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author | Jassi Brar <jassi.brar@samsung.com> | 2010-05-18 11:59:13 +0900 |
---|---|---|
committer | Ben Dooks <ben-linux@fluff.org> | 2010-05-23 16:26:56 +0100 |
commit | c5e2caca6a0732108bec146844551767cfbc115c (patch) | |
tree | 36f2a71cd9fdccbd179b3957992e748a167ee608 | |
parent | b69a596afe1d46f24f97fe69f67370cdfa9d5329 (diff) | |
download | linux-3.10-c5e2caca6a0732108bec146844551767cfbc115c.tar.gz linux-3.10-c5e2caca6a0732108bec146844551767cfbc115c.tar.bz2 linux-3.10-c5e2caca6a0732108bec146844551767cfbc115c.zip |
ARM: S5PC100: DMA: Add platform devices for PL330 DMACs
Samsung's Soc S5PC100 has three PL330 DMACs. First is dedicated for
Memory->Memory data transfer while the other two meant for data
transfer with peripherals.
Define and add latter two PL330 DMACs as platform devices on the
S5PC100 platform.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
-rw-r--r-- | arch/arm/mach-s5pc100/Kconfig | 1 | ||||
-rw-r--r-- | arch/arm/mach-s5pc100/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-s5pc100/dma.c | 167 | ||||
-rw-r--r-- | arch/arm/mach-s5pc100/include/mach/dma.h | 26 |
4 files changed, 195 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig index 2eb949771db..b2a11dfa339 100644 --- a/arch/arm/mach-s5pc100/Kconfig +++ b/arch/arm/mach-s5pc100/Kconfig @@ -11,6 +11,7 @@ config CPU_S5PC100 bool select PLAT_S5P select S5P_EXT_INT + select S3C_PL330_DMA help Enable S5PC100 CPU support diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile index e1081a9b19c..543f3de5131 100644 --- a/arch/arm/mach-s5pc100/Makefile +++ b/arch/arm/mach-s5pc100/Makefile @@ -13,6 +13,7 @@ obj- := obj-$(CONFIG_CPU_S5PC100) += cpu.o init.o clock.o gpiolib.o irq-gpio.o obj-$(CONFIG_CPU_S5PC100) += setup-i2c0.o +obj-$(CONFIG_CPU_S5PC100) += dma.o # Helper and device support diff --git a/arch/arm/mach-s5pc100/dma.c b/arch/arm/mach-s5pc100/dma.c new file mode 100644 index 00000000000..8e7af46bba0 --- /dev/null +++ b/arch/arm/mach-s5pc100/dma.c @@ -0,0 +1,167 @@ +/* + * 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 <plat/s3c-pl330-pdata.h> + +static u64 dma_dmamask = DMA_BIT_MASK(32); + +static struct resource s5pc100_pdma0_resource[] = { + [0] = { + .start = S5PC100_PA_PDMA0, + .end = S5PC100_PA_PDMA0 + SZ_4K, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_PDMA0, + .end = IRQ_PDMA0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct s3c_pl330_platdata s5pc100_pdma0_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_IRDA, + [9] = DMACH_I2S0_RX, + [10] = DMACH_I2S0_TX, + [11] = DMACH_I2S0S_TX, + [12] = DMACH_I2S1_RX, + [13] = DMACH_I2S1_TX, + [14] = DMACH_I2S2_RX, + [15] = DMACH_I2S2_TX, + [16] = DMACH_SPI0_RX, + [17] = DMACH_SPI0_TX, + [18] = DMACH_SPI1_RX, + [19] = DMACH_SPI1_TX, + [20] = DMACH_SPI2_RX, + [21] = DMACH_SPI2_TX, + [22] = DMACH_AC97_MICIN, + [23] = DMACH_AC97_PCMIN, + [24] = DMACH_AC97_PCMOUT, + [25] = DMACH_EXTERNAL, + [26] = DMACH_PWM, + [27] = DMACH_SPDIF, + [28] = DMACH_HSI_RX, + [29] = DMACH_HSI_TX, + [30] = DMACH_MAX, + [31] = DMACH_MAX, + }, +}; + +static struct platform_device s5pc100_device_pdma0 = { + .name = "s3c-pl330", + .id = 1, + .num_resources = ARRAY_SIZE(s5pc100_pdma0_resource), + .resource = s5pc100_pdma0_resource, + .dev = { + .dma_mask = &dma_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s5pc100_pdma0_pdata, + }, +}; + +static struct resource s5pc100_pdma1_resource[] = { + [0] = { + .start = S5PC100_PA_PDMA1, + .end = S5PC100_PA_PDMA1 + SZ_4K, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_PDMA1, + .end = IRQ_PDMA1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct s3c_pl330_platdata s5pc100_pdma1_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_IRDA, + [9] = DMACH_I2S0_RX, + [10] = DMACH_I2S0_TX, + [11] = DMACH_I2S0S_TX, + [12] = DMACH_I2S1_RX, + [13] = DMACH_I2S1_TX, + [14] = DMACH_I2S2_RX, + [15] = DMACH_I2S2_TX, + [16] = DMACH_SPI0_RX, + [17] = DMACH_SPI0_TX, + [18] = DMACH_SPI1_RX, + [19] = DMACH_SPI1_TX, + [20] = DMACH_SPI2_RX, + [21] = DMACH_SPI2_TX, + [22] = DMACH_PCM0_RX, + [23] = DMACH_PCM0_TX, + [24] = DMACH_PCM1_RX, + [25] = DMACH_PCM1_TX, + [26] = DMACH_MSM_REQ0, + [27] = DMACH_MSM_REQ1, + [28] = DMACH_MSM_REQ2, + [29] = DMACH_MSM_REQ3, + [30] = DMACH_MAX, + [31] = DMACH_MAX, + }, +}; + +static struct platform_device s5pc100_device_pdma1 = { + .name = "s3c-pl330", + .id = 2, + .num_resources = ARRAY_SIZE(s5pc100_pdma1_resource), + .resource = s5pc100_pdma1_resource, + .dev = { + .dma_mask = &dma_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s5pc100_pdma1_pdata, + }, +}; + +static struct platform_device *s5pc100_dmacs[] __initdata = { + &s5pc100_device_pdma0, + &s5pc100_device_pdma1, +}; + +static int __init s5pc100_dma_init(void) +{ + platform_add_devices(s5pc100_dmacs, ARRAY_SIZE(s5pc100_dmacs)); + + return 0; +} +arch_initcall(s5pc100_dma_init); diff --git a/arch/arm/mach-s5pc100/include/mach/dma.h b/arch/arm/mach-s5pc100/include/mach/dma.h new file mode 100644 index 00000000000..81209eb1409 --- /dev/null +++ b/arch/arm/mach-s5pc100/include/mach/dma.h @@ -0,0 +1,26 @@ +/* + * 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. + */ + +#ifndef __MACH_DMA_H +#define __MACH_DMA_H + +/* This platform uses the common S3C DMA API driver for PL330 */ +#include <plat/s3c-dma-pl330.h> + +#endif /* __MACH_DMA_H */ |