[J-u-boot.git] / doc / README.sifive-fu540

FU540-C000 RISC-V SoC
=====================
The FU540-C000 is the world’s first 4+1 64-bit RISC‑V SoC from SiFive.

The HiFive Unleashed development platform is based on FU540-C000 and capable
of running Linux.

Mainline support
================
The support for following drivers are already enabled:
1. SiFive UART Driver.
2. SiFive PRCI Driver for clock.
3. Cadence MACB ethernet driver for networking support.

TODO:
1. SPI driver is still missing. So MMC card can't be used in U-Boot as of now.
2. U-Boot expects the serial console device entry to be present under /chosen
   DT node. Example:
   chosen {
        stdout-path = "/soc/serial@10010000:115200";
   };

   Without a serial console U-Boot will panic.

Building
========
1. Add the RISC-V toolchain to your PATH.
2. Setup ARCH & cross compilation enviornment variable.
   a. export ARCH=riscv
   b. export CROSS_COMPILE=<riscv64 toolchain prefix>
3. make sifive_fu540_defconfig
4. make

Flashing
========
The current U-Boot port is supported in S-mode only and loaded from DRAM.

A prior stage (M-mode) firmware/bootloader (e.g OpenSBI or BBL) is required to
load the u-boot.bin into memory and provide runtime services. The u-boot.bin
can be given as a payload to the prior stage (M-mode) firmware/bootloader.

The description of steps required to build the firmware is beyond the scope of
this document. Please refer OpenSBI or BBL documenation.
(Note: OpenSBI git repo is at https://github.com/riscv/opensbi.git)
(Note: BBL git repo is at https://github.com/riscv/riscv-pk.git)

Once the prior stage firmware/bootloader binary is generated, it should be
copied to the first partition of the sdcard.

sudo dd if=<prior_stage_firmware_binary> of=/dev/disk2s1 bs=1024

Booting
=======
Once you plugin the sdcard and power up, you should see the U-Boot prompt.

Sample boot log from HiFive Unleashed board
===========================================
U-Boot 2019.01-00019-gc7953536-dirty (Jan 22 2019 - 11:05:40 -0800)

CPU:   rv64imafdc
Model: sifive,hifive-unleashed-a00
DRAM:  8 GiB
In:    serial@10010000
Out:   serial@10010000
Err:   serial@10010000
Net:
Warning: ethernet@10090000 (eth0) using random MAC address - b6:75:4d:48:50:94
eth0: ethernet@10090000
Hit any key to stop autoboot:  0
=> version
U-Boot 2019.01-00019-gc7953536-dirty (Jan 22 2019 - 11:05:40 -0800)

riscv64-linux-gcc.br_real (Buildroot 2018.11-rc2-00003-ga0787e9) 8.2.0
GNU ld (GNU Binutils) 2.31.1
=>
===============================================================================

Now you can configure your networking, tftp server and use tftp boot method to
load uImage.

==========================================================================
=> setenv ethaddr 70:B3:D5:92:F0:C2
=> setenv ipaddr 10.196.157.189
=> setenv serverip 10.11.143.218
=> setenv gatewayip 10.196.156.1
=> setenv netmask 255.255.252.0
=> bdinfo
boot_params = 0x0000000000000000
DRAM bank   = 0x0000000000000000
-> start    = 0x0000000080000000
-> size     = 0x0000000200000000
relocaddr   = 0x00000000fff90000
reloc off   = 0x000000007fd90000
ethaddr     = 70:B3:D5:92:F0:C2
IP addr     = 10.196.157.189
baudrate    = 115200 bps
=> tftpboot uImage
ethernet@10090000: PHY present at 0
ethernet@10090000: Starting autonegotiation...
ethernet@10090000: Autonegotiation complete
ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3800)
Using ethernet@10090000 device
TFTP from server 10.11.143.218; our IP address is 10.196.157.189; sending through gateway 10.196.156.1
Filename 'uImage'.
Load address: 0x80200000
Loading: #################################################################
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         ##########################################################
         2.5 MiB/s
done
Bytes transferred = 14939132 (e3f3fc hex)
=> bootm 0x80200000 - 0x82200000
## Booting kernel from Legacy Image at 80200000 ...
   Image Name:   Linux
   Image Type:   RISC-V Linux Kernel Image (uncompressed)
   Data Size:    14939068 Bytes = 14.2 MiB
   Load Address: 80200000
   Entry Point:  80200000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 82200000
   Booting using the fdt blob at 0x82200000
   Loading Kernel Image ... OK
   Using Device Tree in place at 0000000082200000, end 0000000082205c69

