kernel_samsung_msm8974/arch/arm/mach-s5pc100/dma.c

/* linux/arch/arm/mach-s5pc100/dma.c
 *
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * 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/dma-mapping.h>
#include <linux/amba/bus.h>
#include <linux/amba/pl330.h>

#include <asm/irq.h>
#include <plat/devs.h>
#include <plat/irqs.h>

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

static u64 dma_dmamask = DMA_BIT_MASK(32);

static u8 pdma0_peri[] = {
	DMACH_UART0_RX,
	DMACH_UART0_TX,
	DMACH_UART1_RX,
	DMACH_UART1_TX,
	DMACH_UART2_RX,
	DMACH_UART2_TX,
	DMACH_UART3_RX,
	DMACH_UART3_TX,
	DMACH_IRDA,
	DMACH_I2S0_RX,
	DMACH_I2S0_TX,
	DMACH_I2S0S_TX,
	DMACH_I2S1_RX,
	DMACH_I2S1_TX,
	DMACH_I2S2_RX,
	DMACH_I2S2_TX,
	DMACH_SPI0_RX,
	DMACH_SPI0_TX,
	DMACH_SPI1_RX,
	DMACH_SPI1_TX,
	DMACH_SPI2_RX,
	DMACH_SPI2_TX,
	DMACH_AC97_MICIN,
	DMACH_AC97_PCMIN,
	DMACH_AC97_PCMOUT,
	DMACH_EXTERNAL,
	DMACH_PWM,
	DMACH_SPDIF,
	DMACH_HSI_RX,
	DMACH_HSI_TX,
};

static struct dma_pl330_platdata s5pc100_pdma0_pdata = {
	.nr_valid_peri = ARRAY_SIZE(pdma0_peri),
	.peri_id = pdma0_peri,
};

static AMBA_AHB_DEVICE(s5pc100_pdma0,  "dma-pl330.0", 0x00041330,
	S5PC100_PA_PDMA0, {IRQ_PDMA0}, &s5pc100_pdma0_pdata);

static u8 pdma1_peri[] = {
	DMACH_UART0_RX,
	DMACH_UART0_TX,
	DMACH_UART1_RX,
	DMACH_UART1_TX,
	DMACH_UART2_RX,
	DMACH_UART2_TX,
	DMACH_UART3_RX,
	DMACH_UART3_TX,
	DMACH_IRDA,
	DMACH_I2S0_RX,
	DMACH_I2S0_TX,
	DMACH_I2S0S_TX,
	DMACH_I2S1_RX,
	DMACH_I2S1_TX,
	DMACH_I2S2_RX,
	DMACH_I2S2_TX,
	DMACH_SPI0_RX,
	DMACH_SPI0_TX,
	DMACH_SPI1_RX,
	DMACH_SPI1_TX,
	DMACH_SPI2_RX,
	DMACH_SPI2_TX,
	DMACH_PCM0_RX,
	DMACH_PCM0_TX,
	DMACH_PCM1_RX,
	DMACH_PCM1_TX,
	DMACH_MSM_REQ0,
	DMACH_MSM_REQ1,
	DMACH_MSM_REQ2,
	DMACH_MSM_REQ3,
};

static struct dma_pl330_platdata s5pc100_pdma1_pdata = {
	.nr_valid_peri = ARRAY_SIZE(pdma1_peri),
	.peri_id = pdma1_peri,
};

static AMBA_AHB_DEVICE(s5pc100_pdma1, "dma-pl330.1", 0x00041330,
	S5PC100_PA_PDMA1, {IRQ_PDMA1}, &s5pc100_pdma1_pdata);

static int __init s5pc100_dma_init(void)
{
	dma_cap_set(DMA_SLAVE, s5pc100_pdma0_pdata.cap_mask);
	dma_cap_set(DMA_CYCLIC, s5pc100_pdma0_pdata.cap_mask);
	amba_device_register(&s5pc100_pdma0_device, &iomem_resource);

	dma_cap_set(DMA_SLAVE, s5pc100_pdma1_pdata.cap_mask);
	dma_cap_set(DMA_CYCLIC, s5pc100_pdma1_pdata.cap_mask);
	amba_device_register(&s5pc100_pdma1_device, &iomem_resource);

	return 0;
}
arch_initcall(s5pc100_dma_init);