projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 0508ad1f JK |
2 | # |
| 3 | # FSI subsystem | |
| 4 | # | |
| 5 | ||
| baa8b941 | 6 | menuconfig FSI |
| 0508ad1f | 7 | tristate "FSI support" |
| f6a2f8eb | 8 | depends on OF |
| 2b545cd8 | 9 | select CRC4 |
| a7f7f624 | 10 | help |
| 0508ad1f JK |
11 | FSI - the FRU Support Interface - is a simple bus for low-level |
| 12 | access to POWER-based hardware. | |
| ac0385d9 CB |
13 | |
| 14 | if FSI | |
| 15 | ||
| 0ab5fe53 BH |
16 | config FSI_NEW_DEV_NODE |
| 17 | bool "Create '/dev/fsi' directory for char devices" | |
| 18 | default n | |
| a7f7f624 | 19 | help |
| 0ab5fe53 BH |
20 | This option causes char devices created for FSI devices to be |
| 21 | located under a common /dev/fsi/ directory. Set to N unless your | |
| 22 | userspace has been updated to handle the new location. | |
| 23 | ||
| 24 | Additionally, it also causes the char device names to be offset | |
| 25 | by one so that chip 0 will have /dev/scom1 and chip1 /dev/scom2 | |
| 26 | to match old userspace expectations. | |
| 27 | ||
| 28 | New userspace will use udev rules to generate predictable access | |
| 29 | symlinks in /dev/fsi/by-path when this option is enabled. | |
| 30 | ||
| ac0385d9 CB |
31 | config FSI_MASTER_GPIO |
| 32 | tristate "GPIO-based FSI master" | |
| 33 | depends on GPIOLIB | |
| 34 | select CRC4 | |
| a7f7f624 | 35 | help |
| ac0385d9 CB |
36 | This option enables a FSI master driver using GPIO lines. |
| 37 | ||
| 7f9e8f76 CB |
38 | config FSI_MASTER_HUB |
| 39 | tristate "FSI hub master" | |
| a7f7f624 | 40 | help |
| 7f9e8f76 CB |
41 | This option enables a FSI hub master driver. Hub is a type of FSI |
| 42 | master that is connected to the upstream master via a slave. Hubs | |
| 43 | allow chaining of FSI links to an arbitrary depth. This allows for | |
| 44 | a high target device fanout. | |
| 45 | ||
| 6a794a27 BH |
46 | config FSI_MASTER_AST_CF |
| 47 | tristate "FSI master based on Aspeed ColdFire coprocessor" | |
| 48 | depends on GPIOLIB | |
| 49 | depends on GPIO_ASPEED | |
| 64999fa7 | 50 | select GENERIC_ALLOCATOR |
| a7f7f624 | 51 | help |
| 6a794a27 BH |
52 | This option enables a FSI master using the AST2400 and AST2500 GPIO |
| 53 | lines driven by the internal ColdFire coprocessor. This requires | |
| 54 | the corresponding machine specific ColdFire firmware to be available. | |
| 55 | ||
| 606397d6 JS |
56 | config FSI_MASTER_ASPEED |
| 57 | tristate "FSI ASPEED master" | |
| ea3d147a | 58 | depends on HAS_IOMEM |
| 606397d6 JS |
59 | help |
| 60 | This option enables a FSI master that is present behind an OPB bridge | |
| 61 | in the AST2600. | |
| 62 | ||
| 63 | Enable it for your BMC kernel in an OpenPower or IBM Power system. | |
| 64 | ||
| 680ca6dc CB |
65 | config FSI_SCOM |
| 66 | tristate "SCOM FSI client device driver" | |
| a7f7f624 | 67 | help |
| 680ca6dc CB |
68 | This option enables an FSI based SCOM device driver. |
| 69 | ||
| 9f4a8a2d BH |
70 | config FSI_SBEFIFO |
| 71 | tristate "SBEFIFO FSI client device driver" | |
| 32f7f89d | 72 | depends on OF_ADDRESS |
| a7f7f624 | 73 | help |
| 9f4a8a2d BH |
74 | This option enables an FSI based SBEFIFO device driver. The SBEFIFO is |
| 75 | a pipe-like FSI device for communicating with the self boot engine | |
| 76 | (SBE) on POWER processors. | |
| 77 | ||
| 7ed98ddd EJ |
78 | config FSI_OCC |
| 79 | tristate "OCC SBEFIFO client device driver" | |
| 80 | depends on FSI_SBEFIFO | |
| a7f7f624 | 81 | help |
| 7ed98ddd EJ |
82 | This option enables an SBEFIFO based On-Chip Controller (OCC) device |
| 83 | driver. The OCC is a device embedded on a POWER processor that collects | |
| 84 | and aggregates sensor data from the processor and system. The OCC can | |
| 85 | provide the raw sensor data as well as perform thermal and power | |
| 86 | management on the system. | |
| 87 | ||
| ac0385d9 | 88 | endif |