1 files changed, 160 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/s3c2412-dma.c b/arch/arm/mach-s3c2410/s3c2412-dma.c
new file mode 100644
index 000000000000..171f3706d36d
--- /dev/null
+++ b/arch/arm/mach-s3c2410/s3c2412-dma.c
@@ -0,0 +1,160 @@
+/* linux/arch/arm/mach-s3c2410/s3c2412-dma.c
+ *
+ * (c) 2006 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2412 DMA selection
+ *
+ * http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sysdev.h>
+#include <asm/dma.h>
+#include <asm/arch/dma.h>
+#include <asm/io.h>
+#include "dma.h"
+#include "cpu.h"
+#include <asm/arch/regs-serial.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-ac97.h>
+#include <asm/arch/regs-mem.h>
+#include <asm/arch/regs-lcd.h>
+#include <asm/arch/regs-sdi.h>
+#include <asm/arch/regs-iis.h>
+#include <asm/arch/regs-spi.h>
+#define MAP(x) { (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID }
+static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
+        [DMACH_XD0] = {
+                .name           = "xdreq0",
+                .channels       = MAP(S3C2412_DMAREQSEL_XDREQ0),
+        },
+        [DMACH_XD1] = {
+                .name           = "xdreq1",
+                .channels       = MAP(S3C2412_DMAREQSEL_XDREQ1),
+        },
+        [DMACH_SDI] = {
+                .name           = "sdi",
+                .channels       = MAP(S3C2412_DMAREQSEL_SDI),
+                .hw_addr.to     = S3C2410_PA_IIS + S3C2410_IISFIFO,
+                .hw_addr.from   = S3C2410_PA_IIS + S3C2410_IISFIFO,
+        },
+        [DMACH_SPI0] = {
+                .name           = "spi0",
+                .channels       = MAP(S3C2412_DMAREQSEL_SPI0TX),
+                .hw_addr.to     = S3C2410_PA_SPI + S3C2410_SPTDAT,
+                .hw_addr.from   = S3C2410_PA_SPI + S3C2410_SPRDAT,
+        },
+        [DMACH_SPI1] = {
+                .name           = "spi1",
+                .channels       = MAP(S3C2412_DMAREQSEL_SPI1TX),
+                .hw_addr.to     = S3C2410_PA_SPI + 0x20 + S3C2410_SPTDAT,
+                .hw_addr.from   = S3C2410_PA_SPI + 0x20 + S3C2410_SPRDAT,
+        },
+        [DMACH_UART0] = {
+                .name           = "uart0",
+                .channels       = MAP(S3C2412_DMAREQSEL_UART0_0),
+                .hw_addr.to     = S3C2410_PA_UART0 + S3C2410_UTXH,
+                .hw_addr.from   = S3C2410_PA_UART0 + S3C2410_URXH,
+        },
+        [DMACH_UART1] = {
+                .name           = "uart1",
+                .channels       = MAP(S3C2412_DMAREQSEL_UART1_0),
+                .hw_addr.to     = S3C2410_PA_UART1 + S3C2410_UTXH,
+                .hw_addr.from   = S3C2410_PA_UART1 + S3C2410_URXH,
+        },
+        [DMACH_UART2] = {
+                .name           = "uart2",
+                .channels       = MAP(S3C2412_DMAREQSEL_UART2_0),
+                .hw_addr.to     = S3C2410_PA_UART2 + S3C2410_UTXH,
+                .hw_addr.from   = S3C2410_PA_UART2 + S3C2410_URXH,
+        },
+        [DMACH_UART0_SRC2] = {
+                .name           = "uart0",
+                .channels       = MAP(S3C2412_DMAREQSEL_UART0_1),
+                .hw_addr.to     = S3C2410_PA_UART0 + S3C2410_UTXH,
+                .hw_addr.from   = S3C2410_PA_UART0 + S3C2410_URXH,
+        },
+        [DMACH_UART1_SRC2] = {
+                .name           = "uart1",
+                .channels       = MAP(S3C2412_DMAREQSEL_UART1_1),
+                .hw_addr.to     = S3C2410_PA_UART1 + S3C2410_UTXH,
+                .hw_addr.from   = S3C2410_PA_UART1 + S3C2410_URXH,
+        },
+        [DMACH_UART2_SRC2] = {
