diff options
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-imx/include/mach/dma-v1.h | 8 | ||||
-rw-r--r-- | arch/arm/mach-ux500/devices-db8500.c | 13 | ||||
-rw-r--r-- | arch/arm/plat-mxc/include/mach/dma.h | 67 | ||||
-rw-r--r-- | arch/arm/plat-mxc/include/mach/sdma.h | 17 | ||||
-rw-r--r-- | arch/arm/plat-nomadik/include/plat/ste_dma40.h | 134 |
5 files changed, 147 insertions, 92 deletions
diff --git a/arch/arm/mach-imx/include/mach/dma-v1.h b/arch/arm/mach-imx/include/mach/dma-v1.h index 287431c..ac6fd71 100644 --- a/arch/arm/mach-imx/include/mach/dma-v1.h +++ b/arch/arm/mach-imx/include/mach/dma-v1.h @@ -27,6 +27,8 @@ #define imx_has_dma_v1() (cpu_is_mx1() || cpu_is_mx21() || cpu_is_mx27()) +#include <mach/dma.h> + #define IMX_DMA_CHANNELS 16 #define DMA_MODE_READ 0 @@ -96,12 +98,6 @@ int imx_dma_request(int channel, const char *name); void imx_dma_free(int channel); -enum imx_dma_prio { - DMA_PRIO_HIGH = 0, - DMA_PRIO_MEDIUM = 1, - DMA_PRIO_LOW = 2 -}; - int imx_dma_request_by_prio(const char *name, enum imx_dma_prio prio); #endif /* __MACH_DMA_V1_H__ */ diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c index cbbe69a..4a94be3 100644 --- a/arch/arm/mach-ux500/devices-db8500.c +++ b/arch/arm/mach-ux500/devices-db8500.c @@ -208,35 +208,25 @@ static struct resource dma40_resources[] = { /* Default configuration for physcial memcpy */ struct stedma40_chan_cfg dma40_memcpy_conf_phy = { - .channel_type = (STEDMA40_CHANNEL_IN_PHY_MODE | - STEDMA40_LOW_PRIORITY_CHANNEL | - STEDMA40_PCHAN_BASIC_MODE), + .mode = STEDMA40_MODE_PHYSICAL, .dir = STEDMA40_MEM_TO_MEM, - .src_info.endianess = STEDMA40_LITTLE_ENDIAN, .src_info.data_width = STEDMA40_BYTE_WIDTH, .src_info.psize = STEDMA40_PSIZE_PHY_1, .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL, - .dst_info.endianess = STEDMA40_LITTLE_ENDIAN, .dst_info.data_width = STEDMA40_BYTE_WIDTH, .dst_info.psize = STEDMA40_PSIZE_PHY_1, .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL, }; /* Default configuration for logical memcpy */ struct stedma40_chan_cfg dma40_memcpy_conf_log = { - .channel_type = (STEDMA40_CHANNEL_IN_LOG_MODE | - STEDMA40_LOW_PRIORITY_CHANNEL | - STEDMA40_LCHAN_SRC_LOG_DST_LOG | - STEDMA40_NO_TIM_FOR_LINK), .dir = STEDMA40_MEM_TO_MEM, - .src_info.endianess = STEDMA40_LITTLE_ENDIAN, .src_info.data_width = STEDMA40_BYTE_WIDTH, .src_info.psize = STEDMA40_PSIZE_LOG_1, .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL, - .dst_info.endianess = STEDMA40_LITTLE_ENDIAN, .dst_info.data_width = STEDMA40_BYTE_WIDTH, .dst_info.psize = STEDMA40_PSIZE_LOG_1, .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL, @@ -269,7 +259,6 @@ static struct stedma40_platform_data dma40_plat_data = { .memcpy_len = ARRAY_SIZE(dma40_memcpy_event), .memcpy_conf_phy = &dma40_memcpy_conf_phy, .memcpy_conf_log = &dma40_memcpy_conf_log, - .llis_per_log = 8, .disabled_channels = {-1}, }; diff --git a/arch/arm/plat-mxc/include/mach/dma.h b/arch/arm/plat-mxc/include/mach/dma.h new file mode 100644 index 0000000..ef77515 --- /dev/null +++ b/arch/arm/plat-mxc/include/mach/dma.h @@ -0,0 +1,67 @@ +/* + * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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_ARCH_MXC_DMA_H__ +#define __ASM_ARCH_MXC_DMA_H__ + +#include <linux/scatterlist.h> +#include <linux/device.h> +#include <linux/dmaengine.h> + +/* + * This enumerates peripheral types. Used for SDMA. + */ +enum sdma_peripheral_type { + IMX_DMATYPE_SSI, /* MCU domain SSI */ + IMX_DMATYPE_SSI_SP, /* Shared SSI */ + IMX_DMATYPE_MMC, /* MMC */ + IMX_DMATYPE_SDHC, /* SDHC */ + IMX_DMATYPE_UART, /* MCU domain UART */ + IMX_DMATYPE_UART_SP, /* Shared UART */ + IMX_DMATYPE_FIRI, /* FIRI */ + IMX_DMATYPE_CSPI, /* MCU domain CSPI */ + IMX_DMATYPE_CSPI_SP, /* Shared CSPI */ + IMX_DMATYPE_SIM, /* SIM */ + IMX_DMATYPE_ATA, /* ATA */ + IMX_DMATYPE_CCM, /* CCM */ + IMX_DMATYPE_EXT, /* External peripheral */ + IMX_DMATYPE_MSHC, /* Memory Stick Host Controller */ + IMX_DMATYPE_MSHC_SP, /* Shared Memory Stick Host Controller */ + IMX_DMATYPE_DSP, /* DSP */ + IMX_DMATYPE_MEMORY, /* Memory */ + IMX_DMATYPE_FIFO_MEMORY,/* FIFO type Memory */ + IMX_DMATYPE_SPDIF, /* SPDIF */ + IMX_DMATYPE_IPU_MEMORY, /* IPU Memory */ + IMX_DMATYPE_ASRC, /* ASRC */ + IMX_DMATYPE_ESAI, /* ESAI */ +}; + +enum imx_dma_prio { + DMA_PRIO_HIGH = 0, + DMA_PRIO_MEDIUM = 1, + DMA_PRIO_LOW = 2 +}; + +struct imx_dma_data { + int dma_request; /* DMA request line */ + enum sdma_peripheral_type peripheral_type; + int priority; +}; + +static inline int imx_dma_is_ipu(struct dma_chan *chan) +{ + return !strcmp(dev_name(chan->device->dev), "ipu-core"); +} + +static inline int imx_dma_is_general_purpose(struct dma_chan *chan) +{ + return !strcmp(dev_name(chan->device->dev), "imx-sdma") || + !strcmp(dev_name(chan->device->dev), "imx-dma"); +} + +#endif diff --git a/arch/arm/plat-mxc/include/mach/sdma.h b/arch/arm/plat-mxc/include/mach/sdma.h new file mode 100644 index 0000000..9be1122 --- /dev/null +++ b/arch/arm/plat-mxc/include/mach/sdma.h @@ -0,0 +1,17 @@ +#ifndef __MACH_MXC_SDMA_H__ +#define __MACH_MXC_SDMA_H__ + +/** + * struct sdma_platform_data - platform specific data for SDMA engine + * + * @sdma_version The version of this SDMA engine + * @cpu_name used to generate the firmware name + * @to_version CPU Tape out version + */ +struct sdma_platform_data { + int sdma_version; + char *cpu_name; + int to_version; +}; + +#endif /* __MACH_MXC_SDMA_H__ */ diff --git a/arch/arm/plat-nomadik/include/plat/ste_dma40.h b/arch/arm/plat-nomadik/include/plat/ste_dma40.h index 93a8126..74b62f1 100644 --- a/arch/arm/plat-nomadik/include/plat/ste_dma40.h +++ b/arch/arm/plat-nomadik/include/plat/ste_dma40.h @@ -1,10 +1,8 @@ /* - * arch/arm/plat-nomadik/include/plat/ste_dma40.h - * - * Copyright (C) ST-Ericsson 2007-2010 + * Copyright (C) ST-Ericsson SA 2007-2010 + * Author: Per Forlin <per.forlin@stericsson.com> for ST-Ericsson + * Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson * License terms: GNU General Public License (GPL) version 2 - * Author: Per Friden <per.friden@stericsson.com> - * Author: Jonas Aaberg <jonas.aberg@stericsson.com> */ @@ -19,37 +17,20 @@ #define STEDMA40_DEV_DST_MEMORY (-1) #define STEDMA40_DEV_SRC_MEMORY (-1) -/* - * Description of bitfields of channel_type variable is available in - * the info structure. - */ +enum stedma40_mode { + STEDMA40_MODE_LOGICAL = 0, + STEDMA40_MODE_PHYSICAL, + STEDMA40_MODE_OPERATION, +}; -/* Priority */ -#define STEDMA40_INFO_PRIO_TYPE_POS 2 -#define STEDMA40_HIGH_PRIORITY_CHANNEL (0x1 << STEDMA40_INFO_PRIO_TYPE_POS) -#define STEDMA40_LOW_PRIORITY_CHANNEL (0x2 << STEDMA40_INFO_PRIO_TYPE_POS) - -/* Mode */ -#define STEDMA40_INFO_CH_MODE_TYPE_POS 6 -#define STEDMA40_CHANNEL_IN_PHY_MODE (0x1 << STEDMA40_INFO_CH_MODE_TYPE_POS) -#define STEDMA40_CHANNEL_IN_LOG_MODE (0x2 << STEDMA40_INFO_CH_MODE_TYPE_POS) -#define STEDMA40_CHANNEL_IN_OPER_MODE (0x3 << STEDMA40_INFO_CH_MODE_TYPE_POS) - -/* Mode options */ -#define STEDMA40_INFO_CH_MODE_OPT_POS 8 -#define STEDMA40_PCHAN_BASIC_MODE (0x1 << STEDMA40_INFO_CH_MODE_OPT_POS) -#define STEDMA40_PCHAN_MODULO_MODE (0x2 << STEDMA40_INFO_CH_MODE_OPT_POS) -#define STEDMA40_PCHAN_DOUBLE_DST_MODE (0x3 << STEDMA40_INFO_CH_MODE_OPT_POS) -#define STEDMA40_LCHAN_SRC_PHY_DST_LOG (0x1 << STEDMA40_INFO_CH_MODE_OPT_POS) -#define STEDMA40_LCHAN_SRC_LOG_DST_PHS (0x2 << STEDMA40_INFO_CH_MODE_OPT_POS) -#define STEDMA40_LCHAN_SRC_LOG_DST_LOG (0x3 << STEDMA40_INFO_CH_MODE_OPT_POS) - -/* Interrupt */ -#define STEDMA40_INFO_TIM_POS 10 -#define STEDMA40_NO_TIM_FOR_LINK (0x0 << STEDMA40_INFO_TIM_POS) -#define STEDMA40_TIM_FOR_LINK (0x1 << STEDMA40_INFO_TIM_POS) - -/* End of channel_type configuration */ +enum stedma40_mode_opt { + STEDMA40_PCHAN_BASIC_MODE = 0, + STEDMA40_LCHAN_SRC_LOG_DST_LOG = 0, + STEDMA40_PCHAN_MODULO_MODE, + STEDMA40_PCHAN_DOUBLE_DST_MODE, + STEDMA40_LCHAN_SRC_PHY_DST_LOG, + STEDMA40_LCHAN_SRC_LOG_DST_PHY, +}; #define STEDMA40_ESIZE_8_BIT 0x0 #define STEDMA40_ESIZE_16_BIT 0x1 @@ -72,16 +53,14 @@ #define STEDMA40_PSIZE_LOG_8 STEDMA40_PSIZE_PHY_8 #define STEDMA40_PSIZE_LOG_16 STEDMA40_PSIZE_PHY_16 +/* Maximum number of possible physical channels */ +#define STEDMA40_MAX_PHYS 32 + enum stedma40_flow_ctrl { STEDMA40_NO_FLOW_CTRL, STEDMA40_FLOW_CTRL, }; -enum stedma40_endianess { - STEDMA40_LITTLE_ENDIAN, - STEDMA40_BIG_ENDIAN -}; - enum stedma40_periph_data_width { STEDMA40_BYTE_WIDTH = STEDMA40_ESIZE_8_BIT, STEDMA40_HALFWORD_WIDTH = STEDMA40_ESIZE_16_BIT, @@ -89,15 +68,8 @@ enum stedma40_periph_data_width { STEDMA40_DOUBLEWORD_WIDTH = STEDMA40_ESIZE_64_BIT }; -struct stedma40_half_channel_info { - enum stedma40_endianess endianess; - enum stedma40_periph_data_width data_width; - int psize; - enum stedma40_flow_ctrl flow_ctrl; -}; - enum stedma40_xfer_dir { - STEDMA40_MEM_TO_MEM, + STEDMA40_MEM_TO_MEM = 1, STEDMA40_MEM_TO_PERIPH, STEDMA40_PERIPH_TO_MEM, STEDMA40_PERIPH_TO_PERIPH @@ -105,18 +77,31 @@ enum stedma40_xfer_dir { /** + * struct stedma40_chan_cfg - dst/src channel configuration + * + * @big_endian: true if the src/dst should be read as big endian + * @data_width: Data width of the src/dst hardware + * @p_size: Burst size + * @flow_ctrl: Flow control on/off. + */ +struct