Add descriptions about U-Boot SPL feature and how to build and run.
Signed-off-by: Pragnesh Patel pragnesh.patel@sifive.com --- doc/board/sifive/fu540.rst | 409 ++++++++++++++++++++++++++++++++++--- 1 file changed, 385 insertions(+), 24 deletions(-)
diff --git a/doc/board/sifive/fu540.rst b/doc/board/sifive/fu540.rst index 3937222c6c..cf76b88ebc 100644 --- a/doc/board/sifive/fu540.rst +++ b/doc/board/sifive/fu540.rst @@ -42,8 +42,60 @@ Building export ARCH=riscv export CROSS_COMPILE=<riscv64 toolchain prefix>
-3. make sifive_fu540_defconfig -4. make +User can use FSBL or u-boot-spl as the 1st stage bootloader. + +1) Use FSBL as the 1st stage bootloader + +.. code-block:: console + + git clone https://github.com/sifive/freedom-u540-c000-bootloader.git + cd freedom-u540-c000-bootloader + make + + cd <u-boot-dir> + make sifive_fu540_defconfig + make + + git clone https://github.com/riscv/opensbi.git + cd opensbi + make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<path to u-boot-dtb.bin> + +This will generate a fw_payload.bin (build/platform/sifive/fu540/firmware/fw_payload.bin) + +u-boot-dtb.bin is used as a payload of the OpenSBI FW_PAYLOAD firmware. + +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) + +2) Use u-boot-spl as the 1st stage bootloader + +Before building U-Boot SPL, OpenSBI must be built first. OpenSBI can be +cloned and built for FU540 as below: + +.. code-block:: console + + git clone https://github.com/riscv/opensbi.git + cd opensbi + make PLATFORM=sifive/fu540 + +Copy OpenSBI FW_DYNAMIC image (build/platform/sifive/fu540/firmware/fw_dynamic.bin) +into U-Boot root directory + +.. code-block:: console + + cp build/platform/sifive/fu540/firmware/fw_dynamic.bin <u-boot-dir> + +Now build the u-boot-spl and U-Boot proper + +.. code-block:: console + + cd <u-boot-dir> + make sifive_fu540_defconfig + make + +This will generate spl/u-boot-spl.bin and FIT image (u-boot.itb) +
Flashing -------- @@ -53,28 +105,55 @@ 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: +1) Use FSBL as the 1st stage bootloader + +ZSBL loads the FSBL (fsbl.bin) from a partition with GUID type +5B193300-FC78-40CD-8002-E86C45580B47 + +FSBL loads the fw_payload.bin from a partition with GUID type +2E54B353-1271-4842-806F-E436D6AF6985 + +Once the prior stage firmware/bootloader binary is generated, it should be +copied to the first partition of the sdcard.
.. code-block:: none
-make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<path to u-boot-dtb.bin> + sudo dd if=fsbl.bin of=/dev/disk2s4 bs=1024 + sudo dd if=fw_payload.bin of=/dev/disk2s1 bs=1024
-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) +Assuming that /dev/disk2s4 partition is of GUID type +5B193300-FC78-40CD-8002-E86C45580B47 and /dev/disk2s1 partition +is of GUID type 2E54B353-1271-4842-806F-E436D6AF6985 + +2) Use u-boot-spl as the 1st stage bootloader + +ZSBL loads the U-Boot SPL (u-boot-spl.bin) from a partition with GUID type +5B193300-FC78-40CD-8002-E86C45580B47 + +U-boot SPL expects a U-Boot FIT image (u-boot.itb) from 1st partition (/dev/sdc1) +of SD card irrespective of GUID + +FIT image (u-boot.itb) is a combination of fw_dynamic.bin, u-boot-nodtb.bin and +device tree blob (hifive-unleashed-a00.dtb)
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 + sudo dd if=spl/u-boot-spl.bin of=/dev/disk2s4 bs=1024 + sudo dd if=u-boot.itb of=/dev/disk2s1 bs=1024 + +Assuming that /dev/disk2s4 partition is of GUID type +5B193300-FC78-40CD-8002-E86C45580B47 and /dev/disk2s1 is of +any GUID type raw partition.
Booting ------- Once you plugin the sdcard and power up, you should see the U-Boot prompt.
