[thirdparty/u-boot.git] / doc / board / sifive / fu540.rst

.. SPDX-License-Identifier: GPL-2.0+

HiFive Unleashed
================

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.
4. SiFive SPI Driver.
5. MMC SPI Driver for MMC/SD support.

TODO:

1. U-Boot expects the serial console device entry to be present under /chosen
   DT node. Without a serial console U-Boot will panic. Example:

.. code-block:: none

   chosen {
        stdout-path = "/soc/serial@10010000:115200";
   };

Building
--------

1. Add the RISC-V toolchain to your PATH.
2. Setup ARCH & cross compilation enviornment variable:

.. code-block:: none

   export ARCH=riscv
   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) is required to
boot the u-boot.bin in S-mode and provide M-mode runtime services.

Currently, the u-boot.bin is used as a payload of the OpenSBI FW_PAYLOAD
firmware. We need to compile OpenSBI with below command:

.. code-block:: none

    make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<path to u-boot.bin> FW_PAYLOAD_FDT_PATH=<path to hifive-unleashed-a00.dtb from Linux>

(Note: Prefer hifive-unleashed-a00.dtb from Linux-5.3 or higher)
(Note: Linux-5.2 is also fine but it does not have ethernet DT node)

More detailed description of steps required to build FW_PAYLOAD firmware
is beyond the scope of this document. Please refer OpenSBI documenation.
(Note: OpenSBI git repo is at https://github.com/riscv/opensbi.git)

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

.. code-block:: none

    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
-------------------------------------------

.. code-block:: none

   U-Boot 2019.07-00024-g350ff02f5b (Jul 22 2019 - 11:45:02 +0530)

   CPU:   rv64imafdc
   Model: SiFive HiFive Unleashed A00
   DRAM:  8 GiB
   MMC:   spi@10050000:mmc@0: 0
   In:    serial@10010000
   Out:   serial@10010000
   Err:   serial@10010000
   Net:   eth0: ethernet@10090000
   Hit any key to stop autoboot:  0
   => version
   U-Boot 2019.07-00024-g350ff02f5b (Jul 22 2019 - 11:45:02 +0530)

   riscv64-linux-gcc.br_real (Buildroot 2018.11-rc2-00003-ga0787e9) 8.2.0
   GNU ld (GNU Binutils) 2.31.1
   => mmc info
   Device: spi@10050000:mmc@0
   Manufacturer ID: 3
   OEM: 5344
   Name: SU08G
   Bus Speed: 20000000
   Mode: SD Legacy
   Rd Block Len: 512
   SD version 2.0
   High Capacity: Yes
   Capacity: 7.4 GiB
   Bus Width: 1-bit
   Erase Group Size: 512 Bytes
   => mmc part

   Partition Map for MMC device 0  --   Partition Type: EFI

   Part    Start LBA       End LBA         Name
           Attributes
           Type GUID
           Partition GUID
     1     0x00000800      0x000107ff      "bootloader"
           attrs:  0x0000000000000000
           type:   2e54b353-1271-4842-806f-e436d6af6985
           guid:   393bbd36-7111-491c-9869-ce24008f6403
     2     0x00040800      0x00ecdfde      ""
           attrs:  0x0000000000000000
           type:   0fc63daf-8483-4772-8e79-3d69d8477de4
           guid:   7fc9a949-5480-48c7-b623-04923080757f

