[Qemu-devel] Running linux on qemu omap

[Qemu-devel] Running linux on qemu omap

[Corentin Labbe]

Hello

I am working on adding a maximum set of qemu machine on kernelCI.

For OMAP, five machine exists and I fail to boot any of them.
The maximum I can get with omap1_defconfig is
qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
Uncompressing Linux... done, booting the kernel.
then nothing more.

Does someone have a working config+version to share ?

Thanks
Regards

Re: [Qemu-devel] Running linux on qemu omap

[Aaro Koskinen]

Hi,

On Mon, May 20, 2019 at 09:05:33PM +0200, Corentin Labbe wrote:
> Hello
> 
> I am working on adding a maximum set of qemu machine on kernelCI.

That's cool.

> For OMAP, five machine exists and I fail to boot any of them.

Which machines?

> The maximum I can get with omap1_defconfig is
> qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
> Uncompressing Linux... done, booting the kernel.
> then nothing more.

It's known that omap1_defconfig doesn't work well for QEMU or
"multi-board" usage. Perhaps the kernel size is now just too big?
I'm using a custom config for every OMAP1 board anyway...

> Does someone have a working config+version to share ?

I have used the below config for OMAP1 SX1 board (the only one I got
working with QEMU). Unfortunately the functionality is quite limited,
but it still allows to run e.g. GCC bootstrap & testsuite, that is rare
nowadays for armv4t.

I'm using the following command line with qemu-system-arm 3.1.0:

        -M sx1 \
        -kernel "sx1-zImage" \
        -nographic \
        -drive file="sx1-mmc",if=sd,format=raw \
        -no-reboot

This should work with v5.1 kernel.

I'm also interested to run other OMAP kernels under QEMU, e.g. cheetah
(the real device, Palm TE works OK with the current mainline), and it
would be interesting to know why QEMU/kernel has regressed...

A.

...

#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 5.1.0 Kernel Configuration
#

#
# Compiler: arm-linux-gnueabi-gcc (GCC) 8.3.0
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=80300
CONFIG_CLANG_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
CONFIG_CC_DISABLE_WARN_MAYBE_UNINITIALIZED=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-sx1"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_LZMA is not set
CONFIG_KERNEL_XZ=y
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
# CONFIG_SYSVIPC is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_HANDLE_DOMAIN_IRQ=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_PSI is not set

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TINY_SRCU=y
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_GENERIC_SCHED_CLOCK=y
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_INITRAMFS_FORCE is not set
# CONFIG_RD_GZIP is not set
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
CONFIG_RD_XZ=y
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_EXPERT=y
# CONFIG_MULTIUSER is not set
# CONFIG_SGETMASK_SYSCALL is not set
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_SYSCTL_SYSCALL is not set
# CONFIG_FHANDLE is not set
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_PRINTK_NMI=y
CONFIG_BUG=y
# CONFIG_BASE_FULL is not set
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
# CONFIG_TIMERFD is not set
# CONFIG_EVENTFD is not set
# CONFIG_SHMEM is not set
# CONFIG_AIO is not set
CONFIG_IO_URING=y
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_MEMBARRIER is not set
# CONFIG_KALLSYMS is not set
# CONFIG_BPF_SYSCALL is not set
# CONFIG_USERFAULTFD is not set
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
# CONFIG_RSEQ is not set
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y
# CONFIG_PC104 is not set

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_VM_EVENT_COUNTERS is not set
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
# CONFIG_SLUB is not set
CONFIG_SLOB=y
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_PROFILING is not set
CONFIG_ARM=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_HAVE_PROC_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
# CONFIG_ARM_PATCH_PHYS_VIRT is not set
CONFIG_NEED_MACH_MEMORY_H=y
CONFIG_PHYS_OFFSET=0x10000000
CONFIG_GENERIC_BUG=y
CONFIG_PGTABLE_LEVELS=2

#
# System Type
#
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
# CONFIG_ARCH_MULTIPLATFORM is not set
# CONFIG_ARCH_EBSA110 is not set
# CONFIG_ARCH_EP93XX is not set
# CONFIG_ARCH_FOOTBRIDGE is not set
# CONFIG_ARCH_NETX is not set
# CONFIG_ARCH_IOP13XX is not set
# CONFIG_ARCH_IOP32X is not set
# CONFIG_ARCH_IOP33X is not set
# CONFIG_ARCH_IXP4XX is not set
# CONFIG_ARCH_DOVE is not set
# CONFIG_ARCH_KS8695 is not set
# CONFIG_ARCH_W90X900 is not set
# CONFIG_ARCH_LPC32XX is not set
# CONFIG_ARCH_PXA is not set
# CONFIG_ARCH_RPC is not set
# CONFIG_ARCH_SA1100 is not set
# CONFIG_ARCH_S3C24XX is not set
# CONFIG_ARCH_DAVINCI is not set
CONFIG_ARCH_OMAP1=y
CONFIG_ARCH_OMAP=y

#
# TI OMAP Common Features
#

#
# OMAP Feature Selections
#
CONFIG_OMAP_RESET_CLOCKS=y
CONFIG_OMAP_MPU_TIMER=y
CONFIG_OMAP_SERIAL_WAKE=y

#
# TI OMAP1 specific features
#

#
# OMAP Core Type
#
# CONFIG_ARCH_OMAP730 is not set
# CONFIG_ARCH_OMAP850 is not set
CONFIG_ARCH_OMAP15XX=y
# CONFIG_ARCH_OMAP16XX is not set
CONFIG_OMAP_MUX=y
CONFIG_OMAP_MUX_DEBUG=y
# CONFIG_OMAP_MUX_WARNINGS is not set

