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- server ~ # dd if=/dev/ttyS0 bs=1
- Linux version 5.4.89 (root@server) (gcc version 10.2.0 (Gentoo 10.2.0-r5 p6)) #4 Sun Jan 17 23:07:52 MSK 2021
- CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=0000717f
- CPU: VIVT data cache, VIVT instruction cache
- OF: fdt: Machine model: Atmel AT91RM9200 evaluation kit
- icy: Data cache writeback
- Built 1 zonelists, mobility grouping on. Total pages: 8128
- Kernel command line: console=ttyS0,115200n8 root=/dev/sda ro rootwait noinitrd init=/linuxrc mem=32M
- Dentry cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
- Inode-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
- mem auto-init: stack:off, heap alloc:off, heap free:off
- Memory: 25724K/32768K available (4673K kernel code, 172K rwdata, 1300K rodata, 212K init, 103K bss, 7044K reserved, 0K cma-reserved)
- NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
- random: get_random_bytes called from start_kernel+0x24c/0x43c with crng_init=0
- clocksource: 32k_counter: mask: 0xfffff max_cycles: 0xfffff, max_idle_ns: 14239986419 ns clocksource: timer@fffa0000: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 255243115332 ns sched_clock: 32 bits at 7MHz, resolution 133ns, wraps every 286790016957ns
- Switching to timer-based delay loop, resolution 133ns
- Console: colour dummy device 80x30
- pid_max: default: 32768 minimum: 301
- Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
- Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
- CPU: Testing write buffer coherency: ok
- Setting up static identity map for 0x20008200 - 0x20008258
- devtmpfs: initialized
- clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 14931722236523437 ns futex hash table entries: 256 (order: -1, 3072 bytes, linear)
- pinctrl core: initialized pinctrl subsystem
- NET: Registered protocol family 16
- DMA: preallocated 256 KiB pool for atomic coherent allocations
- cpuidle: using governor ladder
- AT91: PM: standby: standby, suspend: ulp0
- No ATAGs?
- gpio-at91
- gpio-at91
- gpio-at91
- gpio-at91
- pinctrl-at91 ahb:apb:pinctrl@fffff400: initialized AT91 pinctrl driver
- atmel_tcb: probe of fffa0000.timer failed with error -16
- fffff400.gpio: at address (ptrval) fffff600.gpio: at address (ptrval) fffff800.gpio: at address (ptrval) fffffa00.gpio: at address (ptrval)
- AT91: Detected SoC family: at91rm9200
- AT91: Detected SoC: at91rm9200 BGA, revision 1
- SCSI subsystem initialized
- usbcore: registered new interface driver usbfs
- usbcore: registered new interface driver hub
- usbcore: registered new device driver usb
- clocksource: Switched to clocksource timer@fffa0000
- NET: Registered protocol family 2
- tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear) TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
- TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
- TCP: Hash tables configured (established 1024 bind 1024)
- UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
- UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
- NET: Registered protocol family 1
- NetWinder Floating Point Emulator V0.97 (double precision)
- Initialise system trusted keyrings
- workingset: timestamp_bits=30 max_order=13 bucket_order=0
- ntfs: driver 2.1.32 [Flags: R/W].
- fuse: init (API version 7.31)
- NET: Registered protocol family 38
- Key type asymmetric registered
- Asymmetric key parser 'x509' registered
- io scheduler mq-deadline registered
- io scheduler kyber registered
- brd: module loaded
- loop: module loaded
- atmel_usart_serial.0.auto: ttyS0 at MMIO 0xfffff200 (irq = 16, printk: console [ttyS0] enabled
- atmel_usart_serial atmel_usart_serial.0.auto: Not supported ip atmel_usart_serial.1.auto: ttyS2 at MMIO 0xfffc4000 (irq = 28, atmel_usart_serial atmel_usart_serial.1.auto: Not supported ip
- base_baud = 3744000) is a ATMEL_SERIAL
- name nor version, set to uart base_baud = 3744000) is a ATMEL_SERIAL name nor version, set to uart
- atmel_spi fffe0000.spi:
- mtd_dataflash@0 enforce
- random: fast init done
- atmel_spi fffe0000.spi:
- libphy: Fixed MDIO Bus: probed
- ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci-atmel: EHCI Atmel driver can not allocate dma coherent memory
- active low on chipselect handle
- Atmel SPI Controller version 0x0 at 0xfffe0000 (irq 30)
- ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
- ohci-atmel: OHCI Atmel driver
- at91_ohci 300000.ohci: USB Host Controller
- at91_ohci 300000.ohci: new USB bus registered, assigned bus number 1 at91_ohci 300000.ohci: irq 31, io mem 0x00300000
- usb usb1: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 5.04 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
- usb usb1: Product: USB Host Controller
- usb usb1: Manufacturer: Linux 5.4.89 ohci_hcd
- usb usb1: SerialNumber: at91
- hub 1-0:1.0: USB hub found
- hub 1-0:1.0: 2 ports detected
- usbcore: registered new interface driver cdc_acm
- cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters usbcore: registered new interface driver usb-storage
- udc: at91_udc version 3 May 2006
- g_serial gadget: Gadget Serial v2.4 g_serial gadget: g_serial ready
- at91_rtc fffffe00.rtc: registered as rtc0
- at91_rtc fffffe00.rtc: AT91 Real Time Clock driver. at91rm9200_wdt: AT91 Watchdog Timer enabled (5 seconds) sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman
- sdhci-pltfm: SDHCI platform and OF driver helper usbcore: registered new interface driver usbhid usbhid: USB HID core driver
- NET: Registered protocol family 17
- Loading compiled-in X.509 certificates
- at91_rtc fffffe00.rtc: setting system clock to 1998-01-01T00:04:00 UTC (883613040) Waiting for root device /dev/sda...
- usb 1-1: New USB device found, idVendor=14cd, idProduct=8123, bcdDevice= 2.01
- usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=2
- usb 1-1: Product: USB 2.0 SD MMC READER
- usb 1-1: Manufacturer: SDMMC MA8123
- usb 1-1: SerialNumber: 812822222789
- random: crng init done
- usb-storage 1-1:1.0: USB Mass Storage device detected
- scsi host0: usb-storage 1-1:1.0
- scsi 0:0:0:0: Direct-Access USB 2.0 SD MMC Reader PQ: 0 ANSI: 0 CCS
- sd 0:0:0:0: [sda] 60800 512-byte logical blocks: (31.1 MB/29.7 MiB) sd 0:0:0:0: [sda] Write Protect is off
- sd 0:0:0:0: [sda] No Caching mode page found
- sd 0:0:0:0: [sda] Assuming drive cache: write through
- sd 0:0:0:0: [sda] Attached SCSI removable disk
- EXT4-fs (sda): mounted filesystem with ordered data mode. Opts: (null) VFS: Mounted root (ext4 filesystem) readonly on device 8:0.
- devtmpfs: mounted
- Freeing unused kernel memory: 212K
- This architecture does not have kernel memory protection.
- Run /linuxrc as init process
- Busybox is running on the Embest ATEB9200 Evaluation board.
- /bin/ash: can't access tty; job control turned off
- /#
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