diff options
| -rwxr-xr-x | scripts/fixup-dts | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/scripts/fixup-dts b/scripts/fixup-dts index 278b835..37c2105 100755 --- a/scripts/fixup-dts +++ b/scripts/fixup-dts @@ -105,6 +105,31 @@ if [ `grep -c 'stdout-path' ${dts}` -eq 0 ]; then fi +# FPGA targets need a 0x400000 byte offset into their SPI flash + +# Is the target an FPGA? +if [ `echo ${dts} | grep -c 'arty'` -ne 0 -o `echo ${dts} | grep -c 'fpga'` -ne 0 ] ; then + # Is there a metal,entry property in the chosen node? + if [ `grep -c 'metal,entry' ${dts}` -eq 0 ] ; then + echo "$0: FPGA target needs metal,entry property to set boot offset." + + # Find the SPI device with the lowest base address + first_spi_node=`grep -oE "spi@[[:xdigit:]]+?" ${dts} | sort | head -n 1` + + # Get the DTS node label of that SPI device + spi_entry_label=`grep -oE "[^[:space:]]+?:\s+?${first_spi_node}" ${dts} | cut -d ':' -f 1` + + if [ `grep -c 'chosen' ${dts}` -eq 0 ]; then + ${SED} -i "/cpus/i chosen {\n};" ${dts} + fi + + ${SED} -i "/chosen/a metal,entry = <&${spi_entry_label} 0x400000>;" ${dts} + + echo -e "$0: \tAdded metal,entry for SPI node ${first_spi_node} with label ${spi_entry_label}" + fi +fi + + # Add a test memory node if one doesn't exist if [ `grep -c 'sifive,testram0' ${dts}` -eq 0 ]; then |