18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_ci# 38c2ecf20Sopenharmony_ci# FSI subsystem 48c2ecf20Sopenharmony_ci# 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_cimenuconfig FSI 78c2ecf20Sopenharmony_ci tristate "FSI support" 88c2ecf20Sopenharmony_ci depends on OF 98c2ecf20Sopenharmony_ci select CRC4 108c2ecf20Sopenharmony_ci help 118c2ecf20Sopenharmony_ci FSI - the FRU Support Interface - is a simple bus for low-level 128c2ecf20Sopenharmony_ci access to POWER-based hardware. 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ciif FSI 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ciconfig FSI_NEW_DEV_NODE 178c2ecf20Sopenharmony_ci bool "Create '/dev/fsi' directory for char devices" 188c2ecf20Sopenharmony_ci default n 198c2ecf20Sopenharmony_ci help 208c2ecf20Sopenharmony_ci This option causes char devices created for FSI devices to be 218c2ecf20Sopenharmony_ci located under a common /dev/fsi/ directory. Set to N unless your 228c2ecf20Sopenharmony_ci userspace has been updated to handle the new location. 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ci Additionally, it also causes the char device names to be offset 258c2ecf20Sopenharmony_ci by one so that chip 0 will have /dev/scom1 and chip1 /dev/scom2 268c2ecf20Sopenharmony_ci to match old userspace expectations. 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci New userspace will use udev rules to generate predictable access 298c2ecf20Sopenharmony_ci symlinks in /dev/fsi/by-path when this option is enabled. 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ciconfig FSI_MASTER_GPIO 328c2ecf20Sopenharmony_ci tristate "GPIO-based FSI master" 338c2ecf20Sopenharmony_ci depends on GPIOLIB 348c2ecf20Sopenharmony_ci select CRC4 358c2ecf20Sopenharmony_ci help 368c2ecf20Sopenharmony_ci This option enables a FSI master driver using GPIO lines. 378c2ecf20Sopenharmony_ci 388c2ecf20Sopenharmony_ciconfig FSI_MASTER_HUB 398c2ecf20Sopenharmony_ci tristate "FSI hub master" 408c2ecf20Sopenharmony_ci help 418c2ecf20Sopenharmony_ci This option enables a FSI hub master driver. Hub is a type of FSI 428c2ecf20Sopenharmony_ci master that is connected to the upstream master via a slave. Hubs 438c2ecf20Sopenharmony_ci allow chaining of FSI links to an arbitrary depth. This allows for 448c2ecf20Sopenharmony_ci a high target device fanout. 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ciconfig FSI_MASTER_AST_CF 478c2ecf20Sopenharmony_ci tristate "FSI master based on Aspeed ColdFire coprocessor" 488c2ecf20Sopenharmony_ci depends on GPIOLIB 498c2ecf20Sopenharmony_ci depends on GPIO_ASPEED 508c2ecf20Sopenharmony_ci select GENERIC_ALLOCATOR 518c2ecf20Sopenharmony_ci help 528c2ecf20Sopenharmony_ci This option enables a FSI master using the AST2400 and AST2500 GPIO 538c2ecf20Sopenharmony_ci lines driven by the internal ColdFire coprocessor. This requires 548c2ecf20Sopenharmony_ci the corresponding machine specific ColdFire firmware to be available. 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ciconfig FSI_MASTER_ASPEED 578c2ecf20Sopenharmony_ci tristate "FSI ASPEED master" 588c2ecf20Sopenharmony_ci depends on HAS_IOMEM 598c2ecf20Sopenharmony_ci help 608c2ecf20Sopenharmony_ci This option enables a FSI master that is present behind an OPB bridge 618c2ecf20Sopenharmony_ci in the AST2600. 628c2ecf20Sopenharmony_ci 638c2ecf20Sopenharmony_ci Enable it for your BMC kernel in an OpenPower or IBM Power system. 648c2ecf20Sopenharmony_ci 658c2ecf20Sopenharmony_ciconfig FSI_SCOM 668c2ecf20Sopenharmony_ci tristate "SCOM FSI client device driver" 678c2ecf20Sopenharmony_ci help 688c2ecf20Sopenharmony_ci This option enables an FSI based SCOM device driver. 698c2ecf20Sopenharmony_ci 708c2ecf20Sopenharmony_ciconfig FSI_SBEFIFO 718c2ecf20Sopenharmony_ci tristate "SBEFIFO FSI client device driver" 728c2ecf20Sopenharmony_ci depends on OF_ADDRESS 738c2ecf20Sopenharmony_ci help 748c2ecf20Sopenharmony_ci This option enables an FSI based SBEFIFO device driver. The SBEFIFO is 758c2ecf20Sopenharmony_ci a pipe-like FSI device for communicating with the self boot engine 768c2ecf20Sopenharmony_ci (SBE) on POWER processors. 778c2ecf20Sopenharmony_ci 788c2ecf20Sopenharmony_ciconfig FSI_OCC 798c2ecf20Sopenharmony_ci tristate "OCC SBEFIFO client device driver" 808c2ecf20Sopenharmony_ci depends on FSI_SBEFIFO 818c2ecf20Sopenharmony_ci help 828c2ecf20Sopenharmony_ci This option enables an SBEFIFO based On-Chip Controller (OCC) device 838c2ecf20Sopenharmony_ci driver. The OCC is a device embedded on a POWER processor that collects 848c2ecf20Sopenharmony_ci and aggregates sensor data from the processor and system. The OCC can 858c2ecf20Sopenharmony_ci provide the raw sensor data as well as perform thermal and power 868c2ecf20Sopenharmony_ci management on the system. 878c2ecf20Sopenharmony_ci 888c2ecf20Sopenharmony_ciendif 89