Starting kernel ...

[    0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
[    0.000000] Linux version 5.0.0-rc1-00020-g4b51f736 (atish@jedi-01) (gcc version 7.2.0 (GCC)) #262 SMP Mon Jan 21 17:39:27 PST 2019
[    0.000000] initrd not found or empty - disabling initrd
[    0.000000] Zone ranges:
[    0.000000]   DMA32    [mem 0x0000000080200000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x000027ffffffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080200000-0x000000027fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x000000027fffffff]
[    0.000000] software IO TLB: mapped [mem 0xfbfff000-0xfffff000] (64MB)
[    0.000000] CPU with hartid=0 has a non-okay status of "masked"
[    0.000000] CPU with hartid=0 has a non-okay status of "masked"
[    0.000000] elf_hwcap is 0x112d
[    0.000000] percpu: Embedded 15 pages/cpu @(____ptrval____) s29720 r0 d31720 u61440
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 2067975
[    0.000000] Kernel command line: earlyprintk
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Sorting __ex_table...
[    0.000000] Memory: 8178760K/8386560K available (3309K kernel code, 248K rwdata, 872K rodata, 9381K init, 763K bss, 207800K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
[    0.000000] plic: mapped 53 interrupts to 4 (out of 9) handlers.
[    0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [1]
[    0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns
[    0.000008] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns
[    0.000221] Console: colour dummy device 80x25
[    0.000902] printk: console [tty0] enabled
[    0.000963] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=10000)
[    0.001034] pid_max: default: 32768 minimum: 301
[    0.001541] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.001912] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.003542] rcu: Hierarchical SRCU implementation.
[    0.004347] smp: Bringing up secondary CPUs ...
[    1.040259] CPU1: failed to come online
[    2.080483] CPU2: failed to come online
[    3.120699] CPU3: failed to come online
[    3.120765] smp: Brought up 1 node, 1 CPU
[    3.121923] devtmpfs: initialized
[    3.124649] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    3.124727] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    3.125346] random: get_random_u32 called from bucket_table_alloc+0x72/0x172 with crng_init=0
[    3.125578] NET: Registered protocol family 16
[    3.126400] sifive-u54-prci 10000000.prci: Registered U54 core clocks
[    3.126649] sifive-gemgxl-mgmt 100a0000.cadence-gemgxl-mgmt: Registered clock switch 'cadence-gemgxl-mgmt'
[    3.135572] vgaarb: loaded
[    3.135858] SCSI subsystem initialized
[    3.136193] usbcore: registered new interface driver usbfs
[    3.136266] usbcore: registered new interface driver hub
[    3.136348] usbcore: registered new device driver usb
[    3.136446] pps_core: LinuxPPS API ver. 1 registered
[    3.136484] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <[email protected]>
[    3.136575] PTP clock support registered
[    3.137256] clocksource: Switched to clocksource riscv_clocksource
[    3.142711] NET: Registered protocol family 2
[    3.143322] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes)
[    3.143634] TCP established hash table entries: 65536 (order: 7, 524288 bytes)
[    3.145799] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    3.149121] TCP: Hash tables configured (established 65536 bind 65536)
[    3.149591] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    3.150094] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[    3.150781] NET: Registered protocol family 1
[    3.230693] workingset: timestamp_bits=62 max_order=21 bucket_order=0
