d460f5b035
Samsung's Soc S5P6442 has two PL330 DMACs. First is dedicated for Memory->Memory data transfer while the second is meant for data transfer with peripherals. Define and add the peripheral PL330 DMAC as platform device on the S5P6442 platform. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
106 lines
2.6 KiB
C
106 lines
2.6 KiB
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 <plat/irqs.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 s5p6442_pdma_resource[] = {
|
|
[0] = {
|
|
.start = S5P6442_PA_PDMA,
|
|
.end = S5P6442_PA_PDMA + SZ_4K,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = IRQ_PDMA,
|
|
.end = IRQ_PDMA,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct s3c_pl330_platdata s5p6442_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_MAX,
|
|
[7] = DMACH_MAX,
|
|
[8] = DMACH_MAX,
|
|
[9] = DMACH_I2S0_RX,
|
|
[10] = DMACH_I2S0_TX,
|
|
[11] = DMACH_I2S0S_TX,
|
|
[12] = DMACH_I2S1_RX,
|
|
[13] = DMACH_I2S1_TX,
|
|
[14] = DMACH_MAX,
|
|
[15] = DMACH_MAX,
|
|
[16] = DMACH_SPI0_RX,
|
|
[17] = DMACH_SPI0_TX,
|
|
[18] = DMACH_MAX,
|
|
[19] = DMACH_MAX,
|
|
[20] = DMACH_PCM0_RX,
|
|
[21] = DMACH_PCM0_TX,
|
|
[22] = DMACH_PCM1_RX,
|
|
[23] = DMACH_PCM1_TX,
|
|
[24] = DMACH_MAX,
|
|
[25] = DMACH_MAX,
|
|
[26] = DMACH_MAX,
|
|
[27] = DMACH_MSM_REQ0,
|
|
[28] = DMACH_MSM_REQ1,
|
|
[29] = DMACH_MSM_REQ2,
|
|
[30] = DMACH_MSM_REQ3,
|
|
[31] = DMACH_MAX,
|
|
},
|
|
};
|
|
|
|
static struct platform_device s5p6442_device_pdma = {
|
|
.name = "s3c-pl330",
|
|
.id = 1,
|
|
.num_resources = ARRAY_SIZE(s5p6442_pdma_resource),
|
|
.resource = s5p6442_pdma_resource,
|
|
.dev = {
|
|
.dma_mask = &dma_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &s5p6442_pdma_pdata,
|
|
},
|
|
};
|
|
|
|
static struct platform_device *s5p6442_dmacs[] __initdata = {
|
|
&s5p6442_device_pdma,
|
|
};
|
|
|
|
static int __init s5p6442_dma_init(void)
|
|
{
|
|
platform_add_devices(s5p6442_dmacs, ARRAY_SIZE(s5p6442_dmacs));
|
|
|
|
return 0;
|
|
}
|
|
arch_initcall(s5p6442_dma_init);
|