+                .name           = "uart2",
+                .channels       = MAP(S3C2412_DMAREQSEL_UART2_1),
+                .hw_addr.to     = S3C2410_PA_UART2 + S3C2410_UTXH,
+                .hw_addr.from   = S3C2410_PA_UART2 + S3C2410_URXH,
+        },
+        [DMACH_TIMER] = {
+                .name           = "timer",
+                .channels       = MAP(S3C2412_DMAREQSEL_TIMER),
+        },
+        [DMACH_I2S_IN] = {
+                .name           = "i2s-sdi",
+                .channels       = MAP(S3C2412_DMAREQSEL_I2SRX),
+                .hw_addr.from   = S3C2410_PA_IIS + S3C2410_IISFIFO,
+        },
+        [DMACH_I2S_OUT] = {
+                .name           = "i2s-sdo",
+                .channels       = MAP(S3C2412_DMAREQSEL_I2STX),
+                .hw_addr.to     = S3C2410_PA_IIS + S3C2410_IISFIFO,
+        },
+        [DMACH_USB_EP1] = {
+                .name           = "usb-ep1",
+                .channels       = MAP(S3C2412_DMAREQSEL_USBEP1),
+        },
+        [DMACH_USB_EP2] = {
+                .name           = "usb-ep2",
+                .channels       = MAP(S3C2412_DMAREQSEL_USBEP2),
+        },
+        [DMACH_USB_EP3] = {
+                .name           = "usb-ep3",
+                .channels       = MAP(S3C2412_DMAREQSEL_USBEP3),
+        },
+        [DMACH_USB_EP4] = {
+                .name           = "usb-ep4",
+                .channels       = MAP(S3C2412_DMAREQSEL_USBEP4),
+        },
+};
+static void s3c2412_dma_select(struct s3c2410_dma_chan *chan,
+                               struct s3c24xx_dma_map *map)
+{
+        writel(chan->regs + S3C2412_DMA_DMAREQSEL,
+               map->channels[0] | S3C2412_DMAREQSEL_HW);
+}
+static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = {
+        .select         = s3c2412_dma_select,
+        .dcon_mask      = 0,
+        .map            = s3c2412_dma_mappings,
+        .map_size       = ARRAY_SIZE(s3c2412_dma_mappings),
+};
+static int s3c2412_dma_add(struct sys_device *sysdev)
+{
+        return s3c24xx_dma_init_map(&s3c2412_dma_sel);
+}
+static struct sysdev_driver s3c2412_dma_driver = {
+        .add    = s3c2412_dma_add,
+};
+static int __init s3c2412_dma_init(void)
+{
+        return sysdev_driver_register(&s3c2412_sysclass, &s3c2412_dma_driver);
+}
+arch_initcall(s3c2412_dma_init);

diff --git a/arch/arm/mach-s3c2410/s3c2412-dma.c b/arch/arm/mach-s3c2410/s3c2412-dma.c new file mode 100644 index 000000000000..171f3706d36d --- /dev/null +++ b/arch/arm/mach-s3c2410/s3c2412-dma.c
@@ -0,0 +1,160 @@
	1	/* linux/arch/arm/mach-s3c2410/s3c2412-dma.c
	2	*
	3	* (c) 2006 Simtec Electronics
	4	* Ben Dooks <ben@simtec.co.uk>
	5	*
	6	* S3C2412 DMA selection
	7	*
	8	* http://armlinux.simtec.co.uk/
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*/
	14
	15	#include <linux/kernel.h>
	16	#include <linux/init.h>
	17	#include <linux/sysdev.h>
	18
	19	#include <asm/dma.h>
	20	#include <asm/arch/dma.h>
	21	#include <asm/io.h>
	22
	23	#include "dma.h"
	24	#include "cpu.h"
	25
	26	#include <asm/arch/regs-serial.h>
	27	#include <asm/arch/regs-gpio.h>
	28	#include <asm/arch/regs-ac97.h>
	29	#include <asm/arch/regs-mem.h>
	30	#include <asm/arch/regs-lcd.h>
	31	#include <asm/arch/regs-sdi.h>
	32	#include <asm/arch/regs-iis.h>
	33	#include <asm/arch/regs-spi.h>
	34
	35	#define MAP(x) { (x)\| DMA_CH_VALID, (x)\| DMA_CH_VALID, (x)\| DMA_CH_VALID, (x)\| DMA_CH_VALID }
	36
	37	static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
	38	[DMACH_XD0] = {
	39	.name = "xdreq0",
	40	.channels = MAP(S3C2412_DMAREQSEL_XDREQ0),
	41	},
	42	[DMACH_XD1] = {
	43	.name = "xdreq1",
