| Guennadi Liakhovetski | 1e69653 | 2013-08-02 16:50:39 +0200 | [diff] [blame] | 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 | |
| Geert Uytterhoeven | 8f64b27 | 2015-05-21 13:58:30 +0200 | [diff] [blame] | 14 | static const unsigned int dma_ts_shift[] = SH_DMAE_TS_SHIFT; |
| Guennadi Liakhovetski | 1e69653 | 2013-08-02 16:50:39 +0200 | [diff] [blame] | 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 | }; |