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authorAngel Pons <th3fanbus@gmail.com>2022-05-02 16:52:57 +0200
committerFelix Held <felix-coreboot@felixheld.de>2022-05-04 13:11:00 +0000
commitf0ed846cfce843965f191e56ba01b35d8c9195b0 (patch)
treead0130fc28ff0db07e7fa2a25a8b15c20116bc10 /src/arch/x86
parent33377f1b2c79cf1e6fca8c2170c4a0a5da04ec0a (diff)
arch/x86/acpi: Consolidate POST code handling
Move ASL POST code declarations into a common file to avoid redundancy. Also, provide a dummy implementation when `POST_IO` is not enabled, as the value of `CONFIG_POST_IO_PORT` can't be used. Change-Id: I891bd8754f10f16d618e76e1ab88c26164776a50 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63988 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Diffstat (limited to 'src/arch/x86')
-rw-r--r--src/arch/x86/acpi/post.asl17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/arch/x86/acpi/post.asl b/src/arch/x86/acpi/post.asl
new file mode 100644
index 0000000000..dbdc68110f
--- /dev/null
+++ b/src/arch/x86/acpi/post.asl
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#if CONFIG(POST_IO)
+
+/* POST code support, typically on port 80 */
+OperationRegion (POST, SystemIO, CONFIG_POST_IO_PORT, 1)
+Field (POST, ByteAcc, Lock, Preserve)
+{
+ DBG0, 8
+}
+
+#else
+
+/* Dummy placeholder to avoid issues */
+Name (DBG0, 0)
+
+#endif