#
# OMAP Board Type
#
# CONFIG_MACH_OMAP_INNOVATOR is not set
# CONFIG_MACH_OMAP_PALMTE is not set
# CONFIG_MACH_OMAP_PALMZ71 is not set
# CONFIG_MACH_OMAP_PALMTT is not set
CONFIG_MACH_SX1=y
# CONFIG_MACH_AMS_DELTA is not set
# CONFIG_MACH_OMAP_GENERIC is not set

#
# Processor Type
#
CONFIG_CPU_ARM925T=y
CONFIG_CPU_THUMB_CAPABLE=y
CONFIG_CPU_32v4T=y
CONFIG_CPU_ABRT_EV4T=y
CONFIG_CPU_PABRT_LEGACY=y
CONFIG_CPU_CACHE_V4WT=y
CONFIG_CPU_CACHE_VIVT=y
CONFIG_CPU_COPY_V4WB=y
CONFIG_CPU_TLB_V4WBI=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y
CONFIG_CPU_USE_DOMAINS=y

#
# Processor Features
#
# CONFIG_ARM_THUMB is not set
# CONFIG_CPU_ICACHE_DISABLE is not set
# CONFIG_CPU_DCACHE_DISABLE is not set
# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
CONFIG_NEED_KUSER_HELPERS=y
CONFIG_KUSER_HELPERS=y
CONFIG_ARM_L1_CACHE_SHIFT=5

#
# Bus support
#

#
# Kernel Features
#
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_ARCH_NR_GPIO=0
CONFIG_HZ_FIXED=0
CONFIG_HZ_100=y
# CONFIG_HZ_200 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_500 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_AEABI=y
# CONFIG_OABI_COMPAT is not set
CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
CONFIG_HAVE_ARCH_PFN_VALID=y
# CONFIG_HIGHMEM is not set
# CONFIG_CPU_SW_DOMAIN_PAN is not set
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_FORCE_MAX_ZONEORDER=11
CONFIG_ALIGNMENT_TRAP=y
# CONFIG_UACCESS_WITH_MEMCPY is not set
# CONFIG_SECCOMP is not set
# CONFIG_PARAVIRT is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set

#
# Boot options
#
# CONFIG_USE_OF is not set
CONFIG_ATAGS=y
# CONFIG_DEPRECATED_PARAM_STRUCT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="mem=32M console=ttyS0,115200n8"
# CONFIG_CMDLINE_FROM_BOOTLOADER is not set
# CONFIG_CMDLINE_EXTEND is not set
CONFIG_CMDLINE_FORCE=y
# CONFIG_XIP_KERNEL is not set
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
# CONFIG_AUTO_ZRELADDR is not set

#
# CPU Power Management
#

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set

#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set

#
# Floating point emulation
#

#
# At least one emulation must be selected
#

#
# Power management options
#
# CONFIG_PM is not set
# CONFIG_APM_EMULATION is not set

#
# Firmware Drivers
#
# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_FW_CFG_SYSFS is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# Tegra firmware driver
#
# CONFIG_VIRTUALIZATION is not set

#
# General architecture-dependent options
#
CONFIG_HAVE_OPROFILE=y
# CONFIG_JUMP_LABEL is not set
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_NMI=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
# CONFIG_STACKPROTECTOR is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=8
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_CPU_NO_EFFICIENT_FFS=y
CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
# CONFIG_STRICT_KERNEL_RWX is not set
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_ARCH_HAS_PHYS_TO_DMA=y
CONFIG_REFCOUNT_FULL=y

#
# GCOV-based kernel profiling
#
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
CONFIG_PLUGIN_HOSTCC="g++"
CONFIG_HAVE_GCC_PLUGINS=y
# CONFIG_GCC_PLUGINS is not set
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=1
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_SED_OPAL is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
# CONFIG_EFI_PARTITION is not set
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set

#
# IO Schedulers
#
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
CONFIG_IOSCHED_BFQ=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_ELF_FDPIC is not set
CONFIG_ELFCORE=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_BINFMT_FLAT is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_COREDUMP is not set

#
# Memory Management options
#
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_BENCHMARK is not set
# CONFIG_NET is not set
CONFIG_HAVE_EBPF_JIT=y

#
# Device Drivers
#
# CONFIG_PCCARD is not set

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
CONFIG_STANDALONE=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set

#
# Firmware loader
#
# CONFIG_FW_LOADER is not set
# CONFIG_ALLOW_DEV_COREDUMP is not set
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y

#
# Bus devices
#
# CONFIG_BRCMSTB_GISB_ARB is not set
# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set

#
# NVME Support
#
# CONFIG_NVME_FC is not set

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_ALTERA_STAPL is not set

#
# Intel MIC & related support
#

#
# Intel MIC Bus Driver
#

#
# SCIF Bus Driver
#

#
# VOP Bus Driver
#
# CONFIG_VOP_BUS is not set

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
# CONFIG_ECHO is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_NVM is not set

#
# Input device support
#
# CONFIG_INPUT is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
# CONFIG_VT is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_TRACE_SINK is not set
CONFIG_LDISC_AUTOLOAD=y
# CONFIG_DEVMEM is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_NR_UARTS=3
CONFIG_SERIAL_8250_RUNTIME_UARTS=3
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_FSL=y
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_EM is not set
# CONFIG_SERIAL_8250_RT288X is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_BCM63XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_HVC_DCC is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set

#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y

#
# I2C Hardware Bus support
#

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_OMAP=y
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I3C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set

#
# PTP clock support
#

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_PINCTRL is not set
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_MPC8XXX is not set
CONFIG_GPIO_OMAP=y
# CONFIG_GPIO_AMD_FCH is not set

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set

#
# MFD GPIO expanders
#
# CONFIG_HTC_EGPIO is not set
# CONFIG_W1 is not set
# CONFIG_POWER_AVS is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_ASIC3 is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_PM8XXX is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_MFD_TC6387XB is not set
# CONFIG_MFD_TC6393XB is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_DRM is not set
# CONFIG_DRM_DP_CEC is not set

#
# ARM devices
#

#
# ACP (Audio CoProcessor) Configuration
#

#
# AMD Library routines
#

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
# CONFIG_SOUND is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
CONFIG_MMC=y
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=8
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_SDHCI is not set
CONFIG_MMC_OMAP=y
# CONFIG_MMC_DW is not set
# CONFIG_MMC_USDHI6ROL0 is not set
# CONFIG_MMC_CQHCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
# CONFIG_RTC_NVMEM is not set

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_PROC is not set
# CONFIG_RTC_INTF_DEV is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_OMAP=y
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
# CONFIG_ALTERA_MSGDMA is not set
# CONFIG_FSL_QDMA is not set
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_NBPFAXI_DMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
# CONFIG_DW_DMAC is not set
# CONFIG_TI_CPPI41 is not set
# CONFIG_TI_EDMA is not set
CONFIG_DMA_OMAP=y

#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_VIRTIO_MENU is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_CLKDEV_LOOKUP=y
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_CLKSRC_MMIO=y
# CONFIG_ARM_TIMER_SP804 is not set
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set

#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#

#
# Broadcom SoC drivers
#
# CONFIG_SOC_BRCMSTB is not set

#
# NXP/Freescale QorIQ SoC drivers
#

#
# i.MX SoC drivers
#

#
# Qualcomm SoC drivers
#
# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# CONFIG_XILINX_VCU is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_DAX is not set
# CONFIG_NVMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# CONFIG_FPGA is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set

#
# File systems
#
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NLS is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITYFS is not set
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="yama,loadpin,safesetid,integrity"
# CONFIG_CRYPTO is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_XZ=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS=y
CONFIG_DMA_REMAP=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_GENERIC_ATOMIC64=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_IRQ_POLL is not set
CONFIG_ARCH_NO_SG_CHAIN=y
CONFIG_SBITMAP=y
# CONFIG_STRING_SELFTEST is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
# CONFIG_PRINTK_CALLER is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_KASAN_STACK=1
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_STACKTRACE is not set
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_RCU_PERF_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
# CONFIG_MEMTEST is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_UBSAN is not set
CONFIG_UBSAN_ALIGNMENT=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
# CONFIG_ARM_PTDUMP_DEBUGFS is not set
# CONFIG_DEBUG_WX is not set
# CONFIG_UNWINDER_FRAME_POINTER is not set
CONFIG_UNWINDER_ARM=y
CONFIG_ARM_UNWIND=y
# CONFIG_DEBUG_USER is not set
# CONFIG_DEBUG_LL is not set
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
CONFIG_UNCOMPRESS_INCLUDE="mach/uncompress.h"
# CONFIG_CORESIGHT is not set

Re: [Qemu-devel] Running linux on qemu omap

[Corentin Labbe]

On Wed, May 22, 2019 at 02:23:23AM +0300, Aaro Koskinen wrote:
> Hi,
> 
> On Mon, May 20, 2019 at 09:05:33PM +0200, Corentin Labbe wrote:
> > Hello
> > 
> > I am working on adding a maximum set of qemu machine on kernelCI.
> 
> That's cool.
> 
> > For OMAP, five machine exists and I fail to boot any of them.
> 
> Which machines?

Hello

qemu-system-arm -M help |grep OMAP
cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
n800                 Nokia N800 tablet aka. RX-34 (OMAP2420)
n810                 Nokia N810 tablet aka. RX-44 (OMAP2420)
sx1                  Siemens SX1 (OMAP310) V2
sx1-v1               Siemens SX1 (OMAP310) V1

> 
> > The maximum I can get with omap1_defconfig is
> > qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
> > Uncompressing Linux... done, booting the kernel.
> > then nothing more.
> 
> It's known that omap1_defconfig doesn't work well for QEMU or
> "multi-board" usage. Perhaps the kernel size is now just too big?
> I'm using a custom config for every OMAP1 board anyway...
> 
> > Does someone have a working config+version to share ?
> 
> I have used the below config for OMAP1 SX1 board (the only one I got
> working with QEMU). Unfortunately the functionality is quite limited,
> but it still allows to run e.g. GCC bootstrap & testsuite, that is rare
> nowadays for armv4t.
> 
> I'm using the following command line with qemu-system-arm 3.1.0:
> 
>         -M sx1 \
>         -kernel "sx1-zImage" \
>         -nographic \
>         -drive file="sx1-mmc",if=sd,format=raw \
>         -no-reboot
> 
> This should work with v5.1 kernel.
> 
> I'm also interested to run other OMAP kernels under QEMU, e.g. cheetah
> (the real device, Palm TE works OK with the current mainline), and it
> would be interesting to know why QEMU/kernel has regressed...
> 

thanks, with your config I was able to boot both sx1 and cheetah (by adding CONFIG_MACH_OMAP_PALMTE=y)
Now I need to find what is missing (or in excess) in omap1_defconfig to made it boot

Another obstacle is the disabling of the initrd, perhaps by using sdcard as an "initrd" will do the trick, but the sdcard is ignored for the moment.

