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| author | Robert Lippert <roblip@gmail.com> | 2017-06-02 23:53:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-03 12:15:18 +0200 |
| commit | 9f4f9ae81d0affc182f54dd00285ddb90e0b3ae1 (patch) | |
| tree | 2ae6c250044d7fa515cd13f00276b9ddd49d409a /drivers/misc/Kconfig | |
| parent | memory: ti-aemif: Handle return value of clk_prepare_enable (diff) | |
| download | linux-9f4f9ae81d0affc182f54dd00285ddb90e0b3ae1.tar.xz linux-9f4f9ae81d0affc182f54dd00285ddb90e0b3ae1.zip | |
drivers/misc: add Aspeed LPC snoop driver
This driver enables the LPC snoop hardware on the ASPEED BMC
which generates an interrupt upon every write to an I/O port
by the host.
This is typically used to monitor BIOS boot progress by listening
to well-known debug port 80h.
The functionality in this commit just saves all snooped values
to a circular 2K buffer in the kernel, subsequent commits can
act on the values to do things with them.
Signed-off-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/Kconfig')
| -rw-r--r-- | drivers/misc/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 07bbd4cc1852..8136dc7e863d 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -490,6 +490,14 @@ config ASPEED_LPC_CTRL ioctl()s, the driver also provides a read/write interface to a BMC ram region where the host LPC read/write region can be buffered. +config ASPEED_LPC_SNOOP + tristate "Aspeed ast2500 HOST LPC snoop support" + depends on (ARCH_ASPEED || COMPILE_TEST) && REGMAP && MFD_SYSCON + help + Provides a driver to control the LPC snoop interface which + allows the BMC to listen on and save the data written by + the host to an arbitrary LPC I/O port. + config PCI_ENDPOINT_TEST depends on PCI select CRC32 |