For devices on custom boards, as typical of embedded and SoC-(system-on-chip) based hardware, Linux uses platform_data to point to board-specific structures describing devices and how they are connected to the SoC. This can include available ports, chip variants, preferred modes, default initialization, additional pin roles, and so on. This shrinks the board-support packages (BSPs) and minimizes board and application specific #ifdefs in drivers.
Ramdisk addr 0x00000000,Compiled-in FDT at 0x804747dcLinux version 4.19.0-g11b5080 (jenkins@romlxbuild1.adlk.analog.com) (gcc version 8.2.0 (crosstool-NG 1.20.0)) #978 Mon Jan 25 16:11:56 GMT 2021setup_memory: max_mapnr: 0x30000setup_memory: min_low_pfn: 0x80000setup_memory: max_low_pfn: 0xb0000setup_memory: max_pfn: 0xb0000Zone ranges: DMA [mem 0x0000000080000000-0x00000000afffffff] Normal emptyMovable zone start for each nodeEarly memory node ranges node 0: [mem 0x0000000080000000-0x00000000ffffefff]Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffefff]On node 0 totalpages: 196608 DMA zone: 1536 pages used for memmap DMA zone: 0 pages reserved DMA zone: 196608 pages, LIFO batch:63setup_cpuinfo: initialisingsetup_cpuinfo: Using full CPU PVR supportERROR: Microblaze HW_MUL-different for PVR and DTSwt_msr_noirqpcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768pcpu-alloc: [0] 0Built 1 zonelists, mobility grouping on. Total pages: 195072Kernel command line: console=ttyUL0,115200Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)Memory: 766132K/786432K available (4561K kernel code, 510K rwdata, 4416K rodata, 2886K init, 92K bss, 20300K reserved, 0K cma-reserved)Kernel virtual memory layout: * 0xffffe000..0xfffff000 : fixmap * 0xffffe000..0xffffe000 : early ioremap * 0xb0000000..0xffffe000 : vmalloc & ioremapNR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0irq-xilinx: mismatch in kind-of-intr paramirq-xilinx: /amba_pl/interrupt-controller@41200000: num_irq=16, edge=0xffff85f0/amba_pl/timer@41c00000: irq=1clocksource: xilinx_clocksource: mask: 0xffffffff max_cycles: 0xffffffff, max_id le_ns: 19112604467 nsxilinx_timer_shutdownxilinx_timer_set_periodicsched_clock: 32 bits at 100MHz, resolution 10ns, wraps every 21474836475nsCalibrating delay loop... 49.35 BogoMIPS (lpj=246784)pid_max: default: 32768 minimum: 301Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)devtmpfs: initializedrandom: get_random_u32 called from bucket_table_alloc.isra.6+0x1e8/0x218 with cr ng_init=0clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911 2604462750000 nsfutex hash table entries: 256 (order: -1, 3072 bytes)NET: Registered protocol family 16jesd204: found 0 devices and 0 topologiesclocksource: Switched to clocksource xilinx_clocksourceNET: Registered protocol family 2tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)TCP established hash table entries: 8192 (order: 3, 32768 bytes)TCP bind hash table entries: 8192 (order: 3, 32768 bytes)TCP: Hash tables configured (established 8192 bind 8192)UDP hash table entries: 512 (order: 1, 8192 bytes)UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)NET: Registered protocol family 1RPC: Registered named UNIX socket transport module.RPC: Registered udp transport module.RPC: Registered tcp transport module.RPC: Registered tcp NFSv4.1 backchannel transport module.random: fast init doneSkipping unavailable RESET gpio -2 (reset)workingset: timestamp_bits=30 max_order=18 bucket_order=0jffs2: version 2.2. (NAND) (SUMMARY) 2001-2006 Red Hat, Inc.Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)io scheduler noop registeredio scheduler deadline registeredio scheduler cfq registered (default)io scheduler mq-deadline registeredio scheduler kyber registeredSerial: 8250/16550 driver, 4 ports, IRQ sharing disabled40600000.serial: ttyUL0 at MMIO 0x40600000 (irq = 5, base_baud = 0) is a uartlit econsole [ttyUL0] enabledbrd: module loadedXilinx SystemACE device driver, major=254xilinx_spi 44a70000.axi_quad_spi: no CS gpios availablelibphy: Fixed MDIO Bus: probedxilinx_axienet 40c00000.ethernet: TX_CSUM 2xilinx_axienet 40c00000.ethernet: RX_CSUM 2xilinx_axienet 40c00000.ethernet: missing/invalid xlnx,addrwidth property, using defaultlibphy: Xilinx Axi Ethernet MDIO: probedi2c /dev entries driveri2c i2c-0: Added multiplexed i2c bus 1at24 2-0050: 256 byte 24c02 