[    3.241224] io scheduler mq-deadline registered
[    3.241269] io scheduler kyber registered
[    3.242143] sifive_gpio 10060000.gpio: SiFive GPIO chip registered 16 GPIOs
[    3.242357] pwm-sifivem 10020000.pwm: Unable to find controller clock
[    3.242439] pwm-sifivem 10021000.pwm: Unable to find controller clock
[    3.243228] xilinx-pcie 2000000000.pci: PCIe Link is DOWN
[    3.243289] xilinx-pcie 2000000000.pci: host bridge /soc/pci@2000000000 ranges:
[    3.243360] xilinx-pcie 2000000000.pci:   No bus range found for /soc/pci@2000000000, using [bus 00-ff]
[    3.243447] xilinx-pcie 2000000000.pci:   MEM 0x40000000..0x5fffffff -> 0x40000000
[    3.243591] xilinx-pcie 2000000000.pci: PCI host bridge to bus 0000:00
[    3.243636] pci_bus 0000:00: root bus resource [bus 00-ff]
[    3.243676] pci_bus 0000:00: root bus resource [mem 0x40000000-0x5fffffff]
[    3.276547] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    3.277689] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 39, base_baud = 0) is a SiFive UART v0
[    3.786963] printk: console [ttySIF0] enabled
[    3.791504] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 40, base_baud = 0) is a SiFive UART v0
[    3.801251] sifive_spi 10040000.spi: mapped; irq=41, cs=1
[    3.806362] m25p80 spi0.0: unrecognized JEDEC id bytes: 9d, 70, 19
[    3.812084] m25p80: probe of spi0.0 failed with error -2
[    3.817453] sifive_spi 10041000.spi: mapped; irq=42, cs=4
[    3.823027] sifive_spi 10050000.spi: mapped; irq=43, cs=1
[    3.828604] libphy: Fixed MDIO Bus: probed
[    3.832623] macb: GEM doesn't support hardware ptp.
[    3.837196] libphy: MACB_mii_bus: probed
[    4.041156] Microsemi VSC8541 SyncE 10090000.ethernet-ffffffff:00: attached PHY driver [Microsemi VSC8541 SyncE] (mii_bus:phy_addr=10090000.ethernet-ffffffff:00, irq=POLL)
[    4.055779] macb 10090000.ethernet eth0: Cadence GEM rev 0x10070109 at 0x10090000 irq 12 (70:b3:d5:92:f0:c2)
[    4.065780] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    4.072033] ehci-pci: EHCI PCI platform driver
[    4.076521] usbcore: registered new interface driver usb-storage
[    4.082843] softdog: initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0)
[    4.127465] mmc_spi spi2.0: SD/MMC host mmc0, no DMA, no WP, no poweroff
[    4.133645] usbcore: registered new interface driver usbhid
[    4.138980] usbhid: USB HID core driver
[    4.143017] NET: Registered protocol family 17
[    4.147885] pwm-sifivem 10020000.pwm: SiFive PWM chip registered 4 PWMs
[    4.153945] pwm-sifivem 10021000.pwm: SiFive PWM chip registered 4 PWMs
[    4.186407] Freeing unused kernel memory: 9380K
[    4.190224] This architecture does not have kernel memory protection.
[    4.196609] Run /init as init process
Starting logging: OK
Starting mdev...
[    4.303785] mmc0: host does not support reading read-only switch, assuming write-enable
[    4.311109] mmc0: new SDHC card on SPI
[    4.317103] mmcblk0: mmc0:0000 SS08G 7.40 GiB
[    4.386471]  mmcblk0: p1 p2
sort: /sys/devices/platform/Fixed: No such file or directory
modprobe: can't change directory to '/lib/modules': No such file or directory
Initializing random[    4.759075] random: dd: uninitialized urandom read (512 bytes read)
 number generator... done.
Starting network...
udhcpc (v1.24.2) started
Sending discover...
Sending discover...
[    7.927510] macb 10090000.ethernet eth0: link up (1000/Full)
Sending discover...
Sending select for 10.196.157.190...
Lease of 10.196.157.190 obtained, lease time 499743
deleting routers
adding dns 10.86.1.1
adding dns 10.86.2.1
/etc/init.d/S50dropbear
Starting dropbear sshd: [   12.772393] random: dropbear: uninitialized urandom read (32 bytes read)
OK

