linux-vybrid_public/arch/arm/mach-ux500/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] = {
	/* MUSB - these will be runtime-reconfigured */
	[DB8500_DMA_DEV39_USB_OTG_OEP_8] = -1,
	[DB8500_DMA_DEV16_USB_OTG_OEP_7_15] = -1,
	[DB8500_DMA_DEV17_USB_OTG_OEP_6_14] = -1,
	[DB8500_DMA_DEV18_USB_OTG_OEP_5_13] = -1,
	[DB8500_DMA_DEV19_USB_OTG_OEP_4_12] = -1,
	[DB8500_DMA_DEV36_USB_OTG_OEP_3_11] = -1,
	[DB8500_DMA_DEV37_USB_OTG_OEP_2_10] = -1,
	[DB8500_DMA_DEV38_USB_OTG_OEP_1_9] = -1,
};

/* Mapping between source event lines and physical device address */
static const dma_addr_t dma40_rx_map[DB8500_DMA_NR_DEV] = {
	/* MUSB - these will be runtime-reconfigured */
	[DB8500_DMA_DEV39_USB_OTG_IEP_8] = -1,
	[DB8500_DMA_DEV16_USB_OTG_IEP_7_15] = -1,
	[DB8500_DMA_DEV17_USB_OTG_IEP_6_14] = -1,
	[DB8500_DMA_DEV18_USB_OTG_IEP_5_13] = -1,
	[DB8500_DMA_DEV19_USB_OTG_IEP_4_12] = -1,
	[DB8500_DMA_DEV36_USB_OTG_IEP_3_11] = -1,
	[DB8500_DMA_DEV37_USB_OTG_IEP_2_10] = -1,
	[DB8500_DMA_DEV38_USB_OTG_IEP_1_9] = -1,
};

/* 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,
};