mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
4243ff11fe
Add booting from SPI for SiFive Unleashed board. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Tested-by: Bin Meng <bin.meng@windriver.com>
576 lines
25 KiB
ReStructuredText
576 lines
25 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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HiFive Unleashed
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================
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FU540-C000 RISC-V SoC
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---------------------
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The FU540-C000 is the world’s first 4+1 64-bit RISC-V SoC from SiFive.
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The HiFive Unleashed development platform is based on FU540-C000 and capable
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of running Linux.
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Mainline support
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----------------
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The support for following drivers are already enabled:
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1. SiFive UART Driver.
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2. SiFive PRCI Driver for clock.
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3. Cadence MACB ethernet driver for networking support.
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4. SiFive SPI Driver.
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5. MMC SPI Driver for MMC/SD support.
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Booting from MMC using FSBL
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---------------------------
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Building
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--------
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1. Add the RISC-V toolchain to your PATH.
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2. Setup ARCH & cross compilation environment variable:
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.. code-block:: none
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export CROSS_COMPILE=<riscv64 toolchain prefix>
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3. make sifive_fu540_defconfig
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4. make
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Flashing
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--------
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The current U-Boot port is supported in S-mode only and loaded from DRAM.
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A prior stage M-mode firmware/bootloader (e.g OpenSBI) is required to
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boot the u-boot.bin in S-mode and provide M-mode runtime services.
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Currently, the u-boot.bin is used as a payload of the OpenSBI FW_PAYLOAD
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firmware. We need to compile OpenSBI with below command:
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.. code-block:: none
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make PLATFORM=generic FW_PAYLOAD_PATH=<path to u-boot-dtb.bin>
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More detailed description of steps required to build FW_PAYLOAD firmware
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is beyond the scope of this document. Please refer OpenSBI documenation.
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(Note: OpenSBI git repo is at https://github.com/riscv/opensbi.git)
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Once the prior stage firmware/bootloader binary is generated, it should be
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copied to the first partition of the sdcard.
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.. code-block:: none
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sudo dd if=<prior_stage_firmware_binary> of=/dev/disk2s1 bs=1024
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Booting
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-------
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Once you plugin the sdcard and power up, you should see the U-Boot prompt.
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Sample boot log from HiFive Unleashed board
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-------------------------------------------
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.. code-block:: none
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U-Boot 2019.07-00024-g350ff02f5b (Jul 22 2019 - 11:45:02 +0530)
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CPU: rv64imafdc
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Model: SiFive HiFive Unleashed A00
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DRAM: 8 GiB
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MMC: spi@10050000:mmc@0: 0
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In: serial@10010000
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Out: serial@10010000
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Err: serial@10010000
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Net: eth0: ethernet@10090000
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Hit any key to stop autoboot: 0
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=> version
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U-Boot 2019.07-00024-g350ff02f5b (Jul 22 2019 - 11:45:02 +0530)
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riscv64-linux-gcc.br_real (Buildroot 2018.11-rc2-00003-ga0787e9) 8.2.0
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GNU ld (GNU Binutils) 2.31.1
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=> mmc info
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Device: spi@10050000:mmc@0
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Manufacturer ID: 3
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OEM: 5344
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Name: SU08G
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Bus Speed: 20000000
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Mode: SD Legacy
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Rd Block Len: 512
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SD version 2.0
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High Capacity: Yes
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Capacity: 7.4 GiB
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Bus Width: 1-bit
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Erase Group Size: 512 Bytes
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=> mmc part
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Partition Map for MMC device 0 -- Partition Type: EFI
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Part Start LBA End LBA Name
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Attributes
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Type GUID
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Partition GUID
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1 0x00000800 0x000107ff "bootloader"
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attrs: 0x0000000000000000
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type: 2e54b353-1271-4842-806f-e436d6af6985
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guid: 393bbd36-7111-491c-9869-ce24008f6403
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2 0x00040800 0x00ecdfde ""
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attrs: 0x0000000000000000
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type: 0fc63daf-8483-4772-8e79-3d69d8477de4
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guid: 7fc9a949-5480-48c7-b623-04923080757f
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Now you can configure your networking, tftp server and use tftp boot method to
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load uImage.