Welcome to Buildroot
buildroot login:
Commit	Line	Data
8ad21045 AP	1	FU540-C000 RISC-V SoC
	2	=====================
	3	The FU540-C000 is the world’s first 4+1 64-bit RISC‑V SoC from SiFive.
	4
	5	The HiFive Unleashed development platform is based on FU540-C000 and capable
	6	of running Linux.
	7
	8	Mainline support
	9	================
	10	The support for following drivers are already enabled:
	11	1. SiFive UART Driver.
	12	2. SiFive PRCI Driver for clock.
	13	3. Cadence MACB ethernet driver for networking support.
	14
	15	TODO:
	16	1. SPI driver is still missing. So MMC card can't be used in U-Boot as of now.
	17	2. U-Boot expects the serial console device entry to be present under /chosen
	18	DT node. Example:
	19	chosen {
	20	stdout-path = "/soc/serial@10010000:115200";
	21	};
	22
	23	Without a serial console U-Boot will panic.
	24
	25	Building
	26	========
	27	1. Add the RISC-V toolchain to your PATH.
	28	2. Setup ARCH & cross compilation enviornment variable.
	29	a. export ARCH=riscv
	30	b. export CROSS_COMPILE=<riscv64 toolchain prefix>
	31	3. make sifive_fu540_defconfig
	32	4. make
	33
	34	Flashing
	35	========
	36	The current U-Boot port is supported in S-mode only and loaded from DRAM.
	37
	38	A prior stage (M-mode) firmware/bootloader (e.g OpenSBI or BBL) is required to
	39	load the u-boot.bin into memory and provide runtime services. The u-boot.bin
	40	can be given as a payload to the prior stage (M-mode) firmware/bootloader.
	41
	42	The description of steps required to build the firmware is beyond the scope of
	43	this document. Please refer OpenSBI or BBL documenation.
	44	(Note: OpenSBI git repo is at https://github.com/riscv/opensbi.git)
	45	(Note: BBL git repo is at https://github.com/riscv/riscv-pk.git)
	46
	47	Once the prior stage firmware/bootloader binary is generated, it should be
	48	copied to the first partition of the sdcard.
	49
	50	sudo dd if=<prior_stage_firmware_binary> of=/dev/disk2s1 bs=1024
	51
	52	Booting
	53	=======
	54	Once you plugin the sdcard and power up, you should see the U-Boot prompt.
	55
	56	Sample boot log from HiFive Unleashed board
	57	===========================================
	58	U-Boot 2019.01-00019-gc7953536-dirty (Jan 22 2019 - 11:05:40 -0800)
	59
	60	CPU: rv64imafdc
	61	Model: sifive,hifive-unleashed-a00
	62	DRAM: 8 GiB
	63	In: serial@10010000
	64	Out: serial@10010000
65	Err: serial@10010000
66	Net:
67	Warning: ethernet@10090000 (eth0) using random MAC address - b6:75:4d:48:50:94
68	eth0: ethernet@10090000
69	Hit any key to stop autoboot: 0
70	=> version
71	U-Boot 2019.01-00019-gc7953536-dirty (Jan 22 2019 - 11:05:40 -0800)
72
73	riscv64-linux-gcc.br_real (Buildroot 2018.11-rc2-00003-ga0787e9) 8.2.0
74	GNU ld (GNU Binutils) 2.31.1
75	=>
76	===============================================================================
77
78	Now you can configure your networking, tftp server and use tftp boot method to
79	load uImage.
80
81	==========================================================================
82	=> setenv ethaddr 70:B3:D5:92:F0:C2
83	=> setenv ipaddr 10.196.157.189
84	=> setenv serverip 10.11.143.218
85	=> setenv gatewayip 10.196.156.1
86	=> setenv netmask 255.255.252.0
87	=> bdinfo
88	boot_params = 0x0000000000000000
89	DRAM bank = 0x0000000000000000
90	-> start = 0x0000000080000000
91	-> size = 0x0000000200000000
92	relocaddr = 0x00000000fff90000
93	reloc off = 0x000000007fd90000
94	ethaddr = 70:B3:D5:92:F0:C2
95	IP addr = 10.196.157.189
96	baudrate = 115200 bps
97	=> tftpboot uImage
98	ethernet@10090000: PHY present at 0
99	ethernet@10090000: Starting autonegotiation...
100	ethernet@10090000: Autonegotiation complete
101	ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3800)
102	Using ethernet@10090000 device
103	TFTP from server 10.11.143.218; our IP address is 10.196.157.189; sending through gateway 10.196.156.1
104	Filename 'uImage'.
105	Load address: 0x80200000
106	Loading: #################################################################
