1 # SPDX-License-Identifier: GPL-2.0-only 2 # 3 # SPI driver configuration 4 # 5 menuconfig SPI 6 bool "SPI support" 7 depends on HAS_IOMEM 8 help 9 The "Serial Peripheral Interface" is a low level synchronous 10 protocol. Chips that support SPI can have data transfer rates 11 up to several tens of Mbit/sec. Chips are addressed with a 12 controller and a chipselect. Most SPI slaves don't support 13 dynamic device discovery; some are even write-only or read-only. 14 15 SPI is widely used by microcontrollers to talk with sensors, 16 eeprom and flash memory, codecs and various other controller 17 chips, analog to digital (and d-to-a) converters, and more. 18 MMC and SD cards can be accessed using SPI protocol; and for 19 DataFlash cards used in MMC sockets, SPI must always be used. 20 21 SPI is one of a family of similar protocols using a four wire 22 interface (select, clock, data in, data out) including Microwire 23 (half duplex), SSP, SSI, and PSP. This driver framework should 24 work with most such devices and controllers. 25 26 if SPI 27 28 config SPI_DEBUG 29 bool "Debug support for SPI drivers" 30 depends on DEBUG_KERNEL 31 help 32 Say "yes" to enable debug messaging (like dev_dbg and pr_debug), 33 sysfs, and debugfs support in SPI controller and protocol drivers. 34 35 # 36 # MASTER side ... talking to discrete SPI slave chips including microcontrollers 37 # 38 39 config SPI_MASTER 40 # bool "SPI Master Support" 41 bool 42 default SPI 43 help 44 If your system has an master-capable SPI controller (which 45 provides the clock and chipselect), you can enable that 46 controller and the protocol drivers for the SPI slave chips 47 that are connected. 48 49 if SPI_MASTER 50 51 config SPI_MEM 52 bool "SPI memory extension" 53 help 54 Enable this option if you want to enable the SPI memory extension. 55 This extension is meant to simplify interaction with SPI memories 56 by providing a high-level interface to send memory-like commands. 57 58 comment "SPI Master Controller Drivers" 59 60 config SPI_ALTERA 61 tristate "Altera SPI Controller platform driver" 62 select SPI_ALTERA_CORE 63 select REGMAP_MMIO 64 help 65 This is the driver for the Altera SPI Controller. 66 67 config SPI_ALTERA_CORE 68 tristate "Altera SPI Controller core code" if COMPILE_TEST 69 select REGMAP 70 help 71 "The core code for the Altera SPI Controller" 72 73 config SPI_ALTERA_DFL 74 tristate "DFL bus driver for Altera SPI Controller" 75 depends on FPGA_DFL 76 select SPI_ALTERA_CORE 77 help 78 This is a Device Feature List (DFL) bus driver for the 79 Altera SPI master controller. The SPI master is connected 80 to a SPI slave to Avalon bridge in a Intel MAX BMC. 81 82 config SPI_AMLOGIC_SPIFC_A1 83 tristate "Amlogic A1 SPIFC controller" 84 depends on ARCH_MESON || COMPILE_TEST 85 help 86 This enables master mode support for the SPIFC (SPI flash 87 controller) available in Amlogic A1 (A113L SoC). 88 89 config SPI_AR934X 90 tristate "Qualcomm Atheros AR934X/QCA95XX SPI controller driver" 91 depends on ATH79 || COMPILE_TEST 92 help 93 This enables support for the SPI controller present on the 94 Qualcomm Atheros AR934X/QCA95XX SoCs. 95 96 config SPI_ATH79 97 tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver" 98 depends on ATH79 || COMPILE_TEST 99 select SPI_BITBANG 100 help 101 This enables support for the SPI controller present on the 102 Atheros AR71XX/AR724X/AR913X SoCs. 103 104 config SPI_ARMADA_3700 105 tristate "Marvell Armada 3700 SPI Controller" 106 depends on (ARCH_MVEBU && OF) || COMPILE_TEST 107 help 108 This enables support for the SPI controller present on the 109 Marvell Armada 3700 SoCs. 110 111 config SPI_ASPEED_SMC 112 tristate "Aspeed flash controllers in SPI mode" 113 depends on ARCH_ASPEED || COMPILE_TEST 114 depends on OF 115 help 116 This enables support for the Firmware Memory controller (FMC) 117 in the Aspeed AST2600, AST2500 and AST2400 SoCs when attached 118 to SPI NOR chips, and support for the SPI flash memory 119 controller (SPI) for the host firmware. The implementation 120 only supports SPI NOR. 121 122 config SPI_ATMEL 123 tristate "Atmel SPI Controller" 124 depends on ARCH_AT91 || COMPILE_TEST 125 depends on OF 126 help 127 This selects a driver for the Atmel SPI Controller, present on 128 many AT91 ARM chips. 129 130 config SPI_AT91_USART 131 tristate "Atmel USART Controller SPI driver" 132 depends on (ARCH_AT91 || COMPILE_TEST) 133 depends on MFD_AT91_USART 134 help 135 This selects a driver for the AT91 USART Controller as SPI Master, 136 present on AT91 and SAMA5 SoC series. 137 138 config SPI_ATMEL_QUADSPI 139 tristate "Atmel Quad SPI Controller" 140 depends on ARCH_AT91 || COMPILE_TEST 141 depends on OF && HAS_IOMEM 142 help 143 This enables support for the Quad SPI controller in master mode. 144 This driver does not support generic SPI. The implementation only 145 supports spi-mem interface. 146 147 config SPI_AU1550 148 tristate "Au1550/Au1200/Au1300 SPI Controller" 149 depends on MIPS_ALCHEMY 150 select SPI_BITBANG 151 help 152 If you say yes to this option, support will be included for the 153 PSC SPI controller found on Au1550, Au1200 and Au1300 series. 154 155 config SPI_AXI_SPI_ENGINE 156 tristate "Analog Devices AXI SPI Engine controller" 157 depends on HAS_IOMEM 158 help 159 This enables support for the Analog Devices AXI SPI Engine SPI controller. 