[net-next-2.6.git] / arch / arm / mach-s5p64x0 / dma.c

/* linux/arch/arm/mach-s5p64x0/dma.c
 *
 * Copyright (c) 2010 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/platform_device.h>
#include <linux/dma-mapping.h>

#include <mach/map.h>
#include <mach/irqs.h>
#include <mach/regs-clock.h>

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

static u64 dma_dmamask = DMA_BIT_MASK(32);

static struct resource s5p64x0_pdma_resource[] = {
	[0] = {
		.start	= S5P64X0_PA_PDMA,
		.end	= S5P64X0_PA_PDMA + SZ_4K,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= IRQ_DMA0,
		.end	= IRQ_DMA0,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct s3c_pl330_platdata s5p6440_pdma_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_MAX,
		[9] = DMACH_MAX,
		[10] = DMACH_PCM0_TX,
		[11] = DMACH_PCM0_RX,
		[12] = DMACH_I2S0_TX,
		[13] = DMACH_I2S0_RX,
		[14] = DMACH_SPI0_TX,
		[15] = DMACH_SPI0_RX,
		[16] = DMACH_MAX,
		[17] = DMACH_MAX,
		[18] = DMACH_MAX,
		[19] = DMACH_MAX,
		[20] = DMACH_SPI1_TX,
		[21] = DMACH_SPI1_RX,
		[22] = DMACH_MAX,
		[23] = DMACH_MAX,
		[24] = DMACH_MAX,
		[25] = DMACH_MAX,
		[26] = DMACH_MAX,
		[27] = DMACH_MAX,
		[28] = DMACH_MAX,
		[29] = DMACH_PWM,
		[30] = DMACH_MAX,
		[31] = DMACH_MAX,
	},
};

static struct s3c_pl330_platdata s5p6450_pdma_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_UART4_RX,
		[9] = DMACH_UART4_TX,
		[10] = DMACH_PCM0_TX,
		[11] = DMACH_PCM0_RX,
		[12] = DMACH_I2S0_TX,
		[13] = DMACH_I2S0_RX,
		[14] = DMACH_SPI0_TX,
		[15] = DMACH_SPI0_RX,
		[16] = DMACH_PCM1_TX,
		[17] = DMACH_PCM1_RX,
		[18] = DMACH_PCM2_TX,
		[19] = DMACH_PCM2_RX,
		[20] = DMACH_SPI1_TX,
		[21] = DMACH_SPI1_RX,
		[22] = DMACH_USI_TX,
		[23] = DMACH_USI_RX,
		[24] = DMACH_MAX,
		[25] = DMACH_I2S1_TX,
		[26] = DMACH_I2S1_RX,
		[27] = DMACH_I2S2_TX,
		[28] = DMACH_I2S2_RX,
		[29] = DMACH_PWM,
		[30] = DMACH_UART5_RX,
		[31] = DMACH_UART5_TX,
	},
};

static struct platform_device s5p64x0_device_pdma = {
	.name		= "s3c-pl330",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(s5p64x0_pdma_resource),
	.resource	= s5p64x0_pdma_resource,
	.dev		= {
		.dma_mask = &dma_dmamask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
	},
};

static int __init s5p64x0_dma_init(void)
{
	unsigned int id;

	id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;

	if (id == 0x50000)
		s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
	else
		s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;

	platform_device_register(&s5p64x0_device_pdma);