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

.. code-block:: none

   => setenv ipaddr 10.206.7.133
   => setenv netmask 255.255.252.0
   => setenv serverip 10.206.4.143
   => setenv gateway 10.206.4.1
   => tftpboot ${kernel_addr_r} /sifive/fu540/Image
   ethernet@10090000: PHY present at 0
   ethernet@10090000: Starting autonegotiation...
   ethernet@10090000: Autonegotiation complete
   ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3c00)
   Using ethernet@10090000 device
   TFTP from server 10.206.4.143; our IP address is 10.206.7.133
   Filename '/sifive/fu540/Image'.
   Load address: 0x84000000
   Loading: #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            ##########################################
            1.2 MiB/s
   done
   Bytes transferred = 8867100 (874d1c hex)
   => tftpboot ${ramdisk_addr_r} /sifive/fu540/uRamdisk
   ethernet@10090000: PHY present at 0
   ethernet@10090000: Starting autonegotiation...
   ethernet@10090000: Autonegotiation complete
   ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3c00)
   Using ethernet@10090000 device
   TFTP from server 10.206.4.143; our IP address is 10.206.7.133
   Filename '/sifive/fu540/uRamdisk'.
   Load address: 0x88300000
   Loading: #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            #################################################################
            ##############
            418.9 KiB/s
   done
   Bytes transferred = 2398272 (249840 hex)
   => tftpboot ${fdt_addr_r} /sifive/fu540/hifive-unleashed-a00.dtb
   ethernet@10090000: PHY present at 0
   ethernet@10090000: Starting autonegotiation...
   ethernet@10090000: Autonegotiation complete
   ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x7c00)
   Using ethernet@10090000 device
   TFTP from server 10.206.4.143; our IP address is 10.206.7.133
   Filename '/sifive/fu540/hifive-unleashed-a00.dtb'.
   Load address: 0x88000000
   Loading: ##
            1000 Bytes/s
   done
   Bytes transferred = 5614 (15ee hex)
   => setenv bootargs "root=/dev/ram rw console=ttySIF0 ip=dhcp earlycon=sbi"
   => booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
   ## Loading init Ramdisk from Legacy Image at 88300000 ...
      Image Name:   Linux RootFS
      Image Type:   RISC-V Linux RAMDisk Image (uncompressed)
      Data Size:    2398208 Bytes = 2.3 MiB
      Load Address: 00000000
      Entry Point:  00000000
      Verifying Checksum ... OK
   ## Flattened Device Tree blob at 88000000
      Booting using the fdt blob at 0x88000000
      Using Device Tree in place at 0000000088000000, end 00000000880045ed

   Starting kernel ...

