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devices-db8500.c

/*
 * Copyright (C) ST-Ericsson SA 2010
 *
 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
 * License terms: GNU General Public License (GPL) version 2
 */

#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/amba/bus.h>

#include <plat/ste_dma40.h>

#include <mach/hardware.h>
#include <mach/setup.h>

#include "ste-dma40-db8500.h"

static struct resource dma40_resources[] = {
      [0] = {
            .start = U8500_DMA_BASE,
            .end   = U8500_DMA_BASE + SZ_4K - 1,
            .flags = IORESOURCE_MEM,
            .name  = "base",
      },
      [1] = {
            .start = U8500_DMA_LCPA_BASE,
            .end   = U8500_DMA_LCPA_BASE + 2 * SZ_1K - 1,
            .flags = IORESOURCE_MEM,
            .name  = "lcpa",
      },
      [2] = {
            .start = IRQ_DB8500_DMA,
            .end   = IRQ_DB8500_DMA,
            .flags = IORESOURCE_IRQ,
      }
};

/* Default configuration for physcial memcpy */
struct stedma40_chan_cfg dma40_memcpy_conf_phy = {
      .mode = STEDMA40_MODE_PHYSICAL,
      .dir = STEDMA40_MEM_TO_MEM,

      .src_info.data_width = STEDMA40_BYTE_WIDTH,
      .src_info.psize = STEDMA40_PSIZE_PHY_1,
      .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,

      .dst_info.data_width = STEDMA40_BYTE_WIDTH,
      .dst_info.psize = STEDMA40_PSIZE_PHY_1,
      .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
};
/* Default configuration for logical memcpy */
struct stedma40_chan_cfg dma40_memcpy_conf_log = {
      .dir = STEDMA40_MEM_TO_MEM,

      .src_info.data_width = STEDMA40_BYTE_WIDTH,
      .src_info.psize = STEDMA40_PSIZE_LOG_1,
      .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,

      .dst_info.data_width = STEDMA40_BYTE_WIDTH,
      .dst_info.psize = STEDMA40_PSIZE_LOG_1,
      .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
};

/*
 * Mapping between destination event lines and physical device address.
 * The event line is tied to a device and therefor the address is constant.
 */
static const dma_addr_t dma40_tx_map[DB8500_DMA_NR_DEV];

/* Mapping between source event lines and physical device address */
static const dma_addr_t dma40_rx_map[DB8500_DMA_NR_DEV];

/* Reserved event lines for memcpy only */
static int dma40_memcpy_event[] = {
      DB8500_DMA_MEMCPY_TX_0,
      DB8500_DMA_MEMCPY_TX_1,
      DB8500_DMA_MEMCPY_TX_2,
      DB8500_DMA_MEMCPY_TX_3,
      DB8500_DMA_MEMCPY_TX_4,
      DB8500_DMA_MEMCPY_TX_5,
};

static struct stedma40_platform_data dma40_plat_data = {
      .dev_len = DB8500_DMA_NR_DEV,
      .dev_rx = dma40_rx_map,
      .dev_tx = dma40_tx_map,
      .memcpy = dma40_memcpy_event,
      .memcpy_len = ARRAY_SIZE(dma40_memcpy_event),
      .memcpy_conf_phy = &dma40_memcpy_conf_phy,
      .memcpy_conf_log = &dma40_memcpy_conf_log,
      .disabled_channels = {-1},
};

struct platform_device u8500_dma40_device = {
      .dev = {
            .platform_data = &dma40_plat_data,
      },
      .name = "dma40",
      .id = 0,
      .num_resources = ARRAY_SIZE(dma40_resources),
      .resource = dma40_resources
};

void dma40_u8500ed_fixup(void)
{
      dma40_plat_data.memcpy = NULL;
      dma40_plat_data.memcpy_len = 0;
      dma40_resources[0].start = U8500_DMA_BASE_ED;
      dma40_resources[0].end = U8500_DMA_BASE_ED + SZ_4K - 1;
      dma40_resources[1].start = U8500_DMA_LCPA_BASE_ED;
      dma40_resources[1].end = U8500_DMA_LCPA_BASE_ED + 2 * SZ_1K - 1;
}

struct resource keypad_resources[] = {
      [0] = {
            .start = U8500_SKE_BASE,
            .end = U8500_SKE_BASE + SZ_4K - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_DB8500_KB,
            .end = IRQ_DB8500_KB,
            .flags = IORESOURCE_IRQ,
      },
};

struct platform_device u8500_ske_keypad_device = {
      .name = "nmk-ske-keypad",
      .id = -1,
      .num_resources = ARRAY_SIZE(keypad_resources),
      .resource = keypad_resources,
};

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