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sifiveu: add new target for SiFive U-based boards

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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>
This commit is contained in:
Zoltan HERPAI
2018-12-16 11:05:58 +01:00
parent 91406797f9
commit a3469a90c4
17 changed files with 1289 additions and 0 deletions
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21
target/linux/sifiveu/base-files/etc/board.d/01_leds Normal file
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@@ -0,0 +1,21 @@
# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2022 OpenWrt.org
#
. /lib/functions/uci-defaults.sh
board_config_update
case "$(board_name)" in
sifive,hifive-unleashed-a00)
ucidef_set_led_netdev "lan" "LAN" "green:d3" "eth0"
;;
sifive,hifive-unmatched-a00)
ucidef_set_led_netdev "lan" "LAN" "green:d2" "eth0"
;;
esac
board_config_flush
exit 0

18
target/linux/sifiveu/base-files/etc/board.d/02_network Normal file
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@@ -0,0 +1,18 @@
# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2022 OpenWrt.org
#
. /lib/functions/uci-defaults.sh
board_config_update
case "$(board_name)" in
*)
ucidef_set_interface_lan 'eth0'
;;
esac
board_config_flush
exit 0

4
target/linux/sifiveu/base-files/etc/inittab Normal file
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@@ -0,0 +1,4 @@
::sysinit:/etc/init.d/rcS S boot
::shutdown:/etc/init.d/rcS K shutdown
ttySIF0::askfirst:/usr/libexec/login.sh
tty1::askfirst:/usr/libexec/login.sh