EEPROM, writable, 1 bytes/writei2c i2c-0: Added multiplexed i2c bus 2i2c i2c-0: Added multiplexed i2c bus 3i2c i2c-0: Added multiplexed i2c bus 4i2c i2c-0: Added multiplexed i2c bus 5i2c i2c-0: Added multiplexed i2c bus 6i2c i2c-0: Added multiplexed i2c bus 7i2c i2c-0: Added multiplexed i2c bus 8pca954x 0-0075: registered 8 multiplexed busses for I2C switch pca9548axi_adxcvr 44a60000.axi-adxcvr-rx: AXI-ADXCVR-RX (17.01.a) using QPLL on GTY4 at 0x44A60000. Number of lanes: 8.axi_adxcvr 44b60000.axi-adxcvr-rx: AXI-ADXCVR-RX (17.01.a) using QPLL on GTY4 at 0x44B60000. Number of lanes: 8.NET: Registered protocol family 17ad9208 spi0.1: AD9208 PLL LOCKEDad9208 spi0.1: Failed to request FastDetect IRQs (-6)ad9208 spi0.1: AD9208 DUAL (MASTER with DMA) Rev. 3 Grade 0 (API 1.0.1) probedad9208 spi0.2: AD9208 PLL LOCKEDad9208 spi0.2: Failed to request FastDetect IRQs (-6)ad9208 spi0.2: AD9208 Rev. 3 Grade 0 (API 1.0.1) probediio_dmaengine_buffer_alloc:227 width 0 (DMA width >= 256-bits ?)cf_axi_adc 44a10000.axi-ad9208-0-hpc: ADI AIM (10.01.b) at 0x44A10000 mapped to 0x(ptrval), probed ADC AD9208 DUAL (MASTER with DMA) as MASTERcf_axi_adc 44b10000.axi-ad9208-1-hpc: ADI AIM (10.01.b) at 0x44B10000 mapped to 0x(ptrval), probed ADC AD9208 as MASTERFreeing unused kernel memory: 2884KThis architecture does not have kernel memory protection.Run /init as init processStarting logging: OKInitializing random number generator... random: dd: uninitialized urandom read ( 512 bytes read)done.Starting network: udhcpc: started, v1.27.2net eth0: Promiscuous mode disabled.net eth0: Promiscuous mode disabled.udhcpc: sending discoverxilinx_axienet 40c00000.ethernet eth0: Link is Downudhcpc: sending discoverxilinx_axienet 40c00000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx /txudhcpc: sending discoverudhcpc: sending discoverudhcpc: sending discoverudhcpc: sending discoverudhcpc: sending discoverudhcpc: no lease, failingStarting dropbear sshd: random: dropbear: uninitialized urandom read (32 bytes r ead)OKStarting IIO Server DaemonWelcome to Buildrootbuildroot login: rootPassword:# ifconfig -aeth0 Link encap:Ethernet HWaddr 00:0A:35:00:00:00 inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:1710 (1.6 KiB)lo Link encap:Local Loopback LOOPBACK MTU:65536 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)# random: crng init done
Clockgen unable to init driver
Ramdisk addr 0x73333333, Compiled-in FDT at 0x804747dcLinux version 4.19.0-g11b5080 (jenkins@romlxbuild1.adlk.analog.com) (gcc version 8.2.0 (crosstool-NG 1.20.0)) #978 Mon Jan 25 16:11:56 GMT 2021setup_memory: max_mapnr: 0x30000setup_memory: min_low_pfn: 0x80000setup_memory: max_low_pfn: 0xb0000setup_memory: max_pfn: 0xb0000Zone ranges: DMA [mem 0x0000000080000000-0x00000000afffffff] Normal emptyMovable zone start for each nodeEarly memory node ranges node 0: [mem 0x0000000080000000-0x00000000ffffefff]Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffefff]On node 0 totalpages: 196608 DMA zone: 1536 pages used for memmap DMA zone: 0 pages reserved DMA zone: 196608 pages, LIFO batch:63setup_cpuinfo: initialisingsetup_cpuinfo: Using full CPU PVR supportERROR: Microblaze HW_MUL-different for PVR and DTSwt_msr_noirqpcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768pcpu-alloc: [0] 0 Built 1 zonelists, mobility grouping on. Total pages: 195072Kernel command line: console=ttyUL0,115200Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)Memory: 766132K/786432K available (4561K kernel code, 510K rwdata, 4416K rodata, 2886K init, 92K bss, 20300K reserved, 0K cma-reserved)Kernel virtual memory layout: * 0xffffe000..0xfffff000 : fixmap * 0xffffe000..0xffffe000 : early ioremap * 0xb0000000..0xffffe000 : vmalloc & ioremapNR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0irq-xilinx: mismatch in kind-of-intr paramirq-xilinx: /amba_pl/interrupt-controller@41200000: num_irq=16, edge=0xffff85f0/amba_pl/timer@41c00000: irq=1clocksource: xilinx_clocksource: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 nsxilinx_timer_shutdownxilinx_timer_set_periodicsched_clock: 32 bits at 100MHz, resolution 10ns, wraps every 21474836475nsCalibrating delay loop... 49.35 BogoMIPS (lpj=246784)pid_max: default: 32768 minimum: 301Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)devtmpfs: initializedrandom: get_random_u32 called