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.. code-block:: none
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=> setenv ipaddr 10.206.7.133
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=> setenv netmask 255.255.252.0
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=> setenv serverip 10.206.4.143
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=> setenv gateway 10.206.4.1
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If you want to use a flat kernel image such as Image file
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.. code-block:: none
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=> tftpboot ${kernel_addr_r} /sifive/fu540/Image
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ethernet@10090000: PHY present at 0
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ethernet@10090000: Starting autonegotiation...
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ethernet@10090000: Autonegotiation complete
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ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3c00)
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Using ethernet@10090000 device
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TFTP from server 10.206.4.143; our IP address is 10.206.7.133
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Filename '/sifive/fu540/Image'.
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Load address: 0x84000000
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Loading: #################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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##########################################
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1.2 MiB/s
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done
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Bytes transferred = 8867100 (874d1c hex)
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Or if you want to use a compressed kernel image file such as Image.gz
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.. code-block:: none
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=> tftpboot ${kernel_addr_r} /sifive/fu540/Image.gz
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ethernet@10090000: PHY present at 0
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ethernet@10090000: Starting autonegotiation...
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ethernet@10090000: Autonegotiation complete
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ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3c00)
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Using ethernet@10090000 device
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TFTP from server 10.206.4.143; our IP address is 10.206.7.133
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Filename '/sifive/fu540/Image.gz'.
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Load address: 0x84000000
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Loading: #################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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##########################################
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1.2 MiB/s
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done
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Bytes transferred = 4809458 (4962f2 hex)
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=>setenv kernel_comp_addr_r 0x90000000
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=>setenv kernel_comp_size 0x500000
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By this time, correct kernel image is loaded and required environment variables
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are set. You can proceed to load the ramdisk and device tree from the tftp server
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as well.
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.. code-block:: none
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=> tftpboot ${ramdisk_addr_r} /sifive/fu540/uRamdisk
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ethernet@10090000: PHY present at 0
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ethernet@10090000: Starting autonegotiation...
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ethernet@10090000: Autonegotiation complete
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ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x3c00)
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Using ethernet@10090000 device
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TFTP from server 10.206.4.143; our IP address is 10.206.7.133
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Filename '/sifive/fu540/uRamdisk'.
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Load address: 0x88300000
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Loading: #################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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#################################################################
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##############
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418.9 KiB/s
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done
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Bytes transferred = 2398272 (249840 hex)
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=> tftpboot ${fdt_addr_r} /sifive/fu540/hifive-unleashed-a00.dtb
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ethernet@10090000: PHY present at 0
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ethernet@10090000: Starting autonegotiation...
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ethernet@10090000: Autonegotiation complete
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ethernet@10090000: link up, 1000Mbps full-duplex (lpa: 0x7c00)
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Using ethernet@10090000 device
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TFTP from server 10.206.4.143; our IP address is 10.206.7.133
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Filename '/sifive/fu540/hifive-unleashed-a00.dtb'.
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Load address: 0x88000000
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Loading: ##
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1000 Bytes/s
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done
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Bytes transferred = 5614 (15ee hex)
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=> setenv bootargs "root=/dev/ram rw console=ttySIF0 ip=dhcp earlycon=sbi"
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=> booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
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## Loading init Ramdisk from Legacy Image at 88300000 ...
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Image Name: Linux RootFS
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Image Type: RISC-V Linux RAMDisk Image (uncompressed)
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Data Size: 2398208 Bytes = 2.3 MiB
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Load Address: 00000000
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Entry Point: 00000000
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Verifying Checksum ... OK
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## Flattened Device Tree blob at 88000000
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Booting using the fdt blob at 0x88000000
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Using Device Tree in place at 0000000088000000, end 00000000880045ed
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Starting kernel ...