stedma40_half_channel_info { + bool big_endian; + enum stedma40_periph_data_width data_width; + int psize; + enum stedma40_flow_ctrl flow_ctrl; +}; + +/** * struct stedma40_chan_cfg - Structure to be filled by client drivers. * * @dir: MEM 2 MEM, PERIPH 2 MEM , MEM 2 PERIPH, PERIPH 2 PERIPH - * @channel_type: priority, mode, mode options and interrupt configuration. + * @high_priority: true if high-priority + * @mode: channel mode: physical, logical, or operation + * @mode_opt: options for the chosen channel mode * @src_dev_type: Src device type * @dst_dev_type: Dst device type * @src_info: Parameters for dst half channel * @dst_info: Parameters for dst half channel - * @pre_transfer_data: Data to be passed on to the pre_transfer() function. - * @pre_transfer: Callback used if needed before preparation of transfer. - * Only called if device is set. size of bytes to transfer - * (in case of multiple element transfer size is size of the first element). * * * This structure has to be filled by the client drivers. @@ -125,15 +110,13 @@ enum stedma40_xfer_dir { */ struct stedma40_chan_cfg { enum stedma40_xfer_dir dir; - unsigned int channel_type; + bool high_priority; + enum stedma40_mode mode; + enum stedma40_mode_opt mode_opt; int src_dev_type; int dst_dev_type; struct stedma40_half_channel_info src_info; struct stedma40_half_channel_info dst_info; - void *pre_transfer_data; - int (*pre_transfer) (struct dma_chan *chan, - void *data, - int size); }; /** @@ -146,7 +129,6 @@ struct stedma40_chan_cfg { * @memcpy_len: length of memcpy * @memcpy_conf_phy: default configuration of physical channel memcpy * @memcpy_conf_log: default configuration of logical channel memcpy - * @llis_per_log: number of max linked list items per logical channel * @disabled_channels: A vector, ending with -1, that marks physical channels * that are for different reasons not available for the driver. */ @@ -158,23 +140,10 @@ struct stedma40_platform_data { u32 memcpy_len; struct stedma40_chan_cfg *memcpy_conf_phy; struct stedma40_chan_cfg *memcpy_conf_log; - unsigned int llis_per_log; - int disabled_channels[8]; + int disabled_channels[STEDMA40_MAX_PHYS]; }; -/** - * setdma40_set_psize() - Used for changing the package size of an - * already configured dma channel. - * - * @chan: dmaengine handle - * @src_psize: new package side for src. (STEDMA40_PSIZE*) - * @src_psize: new package side for dst. (STEDMA40_PSIZE*) - * - * returns 0 on ok, otherwise negative error number. - */ -int stedma40_set_psize(struct dma_chan *chan, - int src_psize, - int dst_psize); +#ifdef CONFIG_STE_DMA40 /** * stedma40_filter() - Provides stedma40_chan_cfg to the @@ -237,4 +206,21 @@ dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan, direction, flags); } +#else +static inline bool stedma40_filter(struct dma_chan *chan, void *data) +{ + return false; +} + +static inline struct +dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan, + dma_addr_t addr, + unsigned int size, + enum dma_data_direction direction, + unsigned long flags) +{ + return NULL; +} +#endif + #endif |