10508ad1fSJeremy Kerr# 20508ad1fSJeremy Kerr# FSI subsystem 30508ad1fSJeremy Kerr# 40508ad1fSJeremy Kerr 5baa8b941SVincent Legollmenuconfig FSI 60508ad1fSJeremy Kerr tristate "FSI support" 7f6a2f8ebSJeremy Kerr depends on OF 82b545cd8SJeremy Kerr select CRC4 90508ad1fSJeremy Kerr ---help--- 100508ad1fSJeremy Kerr FSI - the FRU Support Interface - is a simple bus for low-level 110508ad1fSJeremy Kerr access to POWER-based hardware. 12ac0385d9SChristopher Bostic 13ac0385d9SChristopher Bosticif FSI 14ac0385d9SChristopher Bostic 15*0ab5fe53SBenjamin Herrenschmidtconfig FSI_NEW_DEV_NODE 16*0ab5fe53SBenjamin Herrenschmidt bool "Create '/dev/fsi' directory for char devices" 17*0ab5fe53SBenjamin Herrenschmidt default n 18*0ab5fe53SBenjamin Herrenschmidt ---help--- 19*0ab5fe53SBenjamin Herrenschmidt This option causes char devices created for FSI devices to be 20*0ab5fe53SBenjamin Herrenschmidt located under a common /dev/fsi/ directory. Set to N unless your 21*0ab5fe53SBenjamin Herrenschmidt userspace has been updated to handle the new location. 22*0ab5fe53SBenjamin Herrenschmidt 23*0ab5fe53SBenjamin Herrenschmidt Additionally, it also causes the char device names to be offset 24*0ab5fe53SBenjamin Herrenschmidt by one so that chip 0 will have /dev/scom1 and chip1 /dev/scom2 25*0ab5fe53SBenjamin Herrenschmidt to match old userspace expectations. 26*0ab5fe53SBenjamin Herrenschmidt 27*0ab5fe53SBenjamin Herrenschmidt New userspace will use udev rules to generate predictable access 28*0ab5fe53SBenjamin Herrenschmidt symlinks in /dev/fsi/by-path when this option is enabled. 29*0ab5fe53SBenjamin Herrenschmidt 30ac0385d9SChristopher Bosticconfig FSI_MASTER_GPIO 31ac0385d9SChristopher Bostic tristate "GPIO-based FSI master" 32ac0385d9SChristopher Bostic depends on GPIOLIB 33ac0385d9SChristopher Bostic select CRC4 34ac0385d9SChristopher Bostic ---help--- 35ac0385d9SChristopher Bostic This option enables a FSI master driver using GPIO lines. 36ac0385d9SChristopher Bostic 377f9e8f76SChristopher Bosticconfig FSI_MASTER_HUB 387f9e8f76SChristopher Bostic tristate "FSI hub master" 397f9e8f76SChristopher Bostic ---help--- 407f9e8f76SChristopher Bostic This option enables a FSI hub master driver. Hub is a type of FSI 417f9e8f76SChristopher Bostic master that is connected to the upstream master via a slave. Hubs 427f9e8f76SChristopher Bostic allow chaining of FSI links to an arbitrary depth. This allows for 437f9e8f76SChristopher Bostic a high target device fanout. 447f9e8f76SChristopher Bostic 456a794a27SBenjamin Herrenschmidtconfig FSI_MASTER_AST_CF 466a794a27SBenjamin Herrenschmidt tristate "FSI master based on Aspeed ColdFire coprocessor" 476a794a27SBenjamin Herrenschmidt depends on GPIOLIB 486a794a27SBenjamin Herrenschmidt depends on GPIO_ASPEED 496a794a27SBenjamin Herrenschmidt ---help--- 506a794a27SBenjamin Herrenschmidt This option enables a FSI master using the AST2400 and AST2500 GPIO 516a794a27SBenjamin Herrenschmidt lines driven by the internal ColdFire coprocessor. This requires 526a794a27SBenjamin Herrenschmidt the corresponding machine specific ColdFire firmware to be available. 536a794a27SBenjamin Herrenschmidt 54680ca6dcSChristopher Bosticconfig FSI_SCOM 55680ca6dcSChristopher Bostic tristate "SCOM FSI client device driver" 56680ca6dcSChristopher Bostic ---help--- 57680ca6dcSChristopher Bostic This option enables an FSI based SCOM device driver. 58680ca6dcSChristopher Bostic 599f4a8a2dSBenjamin Herrenschmidtconfig FSI_SBEFIFO 609f4a8a2dSBenjamin Herrenschmidt tristate "SBEFIFO FSI client device driver" 6132f7f89dSGuenter Roeck depends on OF_ADDRESS 629f4a8a2dSBenjamin Herrenschmidt ---help--- 639f4a8a2dSBenjamin Herrenschmidt This option enables an FSI based SBEFIFO device driver. The SBEFIFO is 649f4a8a2dSBenjamin Herrenschmidt a pipe-like FSI device for communicating with the self boot engine 659f4a8a2dSBenjamin Herrenschmidt (SBE) on POWER processors. 669f4a8a2dSBenjamin Herrenschmidt 67ac0385d9SChristopher Bosticendif 68