[U-Boot] [PATCH v6 15/16] doc: Add a readme guide for SiFive FU540

[Atish Patra <atish.patra@wdc.com>]

On 2/10/19 10:47 AM, Auer, Lukas wrote:
> On Sat, 2019-02-09 at 06:33 +0000, Anup Patel wrote:
>> From: Atish Patra <atish.patra@wdc.com>
>>
>> The readme guide describes the procedure to build, flash and boot
>> Linux
>> using U-boot on HiFive Unleashed. It also explains the current state
>> of
>> U-boot support and future action items.
> 
> nit: U-Boot
> 

Thanks for catching it. I will fix it.

>>
>> Signed-off-by: Atish Patra <atish.patra@wdc.com>
>> Signed-off-by: Anup Patel <anup.patel@wdc.com>
>> ---
>>   doc/README.sifive-fu540 | 302
>> ++++++++++++++++++++++++++++++++++++++++
>>   1 file changed, 302 insertions(+)
>>   create mode 100644 doc/README.sifive-fu540
>>
> 
> Thanks for adding this!
> 
> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
> 
> With two more comments below.
> 
>> diff --git a/doc/README.sifive-fu540 b/doc/README.sifive-fu540
>> new file mode 100644
>> index 0000000000..b19ca2af04
>> --- /dev/null
>> +++ b/doc/README.sifive-fu540
>> @@ -0,0 +1,302 @@
>> +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 at 10010000:115200";
>> +   };
>> +
>> +   Without the above DT entry, U-Boot will not find serial console
>> device and
>> +   nothing will be printed in console.
> 
> Without a serial console U-Boot will panic.
> 

I will update it.

>> +
>> +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.
> 
> Can you add a link to both projects?
> 

Sure.

> Thanks,
> Lukas
> 
>> +
>> +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 at 10010000
>> +Out:   serial at 10010000
>> +Err:   serial at 10010000
>> +Net:
>> +Warning: ethernet at 10090000 (eth0) using random MAC address -
>> b6:75:4d:48:50:94
>> +eth0: ethernet at 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 at 10090000: PHY present at 0
>> +ethernet at 10090000: Starting autonegotiation...
>> +ethernet at 10090000: Autonegotiation complete
>> +ethernet at 10090000: link up, 1000Mbps full-duplex (lpa: 0x3800)
>> +Using ethernet at 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:
>> #################################################################
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ###########################################################
>> ######
>> +         ##########################################################
>> +         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 at 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 <giometti@linux.it>
>> +[    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 at 2000000000 ranges:
>> +[    3.243360] xilinx-pcie 2000000000.pci:   No bus range found for
>> /soc/pci at 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:
>> -- 
>> 2.17.1
>>
>