| #!/bin/bash |
| |
| # shellcheck source=meta-facebook/recipes-fb/obmc_functions/files/fb-common-functions |
| source /usr/libexec/fb-common-functions |
| |
| # Disable SSC |
| SSC_BUS=17 |
| SSC_ADDR=0x09 |
| |
| # Set page 0 to read vendor id |
| if ! i2ctransfer -fy "$SSC_BUS" w2@"$SSC_ADDR" 0xfd 0x00 2>/dev/null; then |
| echo "SSC device not found, skip disabling SSC" >&2 |
| else |
| read -r SSC_VENDOR_ID0 SSC_VENDOR_ID1 <<< "$(i2ctransfer -fy "$SSC_BUS" w1@"$SSC_ADDR" 0x00 r2)" |
| |
| if [ "$SSC_VENDOR_ID0" = "0x33" ] && [ "$SSC_VENDOR_ID1" = "0x10" ]; then |
| # Renesas |
| i2ctransfer -fy "$SSC_BUS" w2@"$SSC_ADDR" 0xfd 0x03 |
| i2ctransfer -fy "$SSC_BUS" w2@"$SSC_ADDR" 0x07 0x00 |
| elif [ "$SSC_VENDOR_ID0" = "0x8b" ] && [ "$SSC_VENDOR_ID1" = "0x03" ]; then |
| # TI |
| i2ctransfer -fy "$SSC_BUS" w2@"$SSC_ADDR" 0xfd 0x00 |
| i2ctransfer -fy "$SSC_BUS" w2@"$SSC_ADDR" 0x3c 0x20 |
| else |
| echo "unknown SSC vendor id ($SSC_VENDOR_ID0/$SSC_VENDOR_ID1), skip disabling SSC" >&2 |
| fi |
| fi |
| |
| # Create /dev/mem |
| if [ ! -c /dev/mem ]; then |
| /bin/mknod /dev/mem c 1 1 |
| fi |
| |
| devmem 0x1e6ee000 32 0xff00ba55 |
| devmem 0x1e6e2454 32 0xaa000000 |
| devmem 0x1e6e2094 32 0x00000003 |
