git: 60c96dbf20da - main - arm64: add a std.ec2 config

The branch main has been updated by kevans:

URL: https://cgit.FreeBSD.org/src/commit/?id=60c96dbf20da7014c014e19c47b57c30b338bfe0

commit 60c96dbf20da7014c014e19c47b57c30b338bfe0
Author:     Kyle Evans <kevans@FreeBSD.org>
AuthorDate: 2022-09-28 20:24:53 +0000
Commit:     Kyle Evans <kevans@FreeBSD.org>
CommitDate: 2022-10-27 15:39:55 +0000

    arm64: add a std.ec2 config
    
    Mostly to document basic harware present on the platform; knowing that
    Graviton exposes an ns8250 uart alone is quite helpful.
    
    Reviewed by:    andrew, imp, manu
    Seems accurate: cperciva
    Sponsored by:   NetApp, Inc.
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D36776
---
 sys/arm64/conf/GENERIC |  1 +
 sys/arm64/conf/std.ec2 | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/sys/arm64/conf/GENERIC b/sys/arm64/conf/GENERIC
index 60772893cdbb..c53132b0c225 100644
--- a/sys/arm64/conf/GENERIC
+++ b/sys/arm64/conf/GENERIC
@@ -31,6 +31,7 @@ include		"std.amd"
 include		"std.arm"
 include		"std.broadcom"
 include		"std.cavium"
+include		"std.ec2"
 include		"std.hyperv"
 include		"std.hisilicon"
 include		"std.imx"
diff --git a/sys/arm64/conf/std.ec2 b/sys/arm64/conf/std.ec2
new file mode 100644
index 000000000000..da80c3b5f4b6
--- /dev/null
+++ b/sys/arm64/conf/std.ec2
@@ -0,0 +1,15 @@
+#
+# EC2 support (Graviton, Graviton 2)
+#
+
+# Serial (COM) ports
+device		uart_ns8250
+
+# Ethernet NIC, typically loaded as a module instead
+#device		ena
+
+# Options typically present in AWS /boot/loader.conf that we don't want to
+# enable for GENERIC
+#envvar		hw.broken_txfifo=1
+
+device		acpi