160 It is part of the SPI Engine framework that is used in some Analog Devices 161 reference designs for FPGAs. 162 163 config SPI_BCM2835 164 tristate "BCM2835 SPI controller" 165 depends on GPIOLIB 166 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST 167 help 168 This selects a driver for the Broadcom BCM2835 SPI master. 169 170 The BCM2835 contains two types of SPI master controller; the 171 "universal SPI master", and the regular SPI controller. This driver 172 is for the regular SPI controller. Slave mode operation is not also 173 not supported. 174 175 config SPI_BCM2835AUX 176 tristate "BCM2835 SPI auxiliary controller" 177 depends on ((ARCH_BCM2835 || ARCH_BRCMSTB) && GPIOLIB) || COMPILE_TEST 178 help 179 This selects a driver for the Broadcom BCM2835 SPI aux master. 180 181 The BCM2835 contains two types of SPI master controller; the 182 "universal SPI master", and the regular SPI controller. 183 This driver is for the universal/auxiliary SPI controller. 184 185 config SPI_BCM63XX 186 tristate "Broadcom BCM63xx SPI controller" 187 depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST 188 help 189 Enable support for the SPI controller on the Broadcom BCM63xx SoCs. 190 191 config SPI_BCM63XX_HSSPI 192 tristate "Broadcom BCM63XX HS SPI controller driver" 193 depends on BCM63XX || BMIPS_GENERIC || ARCH_BCMBCA || COMPILE_TEST 194 help 195 This enables support for the High Speed SPI controller present on 196 newer Broadcom BCM63XX SoCs. 197 198 config SPI_BCM_QSPI 199 tristate "Broadcom BSPI and MSPI controller support" 200 depends on ARCH_BRCMSTB || ARCH_BCM || ARCH_BCM_IPROC || \ 201 BMIPS_GENERIC || COMPILE_TEST 202 default ARCH_BCM_IPROC 203 help 204 Enables support for the Broadcom SPI flash and MSPI controller. 205 Select this option for any one of BRCMSTB, iProc NSP and NS2 SoCs 206 based platforms. This driver works for both SPI master for SPI NOR 207 flash device as well as MSPI device. 208 209 config SPI_BCMBCA_HSSPI 210 tristate "Broadcom BCMBCA HS SPI controller driver" 211 depends on ARCH_BCMBCA || COMPILE_TEST 212 help 213 This enables support for the High Speed SPI controller present on 214 newer Broadcom BCMBCA SoCs. These SoCs include an updated SPI controller 215 that adds the capability to allow the driver to control chip select 216 explicitly. 217 218 config SPI_BITBANG 219 tristate "Utilities for Bitbanging SPI masters" 220 help 221 With a few GPIO pins, your system can bitbang the SPI protocol. 222 Select this to get SPI support through I/O pins (GPIO, parallel 223 port, etc). Or, some systems' SPI master controller drivers use 224 this code to manage the per-word or per-transfer accesses to the 225 hardware shift registers. 226 227 This is library code, and is automatically selected by drivers that 228 need it. You only need to select this explicitly to support driver 229 modules that aren't part of this kernel tree. 230 231 config SPI_BUTTERFLY 232 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" 233 depends on PARPORT 234 select SPI_BITBANG 235 help 236 This uses a custom parallel port cable to connect to an AVR 237 Butterfly <http://www.atmel.com/products/avr/butterfly>, an 238 inexpensive battery powered microcontroller evaluation board. 239 This same cable can be used to flash new firmware. 240 241 config SPI_CADENCE 242 tristate "Cadence SPI controller" 243 help 244 This selects the Cadence SPI controller master driver 245 used by Xilinx Zynq and ZynqMP. 246 247 config SPI_CADENCE_QUADSPI 248 tristate "Cadence Quad SPI controller" 249 depends on OF && (ARM || ARM64 || X86 || RISCV || COMPILE_TEST) 250 help 251 Enable support for the Cadence Quad SPI Flash controller. 252 253 Cadence QSPI is a specialized controller for connecting an SPI 254 Flash over 1/2/4-bit wide bus. Enable this option if you have a 255 device with a Cadence QSPI controller and want to access the 256 Flash as an MTD device. 257 258 config SPI_CADENCE_XSPI 259 tristate "Cadence XSPI controller" 260 depends on OF && HAS_IOMEM 261 depends on SPI_MEM 262 help 263 Enable support for the Cadence XSPI Flash controller. 264 265 Cadence XSPI is a specialized controller for connecting an SPI 266 Flash over up to 8-bit wide bus. Enable this option if you have a 267 device with a Cadence XSPI controller and want to access the 268 Flash as an MTD device. 269 270 config SPI_CLPS711X 271 tristate "CLPS711X host SPI controller" 272 depends on ARCH_CLPS711X || COMPILE_TEST 273 help 274 This enables dedicated general purpose SPI/Microwire1-compatible 275 master mode interface (SSI1) for CLPS711X-based CPUs. 276 277 config SPI_COLDFIRE_QSPI 278 tristate "Freescale Coldfire QSPI controller" 279 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 280 help 281 This enables support for the Coldfire QSPI controller in master 282 mode. 283 284 config SPI_CS42L43 285 tristate "Cirrus Logic CS42L43 SPI controller" 286 depends on MFD_CS42L43 && PINCTRL_CS42L43 287 help 288 This enables support for the SPI controller inside the Cirrus Logic 289 CS42L43 audio codec. 