ARM: S5P64X0: Move DMA support for S5P64X0

This patch moves DMA support files in the mach-s5p64x0
for S5P6440 and S5P6450 SoCs.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Jassi Brar <jassi.brar@samsung.com>

2 files changed, 175 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p64x0/dma.c b/arch/arm/mach-s5p64x0/dma.c
new file mode 100644
index 000000000000..29a8c2410049
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/dma.c
@@ -0,0 +1,149 @@
+/* linux/arch/arm/mach-s5p64x0/dma.c
+ *
+ * Copyright (c) 2010 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 <mach/map.h>
+#include <mach/irqs.h>
+#include <mach/regs-clock.h>
+
+#include <plat/devs.h>
+#include <plat/s3c-pl330-pdata.h>
+
+static u64 dma_dmamask = DMA_BIT_MASK(32);
+
+static struct resource s5p64x0_pdma_resource[] = {
+        [0] = {
+                .start  = S5P64X0_PA_PDMA,
+                .end    = S5P64X0_PA_PDMA + SZ_4K,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_DMA0,
+                .end    = IRQ_DMA0,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct s3c_pl330_platdata s5p6440_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_UART3_RX,
+                [7] = DMACH_UART3_TX,
+                [8] = DMACH_MAX,
+                [9] = DMACH_MAX,
+                [10] = DMACH_PCM0_TX,
+                [11] = DMACH_PCM0_RX,
+                [12] = DMACH_I2S0_TX,
+                [13] = DMACH_I2S0_RX,
+                [14] = DMACH_SPI0_TX,
+                [15] = DMACH_SPI0_RX,
+                [16] = DMACH_MAX,
+                [17] = DMACH_MAX,
+                [18] = DMACH_MAX,
+                [19] = DMACH_MAX,
+                [20] = DMACH_SPI1_TX,
+                [21] = DMACH_SPI1_RX,
+                [22] = DMACH_MAX,
+                [23] = DMACH_MAX,
+                [24] = DMACH_MAX,
+                [25] = DMACH_MAX,
+                [26] = DMACH_MAX,
+                [27] = DMACH_MAX,
+                [28] = DMACH_MAX,
+                [29] = DMACH_PWM,
+                [30] = DMACH_MAX,
+                [31] = DMACH_MAX,
+        },
+};
+
+static struct s3c_pl330_platdata s5p6450_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_UART3_RX,
+                [7] = DMACH_UART3_TX,
+                [8] = DMACH_UART4_RX,
+                [9] = DMACH_UART4_TX,
+                [10] = DMACH_PCM0_TX,
+                [11] = DMACH_PCM0_RX,
+                [12] = DMACH_I2S0_TX,
+                [13] = DMACH_I2S0_RX,
+                [14] = DMACH_SPI0_TX,
+                [15] = DMACH_SPI0_RX,
+                [16] = DMACH_PCM1_TX,
+                [17] = DMACH_PCM1_RX,
+                [18] = DMACH_PCM2_TX,
+                [19] = DMACH_PCM2_RX,
+                [20] = DMACH_SPI1_TX,
+                [21] = DMACH_SPI1_RX,
+                [22] = DMACH_USI_TX,
+                [23] = DMACH_USI_RX,
+                [24] = DMACH_MAX,
+                [25] = DMACH_I2S1_TX,
+                [26] = DMACH_I2S1_RX,
+                [27] = DMACH_I2S2_TX,
+                [28] = DMACH_I2S2_RX,
+                [29] = DMACH_PWM,
+                [30] = DMACH_UART5_RX,
+                [31] = DMACH_UART5_TX,
+        },
+};
+
+static struct platform_device s5p64x0_device_pdma = {
+        .name           = "s3c-pl330",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(s5p64x0_pdma_resource),
+        .resource       = s5p64x0_pdma_resource,
+        .dev            = {
+                .dma_mask = &dma_dmamask,
+                .coherent_dma_mask = DMA_BIT_MASK(32),
+        },
+};
+
+static int __init s5p64x0_dma_init(void)
+{
+        unsigned int id;
+
+        id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
+
+        if (id == 0x50000)
+                s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
+        else
+                s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;
+
+        platform_device_register(&s5p64x0_device_pdma);
+
+        return 0;
+}
+arch_initcall(s5p64x0_dma_init);
diff --git a/arch/arm/mach-s5p64x0/include/mach/dma.h b/arch/arm/mach-s5p64x0/include/mach/dma.h
new file mode 100644
index 000000000000..81209eb1409b
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/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 */