   [    0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
   [    0.000000] Linux version 5.3.0-rc1-00003-g460ac558152f (anup@anup-lab-machine) (gcc version 8.2.0 (Buildroot 2018.11-rc2-00003-ga0787e9)) #6 SMP Mon Jul 22 10:01:01 IST 2019
   [    0.000000] earlycon: sbi0 at I/O port 0x0 (options '')
   [    0.000000] printk: bootconsole [sbi0] enabled
   [    0.000000] Initial ramdisk at: 0x(____ptrval____) (2398208 bytes)
   [    0.000000] Zone ranges:
   [    0.000000]   DMA32    [mem 0x0000000080200000-0x00000000ffffffff]
   [    0.000000]   Normal   [mem 0x0000000100000000-0x000000027fffffff]
   [    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 is not available
   [    0.000000] CPU with hartid=0 is not available
   [    0.000000] elf_hwcap is 0x112d
   [    0.000000] percpu: Embedded 18 pages/cpu s34584 r8192 d30952 u73728
   [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 2067975
   [    0.000000] Kernel command line: root=/dev/ram rw console=ttySIF0 ip=dhcp earlycon=sbi
   [    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
   [    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
   [    0.000000] Sorting __ex_table...
   [    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
   [    0.000000] Memory: 8182308K/8386560K available (5916K kernel code, 368K rwdata, 1840K rodata, 213K init, 304K bss, 204252K 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 restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
   [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 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 with 4 handlers for 9 contexts.
   [    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
   [    0.000006] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns
   [    0.008559] Console: colour dummy device 80x25
   [    0.012989] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=4000)
   [    0.023104] pid_max: default: 32768 minimum: 301
   [    0.028273] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
   [    0.035765] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
   [    0.045307] rcu: Hierarchical SRCU implementation.
   [    0.049875] smp: Bringing up secondary CPUs ...
   [    0.055729] smp: Brought up 1 node, 4 CPUs
   [    0.060599] devtmpfs: initialized
   [    0.064819] random: get_random_u32 called from bucket_table_alloc.isra.10+0x4e/0x160 with crng_init=0
   [    0.073720] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
   [    0.083176] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
   [    0.090721] NET: Registered protocol family 16
   [    0.106319] vgaarb: loaded
   [    0.108670] SCSI subsystem initialized
   [    0.112515] usbcore: registered new interface driver usbfs
   [    0.117758] usbcore: registered new interface driver hub
   [    0.123167] usbcore: registered new device driver usb
   [    0.128905] clocksource: Switched to clocksource riscv_clocksource
   [    0.141239] NET: Registered protocol family 2
   [    0.145506] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, linear)
   [    0.153754] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
   [    0.163466] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, linear)
   [    0.173468] TCP: Hash tables configured (established 65536 bind 65536)
   [    0.179739] UDP hash table entries: 4096 (order: 5, 131072 bytes, linear)
   [    0.186627] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, linear)
   [    0.194117] NET: Registered protocol family 1
   [    0.198417] RPC: Registered named UNIX socket transport module.
   [    0.203887] RPC: Registered udp transport module.
   [    0.208664] RPC: Registered tcp transport module.
   [    0.213429] RPC: Registered tcp NFSv4.1 backchannel transport module.
   [    0.219944] PCI: CLS 0 bytes, default 64
   [    0.224170] Unpacking initramfs...
   [    0.262347] Freeing initrd memory: 2336K
   [    0.266531] workingset: timestamp_bits=62 max_order=21 bucket_order=0
   [    0.280406] NFS: Registering the id_resolver key type
   [    0.284798] Key type id_resolver registered
