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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/i2c/busses/scx200_acb.rst | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/i2c/busses/scx200_acb.rst')
-rw-r--r-- | Documentation/i2c/busses/scx200_acb.rst | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/i2c/busses/scx200_acb.rst b/Documentation/i2c/busses/scx200_acb.rst new file mode 100644 index 000000000..8dc7c3525 --- /dev/null +++ b/Documentation/i2c/busses/scx200_acb.rst @@ -0,0 +1,37 @@ +======================== +Kernel driver scx200_acb +======================== + +Author: Christer Weinigel <wingel@nano-system.com> + +The driver supersedes the older, never merged driver named i2c-nscacb. + +Module Parameters +----------------- + +* base: up to 4 ints + Base addresses for the ACCESS.bus controllers on SCx200 and SC1100 devices + + By default the driver uses two base addresses 0x820 and 0x840. + If you want only one base address, specify the second as 0 so as to + override this default. + +Description +----------- + +Enable the use of the ACCESS.bus controller on the Geode SCx200 and +SC1100 processors and the CS5535 and CS5536 Geode companion devices. + +Device-specific notes +--------------------- + +The SC1100 WRAP boards are known to use base addresses 0x810 and 0x820. +If the scx200_acb driver is built into the kernel, add the following +parameter to your boot command line:: + + scx200_acb.base=0x810,0x820 + +If the scx200_acb driver is built as a module, add the following line to +a configuration file in /etc/modprobe.d/ instead:: + + options scx200_acb base=0x810,0x820 |