	44	.channels = MAP(S3C2412_DMAREQSEL_XDREQ1),
	45	},
	46	[DMACH_SDI] = {
	47	.name = "sdi",
	48	.channels = MAP(S3C2412_DMAREQSEL_SDI),
	49	.hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO,
	50	.hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO,
	51	},
	52	[DMACH_SPI0] = {
	53	.name = "spi0",
	54	.channels = MAP(S3C2412_DMAREQSEL_SPI0TX),
	55	.hw_addr.to = S3C2410_PA_SPI + S3C2410_SPTDAT,
	56	.hw_addr.from = S3C2410_PA_SPI + S3C2410_SPRDAT,
	57	},
	58	[DMACH_SPI1] = {
	59	.name = "spi1",
	60	.channels = MAP(S3C2412_DMAREQSEL_SPI1TX),
	61	.hw_addr.to = S3C2410_PA_SPI + 0x20 + S3C2410_SPTDAT,
	62	.hw_addr.from = S3C2410_PA_SPI + 0x20 + S3C2410_SPRDAT,
	63	},
	64	[DMACH_UART0] = {
	65	.name = "uart0",
	66	.channels = MAP(S3C2412_DMAREQSEL_UART0_0),
	67	.hw_addr.to = S3C2410_PA_UART0 + S3C2410_UTXH,
	68	.hw_addr.from = S3C2410_PA_UART0 + S3C2410_URXH,
	69	},
	70	[DMACH_UART1] = {
	71	.name = "uart1",
	72	.channels = MAP(S3C2412_DMAREQSEL_UART1_0),
	73	.hw_addr.to = S3C2410_PA_UART1 + S3C2410_UTXH,
	74	.hw_addr.from = S3C2410_PA_UART1 + S3C2410_URXH,
	75	},
	76	[DMACH_UART2] = {
	77	.name = "uart2",
	78	.channels = MAP(S3C2412_DMAREQSEL_UART2_0),
	79	.hw_addr.to = S3C2410_PA_UART2 + S3C2410_UTXH,
	80	.hw_addr.from = S3C2410_PA_UART2 + S3C2410_URXH,
	81	},
	82	[DMACH_UART0_SRC2] = {
	83	.name = "uart0",
	84	.channels = MAP(S3C2412_DMAREQSEL_UART0_1),
	85	.hw_addr.to = S3C2410_PA_UART0 + S3C2410_UTXH,
	86	.hw_addr.from = S3C2410_PA_UART0 + S3C2410_URXH,
	87	},
	88	[DMACH_UART1_SRC2] = {
	89	.name = "uart1",
	90	.channels = MAP(S3C2412_DMAREQSEL_UART1_1),
	91	.hw_addr.to = S3C2410_PA_UART1 + S3C2410_UTXH,
	92	.hw_addr.from = S3C2410_PA_UART1 + S3C2410_URXH,
	93	},
	94	[DMACH_UART2_SRC2] = {
	95	.name = "uart2",
	96	.channels = MAP(S3C2412_DMAREQSEL_UART2_1),
	97	.hw_addr.to = S3C2410_PA_UART2 + S3C2410_UTXH,
	98	.hw_addr.from = S3C2410_PA_UART2 + S3C2410_URXH,
	99	},
	100	[DMACH_TIMER] = {
	101	.name = "timer",
	102	.channels = MAP(S3C2412_DMAREQSEL_TIMER),
	103	},
	104	[DMACH_I2S_IN] = {
	105	.name = "i2s-sdi",
	106	.channels = MAP(S3C2412_DMAREQSEL_I2SRX),
	107	.hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO,
	108	},
	109	[DMACH_I2S_OUT] = {
	110	.name = "i2s-sdo",
	111	.channels = MAP(S3C2412_DMAREQSEL_I2STX),
	112	.hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO,
	113	},
	114	[DMACH_USB_EP1] = {
	115	.name = "usb-ep1",
	116	.channels = MAP(S3C2412_DMAREQSEL_USBEP1),
	117	},
	118	[DMACH_USB_EP2] = {
	119	.name = "usb-ep2",
	120	.channels = MAP(S3C2412_DMAREQSEL_USBEP2),
	121	},
	122	[DMACH_USB_EP3] = {
	123	.name = "usb-ep3",
	124	.channels = MAP(S3C2412_DMAREQSEL_USBEP3),
	125	},
	126	[DMACH_USB_EP4] = {
	127	.name = "usb-ep4",
	128	.channels = MAP(S3C2412_DMAREQSEL_USBEP4),
	129	},
	130	};
	131
	132	static void s3c2412_dma_select(struct s3c2410_dma_chan *chan,
	133	struct s3c24xx_dma_map *map)
	134	{
	135	writel(chan->regs + S3C2412_DMA_DMAREQSEL,
	136	map->channels[0] \| S3C2412_DMAREQSEL_HW);
	137	}
	138
	139	static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = {
	140	.select = s3c2412_dma_select,
	141	.dcon_mask = 0,
	142	.map = s3c2412_dma_mappings,
	143	.map_size = ARRAY_SIZE(s3c2412_dma_mappings),
	144	};
	145
	146	static int s3c2412_dma_add(struct sys_device *sysdev)
	147	{
	148	return s3c24xx_dma_init_map(&s3c2412_dma_sel);
	149	}
	150
	151	static struct sysdev_driver s3c2412_dma_driver = {
	152	.add = s3c2412_dma_add,
	153	};
	154
	155	static int __init s3c2412_dma_init(void)
	156	{
	157	return sysdev_driver_register(&s3c2412_sysclass, &s3c2412_dma_driver);
	158	}
	159
	160	arch_initcall(s3c2412_dma_init);