+1) Use FSBL as the 1st stage bootloader + Sample boot log from HiFive Unleashed board -------------------------------------------
@@ -145,19 +224,6 @@ load uImage. Filename '/sifive/fu540/Image'. Load address: 0x84000000 Loading: ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# - ################################################################# ################################################################# ################################################################# ################################################################# @@ -184,8 +250,6 @@ load uImage. Filename '/sifive/fu540/uRamdisk'. Load address: 0x88300000 Loading: ################################################################# - ################################################################# - ################################################################# ################################################################# ################################################################# ################################################################# @@ -363,3 +427,300 @@ load uImage.
Please press Enter to activate this console. / # + + +2) Use u-boot-spl as the 1st stage bootloader + +The U-Boot SPL will boot in M mode and load the FIT image which include +OpenSBI and U-Boot proper images. After loading progress, it will jump +to OpenSBI first and then U-Boot proper which will run in S mode. + +Sample boot log from HiFive Unleashed board +------------------------------------------- + +.. code-block:: none + + U-Boot SPL 2020.04-rc1-00212-g375b0a2dad-dirty (Feb 13 2020 - 17:45:44 +0530) + Trying to boot from MMC1 + + + U-Boot 2020.04-rc1-00212-g375b0a2dad-dirty (Feb 13 2020 - 17:45:44 +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 + Board serial number should not be 0 !! + Net: + Warning: ethernet@10090000 (eth0) using random MAC address - 92:79:17:2d:7b:b7 + eth0: ethernet@10090000 + Hit any key to stop autoboot: 0 + => version + U-Boot 2020.04-rc1-00212-g375b0a2dad-dirty (Feb 13 2020 - 17:45:44 +0530) + + riscv64-unknown-linux-gnu-gcc (crosstool-NG 1.24.0.37-3f461da) 9.2.0 + GNU ld (crosstool-NG 1.24.0.37-3f461da) 2.32 + => mmc info + Device: spi@10050000:mmc@0 + Manufacturer ID: 3 + OEM: 5344 + Name: SC16G + Bus Speed: 20000000 + Mode: SD Legacy + Rd Block Len: 512 + SD version 2.0 + High Capacity: Yes + Capacity: 14.8 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 "SiFive bare-metal (or stage 2 loader" + attrs: 0x0000000000000000 + type: 2e54b353-1271-4842-806f-e436d6af6985 + guid: 3c9eabe1-b16b-4a2e-9b4e-f065c740bb86 + 2 0x00040800 0x00ecdfde "Linux filesystem" + attrs: 0x0000000000000000 + type: 0fc63daf-8483-4772-8e79-3d69d8477de4 + guid: ad9309ff-d204-42f0-9f99-f3275a83f565 + +Now you can configure your networking, tftp server and use tftp boot method to +load uImage. + +.. code-block:: none + + => setenv serverip 172.16.35.74 + => setenv ipaddr 172.16.35.40 + => tftpboot 0x83000000 fit.itb + ethernet@10090000: PHY present at 0 + ethernet@10090000: Starting autonegotiation... + ethernet@10090000: Autonegotiation complete + ethernet@10090000: link up, 100Mbps full-duplex (lpa: 0x41e1) + Using ethernet@10090000 device + TFTP from server 172.16.35.74; our IP address is 172.16.35.40 + Filename 'fit.itb'. + Load address: 0x83000000 + Loading: ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################# + ################################################################ + ################################### + 878.9 KiB/s + done + Bytes transferred = 13823823 (d2ef4f hex) + => bootm 0x83000000 + ## Loading kernel from FIT Image at 83000000 ... + Using 'config-1' configuration + Trying 'kernel@1' kernel subimage + Description: Linux kernel + Type: Kernel Image + Compression: uncompressed + Data Start: 0x830000d8 + Data Size: 9247260 Bytes = 8.8 MiB + Architecture: RISC-V + OS: Linux + Load Address: 0x80200000 + Entry Point: 0x80200000 + Verifying Hash Integrity ... OK + ## Loading ramdisk from FIT Image at 83000000 ... + Using 'config-1' configuration + Trying 'ramdisk@1' ramdisk subimage + Description: ramdisk + Type: RAMDisk Image + Compression: gzip compressed + Data Start: 0x838d3378 + Data Size: 4568674 Bytes = 4.4 MiB + Architecture: RISC-V + OS: Linux + Load Address: 0x82000000 + Entry Point: unavailable + Verifying Hash Integrity ... OK + Loading ramdisk from 0x838d3378 to 0x82000000 + WARNING: 'compression' nodes for ramdisks are deprecated, please fix your .its file! + ## Loading fdt from FIT Image at 83000000 ... + Using 'config-1' configuration + Trying 'fdt@1' fdt subimage + Description: unavailable + Type: Flat Device Tree + Compression: uncompressed + Data Start: 0x838d1b80 + Data Size: 6023 Bytes = 5.9 KiB + Architecture: RISC-V + Verifying Hash Integrity ... OK + Booting using the fdt blob at 0x838d1b80 + Loading Kernel Image + Using Device Tree in place at 00000000838d1b80, end 00000000838d6306 + + Starting kernel ... + + [ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000 + [ 0.000000] Linux version 5.3.0-13236-g97f9a3c4eee5 (pragneshp@sachinj2-OptiPlex-7010) (gcc version 8.2.0 (Buildroot 2018.11-rc2-00003-ga0787e9 + [ 0.000000] earlycon: sifive0 at MMIO 0x0000000010010000 (options '') + [ 0.000000] printk: bootconsole [sifive0] enabled + [ 0.000000] Initial ramdisk at: 0x(____ptrval____) (4568674 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 17 pages/cpu s30680 r8192 d30760 u69632 + [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2067975 + [ 0.000000] Kernel command line: earlycon=sifive,0x10010000 console=ttySIF0,115200 + [ 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: 8179828K/8386560K available (6081K kernel code, 388K rwdata, 2025K rodata, 209K init, 307K bss, 206732K reserved, 0K cma-r) + [ 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 [2] + [ 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 + [ 0.008467] Console: colour dummy device 80x25 + [ 0.012819] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=4000) + [ 0.022844] pid_max: default: 32768 minimum: 301 + [ 0.027915] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) + [ 0.035332] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) + [ 0.044791] rcu: Hierarchical SRCU implementation. + [ 0.049255] smp: Bringing up secondary CPUs ... + [ 0.055034] smp: Brought up 1 node, 4 CPUs + [ 0.059664] devtmpfs: initialized + [ 0.063818] random: get_random_u32 called from bucket_table_alloc.isra.29+0x4e/0x160 with crng_init=0 + [ 0.072588] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns + [ 0.082000] futex hash table entries: 1024 (order: 4, 65536 bytes, linear) + [ 0.089513] NET: Registered protocol family 16 + [ 0.105911] vgaarb: loaded + [ 0.108166] SCSI subsystem initialized + [ 0.111946] usbcore: registered new interface driver usbfs + [ 0.117105] usbcore: registered new interface driver hub + [ 0.122486] usbcore: registered new device driver usb + [ 0.128073] clocksource: Switched to clocksource riscv_clocksource + [ 0.140277] NET: Registered protocol family 2 + [ 0.144449] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, linear) + [ 0.152620] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) + [ 0.162238] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, linear) + [ 0.172159] TCP: Hash tables configured (established 65536 bind 65536) + [ 0.178343] UDP hash table entries: 4096 (order: 5, 131072 bytes, linear) + [ 0.185140] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, linear) + [ 0.192553] NET: Registered protocol family 1 + [ 0.196752] RPC: Registered named UNIX socket transport module. + [ 0.202145] RPC: Registered udp transport module. + [ 0.206828] RPC: Registered tcp transport module. + [ 0.211512] RPC: Registered tcp NFSv4.1 backchannel transport module. + [ 0.217939] PCI: CLS 0 bytes, default 64 + [ 0.222139] Unpacking initramfs... + [ 0.578803] Freeing initrd memory: 4460K + [ 0.582972] workingset: timestamp_bits=62 max_order=21 bucket_order=0 + [ 0.596643] NFS: Registering the id_resolver key type + [ 0.600950] Key type id_resolver registered + [ 0.605134] Key type id_legacy registered + [ 0.609090] nfs4filelayout_init: NFSv4 File Layout Driver Registering... + [ 0.615928] 9p: Installing v9fs 9p2000 file system support + [ 0.621581] NET: Registered protocol family 38 + [ 0.625700] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) + [ 0.633051] io scheduler mq-deadline registered + [ 0.637559] io scheduler kyber registered + [ 0.685592] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled + [ 0.692184] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 4, base_baud = 0) is a SiFive UART v0 + [ 0.700566] printk: console [ttySIF0] enabled + [ 0.700566] printk: console [ttySIF0] enabled + [ 0.709228] printk: bootconsole [sifive0] disabled + [ 0.709228] printk: bootconsole [sifive0] disabled + [ 0.719030] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 1, base_baud = 0) is a SiFive UART v0 + [ 0.728364] [drm] radeon kernel modesetting enabled. + [ 0.745292] loop: module loaded + [ 0.748208] sifive_spi 10040000.spi: mapped; irq=3, cs=1 + [ 0.753490] sifive_spi 10050000.spi: mapped; irq=5, cs=1 + [ 0.758811] libphy: Fixed MDIO Bus: probed + [ 0.762886] macb 10090000.ethernet: Registered clk switch 'sifive-gemgxl-mgmt' + [ 0.769643] macb: GEM doesn't support hardware ptp. + [ 0.774532] libphy: MACB_mii_bus: probed + [ 0.940349] Microsemi VSC8541 SyncE 10090000.ethernet-ffffffff:00: attached PHY driver [Microsemi VSC8541 SyncE] (mii_bus:phy_addr=10090000.et) + [ 0.954893] macb 10090000.ethernet eth0: Cadence GEM rev 0x10070109 at 0x10090000 irq 6 (92:79:17:2d:7b:b7) + [ 0.964698] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k + [ 0.970417] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. + [ 0.976410] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver + [ 0.982832] ehci-pci: EHCI PCI platform driver + [ 0.987288] ehci-platform: EHCI generic platform driver + [ 0.992547] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver + [ 0.998646] ohci-pci: OHCI PCI platform driver + [ 1.003092] ohci-platform: OHCI generic platform driver + [ 1.008557] usbcore: registered new interface driver uas + [ 1.013621] usbcore: registered new interface driver usb-storage + [ 1.019695] mousedev: PS/2 mouse device common for all mice + [ 1.050569] mmc_spi spi1.0: SD/MMC host mmc0, no DMA, no WP, no poweroff, cd polling + [ 1.057714] usbcore: registered new interface driver usbhid + [ 1.063098] usbhid: USB HID core driver + [ 1.067805] NET: Registered protocol family 10 + [ 1.072421] Segment Routing with IPv6 + [ 1.075367] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver + [ 1.081745] NET: Registered protocol family 17 + [ 1.085867] 9pnet: Installing 9P2000 support + [ 1.089951] Key type dns_resolver registered + [ 1.096367] Freeing unused kernel memory: 208K + [ 1.100023] This architecture does not have kernel memory protection. + [ 1.106468] Run /init as init process + Starting syslogd: OK + Starting klogd: OK + Starting mdev... + /etc/init.d/S10mdev: line 9: can't create /proc/sys/kernel/hotplug: nonexistent directory + [ 1.167972] mmc0: host does not support reading read-only switch, assuming write-enable + [ 1.175224] mmc0: new SDHC card on SPI + [ 1.180428] mmcblk0: mmc0:0000 SC16G 14.8 GiB + [ 1.214935] mmcblk0: p1 p2 p4 + modprobe: can't change directory to '/lib/modules': No such file or directory + Initializing random number generator... [ 1.664435] random: dd: uninitialized urandom read (512 bytes read) + done. + Starting network: udhcpc: started, v1.29.3 + udhcpc: sending discover + [ 3.756700] macb 10090000.ethernet eth0: link up (100/Full) + [ 3.761515] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready + udhcpc: sending discover + udhcpc: sending select for 172.16.35.4 + udhcpc: lease of 172.16.35.4 obtained, lease time 3600 + deleting routers + adding dns 172.16.34.75 + adding dns 172.16.24.25 + OK + Starting dropbear sshd: [ 4.893179] random: dropbear: uninitialized urandom read (32 bytes read) + OK + + Welcome to Buildroot + buildroot login: root + Password: + #