[PATCH 7/7] S5PV210: DMA: Add platform devices for PL330 DMACs
jassisinghbrar at gmail.com
jassisinghbrar at gmail.com
Wed Apr 21 03:42:28 EDT 2010
From: Jassi Brar <jassi.brar at samsung.com>
Samsung's Soc S5PV210 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
S5PV210 platform.
Signed-off-by: Jassi Brar <jassi.brar at samsung.com>
---
arch/arm/mach-s5pv210/Kconfig | 1 +
arch/arm/mach-s5pv210/Makefile | 2 +-
arch/arm/mach-s5pv210/dma.c | 168 ++++++++++++++++++++++++++++++
arch/arm/mach-s5pv210/include/mach/dma.h | 26 +++++
arch/arm/mach-s5pv210/include/mach/map.h | 4 +
5 files changed, 200 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-s5pv210/dma.c
create mode 100644 arch/arm/mach-s5pv210/include/mach/dma.h
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index af33a1a..7601c28 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -12,6 +12,7 @@ if ARCH_S5PV210
config CPU_S5PV210
bool
select PLAT_S5P
+ select S3C_PL330_DMA
help
Enable S5PV210 CPU support
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 8ebf51c..f7f1cdc 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -12,7 +12,7 @@ obj- :=
# Core support for S5PV210 system
-obj-$(CONFIG_CPU_S5PV210) += cpu.o init.o clock.o
+obj-$(CONFIG_CPU_S5PV210) += cpu.o init.o clock.o dma.o
# machine support
diff --git a/arch/arm/mach-s5pv210/dma.c b/arch/arm/mach-s5pv210/dma.c
new file mode 100644
index 0000000..778ad5f
--- /dev/null
+++ b/arch/arm/mach-s5pv210/dma.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2010 Samsung Electronics Co. Ltd.
+ * Jaswinder Singh <jassi.brar at 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 s5pv210_pdma0_resource[] = {
+ [0] = {
+ .start = S5PV210_PA_PDMA0,
+ .end = S5PV210_PA_PDMA0 + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PDMA0,
+ .end = IRQ_PDMA0,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct s3c_pl330_platdata s5pv210_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_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_SPI1_RX,
+ [19] = DMACH_SPI1_TX,
+ [20] = DMACH_MAX,
+ [21] = DMACH_MAX,
+ [22] = DMACH_AC97_MICIN,
+ [23] = DMACH_AC97_PCMIN,
+ [24] = DMACH_AC97_PCMOUT,
+ [25] = DMACH_MAX,
+ [26] = DMACH_PWM,
+ [27] = DMACH_SPDIF,
+ [28] = DMACH_MAX,
+ [29] = DMACH_MAX,
+ [30] = DMACH_MAX,
+ [31] = DMACH_MAX,
+ },
+};
+
+static struct platform_device s5pv210_device_pdma0 = {
+ .name = "s3c-pl330",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(s5pv210_pdma0_resource),
+ .resource = s5pv210_pdma0_resource,
+ .dev = {
+ .dma_mask = &dma_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &s5pv210_pdma0_pdata,
+ },
+};
+
+static struct resource s5pv210_pdma1_resource[] = {
+ [0] = {
+ .start = S5PV210_PA_PDMA1,
+ .end = S5PV210_PA_PDMA1 + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PDMA1,
+ .end = IRQ_PDMA1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct s3c_pl330_platdata s5pv210_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_MAX,
+ [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_MAX,
+ [21] = DMACH_MAX,
+ [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_PCM2_RX,
+ [31] = DMACH_PCM2_TX,
+ },
+};
+
+static struct platform_device s5pv210_device_pdma1 = {
+ .name = "s3c-pl330",
+ .id = 2,
+ .num_resources = ARRAY_SIZE(s5pv210_pdma1_resource),
+ .resource = s5pv210_pdma1_resource,
+ .dev = {
+ .dma_mask = &dma_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &s5pv210_pdma1_pdata,
+ },
+};
+
+static struct platform_device *s5pv210_dmacs[] __initdata = {
+ &s5pv210_device_pdma0,
+ &s5pv210_device_pdma1,
+};
+
+static int __init s5pv210_dma_init(void)
+{
+ platform_add_devices(s5pv210_dmacs, ARRAY_SIZE(s5pv210_dmacs));
+
+ return 0;
+}
+arch_initcall(s5pv210_dma_init);
diff --git a/arch/arm/mach-s5pv210/include/mach/dma.h b/arch/arm/mach-s5pv210/include/mach/dma.h
new file mode 100644
index 0000000..81209eb
--- /dev/null
+++ b/arch/arm/mach-s5pv210/include/mach/dma.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2010 Samsung Electronics Co. Ltd.
+ * Jaswinder Singh <jassi.brar at 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 */
diff --git a/arch/arm/mach-s5pv210/include/mach/map.h b/arch/arm/mach-s5pv210/include/mach/map.h
index c22694c..c038585 100644
--- a/arch/arm/mach-s5pv210/include/mach/map.h
+++ b/arch/arm/mach-s5pv210/include/mach/map.h
@@ -43,6 +43,10 @@
#define S5PV210_PA_SROMC (0xE8000000)
+#define S5PV210_PA_MDMA 0xFA200000
+#define S5PV210_PA_PDMA0 0xE0900000
+#define S5PV210_PA_PDMA1 0xE0A00000
+
#define S5PV210_PA_VIC0 (0xF2000000)
#define S5P_PA_VIC0 S5PV210_PA_VIC0
--
1.6.2.5
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