290 291 config SPI_DAVINCI 292 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 293 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 294 select SPI_BITBANG 295 help 296 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 297 298 config SPI_DESIGNWARE 299 tristate "DesignWare SPI controller core support" 300 imply SPI_MEM 301 help 302 general driver for SPI controller core from DesignWare 303 304 if SPI_DESIGNWARE 305 306 config SPI_DW_DMA 307 bool "DMA support for DW SPI controller" 308 309 config SPI_DW_PCI 310 tristate "PCI interface driver for DW SPI core" 311 depends on PCI 312 313 config SPI_DW_MMIO 314 tristate "Memory-mapped io interface driver for DW SPI core" 315 depends on HAS_IOMEM 316 317 config SPI_DW_BT1 318 tristate "Baikal-T1 SPI driver for DW SPI core" 319 depends on MIPS_BAIKAL_T1 || COMPILE_TEST 320 select MULTIPLEXER 321 help 322 Baikal-T1 SoC is equipped with three DW APB SSI-based MMIO SPI 323 controllers. Two of them are pretty much normal: with IRQ, DMA, 324 FIFOs of 64 words depth, 4x CSs, but the third one as being a 325 part of the Baikal-T1 System Boot Controller has got a very 326 limited resources: no IRQ, no DMA, only a single native 327 chip-select and Tx/Rx FIFO with just 8 words depth available. 328 The later one is normally connected to an external SPI-nor flash 329 of 128Mb (in general can be of bigger size). 330 331 config SPI_DW_BT1_DIRMAP 332 bool "Directly mapped Baikal-T1 Boot SPI flash support" 333 depends on SPI_DW_BT1 334 help 335 Directly mapped SPI flash memory is an interface specific to the 336 Baikal-T1 System Boot Controller. It is a 16MB MMIO region, which 337 can be used to access a peripheral memory device just by 338 reading/writing data from/to it. Note that the system APB bus 339 will stall during each IO from/to the dirmap region until the 340 operation is finished. So try not to use it concurrently with 341 time-critical tasks (like the SPI memory operations implemented 342 in this driver). 343 344 endif 345 346 config SPI_DLN2 347 tristate "Diolan DLN-2 USB SPI adapter" 348 depends on MFD_DLN2 349 help 350 If you say yes to this option, support will be included for Diolan 351 DLN2, a USB to SPI interface. 352 353 This driver can also be built as a module. If so, the module 354 will be called spi-dln2. 355 356 config SPI_EP93XX 357 tristate "Cirrus Logic EP93xx SPI controller" 358 depends on ARCH_EP93XX || COMPILE_TEST 359 help 360 This enables using the Cirrus EP93xx SPI controller in master 361 mode. 362 363 config SPI_FALCON 364 bool "Falcon SPI controller support" 365 depends on SOC_FALCON 366 help 367 The external bus unit (EBU) found on the FALC-ON SoC has SPI 368 emulation that is designed for serial flash access. This driver 369 has only been tested with m25p80 type chips. The hardware has no 370 support for other types of SPI peripherals. 371 372 config SPI_FSI 373 tristate "FSI SPI driver" 374 depends on FSI 375 help 376 This enables support for the driver for FSI bus attached SPI 377 controllers. 378 379 config SPI_FSL_LPSPI 380 tristate "Freescale i.MX LPSPI controller" 381 depends on ARCH_MXC || COMPILE_TEST 382 help 383 This enables Freescale i.MX LPSPI controllers in master mode. 384 385 config SPI_FSL_QUADSPI 386 tristate "Freescale QSPI controller" 387 depends on ARCH_MXC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST 388 depends on HAS_IOMEM 389 help 390 This enables support for the Quad SPI controller in master mode. 391 Up to four flash chips can be connected on two buses with two 392 chipselects each. 393 This controller does not support generic SPI messages. It only 394 supports the high-level SPI memory interface. 395 396 config SPI_GXP 397 tristate "GXP SPI driver" 398 depends on ARCH_HPE || COMPILE_TEST 399 help 400 This enables support for the driver for GXP bus attached SPI 401 controllers. 402 403 config SPI_HISI_KUNPENG 404 tristate "HiSilicon SPI Controller for Kunpeng SoCs" 405 depends on (ARM64 && ACPI) || COMPILE_TEST 406 help 407 This enables support for HiSilicon SPI controller found on 408 Kunpeng SoCs. 409 410 This driver can also be built as a module. If so, the module 411 will be called hisi-kunpeng-spi. 412 413 config SPI_HISI_SFC_V3XX 414 tristate "HiSilicon SPI NOR Flash Controller for Hi16XX chipsets" 415 depends on (ARM64 && ACPI) || COMPILE_TEST 416 depends on HAS_IOMEM 417 help 418 This enables support for HiSilicon v3xx SPI NOR flash controller 419 found in hi16xx chipsets. 420 421 config SPI_NXP_FLEXSPI 422 tristate "NXP Flex SPI controller" 423 depends on ARCH_LAYERSCAPE || ARCH_MXC || COMPILE_TEST 424 depends on HAS_IOMEM 425 help 426 This enables support for the Flex SPI controller in master mode. 427 Up to four slave devices can be connected on two buses with two 428 chipselects each. 429 This controller does not support generic SPI messages and only 430 supports the high-level SPI memory interface. 431 432 config SPI_GPIO 433 tristate "GPIO-based bitbanging SPI Master" 434 depends on GPIOLIB || COMPILE_TEST 435 select SPI_BITBANG 436 help 437 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 438 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 439 slaves connected to a bus using this driver are configured as usual, 440 except that the spi_board_info.controller_data holds the GPIO number 441 for the chipselect used by this controller driver. 442 443 Note that this driver often won't achieve even 1 Mbit/sec speeds, 444 making it unusually slow for SPI. If your platform can inline 445 GPIO operations, you should be able to leverage that for better 446 speed with a custom version of this driver; see the source code. 447 448 config SPI_IMG_SPFI 449 tristate "IMG SPFI controller" 450 depends on MIPS || COMPILE_TEST 451 help 452 This enables support for the SPFI master controller found on 453 IMG SoCs. 454 455 config SPI_IMX 456 tristate "Freescale i.MX SPI controllers" 457 depends on ARCH_MXC || COMPILE_TEST 458 help 459 This enables support for the Freescale i.MX SPI controllers. 