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[ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
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[ 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
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[ 0.000000] earlycon: sbi0 at I/O port 0x0 (options '')
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[ 0.000000] printk: bootconsole [sbi0] enabled
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[ 0.000000] Initial ramdisk at: 0x(____ptrval____) (2398208 bytes)
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[ 0.000000] Zone ranges:
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[ 0.000000] DMA32 [mem 0x0000000080200000-0x00000000ffffffff]
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[ 0.000000] Normal [mem 0x0000000100000000-0x000000027fffffff]
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[ 0.000000] Movable zone start for each node
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[ 0.000000] Early memory node ranges
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[ 0.000000] node 0: [mem 0x0000000080200000-0x000000027fffffff]
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[ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x000000027fffffff]
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[ 0.000000] software IO TLB: mapped [mem 0xfbfff000-0xfffff000] (64MB)
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[ 0.000000] CPU with hartid=0 is not available
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[ 0.000000] CPU with hartid=0 is not available
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[ 0.000000] elf_hwcap is 0x112d
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[ 0.000000] percpu: Embedded 18 pages/cpu s34584 r8192 d30952 u73728
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[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2067975
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[ 0.000000] Kernel command line: root=/dev/ram rw console=ttySIF0 ip=dhcp earlycon=sbi
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[ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
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[ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
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[ 0.000000] Sorting __ex_table...
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[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
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[ 0.000000] Memory: 8182308K/8386560K available (5916K kernel code, 368K rwdata, 1840K rodata, 213K init, 304K bss, 204252K reserved, 0K cma-reserved)
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[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
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[ 0.000000] rcu: Hierarchical RCU implementation.
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[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
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[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
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[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
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[ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
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[ 0.000000] plic: mapped 53 interrupts with 4 handlers for 9 contexts.
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[ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [1]
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[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns
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[ 0.000006] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns
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[ 0.008559] Console: colour dummy device 80x25
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[ 0.012989] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=4000)
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[ 0.023104] pid_max: default: 32768 minimum: 301
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[ 0.028273] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
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[ 0.035765] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
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[ 0.045307] rcu: Hierarchical SRCU implementation.
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[ 0.049875] smp: Bringing up secondary CPUs ...
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[ 0.055729] smp: Brought up 1 node, 4 CPUs
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[ 0.060599] devtmpfs: initialized
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[ 0.064819] random: get_random_u32 called from bucket_table_alloc.isra.10+0x4e/0x160 with crng_init=0
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[ 0.073720] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
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[ 0.083176] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
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[ 0.090721] NET: Registered protocol family 16
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[ 0.106319] vgaarb: loaded
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[ 0.108670] SCSI subsystem initialized
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[ 0.112515] usbcore: registered new interface driver usbfs
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[ 0.117758] usbcore: registered new interface driver hub
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[ 0.123167] usbcore: registered new device driver usb
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[ 0.128905] clocksource: Switched to clocksource riscv_clocksource
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[ 0.141239] NET: Registered protocol family 2
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[ 0.145506] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, linear)
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[ 0.153754] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
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[ 0.163466] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, linear)
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[ 0.173468] TCP: Hash tables configured (established 65536 bind 65536)
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[ 0.179739] UDP hash table entries: 4096 (order: 5, 131072 bytes, linear)
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[ 0.186627] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, linear)
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[ 0.194117] NET: Registered protocol family 1
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[ 0.198417] RPC: Registered named UNIX socket transport module.
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[ 0.203887] RPC: Registered udp transport module.
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[ 0.208664] RPC: Registered tcp transport module.
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[ 0.213429] RPC: Registered tcp NFSv4.1 backchannel transport module.
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[ 0.219944] PCI: CLS 0 bytes, default 64
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[ 0.224170] Unpacking initramfs...
