arch/arm/mach-exynos4/dma.c

   1 /* linux/arch/arm/mach-exynos4/dma.c
   2  *
   3  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * Copyright (C) 2010 Samsung Electronics Co. Ltd.
   7  *      Jaswinder Singh <jassi.brar@samsung.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 #include <linux/platform_device.h>
  25 #include <linux/dma-mapping.h>
  26
  27 #include <plat/devs.h>
  28 #include <plat/irqs.h>
  29
  30 #include <mach/map.h>
  31 #include <mach/irqs.h>
  32
  33 #include <plat/s3c-pl330-pdata.h>
  34
  35 static u64 dma_dmamask = DMA_BIT_MASK(32);
  36
  37 static struct resource exynos4_pdma0_resource[] = {
  38         [0] = {
  39                 .start  = EXYNOS4_PA_PDMA0,
  40                 .end    = EXYNOS4_PA_PDMA0 + SZ_4K,
  41                 .flags  = IORESOURCE_MEM,
  42         },
  43         [1] = {
  44                 .start  = IRQ_PDMA0,
  45                 .end    = IRQ_PDMA0,
  46                 .flags  = IORESOURCE_IRQ,
  47         },
  48 };
  49
  50 static struct s3c_pl330_platdata exynos4_pdma0_pdata = {
  51         .peri = {
  52                 [0] = DMACH_PCM0_RX,
  53                 [1] = DMACH_PCM0_TX,
  54                 [2] = DMACH_PCM2_RX,
  55                 [3] = DMACH_PCM2_TX,
  56                 [4] = DMACH_MSM_REQ0,
  57                 [5] = DMACH_MSM_REQ2,
  58                 [6] = DMACH_SPI0_RX,
  59                 [7] = DMACH_SPI0_TX,
  60                 [8] = DMACH_SPI2_RX,
  61                 [9] = DMACH_SPI2_TX,
  62                 [10] = DMACH_I2S0S_TX,
  63                 [11] = DMACH_I2S0_RX,
  64                 [12] = DMACH_I2S0_TX,
  65                 [13] = DMACH_I2S2_RX,
  66                 [14] = DMACH_I2S2_TX,
  67                 [15] = DMACH_UART0_RX,
  68                 [16] = DMACH_UART0_TX,
  69                 [17] = DMACH_UART2_RX,
  70                 [18] = DMACH_UART2_TX,
  71                 [19] = DMACH_UART4_RX,
  72                 [20] = DMACH_UART4_TX,
  73                 [21] = DMACH_SLIMBUS0_RX,
  74                 [22] = DMACH_SLIMBUS0_TX,
  75                 [23] = DMACH_SLIMBUS2_RX,
  76                 [24] = DMACH_SLIMBUS2_TX,
  77                 [25] = DMACH_SLIMBUS4_RX,
  78                 [26] = DMACH_SLIMBUS4_TX,
  79                 [27] = DMACH_AC97_MICIN,
  80                 [28] = DMACH_AC97_PCMIN,
  81                 [29] = DMACH_AC97_PCMOUT,
  82                 [30] = DMACH_MAX,
  83                 [31] = DMACH_MAX,
  84         },
  85 };
  86
  87 static struct platform_device exynos4_device_pdma0 = {
  88         .name           = "s3c-pl330",
  89         .id             = 0,
  90         .num_resources  = ARRAY_SIZE(exynos4_pdma0_resource),
  91         .resource       = exynos4_pdma0_resource,
  92         .dev            = {
  93                 .dma_mask = &dma_dmamask,
  94                 .coherent_dma_mask = DMA_BIT_MASK(32),
  95                 .platform_data = &exynos4_pdma0_pdata,
  96         },
  97 };
  98
  99 static struct resource exynos4_pdma1_resource[] = {
 100         [0] = {
 101                 .start  = EXYNOS4_PA_PDMA1,
 102                 .end    = EXYNOS4_PA_PDMA1 + SZ_4K,
 103                 .flags  = IORESOURCE_MEM,
 104         },
 105         [1] = {
 106                 .start  = IRQ_PDMA1,
 107                 .end    = IRQ_PDMA1,
 108                 .flags  = IORESOURCE_IRQ,
 109         },
 110 };
 111
 112 static struct s3c_pl330_platdata exynos4_pdma1_pdata = {
 113         .peri = {
 114                 [0] = DMACH_PCM0_RX,
 115                 [1] = DMACH_PCM0_TX,
 116                 [2] = DMACH_PCM1_RX,
 117                 [3] = DMACH_PCM1_TX,
 118                 [4] = DMACH_MSM_REQ1,
 119                 [5] = DMACH_MSM_REQ3,
 120                 [6] = DMACH_SPI1_RX,
 121                 [7] = DMACH_SPI1_TX,
 122                 [8] = DMACH_I2S0S_TX,
 123                 [9] = DMACH_I2S0_RX,
 124                 [10] = DMACH_I2S0_TX,
 125                 [11] = DMACH_I2S1_RX,
 126                 [12] = DMACH_I2S1_TX,
 127                 [13] = DMACH_UART0_RX,
 128                 [14] = DMACH_UART0_TX,
 129                 [15] = DMACH_UART1_RX,
 130                 [16] = DMACH_UART1_TX,
 131                 [17] = DMACH_UART3_RX,
 132                 [18] = DMACH_UART3_TX,
 133                 [19] = DMACH_SLIMBUS1_RX,
 134                 [20] = DMACH_SLIMBUS1_TX,
 135                 [21] = DMACH_SLIMBUS3_RX,
 136                 [22] = DMACH_SLIMBUS3_TX,
 137                 [23] = DMACH_SLIMBUS5_RX,
 138                 [24] = DMACH_SLIMBUS5_TX,
 139                 [25] = DMACH_SLIMBUS0AUX_RX,
 140                 [26] = DMACH_SLIMBUS0AUX_TX,
 141                 [27] = DMACH_SPDIF,
 142                 [28] = DMACH_MAX,
 143                 [29] = DMACH_MAX,
 144                 [30] = DMACH_MAX,
 145                 [31] = DMACH_MAX,
 146         },
 147 };
 148
 149 static struct platform_device exynos4_device_pdma1 = {
 150         .name           = "s3c-pl330",
 151         .id             = 1,
 152         .num_resources  = ARRAY_SIZE(exynos4_pdma1_resource),
 153         .resource       = exynos4_pdma1_resource,
 154         .dev            = {
 155                 .dma_mask = &dma_dmamask,
 156                 .coherent_dma_mask = DMA_BIT_MASK(32),
 157                 .platform_data = &exynos4_pdma1_pdata,
 158         },
 159 };
 160
 161 static struct platform_device *exynos4_dmacs[] __initdata = {
 162         &exynos4_device_pdma0,
 163         &exynos4_device_pdma1,
 164 };
 165
 166 static int __init exynos4_dma_init(void)
 167 {
 168         platform_add_devices(exynos4_dmacs, ARRAY_SIZE(exynos4_dmacs));
 169
 170         return 0;
 171 }
 172 arch_initcall(exynos4_dma_init);