   [    0.289048] Key type id_legacy registered
   [    0.293114] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
   [    0.300262] NET: Registered protocol family 38
   [    0.304432] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
   [    0.311862] io scheduler mq-deadline registered
   [    0.316461] io scheduler kyber registered
   [    0.356421] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
   [    0.363004] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 4, base_baud = 0) is a SiFive UART v0
   [    0.371468] printk: console [ttySIF0] enabled
   [    0.371468] printk: console [ttySIF0] enabled
   [    0.380223] printk: bootconsole [sbi0] disabled
   [    0.380223] printk: bootconsole [sbi0] disabled
   [    0.389589] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 1, base_baud = 0) is a SiFive UART v0
   [    0.398680] [drm] radeon kernel modesetting enabled.
   [    0.412395] loop: module loaded
   [    0.415214] sifive_spi 10040000.spi: mapped; irq=3, cs=1
   [    0.420628] sifive_spi 10050000.spi: mapped; irq=5, cs=1
   [    0.425897] libphy: Fixed MDIO Bus: probed
   [    0.429964] macb 10090000.ethernet: Registered clk switch 'sifive-gemgxl-mgmt'
   [    0.436743] macb: GEM doesn't support hardware ptp.
   [    0.441621] libphy: MACB_mii_bus: probed
   [    0.601316] Microsemi VSC8541 SyncE 10090000.ethernet-ffffffff:00: attached PHY driver [Microsemi VSC8541 SyncE] (mii_bus:phy_addr=10090000.ethernet-ffffffff:00, irq=POLL)
   [    0.615857] macb 10090000.ethernet eth0: Cadence GEM rev 0x10070109 at 0x10090000 irq 6 (70:b3:d5:92:f2:f3)
   [    0.625634] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
   [    0.631381] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
   [    0.637382] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
   [    0.643799] ehci-pci: EHCI PCI platform driver
   [    0.648261] ehci-platform: EHCI generic platform driver
   [    0.653497] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
   [    0.659599] ohci-pci: OHCI PCI platform driver
   [    0.664055] ohci-platform: OHCI generic platform driver
   [    0.669448] usbcore: registered new interface driver uas
   [    0.674575] usbcore: registered new interface driver usb-storage
   [    0.680642] mousedev: PS/2 mouse device common for all mice
   [    0.709493] mmc_spi spi1.0: SD/MMC host mmc0, no DMA, no WP, no poweroff, cd polling
   [    0.716615] usbcore: registered new interface driver usbhid
   [    0.722023] usbhid: USB HID core driver
   [    0.726738] NET: Registered protocol family 10
   [    0.731359] Segment Routing with IPv6
   [    0.734332] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
   [    0.740687] NET: Registered protocol family 17
   [    0.744660] Key type dns_resolver registered
   [    0.806775] mmc0: host does not support reading read-only switch, assuming write-enable
   [    0.814020] mmc0: new SDHC card on SPI
   [    0.820137] mmcblk0: mmc0:0000 SU08G 7.40 GiB
   [    0.850220]  mmcblk0: p1 p2
   [    3.821524] macb 10090000.ethernet eth0: link up (1000/Full)
   [    3.828938] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
   [    3.848919] Sending DHCP requests .., OK
   [    6.252076] IP-Config: Got DHCP answer from 10.206.4.1, my address is 10.206.7.133
   [    6.259624] IP-Config: Complete:
   [    6.262831]      device=eth0, hwaddr=70:b3:d5:92:f2:f3, ipaddr=10.206.7.133, mask=255.255.252.0, gw=10.206.4.1
   [    6.272809]      host=dhcp-10-206-7-133, domain=sdcorp.global.sandisk.com, nis-domain=(none)
   [    6.281228]      bootserver=10.206.126.11, rootserver=10.206.126.11, rootpath=
   [    6.281232]      nameserver0=10.86.1.1, nameserver1=10.86.2.1
   [    6.294179]      ntpserver0=10.86.1.1, ntpserver1=10.86.2.1
   [    6.301026] Freeing unused kernel memory: 212K
   [    6.304683] This architecture does not have kernel memory protection.
   [    6.311121] Run /init as init process
              _  _
             | ||_|
             | | _ ____  _   _  _  _
             | || |  _ \| | | |\ \/ /
             | || | | | | |_| |/    \
             |_||_|_| |_|\____|\_/\_/