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[ 0.262347] Freeing initrd memory: 2336K
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[ 0.266531] workingset: timestamp_bits=62 max_order=21 bucket_order=0
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[ 0.280406] NFS: Registering the id_resolver key type
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[ 0.284798] Key type id_resolver registered
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[ 0.289048] Key type id_legacy registered
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[ 0.293114] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
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[ 0.300262] NET: Registered protocol family 38
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[ 0.304432] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
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[ 0.311862] io scheduler mq-deadline registered
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[ 0.316461] io scheduler kyber registered
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[ 0.356421] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
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[ 0.363004] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 4, base_baud = 0) is a SiFive UART v0
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[ 0.371468] printk: console [ttySIF0] enabled
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[ 0.371468] printk: console [ttySIF0] enabled
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[ 0.380223] printk: bootconsole [sbi0] disabled
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[ 0.380223] printk: bootconsole [sbi0] disabled
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[ 0.389589] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 1, base_baud = 0) is a SiFive UART v0
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[ 0.398680] [drm] radeon kernel modesetting enabled.
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[ 0.412395] loop: module loaded
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[ 0.415214] sifive_spi 10040000.spi: mapped; irq=3, cs=1
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[ 0.420628] sifive_spi 10050000.spi: mapped; irq=5, cs=1
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[ 0.425897] libphy: Fixed MDIO Bus: probed
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[ 0.429964] macb 10090000.ethernet: Registered clk switch 'sifive-gemgxl-mgmt'
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[ 0.436743] macb: GEM doesn't support hardware ptp.
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[ 0.441621] libphy: MACB_mii_bus: probed
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[ 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)
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[ 0.615857] macb 10090000.ethernet eth0: Cadence GEM rev 0x10070109 at 0x10090000 irq 6 (70:b3:d5:92:f2:f3)
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[ 0.625634] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
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[ 0.631381] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
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[ 0.637382] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
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[ 0.643799] ehci-pci: EHCI PCI platform driver
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[ 0.648261] ehci-platform: EHCI generic platform driver
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[ 0.653497] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
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[ 0.659599] ohci-pci: OHCI PCI platform driver
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[ 0.664055] ohci-platform: OHCI generic platform driver
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[ 0.669448] usbcore: registered new interface driver uas
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[ 0.674575] usbcore: registered new interface driver usb-storage
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[ 0.680642] mousedev: PS/2 mouse device common for all mice
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[ 0.709493] mmc_spi spi1.0: SD/MMC host mmc0, no DMA, no WP, no poweroff, cd polling
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[ 0.716615] usbcore: registered new interface driver usbhid
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[ 0.722023] usbhid: USB HID core driver
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[ 0.726738] NET: Registered protocol family 10
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[ 0.731359] Segment Routing with IPv6
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[ 0.734332] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
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[ 0.740687] NET: Registered protocol family 17
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[ 0.744660] Key type dns_resolver registered
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[ 0.806775] mmc0: host does not support reading read-only switch, assuming write-enable
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[ 0.814020] mmc0: new SDHC card on SPI
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[ 0.820137] mmcblk0: mmc0:0000 SU08G 7.40 GiB
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[ 0.850220] mmcblk0: p1 p2
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[ 3.821524] macb 10090000.ethernet eth0: link up (1000/Full)
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[ 3.828938] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
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[ 3.848919] Sending DHCP requests .., OK
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[ 6.252076] IP-Config: Got DHCP answer from 10.206.4.1, my address is 10.206.7.133
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[ 6.259624] IP-Config: Complete:
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[ 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
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||
[ 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.
