Commit df155672 authored by Marek Vasut's avatar Marek Vasut Committed by Jagannadha Sutradharudu Teki

spi: altera: Add short note about EPCS/EPCQx1

Add short documentation-alike note on how to use the Altera SPI
driver with the EPCS/EPCQx1 FPGA IP block on SoCFPGA Cyclone V
into doc/SPI/README.altera_spi
Signed-off-by: default avatarMarek Vasut <>
Cc: Chin Liang See <>
Cc: Dinh Nguyen <>
Cc: Albert Aribaud <>
Cc: Pavel Machek <>
Cc: Jagannadha Sutradharudu Teki <>
Acked-by: default avatarPavel Machek <>
Reviewed-by: default avatarJagannadha Sutradharudu Teki <>
parent bc76b821
SoCFPGA EPCS/EPCQx1 mini howto:
- Instantiate EPCS/EPCQx1 Serial flash controller in QSys and rebuild
- The controller base address is the "Base" in QSys + 0x400
- Set MSEL[4:0]=10010 (AS Standard)
- Load the bitstream into FPGA, enable bridges
- Only then will the driver work
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