                  Busybox Rootfs

   Please press Enter to activate this console.
   / #
Commit	Line	Data
a719a62c BM	1	.. SPDX-License-Identifier: GPL-2.0+
	2
	3	HiFive Unleashed
	4	================
	5
	6	FU540-C000 RISC-V SoC
	7	---------------------
	8	The FU540-C000 is the world’s first 4+1 64-bit RISC-V SoC from SiFive.
	9
	10	The HiFive Unleashed development platform is based on FU540-C000 and capable
	11	of running Linux.
	12
	13	Mainline support
	14	----------------
	15	The support for following drivers are already enabled:
	16
	17	1. SiFive UART Driver.
	18	2. SiFive PRCI Driver for clock.
	19	3. Cadence MACB ethernet driver for networking support.
88af42d3 AP	20	4. SiFive SPI Driver.
88af42d3 AP	21	5. MMC SPI Driver for MMC/SD support.
a719a62c BM	22
	23	TODO:
	24
	25	1. U-Boot expects the serial console device entry to be present under /chosen
	26	DT node. Without a serial console U-Boot will panic. Example:
	27
	28	.. code-block:: none
	29
	30	chosen {
	31	stdout-path = "/soc/serial@10010000:115200";
	32	};
	33
	34	Building
	35	--------
	36
	37	1. Add the RISC-V toolchain to your PATH.
	38	2. Setup ARCH & cross compilation enviornment variable:
	39
	40	.. code-block:: none
	41
	42	export ARCH=riscv
	43	export CROSS_COMPILE=<riscv64 toolchain prefix>
	44
	45	3. make sifive_fu540_defconfig
	46	4. make
	47
	48	Flashing
	49	--------
	50
	51	The current U-Boot port is supported in S-mode only and loaded from DRAM.
	52
88af42d3 AP	53	A prior stage M-mode firmware/bootloader (e.g OpenSBI) is required to
88af42d3 AP	54	boot the u-boot.bin in S-mode and provide M-mode runtime services.
a719a62c	55
88af42d3 AP	56	Currently, the u-boot.bin is used as a payload of the OpenSBI FW_PAYLOAD
	57	firmware. We need to compile OpenSBI with below command:
	58
	59	.. code-block:: none
	60
	61	make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<path to u-boot.bin> FW_PAYLOAD_FDT_PATH=<path to hifive-unleashed-a00.dtb from Linux>
	62
	63	(Note: Prefer hifive-unleashed-a00.dtb from Linux-5.3 or higher)
	64	(Note: Linux-5.2 is also fine but it does not have ethernet DT node)
	65
	66	More detailed description of steps required to build FW_PAYLOAD firmware
	67	is beyond the scope of this document. Please refer OpenSBI documenation.
a719a62c	68	(Note: OpenSBI git repo is at https://github.com/riscv/opensbi.git)
a719a62c BM	69
	70	Once the prior stage firmware/bootloader binary is generated, it should be
	71	copied to the first partition of the sdcard.
	72
	73	.. code-block:: none
	74
	75	sudo dd if=<prior_stage_firmware_binary> of=/dev/disk2s1 bs=1024
	76
	77	Booting
	78	-------
	79	Once you plugin the sdcard and power up, you should see the U-Boot prompt.
	80
	81	Sample boot log from HiFive Unleashed board
	82	-------------------------------------------
	83
	84	.. code-block:: none
	85
88af42d3	86	U-Boot 2019.07-00024-g350ff02f5b (Jul 22 2019 - 11:45:02 +0530)
a719a62c BM	87
a719a62c BM	88	CPU: rv64imafdc
88af42d3	89	Model: SiFive HiFive Unleashed A00
a719a62c	90	DRAM: 8 GiB
88af42d3	91	MMC: spi@10050000:mmc@0: 0
a719a62c BM	92	In: serial@10010000
	93	Out: serial@10010000
	94	Err: serial@10010000
88af42d3	95	Net: eth0: ethernet@10090000
a719a62c BM	96	Hit any key to stop autoboot: 0
a719a62c BM	97	=> version
88af42d3	98	U-Boot 2019.07-00024-g350ff02f5b (Jul 22 2019 - 11:45:02 +0530)
a719a62c BM	99
	100	riscv64-linux-gcc.br_real (Buildroot 2018.11-rc2-00003-ga0787e9) 8.2.0
	101	GNU ld (GNU Binutils) 2.31.1
88af42d3 AP	102	=> mmc info
	103	Device: spi@10050000:mmc@0
	104	Manufacturer ID: 3
	105	OEM: 5344
	106	Name: SU08G
	107	Bus Speed: 20000000
	108	Mode: SD Legacy
	109	Rd Block Len: 512
	110	SD version 2.0
	111	High Capacity: Yes
	112	Capacity: 7.4 GiB
	113	Bus Width: 1-bit
	114	Erase Group Size: 512 Bytes
	115	=> mmc part
	116
	117	Partition Map for MMC device 0 -- Partition Type: EFI
	118
	119	Part Start LBA End LBA Name
	120	Attributes
	121	Type GUID
	122	Partition GUID
	123	1 0x00000800 0x000107ff "bootloader"
	124	attrs: 0x0000000000000000
	125	type: 2e54b353-1271-4842-806f-e436d6af6985
	126	guid: 393bbd36-7111-491c-9869-ce24008f6403
	127	2 0x00040800 0x00ecdfde ""
	128	attrs: 0x0000000000000000
	129	type: 0fc63daf-8483-4772-8e79-3d69d8477de4
	130	guid: 7fc9a949-5480-48c7-b623-04923080757f
a719a62c BM	131
	132	Now you can configure your networking, tftp server and use tftp boot method to
	133	load uImage.
	134
	135	.. code-block:: none
	136
88af42d3	137	=> setenv ipaddr 10.206.7.133
a719a62c	138	=> setenv netmask 255.255.252.0
88af42d3 AP	139	=> setenv serverip 10.206.4.143
