diff options
Diffstat (limited to 'arch/arm/plat-samsung')
| -rw-r--r-- | arch/arm/plat-samsung/Kconfig | 15 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/Makefile | 6 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/dma-ops.c | 146 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/dma.c | 84 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/dma-core.h | 22 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/dma-ops.h | 69 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/dma-pl330.h | 121 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/dma-s3c24xx.h | 73 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/dma.h | 130 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/regs-dma.h | 151 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/s3c-dma-ops.c | 146 |
11 files changed, 0 insertions, 963 deletions
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index 9bd2776e7d05..cb8e3d655d1a 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -236,13 +236,6 @@ config S3C_SETUP_CAMIF help Compile in common setup code for S3C CAMIF devices -# DMA - -config S3C_DMA - bool - help - Internal configuration for S3C DMA core - config SAMSUNG_PM_GPIO bool default y if GPIO_SAMSUNG && PM @@ -250,14 +243,6 @@ config SAMSUNG_PM_GPIO Include legacy GPIO power management code for platforms not using pinctrl-samsung driver. -config SAMSUNG_DMADEV - bool "Use legacy Samsung DMA abstraction" - depends on CPU_S5PV210 || ARCH_S3C64XX - select DMADEVICES - default y - help - Use DMA device engine for PL330 DMAC. - endif config S5P_DEV_MFC diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 87746c37f030..1a29ab1f446d 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -26,12 +26,6 @@ obj-$(CONFIG_SAMSUNG_DEV_BACKLIGHT) += dev-backlight.o obj-$(CONFIG_S3C_SETUP_CAMIF) += setup-camif.o -# DMA support - -obj-$(CONFIG_S3C_DMA) += dma.o s3c-dma-ops.o - -obj-$(CONFIG_SAMSUNG_DMADEV) += dma-ops.o - # PM support obj-$(CONFIG_PM_SLEEP) += pm-common.o diff --git a/arch/arm/plat-samsung/dma-ops.c b/arch/arm/plat-samsung/dma-ops.c deleted file mode 100644 index 886326ee6f6c..000000000000 --- a/arch/arm/plat-samsung/dma-ops.c +++ /dev/null @@ -1,146 +0,0 @@ -/* linux/arch/arm/plat-samsung/dma-ops.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Samsung DMA Operations - * - * 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/errno.h> -#include <linux/amba/pl330.h> -#include <linux/scatterlist.h> -#include <linux/export.h> - -#include <mach/dma.h> - -#if defined(CONFIG_PL330_DMA) -#define dma_filter pl330_filter -#elif defined(CONFIG_S3C64XX_PL080) -#define dma_filter pl08x_filter_id -#endif - -static unsigned samsung_dmadev_request(enum dma_ch dma_ch, - struct samsung_dma_req *param, - struct device *dev, char *ch_name) -{ - dma_cap_mask_t mask; - - dma_cap_zero(mask); - dma_cap_set(param->cap, mask); - - if (dev->of_node) - return (unsigned)dma_request_slave_channel(dev, ch_name); - else - return (unsigned)dma_request_channel(mask, dma_filter, - (void *)dma_ch); -} - -static int samsung_dmadev_release(unsigned ch, void *param) -{ - dma_release_channel((struct dma_chan *)ch); - - return 0; -} - -static int samsung_dmadev_config(unsigned ch, - struct samsung_dma_config *param) -{ - struct dma_chan *chan = (struct dma_chan *)ch; - struct dma_slave_config slave_config; - - if (param->direction == DMA_DEV_TO_MEM) { - memset(&slave_config, 0, sizeof(struct dma_slave_config)); - slave_config.direction = param->direction; - slave_config.src_addr = param->fifo; - slave_config.src_addr_width = param->width; - slave_config.src_maxburst = 1; - dmaengine_slave_config(chan, &slave_config); - } else if (param->direction == DMA_MEM_TO_DEV) { - memset(&slave_config, 0, sizeof(struct dma_slave_config)); - slave_config.direction = param->direction; - slave_config.dst_addr = param->fifo; - slave_config.dst_addr_width = param->width; - slave_config.dst_maxburst = 1; - dmaengine_slave_config(chan, &slave_config); - } else { - pr_warn("unsupported direction\n"); - return -EINVAL; - } - - return 0; -} - -static int samsung_dmadev_prepare(unsigned ch, - struct samsung_dma_prep *param) -{ - struct scatterlist sg; - struct dma_chan *chan = (struct dma_chan *)ch; - struct dma_async_tx_descriptor *desc; - - switch (param->cap) { - case DMA_SLAVE: - sg_init_table(&sg, 1); - sg_dma_len(&sg) = param->len; - sg_set_page(&sg, pfn_to_page(PFN_DOWN(param->buf)), - param->len, offset_in_page(param->buf)); - sg_dma_address(&sg) = param->buf; - - desc = dmaengine_prep_slave_sg(chan, - &sg, 1, param->direction, DMA_PREP_INTERRUPT); - break; - case DMA_CYCLIC: - desc = dmaengine_prep_dma_cyclic(chan, param->buf, - param->len, param->period, param->direction, - DMA_PREP_INTERRUPT | DMA_CTRL_ACK); - break; - default: - dev_err(&chan->dev->device, "unsupported format\n"); - return -EFAULT; - } - - if (!desc) { - dev_err(&chan->dev->device, "cannot prepare cyclic dma\n"); - return -EFAULT; - } - - desc->callback = param->fp; - desc->callback_param = param->fp_param; - - dmaengine_submit((struct dma_async_tx_descriptor *)desc); - - return 0; -} - -static inline int samsung_dmadev_trigger(unsigned ch) -{ - dma_async_issue_pending((struct dma_chan *)ch); - - return 0; -} - -static inline int samsung_dmadev_flush(unsigned ch) -{ - return dmaengine_terminate_all((struct dma_chan *)ch); -} - -static struct samsung_dma_ops dmadev_ops = { - .request = samsung_dmadev_request, - .release = samsung_dmadev_release, - .config = samsung_dmadev_config, - .prepare = samsung_dmadev_prepare, - .trigger = samsung_dmadev_trigger, - .started = NULL, - .flush = samsung_dmadev_flush, - .stop = samsung_dmadev_flush, -}; - -void *samsung_dmadev_get_ops(void) -{ - return &dmadev_ops; -} -EXPORT_SYMBOL(samsung_dmadev_get_ops); diff --git a/arch/arm/plat-samsung/dma.c b/arch/arm/plat-samsung/dma.c deleted file mode 100644 index 6143aa147688..000000000000 --- a/arch/arm/plat-samsung/dma.c +++ /dev/null @@ -1,84 +0,0 @@ -/* linux/arch/arm/plat-samsung/dma.c - * - * Copyright (c) 2003-2009 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * S3C DMA core - * - * 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. -*/ - -struct s3c2410_dma_buf; - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/errno.h> - -#include <mach/dma.h> -#include <mach/irqs.h> - -/* dma channel state information */ -struct s3c2410_dma_chan s3c2410_chans[S3C_DMA_CHANNELS]; -struct s3c2410_dma_chan *s3c_dma_chan_map[DMACH_MAX]; - -/* s3c_dma_lookup_channel - * - * change the dma channel number given into a real dma channel id -*/ - -struct s3c2410_dma_chan *s3c_dma_lookup_channel(unsigned int channel) -{ - if (channel & DMACH_LOW_LEVEL) - return &s3c2410_chans[channel & ~DMACH_LOW_LEVEL]; - else - return s3c_dma_chan_map[channel]; -} - -/* do we need to protect the settings of the fields from - * irq? -*/ - -int s3c2410_dma_set_opfn(enum dma_ch channel, s3c2410_dma_opfn_t rtn) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - if (chan == NULL) - return -EINVAL; - - pr_debug("%s: chan=%p, op rtn=%p\n", __func__, chan, rtn); - - chan->op_fn = rtn; - - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_set_opfn); - -int s3c2410_dma_set_buffdone_fn(enum dma_ch channel, s3c2410_dma_cbfn_t rtn) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - if (chan == NULL) - return -EINVAL; - - pr_debug("%s: chan=%p, callback rtn=%p\n", __func__, chan, rtn); - - chan->callback_fn = rtn; - - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_set_buffdone_fn); - -int s3c2410_dma_setflags(enum dma_ch channel, unsigned int flags) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - if (chan == NULL) - return -EINVAL; - - chan->flags = flags; - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_setflags); diff --git a/arch/arm/plat-samsung/include/plat/dma-core.h b/arch/arm/plat-samsung/include/plat/dma-core.h deleted file mode 100644 index 32ff2a92cb3c..000000000000 --- a/arch/arm/plat-samsung/include/plat/dma-core.h +++ /dev/null @@ -1,22 +0,0 @@ -/* arch/arm/plat-s3c/include/plat/dma.h - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * Samsung S3C DMA core support - * - * 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. -*/ - -extern struct s3c2410_dma_chan *s3c_dma_lookup_channel(unsigned int channel); - -extern struct s3c2410_dma_chan *s3c_dma_chan_map[]; - -/* the currently allocated channel information */ -extern struct s3c2410_dma_chan s3c2410_chans[]; - - diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h deleted file mode 100644 index ce6d7634b6cb..000000000000 --- a/arch/arm/plat-samsung/include/plat/dma-ops.h +++ /dev/null @@ -1,69 +0,0 @@ -/* arch/arm/plat-samsung/include/plat/dma-ops.h - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Samsung DMA support - * - * 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. - */ - -#ifndef __SAMSUNG_DMA_OPS_H_ -#define __SAMSUNG_DMA_OPS_H_ __FILE__ - -#include <linux/dmaengine.h> -#include <mach/dma.h> - -struct samsung_dma_req { - enum dma_transaction_type cap; - struct s3c2410_dma_client *client; -}; - -struct samsung_dma_prep { - enum dma_transaction_type cap; - enum dma_transfer_direction direction; - dma_addr_t buf; - unsigned long period; - unsigned long len; - void (*fp)(void *data); - void *fp_param; -}; - -struct samsung_dma_config { - enum dma_transfer_direction direction; - enum dma_slave_buswidth width; - dma_addr_t fifo; -}; - -struct samsung_dma_ops { - unsigned (*request)(enum dma_ch ch, struct samsung_dma_req *param, - struct device *dev, char *ch_name); - int (*release)(unsigned ch, void *param); - int (*config)(unsigned ch, struct samsung_dma_config *param); - int (*prepare)(unsigned ch, struct samsung_dma_prep *param); - int (*trigger)(unsigned ch); - int (*started)(unsigned ch); - int (*flush)(unsigned ch); - int (*stop)(unsigned ch); -}; - -extern void *samsung_dmadev_get_ops(void); -extern void *s3c_dma_get_ops(void); - -static inline void *__samsung_dma_get_ops(void) -{ - if (samsung_dma_is_dmadev()) - return samsung_dmadev_get_ops(); - else - return s3c_dma_get_ops(); -} - -/* - * samsung_dma_get_ops - * get the set of samsung dma operations - */ -#define samsung_dma_get_ops() __samsung_dma_get_ops() - -#endif /* __SAMSUNG_DMA_OPS_H_ */ diff --git a/arch/arm/plat-samsung/include/plat/dma-pl330.h b/arch/arm/plat-samsung/include/plat/dma-pl330.h deleted file mode 100644 index abe07fae71db..000000000000 --- a/arch/arm/plat-samsung/include/plat/dma-pl330.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (C) 2010 Samsung Electronics Co. Ltd. - * Jaswinder Singh <jassi.brar@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __DMA_PL330_H_ -#define __DMA_PL330_H_ __FILE__ - -/* - * PL330 can assign any channel to communicate with - * any of the peripherals attched to the DMAC. - * For the sake of consistency across client drivers, - * We keep the channel names unchanged and only add - * missing peripherals are added. - * Order is not important since DMA PL330 API driver - * use these just as IDs. - */ -enum dma_ch { - DMACH_UART0_RX = 0, - DMACH_UART0_TX, - DMACH_UART1_RX, - DMACH_UART1_TX, - DMACH_UART2_RX, - DMACH_UART2_TX, - DMACH_UART3_RX, - DMACH_UART3_TX, - DMACH_UART4_RX, - DMACH_UART4_TX, - DMACH_UART5_RX, - DMACH_UART5_TX, - DMACH_USI_RX, - DMACH_USI_TX, - DMACH_IRDA, - DMACH_I2S0_RX, - DMACH_I2S0_TX, - DMACH_I2S0S_TX, - DMACH_I2S1_RX, - DMACH_I2S1_TX, - DMACH_I2S2_RX, - DMACH_I2S2_TX, - DMACH_SPI0_RX, - DMACH_SPI0_TX, - DMACH_SPI1_RX, - DMACH_SPI1_TX, - DMACH_SPI2_RX, - DMACH_SPI2_TX, - DMACH_AC97_MICIN, - DMACH_AC97_PCMIN, - DMACH_AC97_PCMOUT, - DMACH_EXTERNAL, - DMACH_PWM, - DMACH_SPDIF, - DMACH_HSI_RX, - DMACH_HSI_TX, - DMACH_PCM0_TX, - DMACH_PCM0_RX, - DMACH_PCM1_TX, - DMACH_PCM1_RX, - DMACH_PCM2_TX, - DMACH_PCM2_RX, - DMACH_MSM_REQ3, - DMACH_MSM_REQ2, - DMACH_MSM_REQ1, - DMACH_MSM_REQ0, - DMACH_SLIMBUS0_RX, - DMACH_SLIMBUS0_TX, - DMACH_SLIMBUS0AUX_RX, - DMACH_SLIMBUS0AUX_TX, - DMACH_SLIMBUS1_RX, - DMACH_SLIMBUS1_TX, - DMACH_SLIMBUS2_RX, - DMACH_SLIMBUS2_TX, - DMACH_SLIMBUS3_RX, - DMACH_SLIMBUS3_TX, - DMACH_SLIMBUS4_RX, - DMACH_SLIMBUS4_TX, - DMACH_SLIMBUS5_RX, - DMACH_SLIMBUS5_TX, - DMACH_MIPI_HSI0, - DMACH_MIPI_HSI1, - DMACH_MIPI_HSI2, - DMACH_MIPI_HSI3, - DMACH_MIPI_HSI4, - DMACH_MIPI_HSI5, - DMACH_MIPI_HSI6, - DMACH_MIPI_HSI7, - DMACH_DISP1, - DMACH_MTOM_0, - DMACH_MTOM_1, - DMACH_MTOM_2, - DMACH_MTOM_3, - DMACH_MTOM_4, - DMACH_MTOM_5, - DMACH_MTOM_6, - DMACH_MTOM_7, - /* END Marker, also used to denote a reserved channel */ - DMACH_MAX, -}; - -struct s3c2410_dma_client { - char *name; -}; - -static inline bool samsung_dma_has_circular(void) -{ - return true; -} - -static inline bool samsung_dma_is_dmadev(void) -{ - return true; -} - -#include <plat/dma-ops.h> - -#endif /* __DMA_PL330_H_ */ diff --git a/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h b/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h deleted file mode 100644 index bd3a6db14cbb..000000000000 --- a/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h +++ /dev/null @@ -1,73 +0,0 @@ -/* linux/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h - * - * Copyright (C) 2006 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * Samsung S3C24XX DMA support - per SoC functions - * - * 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 <plat/dma-core.h> - -extern struct bus_type dma_subsys; -extern struct s3c2410_dma_chan s3c2410_chans[S3C_DMA_CHANNELS]; - -#define DMA_CH_VALID (1<<31) -#define DMA_CH_NEVER (1<<30) - -/* struct s3c24xx_dma_map - * - * this holds the mapping information