460 461 config SPI_INGENIC 462 tristate "Ingenic SoCs SPI controller" 463 depends on MACH_INGENIC || COMPILE_TEST 464 help 465 This enables support for the Ingenic SoCs SPI controller. 466 467 To compile this driver as a module, choose M here: the module 468 will be called spi-ingenic. 469 470 config SPI_INTEL 471 tristate 472 473 config SPI_INTEL_PCI 474 tristate "Intel PCH/PCU SPI flash PCI driver" 475 depends on PCI 476 depends on X86 || COMPILE_TEST 477 depends on SPI_MEM 478 select SPI_INTEL 479 help 480 This enables PCI support for the Intel PCH/PCU SPI controller in 481 master mode. This controller is used to hold BIOS and other 482 persistent settings. Controllers present in modern Intel hardware 483 only work in hardware sequencing mode, this means that the 484 controller exposes a subset of operations that makes it safer to 485 use. Using this driver it is possible to upgrade BIOS directly 486 from Linux. 487 488 To compile this driver as a module, choose M here: the module 489 will be called spi-intel-pci. 490 491 config SPI_INTEL_PLATFORM 492 tristate "Intel PCH/PCU SPI flash platform driver (DANGEROUS)" 493 depends on X86 || COMPILE_TEST 494 depends on SPI_MEM 495 select SPI_INTEL 496 help 497 This enables platform support for the Intel PCH/PCU SPI 498 controller in master mode that is used to hold BIOS and other 499 persistent settings. Most of these controllers work in 500 software sequencing mode, which means that the controller 501 exposes the low level SPI-NOR opcodes to the software. Using 502 this driver it is possible to upgrade BIOS directly from Linux. 503 504 Say N here unless you know what you are doing. Overwriting the 505 SPI flash may render the system unbootable. 506 507 To compile this driver as a module, choose M here: the module 508 will be called spi-intel-platform. 509 510 config SPI_JCORE 511 tristate "J-Core SPI Master" 512 depends on OF && (SUPERH || COMPILE_TEST) 513 help 514 This enables support for the SPI master controller in the J-Core 515 synthesizable, open source SoC. 516 517 config SPI_LM70_LLP 518 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 519 depends on PARPORT 520 select SPI_BITBANG 521 help 522 This driver supports the NS LM70 LLP Evaluation Board, 523 which interfaces to an LM70 temperature sensor using 524 a parallel port. 525 526 config SPI_LOONGSON_CORE 527 tristate 528 depends on LOONGARCH || COMPILE_TEST 529 530 config SPI_LOONGSON_PCI 531 tristate "Loongson SPI Controller PCI Driver Support" 532 select SPI_LOONGSON_CORE 533 depends on PCI && (LOONGARCH || COMPILE_TEST) 534 help 535 This bus driver supports the Loongson SPI hardware controller in 536 the Loongson platforms and supports to use PCI framework to 537 register SPI device resources. 538 Say Y or M here if you want to use the SPI controller on 539 Loongson platform. 540 541 config SPI_LOONGSON_PLATFORM 542 tristate "Loongson SPI Controller Platform Driver Support" 543 select SPI_LOONGSON_CORE 544 depends on OF && (LOONGARCH || COMPILE_TEST) 545 help 546 This bus driver supports the Loongson SPI hardware controller in 547 the Loongson platforms and supports to use DTS framework to 548 register SPI device resources. 549 Say Y or M here if you want to use the SPI controller on 550 Loongson platform. 551 552 config SPI_LP8841_RTC 553 tristate "ICP DAS LP-8841 SPI Controller for RTC" 554 depends on MACH_PXA27X_DT || COMPILE_TEST 555 help 556 This driver provides an SPI master device to drive Maxim 557 DS-1302 real time clock. 558 559 Say N here unless you plan to run the kernel on an ICP DAS 560 LP-8x4x industrial computer. 561 562 config SPI_MPC52xx 563 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 564 depends on PPC_MPC52xx 565 help 566 This drivers supports the MPC52xx SPI controller in master SPI 567 mode. 568 569 config SPI_MPC52xx_PSC 570 tristate "Freescale MPC52xx PSC SPI controller" 571 depends on PPC_MPC52xx 572 help 573 This enables using the Freescale MPC52xx Programmable Serial 574 Controller in master SPI mode. 575 576 config SPI_MPC512x_PSC 577 tristate "Freescale MPC512x PSC SPI controller" 578 depends on PPC_MPC512x 579 help 580 This enables using the Freescale MPC5121 Programmable Serial 581 Controller in SPI master mode. 582 583 config SPI_FSL_LIB 584 tristate 585 depends on OF 586 587 config SPI_FSL_CPM 588 tristate 589 depends on FSL_SOC 590 591 config SPI_FSL_SPI 592 tristate "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 593 depends on OF 594 select SPI_FSL_LIB 595 select SPI_FSL_CPM if FSL_SOC 596 help 597 This enables using the Freescale SPI controllers in master mode. 598 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 599 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 600 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 601 master mode. 602 603 config SPI_FSL_DSPI 604 tristate "Freescale DSPI controller" 605 select REGMAP_MMIO 606 depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || M5441x || COMPILE_TEST 607 help 608 This enables support for the Freescale DSPI controller in master 609 mode. VF610, LS1021A and ColdFire platforms uses the controller. 