From d460f5b035c3b1d192d7ba1dbca50cb441fef08e Mon Sep 17 00:00:00 2001 From: Jassi Brar Date: Tue, 18 May 2010 11:59:27 +0900 Subject: S5P6442: DMA: Add platform devices for PL330 DMACs 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 Signed-off-by: Ben Dooks --- arch/arm/mach-s5p6442/dma.c | 105 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 arch/arm/mach-s5p6442/dma.c (limited to 'arch/arm/mach-s5p6442/dma.c') diff --git a/arch/arm/mach-s5p6442/dma.c b/arch/arm/mach-s5p6442/dma.c new file mode 100644 index 000000000000..ad4f8704b93d --- /dev/null +++ b/arch/arm/mach-s5p6442/dma.c @@ -0,0 +1,105 @@ +/* + * Copyright (C) 2010 Samsung Electronics Co. Ltd. + * Jaswinder Singh + * + * 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 +#include + +#include +#include + +#include +#include + +#include + +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); -- cgit v1.2.1