	140	=> setenv gateway 10.206.4.1
	141	=> tftpboot ${kernel_addr_r} /sifive/fu540/Image
a719a62c BM	142	ethernet@10090000: PHY present at 0
	143	ethernet@10090000: Starting autonegotiation...
	144	ethernet@10090000: Autonegotiation complete
88af42d3	145	ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3c00)
a719a62c	146	Using ethernet@10090000 device
88af42d3 AP	147	TFTP from server 10.206.4.143; our IP address is 10.206.7.133
	148	Filename '/sifive/fu540/Image'.
	149	Load address: 0x84000000
a719a62c BM	150	Loading: #################################################################
	151	#################################################################
	152	#################################################################
	153	#################################################################
	154	#################################################################
	155	#################################################################
	156	#################################################################
	157	#################################################################
	158	#################################################################
	159	#################################################################
	160	#################################################################
	161	#################################################################
	162	#################################################################
	163	#################################################################
	164	#################################################################
	165	#################################################################
	166	#################################################################
	167	#################################################################
	168	#################################################################
	169	#################################################################
	170	#################################################################
	171	#################################################################
	172	#################################################################
	173	#################################################################
	174	#################################################################
	175	#################################################################
88af42d3 AP	176	##########################################
	177	1.2 MiB/s
	178	done
	179	Bytes transferred = 8867100 (874d1c hex)
	180	=> tftpboot ${ramdisk_addr_r} /sifive/fu540/uRamdisk
	181	ethernet@10090000: PHY present at 0
	182	ethernet@10090000: Starting autonegotiation...
	183	ethernet@10090000: Autonegotiation complete
	184	ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3c00)
	185	Using ethernet@10090000 device
	186	TFTP from server 10.206.4.143; our IP address is 10.206.7.133
	187	Filename '/sifive/fu540/uRamdisk'.
	188	Load address: 0x88300000
	189	Loading: #################################################################
a719a62c BM	190	#################################################################
	191	#################################################################
	192	#################################################################
	193	#################################################################
	194	#################################################################
	195	#################################################################
88af42d3 AP	196	##############
	197	418.9 KiB/s
	198	done
	199	Bytes transferred = 2398272 (249840 hex)
	200	=> tftpboot ${fdt_addr_r} /sifive/fu540/hifive-unleashed-a00.dtb
	201	ethernet@10090000: PHY present at 0
	202	ethernet@10090000: Starting autonegotiation...
	203	ethernet@10090000: Autonegotiation complete
	204	ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x7c00)
	205	Using ethernet@10090000 device
	206	TFTP from server 10.206.4.143; our IP address is 10.206.7.133
	207	Filename '/sifive/fu540/hifive-unleashed-a00.dtb'.
	208	Load address: 0x88000000
	209	Loading: ##
	210	1000 Bytes/s
a719a62c	211	done
88af42d3 AP	212	Bytes transferred = 5614 (15ee hex)
	213	=> setenv bootargs "root=/dev/ram rw console=ttySIF0 ip=dhcp earlycon=sbi"
	214	=> booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
	215	## Loading init Ramdisk from Legacy Image at 88300000 ...
	216	Image Name: Linux RootFS
	217	Image Type: RISC-V Linux RAMDisk Image (uncompressed)
	218	Data Size: 2398208 Bytes = 2.3 MiB
	219	Load Address: 00000000
	220	Entry Point: 00000000
a719a62c	221	Verifying Checksum ... OK