610 611 config SPI_FSL_ESPI 612 tristate "Freescale eSPI controller" 613 depends on FSL_SOC 614 help 615 This enables using the Freescale eSPI controllers in master mode. 616 From MPC8536, 85xx platform uses the controller, and all P10xx, 617 P20xx, P30xx,P40xx, P50xx uses this controller. 618 619 config SPI_MESON_SPICC 620 tristate "Amlogic Meson SPICC controller" 621 depends on COMMON_CLK 622 depends on ARCH_MESON || COMPILE_TEST 623 help 624 This enables master mode support for the SPICC (SPI communication 625 controller) available in Amlogic Meson SoCs. 626 627 config SPI_MESON_SPIFC 628 tristate "Amlogic Meson SPIFC controller" 629 depends on ARCH_MESON || COMPILE_TEST 630 select REGMAP_MMIO 631 help 632 This enables master mode support for the SPIFC (SPI flash 633 controller) available in Amlogic Meson SoCs. 634 635 config SPI_MICROCHIP_CORE 636 tristate "Microchip FPGA SPI controllers" 637 depends on SPI_MASTER 638 help 639 This enables the SPI driver for Microchip FPGA SPI controllers. 640 Say Y or M here if you want to use the "hard" controllers on 641 PolarFire SoC. 642 If built as a module, it will be called spi-microchip-core. 643 644 config SPI_MICROCHIP_CORE_QSPI 645 tristate "Microchip FPGA QSPI controllers" 646 depends on SPI_MASTER 647 help 648 This enables the QSPI driver for Microchip FPGA QSPI controllers. 649 Say Y or M here if you want to use the QSPI controllers on 650 PolarFire SoC. 651 If built as a module, it will be called spi-microchip-core-qspi. 652 653 config SPI_MT65XX 654 tristate "MediaTek SPI controller" 655 depends on ARCH_MEDIATEK || COMPILE_TEST 656 help 657 This selects the MediaTek(R) SPI bus driver. 658 If you want to use MediaTek(R) SPI interface, 659 say Y or M here.If you are not sure, say N. 660 SPI drivers for Mediatek MT65XX and MT81XX series ARM SoCs. 661 662 config SPI_MT7621 663 tristate "MediaTek MT7621 SPI Controller" 664 depends on RALINK || COMPILE_TEST 665 help 666 This selects a driver for the MediaTek MT7621 SPI Controller. 667 668 config SPI_MTK_NOR 669 tristate "MediaTek SPI NOR controller" 670 depends on ARCH_MEDIATEK || COMPILE_TEST 671 help 672 This enables support for SPI NOR controller found on MediaTek 673 ARM SoCs. This is a controller specifically for SPI NOR flash. 674 It can perform generic SPI transfers up to 6 bytes via generic 675 SPI interface as well as several SPI NOR specific instructions 676 via SPI MEM interface. 677 678 config SPI_MTK_SNFI 679 tristate "MediaTek SPI NAND Flash Interface" 680 depends on ARCH_MEDIATEK || COMPILE_TEST 681 depends on MTD_NAND_ECC_MEDIATEK 682 help 683 This enables support for SPI-NAND mode on the MediaTek NAND 684 Flash Interface found on MediaTek ARM SoCs. This controller 685 is implemented as a SPI-MEM controller with pipelined ECC 686 capcability. 687 688 config SPI_WPCM_FIU 689 tristate "Nuvoton WPCM450 Flash Interface Unit" 690 depends on ARCH_NPCM || COMPILE_TEST 691 select REGMAP 692 help 693 This enables support got the Flash Interface Unit SPI controller 694 present in the Nuvoton WPCM450 SoC. 695 696 This driver does not support generic SPI. The implementation only 697 supports the spi-mem interface. 698 699 config SPI_NPCM_FIU 700 tristate "Nuvoton NPCM FLASH Interface Unit" 701 depends on ARCH_NPCM || COMPILE_TEST 702 depends on OF && HAS_IOMEM 703 help 704 This enables support for the Flash Interface Unit SPI controller 705 in master mode. 706 This driver does not support generic SPI. The implementation only 707 supports spi-mem interface. 708 709 config SPI_NPCM_PSPI 710 tristate "Nuvoton NPCM PSPI Controller" 711 depends on ARCH_NPCM || COMPILE_TEST 712 help 713 This driver provides support for Nuvoton NPCM BMC 714 Peripheral SPI controller in master mode. 715 716 config SPI_LANTIQ_SSC 717 tristate "Lantiq SSC SPI controller" 718 depends on LANTIQ || X86 || COMPILE_TEST 719 help 720 This driver supports the Lantiq SSC SPI controller in master 721 mode. This controller is found on Intel (former Lantiq) SoCs like 722 the Danube, Falcon, xRX200, xRX300, Lightning Mountain. 723 724 config SPI_OC_TINY 725 tristate "OpenCores tiny SPI" 726 depends on GPIOLIB || COMPILE_TEST 727 select SPI_BITBANG 728 help 729 This is the driver for OpenCores tiny SPI master controller. 730 731 config SPI_OCTEON 732 tristate "Cavium OCTEON SPI controller" 733 depends on CAVIUM_OCTEON_SOC 734 help 735 SPI host driver for the hardware found on some Cavium OCTEON 736 SOCs. 737 738 config SPI_OMAP_UWIRE 739 tristate "OMAP1 MicroWire" 740 depends on ARCH_OMAP1 || (ARM && COMPILE_TEST) 741 select SPI_BITBANG 742 help 743 This hooks up to the MicroWire controller on OMAP1 chips. 744 745 config SPI_OMAP24XX 746 tristate "McSPI driver for OMAP" 747 depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST 748 select SG_SPLIT 749 help 750 SPI master controller for OMAP24XX and later Multichannel SPI 751 (McSPI) modules. 752 753 config SPI_TI_QSPI 754 tristate "DRA7xxx QSPI controller support" 755 depends on ARCH_OMAP2PLUS || COMPILE_TEST 756 help 757 QSPI master controller for DRA7xxx used for flash devices. 758 This device supports single, dual and quad read support, while 759 it only supports single write mode. 760 761 config SPI_ORION 762 tristate "Orion SPI master" 763 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST 764 help 765 This enables using the SPI master controller on the Orion 766 and MVEBU chips. 