summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-exynos4/dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-exynos4/dma.c')
-rw-r--r--arch/arm/mach-exynos4/dma.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/dma.c b/arch/arm/mach-exynos4/dma.c
new file mode 100644
index 00000000000..564bb530f33
--- /dev/null
+++ b/arch/arm/mach-exynos4/dma.c
@@ -0,0 +1,172 @@
+/* linux/arch/arm/mach-exynos4/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/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 exynos4_pdma0_resource[] = {
+ [0] = {
+ .start = EXYNOS4_PA_PDMA0,
+ .end = EXYNOS4_PA_PDMA0 + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PDMA0,
+ .end = IRQ_PDMA0,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct s3c_pl330_platdata exynos4_pdma0_pdata = {
+ .peri = {
+ [0] = DMACH_PCM0_RX,
+ [1] = DMACH_PCM0_TX,
+ [2] = DMACH_PCM2_RX,
+ [3] = DMACH_PCM2_TX,
+ [4] = DMACH_MSM_REQ0,
+ [5] = DMACH_MSM_REQ2,
+ [6] = DMACH_SPI0_RX,
+ [7] = DMACH_SPI0_TX,
+ [8] = DMACH_SPI2_RX,
+ [9] = DMACH_SPI2_TX,
+ [10] = DMACH_I2S0S_TX,
+ [11] = DMACH_I2S0_RX,
+ [12] = DMACH_I2S0_TX,
+ [13] = DMACH_I2S2_RX,
+ [14] = DMACH_I2S2_TX,
+ [15] = DMACH_UART0_RX,
+ [16] = DMACH_UART0_TX,
+ [17] = DMACH_UART2_RX,
+ [18] = DMACH_UART2_TX,
+ [19] = DMACH_UART4_RX,
+ [20] = DMACH_UART4_TX,
+ [21] = DMACH_SLIMBUS0_RX,
+ [22] = DMACH_SLIMBUS0_TX,
+ [23] = DMACH_SLIMBUS2_RX,
+ [24] = DMACH_SLIMBUS2_TX,
+ [25] = DMACH_SLIMBUS4_RX,
+ [26] = DMACH_SLIMBUS4_TX,
+ [27] = DMACH_AC97_MICIN,
+ [28] = DMACH_AC97_PCMIN,
+ [29] = DMACH_AC97_PCMOUT,
+ [30] = DMACH_MAX,
+ [31] = DMACH_MAX,
+ },
+};
+
+static struct platform_device exynos4_device_pdma0 = {
+ .name = "s3c-pl330",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(exynos4_pdma0_resource),
+ .resource = exynos4_pdma0_resource,
+ .dev = {
+ .dma_mask = &dma_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &exynos4_pdma0_pdata,
+ },
+};
+
+static struct resource exynos4_pdma1_resource[] = {
+ [0] = {
+ .start = EXYNOS4_PA_PDMA1,
+ .end = EXYNOS4_PA_PDMA1 + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PDMA1,
+ .end = IRQ_PDMA1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct s3c_pl330_platdata exynos4_pdma1_pdata = {
+ .peri = {
+ [0] = DMACH_PCM0_RX,
+ [1] = DMACH_PCM0_TX,
+ [2] = DMACH_PCM1_RX,
+ [3] = DMACH_PCM1_TX,
+ [4] = DMACH_MSM_REQ1,
+ [5] = DMACH_MSM_REQ3,
+ [6] = DMACH_SPI1_RX,
+ [7] = DMACH_SPI1_TX,
+ [8] = DMACH_I2S0S_TX,
+ [9] = DMACH_I2S0_RX,
+ [10] = DMACH_I2S0_TX,
+ [11] = DMACH_I2S1_RX,
+ [12] = DMACH_I2S1_TX,
+ [13] = DMACH_UART0_RX,
+ [14] = DMACH_UART0_TX,
+ [15] = DMACH_UART1_RX,
+ [16] = DMACH_UART1_TX,
+ [17] = DMACH_UART3_RX,
+ [18] = DMACH_UART3_TX,
+ [19] = DMACH_SLIMBUS1_RX,
+ [20] = DMACH_SLIMBUS1_TX,
+ [21] = DMACH_SLIMBUS3_RX,
+ [22] = DMACH_SLIMBUS3_TX,
+ [23] = DMACH_SLIMBUS5_RX,
+ [24] = DMACH_SLIMBUS5_TX,
+ [25] = DMACH_SLIMBUS0AUX_RX,
+ [26] = DMACH_SLIMBUS0AUX_TX,
+ [27] = DMACH_SPDIF,
+ [28] = DMACH_MAX,
+ [29] = DMACH_MAX,
+ [30] = DMACH_MAX,
+ [31] = DMACH_MAX,
+ },
+};
+
+static struct platform_device exynos4_device_pdma1 = {
+ .name = "s3c-pl330",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(exynos4_pdma1_resource),
+ .resource = exynos4_pdma1_resource,
+ .dev = {
+ .dma_mask = &dma_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &exynos4_pdma1_pdata,
+ },
+};
+
+static struct platform_device *exynos4_dmacs[] __initdata = {
+ &exynos4_device_pdma0,
+ &exynos4_device_pdma1,
+};
+
+static int __init exynos4_dma_init(void)
+{
+ platform_add_devices(exynos4_dmacs, ARRAY_SIZE(exynos4_dmacs));
+
+ return 0;
+}
+arch_initcall(exynos4_dma_init);