107	#################################################################
108	#################################################################
109	#################################################################
110	#################################################################
111	#################################################################
112	#################################################################
113	#################################################################
114	#################################################################
115	#################################################################
116	#################################################################
117	#################################################################
118	#################################################################
119	#################################################################
120	#################################################################
121	#################################################################
122	#################################################################
123	#################################################################
124	#################################################################
125	#################################################################
126	#################################################################
127	#################################################################
128	#################################################################
129	#################################################################
130	#################################################################
131	#################################################################
132	#################################################################
133	#################################################################
134	#################################################################
135	#################################################################
136	#################################################################
137	#################################################################
138	#################################################################
139	#################################################################
140	#################################################################
141	#################################################################
142	#################################################################
143	#################################################################
144	#################################################################
145	#################################################################
146	#################################################################
147	#################################################################
148	#################################################################
149	#################################################################
150	##########################################################
151	2.5 MiB/s
152	done
153	Bytes transferred = 14939132 (e3f3fc hex)
154	=> bootm 0x80200000 - 0x82200000
155	## Booting kernel from Legacy Image at 80200000 ...
156	Image Name: Linux
157	Image Type: RISC-V Linux Kernel Image (uncompressed)
158	Data Size: 14939068 Bytes = 14.2 MiB
159	Load Address: 80200000
160	Entry Point: 80200000
161	Verifying Checksum ... OK
162	## Flattened Device Tree blob at 82200000
163	Booting using the fdt blob at 0x82200000
164	Loading Kernel Image ... OK
165	Using Device Tree in place at 0000000082200000, end 0000000082205c69
166
167	Starting kernel ...
168
169	[ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
170	[ 0.000000] Linux version 5.0.0-rc1-00020-g4b51f736 (atish@jedi-01) (gcc version 7.2.0 (GCC)) #262 SMP Mon Jan 21 17:39:27 PST 2019
171	[ 0.000000] initrd not found or empty - disabling initrd
172	[ 0.000000] Zone ranges:
