mirror of
https://github.com/torvalds/linux.git
synced 2024-12-04 18:13:04 +00:00
4720101fab
Fix typos in drivers/ntb/hw/idt/Kconfig.
Use consistent spelling and capitalization.
Fixes: bf2a952d31 ("NTB: Add IDT 89HPESxNTx PCIe-switches support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
config NTB_IDT
|
|
tristate "IDT PCIe-switch Non-Transparent Bridge support"
|
|
depends on PCI
|
|
select HWMON
|
|
help
|
|
This driver supports NTB of capable IDT PCIe-switches.
|
|
|
|
Some of the pre-initializations must be made before IDT PCIe-switch
|
|
exposes its NT-functions correctly. It should be done by either proper
|
|
initialization of EEPROM connected to master SMbus of the switch or
|
|
by BIOS using slave-SMBus interface changing corresponding registers
|
|
value. Evidently it must be done before PCI bus enumeration is
|
|
finished in Linux kernel.
|
|
|
|
First of all partitions must be activated and properly assigned to all
|
|
the ports with NT-functions intended to be activated (see SWPARTxCTL
|
|
and SWPORTxCTL registers). Then all NT-function BARs must be enabled
|
|
with chosen valid aperture. For memory windows related BARs the
|
|
aperture settings shall determine the maximum size of memory windows
|
|
accepted by a BAR. Note that BAR0 must map PCI configuration space
|
|
registers.
|
|
|
|
It's worth to note, that since a part of this driver relies on the
|
|
BAR settings of peer NT-functions, the BAR setups can't be done over
|
|
kernel PCI fixups. That's why the alternative pre-initialization
|
|
techniques like BIOS using SMBus interface or EEPROM should be
|
|
utilized.
|
|
|
|
If unsure, say N.
|
|
|