From 85e2a26f3d17b349a921b93e02b778fa8a09027b Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Mon, 6 Feb 2012 10:02:01 +0900 Subject: ARM: S3C2412: move mach-s3c2412/* into mach-s3c24xx/ This patch moves S3C2412 stuff into mach-s3c24xx/ directory so that we can merge the s3c24 series' directories to the just one mach-s3c24xx/ directory. And this patch is including following. - re-ordered alphabetically by option text at Kconfig and Makefile Cc: Ben Dooks [heiko@sntech.de: move 'config S3C2412_PM_SLEEP' to use it for S3C2416] Signed-off-by: Heiko Stuebner Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c24xx/dma-s3c2412.c | 179 ++++++++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 arch/arm/mach-s3c24xx/dma-s3c2412.c (limited to 'arch/arm/mach-s3c24xx/dma-s3c2412.c') diff --git a/arch/arm/mach-s3c24xx/dma-s3c2412.c b/arch/arm/mach-s3c24xx/dma-s3c2412.c new file mode 100644 index 000000000000..142acd3b5e15 --- /dev/null +++ b/arch/arm/mach-s3c24xx/dma-s3c2412.c @@ -0,0 +1,179 @@ +/* linux/arch/arm/mach-s3c2412/dma.c + * + * Copyright (c) 2006 Simtec Electronics + * Ben Dooks + * + * 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 +#include +#include +#include +#include + +#include + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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); -- cgit v1.2.3-59-g8ed1b