(I have added linux-kernel@vger.kernel.org for larger audience in case of someone have n800/n810 working)

Regards

qemu-system-arm -kernel zImage -nographic -machine sx1 -append 'console=ttyS0 root=/dev/sda' -m 256 -cpu ti925t -drive format=qcow2,file=disk.img,if=sd
omap_clkm_write: clocking scheme set to synchronous scalable
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.2.0-rc1-next-20190521-sx1+ (compile@Red) (gcc version 8.2.0 (Gentoo 8.2.0-r6 p1.7)) #7 Wed May 22 11:04:32 CEST 2019
[    0.000000] CPU: ARM925T [54029252] revision 2 (ARMv4T), cr=0000317f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine: OMAP310 based Siemens SX1
[    0.000000] Ignoring tag cmdline (using the default kernel command line)
[    0.000000] Memory policy: Data cache writethrough
[    0.000000] OMAP0310 revision 2 handled as 15xx id: a8858bfac9581f0e
[    0.000000] Clocks: ARM_SYSST: 0x003a DPLL_CTL: 0x2002 ARM_CKCTL: 0x3000
[    0.000000] Clocking rate (xtal/DPLL1/MPU): 12.0/12.0/12.0 MHz
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 8128
[    0.000000] Kernel command line: mem=32M console=ttyS0,115200n8
[    0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Memory: 30104K/32768K available (1680K kernel code, 91K rwdata, 292K rodata, 104K init, 62K bss, 2664K reserved, 0K cma-reserved)
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] Total of 64 interrupts in 2 interrupt banks
[    0.000435] sched_clock: 32 bits at 6MHz, resolution 166ns, wraps every 357913940908ns
[    0.000873] clocksource: mpu_timer2: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 318543407797 ns
[    0.003038] Calibrating delay loop... 469.40 BogoMIPS (lpj=2347008)
[    0.191676] pid_max: default: 4096 minimum: 301
[    0.192828] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.192886] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.206350] *** VALIDATE proc ***
[    0.206803] CPU: Testing write buffer coherency: ok
[    0.222891] Setting up static identity map for 0x10008400 - 0x1000842c
[    0.232941] devtmpfs: initialized
[    0.240739] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.240916] futex hash table entries: 16 (order: -5, 192 bytes)
[    0.245376] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.259782] omap_gpio omap_gpio.0: Runtime PM disabled, clock forced on.
[    0.265624] irq: Cannot allocate irq_descs @ IRQ80, assuming pre-allocated
[    0.273854] irq: Cannot allocate irq_descs @ IRQ96, assuming pre-allocated
[    0.276477] MUX: Setting register UART1_TX
[    0.276528]       FUNC_MUX_CTRL_9 (0xfffe1028) = 0x00000000 -> 0x00200000
[    0.276572]       PULL_DWN_CTRL_2 (0xfffe1048) = 0x00000000 -> 0x00000008
[    0.276616] MUX: Setting register UART1_RTS
[    0.276639]       FUNC_MUX_CTRL_9 (0xfffe1028) = 0x00200000 -> 0x00201000
[    0.276663]       PULL_DWN_CTRL_2 (0xfffe1048) = 0x00000008 -> 0x00000009
[    0.276689] MUX: Setting register UART2_TX
[    0.276713]       FUNC_MUX_CTRL_C (0xfffe1034) = 0x00000000 -> 0x08000000
[    0.276736]       PULL_DWN_CTRL_3 (0xfffe104c) = 0x00000000 -> 0x00000008
[    0.276765] MUX: Setting register UART2_RTS
[    0.276790]       FUNC_MUX_CTRL_C (0xfffe1034) = 0x08000000 -> 0x09000000
[    0.276813]       PULL_DWN_CTRL_3 (0xfffe104c) = 0x00000008 -> 0x0000000c
[    0.276839] MUX: Setting register UART3_TX
[    0.276863]       FUNC_MUX_CTRL_6 (0xfffe101c) = 0x00000000 -> 0x00000001
[    0.276886]       PULL_DWN_CTRL_0 (0xfffe1040) = 0x00000000 -> 0x40000000
[    0.278190] MUX: Setting register MMC_CMD
[    0.278220]       FUNC_MUX_CTRL_A (0xfffe102c) = 0x00000000 -> 0x00000000
[    0.278246]       PULL_DWN_CTRL_2 (0xfffe1048) = 0x00000009 -> 0x00000009
[    0.278275] MUX: Setting register MMC_CLK
[    0.278303]       FUNC_MUX_CTRL_A (0xfffe102c) = 0x00000000 -> 0x00000000
[    0.278333] MUX: Setting register MMC_DAT0
[    0.278359]       FUNC_MUX_CTRL_B (0xfffe1030) = 0x00000000 -> 0x00000000
[    0.278391]       PULL_DWN_CTRL_2 (0xfffe1048) = 0x00000009 -> 0x00000009
[    0.282369] Clocking rate (xtal/DPLL1/MPU): 12.0/120.0/120.0 MHz
[    0.284362] DMA support for OMAP15xx initialized
[    0.305623] omap-dma-engine omap-dma-engine: failed to get L1 IRQ: -6
[    0.345197] omap-dma-engine omap-dma-engine: OMAP DMA engine driver
[    0.350775] SCSI subsystem initialized
[    0.352338] omap_i2c omap_i2c.1: Runtime PM disabled, clock forced on.
[    0.352387] omap_i2c omap_i2c.1: Runtime PM disabled, clock forced on.
[    0.354801] omap_i2c omap_i2c.1: bus 1 rev1.1 at 100 kHz
[    0.356226] clocksource: Switched to clocksource mpu_timer2
[    0.373816] workingset: timestamp_bits=30 max_order=13 bucket_order=0
[    0.376643] io scheduler bfq registered
[    0.380205] Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
[    0.391718] printk: console [ttyS0] disabled
[    0.599303] serial8250.0: ttyS0 at MMIO 0xfffb0000 (irq = 62, base_baud = 750000) is a 16550A
[    0.632021] printk: console [ttyS0] enabled
[    0.837594] serial8250.0: ttyS1 at MMIO 0xfffb0800 (irq = 63, base_baud = 750000) is a 16550A
[    1.044254] serial8250.0: ttyS2 at MMIO 0xfffb9800 (irq = 31, base_baud = 750000) is a 16550A
[    1.047921] i2c /dev entries driver
[    1.050288] mmci-omap mmci-omap.0: Runtime PM disabled, clock forced on.
[    1.050782] mmci-omap mmci-omap.0: Runtime PM disabled, clock forced on.
[    1.090290] clock: disabling unused clocks to save power
[    1.090838] Skipping reset check for DSP domain clock "dsptim_ck"
[    1.091249] Skipping reset check for DSP domain clock "dspxor_ck"
[    1.091646] Skipping reset check for DSP domain clock "dspper_ck"
[    1.092421] random: get_random_bytes called from 0xc0018860 with crng_init=0
[    1.095384] mmci-omap mmci-omap.0: command timeout (CMD52)
[    1.096356] mmci-omap mmci-omap.0: command timeout (CMD52)
[    1.101963] hctosys: unable to open rtc device (rtc0)
[    1.113769] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[    1.114266] Please append a correct "root=" boot option; here are the available partitions:
[    1.115058] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    1.116009] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---

