1#
2# DMA engine configuration
3#
4
5menuconfig DMADEVICES
6	bool "DMA Engine support"
7	depends on HAS_DMA
8	help
9	  DMA engines can do asynchronous data transfers without
10	  involving the host CPU.  Currently, this framework can be
11	  used to offload memory copies in the network stack and
12	  RAID operations in the MD driver.  This menu only presents
13	  DMA Device drivers supported by the configured arch, it may
14	  be empty in some cases.
15
16config DMADEVICES_DEBUG
17        bool "DMA Engine debugging"
18        depends on DMADEVICES != n
19        help
20          This is an option for use by developers; most people should
21          say N here.  This enables DMA engine core and driver debugging.
22
23config DMADEVICES_VDEBUG
24        bool "DMA Engine verbose debugging"
25        depends on DMADEVICES_DEBUG != n
26        help
27          This is an option for use by developers; most people should
28          say N here.  This enables deeper (more verbose) debugging of
29          the DMA engine core and drivers.
30
31
32if DMADEVICES
33
34comment "DMA Devices"
35
36config INTEL_MID_DMAC
37	tristate "Intel MID DMA support for Peripheral DMA controllers"
38	depends on PCI && X86
39	select DMA_ENGINE
40	default n
41	help
42	  Enable support for the Intel(R) MID DMA engine present
43	  in Intel MID chipsets.
44
45	  Say Y here if you have such a chipset.
46
47	  If unsure, say N.
48
49config ASYNC_TX_ENABLE_CHANNEL_SWITCH
50	bool
51
52config AMBA_PL08X
53	bool "ARM PrimeCell PL080 or PL081 support"
54	depends on ARM_AMBA && EXPERIMENTAL
55	select DMA_ENGINE
56	help
57	  Platform has a PL08x DMAC device
58	  which can provide DMA engine support
59
60config INTEL_IOATDMA
61	tristate "Intel I/OAT DMA support"
62	depends on PCI && X86
63	select DMA_ENGINE
64	select DCA
65	select ASYNC_TX_DISABLE_PQ_VAL_DMA
66	select ASYNC_TX_DISABLE_XOR_VAL_DMA
67	help
68	  Enable support for the Intel(R) I/OAT DMA engine present
69	  in recent Intel Xeon chipsets.
70
71	  Say Y here if you have such a chipset.
72
73	  If unsure, say N.
74
75config INTEL_IOP_ADMA
76	tristate "Intel IOP ADMA support"
77	depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
78	select DMA_ENGINE
79	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
80	help
81	  Enable support for the Intel(R) IOP Series RAID engines.
82
83config DW_DMAC
84	tristate "Synopsys DesignWare AHB DMA support"
85	depends on HAVE_CLK
86	select DMA_ENGINE
87	default y if CPU_AT32AP7000
88	help
89	  Support the Synopsys DesignWare AHB DMA controller.  This
90	  can be integrated in chips such as the Atmel AT32ap7000.
91
92config AT_HDMAC
93	tristate "Atmel AHB DMA support"
94	depends on ARCH_AT91
95	select DMA_ENGINE
96	help
97	  Support the Atmel AHB DMA controller.
98
99config FSL_DMA
100	tristate "Freescale Elo and Elo Plus DMA support"
101	depends on FSL_SOC
102	select DMA_ENGINE
103	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
104	---help---
105	  Enable support for the Freescale Elo and Elo Plus DMA controllers.
106	  The Elo is the DMA controller on some 82xx and 83xx parts, and the
107	  Elo Plus is the DMA controller on 85xx and 86xx parts.
108
109config MPC512X_DMA
110	tristate "Freescale MPC512x built-in DMA engine support"
111	depends on PPC_MPC512x || PPC_MPC831x
112	select DMA_ENGINE
113	---help---
114	  Enable support for the Freescale MPC512x built-in DMA engine.
115
116config MV_XOR
117	bool "Marvell XOR engine support"
118	depends on PLAT_ORION
119	select DMA_ENGINE
120	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
121	---help---
122	  Enable support for the Marvell XOR engine.
123
124config MX3_IPU
125	bool "MX3x Image Processing Unit support"
126	depends on ARCH_MXC
127	select DMA_ENGINE
128	default y
129	help
130	  If you plan to use the Image Processing unit in the i.MX3x, say
131	  Y here. If unsure, select Y.
132
133config MX3_IPU_IRQS
134	int "Number of dynamically mapped interrupts for IPU"
135	depends on MX3_IPU
136	range 2 137
137	default 4
138	help
139	  Out of 137 interrupt sources on i.MX31 IPU only very few are used.
140	  To avoid bloating the irq_desc[] array we allocate a sufficient
141	  number of IRQ slots and map them dynamically to specific sources.
142
143config TXX9_DMAC
144	tristate "Toshiba TXx9 SoC DMA support"
145	depends on MACH_TX49XX || MACH_TX39XX
146	select DMA_ENGINE
147	help
148	  Support the TXx9 SoC internal DMA controller.  This can be
149	  integrated in chips such as the Toshiba TX4927/38/39.
