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dma.c

/*
 * Copyright (C) 2010 Samsung Electronics Co. Ltd.
 *    Jaswinder Singh <jassi.brar@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/platform_device.h>
#include <linux/dma-mapping.h>

#include <plat/devs.h>

#include <mach/map.h>
#include <mach/irqs.h>

#include <plat/s3c-pl330-pdata.h>

static u64 dma_dmamask = DMA_BIT_MASK(32);

static struct resource s5pc100_pdma0_resource[] = {
      [0] = {
            .start  = S5PC100_PA_PDMA0,
            .end    = S5PC100_PA_PDMA0 + SZ_4K,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start      = IRQ_PDMA0,
            .end  = IRQ_PDMA0,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct s3c_pl330_platdata s5pc100_pdma0_pdata = {
      .peri = {
            [0] = DMACH_UART0_RX,
            [1] = DMACH_UART0_TX,
            [2] = DMACH_UART1_RX,
            [3] = DMACH_UART1_TX,
            [4] = DMACH_UART2_RX,
            [5] = DMACH_UART2_TX,
            [6] = DMACH_UART3_RX,
            [7] = DMACH_UART3_TX,
            [8] = DMACH_IRDA,
            [9] = DMACH_I2S0_RX,
            [10] = DMACH_I2S0_TX,
            [11] = DMACH_I2S0S_TX,
            [12] = DMACH_I2S1_RX,
            [13] = DMACH_I2S1_TX,
            [14] = DMACH_I2S2_RX,
            [15] = DMACH_I2S2_TX,
            [16] = DMACH_SPI0_RX,
            [17] = DMACH_SPI0_TX,
            [18] = DMACH_SPI1_RX,
            [19] = DMACH_SPI1_TX,
            [20] = DMACH_SPI2_RX,
            [21] = DMACH_SPI2_TX,
            [22] = DMACH_AC97_MICIN,
            [23] = DMACH_AC97_PCMIN,
            [24] = DMACH_AC97_PCMOUT,
            [25] = DMACH_EXTERNAL,
            [26] = DMACH_PWM,
            [27] = DMACH_SPDIF,
            [28] = DMACH_HSI_RX,
            [29] = DMACH_HSI_TX,
            [30] = DMACH_MAX,
            [31] = DMACH_MAX,
      },
};

static struct platform_device s5pc100_device_pdma0 = {
      .name       = "s3c-pl330",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(s5pc100_pdma0_resource),
      .resource   = s5pc100_pdma0_resource,
      .dev        = {
            .dma_mask = &dma_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
            .platform_data = &s5pc100_pdma0_pdata,
      },
};

static struct resource s5pc100_pdma1_resource[] = {
      [0] = {
            .start  = S5PC100_PA_PDMA1,
            .end    = S5PC100_PA_PDMA1 + SZ_4K,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start      = IRQ_PDMA1,
            .end  = IRQ_PDMA1,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct s3c_pl330_platdata s5pc100_pdma1_pdata = {
      .peri = {
            [0] = DMACH_UART0_RX,
            [1] = DMACH_UART0_TX,
            [2] = DMACH_UART1_RX,
            [3] = DMACH_UART1_TX,
            [4] = DMACH_UART2_RX,
            [5] = DMACH_UART2_TX,
            [6] = DMACH_UART3_RX,
            [7] = DMACH_UART3_TX,
            [8] = DMACH_IRDA,
            [9] = DMACH_I2S0_RX,
            [10] = DMACH_I2S0_TX,
            [11] = DMACH_I2S0S_TX,
            [12] = DMACH_I2S1_RX,
            [13] = DMACH_I2S1_TX,
            [14] = DMACH_I2S2_RX,
            [15] = DMACH_I2S2_TX,
            [16] = DMACH_SPI0_RX,
            [17] = DMACH_SPI0_TX,
            [18] = DMACH_SPI1_RX,
            [19] = DMACH_SPI1_TX,
            [20] = DMACH_SPI2_RX,
            [21] = DMACH_SPI2_TX,
            [22] = DMACH_PCM0_RX,
            [23] = DMACH_PCM0_TX,
            [24] = DMACH_PCM1_RX,
            [25] = DMACH_PCM1_TX,
            [26] = DMACH_MSM_REQ0,
            [27] = DMACH_MSM_REQ1,
            [28] = DMACH_MSM_REQ2,
            [29] = DMACH_MSM_REQ3,
            [30] = DMACH_MAX,
            [31] = DMACH_MAX,
      },
};

static struct platform_device s5pc100_device_pdma1 = {
      .name       = "s3c-pl330",
      .id         = 1,
      .num_resources    = ARRAY_SIZE(s5pc100_pdma1_resource),
      .resource   = s5pc100_pdma1_resource,
      .dev        = {
            .dma_mask = &dma_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
            .platform_data = &s5pc100_pdma1_pdata,
      },
};

static struct platform_device *s5pc100_dmacs[] __initdata = {
      &s5pc100_device_pdma0,
      &s5pc100_device_pdma1,
};

static int __init s5pc100_dma_init(void)
{
      platform_add_devices(s5pc100_dmacs, ARRAY_SIZE(s5pc100_dmacs));

      return 0;
}
arch_initcall(s5pc100_dma_init);

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