	return 0;
}
arch_initcall(s5p64x0_dma_init);
Commit	Line	Data
f1fee582 KK	1	/* linux/arch/arm/mach-s5p64x0/dma.c
	2	*
	3	* Copyright (c) 2010 Samsung Electronics Co., Ltd.
	4	* http://www.samsung.com
	5	*
d8b5065b JB	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.
f1fee582	22	*/
d8b5065b JB	23
	24	#include <linux/platform_device.h>
	25	#include <linux/dma-mapping.h>
	26
d8b5065b JB	27	#include <mach/map.h>
d8b5065b JB	28	#include <mach/irqs.h>
f1fee582	29	#include <mach/regs-clock.h>
d8b5065b	30
f1fee582	31	#include <plat/devs.h>
d8b5065b JB	32	#include <plat/s3c-pl330-pdata.h>
	33
	34	static u64 dma_dmamask = DMA_BIT_MASK(32);
	35
f1fee582	36	static struct resource s5p64x0_pdma_resource[] = {
d8b5065b	37	[0] = {
f1fee582 KK	38	.start = S5P64X0_PA_PDMA,
	39	.end = S5P64X0_PA_PDMA + SZ_4K,
	40	.flags = IORESOURCE_MEM,
d8b5065b JB	41	},
	42	[1] = {
	43	.start = IRQ_DMA0,
	44	.end = IRQ_DMA0,
	45	.flags = IORESOURCE_IRQ,
	46	},
	47	};
	48
	49	static struct s3c_pl330_platdata s5p6440_pdma_pdata = {
	50	.peri = {
	51	[0] = DMACH_UART0_RX,
	52	[1] = DMACH_UART0_TX,
	53	[2] = DMACH_UART1_RX,
	54	[3] = DMACH_UART1_TX,
	55	[4] = DMACH_UART2_RX,
	56	[5] = DMACH_UART2_TX,
	57	[6] = DMACH_UART3_RX,
	58	[7] = DMACH_UART3_TX,
	59	[8] = DMACH_MAX,
	60	[9] = DMACH_MAX,
	61	[10] = DMACH_PCM0_TX,
	62	[11] = DMACH_PCM0_RX,
	63	[12] = DMACH_I2S0_TX,
	64	[13] = DMACH_I2S0_RX,
	65	[14] = DMACH_SPI0_TX,
	66	[15] = DMACH_SPI0_RX,
	67	[16] = DMACH_MAX,
	68	[17] = DMACH_MAX,
	69	[18] = DMACH_MAX,
	70	[19] = DMACH_MAX,
	71	[20] = DMACH_SPI1_TX,
	72	[21] = DMACH_SPI1_RX,
	73	[22] = DMACH_MAX,
	74	[23] = DMACH_MAX,
	75	[24] = DMACH_MAX,
	76	[25] = DMACH_MAX,
	77	[26] = DMACH_MAX,
	78	[27] = DMACH_MAX,
	79	[28] = DMACH_MAX,
	80	[29] = DMACH_PWM,
	81	[30] = DMACH_MAX,
	82	[31] = DMACH_MAX,
	83	},
	84	};
	85
f1fee582 KK	86	static struct s3c_pl330_platdata s5p6450_pdma_pdata = {
	87	.peri = {
	88	[0] = DMACH_UART0_RX,
	89	[1] = DMACH_UART0_TX,
	90	[2] = DMACH_UART1_RX,
	91	[3] = DMACH_UART1_TX,
	92	[4] = DMACH_UART2_RX,
	93	[5] = DMACH_UART2_TX,
	94	[6] = DMACH_UART3_RX,
	95	[7] = DMACH_UART3_TX,
	96	[8] = DMACH_UART4_RX,
	97	[9] = DMACH_UART4_TX,
	98	[10] = DMACH_PCM0_TX,
	99	[11] = DMACH_PCM0_RX,
	100	[12] = DMACH_I2S0_TX,
	101	[13] = DMACH_I2S0_RX,
	102	[14] = DMACH_SPI0_TX,
	103	[15] = DMACH_SPI0_RX,
	104	[16] = DMACH_PCM1_TX,
	105	[17] = DMACH_PCM1_RX,
	106	[18] = DMACH_PCM2_TX,
	107	[19] = DMACH_PCM2_RX,
	108	[20] = DMACH_SPI1_TX,
	109	[21] = DMACH_SPI1_RX,
	110	[22] = DMACH_USI_TX,
	111	[23] = DMACH_USI_RX,
	112	[24] = DMACH_MAX,
	113	[25] = DMACH_I2S1_TX,
	114	[26] = DMACH_I2S1_RX,
	115	[27] = DMACH_I2S2_TX,
	116	[28] = DMACH_I2S2_RX,
	117	[29] = DMACH_PWM,
	118	[30] = DMACH_UART5_RX,
	119	[31] = DMACH_UART5_TX,
	120	},
	121	};
	122
	123	static struct platform_device s5p64x0_device_pdma = {
d8b5065b	124	.name = "s3c-pl330",
9d59c17a	125	.id = -1,
f1fee582 KK	126	.num_resources = ARRAY_SIZE(s5p64x0_pdma_resource),
f1fee582 KK	127	.resource = s5p64x0_pdma_resource,
d8b5065b JB	128	.dev = {
	129	.dma_mask = &dma_dmamask,
	130	.coherent_dma_mask = DMA_BIT_MASK(32),
d8b5065b JB	131	},
	132	};
	133
f1fee582	134	static int __init s5p64x0_dma_init(void)
d8b5065b	135	{
f1fee582 KK	136	unsigned int id;
	137
	138	id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
	139
	140	if (id == 0x50000)
	141	s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
	142	else
	143	s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;
	144
	145	platform_device_register(&s5p64x0_device_pdma);
d8b5065b JB	146
	147	return 0;
	148	}
f1fee582	149	arch_initcall(s5p64x0_dma_init);