Hi. I'm trying to replace LK with U-boot on MSM8016 (Dragonboard410c) The kernel loads successfully however the secondary CPU's fails to boot. (log below) I assume I have some low level initialization that has some effect on that. Anyone has any idea what could be the problem or where to add some debug messages ? Thanks, Ramon. Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.14.15+linaro+ (rfried@lx-rfried) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #3 SMP PREEMPT Thu May 3 15:13:26 IDT 2018 [ 0.000000] Boot CPU: AArch64 Processor [410fd030] [ 0.000000] Machine model: Qualcomm Technologies, Inc. APQ 8016 SBC [ 0.000000] efi: Getting EFI parameters from FDT: [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 16 MiB at 0x00000000bc800000 [ 0.000000] NUMA: No NUMA configuration found [ 0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x00000000bd9fffff] [ 0.000000] NUMA: NODE_DATA [mem 0xbd996d00-0xbd9987ff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000080000000-0x00000000bd9fffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x0000000085ffffff] [ 0.000000] node 0: [mem 0x0000000089f00000-0x000000008e9fffff] [ 0.000000] node 0: [mem 0x000000008eb00000-0x00000000bd9fffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000bd9fffff] [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv1.0 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: MIGRATE_INFO_TYPE not supported. [ 0.000000] percpu: Embedded 23 pages/cpu @ffff80003d933000 s55704 r8192 d30312 u94208 [ 0.000000] Detected VIPT I-cache on CPU0 [ 0.000000] CPU features: enabling workaround for ARM errata 826319, 827319, 824069 [ 0.000000] CPU features: enabling workaround for ARM erratum 845719 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 232344 [ 0.000000] Policy zone: DMA [ 0.000000] Kernel command line: root=/dev/mmcblk0p10 rw rootwait console=ttyMSM0,115200n8 text [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 892084K/944128K available (10364K kernel code, 1556K rwdata, 4828K rodata, 1152K init, 422K bss, 35660K reserved, 16384K cma-reserved) [ 0.000000] Virtual kernel memory layout: [ 0.000000] modules : 0xffff000000000000 - 0xffff000008000000 ( 128 MB) [ 0.000000] vmalloc : 0xffff000008000000 - 0xffff7dffbfff0000 (129022 GB) [ 0.000000] .text : 0xffff000008080000 - 0xffff000008aa0000 ( 10368 KB) [ 0.000000] .rodata : 0xffff000008aa0000 - 0xffff000008f60000 ( 4864 KB) [ 0.000000] .init : 0xffff000008f60000 - 0xffff000009080000 ( 1152 KB) [ 0.000000] .data : 0xffff000009080000 - 0xffff000009205200 ( 1557 KB) [ 0.000000] .bss : 0xffff000009205200 - 0xffff00000926ec68 ( 423 KB) [ 0.000000] fixed : 0xffff7dfffe7fb000 - 0xffff7dfffec00000 ( 4116 KB) [ 0.000000] PCI I/O : 0xffff7dfffee00000 - 0xffff7dffffe00000 ( 16 MB) [ 0.000000] vmemmap : 0xffff7e0000000000 - 0xffff800000000000 ( 2048 GB maximum) [ 0.000000] 0xffff7e0000000000 - 0xffff7e0000f68000 ( 15 MB actual) [ 0.000000] memory : 0xffff800000000000 - 0xffff80003da00000 ( 986 MB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4. [ 0.000000] Tasks RCU enabled. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4 [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] arch_timer: cp15 and mmio timer(s) running at 19.20MHz (virt/virt). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns [ 0.000005] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns [ 0.000732] Console: colour dummy device 80x25 [ 0.000794] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=76800) [ 0.000807] pid_max: default: 32768 minimum: 301 [ 0.000898] Security Framework initialized [ 0.001440] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.001712] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.001746] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes) [ 0.001763] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes) [ 0.015254] ASID allocator initialised with 65536 entries [ 0.023243] Hierarchical SRCU implementation. [ 