; /* Programmed into SATR register */ 118 __be32 source_addr; /* Programmed into SAR register */ 119 __be32 dest_attr; /* Programmed into DATR register */ 120 __be32 dest_addr; /* Programmed into DAR register */ 121 __be64 next; /* Address of next link descriptor */ 122 __be32 count; /* Byte count */ 123 u8 res[4]; /* Reserved */ 124 } __attribute__ ((aligned(32), packed)); 125 126 #endif 127