X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Farm%2Fmach-s3c2412%2Fdma.c;h=e880524904eb536002a704e5b5499dbdaf366739;hb=018e075c19d2a640cc64a07bb90916269bed57bb;hp=c9cd51439126ad2a122d1f46988a7d1536e77c21;hpb=d45c30cb4c0b5f5555397ba2e942d63b4170fa1f;p=safe%2Fjmp%2Flinux-2.6

diff --git a/arch/arm/mach-s3c2412/dma.c b/arch/arm/mach-s3c2412/dma.c
index c9cd514..e880524 100644
--- a/arch/arm/mach-s3c2412/dma.c
+++ b/arch/arm/mach-s3c2412/dma.c
@@ -16,23 +16,23 @@
 #include <linux/init.h>
 #include <linux/sysdev.h>
 #include <linux/serial_core.h>
+#include <linux/io.h>
 
-#include <asm/dma.h>
-#include <asm/arch/dma.h>
-#include <asm/io.h>
+#include <mach/dma.h>
 
-#include <asm/plat-s3c24xx/dma.h>
-#include <asm/plat-s3c24xx/cpu.h>
+#include <plat/dma-s3c24xx.h>
+#include <plat/cpu.h>
 
-#include <asm/plat-s3c/regs-serial.h>
-#include <asm/arch/regs-gpio.h>
-#include <asm/plat-s3c/regs-ac97.h>
-#include <asm/arch/regs-mem.h>
-#include <asm/arch/regs-lcd.h>
-#include <asm/arch/regs-sdi.h>
-#include <asm/plat-s3c24xx/regs-s3c2412-iis.h>
-#include <asm/plat-s3c24xx/regs-iis.h>
-#include <asm/plat-s3c24xx/regs-spi.h>
+#include <plat/regs-serial.h>
+#include <mach/regs-gpio.h>
+#include <plat/regs-ac97.h>
+#include <plat/regs-dma.h>
+#include <mach/regs-mem.h>
+#include <mach/regs-lcd.h>
+#include <mach/regs-sdi.h>
+#include <plat/regs-s3c2412-iis.h>
+#include <plat/regs-iis.h>
+#include <plat/regs-spi.h>
 
 #define MAP(x) { (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID }
 
@@ -40,106 +40,141 @@ static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
 	[DMACH_XD0] = {
 		.name		= "xdreq0",
 		.channels	= MAP(S3C2412_DMAREQSEL_XDREQ0),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_XDREQ0),
 	},
 	[DMACH_XD1] = {
 		.name		= "xdreq1",
 		.channels	= MAP(S3C2412_DMAREQSEL_XDREQ1),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_XDREQ1),
 	},
 	[DMACH_SDI] = {
 		.name		= "sdi",
 		.channels	= MAP(S3C2412_DMAREQSEL_SDI),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_SDI),
 		.hw_addr.to	= S3C2410_PA_SDI + S3C2410_SDIDATA,
 		.hw_addr.from	= S3C2410_PA_SDI + S3C2410_SDIDATA,
 	},
 	[DMACH_SPI0] = {
 		.name		= "spi0",
 		.channels	= MAP(S3C2412_DMAREQSEL_SPI0TX),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_SPI0RX),
 		.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),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_SPI1RX),
 		.hw_addr.to	= S3C2410_PA_SPI + S3C2412_SPI1 + S3C2410_SPTDAT,
 		.hw_addr.from	= S3C2410_PA_SPI + S3C2412_SPI1  + S3C2410_SPRDAT,
 	},
 	[DMACH_UART0] = {
 		.name		= "uart0",
 		.channels	= MAP(S3C2412_DMAREQSEL_UART0_0),
+		.channels_rx	= 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),
+		.channels_rx	= 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),
+		.channels_rx	= 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),
+		.channels_rx	= 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),
+		.channels_rx	= 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),
+		.channels_rx	= 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),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_TIMER),
 	},
 	[DMACH_I2S_IN] = {
 		.name		= "i2s-sdi",
 		.channels	= MAP(S3C2412_DMAREQSEL_I2SRX),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_I2SRX),
 		.hw_addr.from	= S3C2410_PA_IIS + S3C2412_IISRXD,
 	},
 	[DMACH_I2S_OUT] = {
 		.name		= "i2s-sdo",
 		.channels	= MAP(S3C2412_DMAREQSEL_I2STX),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_I2STX),
 		.hw_addr.to	= S3C2410_PA_IIS + S3C2412_IISTXD,
 	},
 	[DMACH_USB_EP1] = {
 		.name		= "usb-ep1",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP1),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP1),
 	},
 	[DMACH_USB_EP2] = {
 		.name		= "usb-ep2",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP2),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP2),
 	},
 	[DMACH_USB_EP3] = {
 		.name		= "usb-ep3",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP3),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP3),
 	},
 	[DMACH_USB_EP4] = {
 		.name		= "usb-ep4",
 		.channels	= MAP(S3C2412_DMAREQSEL_USBEP4),
+		.channels_rx	= MAP(S3C2412_DMAREQSEL_USBEP4),
 	},
 };
 
+static void s3c2412_dma_direction(struct s3c2410_dma_chan *chan,
+				  struct s3c24xx_dma_map *map,
+				  enum s3c2410_dmasrc dir)
+{
+	unsigned long chsel;
+
+	if (dir == S3C2410_DMASRC_HW)
+		chsel = map->channels_rx[0];
+	else
+		chsel = map->channels[0];
+
+	chsel &= ~DMA_CH_VALID;
+	chsel |= S3C2412_DMAREQSEL_HW;
+
+	writel(chsel, chan->regs + S3C2412_DMA_DMAREQSEL);
+}
+
 static void s3c2412_dma_select(struct s3c2410_dma_chan *chan,
 			       struct s3c24xx_dma_map *map)
 {
-	writel(map->channels[0] | S3C2412_DMAREQSEL_HW,
-	       chan->regs + S3C2412_DMA_DMAREQSEL);
+	s3c2412_dma_direction(chan, map, chan->source);
 }
 
 static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = {
 	.select		= s3c2412_dma_select,
+	.direction	= s3c2412_dma_direction,
 	.dcon_mask	= 0,
 	.map		= s3c2412_dma_mappings,
 	.map_size	= ARRAY_SIZE(s3c2412_dma_mappings),