summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-s3c2412/dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-s3c2412/dma.c')
-rw-r--r--arch/arm/mach-s3c2412/dma.c179
1 files changed, 0 insertions, 179 deletions
diff --git a/arch/arm/mach-s3c2412/dma.c b/arch/arm/mach-s3c2412/dma.c
deleted file mode 100644
index 142acd3b5e15..000000000000
--- a/arch/arm/mach-s3c2412/dma.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/* linux/arch/arm/mach-s3c2412/dma.c
- *
- * Copyright (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/device.h>
-#include <linux/serial_core.h>
-#include <linux/io.h>
-
-#include <mach/dma.h>
-
-#include <plat/dma-s3c24xx.h>
-#include <plat/cpu.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-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 }
-
-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),
- },
- [DMACH_SPI0] = {
- .name = "spi0",
- .channels = MAP(S3C2412_DMAREQSEL_SPI0TX),
- .channels_rx = MAP(S3C2412_DMAREQSEL_SPI0RX),
- },
- [DMACH_SPI1] = {
- .name = "spi1",
- .channels = MAP(S3C2412_DMAREQSEL_SPI1TX),
- .channels_rx = MAP(S3C2412_DMAREQSEL_SPI1RX),
- },
- [DMACH_UART0] = {
- .name = "uart0",
- .channels = MAP(S3C2412_DMAREQSEL_UART0_0),
- .channels_rx = MAP(S3C2412_DMAREQSEL_UART0_0),
- },
- [DMACH_UART1] = {
- .name = "uart1",
- .channels = MAP(S3C2412_DMAREQSEL_UART1_0),
- .channels_rx = MAP(S3C2412_DMAREQSEL_UART1_0),
- },
- [DMACH_UART2] = {
- .name = "uart2",
- .channels = MAP(S3C2412_DMAREQSEL_UART2_0),
- .channels_rx = MAP(S3C2412_DMAREQSEL_UART2_0),
- },
- [DMACH_UART0_SRC2] = {
- .name = "uart0",
- .channels = MAP(S3C2412_DMAREQSEL_UART0_1),
- .channels_rx = MAP(S3C2412_DMAREQSEL_UART0_1),
- },
- [DMACH_UART1_SRC2] = {
- .name = "uart1",
- .channels = MAP(S3C2412_DMAREQSEL_UART1_1),
- .channels_rx = MAP(S3C2412_DMAREQSEL_UART1_1),
- },
- [DMACH_UART2_SRC2] = {
- .name = "uart2",
- .channels = MAP(S3C2412_DMAREQSEL_UART2_1),
- .channels_rx = MAP(S3C2412_DMAREQSEL_UART2_1),
- },
- [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),
- },
- [DMACH_I2S_OUT] = {
- .name = "i2s-sdo",
- .channels = MAP(S3C2412_DMAREQSEL_I2STX),
- .channels_rx = MAP(S3C2412_DMAREQSEL_I2STX),
- },
- [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 dma_data_direction dir)
-{
- unsigned long chsel;
-
- if (dir == DMA_FROM_DEVICE)
- 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)
-{
- 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),
-};
-
-static int __init s3c2412_dma_add(struct device *dev)
-{
- s3c2410_dma_init();
- return s3c24xx_dma_init_map(&s3c2412_dma_sel);
-}
-
-static struct subsys_interface s3c2412_dma_interface = {
- .name = "s3c2412_dma",
- .subsys = &s3c2412_subsys,
- .add_dev = s3c2412_dma_add,
-};
-
-static int __init s3c2412_dma_init(void)
-{
- return subsys_interface_register(&s3c2412_dma_interface);
-}
-
-arch_initcall(s3c2412_dma_init);