Re: [Qemu-devel] Running linux on qemu omap

[Aaro Koskinen]

Hi,

On Wed, May 22, 2019 at 11:33:41AM +0200, Corentin Labbe wrote:
> qemu-system-arm -M help |grep OMAP
> cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
> n800                 Nokia N800 tablet aka. RX-34 (OMAP2420)
> n810                 Nokia N810 tablet aka. RX-44 (OMAP2420)
> sx1                  Siemens SX1 (OMAP310) V2
> sx1-v1               Siemens SX1 (OMAP310) V1
> 
> > > The maximum I can get with omap1_defconfig is
> > > qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
> > > Uncompressing Linux... done, booting the kernel.
> > > then nothing more.

With N800/N810 omap2plus_defconfig should be used instead. However,
I don't think that works either (but haven't tried recently). Also with
N800/N810 you need to append the DTB file to the kernel image.

> thanks, with your config I was able to boot both sx1 and cheetah
> (by adding CONFIG_MACH_OMAP_PALMTE=y)

Great!

> Now I need to find what is missing (or in excess) in omap1_defconfig
> to made it boot

A simple (but slow) way would be to start adding config options from
omap1_defconfig one by one to the working config, and see which one
makes it fail.

> Another obstacle is the disabling of the initrd, perhaps by using
> sdcard as an "initrd" will do the trick, but the sdcard is ignored for
> the moment.

Using CONFIG_INITRAMFS_SOURCE it's possible to include a file system
inside the kernel image.

Based on your boot log, I think the kernel probably panics before the
MMC/sdcard is found (asynchronous probe). You could try adding rootwait
to the kernel command line. (My config has CONFIG_CMDLINE_FORCE=y, so
you need to add it to CONFIG_CMDLINE, as QEMU -append gets ignored). Also
the sdcard will appear as /dev/mmcblk0 instead of /dev/sda.

The sdcard is working fine for me, and it can be used to run a full-blown
distro rootfs; I don't know what is the capacity limit in the MMC driver
but at least 16 GB image is working fine:

[    2.011012] mmc0: new SDHC card at address 4567
[    2.016419] mmcblk0: mmc0:4567 QEMU! 16.0 GiB

A.

Re: [Qemu-devel] Running linux on qemu omap

[Thomas Huth]

On 22/05/2019 20.19, Aaro Koskinen wrote:
> Hi,
> 
> On Wed, May 22, 2019 at 11:33:41AM +0200, Corentin Labbe wrote:
>> qemu-system-arm -M help |grep OMAP
>> cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
>> n800                 Nokia N800 tablet aka. RX-34 (OMAP2420)
>> n810                 Nokia N810 tablet aka. RX-44 (OMAP2420)
>> sx1                  Siemens SX1 (OMAP310) V2
>> sx1-v1               Siemens SX1 (OMAP310) V1
>>
>>>> The maximum I can get with omap1_defconfig is
>>>> qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
>>>> Uncompressing Linux... done, booting the kernel.
>>>> then nothing more.
> 
> With N800/N810 omap2plus_defconfig should be used instead. However,
> I don't think that works either (but haven't tried recently). Also with
> N800/N810 you need to append the DTB file to the kernel image.