for the channel selected - * to be connected to the specified device -*/ - -struct s3c24xx_dma_map { - const char *name; - - unsigned long channels[S3C_DMA_CHANNELS]; -}; - -struct s3c24xx_dma_selection { - struct s3c24xx_dma_map *map; - unsigned long map_size; - unsigned long dcon_mask; - - void (*select)(struct s3c2410_dma_chan *chan, - struct s3c24xx_dma_map *map); -}; - -extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel); - -/* struct s3c24xx_dma_order_ch - * - * channel map for one of the `enum dma_ch` dma channels. the list - * entry contains a set of low-level channel numbers, orred with - * DMA_CH_VALID, which are checked in the order in the array. -*/ - -struct s3c24xx_dma_order_ch { - unsigned int list[S3C_DMA_CHANNELS]; /* list of channels */ - unsigned int flags; /* flags */ -}; - -/* struct s3c24xx_dma_order - * - * information provided by either the core or the board to give the - * dma system a hint on how to allocate channels -*/ - -struct s3c24xx_dma_order { - struct s3c24xx_dma_order_ch channels[DMACH_MAX]; -}; - -extern int s3c24xx_dma_order_set(struct s3c24xx_dma_order *map); - -/* DMA init code, called from the cpu support code */ - -extern int s3c2410_dma_init(void); - -extern int s3c24xx_dma_init(unsigned int channels, unsigned int irq, - unsigned int stride); diff --git a/arch/arm/plat-samsung/include/plat/dma.h b/arch/arm/plat-samsung/include/plat/dma.h deleted file mode 100644 index 7b02143ccd9a..000000000000 --- a/arch/arm/plat-samsung/include/plat/dma.h +++ /dev/null @@ -1,130 +0,0 @@ -/* arch/arm/plat-samsung/include/plat/dma.h - * - * Copyright (C) 2003-2006 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * Samsung S3C DMA support - * - * 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. -*/ - -#ifndef __PLAT_DMA_H -#define __PLAT_DMA_H - -#include <linux/dma-mapping.h> - -enum s3c2410_dma_buffresult { - S3C2410_RES_OK, - S3C2410_RES_ERR, - S3C2410_RES_ABORT -}; - -/* enum s3c2410_chan_op - * - * operation codes passed to the DMA code by the user, and also used - * to inform the current channel owner of any changes to the system state -*/ - -enum s3c2410_chan_op { - S3C2410_DMAOP_START, - S3C2410_DMAOP_STOP, - S3C2410_DMAOP_PAUSE, - S3C2410_DMAOP_RESUME, - S3C2410_DMAOP_FLUSH, - S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */ - S3C2410_DMAOP_STARTED, /* indicate channel started */ -}; - -struct s3c2410_dma_client { - char *name; -}; - -struct s3c2410_dma_chan; -enum dma_ch; - -/* s3c2410_dma_cbfn_t - * - * buffer callback routine type -*/ - -typedef void (*s3c2410_dma_cbfn_t)(struct s3c2410_dma_chan *, - void *buf, int size, - enum s3c2410_dma_buffresult result); - -typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *, - enum s3c2410_chan_op ); - - - -/* s3c2410_dma_request - * - * request a dma channel exclusivley -*/ - -extern int s3c2410_dma_request(enum dma_ch channel, - struct s3c2410_dma_client *, void *dev); - - -/* s3c2410_dma_ctrl - * - * change the state of the dma channel -*/ - -extern int s3c2410_dma_ctrl(enum dma_ch channel, enum s3c2410_chan_op op); - -/* s3c2410_dma_setflags - * - * set the channel's flags to a given state -*/ - -extern int s3c2410_dma_setflags(enum dma_ch channel, - unsigned int flags); - -/* s3c2410_dma_free - * - * free the dma channel (will also abort any outstanding operations) -*/ - -extern int s3c2410_dma_free(enum dma_ch