767 768 config SPI_PCI1XXXX 769 tristate "PCI1XXXX SPI Bus support" 770 depends on PCI 771 help 772 Say "yes" to Enable the SPI Bus support for the PCI1xxxx card 773 This is a PCI to SPI Bus driver 774 This driver can be built as module. If so, the module will be 775 called as spi-pci1xxxx. 776 777 config SPI_PIC32 778 tristate "Microchip PIC32 series SPI" 779 depends on MACH_PIC32 || COMPILE_TEST 780 help 781 SPI driver for Microchip PIC32 SPI master controller. 782 783 config SPI_PIC32_SQI 784 tristate "Microchip PIC32 Quad SPI driver" 785 depends on MACH_PIC32 || COMPILE_TEST 786 help 787 SPI driver for PIC32 Quad SPI controller. 788 789 config SPI_PL022 790 tristate "ARM AMBA PL022 SSP controller" 791 depends on ARM_AMBA 792 default y if ARCH_REALVIEW 793 default y if INTEGRATOR_IMPD1 794 default y if ARCH_VERSATILE 795 help 796 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 797 controller. If you have an embedded system with an AMBA(R) 798 bus and a PL022 controller, say Y or M here. 799 800 config SPI_PPC4xx 801 tristate "PPC4xx SPI Controller" 802 depends on PPC32 && 4xx 803 select SPI_BITBANG 804 help 805 This selects a driver for the PPC4xx SPI Controller. 806 807 config SPI_PXA2XX 808 tristate "PXA2xx SSP SPI master" 809 depends on ARCH_PXA || ARCH_MMP || PCI || ACPI || COMPILE_TEST 810 select PXA_SSP if ARCH_PXA || ARCH_MMP 811 help 812 This enables using a PXA2xx or Sodaville SSP port as a SPI master 813 controller. The driver can be configured to use any SSP port and 814 additional documentation can be found a Documentation/spi/pxa2xx.rst. 815 816 config SPI_PXA2XX_PCI 817 def_tristate SPI_PXA2XX && PCI && COMMON_CLK 818 819 config SPI_ROCKCHIP 820 tristate "Rockchip SPI controller driver" 821 depends on ARCH_ROCKCHIP || COMPILE_TEST 822 help 823 This selects a driver for Rockchip SPI controller. 824 825 If you say yes to this option, support will be included for 826 RK3066, RK3188 and RK3288 families of SPI controller. 827 Rockchip SPI controller support DMA transport and PIO mode. 828 The main usecase of this controller is to use spi flash as boot 829 device. 830 831 config SPI_ROCKCHIP_SFC 832 tristate "Rockchip Serial Flash Controller (SFC)" 833 depends on ARCH_ROCKCHIP || COMPILE_TEST 834 depends on HAS_IOMEM && HAS_DMA 835 help 836 This enables support for Rockchip serial flash controller. This 837 is a specialized controller used to access SPI flash on some 838 Rockchip SOCs. 839 840 ROCKCHIP SFC supports DMA and PIO modes. When DMA is not available, 841 the driver automatically falls back to PIO mode. 842 843 config SPI_RB4XX 844 tristate "Mikrotik RB4XX SPI master" 845 depends on SPI_MASTER && ATH79 846 help 847 SPI controller driver for the Mikrotik RB4xx series boards. 848 849 config SPI_RPCIF 850 tristate "Renesas RPC-IF SPI driver" 851 depends on RENESAS_RPCIF 852 help 853 SPI driver for Renesas R-Car Gen3 or RZ/G2 RPC-IF. 854 855 config SPI_RSPI 856 tristate "Renesas RSPI/QSPI controller" 857 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST 858 help 859 SPI driver for Renesas RSPI and QSPI blocks. 860 861 config SPI_RZV2M_CSI 862 tristate "Renesas RZ/V2M CSI controller" 863 depends on ARCH_RENESAS || COMPILE_TEST 864 help 865 SPI driver for Renesas RZ/V2M Clocked Serial Interface (CSI) 866 867 config SPI_QCOM_QSPI 868 tristate "QTI QSPI controller" 869 depends on ARCH_QCOM || COMPILE_TEST 870 help 871 QSPI(Quad SPI) driver for Qualcomm QSPI controller. 872 873 config SPI_QUP 874 tristate "Qualcomm SPI controller with QUP interface" 875 depends on ARCH_QCOM || COMPILE_TEST 876 help 877 Qualcomm Universal Peripheral (QUP) core is an AHB slave that 878 provides a common data path (an output FIFO and an input FIFO) 879 for serial peripheral interface (SPI) mini-core. SPI in master 880 mode supports up to 50MHz, up to four chip selects, programmable 881 data path from 4 bits to 32 bits and numerous protocol variants. 882 883 This driver can also be built as a module. If so, the module 884 will be called spi_qup. 885 886 config SPI_QCOM_GENI 887 tristate "Qualcomm GENI based SPI controller" 888 depends on QCOM_GENI_SE 889 help 890 This driver supports GENI serial engine based SPI controller in 891 master mode on the Qualcomm Technologies Inc.'s SoCs. If you say 892 yes to this option, support will be included for the built-in SPI 893 interface on the Qualcomm Technologies Inc.'s SoCs. 894 895 This driver can also be built as a module. If so, the module 896 will be called spi-geni-qcom. 897 898 config SPI_S3C64XX 899 tristate "Samsung S3C64XX/Exynos SoC series type SPI" 900 depends on (PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST) 901 help 902 SPI driver for Samsung S3C64XX, S5Pv210 and Exynos SoCs. 903 Choose Y/M here only if you build for such Samsung SoC. 904 905 config SPI_SC18IS602 906 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 907 depends on I2C 908 help 909 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 910 911 config SPI_SH_MSIOF 912 tristate "SuperH MSIOF SPI controller" 913 depends on HAVE_CLK 914 depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST 915 help 916 SPI driver for SuperH and SH Mobile MSIOF blocks. 917 918 config SPI_SH 919 tristate "SuperH SPI controller" 920 depends on SUPERH || COMPILE_TEST 921 help 922 SPI driver for SuperH SPI blocks. 923 924 config SPI_SH_SCI 925 tristate "SuperH SCI SPI controller" 926 depends on SUPERH 927 select SPI_BITBANG 928 help 929 SPI driver for SuperH SCI blocks. 