FWIW, Philippe recently posted a mail how to run older kernels on n810:

https://www.mail-archive.com/qemu-devel@nongnu.org/msg610653.html

 HTH,
  Thomas

Re: [Qemu-devel] Running linux on qemu omap

[Philippe Mathieu-Daudé]

[-- Attachment #1: Type: text/plain, Size: 1597 bytes --]

On 5/23/19 1:27 PM, Thomas Huth wrote:
> On 22/05/2019 20.19, Aaro Koskinen wrote:
>> Hi,
>>
>> On Wed, May 22, 2019 at 11:33:41AM +0200, Corentin Labbe wrote:
>>> qemu-system-arm -M help |grep OMAP
>>> cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
>>> n800                 Nokia N800 tablet aka. RX-34 (OMAP2420)
>>> n810                 Nokia N810 tablet aka. RX-44 (OMAP2420)
>>> sx1                  Siemens SX1 (OMAP310) V2
>>> sx1-v1               Siemens SX1 (OMAP310) V1
>>>
>>>>> The maximum I can get with omap1_defconfig is
>>>>> qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
>>>>> Uncompressing Linux... done, booting the kernel.
>>>>> then nothing more.
>>
>> With N800/N810 omap2plus_defconfig should be used instead. However,
>> I don't think that works either (but haven't tried recently). Also with
>> N800/N810 you need to append the DTB file to the kernel image.
> 
> FWIW, Philippe recently posted a mail how to run older kernels on n810:
> 
> https://www.mail-archive.com/qemu-devel@nongnu.org/msg610653.html

What I use as reference for testing ARM boards [*] is the work of
Guenter Roeck:
https://github.com/groeck/linux-build-test/blob/master/rootfs/arm/run-qemu-arm.sh

However I can see than none of the board listed by Corentin are tested
... That reminder me I never succeed at using the Cheetah PDA. So the
OMAP310 is probably bitroting in QEMU...

[*] and slowly add to upstream patches he sent that fell through the
cracks of qemu-devel.

Regards,

Phil.


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Re: [Qemu-devel] Running linux on qemu omap

[Aaro Koskinen]

Hi,

On Thu, May 23, 2019 at 02:00:41PM +0200, Philippe Mathieu-Daudé wrote:
> On 5/23/19 1:27 PM, Thomas Huth wrote:
> > On 22/05/2019 20.19, Aaro Koskinen wrote:
> >> On Wed, May 22, 2019 at 11:33:41AM +0200, Corentin Labbe wrote:
> >>> qemu-system-arm -M help |grep OMAP
> >>> cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
> >>> n800                 Nokia N800 tablet aka. RX-34 (OMAP2420)
> >>> n810                 Nokia N810 tablet aka. RX-44 (OMAP2420)
> >>> sx1                  Siemens SX1 (OMAP310) V2
> >>> sx1-v1               Siemens SX1 (OMAP310) V1
> >>>
> >>>>> The maximum I can get with omap1_defconfig is
> >>>>> qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
> >>>>> Uncompressing Linux... done, booting the kernel.
> >>>>> then nothing more.
> >>
> >> With N800/N810 omap2plus_defconfig should be used instead. However,
> >> I don't think that works either (but haven't tried recently). Also with
> >> N800/N810 you need to append the DTB file to the kernel image.
> > 
> > FWIW, Philippe recently posted a mail how to run older kernels on n810:
> > 
> > https://www.mail-archive.com/qemu-devel@nongnu.org/msg610653.html

So it seems the issue with N8x0 is that serial console does not work.
And we are missing the display support in the mainline kernel.

> However I can see than none of the board listed by Corentin are tested
> ... That reminder me I never succeed at using the Cheetah PDA. So the
> OMAP310 is probably bitroting in QEMU...

Cheetah works with serial console. I tried with console on display,
and it seems to boot up, and the frame buffer window gets correctly
sized but for some reason it just stays blank.

A.

Re: [Qemu-devel] Running linux on qemu omap

[Peter Maydell]

On Thu, 23 May 2019 at 19:36, Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> Cheetah works with serial console. I tried with console on display,
> and it seems to boot up, and the frame buffer window gets correctly
> sized but for some reason it just stays blank.

As a general question, when you're doing these tests are you
using a kernel image that is known to work on real hardware?
One problem we have with some of these older QEMU platforms
is that it turns out that QEMU is only tested with the kernel,
and the kernel support for the platform is only tested with
QEMU, and so you get equal and opposite bugs in QEMU and the
kernel that cancel each other out and don't get noticed...

