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author | Timothy Pearson <tpearson@raptorengineering.com> | 2017-08-23 15:54:21 -0500 |
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committer | Timothy Pearson <tpearson@raptorengineering.com> | 2017-08-23 15:54:21 -0500 |
commit | 0223e595f4033e91e93403a7317bcc9e47676b8f (patch) | |
tree | 2ccd7127bc343f82456b76eeb0da2d380f6eaf65 /doc/README.switch_config | |
download | ast2050-uboot-0223e595f4033e91e93403a7317bcc9e47676b8f.zip ast2050-uboot-0223e595f4033e91e93403a7317bcc9e47676b8f.tar.gz |
Initial import of modified u-boot tree
Original upstream URL:
git://git.denx.de/u-boot.git
Original upstream GIT hash:
62c175fbb8a0f9a926c88294ea9f7e88eb898f6c
Diffstat (limited to 'doc/README.switch_config')
-rw-r--r-- | doc/README.switch_config | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/doc/README.switch_config b/doc/README.switch_config new file mode 100644 index 0000000..f890373 --- /dev/null +++ b/doc/README.switch_config @@ -0,0 +1,25 @@ +On the enbw_cmc board is a KSZ8864RMN switch which needs +configured through spi before working. This is done on +startup from u-boot through a config file stored at an +address specified in the "hwconfig" environment variable, +subcommand "config". + +For example on the enbw_cmc board: + +hwconfig=switch:lan=on,pwl=off,config=0x60160000 + +The file has the following structure: + +- a comment starts with a '#' or a ';' and ends with a newline +- The switch needs for its config a reg/value pair, so we + have two columns in the file: + reg : contains the register address + value: contains a 8 bit register value + This 2 columns are seperated through space or tab. + +example (minimal configuration on the enbw_cmc board): + +;reg value comment +;----------------------------------------- +0x01 0x00 +0x01 0x01 ; Start Switch with this configuration |