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