88af42d3 AP	222	## Flattened Device Tree blob at 88000000
	223	Booting using the fdt blob at 0x88000000
	224	Using Device Tree in place at 0000000088000000, end 00000000880045ed
a719a62c BM	225
	226	Starting kernel ...
	227
	228	[ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
88af42d3 AP	229	[ 0.000000] Linux version 5.3.0-rc1-00003-g460ac558152f (anup@anup-lab-machine) (gcc version 8.2.0 (Buildroot 2018.11-rc2-00003-ga0787e9)) #6 SMP Mon Jul 22 10:01:01 IST 2019
	230	[ 0.000000] earlycon: sbi0 at I/O port 0x0 (options '')
	231	[ 0.000000] printk: bootconsole [sbi0] enabled
	232	[ 0.000000] Initial ramdisk at: 0x(____ptrval____) (2398208 bytes)
a719a62c BM	233	[ 0.000000] Zone ranges:
a719a62c BM	234	[ 0.000000] DMA32 [mem 0x0000000080200000-0x00000000ffffffff]
88af42d3	235	[ 0.000000] Normal [mem 0x0000000100000000-0x000000027fffffff]
a719a62c BM	236	[ 0.000000] Movable zone start for each node
	237	[ 0.000000] Early memory node ranges
	238	[ 0.000000] node 0: [mem 0x0000000080200000-0x000000027fffffff]
	239	[ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x000000027fffffff]
	240	[ 0.000000] software IO TLB: mapped [mem 0xfbfff000-0xfffff000] (64MB)
88af42d3 AP	241	[ 0.000000] CPU with hartid=0 is not available
88af42d3 AP	242	[ 0.000000] CPU with hartid=0 is not available
a719a62c	243	[ 0.000000] elf_hwcap is 0x112d
88af42d3	244	[ 0.000000] percpu: Embedded 18 pages/cpu s34584 r8192 d30952 u73728
a719a62c	245	[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2067975
88af42d3 AP	246	[ 0.000000] Kernel command line: root=/dev/ram rw console=ttySIF0 ip=dhcp earlycon=sbi
	247	[ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
	248	[ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
a719a62c	249	[ 0.000000] Sorting __ex_table...
88af42d3 AP	250	[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
88af42d3 AP	251	[ 0.000000] Memory: 8182308K/8386560K available (5916K kernel code, 368K rwdata, 1840K rodata, 213K init, 304K bss, 204252K reserved, 0K cma-reserved)
a719a62c BM	252	[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
a719a62c BM	253	[ 0.000000] rcu: Hierarchical RCU implementation.
a719a62c	254	[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
88af42d3	255	[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
a719a62c BM	256	[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
a719a62c BM	257	[ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
88af42d3	258	[ 0.000000] plic: mapped 53 interrupts with 4 handlers for 9 contexts.
a719a62c BM	259	[ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [1]
a719a62c BM	260	[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns
88af42d3 AP	261	[ 0.000006] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns
	262	[ 0.008559] Console: colour dummy device 80x25
	263	[ 0.012989] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=4000)
	264	[ 0.023104] pid_max: default: 32768 minimum: 301
	265	[ 0.028273] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
	266	[ 0.035765] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
	267	[ 0.045307] rcu: Hierarchical SRCU implementation.
	268	[ 0.049875] smp: Bringing up secondary CPUs ...
	269	[ 0.055729] smp: Brought up 1 node, 4 CPUs
	270	[ 0.060599] devtmpfs: initialized
	271	[ 0.064819] random: get_random_u32 called from bucket_table_alloc.isra.10+0x4e/0x160 with crng_init=0
	272	[ 0.073720] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
	273	[ 0.083176] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
	274	[ 0.090721] NET: Registered protocol family 16
	275	[ 0.106319] vgaarb: loaded
	276	[ 0.108670] SCSI subsystem initialized
	277	[ 0.112515] usbcore: registered new interface driver usbfs
	278	[ 0.117758] usbcore: registered new interface driver hub
	279	[ 0.123167] usbcore: registered new device driver usb
	280	[ 0.128905] clocksource: Switched to clocksource riscv_clocksource
	281	[ 0.141239] NET: Registered protocol family 2
	282	[ 0.145506] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, linear)
	283	[ 0.153754] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
	284	[ 0.163466] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, linear)
	285	[ 0.173468] TCP: Hash tables configured (established 65536 bind 65536)
	286	[ 0.179739] UDP hash table entries: 4096 (order: 5, 131072 bytes, linear)
	287	[ 0.186627] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, linear)
	288	[ 0.194117] NET: Registered protocol family 1
	289	[ 0.198417] RPC: Registered named UNIX socket transport module.
