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This commit is contained in:
Gregory Nutt 2014-11-17 12:48:01 -06:00
parent c0c86da44c
commit 16cd0cce81
1 changed files with 15 additions and 2 deletions
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17
configs/sama5d4-ek/README.txt
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@ -3668,8 +3668,21 @@ Configurations
the warning in the section "Information Common to All Configurations"
for further information.
3. This configuration executes from DRAM and must be loaded via some
bootloader. I use DRAMBOOT as described above.
3. EMAC0 and EMAC1 connect KSZ8081RNB PHYs and are available at the
ETH0 and ETH1 connector, respectively.
The ETH1 signals go through line drivers that are enabled via the
board LCD_ETH1_CONFIG signal. Jumper JP2 selects either the EMAC1
or the LCD by controlling the the LCD_ETH1_CONFIG signal on the
board.
- JP2 open, LCD_ETH1_CONFIG pulled high:
LCD_ETH1_CONFIG=1: LCD 5v enable(LCD_DETECT#=0); ETH1 disable
- JP2 closed, LCD_ETH1_CONFIG grounded:
LCD_ETH1_CONFIG=0: LCD 5v disable; ETH1 enable
STATUS: