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>

4 files changed, 195 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index 2eb949771dbc..b2a11dfa3399 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 e1081a9b19c8..543f3de5131e 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 000000000000..8e7af46bba09
--- /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 000000000000..81209eb1409b
--- /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 */