channel, struct s3c2410_dma_client *); - -/* s3c2410_dma_enqueue - * - * place the given buffer onto the queue of operations for the channel. - * The buffer must be allocated from dma coherent memory, or the Dcache/WB - * drained before the buffer is given to the DMA system. -*/ - -extern int s3c2410_dma_enqueue(enum dma_ch channel, void *id, - dma_addr_t data, int size); - -/* s3c2410_dma_config - * - * configure the dma channel -*/ - -extern int s3c2410_dma_config(enum dma_ch channel, int xferunit); - -/* s3c2410_dma_devconfig - * - * configure the device we're talking to -*/ - -extern int s3c2410_dma_devconfig(enum dma_ch channel, - enum dma_data_direction source, unsigned long devaddr); - -/* s3c2410_dma_getposition - * - * get the position that the dma transfer is currently at -*/ - -extern int s3c2410_dma_getposition(enum dma_ch channel, - dma_addr_t *src, dma_addr_t *dest); - -extern int s3c2410_dma_set_opfn(enum dma_ch, s3c2410_dma_opfn_t rtn); -extern int s3c2410_dma_set_buffdone_fn(enum dma_ch, s3c2410_dma_cbfn_t rtn); - -#include <plat/dma-ops.h> - -#endif diff --git a/arch/arm/plat-samsung/include/plat/regs-dma.h b/arch/arm/plat-samsung/include/plat/regs-dma.h deleted file mode 100644 index a7d622ef16af..000000000000 --- a/arch/arm/plat-samsung/include/plat/regs-dma.h +++ /dev/null @@ -1,151 +0,0 @@ -/* arch/arm/plat-samsung/include/plat/regs-dma.h - * - * Copyright (C) 2003-2006 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * Samsung S3C24XX DMA support - * - * 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. -*/ - -#ifndef __ASM_PLAT_REGS_DMA_H -#define __ASM_PLAT_REGS_DMA_H __FILE__ - -#define S3C2410_DMA_DISRC (0x00) -#define S3C2410_DMA_DISRCC (0x04) -#define S3C2410_DMA_DIDST (0x08) -#define S3C2410_DMA_DIDSTC (0x0C) -#define S3C2410_DMA_DCON (0x10) -#define S3C2410_DMA_DSTAT (0x14) -#define S3C2410_DMA_DCSRC (0x18) -#define S3C2410_DMA_DCDST (0x1C) -#define S3C2410_DMA_DMASKTRIG (0x20) -#define S3C2412_DMA_DMAREQSEL (0x24) -#define S3C2443_DMA_DMAREQSEL (0x24) - -#define S3C2410_DISRCC_INC (1 << 0) -#define S3C2410_DISRCC_APB (1 << 1) - -#define S3C2410_DMASKTRIG_STOP (1 << 2) -#define S3C2410_DMASKTRIG_ON (1 << 1) -#define S3C2410_DMASKTRIG_SWTRIG (1 << 0) - -#define S3C2410_DCON_DEMAND (0 << 31) -#define S3C2410_DCON_HANDSHAKE (1 << 31) -#define S3C2410_DCON_SYNC_PCLK (0 << 30) -#define S3C2410_DCON_SYNC_HCLK (1 << 30) - -#define S3C2410_DCON_INTREQ (1 << 29) - -#define S3C2410_DCON_CH0_XDREQ0 (0 << 24) -#define S3C2410_DCON_CH0_UART0 (1 << 24) -#define S3C2410_DCON_CH0_SDI (2 << 24) -#define S3C2410_DCON_CH0_TIMER (3 << 24) -#define S3C2410_DCON_CH0_USBEP1 (4 << 24) - -#define S3C2410_DCON_CH1_XDREQ1 (0 << 24) -#define S3C2410_DCON_CH1_UART1 (1 << 24) -#define S3C2410_DCON_CH1_I2SSDI (2 << 24) -#define S3C2410_DCON_CH1_SPI (3 << 24) -#define S3C2410_DCON_CH1_USBEP2 (4 << 24) - -#define S3C2410_DCON_CH2_I2SSDO (0 << 24) -#define S3C2410_DCON_CH2_I2SSDI (1 << 24) -#define S3C2410_DCON_CH2_SDI (2 << 24) -#define S3C2410_DCON_CH2_TIMER (3 << 24) -#define S3C2410_DCON_CH2_USBEP3 (4 << 24) - -#define S3C2410_DCON_CH3_UART2 (0 << 24) -#define S3C2410_DCON_CH3_SDI (1 << 24) -#define S3C2410_DCON_CH3_SPI (2 << 24) -#define S3C2410_DCON_CH3_TIMER (3 << 24) -#define S3C2410_DCON_CH3_USBEP4 (4 << 24) - -#define S3C2410_DCON_SRCSHIFT (24) -#define S3C2410_DCON_SRCMASK (7 << 24) - -#define S3C2410_DCON_BYTE (0 << 20) -#define S3C2410_DCON_HALFWORD (1 << 20) -#define S3C2410_DCON_WORD (2 << 20) - -#define S3C2410_DCON_AUTORELOAD (0 << 22) -#define S3C2410_DCON_NORELOAD (1 << 22) -#define S3C2410_DCON_HWTRIG (1 << 23) - -#ifdef CONFIG_CPU_S3C2440 - -#define S3C2440_DIDSTC_CHKINT (1 << 2) - -#define S3C2440_DCON_CH0_I2SSDO (5 << 24) -#define S3C2440_DCON_CH0_PCMIN (6 << 24) - -#define S3C2440_DCON_CH1_PCMOUT (5 << 24) -#define S3C2440_DCON_CH1_SDI (6 << 24) - -#define S3C2440_DCON_CH2_PCMIN (5 << 24) -#define S3C2440_DCON_CH2_MICIN (6 << 24) - -#define S3C2440_DCON_CH3_MICIN (5 << 24) -#define S3C2440_DCON_CH3_PCMOUT (6 << 24) -#endif /* CONFIG_CPU_S3C2440 */ - -#ifdef CONFIG_CPU_S3C2412 - -#define S3C2412_DMAREQSEL_SRC(x) ((x) << 1) - -#define S3C2412_DMAREQSEL_HW (1) - -#define S3C2412_DMAREQSEL_SPI0TX S3C2412_DMAREQSEL_SRC(0) -#define S3C2412_DMAREQSEL_SPI0RX S3C2412_DMAREQSEL_SRC(1) -#define S3C2412_DMAREQSEL_SPI1TX S3C2412_DMAREQSEL_SRC(2) -#define S3C2412_DMAREQSEL_SPI1RX S3C2412_DMAREQSEL_SRC(3) -#define S3C2412_DMAREQSEL_I2STX S3C2412_DMAREQSEL_SRC(4) -#define S3C2412_DMAREQSEL_I2SRX S3C2412_DMAREQSEL_SRC(5) -#define S3C2412_DMAREQSEL_TIMER S3C2412_DMAREQSEL_SRC(9) -#define S3C2412_DMAREQSEL_SDI S3C2412_DMAREQSEL_SRC(10) -#define S3C2412_DMAREQSEL_USBEP1 S3C2412_DMAREQSEL_SRC(13) -#define S3C2412_DMAREQSEL_USBEP2 S3C2412_DMAREQSEL_SRC(14) -#define S3C2412_DMAREQSEL_USBEP3 S3C2412_DMAREQSEL_SRC(15) -#define S3C2412_DMAREQSEL_USBEP4 S3C2412_DMAREQSEL_SRC(16) -#define S3C2412_DMAREQSEL_XDREQ0 S3C2412_DMAREQSEL_SRC(17) -#define S3C2412_DMAREQSEL_XDREQ1 S3C2412_DMAREQSEL_SRC(18) -#define S3C2412_DMAREQSEL_UART0_0 S3C2412_DMAREQSEL_SRC(19) -#define S3C2412_DMAREQSEL_UART0_1 S3C2412_DMAREQSEL_SRC(20) -#define S3C2412_DMAREQSEL_UART1_0 S3C2412_DMAREQSEL_SRC(21) -#define S3C2412_DMAREQSEL_UART1_1 S3C2412_DMAREQSEL_SRC(22) -#define S3C2412_DMAREQSEL_UART2_0 S3C2412_DMAREQSEL_SRC(23) -#define S3C2412_DMAREQSEL_UART2_1 S3C2412_DMAREQSEL_SRC(24) -#endif /* CONFIG_CPU_S3C2412 */ - -#if defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2443) - -#define S3C2443_DMAREQSEL_SRC(x) ((x) << 1) - -#define S3C2443_DMAREQSEL_HW (1) - -#define S3C2443_DMAREQSEL_SPI0TX S3C2443_DMAREQSEL_SRC(0) -#define S3C2443_DMAREQSEL_SPI0RX S3C2443_DMAREQSEL_SRC(1) -#define S3C2443_DMAREQSEL_SPI1TX S3C2443_DMAREQSEL_SRC(2) -#define S3C2443_DMAREQSEL_SPI1RX S3C2443_DMAREQSEL_SRC(3) -#define S3C2443_DMAREQSEL_I2STX S3C2443_DMAREQSEL_SRC(4) -#define S3C2443_DMAREQSEL_I2SRX S3C2443_DMAREQSEL_SRC(5) -#define S3C2443_DMAREQSEL_TIMER S3C2443_DMAREQSEL_SRC(9) -#define S3C2443_DMAREQSEL_SDI S3C2443_DMAREQSEL_SRC(10) -#define S3C2443_DMAREQSEL_XDREQ0 S3C2443_DMAREQSEL_SRC(17) -#define S3C2443_DMAREQSEL_XDREQ1 S3C2443_DMAREQSEL_SRC(18) -#define S3C2443_DMAREQSEL_UART0_0 S3C2443_DMAREQSEL_SRC(19) -#define S3C2443_DMAREQSEL_UART0_1 S3C2443_DMAREQSEL_SRC(20) -#define S3C2443_DMAREQSEL_UART1_0 S3C2443_DMAREQSEL_SRC(21) -#define S3C2443_DMAREQSEL_UART1_1 S3C2443_DMAREQSEL_SRC(22) -#define S3C2443_DMAREQSEL_UART2_0 S3C2443_DMAREQSEL_SRC(23) -#define S3C2443_DMAREQSEL_UART2_1 S3C2443_DMAREQSEL_SRC(24) -#define S3C2443_DMAREQSEL_UART3_0 S3C2443_DMAREQSEL_SRC(25) -#define S3C2443_DMAREQSEL_UART3_1 S3C2443_DMAREQSEL_SRC(26) -#define S3C2443_DMAREQSEL_PCMOUT S3C2443_DMAREQSEL_SRC(27) -#define S3C2443_DMAREQSEL_PCMIN S3C2443_DMAREQSEL_SRC(28) -#define S3C2443_DMAREQSEL_MICIN S3C2443_DMAREQSEL_SRC(29) -#endif /* CONFIG_CPU_S3C2443 */ - -#endif /* __ASM_PLAT_REGS_DMA_H */ diff --git a/arch/arm/plat-samsung/s3c-dma-ops.c b/arch/arm/plat-samsung/s3c-dma-ops.c deleted file mode 100644 index 98b10ba67dc7..000000000000 --- a/arch/arm/plat-samsung/s3c-dma-ops.c +++ /dev/null @@ -1,146 +0,0 @@ -/* linux/arch/arm/plat-samsung/s3c-dma-ops.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Samsung S3C-DMA Operations - * - * 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/errno.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/export.h> - -#include <mach/dma.h> - -struct cb_data { - void (*fp) (void *); - void *fp_param; - unsigned ch; - struct list_head node; -}; - -static LIST_HEAD(dma_list); - -static void s3c_dma_cb(struct s3c2410_dma_chan *channel, void *param, - int size, enum s3c2410_dma_buffresult res) -{ - struct cb_data *data = param; - - data->fp(data->fp_param); -} - -static unsigned s3c_dma_request(enum dma_ch dma_ch, - struct samsung_dma_req *param, - struct device *dev, char *ch_name) -{ - struct cb_data *data; - - if (s3c2410_dma_request(dma_ch, param->client, NULL) < 0) { - s3c2410_dma_free(dma_ch, param->client); - return 0; - } - - if (param->cap == DMA_CYCLIC) - s3c2410_dma_setflags(dma_ch, S3C2410_DMAF_CIRCULAR); - - data = kzalloc(sizeof(struct cb_data), GFP_KERNEL); - data->ch = dma_ch; - list_add_tail(&data->node, &dma_list); - - return (unsigned)dma_ch; -} - -static int s3c_dma_release(unsigned ch, void *param) -{ - struct cb_data *data; - - list_for_each_entry(data, &dma_list, node) - if (data->ch == ch) - break; - list_del(&data->node); - - s3c2410_dma_free(ch, param); - kfree(data); - - return 0; -} - -static int s3c_dma_config(unsigned ch, struct samsung_dma_config *param) -{ - s3c2410_dma_devconfig(ch, param->direction, param->fifo); - s3c2410_dma_config(ch, param->width); - - return 0; -} - -static int s3c_dma_prepare(unsigned ch, struct samsung_dma_prep *param) -{ - struct cb_data *data; - dma_addr_t pos = param->buf; - dma_addr_t end = param->buf + param->len; - - list_for_each_entry(data, &dma_list, node) - if (data->ch == ch) - break; - - if (!data->fp) { - s3c2410_dma_set_buffdone_fn(ch, s3c_dma_cb); - data->fp = param->fp; - data->fp_param = param->fp_param; - } - - if (param->cap != DMA_CYCLIC) { - s3c2410_dma_enqueue(ch, (void *)data, param->buf, param->len); - return 0; - } - - while (pos < end) { - s3c2410_dma_enqueue(ch, (void *)data, pos, param->period); - pos += param->period; - } - - return 0; -} - -static inline int s3c_dma_trigger(unsigned ch) -{ - return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_START); -} - -static inline int s3c_dma_started(unsigned ch) -{ - return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_STARTED); -} - -static inline int s3c_dma_flush(unsigned ch) -{ - return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_FLUSH); -} - -static inline int s3c_dma_stop(unsigned ch) -{ - return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_STOP); -} - -static struct samsung_dma_ops s3c_dma_ops = { - .request = s3c_dma_request, - .release = s3c_dma_release, - .config = s3c_dma_config, - .prepare = s3c_dma_prepare, - .trigger = s3c_dma_trigger, - .started = s3c_dma_started, - .flush = s3c_dma_flush, - .stop = s3c_dma_stop, -}; - -void *s3c_dma_get_ops(void) -{ - return &s3c_dma_ops; -} -EXPORT_SYMBOL(s3c_dma_get_ops); |