diff options
Diffstat (limited to 'arch/arm/mach-s3c2412/dma.c')
| -rw-r--r-- | arch/arm/mach-s3c2412/dma.c | 179 |
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); |