(On the QEMU side these platforms are all basically orphaned:
if somebody submits patches to fix bugs we'll review them,
but they're unlikely to get a great deal of attention otherwise.
They're also quite near the top of the "maybe we'll just
deprecate and then delete these" list, since we have not
historically had any working guest images to test against.
If there's a real userbase that wants them to continue to
exist that's a different matter, of course.)

thanks
- PMM

Re: [Qemu-devel] Running linux on qemu omap

[Aaro Koskinen]

Hi,

On Fri, May 24, 2019 at 10:08:09AM +0100, Peter Maydell wrote:
> On Thu, 23 May 2019 at 19:36, Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> > Cheetah works with serial console. I tried with console on display,
> > and it seems to boot up, and the frame buffer window gets correctly
> > sized but for some reason it just stays blank.
> 
> As a general question, when you're doing these tests are you
> using a kernel image that is known to work on real hardware?

With Cheetah (I wonder where that name comes from?), yes, same for
N8x0. SX1 I don't have, but the SoC is the same as on Palm TE.

> One problem we have with some of these older QEMU platforms
> is that it turns out that QEMU is only tested with the kernel,
> and the kernel support for the platform is only tested with
> QEMU, and so you get equal and opposite bugs in QEMU and the
> kernel that cancel each other out and don't get noticed...
>
> (On the QEMU side these platforms are all basically orphaned:
> if somebody submits patches to fix bugs we'll review them,
> but they're unlikely to get a great deal of attention otherwise.
> They're also quite near the top of the "maybe we'll just
> deprecate and then delete these" list, since we have not
> historically had any working guest images to test against.
> If there's a real userbase that wants them to continue to
> exist that's a different matter, of course.)

Please don't delete OMAP boards quite yet :) In the mainline kernel
they are not orphaned, they frequently get tested using actual hardware,
and QEMU would help in additional testing. I'll try to get N8x0 boot to
work with the minimal kernel I use on real HW.

Regarding N8x0 and bluetooth (mentioned in one of the linked threads), I
guess the removal of the bluetooth subsystem can be done without removing
the whole machine: just don't pass the OMAP BT TAG to the kernel anymore,
and it should ignore the BT hardware (just an idea based on quick read
of vendor kernel sources, the mainline kernel does not support BT on
this board).

A.

Re: [Qemu-devel] Running linux on qemu omap

[Aaro Koskinen]

Hi,

On Fri, May 24, 2019 at 06:00:18PM +0300, Aaro Koskinen wrote:
> Please don't delete OMAP boards quite yet :) In the mainline kernel
> they are not orphaned, they frequently get tested using actual hardware,
> and QEMU would help in additional testing. I'll try to get N8x0 boot to
> work with the minimal kernel I use on real HW.

So it was only a matter of attaching the serial console at the QEMU side
(a hackish patch at the end of the mail).

$ qemu-system-arm --version
QEMU emulator version 4.0.0 (v4.0.0-dirty)
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
$ qemu-system-arm -M n810 -kernel zImage -nographic
Uncompressing Linux... done, booting the kernel.
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.1.0-n8x0_tiny-los_b1ac4+-00007-g7435e73d8ac4 (aaro@amd-fx-6350) (gcc version 8.3.0 (GCC)) #1 Fri May 24 20:43:02 EEST 2019
[    0.000000] CPU: ARMv6-compatible processor [4107b362] revision 2 (ARMv6TEJ), cr=00c5387d
[    0.000000] CPU: VIPT aliasing data cache, unknown instruction cache
[    0.000000] OF: fdt: Machine model: Nokia N810
[    0.000000] printk: bootconsole [earlycon0] enabled
[    0.000000] Memory policy: Data cache writeback
[    0.000000] OMAP2420
[...]

However there are plenty of WARNs that are not present on real hardware.
Anyway, it's a start.

A.

...

diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
index 906b7ca22d43..52ff83ec5147 100644
--- a/hw/arm/nseries.c
+++ b/hw/arm/nseries.c
@@ -792,6 +792,7 @@ static void n8x0_uart_setup(struct n800_s *s)
     qdev_connect_gpio_out(s->mpu->gpio, N8X0_BT_WKUP_GPIO,
                     csrhci_pins_get(radio)[csrhci_pin_wakeup]);
 
+    omap_uart_attach(s->mpu->uart[2], serial_hd(0));
     omap_uart_attach(s->mpu->uart[BT_UART], radio);
 }
 

Re: [Qemu-devel] Running linux on qemu omap

[Thomas Huth]

On 24/05/2019 20.59, Aaro Koskinen wrote:
> Hi,
> 
> On Fri, May 24, 2019 at 06:00:18PM +0300, Aaro Koskinen wrote:
>> Please don't delete OMAP boards quite yet :) In the mainline kernel
>> they are not orphaned, they frequently get tested using actual hardware,
>> and QEMU would help in additional testing. I'll try to get N8x0 boot to
>> work with the minimal kernel I use on real HW.
> 
> So it was only a matter of attaching the serial console at the QEMU side
> (a hackish patch at the end of the mail).

Does not look too much hackish to me. Could you please send it as a
proper patch to the list (with patch description and Signed-off-by line)?

 Thomas


> 
> diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
> index 906b7ca22d43..52ff83ec5147 100644
> --- a/hw/arm/nseries.c
> +++ b/hw/arm/nseries.c
> @@ -792,6 +792,7 @@ static void n8x0_uart_setup(struct n800_s *s)
>      qdev_connect_gpio_out(s->mpu->gpio, N8X0_BT_WKUP_GPIO,
>                      csrhci_pins_get(radio)[csrhci_pin_wakeup]);
>  
> +    omap_uart_attach(s->mpu->uart[2], serial_hd(0));
>      omap_uart_attach(s->mpu->uart[BT_UART], radio);
>  }
>  
> 

Re: [Qemu-devel] Running linux on qemu omap

[Tony Lindgren]

Hi,

* Philippe Mathieu-Daudé <philmd@redhat.com> [190523 12:01]:
> What I use as reference for testing ARM boards [*] is the work of
> Guenter Roeck:
> https://github.com/groeck/linux-build-test/blob/master/rootfs/arm/run-qemu-arm.sh

I think Guenter also has v2.3.50-local-linaro branch in his
github repo that has support for few extra boards like Beagleboard.
Not sure what's the current branch to use though.