|
||
/ #
|
||
|
||
Booting from MMC using U-Boot SPL
|
||
---------------------------------
|
||
|
||
Building
|
||
--------
|
||
|
||
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=generic
|
||
export OPENSBI=<path to opensbi/build/platform/generic/firmware/fw_dynamic.bin>
|
||
|
||
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
|
||
--------
|
||
|
||
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 a partition with GUID
|
||
type 2E54B353-1271-4842-806F-E436D6AF6985
|
||
|
||
FIT image (u-boot.itb) is a combination of fw_dynamic.bin, u-boot-nodtb.bin and
|
||
device tree blob (hifive-unleashed-a00.dtb)
|
||
|
||
Format the SD card (make sure the disk has GPT, otherwise use gdisk to switch)
|
||
|
||
.. code-block:: none
|
||
|
||
# sudo sgdisk --clear \
|
||
> --set-alignment=2 \
|
||
> --new=1:34:2081 --change-name=1:loader1 --typecode=1:5B193300-FC78-40CD-8002-E86C45580B47 \
|
||
> --new=2:2082:10273 --change-name=2:loader2 --typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \
|
||
> --new=3:10274: --change-name=3:rootfs --typecode=3:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
|
||
> /dev/sda
|
||
|
||
Program the SD card
|
||
|
||
.. code-block:: none
|
||
|
||
sudo dd if=spl/u-boot-spl.bin of=/dev/sda seek=34
|
||
sudo dd if=u-boot.itb of=/dev/sda seek=2082
|
||
|
||
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 SPL 2020.04-rc2-00109-g63efc7e07e-dirty (Apr 30 2020 - 13:52:36 +0530)
|
||
Trying to boot from MMC1
|
||
|
||
|
||
U-Boot 2020.04-rc2-00109-g63efc7e07e-dirty (Apr 30 2020 - 13:52:36 +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 2020.04-rc2-00109-g63efc7e07e-dirty (Apr 30 2020 - 13:52:36 +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 0x00000022 0x00000821 "loader1"
|
||
attrs: 0x0000000000000000
|
||
type: 5b193300-fc78-40cd-8002-e86c45580b47
|
||
guid: 66e2b5d2-74db-4df8-ad6f-694b3617f87f
|
||
2 0x00000822 0x00002821 "loader2"
|
||
attrs: 0x0000000000000000
|
||
type: 2e54b353-1271-4842-806f-e436d6af6985
|
||
guid: 8befaeaf-bca0-435d-b002-e201f37c0a2f
|
||
3 0x00002822 0x01dacbde "rootfs"
|
||
attrs: 0x0000000000000000
|
||
type: 0fc63daf-8483-4772-8e79-3d69d8477de4
|
||
type: linux
|
||
guid: 9faa81b6-39b1-4418-af5e-89c48f29c20d
|
||
|
||
Booting from SPI
|
||
----------------
|
||
|
||
Use Building steps from "Booting from MMC using U-Boot SPL" section.
|
||
|
||
Partition the SPI in Linux via mtdblock. (Require to boot the board in
|
||
SD boot mode by enabling MTD block in Linux)
|
||
|
||
Use prebuilt image from here [1], which support to partition the SPI flash.
|
||
|
||
.. code-block:: none
|
||
|
||
# sgdisk --clear \
|
||
> --set-alignment=2 \
|
||
> --new=1:40:2087 --change-name=1:loader1 --typecode=1:5B193300-FC78-40CD-8002-E86C45580B47 \
|
||
> --new=2:2088:10279 --change-name=2:loader2 --typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \
|
||
> --new=3:10536:65494 --change-name=3:rootfs --typecode=3:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
|
||
> /dev/mtdblock0
|
||
|
||
Program the SPI (Require to boot the board in SD boot mode)
|
||
|
||
Execute below steps on U-Boot proper,
|
||
|
||
.. code-block:: none
|
||
|
||
tftpboot $kernel_addr_r u-boot-spl.bin
|
||
sf erase 0x5000 $filesize
|
||
sf write $kernel_addr_r 0x5000 $filesize
|
||
|
||
tftpboot $kernel_addr_r u-boot.itb
|
||
sf erase 0x105000 $filesize
|
||
sf write $kernel_addr_r 0x105000 $filesize
|
||
|
||
Power off the board
|
||
|
||
Change DIP switches MSEL[3:0] are set to 0110
|
||
|
||
Power up the board.
|
||
|
||
[1] https://github.com/amarula/bsp-sifive
|