6 files changed, 127 insertions, 181 deletions

diff --git a/arch/arm/mach-imx/include/mach/dma-v1.h b/arch/arm/mach-imx/include/mach/dma-v1.h
index 287431cc13e5..ac6fd713828a 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 9280d2561111..58b3e723b183 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -193,7 +193,6 @@ 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 000000000000..ef7751546f5f
--- /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 000000000000..9be112227ac4
--- /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 5fbde4b8dc12..3dd42551de04 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>
  */
 
 
@@ -73,6 +71,9 @@
 #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,
@@ -90,15 +91,8 @@ 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
@@ -106,6 +100,21 @@ enum stedma40_xfer_dir {
 
 
 /**
+ * struct stedma40_chan_cfg - dst/src channel configuration
+ *
+ * @endianess: Endianess of the src/dst hardware
+ * @data_width: Data width of the src/dst hardware
+ * @p_size: Burst size
+ * @flow_ctrl: Flow control on/off.
+ */
+struct stedma40_half_channel_info {
+        enum stedma40_endianess endianess;
+        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
@@ -114,10 +123,6 @@ enum stedma40_xfer_dir {
  * @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.
@@ -131,10 +136,6 @@ struct stedma40_chan_cfg {
         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);
 };
 
 /**
@@ -147,7 +148,6 @@ 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.
  */
@@ -159,23 +159,10 @@ 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
@@ -238,4 +225,21 @@ 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
diff --git a/arch/powerpc/include/asm/fsldma.h b/arch/powerpc/include/asm/fsldma.h
deleted file mode 100644
index debc5ed96d6e..000000000000
--- a/arch/powerpc/include/asm/fsldma.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Freescale MPC83XX / MPC85XX DMA Controller
- *
- * Copyright (c) 2009 Ira W. Snyder <iws@ovro.caltech.edu>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#ifndef __ARCH_POWERPC_ASM_FSLDMA_H__
-#define __ARCH_POWERPC_ASM_FSLDMA_H__
-
-#include <linux/slab.h>
-#include <linux/dmaengine.h>
-
-/*
- * Definitions for the Freescale DMA controller's DMA_SLAVE implemention
- *
- * The Freescale DMA_SLAVE implementation was designed to handle many-to-many
- * transfers. An example usage would be an accelerated copy between two
- * scatterlists. Another example use would be an accelerated copy from
- * multiple non-contiguous device buffers into a single scatterlist.
- *
- * A DMA_SLAVE transaction is defined by a struct fsl_dma_slave. This
- * structure contains a list of hardware addresses that should be copied
- * to/from the scatterlist passed into device_prep_slave_sg(). The structure
- * also has some fields to enable hardware-specific features.
- */
-
-/**
- * struct fsl_dma_hw_addr
- * @entry: linked list entry
- * @address: the hardware address
- * @length: length to transfer
- *
- * Holds a single physical hardware address / length pair for use
- * with the DMAEngine DMA_SLAVE API.
- */
-struct fsl_dma_hw_addr {
-        struct list_head entry;
-
-        dma_addr_t address;
-        size_t length;
-};
-
-/**
- * struct fsl_dma_slave
- * @addresses: a linked list of struct fsl_dma_hw_addr structures
- * @request_count: value for DMA request count
- * @src_loop_size: setup and enable constant source-address DMA transfers
- * @dst_loop_size: setup and enable constant destination address DMA transfers
- * @external_start: enable externally started DMA transfers
- * @external_pause: enable externally paused DMA transfers
- *
- * Holds a list of address / length pairs for use with the DMAEngine
- * DMA_SLAVE API implementation for the Freescale DMA controller.
- */
-struct fsl_dma_slave {
-
-        /* List of hardware address/length pairs */
-        struct list_head addresses;
-
-        /* Support for extra controller features */
-        unsigned int request_count;
-        unsigned int src_loop_size;
-        unsigned int dst_loop_size;
-        bool external_start;
-        bool external_pause;
-};
-
-/**
- * fsl_dma_slave_append - add an address/length pair to a struct fsl_dma_slave
- * @slave: the &struct fsl_dma_slave to add to
- * @address: the hardware address to add
- * @length: the length of bytes to transfer from @address
- *
- * Add a hardware address/length pair to a struct fsl_dma_slave. Returns 0 on
- * success, -ERRNO otherwise.
- */
-static inline int fsl_dma_slave_append(struct fsl_dma_slave *slave,
-                                       dma_addr_t address, size_t length)
-{
-        struct fsl_dma_hw_addr *addr;
-
-        addr = kzalloc(sizeof(*addr), GFP_ATOMIC);
-        if (!addr)
-                return -ENOMEM;
-
-        INIT_LIST_HEAD(&addr->entry);
-        addr->address = address;
-        addr->length = length;
-
-        list_add_tail(&addr->entry, &slave->addresses);
-        return 0;
-}
-
-/**
- * fsl_dma_slave_free - free a struct fsl_dma_slave
- * @slave: the struct fsl_dma_slave to free
- *
- * Free a struct fsl_dma_slave and all associated address/length pairs
- */
-static inline void fsl_dma_slave_free(struct fsl_dma_slave *slave)
-{
-        struct fsl_dma_hw_addr *addr, *tmp;
-
-        if (slave) {
-                list_for_each_entry_safe(addr, tmp, &slave->addresses, entry) {
-                        list_del(&addr->entry);
-                        kfree(addr);
-                }
-
-                kfree(slave);
-        }
-}
-
-/**
- * fsl_dma_slave_alloc - allocate a struct fsl_dma_slave
- * @gfp: the flags to pass to kmalloc when allocating this structure
- *
- * Allocate a struct fsl_dma_slave for use by the DMA_SLAVE API. Returns a new
- * struct fsl_dma_slave on success, or NULL on failure.
- */
-static inline struct fsl_dma_slave *fsl_dma_slave_alloc(gfp_t gfp)
-{
-        struct fsl_dma_slave *slave;
-
-        slave = kzalloc(sizeof(*slave), gfp);
-        if (!slave)
-                return NULL;
-
-        INIT_LIST_HEAD(&slave->addresses);
-        return slave;
-}
-
-#endif /* __ARCH_POWERPC_ASM_FSLDMA_H__ */