arch/arm/mach-s5pv210/dma.c

   1 /*
   2  * Copyright (C) 2010 Samsung Electronics Co. Ltd.
   3  *      Jaswinder Singh <jassi.brar@samsung.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 #include <linux/platform_device.h>
  21 #include <linux/dma-mapping.h>
  22
  23 #include <plat/devs.h>
  24 #include <plat/irqs.h>
  25
  26 #include <mach/map.h>
  27 #include <mach/irqs.h>
  28
  29 #include <plat/s3c-pl330-pdata.h>
  30
  31 static u64 dma_dmamask = DMA_BIT_MASK(32);
  32
  33 static struct resource s5pv210_mdma_resource[] = {
  34         [0] = {
  35                 .start  = S5PV210_PA_MDMA,
  36                 .end    = S5PV210_PA_MDMA + SZ_4K,
  37                 .flags  = IORESOURCE_MEM,
  38         },
  39         [1] = {
  40                 .start  = IRQ_MDMA,
  41                 .end    = IRQ_MDMA,
  42                 .flags  = IORESOURCE_IRQ,
  43         },
  44 };
  45
  46 static struct s3c_pl330_platdata s5pv210_mdma_pdata = {
  47         .peri = {
  48                 /* The DMAC can have max 8 channel so there
  49                  * can be 8 M<->M requests served at any time.
  50                  */
  51                 [0] = DMACH_MTOM_0,
  52                 [1] = DMACH_MTOM_1,
  53                 [2] = DMACH_MTOM_2,
  54                 [3] = DMACH_MTOM_3,
  55                 [4] = DMACH_MTOM_4,
  56                 [5] = DMACH_MTOM_5,
  57                 [6] = DMACH_MTOM_6,
  58                 [7] = DMACH_MTOM_7,
  59                 [8] = DMACH_MAX,
  60                 [9] = DMACH_MAX,
  61                 [10] = DMACH_MAX,
  62                 [11] = DMACH_MAX,
  63                 [12] = DMACH_MAX,
  64                 [13] = DMACH_MAX,
  65                 [14] = DMACH_MAX,
  66                 [15] = DMACH_MAX,
  67                 [16] = DMACH_MAX,
  68                 [17] = DMACH_MAX,
  69                 [18] = DMACH_MAX,
  70                 [19] = DMACH_MAX,
  71                 [20] = DMACH_MAX,
  72                 [21] = DMACH_MAX,
  73                 [22] = DMACH_MAX,
  74                 [23] = DMACH_MAX,
  75                 [24] = DMACH_MAX,
  76                 [25] = DMACH_MAX,
  77                 [26] = DMACH_MAX,
  78                 [27] = DMACH_MAX,
  79                 [28] = DMACH_MAX,
  80                 [29] = DMACH_MAX,
  81                 [30] = DMACH_MAX,
  82                 [31] = DMACH_MAX,
  83         },
  84 };
  85
  86 struct platform_device s5pv210_device_mdma = {
  87         .name           = "s3c-pl330",
  88         .id             = 0,
  89         .num_resources  = ARRAY_SIZE(s5pv210_mdma_resource),
  90         .resource       = s5pv210_mdma_resource,
  91         .dev            = {
  92                 .dma_mask = &dma_dmamask,
  93                 .coherent_dma_mask = DMA_BIT_MASK(32),
  94                 .platform_data = &s5pv210_mdma_pdata,
  95         },
  96 };
  97
  98 static struct resource s5pv210_pdma0_resource[] = {
  99         [0] = {
 100                 .start  = S5PV210_PA_PDMA0,
 101                 .end    = S5PV210_PA_PDMA0 + SZ_4K,
 102                 .flags = IORESOURCE_MEM,
 103         },
 104         [1] = {
 105                 .start  = IRQ_PDMA0,
 106                 .end    = IRQ_PDMA0,
 107                 .flags  = IORESOURCE_IRQ,
 108         },
 109 };
 110
 111 static struct s3c_pl330_platdata s5pv210_pdma0_pdata = {
 112         .peri = {
 113                 [0] = DMACH_UART0_RX,
 114                 [1] = DMACH_UART0_TX,
 115                 [2] = DMACH_UART1_RX,
 116                 [3] = DMACH_UART1_TX,
 117                 [4] = DMACH_UART2_RX,
 118                 [5] = DMACH_UART2_TX,
 119                 [6] = DMACH_UART3_RX,
 120                 [7] = DMACH_UART3_TX,
 121                 [8] = DMACH_MAX,
 122                 [9] = DMACH_I2S0_RX,
 123                 [10] = DMACH_I2S0_TX,
 124                 [11] = DMACH_I2S0S_TX,
 125                 [12] = DMACH_I2S1_RX,
 126                 [13] = DMACH_I2S1_TX,
