Messages in this thread | | | Date | Wed, 18 Jan 2023 12:05:50 +0000 | Subject | Re: [PATCH v3 1/8] dt-bindings: arm: qcom: Document MSM8939 SoC binding | From | Bryan O'Donoghue <> |
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On 18/01/2023 08:47, Stephan Gerhold wrote: > On Tue, Jan 17, 2023 at 02:48:39AM +0000, Bryan O'Donoghue wrote: >> Document the MSM8939 and supported boards in upstream Sony "Tulip" M4 Aqua >> and Square APQ8039 T2. >> >> MSM8939 is one of the older SoCs so we need to expand the list of >> qcom,board-ids to allow for the bootloader DTS board-id matching >> dependency. >> > > The original LK bootloaders cannot boot your msm8939.dtsi correctly, > because a spin-table implementation is required to get the other CPU > cores up. This means that a modified bootloader is always needed from > the upstream point of view, since I doubt anyone wants to use these > devices with a single core only. lk2nd (as the primary spin-table > implementation right now) has never required qcom,board-ids and any > custom LK would be easy to patch to ignore these.
The system boots just fine with the shipped LK. We get display, USB, SD, WiFi.
We just don't support booting the second cluster via any other means than lk2nd right now.
You could also not use lk2nd, stick with your default LK and import LPM patches.
Default LK: root@linaro-alip:~# cat /proc/cpuinfo processor : 0 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
root@linaro-alip:~# iw wlan0 info
Interface wlan0 ifindex 6 wdev 0x1 addr e2:b9:a0:ef:3a:ba type managed wiphy 0 channel 52 (5260 MHz), width: 80 MHz, center1: 5290 MHz txpower 20.00 dBm multicast TXQ: qsz-byt qsz-pkt flows drops marks overlmt hashcol tx-bytes tx-packets 0 0 0 0 0 0 0 0 0 root@linaro-alip:~# uname -a Linux linaro-alip 6.2.0-rc4-next-20230116-00029-gf1a46ff9e812-dirty #392 SMP PREEMPT Tue Jan 17 23:46:42 GMT 2023 aarch64 GNU/Linux
LK2ND: root@linaro-alip:~# cat /proc/cpuinfo processor : 0 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
processor : 1 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
processor : 2 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
processor : 3 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
processor : 4 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
processor : 5 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
processor : 6 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
processor : 7 BogoMIPS : 38.40 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
root@linaro-alip:~# iw wlan0 info Interface wlan0 ifindex 6 wdev 0x1 addr 02:00:0e:66:5c:21 type managed wiphy 0 channel 64 (5320 MHz), width: 80 MHz, center1: 5290 MHz txpower 20.00 dBm multicast TXQ: qsz-byt qsz-pkt flows drops marks overlmt hashcol tx-bytes tx-packets 0 0 0 0 0 0 0 0 0 root@linaro-alip:~# uname -a Linux linaro-alip 6.2.0-rc4-next-20230116-00029-gf1a46ff9e812-dirty #392 SMP PREEMPT Tue Jan 17 23:46:42 GMT 2023 aarch64 GNU/Linux
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