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 55 select DMA_ENGINE 56 select DMA_VIRTUAL_CHANNELS 57 help 58 Platform has a PL08x DMAC device 59 which can provide DMA engine support 60 61config INTEL_IOATDMA 62 tristate "Intel I/OAT DMA support" 63 depends on PCI && X86 64 select DMA_ENGINE 65 select DCA 66 help 67 Enable support for the Intel(R) I/OAT DMA engine present 68 in recent Intel Xeon chipsets. 69 70 Say Y here if you have such a chipset. 71 72 If unsure, say N. 73 74config INTEL_IOP_ADMA 75 tristate "Intel IOP ADMA support" 76 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX 77 select DMA_ENGINE 78 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 79 help 80 Enable support for the Intel(R) IOP Series RAID engines. 81 82config DW_DMAC 83 tristate "Synopsys DesignWare AHB DMA support" 84 depends on GENERIC_HARDIRQS 85 select DMA_ENGINE 86 default y if CPU_AT32AP7000 87 help 88 Support the Synopsys DesignWare AHB DMA controller. This 89 can be integrated in chips such as the Atmel AT32ap7000. 90 91config DW_DMAC_BIG_ENDIAN_IO 92 bool "Use big endian I/O register access" 93 default y if AVR32 94 depends on DW_DMAC 95 help 96 Say yes here to use big endian I/O access when reading and writing 97 to the DMA controller registers. This is needed on some platforms, 98 like the Atmel AVR32 architecture. 99 100 If unsure, use the default setting. 101 102config AT_HDMAC 103 tristate "Atmel AHB DMA support" 104 depends on ARCH_AT91 105 select DMA_ENGINE 106 help 107 Support the Atmel AHB DMA controller. 108 109config FSL_DMA 110 tristate "Freescale Elo and Elo Plus DMA support" 111 depends on FSL_SOC 112 select DMA_ENGINE 113 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 114 ---help--- 115 Enable support for the Freescale Elo and Elo Plus DMA controllers. 116 The Elo is the DMA controller on some 82xx and 83xx parts, and the 117 Elo Plus is the DMA controller on 85xx and 86xx parts. 118 119config MPC512X_DMA 120 tristate "Freescale MPC512x built-in DMA engine support" 121 depends on PPC_MPC512x || PPC_MPC831x 122 select DMA_ENGINE 123 ---help--- 124 Enable support for the Freescale MPC512x built-in DMA engine. 125 126source "drivers/dma/bestcomm/Kconfig" 127 128config MV_XOR 129 bool "Marvell XOR engine support" 130 depends on PLAT_ORION 131 select DMA_ENGINE 132 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 133 ---help--- 134 Enable support for the Marvell XOR engine. 135 136config MX3_IPU 137 bool "MX3x Image Processing Unit support" 138 depends on ARCH_MXC 139 select DMA_ENGINE 140 default y 141 help 142 If you plan to use the Image Processing unit in the i.MX3x, say 143 Y here. If unsure, select Y. 144 145config MX3_IPU_IRQS 146 int "Number of dynamically mapped interrupts for IPU" 147 depends on MX3_IPU 148 range 2 137 149 default 4 150 help 151 Out of 137 interrupt sources on i.MX31 IPU only very few are used. 152 To avoid bloating the irq_desc[] array we allocate a sufficient 153 number of IRQ slots and map them dynamically to specific sources. 154 155config TXX9_DMAC 156 tristate "Toshiba TXx9 SoC DMA support" 157 depends on MACH_TX49XX || MACH_TX39XX 158 select DMA_ENGINE 159 help 160 Support the TXx9 SoC internal DMA controller. This can be 161 integrated in chips such as the Toshiba TX4927/38/39. 162 163config TEGRA20_APB_DMA 164 bool "NVIDIA Tegra20 APB DMA support" 165 depends on ARCH_TEGRA 166 select DMA_ENGINE 167 help 168 Support for the NVIDIA Tegra20 APB DMA controller driver. The 169 DMA controller is having multiple DMA channel which can be 170 configured for different peripherals like audio, UART, SPI, 171 I2C etc which is in APB bus. 172 This DMA controller transfers data from memory to peripheral fifo 173 or vice versa. It does not support memory to memory data transfer. 174 175source "drivers/dma/sh/Kconfig" 176 177config COH901318 178 bool "ST-Ericsson COH901318 DMA support" 179 select DMA_ENGINE 180 depends on ARCH_U300 181 help 182 Enable support for ST-Ericsson COH 901 318 DMA. 183 184config STE_DMA40 185 bool "ST-Ericsson DMA40 support" 186 depends on ARCH_U8500 187 select DMA_ENGINE 188 help 189 Support for ST-Ericsson DMA40 controller 190 191config AMCC_PPC440SPE_ADMA 192 tristate "AMCC PPC440SPe ADMA support" 193 depends on 440SPe || 440SP 194 select DMA_ENGINE 195 select ARCH_HAS_ASYNC_TX_FIND_CHANNEL 196 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 197 help 198 Enable support for the AMCC PPC440SPe RAID engines. 