doc: sifive_fu540: Fix doc styles

- make title underline the same length as the title itself
- put all URLs at the end of the doc

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>

diff --git a/docs/platform/sifive_fu540.md b/docs/platform/sifive_fu540.md
index 94eb81f..7b14001 100644 (file)
--- a/docs/platform/sifive_fu540.md
+++ b/docs/platform/sifive_fu540.md
@@ -1,5 +1,5 @@
 SiFive FU540 SoC Platform
-==========================
+=========================
 The FU540-C000 is the world’s first 4+1 64-bit RISC-V SoC from SiFive.
 The HiFive Unleashed development platform is based on FU540-C000 and capable
 of running Linux.
@@ -25,7 +25,7 @@ make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=Image FU540_ENABLED_HART_MASK=0x02
 This will let the board boot only hart1 instead of default 1-4.
 
 Building SiFive Fu540 Platform
------------------------------
+------------------------------
 
 In order to boot SMP Linux in U-Boot, Linux v5.1 (or higher) and latest
 U-Boot v2020.01 (or higher) should be used.
@@ -51,7 +51,7 @@ make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/bo
 The command-line example here assumes that U-Boot was compiled using the
 sifive_fu540_defconfig configuration and with U-Boot v2020.01 (or higher).
 
-The detailed U-Boot booting guide is avaialble at [U-Boot](https://gitlab.denx.de/u-boot/u-boot/blob/master/doc/board/sifive/fu540.rst)
+The detailed U-Boot booting guide is avaialble at [U-Boot].
 
 ```
 make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<u-boot_build_dir>/u-boot-dtb.bin
@@ -81,11 +81,10 @@ make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=/tmp/temp.bin
 ```
 
 Flashing the OpenSBI firmware binary to storage media:
------------------------------------------------------
-The first stage boot loader([FSBL](https://github.com/sifive/freedom-u540-c000-bootloader))
-expects the storage media to have a GPT partition table. It tries to look for
-a partition with following GUID to load the next stage boot loader (OpenSBI
-in this case).
+------------------------------------------------------
+The first stage boot loader ([FSBL]) expects the storage media to have a GPT
+partition table. It tries to look for a partition with following GUID to load
+the next stage boot loader (OpenSBI in this case).
 
 ```
 2E54B353-1271-4842-806F-E436D6AF6985
@@ -193,3 +192,6 @@ generated by QEMU, and u-boot.bin should be used as the payload image, like:
 ```
 make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<u-boot_build_dir>/u-boot.bin
 ```
+
+[U-Boot]: https://gitlab.denx.de/u-boot/u-boot/blob/master/doc/board/sifive/fu540.rst
+[FSBL]: https://github.com/sifive/freedom-u540-c000-bootloader