rpi_inst.conf revision 1.13 
1# $NetBSD: rpi_inst.conf,v 1.13 2020/01/01 14:16:51 skrll Exp $
2# Raspberry Pi customization script used by mkimage
3#
4
5board=rpi_inst
6kerneldir=${KERNOBJDIR}/RPI_INSTALL
7kernel=$kerneldir/netbsd-RPI_INSTALL.img
8
9. ${DIR}/conf/evbarm.conf
10
11image=$HOME/${board}.img
12
13swap=8
14extra=8		# spare space
15boot=112
16init=8
17
18size=$(( 10485760 + ${swap} * 1024 * 512 + ${boot} * 1024 * 512 + ${init} * 1024 * 512 ))
19msdosid=12
20
21make_label() {
22	# compute all sizes in terms of sectors
23	local totalsize=$(( ${newsize} * 1024 * 2 / 512 ))
24
25	local swapsize=$(( ${swap} * 1024 ))
26	local bootsize=$(( ${boot} * 1024 ))
27
28	local bootoffset=$(( ${init} * 1024 ))
29	local swapoffset=$(( ${bootoffset} + ${bootsize} ))
30
31	local asize=$(( ${totalsize} - ${swapsize} - ${bootsize} - ${bootoffset} ))
32	local aoffset=$(( ${swapoffset} + ${swapsize} ))
33
34	local bps=512
35	local spt=32
36	local tpc=64
37	local spc=2048
38	local cylinders=$(( ${totalsize} / ${spc} ))
39
40	cat << EOF
41type: SCSI
42disk: STORAGE DEVICE
43label: fictitious
44flags: removable
45bytes/sector: ${bps}
46sectors/track: ${spt}
47tracks/cylinder: ${tpc}
48sectors/cylinder: ${spc}
49cylinders: ${cylinders}
50total sectors: ${totalsize}
51rpm: 3600
52interleave: 1
53trackskew: 0
54cylinderskew: 0
55headswitch: 0           # microseconds
56track-to-track seek: 0  # microseconds
57drivedata: 0 
58
598 partitions:
60#     size         offset        fstype [fsize bsize cpg/sgs]
61 a:   ${asize}     ${aoffset}    4.2BSD  ${fsize} ${bsize} 0  # 
62 b:   ${swapsize}  ${swapoffset} swap                         #
63 d:   ${totalsize} 0             unused      0     0          #
64 e:   ${bootsize}  ${bootoffset} MSDOS                        #
65EOF
66}
67
68customize() {
69	echo "${bar} creating directories ${bar}"
70	mkdir ${mnt}/proc ${mnt}/kern
71}
72
73make_fstab() {
74	:
75}
76
77firmwaredir=$src/external/broadcom/rpi-firmware/dist
78firmwarefiles="LICENCE.broadcom bootcode.bin fixup.dat fixup_cd.dat start.elf start_cd.elf"
79dtbs="$(${MAKE} -C ${kerneldir} -v DTB)"
80
81populate() {
82	cat > ${mnt}/boot/cmdline.txt << EOF
83root=ld0a console=fb
84#fb=1280x1024		# to select a mode, otherwise try EDID 
85#fb=disable		# to disable fb completely
86EOF
87
88	cat > ${mnt}/boot/config.txt << EOF
89#
90upstream_kernel=1
91# UART settings, see https://www.raspberrypi.org/documentation/configuration/uart.md
92enable_uart=1            
93force_turbo=0
94EOF
95
96	if [ ! -f ${kernel} ]; then
97		echo ${PROG}: Missing ${kernel} 1>&2
98		exit 1
99	fi
100
101	echo "${bar} installing kernel ${bar}"
102	case ${kernel} in
103	*.gz)
104		echo " ${kernel} uncompressed to kernel.img"
105		${GZIP_CMD} -dc ${kernel} > ${mnt}/boot/kernel.img
106		;;
107	*)
108		echo " ${kernel} copied"
109		cp ${kernel} ${mnt}/boot/kernel.img
110		;;
111	esac || fail "copy of ${kernel} to  ${mnt}/boot/kernel.img failed"
112
113	echo "${bar} installing firmware files ${bar}"
114	(cd ${mnt}/boot &&
115		for f in ${firmwarefiles}; do
116			echo " $f"
117			cp ${firmwaredir}/${f} . || exit 1
118		done
119		for f in ${dtbs}; do
120			echo " $f"
121			cp ${kerneldir}/${f} . || exit 1
122		done
123	) || fail "Copy of firmware to ${mnt}/boot failed"
124
125}
126