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 select ASYNC_TX_DISABLE_PQ_VAL_DMA 67 select ASYNC_TX_DISABLE_XOR_VAL_DMA 68 help 69 Enable support for the Intel(R) I/OAT DMA engine present 70 in recent Intel Xeon chipsets. 71 72 Say Y here if you have such a chipset. 73 74 If unsure, say N. 75 76config INTEL_IOP_ADMA 77 tristate "Intel IOP ADMA support" 78 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX 79 select DMA_ENGINE 80 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 81 help 82 Enable support for the Intel(R) IOP Series RAID engines. 83 84config DW_DMAC 85 tristate "Synopsys DesignWare AHB DMA support" 86 depends on GENERIC_HARDIRQS 87 select DMA_ENGINE 88 default y if CPU_AT32AP7000 89 help 90 Support the Synopsys DesignWare AHB DMA controller. This 91 can be integrated in chips such as the Atmel AT32ap7000. 92 93config DW_DMAC_BIG_ENDIAN_IO 94 bool "Use big endian I/O register access" 95 default y if AVR32 96 depends on DW_DMAC 97 help 98 Say yes here to use big endian I/O access when reading and writing 99 to the DMA controller registers. This is needed on some platforms, 100 like the Atmel AVR32 architecture. 101 102 If unsure, use the default setting. 103 104config AT_HDMAC 105 tristate "Atmel AHB DMA support" 106 depends on ARCH_AT91 107 select DMA_ENGINE 108 help 109 Support the Atmel AHB DMA controller. 110 111config FSL_DMA 112 tristate "Freescale Elo and Elo Plus DMA support" 113 depends on FSL_SOC 114 select DMA_ENGINE 115 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 116 ---help--- 117 Enable support for the Freescale Elo and Elo Plus DMA controllers. 118 The Elo is the DMA controller on some 82xx and 83xx parts, and the 119 Elo Plus is the DMA controller on 85xx and 86xx parts. 120 121config MPC512X_DMA 122 tristate "Freescale MPC512x built-in DMA engine support" 123 depends on PPC_MPC512x || PPC_MPC831x 124 select DMA_ENGINE 125 ---help--- 126 Enable support for the Freescale MPC512x built-in DMA engine. 127 128source "drivers/dma/bestcomm/Kconfig" 129 130config MV_XOR 131 bool "Marvell XOR engine support" 132 depends on PLAT_ORION 133 select DMA_ENGINE 134 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 135 ---help--- 136 Enable support for the Marvell XOR engine. 137 138config MX3_IPU 139 bool "MX3x Image Processing Unit support" 140 depends on ARCH_MXC 141 select DMA_ENGINE 142 default y 143 help 144 If you plan to use the Image Processing unit in the i.MX3x, say 145 Y here. If unsure, select Y. 146 147config MX3_IPU_IRQS 148 int "Number of dynamically mapped interrupts for IPU" 149 depends on MX3_IPU 150 range 2 137 151 default 4 152 help 153 Out of 137 interrupt sources on i.MX31 IPU only very few are used. 154 To avoid bloating the irq_desc[] array we allocate a sufficient 155 number of IRQ slots and map them dynamically to specific sources. 156 157config TXX9_DMAC 158 tristate "Toshiba TXx9 SoC DMA support" 159 depends on MACH_TX49XX || MACH_TX39XX 160 select DMA_ENGINE 161 help 162 Support the TXx9 SoC internal DMA controller. This can be 163 integrated in chips such as the Toshiba TX4927/38/39. 164 165config TEGRA20_APB_DMA 166 bool "NVIDIA Tegra20 APB DMA support" 167 depends on ARCH_TEGRA 168 select DMA_ENGINE 169 help 170 Support for the NVIDIA Tegra20 APB DMA controller driver. The 171 DMA controller is having multiple DMA channel which can be 172 configured for different peripherals like audio, UART, SPI, 173 I2C etc which is in APB bus. 174 This DMA controller transfers data from memory to peripheral fifo 175 or vice versa. It does not support memory to memory data transfer. 176 177 178 179config SH_DMAE 180 tristate "Renesas SuperH DMAC support" 181 depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE) 182 depends on !SH_DMA_API 183 select DMA_ENGINE 184 help 185 Enable support for the Renesas SuperH DMA controllers. 186 187config COH901318 188 bool "ST-Ericsson COH901318 DMA support" 189 select DMA_ENGINE 190 depends on ARCH_U300 191 help 192 Enable support for ST-Ericsson COH 901 318 DMA. 193 194config STE_DMA40 195 bool "ST-Ericsson DMA40 support" 196 depends on ARCH_U8500 197 select DMA_ENGINE 198 help 199 Support for ST-Ericsson DMA40 controller 200 201config AMCC_PPC440SPE_ADMA 202 tristate "AMCC PPC440SPe ADMA support" 203 depends on 440SPe || 440SP 204 select DMA_ENGINE 205 select ARCH_HAS_ASYNC_TX_FIND_CHANNEL 206 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 207 help 208 Enable support for the AMCC PPC440SPe RAID engines. 