[coreboot-gerrit] Change in coreboot[master]: superio/common/conf_mode.c: Add enter function using twice 0xA5

[Anonymous Coward (Code Review)]

fhendriks at eltan.com has uploaded this change for review. ( https://review.coreboot.org/23135


Change subject: superio/common/conf_mode.c: Add enter function using twice 0xA5
......................................................................

superio/common/conf_mode.c: Add enter function using twice 0xA5

Super I/O requires writing twice 0xA5 to enter config mode.

Change-Id: I58fce31f0a2483e61e9d31f38ab5a059b8cf4f83
Signed-off-by: Frans Hendriks <fhendriks at eltan.com>
---
M src/include/superio/conf_mode.h
M src/superio/common/conf_mode.c
2 files changed, 15 insertions(+), 0 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/23135/1

diff --git a/src/include/superio/conf_mode.h b/src/include/superio/conf_mode.h
index ecc365d..468ef80 100644
--- a/src/include/superio/conf_mode.h
+++ b/src/include/superio/conf_mode.h
@@ -2,6 +2,7 @@
  * This file is part of the coreboot project.
  *
  * Copyright (C) 2013 Nico Huber <nico.h at gmx.de>
+ * Copyright (C) 2018 Eltan B.V.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -25,6 +26,7 @@
 void pnp_enter_conf_mode_7777(struct device *dev);
 void pnp_enter_conf_mode_8787(struct device *dev);
 void pnp_enter_conf_mode_a0a0(struct device *dev);
+void pnp_enter_conf_mode_a5a5(struct device *dev);
 void pnp_exit_conf_mode_aa(struct device *dev);
 void pnp_enter_conf_mode_870155aa(struct device *dev);
 void pnp_exit_conf_mode_0202(struct device *dev);
@@ -34,6 +36,7 @@
 extern const struct pnp_mode_ops pnp_conf_mode_7777_aa;
 extern const struct pnp_mode_ops pnp_conf_mode_8787_aa;
 extern const struct pnp_mode_ops pnp_conf_mode_a0a0_aa;
+extern const struct pnp_mode_ops pnp_conf_mode_a5a5_aa;
 extern const struct pnp_mode_ops pnp_conf_mode_870155_aa;
 
 #endif /* DEVICE_PNP_CONF_MODE_H */
diff --git a/src/superio/common/conf_mode.c b/src/superio/common/conf_mode.c
index cbe1a9e..6b4f277 100644
--- a/src/superio/common/conf_mode.c
+++ b/src/superio/common/conf_mode.c
@@ -2,6 +2,7 @@
  * This file is part of the coreboot project.
  *
  * Copyright (C) 2013 Nico Huber <nico.h at gmx.de>
+ * Copyright (C) 2018 Eltan B.V.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -48,6 +49,12 @@
 	outb(0xa0, dev->path.pnp.port);
 }
 
+void pnp_enter_conf_mode_a5a5(struct device *dev)
+{
+	outb(0xa5, dev->path.pnp.port);
+	outb(0xa5, dev->path.pnp.port);
+}
+
 void pnp_exit_conf_mode_aa(struct device *dev)
 {
 	outb(0xaa, dev->path.pnp.port);
@@ -97,6 +104,11 @@
 	.exit_conf_mode  = pnp_exit_conf_mode_aa,
 };
 
+const struct pnp_mode_ops pnp_conf_mode_a5a5_aa = {
+	.enter_conf_mode = pnp_enter_conf_mode_a5a5,
+	.exit_conf_mode  = pnp_exit_conf_mode_aa,
+};
+
 const struct pnp_mode_ops pnp_conf_mode_870155_aa = {
 	.enter_conf_mode = pnp_enter_conf_mode_870155aa,
 	.exit_conf_mode  = pnp_exit_conf_mode_0202,

-- 
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I58fce31f0a2483e61e9d31f38ab5a059b8cf4f83
Gerrit-Change-Number: 23135
Gerrit-PatchSet: 1
Gerrit-Owner: fhendriks at eltan.com
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