0.035880] EFI services will not be available. [ 0.043807] smp: Bringing up secondary CPUs ... [ 1.089047] CPU1: failed to come online [ 1.089056] CPU1: failed in unknown state : 0x0 [ 2.146282] CPU2: failed to come online [ 2.146291] CPU2: failed in unknown state : 0x0 [ 3.203521] CPU3: failed to come online [ 3.203529] CPU3: failed in unknown state : 0x0 [ 3.203585] smp: Brought up 1 node, 1 CPU [ 3.203591] SMP: Total of 1 processors activated. [ 3.203601] CPU features: detected feature: 32-bit EL0 Support [ 3.203725] CPU: All CPU(s) started at EL1 [ 3.203737] alternatives: patching kernel code [ 3.204356] devtmpfs: initialized [ 3.215384] random: get_random_u32 called from bucket_table_alloc+0x108/0x258 with crng_init=0 [ 3.219778] Registered cp15_barrier emulation handler [ 3.219793] Registered setend emulation handler [ 3.220136] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 3.220187] futex hash table entries: 1024 (order: 5, 131072 bytes) [ 3.220954] pinctrl core: initialized pinctrl subsystem [ 3.222948] DMI not present or invalid. [ 3.223305] NET: Registered protocol family 16 [ 3.227621] random: fast init done [ 3.230769] cpuidle: using governor menu [ 3.232595] vdso: 2 pages (1 code @ ffff000008aa6000, 1 data @ ffff000009085000) [ 3.232615] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 3.233847] DMA: preallocated 256 KiB pool for atomic allocations [ 3.234873] Serial: AMBA PL011 UART driver [ 3.313117] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 3.324927] ACPI: Interpreter disabled. [ 3.327452] vgaarb: loaded [ 3.327920] SCSI subsystem initialized [ 3.333425] usbcore: registered new interface driver usbfs [ 3.333528] usbcore: registered new interface driver hub [ 3.333689] usbcore: registered new device driver usb [ 3.335403] pps_core: LinuxPPS API ver. 1 registered [ 3.335412] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@xxxxxxxx> [ 3.335479] PTP clock support registered [ 3.335835] EDAC MC: Ver: 3.0.0 [ 3.337293] dmi: Firmware registration failed. [ 3.341455] Advanced Linux Sound Architecture Driver Initialized. [ 3.343201] clocksource: Switched to clocksource arch_sys_counter [ 3.343366] VFS: Disk quotas dquot_6.6.0 [ 3.343424] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 3.343624] pnp: PnP ACPI: disabled [ 3.358912] NET: Registered protocol family 2 [ 3.359932] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 3.360042] TCP bind hash table entries: 8192 (order: 5, 131072 bytes) [ 3.360197] TCP: Hash tables configured (established 8192 bind 8192) [ 3.360337] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 3.360379] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 3.360534] NET: Registered protocol family 1 [ 3.369734] RPC: Registered named UNIX socket transport module. [ 3.369743] RPC: Registered udp transport module. [ 3.369749] RPC: Registered tcp transport module. [ 3.369755] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.370447] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available [ 3.370756] kvm [1]: HYP mode not available [ 3.372481] audit: initializing netlink subsys (disabled) [ 3.373917] audit: type=2000 audit(3.363:1): state=initialized audit_enabled=0 res=1 [ 3.374348] workingset: timestamp_bits=44 max_order=18 bucket_order=0 [ 3.388860] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 3.390649] NFS: Registering the id_resolver key type [ 3.390676] Key type id_resolver registered [ 3.390682] Key type id_legacy registered [ 3.390695] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 3.390911] 9p: Installing v9fs 9p2000 file system support [ 3.394784] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 3.399118] io scheduler noop registered [ 3.399498] io scheduler cfq registered (default) [ 3.399507] io scheduler mq-deadline registered [ 3.399514] io scheduler kyber registered [ 3.447446] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 3.450968] SuperH (H)SCI(F) driver initialized [ 3.452946] msm_serial 78af000.serial: msm_serial: detected port #1 [ 3.453050] msm_serial 78af000.serial: uartclk = 19200000 [ 3.453118] 78af000.serial: ttyMSM1 at MMIO 0x78af000 (irq = 9, base_baud = 1200000) is a MSM [ 3.453991] msm_serial 78b0000.serial: msm_serial: detected port #0 [ 3.454066] msm_serial 78b0000.serial: uartclk = 7372800 [ 3.454127] 78b0000.serial: ttyMSM0 at MMIO 0x78b0000 (irq = 10, base_baud = 460800) is a MSM [ 3.454146] msm_serial: console setup on port #0 [ 4.279147] console [ttyMSM0] enabled [ 4.284599] msm_serial: driver initialized [ 4.289157] qcom-iommu 1ef0000.iommu: iommu sec: pgtable size: 94208 [ 4.307493] loop: module loaded [ 4.315488] spi_qup 78b7000.spi: IN:block:16, fifo:64, OUT:block:16, fifo:64 [ 4.317409] spi_qup 78b9000.spi: IN:block:16, fifo:64, OUT:block:16, fifo:64 [ 4.323690] spmi spmi-0: PMIC arbiter version v2 (0x20010000) [ 4.339048] s1: supplied by regulator-dummy [ 4.339662] s2: supplied by regulator-dummy [ 4.342510] s3: supplied by regulator-dummy [ 4.346591] s4: supplied by regulator-dummy [ 4.350744] l1: supplied by regulator-dummy [ 4.354849] l2: supplied by regulator-dummy [ 4.359003] l3: supplied by regulator-dummy [ 4.363237] l4: supplied by regulator-dummy [ 4.367367] l5: supplied by regulator-dummy [ 4.371472] l6: supplied by regulator-dummy [ 4.375686] l7: supplied by regulator-dummy [ 4.379869] l8: supplied by regulator-dummy [ 4.384010] l9: supplied by regulator-dummy [ 4.388187] l10: supplied by regulator-dummy [ 4.392347] l11: supplied by regulator-dummy [ 4.396851] l12: supplied by regulator-dummy [ 4.401130] l13: supplied by regulator-dummy [ 4.405357] l14: supplied by regulator-dummy [ 4.409616] l15: supplied by regulator-dummy [ 4.413893] l16: supplied by regulator-dummy [ 4.418127] l17: supplied by regulator-dummy [ 4.422370] l18: supplied by regulator-dummy [ 4.428150] libphy: Fixed MDIO Bus: probed [ 4.432308] tun: Universal TUN/TAP device driver, 1.6 [ 4.437463] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 4.440334] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 4.445520] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k [ 4.451295] igb: Copyright (c) 2007-2014 Intel Corporation. [ 4.458197] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k [ 4.463718] igbvf: Copyright (c) 2009 - 2012 Intel Corporation. [ 4.472373] sky2: driver version 1.30 [ 4.478369] usbcore: registered new interface driver rtl8150 [ 4.481544] usbcore: registered new interface driver r8152 [ 4.487055] usbcore: registered new interface driver asix [ 4.492415] usbcore: registered new interface driver ax88179_178a [ 4.497825] usbcore: registered new interface driver cdc_ether [ 4.503892] usbcore: registered new interface driver net1080 [ 4.509620] usbcore: registered new interface driver cdc_subset [ 4.515433] usbcore: registered new interface driver zaurus [ 4.521094] usbcore: registered new interface driver cdc_ncm [ 4.526825] VFIO - User Level meta-driver version: 0.3 [ 4.538958] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 4.538999] ehci-pci: EHCI PCI platform driver [ 4.545196] ehci-platform: EHCI generic platform driver [ 4.549184] ehci-orion: EHCI orion driver [ 4.554275] ehci-exynos: EHCI EXYNOS driver [ 4.558352] ehci-msm: Qualcomm On-Chip EHCI Host Controller [ 4.562356] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 4.567720] ohci-pci: OHCI PCI platform driver [ 4.573993] ohci-platform: OHCI generic platform driver [ 4.578596] ohci-exynos: OHCI EXYNOS driver [ 4.584469] usbcore: registered new interface driver usb-storage [ 4.588034] usbcore: registered new interface driver usbserial [ 4.594037] usbcore: registered new interface driver usbserial_generic [ 4.599628] usbserial: USB Serial support registered for generic [ 4.623217] usb3503 usb2513: switched to HUB mode [ 4.623239] usb3503 usb2513: usb3503_probe: probed in hub mode [ 4.639308] msm_hsusb 78d9000.usb: 78d9000.usb supply vbus