150
151config SH_DMAE
152	tristate "Renesas SuperH DMAC support"
153	depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
154	depends on !SH_DMA_API
155	select DMA_ENGINE
156	help
157	  Enable support for the Renesas SuperH DMA controllers.
158
159config COH901318
160	bool "ST-Ericsson COH901318 DMA support"
161	select DMA_ENGINE
162	depends on ARCH_U300
163	help
164	  Enable support for ST-Ericsson COH 901 318 DMA.
165
166config STE_DMA40
167	bool "ST-Ericsson DMA40 support"
168	depends on ARCH_U8500
169	select DMA_ENGINE
170	help
171	  Support for ST-Ericsson DMA40 controller
172
173config AMCC_PPC440SPE_ADMA
174	tristate "AMCC PPC440SPe ADMA support"
175	depends on 440SPe || 440SP
176	select DMA_ENGINE
177	select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
178	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
179	help
180	  Enable support for the AMCC PPC440SPe RAID engines.
181
182config TIMB_DMA
183	tristate "Timberdale FPGA DMA support"
184	depends on MFD_TIMBERDALE || HAS_IOMEM
185	select DMA_ENGINE
186	help
187	  Enable support for the Timberdale FPGA DMA engine.
188
189config SIRF_DMA
190	tristate "CSR SiRFprimaII DMA support"
191	depends on ARCH_PRIMA2
192	select DMA_ENGINE
193	help
194	  Enable support for the CSR SiRFprimaII DMA engine.
195
196config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
197	bool
198
199config PL330_DMA
200	tristate "DMA API Driver for PL330"
201	select DMA_ENGINE
202	depends on ARM_AMBA
203	help
204	  Select if your platform has one or more PL330 DMACs.
205	  You need to provide platform specific settings via
206	  platform_data for a dma-pl330 device.
207
208config PCH_DMA
209	tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
210	depends on PCI && X86
211	select DMA_ENGINE
212	help
213	  Enable support for Intel EG20T PCH DMA engine.
214
215	  This driver also can be used for LAPIS Semiconductor IOH(Input/
216	  Output Hub), ML7213, ML7223 and ML7831.
217	  ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
218	  for MP(Media Phone) use and ML7831 IOH is for general purpose use.
219	  ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
220	  ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
221
222config IMX_SDMA
223	tristate "i.MX SDMA support"
224	depends on ARCH_MXC
225	select DMA_ENGINE
226	help
227	  Support the i.MX SDMA engine. This engine is integrated into
228	  Freescale i.MX25/31/35/51/53 chips.
229
230config IMX_DMA
231	tristate "i.MX DMA support"
232	depends on ARCH_MXC
233	select DMA_ENGINE
234	help
235	  Support the i.MX DMA engine. This engine is integrated into
236	  Freescale i.MX1/21/27 chips.
237
238config MXS_DMA
239	bool "MXS DMA support"
240	depends on SOC_IMX23 || SOC_IMX28
241	select DMA_ENGINE
242	help
243	  Support the MXS DMA engine. This engine including APBH-DMA
244	  and APBX-DMA is integrated into Freescale i.MX23/28 chips.
245
246config EP93XX_DMA
247	bool "Cirrus Logic EP93xx DMA support"
248	depends on ARCH_EP93XX
249	select DMA_ENGINE
250	help
251	  Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
252
253config DMA_SA11X0
254	tristate "SA-11x0 DMA support"
255	depends on ARCH_SA1100
256	select DMA_ENGINE
257	help
258	  Support the DMA engine found on Intel StrongARM SA-1100 and
259	  SA-1110 SoCs.  This DMA engine can only be used with on-chip
260	  devices.
261
262config DMA_ENGINE
263	bool
264
265comment "DMA Clients"
266	depends on DMA_ENGINE
267
268config NET_DMA
269	bool "Network: TCP receive copy offload"
270	depends on DMA_ENGINE && NET
271	default (INTEL_IOATDMA || FSL_DMA)
272	depends on BROKEN
273	help
274	  This enables the use of DMA engines in the network stack to
275	  offload receive copy-to-user operations, freeing CPU cycles.
276
277	  Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
278	  say N.
279
280config ASYNC_TX_DMA
281	bool "Async_tx: Offload support for the async_tx api"
282	depends on DMA_ENGINE
283	help
284	  This allows the async_tx api to take advantage of offload engines for
285	  memcpy, memset, xor, and raid6 p+q operations.  If your platform has
286	  a dma engine that can perform raid operations and you have enabled
287	  MD_RAID456 say Y.
288
289	  If unsure, say N.
290
291config DMATEST
292	tristate "DMA Test client"
293	depends on DMA_ENGINE
294	help
295	  Simple DMA test client. Say N unless you're debugging a
296	  DMA Device driver.
297
298endif
299