boards: convert SiFive HiFive1 to Zephyr HWMv2

This commit converts the SiFive HiFive1 board (`hifive1` target) to the
Zephyr Hardware Model v2.

Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>

boards/boards_legacy/riscv/hifive1/Kconfig.board

@@ -1,5 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_HIFIVE1
-	bool "HiFive1 target"
-	depends on SOC_SIFIVE_FREEDOM_E340

boards/sifive/hifive1/Kconfig.defconfig

@@ -1,11 +1,8 @@
 # SPDX-License-Identifier: Apache-2.0
 
-if BOARD_HIFIVE1
-
-config BOARD
-	default "hifive1"
+if BOARD_HIFIVE1_FE310
 
 config SYS_CLOCK_TICKS_PER_SEC
 	default 128
 
-endif
+endif # BOARD_HIFIVE1_FE310

boards/sifive/hifive1/Kconfig.hifive1

@@ -0,0 +1,5 @@
+# Copyright (c) 2024 Antmicro <www.antmicro.com>
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_HIFIVE1
+	select SOC_SIFIVE_FREEDOM_FE310

boards/sifive/hifive1/board.yml

@@ -0,0 +1,11 @@
+board:
+  name: hifive1
+  vendor: sifive
+  socs:
+    - name: fe310
+  revision:
+    format: letter
+    default: "A"
+    revisions:
+      - name: "A"
+      - name: "B"

boards/sifive/hifive1/doc/index.rst

@@ -11,10 +11,12 @@ an FE310 RISC-V SoC.
 More information can be found on
 `SiFive's website <https://www.sifive.com/boards/hifive1>`_.
 
-.. image:: img/hifive1.jpg
+.. figure:: img/hifive1.jpg
    :align: center
    :alt: SiFive HiFive1 board
 
+   SiFive HiFive1 board (image courtesy of SiFive)
+
 Programming and debugging
 *************************
 

boards/sifive/hifive1/hifive1_defconfig

@@ -1,13 +1,9 @@
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_SIFIVE_FREEDOM_E300=y
-CONFIG_SOC_SIFIVE_FREEDOM_E340=y
-CONFIG_BOARD_HIFIVE1=y
 CONFIG_CONSOLE=y
 CONFIG_SERIAL=y
 CONFIG_UART_SIFIVE_PORT_0=y
 CONFIG_UART_CONSOLE=y
 CONFIG_PINCTRL=y
 CONFIG_GPIO=y
-CONFIG_QEMU_ICOUNT_SHIFT=6
 CONFIG_BUILD_OUTPUT_HEX=y

boards/sifive/index.rst

@@ -0,0 +1,10 @@
+.. _boards-sifive:
+
+SiFive
+######
+
+.. toctree::
+   :maxdepth: 1
+   :glob:
+
+   **/*