1 /* 2 * Renesas SuperH DMA Engine support for r8a73a4 (APE6) SoCs 3 * 4 * Copyright (C) 2013 Renesas Electronics, Inc. 5 * 6 * This is free software; you can redistribute it and/or modify it under the 7 * terms of version 2 the GNU General Public License as published by the Free 8 * Software Foundation. 9 */ 10 #include <linux/sh_dma.h> 11 12 #include "shdma-arm.h" 13 14 static const unsigned int dma_ts_shift[] = SH_DMAE_TS_SHIFT; 15 16 static const struct sh_dmae_slave_config dma_slaves[] = { 17 { 18 .chcr = CHCR_TX(XMIT_SZ_32BIT), 19 .mid_rid = 0xd1, /* MMC0 Tx */ 20 }, { 21 .chcr = CHCR_RX(XMIT_SZ_32BIT), 22 .mid_rid = 0xd2, /* MMC0 Rx */ 23 }, { 24 .chcr = CHCR_TX(XMIT_SZ_32BIT), 25 .mid_rid = 0xe1, /* MMC1 Tx */ 26 }, { 27 .chcr = CHCR_RX(XMIT_SZ_32BIT), 28 .mid_rid = 0xe2, /* MMC1 Rx */ 29 }, 30 }; 31 32 #define DMAE_CHANNEL(a, b) \ 33 { \ 34 .offset = (a) - 0x20, \ 35 .dmars = (a) - 0x20 + 0x40, \ 36 .chclr_bit = (b), \ 37 .chclr_offset = 0x80 - 0x20, \ 38 } 39 40 static const struct sh_dmae_channel dma_channels[] = { 41 DMAE_CHANNEL(0x8000, 0), 42 DMAE_CHANNEL(0x8080, 1), 43 DMAE_CHANNEL(0x8100, 2), 44 DMAE_CHANNEL(0x8180, 3), 45 DMAE_CHANNEL(0x8200, 4), 46 DMAE_CHANNEL(0x8280, 5), 47 DMAE_CHANNEL(0x8300, 6), 48 DMAE_CHANNEL(0x8380, 7), 49 DMAE_CHANNEL(0x8400, 8), 50 DMAE_CHANNEL(0x8480, 9), 51 DMAE_CHANNEL(0x8500, 10), 52 DMAE_CHANNEL(0x8580, 11), 53 DMAE_CHANNEL(0x8600, 12), 54 DMAE_CHANNEL(0x8680, 13), 55 DMAE_CHANNEL(0x8700, 14), 56 DMAE_CHANNEL(0x8780, 15), 57 DMAE_CHANNEL(0x8800, 16), 58 DMAE_CHANNEL(0x8880, 17), 59 DMAE_CHANNEL(0x8900, 18), 60 DMAE_CHANNEL(0x8980, 19), 61 }; 62 63 const struct sh_dmae_pdata r8a73a4_dma_pdata = { 64 .slave = dma_slaves, 65 .slave_num = ARRAY_SIZE(dma_slaves), 66 .channel = dma_channels, 67 .channel_num = ARRAY_SIZE(dma_channels), 68 .ts_low_shift = TS_LOW_SHIFT, 69 .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, 70 .ts_high_shift = TS_HI_SHIFT, 71 .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, 72 .ts_shift = dma_ts_shift, 73 .ts_shift_num = ARRAY_SIZE(dma_ts_shift), 74 .dmaor_init = DMAOR_DME, 75 .chclr_present = 1, 76 .chclr_bitwise = 1, 77 }; 78