	290	[ 0.203887] RPC: Registered udp transport module.
	291	[ 0.208664] RPC: Registered tcp transport module.
	292	[ 0.213429] RPC: Registered tcp NFSv4.1 backchannel transport module.
	293	[ 0.219944] PCI: CLS 0 bytes, default 64
	294	[ 0.224170] Unpacking initramfs...
	295	[ 0.262347] Freeing initrd memory: 2336K
	296	[ 0.266531] workingset: timestamp_bits=62 max_order=21 bucket_order=0
	297	[ 0.280406] NFS: Registering the id_resolver key type
	298	[ 0.284798] Key type id_resolver registered
	299	[ 0.289048] Key type id_legacy registered
	300	[ 0.293114] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
	301	[ 0.300262] NET: Registered protocol family 38
	302	[ 0.304432] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
	303	[ 0.311862] io scheduler mq-deadline registered
	304	[ 0.316461] io scheduler kyber registered
	305	[ 0.356421] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
	306	[ 0.363004] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 4, base_baud = 0) is a SiFive UART v0
	307	[ 0.371468] printk: console [ttySIF0] enabled
	308	[ 0.371468] printk: console [ttySIF0] enabled
	309	[ 0.380223] printk: bootconsole [sbi0] disabled
	310	[ 0.380223] printk: bootconsole [sbi0] disabled
	311	[ 0.389589] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 1, base_baud = 0) is a SiFive UART v0
	312	[ 0.398680] [drm] radeon kernel modesetting enabled.
	313	[ 0.412395] loop: module loaded
	314	[ 0.415214] sifive_spi 10040000.spi: mapped; irq=3, cs=1
	315	[ 0.420628] sifive_spi 10050000.spi: mapped; irq=5, cs=1
	316	[ 0.425897] libphy: Fixed MDIO Bus: probed
	317	[ 0.429964] macb 10090000.ethernet: Registered clk switch 'sifive-gemgxl-mgmt'
	318	[ 0.436743] macb: GEM doesn't support hardware ptp.
	319	[ 0.441621] libphy: MACB_mii_bus: probed
	320	[ 0.601316] Microsemi VSC8541 SyncE 10090000.ethernet-ffffffff:00: attached PHY driver [Microsemi VSC8541 SyncE] (mii_bus:phy_addr=10090000.ethernet-ffffffff:00, irq=POLL)
	321	[ 0.615857] macb 10090000.ethernet eth0: Cadence GEM rev 0x10070109 at 0x10090000 irq 6 (70:b3:d5:92:f2:f3)
	322	[ 0.625634] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
	323	[ 0.631381] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
	324	[ 0.637382] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
325	[ 0.643799] ehci-pci: EHCI PCI platform driver
326	[ 0.648261] ehci-platform: EHCI generic platform driver
327	[ 0.653497] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
328	[ 0.659599] ohci-pci: OHCI PCI platform driver
329	[ 0.664055] ohci-platform: OHCI generic platform driver
330	[ 0.669448] usbcore: registered new interface driver uas
331	[ 0.674575] usbcore: registered new interface driver usb-storage
332	[ 0.680642] mousedev: PS/2 mouse device common for all mice
333	[ 0.709493] mmc_spi spi1.0: SD/MMC host mmc0, no DMA, no WP, no poweroff, cd polling
334	[ 0.716615] usbcore: registered new interface driver usbhid
335	[ 0.722023] usbhid: USB HID core driver
336	[ 0.726738] NET: Registered protocol family 10
337	[ 0.731359] Segment Routing with IPv6
338	[ 0.734332] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
339	[ 0.740687] NET: Registered protocol family 17
340	[ 0.744660] Key type dns_resolver registered
341	[ 0.806775] mmc0: host does not support reading read-only switch, assuming write-enable
342	[ 0.814020] mmc0: new SDHC card on SPI
343	[ 0.820137] mmcblk0: mmc0:0000 SU08G 7.40 GiB
344	[ 0.850220] mmcblk0: p1 p2
345	[ 3.821524] macb 10090000.ethernet eth0: link up (1000/Full)
346	[ 3.828938] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
347	[ 3.848919] Sending DHCP requests .., OK
348	[ 6.252076] IP-Config: Got DHCP answer from 10.206.4.1, my address is 10.206.7.133
349	[ 6.259624] IP-Config: Complete:
350	[ 6.262831] device=eth0, hwaddr=70:b3:d5:92:f2:f3, ipaddr=10.206.7.133, mask=255.255.252.0, gw=10.206.4.1
351	[ 6.272809] host=dhcp-10-206-7-133, domain=sdcorp.global.sandisk.com, nis-domain=(none)
352	[ 6.281228] bootserver=10.206.126.11, rootserver=10.206.126.11, rootpath=
353	[ 6.281232] nameserver0=10.86.1.1, nameserver1=10.86.2.1
354	[ 6.294179] ntpserver0=10.86.1.1, ntpserver1=10.86.2.1
355	[ 6.301026] Freeing unused kernel memory: 212K
356	[ 6.304683] This architecture does not have kernel memory protection.
357	[ 6.311121] Run /init as init process
358	_ _
359	\| \|\|_\|
360	\| \| _ ____ _ _ _ _
361	\| \|\| \| _ \\| \| \| \|\ \/ /
362	\| \|\| \| \| \| \| \|_\| \|/ \
363	\|_\|\|_\|_\| \|_\|\____\|\_/\_/
364
365	Busybox Rootfs
366
367	Please press Enter to activate this console.
368	/ #