1# 2# FSI subsystem 3# 4 5menuconfig FSI 6 tristate "FSI support" 7 depends on OF 8 select CRC4 9 ---help--- 10 FSI - the FRU Support Interface - is a simple bus for low-level 11 access to POWER-based hardware. 12 13if FSI 14 15config FSI_NEW_DEV_NODE 16 bool "Create '/dev/fsi' directory for char devices" 17 default n 18 ---help--- 19 This option causes char devices created for FSI devices to be 20 located under a common /dev/fsi/ directory. Set to N unless your 21 userspace has been updated to handle the new location. 22 23 Additionally, it also causes the char device names to be offset 24 by one so that chip 0 will have /dev/scom1 and chip1 /dev/scom2 25 to match old userspace expectations. 26 27 New userspace will use udev rules to generate predictable access 28 symlinks in /dev/fsi/by-path when this option is enabled. 29 30config FSI_MASTER_GPIO 31 tristate "GPIO-based FSI master" 32 depends on GPIOLIB 33 select CRC4 34 ---help--- 35 This option enables a FSI master driver using GPIO lines. 36 37config FSI_MASTER_HUB 38 tristate "FSI hub master" 39 ---help--- 40 This option enables a FSI hub master driver. Hub is a type of FSI 41 master that is connected to the upstream master via a slave. Hubs 42 allow chaining of FSI links to an arbitrary depth. This allows for 43 a high target device fanout. 44 45config FSI_MASTER_AST_CF 46 tristate "FSI master based on Aspeed ColdFire coprocessor" 47 depends on GPIOLIB 48 depends on GPIO_ASPEED 49 select GENERIC_ALLOCATOR 50 ---help--- 51 This option enables a FSI master using the AST2400 and AST2500 GPIO 52 lines driven by the internal ColdFire coprocessor. This requires 53 the corresponding machine specific ColdFire firmware to be available. 54 55config FSI_SCOM 56 tristate "SCOM FSI client device driver" 57 ---help--- 58 This option enables an FSI based SCOM device driver. 59 60config FSI_SBEFIFO 61 tristate "SBEFIFO FSI client device driver" 62 depends on OF_ADDRESS 63 ---help--- 64 This option enables an FSI based SBEFIFO device driver. The SBEFIFO is 65 a pipe-like FSI device for communicating with the self boot engine 66 (SBE) on POWER processors. 67 68config FSI_OCC 69 tristate "OCC SBEFIFO client device driver" 70 depends on FSI_SBEFIFO 71 ---help--- 72 This option enables an SBEFIFO based On-Chip Controller (OCC) device 73 driver. The OCC is a device embedded on a POWER processor that collects 74 and aggregates sensor data from the processor and system. The OCC can 75 provide the raw sensor data as well as perform thermal and power 76 management on the system. 77 78endif 79