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sifive: fu540: Add Booting from SPI

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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>
This commit is contained in:
Jagan Teki 2020-07-15 15:38:59 +05:30 committed by Andes
parent 868e295ef7
commit 4243ff11fe
3 changed files with 57 additions and 0 deletions
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12
arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
View File

@ -16,6 +16,10 @@
spi2 = &qspi2;
};
config {
u-boot,spl-payload-offset = <0x105000>; /* loader2 @1044KB */
};
hfclk {
u-boot,dm-spl;
};
@ -26,6 +30,14 @@
};
&qspi0 {
u-boot,dm-spl;
flash@0 {
u-boot,dm-spl;
};
};
&qspi2 {
mmc@0 {
u-boot,dm-spl;

4
configs/sifive_fu540_defconfig
View File

@ -6,6 +6,7 @@ CONFIG_SPL_DM_SPI=y
CONFIG_SPL_MMC_SUPPORT=y
CONFIG_NR_DRAM_BANKS=1
CONFIG_SPL=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y
CONFIG_TARGET_SIFIVE_FU540=y
CONFIG_ARCH_RV64I=y
@ -16,8 +17,11 @@ CONFIG_MISC_INIT_R=y
CONFIG_DISPLAY_CPUINFO=y
CONFIG_DISPLAY_BOARDINFO=y
CONFIG_SPL_SEPARATE_BSS=y
CONFIG_SPL_DM_SPI_FLASH=y
CONFIG_SPL_SPI_LOAD=y
CONFIG_SPL_YMODEM_SUPPORT=y
CONFIG_DEFAULT_DEVICE_TREE="hifive-unleashed-a00"
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_SPL_DM_SEQ_ALIAS=y
CONFIG_SPL_CLK=y
CONFIG_DM_MTD=y

41
doc/board/sifive/fu540.rst
View File

@ -533,3 +533,44 @@ Sample boot log from HiFive Unleashed board
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