from bucket_table_alloc.isra.6+0x1e8/0x218 with crng_init=0clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 nsfutex hash table entries: 256 (order: -1, 3072 bytes)NET: Registered protocol family 16jesd204: found 0 devices and 0 topologiesclocksource: Switched to clocksource xilinx_clocksourceNET: Registered protocol family 2tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)TCP established hash table entries: 8192 (order: 3, 32768 bytes)TCP bind hash table entries: 8192 (order: 3, 32768 bytes)TCP: Hash tables configured (established 8192 bind 8192)UDP hash table entries: 512 (order: 1, 8192 bytes)UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)NET: Registered protocol family 1RPC: Registered named UNIX socket transport module.RPC: Registered udp transport module.RPC: Registered tcp transport module.RPC: Registered tcp NFSv4.1 backchannel transport module.random: fast init doneSkipping unavailable RESET gpio -2 (reset)workingset: timestamp_bits=30 max_order=18 bucket_order=0jffs2: version 2.2. (NAND) (SUMMARY) 2001-2006 Red Hat, Inc.Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)io scheduler noop registeredio scheduler deadline registeredio scheduler cfq registered (default)io scheduler mq-deadline registeredio scheduler kyber registeredSerial: 8250/16550 driver, 4 ports, IRQ sharing disabled40600000.serial: ttyUL0 at MMIO 0x40600000 (irq = 5, base_baud = 0) is a uartliteconsole [ttyUL0] enabledbrd: module loadedXilinx SystemACE device driver, major=254xilinx_spi 44a70000.axi_quad_spi: no CS gpios availablelibphy: Fixed MDIO Bus: probedxilinx_axienet 40c00000.ethernet: TX_CSUM 2xilinx_axienet 40c00000.ethernet: RX_CSUM 2xilinx_axienet 40c00000.ethernet: missing/invalid xlnx,addrwidth property, using defaultlibphy: Xilinx Axi Ethernet MDIO: probedi2c /dev entries driveri2c i2c-0: Added multiplexed i2c bus 1at24 2-0050: 256 byte 24c02 EEPROM, writable, 1 bytes/writei2c i2c-0: Added multiplexed i2c bus 2i2c i2c-0: Added multiplexed i2c bus 3i2c i2c-0: Added multiplexed i2c bus 4i2c i2c-0: Added multiplexed i2c bus 5i2c i2c-0: Added multiplexed i2c bus 6i2c i2c-0: Added multiplexed i2c bus 7i2c i2c-0: Added multiplexed i2c bus 8pca954x 0-0075: registered 8 multiplexed busses for I2C switch pca9548axi_adxcvr 44a60000.axi-adxcvr-rx: AXI-ADXCVR-RX (17.01.a) using QPLL on GTY4 at 0x44A60000. Number of lanes: 8.axi_adxcvr 44b60000.axi-adxcvr-rx: AXI-ADXCVR-RX (17.01.a) using QPLL on GTY4 at 0x44B60000. Number of lanes: 8.NET: Registered protocol family 17ad9208 spi0.1: AD9208 PLL LOCKEDad9208 spi0.1: Failed to request FastDetect IRQs (-6)ad9208 spi0.1: AD9208 DUAL (MASTER with DMA) Rev. 3 Grade 0 (API 1.0.1) probedad9208 spi0.2: AD9208 PLL LOCKEDad9208 spi0.2: Failed to request FastDetect IRQs (-6)ad9208 spi0.2: AD9208 Rev. 3 Grade 0 (API 1.0.1) probediio_dmaengine_buffer_alloc:227 width 0 (DMA width >= 256-bits ?)cf_axi_adc 44a10000.axi-ad9208-0-hpc: ADI AIM (10.01.b) at 0x44A10000 mapped to 0x(ptrval), probed ADC AD9208 DUAL (MASTER with DMA) as MASTERcf_axi_adc 44b10000.axi-ad9208-1-hpc: ADI AIM (10.01.b) at 0x44B10000 mapped to 0x(ptrval), probed ADC AD9208 as MASTERFreeing unused kernel memory: 2884KThis architecture does not have kernel memory protection.Run /init as init processStarting logging: OKInitializing random number generator... random: dd: uninitialized urandom read (512 bytes read)done.Starting network: udhcpc: started, v1.27.2net eth0: Promiscuous mode disabled.net eth0: Promiscuous mode disabled.udhcpc: sending discoverxilinx_axienet 40c00000.ethernet eth0: Link is Downxilinx_axienet 40c00000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/txudhcpc: sending discoverudhcpc: sending select for 10.44.3.56udhcpc: lease of 10.44.3.56 obtained, lease time 43200deleting routersadding dns 10.32.51.110adding dns 10.64.53.110Starting dropbear sshd: random: dropbear: uninitialized urandom read (32 bytes read)OKStarting IIO Server DaemonWelcome to Buildrootbuildroot login: Password: # ifconfig eth0 Link encap:Ethernet HWaddr 00:0A:35:00:00:00 inet addr:10.44.3.56 Bcast:10.44.3.255 Mask:255.255.255.0 UP BROADCAST RUNNING MTU:1500 Metric:1 RX packets:129 errors:0 dropped:17 overruns:0 frame:0 TX packets:2 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12392 (12.1 KiB) TX bytes:684 (684.0 B)# 2ff7e9595c
Commentaires