Regards,

Tony

Re: [Qemu-devel] Running linux on qemu omap

[Guenter Roeck]

On 5/26/19 11:32 PM, Tony Lindgren wrote:
> Hi,
> 
> * Philippe Mathieu-Daudé <philmd@redhat.com> [190523 12:01]:
>> What I use as reference for testing ARM boards [*] is the work of
>> Guenter Roeck:
>> https://github.com/groeck/linux-build-test/blob/master/rootfs/arm/run-qemu-arm.sh
> 
> I think Guenter also has v2.3.50-local-linaro branch in his
> github repo that has support for few extra boards like Beagleboard.
> Not sure what's the current branch to use though.
> 
I'd be happy to use a different (supported) branch, but the Linaro branch
was the only one I could find that supports those boards. Unfortunately,
qemu changed so much since 2.3 that it is all but impossible to merge
the code into mainline qemu without spending a lot of effort on it.

Guenter

Re: [Qemu-devel] Running linux on qemu omap

[Philippe Mathieu-Daudé]

On 5/27/19 5:56 PM, Guenter Roeck wrote:
> On 5/26/19 11:32 PM, Tony Lindgren wrote:
>> Hi,
>>
>> * Philippe Mathieu-Daudé <philmd@redhat.com> [190523 12:01]:
>>> What I use as reference for testing ARM boards [*] is the work of
>>> Guenter Roeck:
>>> https://github.com/groeck/linux-build-test/blob/master/rootfs/arm/run-qemu-arm.sh
>>>
>>
>> I think Guenter also has v2.3.50-local-linaro branch in his
>> github repo that has support for few extra boards like Beagleboard.
>> Not sure what's the current branch to use though.
>>
> I'd be happy to use a different (supported) branch, but the Linaro branch
> was the only one I could find that supports those boards. Unfortunately,
> qemu changed so much since 2.3 that it is all but impossible to merge
> the code into mainline qemu without spending a lot of effort on it.

Peter commented on that here:
https://lists.gnu.org/archive/html/qemu-devel/2015-05/msg00137.html

"This is not a trivial job (my estimate was that it would be a couple
of months work to get the complete set sorted out and upstreamed ..."

Re: [Qemu-devel] Running linux on qemu omap

[Peter Maydell]

On Mon, 27 May 2019 at 16:56, Guenter Roeck <linux@roeck-us.net> wrote:
> I'd be happy to use a different (supported) branch, but the Linaro branch
> was the only one I could find that supports those boards. Unfortunately,
> qemu changed so much since 2.3 that it is all but impossible to merge
> the code into mainline qemu without spending a lot of effort on it.

Even back at 2.3 it wasn't possible to merge the code into mainline
without spending a lot of effort -- that's why it was not merged :-)

thanks
-- PMM

Re: [Qemu-devel] Running linux on qemu omap

[Corentin Labbe]

On Wed, May 22, 2019 at 02:23:23AM +0300, Aaro Koskinen wrote:
> Hi,
> 
> On Mon, May 20, 2019 at 09:05:33PM +0200, Corentin Labbe wrote:
> > Hello
> > 
> > I am working on adding a maximum set of qemu machine on kernelCI.
> 
> That's cool.
> 
> > For OMAP, five machine exists and I fail to boot any of them.
> 
> Which machines?
> 
> > The maximum I can get with omap1_defconfig is
> > qemu-system-arm -kernel zImage -nographic -machine cheetah -append 'root=/dev/ram0 console=ttyO0'
> > Uncompressing Linux... done, booting the kernel.
> > then nothing more.
> 
> It's known that omap1_defconfig doesn't work well for QEMU or
> "multi-board" usage. Perhaps the kernel size is now just too big?
> I'm using a custom config for every OMAP1 board anyway...
> 
> > Does someone have a working config+version to share ?
> 
> I have used the below config for OMAP1 SX1 board (the only one I got
> working with QEMU). Unfortunately the functionality is quite limited,
> but it still allows to run e.g. GCC bootstrap & testsuite, that is rare
> nowadays for armv4t.
> 
> I'm using the following command line with qemu-system-arm 3.1.0:
> 
>         -M sx1 \
>         -kernel "sx1-zImage" \
>         -nographic \
>         -drive file="sx1-mmc",if=sd,format=raw \
>         -no-reboot
> 
> This should work with v5.1 kernel.
> 
> I'm also interested to run other OMAP kernels under QEMU, e.g. cheetah
> (the real device, Palm TE works OK with the current mainline), and it
> would be interesting to know why QEMU/kernel has regressed...
> 

Thanks, with your config as starting point, I was able to boot both sx1 and cheetah

So I now use the omap1_defconfig and the only trick is to disable CONFIG_CPU_DCACHE_WRITETHROUGH.
I need also to disable CONFIG_FB for cheetah to works.

Regards