173	[ 0.000000] DMA32 [mem 0x0000000080200000-0x00000000ffffffff]
174	[ 0.000000] Normal [mem 0x0000000100000000-0x000027ffffffffff]
175	[ 0.000000] Movable zone start for each node
176	[ 0.000000] Early memory node ranges
177	[ 0.000000] node 0: [mem 0x0000000080200000-0x000000027fffffff]
178	[ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x000000027fffffff]
179	[ 0.000000] software IO TLB: mapped [mem 0xfbfff000-0xfffff000] (64MB)
180	[ 0.000000] CPU with hartid=0 has a non-okay status of "masked"
181	[ 0.000000] CPU with hartid=0 has a non-okay status of "masked"
182	[ 0.000000] elf_hwcap is 0x112d
183	[ 0.000000] percpu: Embedded 15 pages/cpu @(____ptrval____) s29720 r0 d31720 u61440
184	[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2067975
185	[ 0.000000] Kernel command line: earlyprintk
186	[ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
187	[ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
188	[ 0.000000] Sorting __ex_table...
189	[ 0.000000] Memory: 8178760K/8386560K available (3309K kernel code, 248K rwdata, 872K rodata, 9381K init, 763K bss, 207800K reserved, 0K cma-reserved)
190	[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
191	[ 0.000000] rcu: Hierarchical RCU implementation.
192	[ 0.000000] rcu: RCU event tracing is enabled.
193	[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
194	[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
195	[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
196	[ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
197	[ 0.000000] plic: mapped 53 interrupts to 4 (out of 9) handlers.
198	[ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [1]
199	[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns
200	[ 0.000008] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns
201	[ 0.000221] Console: colour dummy device 80x25
202	[ 0.000902] printk: console [tty0] enabled
203	[ 0.000963] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=10000)
204	[ 0.001034] pid_max: default: 32768 minimum: 301
205	[ 0.001541] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
206	[ 0.001912] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
207	[ 0.003542] rcu: Hierarchical SRCU implementation.
208	[ 0.004347] smp: Bringing up secondary CPUs ...
209	[ 1.040259] CPU1: failed to come online
210	[ 2.080483] CPU2: failed to come online
211	[ 3.120699] CPU3: failed to come online
212	[ 3.120765] smp: Brought up 1 node, 1 CPU
213	[ 3.121923] devtmpfs: initialized
214	[ 3.124649] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
215	[ 3.124727] futex hash table entries: 1024 (order: 4, 65536 bytes)
216	[ 3.125346] random: get_random_u32 called from bucket_table_alloc+0x72/0x172 with crng_init=0
217	[ 3.125578] NET: Registered protocol family 16
218	[ 3.126400] sifive-u54-prci 10000000.prci: Registered U54 core clocks
219	[ 3.126649] sifive-gemgxl-mgmt 100a0000.cadence-gemgxl-mgmt: Registered clock switch 'cadence-gemgxl-mgmt'
220	[ 3.135572] vgaarb: loaded
221	[ 3.135858] SCSI subsystem initialized
222	[ 3.136193] usbcore: registered new interface driver usbfs
223	[ 3.136266] usbcore: registered new interface driver hub
224	[ 3.136348] usbcore: registered new device driver usb
225	[ 3.136446] pps_core: LinuxPPS API ver. 1 registered
226	[ 3.136484] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <[email protected]>
227	[ 3.136575] PTP clock support registered
228	[ 3.137256] clocksource: Switched to clocksource riscv_clocksource
229	[ 3.142711] NET: Registered protocol family 2
230	[ 3.143322] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes)
231	[ 3.143634] TCP established hash table entries: 65536 (order: 7, 524288 bytes)
232	[ 3.145799] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
233	[ 3.149121] TCP: Hash tables configured (established 65536 bind 65536)
234	[ 3.149591] UDP hash table entries: 4096 (order: 5, 131072 bytes)
235	[ 3.150094] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
236	[ 3.150781] NET: Registered protocol family 1
