openwrt/target/linux/sifiveu/image/gen_sifiveu_sdcard_img.sh
Zoltan HERPAI a3469a90c4 sifiveu: add new target for SiFive U-based boards
RISC-V is a new CPU architecture aimed to be fully free and open. This
target will add support for it, based on 5.15.

Supports running on:
 - HiFive Unleashed - FU540, first generation
 - HiFive Unmatched - FU740, current latest generation, PCIe

SD-card images are generated, where the partitions are required to have
specific type codes. As it is commonplace nowadays, OpenSBI is used as the
first stage, with U-boot following as the proper bootloader.

Specifications:

HiFive Unleashed:
 - CPU: SiFive FU540 quad-core RISC-V (U54, RV64IMAFDC or RV64GC)
 - Memory: 8Gb
 - Ethernet: 1x 10/100/1000
 - Console: via microUSB

HiFive Unmatched:
 - CPU: SiFive FU740 quad-core RISC-V (U74, RV64IMAFDCB or RV64GCB)
 - Memory: 16Gb
 - Ethernet: 1x 10/100/1000
 - USB: 4x USB 3.2
 - PCIe:  - 1x PCIe Gen3 x8
          - 1x M.2 key M (PCIe x4)
          - 1x M.2 Key E (PCIe x1 / USB2.0)
 - Console: via microUSB

Installation:
Standard SD-card installation via dd-ing the generated image to
an SD-card of at least 256Mb.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
2023-05-28 13:19:11 +02:00

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#!/usr/bin/env bash
# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2022 OpenWrt.org
#
set -ex
[ $# -eq 7 ] || {
echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size> <u-boot ITB image> <u-boot SPL>"
exit 1
}
OUTPUT="$1"
BOOTFS="$2"
ROOTFS="$3"
BOOTFSSIZE="$4"
ROOTFSSIZE="$5"
UBOOT="$6"
UBOOT_SPL="$7"
set $(ptgen -o $OUTPUT -v -g -T sifiveu_spl -N loader1 -p 1024 -T sifiveu_uboot -N loader2 -p 4096 -t ef -N boot -p ${BOOTFSSIZE}M -N rootfs -p ${ROOTFSSIZE}M)
ROOTFSOFFSET=$(($7 / 512))
dd bs=512 if="$UBOOT_SPL" of="$OUTPUT" seek=34 conv=notrunc
dd bs=512 if="$UBOOT" of="$OUTPUT" seek=2082 conv=notrunc
dd bs=512 if="$BOOTFS" of="$OUTPUT" seek=10274 conv=notrunc
dd bs=512 if="$ROOTFS" of="$OUTPUT" seek=${ROOTFSOFFSET} conv=notrunc