 127                 [14] = DMACH_MAX,
 128                 [15] = DMACH_MAX,
 129                 [16] = DMACH_SPI0_RX,
 130                 [17] = DMACH_SPI0_TX,
 131                 [18] = DMACH_SPI1_RX,
 132                 [19] = DMACH_SPI1_TX,
 133                 [20] = DMACH_MAX,
 134                 [21] = DMACH_MAX,
 135                 [22] = DMACH_AC97_MICIN,
 136                 [23] = DMACH_AC97_PCMIN,
 137                 [24] = DMACH_AC97_PCMOUT,
 138                 [25] = DMACH_MAX,
 139                 [26] = DMACH_PWM,
 140                 [27] = DMACH_SPDIF,
 141                 [28] = DMACH_MAX,
 142                 [29] = DMACH_MAX,
 143                 [30] = DMACH_MAX,
 144                 [31] = DMACH_MAX,
 145         },
 146 };
 147
 148 static struct platform_device s5pv210_device_pdma0 = {
 149         .name           = "s3c-pl330",
 150         .id             = 1,
 151         .num_resources  = ARRAY_SIZE(s5pv210_pdma0_resource),
 152         .resource       = s5pv210_pdma0_resource,
 153         .dev            = {
 154                 .dma_mask = &dma_dmamask,
 155                 .coherent_dma_mask = DMA_BIT_MASK(32),
 156                 .platform_data = &s5pv210_pdma0_pdata,
 157         },
 158 };
 159
 160 static struct resource s5pv210_pdma1_resource[] = {
 161         [0] = {
 162                 .start  = S5PV210_PA_PDMA1,
 163                 .end    = S5PV210_PA_PDMA1 + SZ_4K,
 164                 .flags = IORESOURCE_MEM,
 165         },
 166         [1] = {
 167                 .start  = IRQ_PDMA1,
 168                 .end    = IRQ_PDMA1,
 169                 .flags  = IORESOURCE_IRQ,
 170         },
 171 };
 172
 173 static struct s3c_pl330_platdata s5pv210_pdma1_pdata = {
 174         .peri = {
 175                 [0] = DMACH_UART0_RX,
 176                 [1] = DMACH_UART0_TX,
 177                 [2] = DMACH_UART1_RX,
 178                 [3] = DMACH_UART1_TX,
 179                 [4] = DMACH_UART2_RX,
 180                 [5] = DMACH_UART2_TX,
 181                 [6] = DMACH_UART3_RX,
 182                 [7] = DMACH_UART3_TX,
 183                 [8] = DMACH_MAX,
 184                 [9] = DMACH_I2S0_RX,
 185                 [10] = DMACH_I2S0_TX,
 186                 [11] = DMACH_I2S0S_TX,
 187                 [12] = DMACH_I2S1_RX,
 188                 [13] = DMACH_I2S1_TX,
 189                 [14] = DMACH_I2S2_RX,
 190                 [15] = DMACH_I2S2_TX,
 191                 [16] = DMACH_SPI0_RX,
 192                 [17] = DMACH_SPI0_TX,
 193                 [18] = DMACH_SPI1_RX,
 194                 [19] = DMACH_SPI1_TX,
 195                 [20] = DMACH_MAX,
 196                 [21] = DMACH_MAX,
 197                 [22] = DMACH_PCM0_RX,
 198                 [23] = DMACH_PCM0_TX,
 199                 [24] = DMACH_PCM1_RX,
 200                 [25] = DMACH_PCM1_TX,
 201                 [26] = DMACH_MSM_REQ0,
 202                 [27] = DMACH_MSM_REQ1,
 203                 [28] = DMACH_MSM_REQ2,
 204                 [29] = DMACH_MSM_REQ3,
 205                 [30] = DMACH_PCM2_RX,
 206                 [31] = DMACH_PCM2_TX,
 207         },
 208 };
 209
 210 static struct platform_device s5pv210_device_pdma1 = {
 211         .name           = "s3c-pl330",
 212         .id             = 2,
 213         .num_resources  = ARRAY_SIZE(s5pv210_pdma1_resource),
 214         .resource       = s5pv210_pdma1_resource,
 215         .dev            = {
 216                 .dma_mask = &dma_dmamask,
 217                 .coherent_dma_mask = DMA_BIT_MASK(32),
 218                 .platform_data = &s5pv210_pdma1_pdata,
 219         },
 220 };
 221
 222 static struct platform_device *s5pv210_dmacs[] __initdata = {
 223         &s5pv210_device_mdma,
 224         &s5pv210_device_pdma0,
 225         &s5pv210_device_pdma1,
 226 };
 227
 228 static int __init s5pv210_dma_init(void)
 229 {
 230         platform_add_devices(s5pv210_dmacs, ARRAY_SIZE(s5pv210_dmacs));
 231
 232         return 0;
 233 }
 234 arch_initcall(s5pv210_dma_init);