199 200config TIMB_DMA 201 tristate "Timberdale FPGA DMA support" 202 depends on MFD_TIMBERDALE || HAS_IOMEM 203 select DMA_ENGINE 204 help 205 Enable support for the Timberdale FPGA DMA engine. 206 207config SIRF_DMA 208 tristate "CSR SiRFprimaII/SiRFmarco DMA support" 209 depends on ARCH_SIRF 210 select DMA_ENGINE 211 help 212 Enable support for the CSR SiRFprimaII DMA engine. 213 214config TI_EDMA 215 tristate "TI EDMA support" 216 depends on ARCH_DAVINCI 217 select DMA_ENGINE 218 select DMA_VIRTUAL_CHANNELS 219 default n 220 help 221 Enable support for the TI EDMA controller. This DMA 222 engine is found on TI DaVinci and AM33xx parts. 223 224config ARCH_HAS_ASYNC_TX_FIND_CHANNEL 225 bool 226 227config PL330_DMA 228 tristate "DMA API Driver for PL330" 229 select DMA_ENGINE 230 depends on ARM_AMBA 231 help 232 Select if your platform has one or more PL330 DMACs. 233 You need to provide platform specific settings via 234 platform_data for a dma-pl330 device. 235 236config PCH_DMA 237 tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" 238 depends on PCI && X86 239 select DMA_ENGINE 240 help 241 Enable support for Intel EG20T PCH DMA engine. 242 243 This driver also can be used for LAPIS Semiconductor IOH(Input/ 244 Output Hub), ML7213, ML7223 and ML7831. 245 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 246 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 247 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 248 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 249 250config IMX_SDMA 251 tristate "i.MX SDMA support" 252 depends on ARCH_MXC 253 select DMA_ENGINE 254 help 255 Support the i.MX SDMA engine. This engine is integrated into 256 Freescale i.MX25/31/35/51/53 chips. 257 258config IMX_DMA 259 tristate "i.MX DMA support" 260 depends on ARCH_MXC 261 select DMA_ENGINE 262 help 263 Support the i.MX DMA engine. This engine is integrated into 264 Freescale i.MX1/21/27 chips. 265 266config MXS_DMA 267 bool "MXS DMA support" 268 depends on SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q 269 select STMP_DEVICE 270 select DMA_ENGINE 271 help 272 Support the MXS DMA engine. This engine including APBH-DMA 273 and APBX-DMA is integrated into Freescale i.MX23/28 chips. 274 275config EP93XX_DMA 276 bool "Cirrus Logic EP93xx DMA support" 277 depends on ARCH_EP93XX 278 select DMA_ENGINE 279 help 280 Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller. 281 282config DMA_SA11X0 283 tristate "SA-11x0 DMA support" 284 depends on ARCH_SA1100 285 select DMA_ENGINE 286 select DMA_VIRTUAL_CHANNELS 287 help 288 Support the DMA engine found on Intel StrongARM SA-1100 and 289 SA-1110 SoCs. This DMA engine can only be used with on-chip 290 devices. 291 292config MMP_TDMA 293 bool "MMP Two-Channel DMA support" 294 depends on ARCH_MMP 295 select DMA_ENGINE 296 help 297 Support the MMP Two-Channel DMA engine. 298 This engine used for MMP Audio DMA and pxa910 SQU. 299 300 Say Y here if you enabled MMP ADMA, otherwise say N. 301 302config DMA_OMAP 303 tristate "OMAP DMA support" 304 depends on ARCH_OMAP 305 select DMA_ENGINE 306 select DMA_VIRTUAL_CHANNELS 307 308config MMP_PDMA 309 bool "MMP PDMA support" 310 depends on (ARCH_MMP || ARCH_PXA) 311 select DMA_ENGINE 312 help 313 Support the MMP PDMA engine for PXA and MMP platfrom. 314 315config DMA_ENGINE 316 bool 317 318config DMA_VIRTUAL_CHANNELS 319 tristate 320 321config DMA_ACPI 322 def_bool y 323 depends on ACPI 324 325config DMA_OF 326 def_bool y 327 depends on OF 328 329comment "DMA Clients" 330 depends on DMA_ENGINE 331 332config NET_DMA 333 bool "Network: TCP receive copy offload" 334 depends on DMA_ENGINE && NET 335 default (INTEL_IOATDMA || FSL_DMA) 336 help 337 This enables the use of DMA engines in the network stack to 338 offload receive copy-to-user operations, freeing CPU cycles. 339 340 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise 341 say N. 342 343config ASYNC_TX_DMA 344 bool "Async_tx: Offload support for the async_tx api" 345 depends on DMA_ENGINE 346 help 347 This allows the async_tx api to take advantage of offload engines for 348 memcpy, memset, xor, and raid6 p+q operations. If your platform has 349 a dma engine that can perform raid operations and you have enabled 350 MD_RAID456 say Y. 351 352 If unsure, say N. 353 354config DMATEST 355 tristate "DMA Test client" 356 depends on DMA_ENGINE 357 help 358 Simple DMA test client. Say N unless you're debugging a 359 DMA Device driver. 360 361endif 362