209 210config TIMB_DMA 211 tristate "Timberdale FPGA DMA support" 212 depends on MFD_TIMBERDALE || HAS_IOMEM 213 select DMA_ENGINE 214 help 215 Enable support for the Timberdale FPGA DMA engine. 216 217config SIRF_DMA 218 tristate "CSR SiRFprimaII/SiRFmarco DMA support" 219 depends on ARCH_SIRF 220 select DMA_ENGINE 221 help 222 Enable support for the CSR SiRFprimaII DMA engine. 223 224config TI_EDMA 225 tristate "TI EDMA support" 226 depends on ARCH_DAVINCI 227 select DMA_ENGINE 228 select DMA_VIRTUAL_CHANNELS 229 default n 230 help 231 Enable support for the TI EDMA controller. This DMA 232 engine is found on TI DaVinci and AM33xx parts. 233 234config ARCH_HAS_ASYNC_TX_FIND_CHANNEL 235 bool 236 237config PL330_DMA 238 tristate "DMA API Driver for PL330" 239 select DMA_ENGINE 240 depends on ARM_AMBA 241 help 242 Select if your platform has one or more PL330 DMACs. 243 You need to provide platform specific settings via 244 platform_data for a dma-pl330 device. 245 246config PCH_DMA 247 tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" 248 depends on PCI && X86 249 select DMA_ENGINE 250 help 251 Enable support for Intel EG20T PCH DMA engine. 252 253 This driver also can be used for LAPIS Semiconductor IOH(Input/ 254 Output Hub), ML7213, ML7223 and ML7831. 255 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 256 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 257 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 258 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 259 260config IMX_SDMA 261 tristate "i.MX SDMA support" 262 depends on ARCH_MXC 263 select DMA_ENGINE 264 help 265 Support the i.MX SDMA engine. This engine is integrated into 266 Freescale i.MX25/31/35/51/53 chips. 267 268config IMX_DMA 269 tristate "i.MX DMA support" 270 depends on ARCH_MXC 271 select DMA_ENGINE 272 help 273 Support the i.MX DMA engine. This engine is integrated into 274 Freescale i.MX1/21/27 chips. 275 276config MXS_DMA 277 bool "MXS DMA support" 278 depends on SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q 279 select STMP_DEVICE 280 select DMA_ENGINE 281 help 282 Support the MXS DMA engine. This engine including APBH-DMA 283 and APBX-DMA is integrated into Freescale i.MX23/28 chips. 284 285config EP93XX_DMA 286 bool "Cirrus Logic EP93xx DMA support" 287 depends on ARCH_EP93XX 288 select DMA_ENGINE 289 help 290 Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller. 291 292config DMA_SA11X0 293 tristate "SA-11x0 DMA support" 294 depends on ARCH_SA1100 295 select DMA_ENGINE 296 select DMA_VIRTUAL_CHANNELS 297 help 298 Support the DMA engine found on Intel StrongARM SA-1100 and 299 SA-1110 SoCs. This DMA engine can only be used with on-chip 300 devices. 301 302config MMP_TDMA 303 bool "MMP Two-Channel DMA support" 304 depends on ARCH_MMP 305 select DMA_ENGINE 306 help 307 Support the MMP Two-Channel DMA engine. 308 This engine used for MMP Audio DMA and pxa910 SQU. 309 310 Say Y here if you enabled MMP ADMA, otherwise say N. 311 312config DMA_OMAP 313 tristate "OMAP DMA support" 314 depends on ARCH_OMAP 315 select DMA_ENGINE 316 select DMA_VIRTUAL_CHANNELS 317 318config MMP_PDMA 319 bool "MMP PDMA support" 320 depends on (ARCH_MMP || ARCH_PXA) 321 select DMA_ENGINE 322 help 323 Support the MMP PDMA engine for PXA and MMP platfrom. 324 325config DMA_ENGINE 326 bool 327 328config DMA_VIRTUAL_CHANNELS 329 tristate 330 331config DMA_OF 332 def_bool y 333 depends on OF 334 335comment "DMA Clients" 336 depends on DMA_ENGINE 337 338config NET_DMA 339 bool "Network: TCP receive copy offload" 340 depends on DMA_ENGINE && NET 341 default (INTEL_IOATDMA || FSL_DMA) 342 help 343 This enables the use of DMA engines in the network stack to 344 offload receive copy-to-user operations, freeing CPU cycles. 345 346 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise 347 say N. 348 349config ASYNC_TX_DMA 350 bool "Async_tx: Offload support for the async_tx api" 351 depends on DMA_ENGINE 352 help 353 This allows the async_tx api to take advantage of offload engines for 354 memcpy, memset, xor, and raid6 p+q operations. If your platform has 355 a dma engine that can perform raid operations and you have enabled 356 MD_RAID456 say Y. 357 358 If unsure, say N. 359 360config DMATEST 361 tristate "DMA Test client" 362 depends on DMA_ENGINE 363 help 364 Simple DMA test client. Say N unless you're debugging a 365 DMA Device driver. 366 367endif 368