not found, using dummy regulator [ 4.643608] input: pm8941_pwrkey as /devices/platform/soc/200f000.spmi/spmi-0/0-00/200f000.spmi:pm8916@0:pwrkey@800/input/input0 [ 4.648759] i2c /dev entries driver [ 4.660586] i2c_qup 78b6000.i2c: using default clock-frequency 100000 [ 4.661478] i2c_qup 78b6000.i2c: [ 4.661478] tx channel not available [ 4.669429] i2c_qup 78b8000.i2c: using default clock-frequency 100000 [ 4.675086] i2c_qup 78b8000.i2c: [ 4.675086] tx channel not available [ 4.682585] i2c_qup 78ba000.i2c: using default clock-frequency 100000 [ 4.688498] i2c_qup 78ba000.i2c: [ 4.688498] tx channel not available [ 4.701808] qcom-tsens 4a8000.thermal-sensor: tsens calibration failed [ 4.705687] sdhci: Secure Digital Host Controller Interface driver [ 4.708431] sdhci: Copyright(c) Pierre Ossman [ 4.714918] Synopsys Designware Multimedia Card Interface Driver [ 4.720626] sdhci-pltfm: SDHCI platform and OF driver helper [ 4.728465] sdhci_msm 7864900.sdhci: Got CD GPIO [ 4.734140] ledtrig-cpu: registered to indicate activity on CPUs [ 4.738121] usbcore: registered new interface driver usbhid [ 4.741970] usbhid: USB HID core driver [ 4.751146] usbcore: registered new interface driver snd-usb-audio [ 4.754098] NET: Registered protocol family 10 [ 4.761557] Segment Routing with IPv6 [ 4.761623] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 4.765393] NET: Registered protocol family 17 [ 4.770526] 9pnet: Installing 9P2000 support [ 4.774979] Key type dns_resolver registered [ 4.780169] registered taskstats version 1 [ 4.805234] s1: supplied by regulator-dummy [ 4.805312] s1: Bringing 0uV into 375000-375000uV [ 4.808313] msm_hsusb 78d9000.usb: 78d9000.usb supply vbus not found, using dummy regulator [ 4.819560] sdhci_msm 7864900.sdhci: Got CD GPIO [ 4.822195] s2: supplied by regulator-dummy [ 4.828826] input: gpio_keys as /devices/platform/gpio_keys/input/input1 [ 4.829234] hctosys: unable to open rtc device (rtc0) [ 4.829665] ALSA device list: [ 4.829667] No soundcards found. [ 4.833204] sdhci_msm 7864900.sdhci: Got CD GPIO [ 4.851070] s3: supplied by regulator[ 4.859896] s4: supplied by regulator-dummy [ 4.859939] s4: Bringing 0uV into 1800000-1800000uV [ 4.863391] l1: supplied by s3 [ 4.867848] l1: Bringing 0uV into 375000-375000uV [ 4.871312] l2: supplied by s3 [ 4.875726] l2: Bringing 0uV into 1200000-1200000uV [ 4.878971] l3: supplied by s3 [ 4.883464] l3: Bringing 0uV into 375000-375000uV [ 4.886852] l4: supplied by s4 [ 4.891350] l4: Bringing 0uV into 1750000-1750000uV [ 4.894616] l5: supplied by s4 [ 4.899087] l5: Bringing 0uV into 1750000-1750000uV [ 4.902519] l6: supplied by s4 [ 4.906983] l6: Bringing 0uV into 1800000-1800000uV [ 4.910391] l7: supplied by s4 [ 4.914874] l7: Bringing 0uV into 1750000-1750000uV [ 4.918308] l8: supplied by regulator-dummy [ 4.922774] l8: Bringing 0uV into 1750000-1750000uV [ 4.927269] l9: supplied by regulator-dummy [ 4.931803] l9: Bringing 0uV into 1750000-1750000uV [ 4.936279] l10: supplied by regulator-dummy [ 4.940834] l10: Bringing 0uV into 1750000-1750000uV [ 4.945619] l11: supplied by regulator-dummy [ 4.950289] l11: Bringing 0uV into 1750000-1750000uV [ 4.954843] l12: supplied by regulator-dummy [ 4.959495] l12: Bringing 0uV into 1750000-1750000uV [ 4.964092] l13: supplied by regulator-dummy [ 4.968692] l13: Bringing 0uV into 1750000-1750000uV [ 4.973245] l14: supplied by regulator-dummy [ 4.977893] l14: Bringing 0uV into 1750000-1750000uV [ 4.982431] l15: supplied by regulator-dummy [ 4.987098] l15: Bringing 0uV into 1750000-1750000uV [ 4.992049] l16: supplied by regulator-dummy [ 4.996295] l16: Bringing 0uV into 1750000-1750000uV [ 5.000830] l17: supplied by regulator-dummy [ 5.005504] l17: Bringing 0uV into 3300000-3300000uV [ 5.010681] l18: supplied by regulator-dummy [ 5.014697] l18: Bringing 0uV into 1750000-1750000uV [ 5.019591] Waiting for root device /dev/mmcblk0p10... -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html