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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-27 19:04:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-27 19:04:36 -0700
commite3e1288e86a07cdeb0aee5860a2dff111c6eff79 (patch)
treecd22f8051a456c9d2b95698b6fe402776a67469b /arch/arm/plat-mxc
parent9ae6d039224def926656206725ae6e89d1331417 (diff)
parent964dc256bb91e990277010a3f6dc66daa130be8b (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (48 commits) DMAENGINE: move COH901318 to arch_initcall dma: imx-dma: fix signedness bug dma/timberdale: simplify conditional ste_dma40: remove channel_type ste_dma40: remove enum for endianess ste_dma40: remove TIM_FOR_LINK option ste_dma40: move mode_opt to separate config ste_dma40: move channel mode to a separate field ste_dma40: move priority to separate field ste_dma40: add variable to indicate valid dma_cfg async_tx: make async_tx channel switching opt-in move async raid6 test to lib/Kconfig.debug dmaengine: Add Freescale i.MX1/21/27 DMA driver intel_mid_dma: change the slave interface intel_mid_dma: fix the WARN_ONs intel_mid_dma: Add sg list support to DMA driver intel_mid_dma: Allow DMAC2 to share interrupt intel_mid_dma: Allow IRQ sharing intel_mid_dma: Add runtime PM support DMAENGINE: define a dummy filter function for ste_dma40 ...
Diffstat (limited to 'arch/arm/plat-mxc')
-rw-r--r--arch/arm/plat-mxc/include/mach/dma.h67
-rw-r--r--arch/arm/plat-mxc/include/mach/sdma.h17
2 files changed, 84 insertions, 0 deletions
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__ */