mb/sifive: Add Hifive Unmatched mainboard

working:
Linux v6.3.5
poweroff via Linux PMIC driver
UART console output
SPI -> SDCARD
I2C -> PMIC
16 GB LPDDR4 memory
VSC8541XMV-02 (gigabit ethernet PHY)
PCIe x16 Slot
M.2 NVMe Slot
MSEL: only '1100' has been tested

untested:
M.2 WiFi/Bluetooth Slot

tested bootflow:
ZSBL -> coreboot --FDT-> Linuxboot -> uroot --kexec-> ubuntu

defconfig used:
CONFIG_VENDOR_SIFIVE=y
CONFIG_BOARD_SIFIVE_HIFIVE_UNMATCHED=y
CONFIG_PAYLOAD_NONE=n
CONFIG_PAYLOAD_ELF=y
CONFIG_PAYLOAD_FILE="[path-to-linux]/arch/riscv/boot/Image"
CONFIG_PAYLOAD_IS_FLAT_BINARY=y
CONFIG_PAYLOAD_OPTIONS="-l 0x82000000 -e 0x82000000"
CONFIG_COMPRESSED_PAYLOAD_LZMA=y

uroot kexec command:
kexec -d --cmdline "console=ttySIF0 root=/dev/mmcblk0p1 debug" \
         --initrd /mnt/boot/initrd.img-6.5.0-9-generic \
                  /mnt/boot/vmlinuz-6.5.0-9-generic

Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: Ife0afdce89d5a1a1b936c30c8027f1bc191b8c53
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79954
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: ron minnich <rminnich@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mainboard/sifive/hifive-unmatched/Kconfig.name b/src/mainboard/sifive/hifive-unmatched/Kconfig.name
new file mode 100644
index 0000000000..bbba82c4cb
--- /dev/null
+++ b/src/mainboard/sifive/hifive-unmatched/Kconfig.name
@@ -0,0 +1,2 @@
+config BOARD_SIFIVE_HIFIVE_UNMATCHED
+	bool "HiFive Unmatched"