930 931 config SPI_SH_HSPI 932 tristate "SuperH HSPI controller" 933 depends on ARCH_RENESAS || COMPILE_TEST 934 help 935 SPI driver for SuperH HSPI blocks. 936 937 config SPI_SIFIVE 938 tristate "SiFive SPI controller" 939 depends on HAS_IOMEM 940 help 941 This exposes the SPI controller IP from SiFive. 942 943 config SPI_SLAVE_MT27XX 944 tristate "MediaTek SPI slave device" 945 depends on ARCH_MEDIATEK || COMPILE_TEST 946 depends on SPI_SLAVE 947 help 948 This selects the MediaTek(R) SPI slave device driver. 949 If you want to use MediaTek(R) SPI slave interface, 950 say Y or M here.If you are not sure, say N. 951 SPI slave drivers for Mediatek MT27XX series ARM SoCs. 952 953 config SPI_SN_F_OSPI 954 tristate "Socionext F_OSPI SPI flash controller" 955 depends on OF && HAS_IOMEM 956 depends on SPI_MEM 957 help 958 This enables support for the Socionext F_OSPI controller 959 for connecting an SPI Flash memory over up to 8-bit wide bus. 960 It supports indirect access mode only. 961 962 config SPI_SPRD 963 tristate "Spreadtrum SPI controller" 964 depends on ARCH_SPRD || COMPILE_TEST 965 help 966 SPI driver for Spreadtrum SoCs. 967 968 config SPI_SPRD_ADI 969 tristate "Spreadtrum ADI controller" 970 depends on ARCH_SPRD || COMPILE_TEST 971 depends on HWSPINLOCK || (COMPILE_TEST && !HWSPINLOCK) 972 help 973 ADI driver based on SPI for Spreadtrum SoCs. 974 975 config SPI_STM32 976 tristate "STMicroelectronics STM32 SPI controller" 977 depends on ARCH_STM32 || COMPILE_TEST 978 select SPI_SLAVE 979 help 980 SPI driver for STMicroelectronics STM32 SoCs. 981 982 STM32 SPI controller supports DMA and PIO modes. When DMA 983 is not available, the driver automatically falls back to 984 PIO mode. 985 986 config SPI_STM32_QSPI 987 tristate "STMicroelectronics STM32 QUAD SPI controller" 988 depends on ARCH_STM32 || COMPILE_TEST 989 depends on OF 990 depends on SPI_MEM 991 help 992 This enables support for the Quad SPI controller in master mode. 993 This driver does not support generic SPI. The implementation only 994 supports spi-mem interface. 995 996 config SPI_ST_SSC4 997 tristate "STMicroelectronics SPI SSC-based driver" 998 depends on ARCH_STI || COMPILE_TEST 999 help 1000 STMicroelectronics SoCs support for SPI. If you say yes to 1001 this option, support will be included for the SSC driven SPI. 1002 1003 config SPI_SUN4I 1004 tristate "Allwinner A10 SoCs SPI controller" 1005 depends on ARCH_SUNXI || COMPILE_TEST 1006 help 1007 SPI driver for Allwinner sun4i, sun5i and sun7i SoCs 1008 1009 config SPI_SUN6I 1010 tristate "Allwinner A31 SPI controller" 1011 depends on ARCH_SUNXI || COMPILE_TEST 1012 depends on RESET_CONTROLLER 1013 help 1014 This enables using the SPI controller on the Allwinner A31 SoCs. 1015 1016 config SPI_SUNPLUS_SP7021 1017 tristate "Sunplus SP7021 SPI controller" 1018 depends on SOC_SP7021 || COMPILE_TEST 1019 help 1020 This enables Sunplus SP7021 SPI controller driver on the SP7021 SoCs. 1021 This driver can also be built as a module. If so, the module will be 1022 called as spi-sunplus-sp7021. 1023 1024 If you have a Sunplus SP7021 platform say Y here. 1025 If unsure, say N. 1026 1027 config SPI_SYNQUACER 1028 tristate "Socionext's SynQuacer HighSpeed SPI controller" 1029 depends on ARCH_SYNQUACER || COMPILE_TEST 1030 help 1031 SPI driver for Socionext's High speed SPI controller which provides 1032 various operating modes for interfacing to serial peripheral devices 1033 that use the de-facto standard SPI protocol. 1034 1035 It also supports the new dual-bit and quad-bit SPI protocol. 1036 1037 config SPI_MXIC 1038 tristate "Macronix MX25F0A SPI controller" 1039 depends on SPI_MASTER 1040 imply MTD_NAND_ECC_MXIC 1041 help 1042 This selects the Macronix MX25F0A SPI controller driver. 1043 1044 config SPI_MXS 1045 tristate "Freescale MXS SPI controller" 1046 depends on ARCH_MXS 1047 select STMP_DEVICE 1048 help 1049 SPI driver for Freescale MXS devices. 1050 1051 config SPI_TEGRA210_QUAD 1052 tristate "NVIDIA Tegra QSPI Controller" 1053 depends on ARCH_TEGRA || COMPILE_TEST 1054 depends on RESET_CONTROLLER 1055 help 1056 QSPI driver for NVIDIA Tegra QSPI Controller interface. This 1057 controller is different from the SPI controller and is available 1058 on Tegra SoCs starting from Tegra210. 1059 1060 config SPI_TEGRA114 1061 tristate "NVIDIA Tegra114 SPI Controller" 1062 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 1063 depends on RESET_CONTROLLER 1064 help 1065 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller 1066 is different than the older SoCs SPI controller and also register interface 1067 get changed with this controller. 1068 1069 config SPI_TEGRA20_SFLASH 1070 tristate "Nvidia Tegra20 Serial flash Controller" 1071 depends on ARCH_TEGRA || COMPILE_TEST 1072 depends on RESET_CONTROLLER 1073 help 1074 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 1075 The main usecase of this controller is to use spi flash as boot 1076 device. 1077 1078 config SPI_TEGRA20_SLINK 1079 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 1080 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 1081 depends on RESET_CONTROLLER 1082 help 1083 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 1084 1085 config SPI_THUNDERX 1086 tristate "Cavium ThunderX SPI controller" 1087 depends on PCI && 64BIT && (ARM64 || COMPILE_TEST) 1088 help 1089 SPI host driver for the hardware found on Cavium ThunderX 1090 SOCs. 1091 1092 config SPI_TOPCLIFF_PCH 1093 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 1094 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1095 help 1096 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 1097 used in some x86 embedded processors. 1098 1099 This driver also supports the ML7213/ML7223/ML7831, a companion chip 1100 for the Atom E6xx series and compatible with the Intel EG20T PCH. 1101 1102 config SPI_UNIPHIER 1103 tristate "Socionext UniPhier SPI Controller" 1104 depends on (ARCH_UNIPHIER || COMPILE_TEST) && OF 1105 depends on HAS_IOMEM 1106 help 1107 This enables a driver for the Socionext UniPhier SoC SCSSI SPI controller. 1108 1109 UniPhier SoCs have SCSSI and MCSSI SPI controllers. 1110 Every UniPhier SoC has SCSSI which supports single channel. 1111 Older UniPhier Pro4/Pro5 also has MCSSI which support multiple channels. 1112 This driver supports SCSSI only. 1113 1114 If your SoC supports SCSSI, say Y here. 1115 1116 config SPI_XCOMM 1117 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 1118 depends on I2C 1119 help 1120 Support for the SPI-I2C bridge found on the Analog Devices 1121 AD-FMCOMMS1-EBZ board. 1122 1123 config SPI_XILINX 1124 tristate "Xilinx SPI controller common module" 1125 depends on HAS_IOMEM 1126 select SPI_BITBANG 1127 help 1128 This exposes the SPI controller IP from the Xilinx EDK. 1129 1130 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 1131 Product Specification document (DS464) for hardware details. 1132 1133 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 1134 1135 config SPI_XLP 1136 tristate "Cavium ThunderX2 SPI controller driver" 1137 depends on ARCH_THUNDER2 || COMPILE_TEST 1138 help 1139 Enable support for the SPI controller on the Cavium ThunderX2. 1140 (Originally on Netlogic XLP SoCs.) 1141 1142 If you have a Cavium ThunderX2 platform say Y here. 1143 If unsure, say N. 1144 1145 config SPI_XTENSA_XTFPGA 1146 tristate "Xtensa SPI controller for xtfpga" 1147 depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST 1148 select SPI_BITBANG 1149 help 1150 SPI driver for xtfpga SPI master controller. 1151 1152 This simple SPI master controller is built into xtfpga bitstreams 1153 and is used to control daughterboard audio codec. It always transfers 1154 16 bit words in SPI mode 0, automatically asserting CS on transfer 1155 start and deasserting on end. 1156 1157 config SPI_ZYNQ_QSPI 1158 tristate "Xilinx Zynq QSPI controller" 1159 depends on ARCH_ZYNQ || COMPILE_TEST 1160 depends on SPI_MEM 1161 help 1162 This enables support for the Zynq Quad SPI controller 1163 in master mode. 1164 This controller only supports SPI memory interface. 1165 1166 config SPI_ZYNQMP_GQSPI 1167 tristate "Xilinx ZynqMP GQSPI controller" 1168 depends on (SPI_MEM && HAS_DMA) || COMPILE_TEST 1169 help 1170 Enables Xilinx GQSPI controller driver for Zynq UltraScale+ MPSoC. 1171 This controller only supports SPI memory interface. 1172 1173 config SPI_AMD 1174 tristate "AMD SPI controller" 1175 depends on SPI_MASTER || COMPILE_TEST 1176 help 1177 Enables SPI controller driver for AMD SoC. 1178 1179 # 1180 # Add new SPI master controllers in alphabetical order above this line 1181 # 1182 1183 comment "SPI Multiplexer support" 1184 1185 config SPI_MUX 1186 tristate "SPI multiplexer support" 1187 select MULTIPLEXER 1188 help 1189 This adds support for SPI multiplexers. Each SPI mux will be 1190 accessible as a SPI controller, the devices behind the mux will appear 1191 to be chip selects on this controller. It is still necessary to 1192 select one or more specific mux-controller drivers. 1193 1194 # 1195 # There are lots of SPI device types, with sensors and memory 1196 # being probably the most widely used ones. 1197 # 1198 comment "SPI Protocol Masters" 1199 1200 config SPI_SPIDEV 1201 tristate "User mode SPI device driver support" 1202 help 1203 This supports user mode SPI protocol drivers. 1204 1205 config SPI_LOOPBACK_TEST 1206 tristate "spi loopback test framework support" 1207 depends on m 1208 help 1209 This enables the SPI loopback testing framework driver 1210 1211 primarily used for development of spi_master drivers 1212 and to detect regressions 1213 1214 config SPI_TLE62X0 1215 tristate "Infineon TLE62X0 (for power switching)" 1216 depends on SYSFS 1217 help 1218 SPI driver for Infineon TLE62X0 series line driver chips, 1219 such as the TLE6220, TLE6230 and TLE6240. This provides a 1220 sysfs interface, with each line presented as a kind of GPIO 1221 exposing both switch control and diagnostic feedback. 1222 1223 # 1224 # Add new SPI protocol masters in alphabetical order above this line 1225 # 1226 1227 endif # SPI_MASTER 1228 1229 # 1230 # SLAVE side ... listening to other SPI masters 1231 # 1232 1233 config SPI_SLAVE 1234 bool "SPI slave protocol handlers" 1235 help 1236 If your system has a slave-capable SPI controller, you can enable 1237 slave protocol handlers. 1238 1239 if SPI_SLAVE 1240 1241 config SPI_SLAVE_TIME 1242 tristate "SPI slave handler reporting boot up time" 1243 help 1244 SPI slave handler responding with the time of reception of the last 1245 SPI message. 1246 1247 config SPI_SLAVE_SYSTEM_CONTROL 1248 tristate "SPI slave handler controlling system state" 1249 help 1250 SPI slave handler to allow remote control of system reboot, power 1251 off, halt, and suspend. 1252 1253 endif # SPI_SLAVE 1254 1255 config SPI_DYNAMIC 1256 def_bool ACPI || OF_DYNAMIC || SPI_SLAVE 1257 1258 endif # SPI 1259