237	[ 3.230693] workingset: timestamp_bits=62 max_order=21 bucket_order=0
238	[ 3.241224] io scheduler mq-deadline registered
239	[ 3.241269] io scheduler kyber registered
240	[ 3.242143] sifive_gpio 10060000.gpio: SiFive GPIO chip registered 16 GPIOs
241	[ 3.242357] pwm-sifivem 10020000.pwm: Unable to find controller clock
242	[ 3.242439] pwm-sifivem 10021000.pwm: Unable to find controller clock
243	[ 3.243228] xilinx-pcie 2000000000.pci: PCIe Link is DOWN
244	[ 3.243289] xilinx-pcie 2000000000.pci: host bridge /soc/pci@2000000000 ranges:
245	[ 3.243360] xilinx-pcie 2000000000.pci: No bus range found for /soc/pci@2000000000, using [bus 00-ff]
246	[ 3.243447] xilinx-pcie 2000000000.pci: MEM 0x40000000..0x5fffffff -> 0x40000000
247	[ 3.243591] xilinx-pcie 2000000000.pci: PCI host bridge to bus 0000:00
248	[ 3.243636] pci_bus 0000:00: root bus resource [bus 00-ff]
249	[ 3.243676] pci_bus 0000:00: root bus resource [mem 0x40000000-0x5fffffff]
250	[ 3.276547] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
251	[ 3.277689] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 39, base_baud = 0) is a SiFive UART v0
252	[ 3.786963] printk: console [ttySIF0] enabled
253	[ 3.791504] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 40, base_baud = 0) is a SiFive UART v0
254	[ 3.801251] sifive_spi 10040000.spi: mapped; irq=41, cs=1
255	[ 3.806362] m25p80 spi0.0: unrecognized JEDEC id bytes: 9d, 70, 19
256	[ 3.812084] m25p80: probe of spi0.0 failed with error -2
257	[ 3.817453] sifive_spi 10041000.spi: mapped; irq=42, cs=4
258	[ 3.823027] sifive_spi 10050000.spi: mapped; irq=43, cs=1
259	[ 3.828604] libphy: Fixed MDIO Bus: probed
260	[ 3.832623] macb: GEM doesn't support hardware ptp.
261	[ 3.837196] libphy: MACB_mii_bus: probed
262	[ 4.041156] Microsemi VSC8541 SyncE 10090000.ethernet-ffffffff:00: attached PHY driver [Microsemi VSC8541 SyncE] (mii_bus:phy_addr=10090000.ethernet-ffffffff:00, irq=POLL)
263	[ 4.055779] macb 10090000.ethernet eth0: Cadence GEM rev 0x10070109 at 0x10090000 irq 12 (70:b3:d5:92:f0:c2)
264	[ 4.065780] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
265	[ 4.072033] ehci-pci: EHCI PCI platform driver
266	[ 4.076521] usbcore: registered new interface driver usb-storage
267	[ 4.082843] softdog: initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0)
268	[ 4.127465] mmc_spi spi2.0: SD/MMC host mmc0, no DMA, no WP, no poweroff
269	[ 4.133645] usbcore: registered new interface driver usbhid
270	[ 4.138980] usbhid: USB HID core driver
271	[ 4.143017] NET: Registered protocol family 17
272	[ 4.147885] pwm-sifivem 10020000.pwm: SiFive PWM chip registered 4 PWMs
273	[ 4.153945] pwm-sifivem 10021000.pwm: SiFive PWM chip registered 4 PWMs
274	[ 4.186407] Freeing unused kernel memory: 9380K
275	[ 4.190224] This architecture does not have kernel memory protection.
276	[ 4.196609] Run /init as init process
277	Starting logging: OK
278	Starting mdev...
279	[ 4.303785] mmc0: host does not support reading read-only switch, assuming write-enable
280	[ 4.311109] mmc0: new SDHC card on SPI
281	[ 4.317103] mmcblk0: mmc0:0000 SS08G 7.40 GiB
282	[ 4.386471] mmcblk0: p1 p2
283	sort: /sys/devices/platform/Fixed: No such file or directory
284	modprobe: can't change directory to '/lib/modules': No such file or directory
285	Initializing random[ 4.759075] random: dd: uninitialized urandom read (512 bytes read)
286	number generator... done.
287	Starting network...
288	udhcpc (v1.24.2) started
289	Sending discover...
290	Sending discover...
291	[ 7.927510] macb 10090000.ethernet eth0: link up (1000/Full)
292	Sending discover...
293	Sending select for 10.196.157.190...
294	Lease of 10.196.157.190 obtained, lease time 499743
295	deleting routers
296	adding dns 10.86.1.1
297	adding dns 10.86.2.1
298	/etc/init.d/S50dropbear
299	Starting dropbear sshd: [ 12.772393] random: dropbear: uninitialized urandom read (32 bytes read)
300	OK
301
302	Welcome to Buildroot
303	buildroot login: