[coreboot] New patch to review for coreboot: ca51d78 SIO: Winbond w83627dhg update
Kerry Sheh (shekairui@gmail.com)
gerrit at coreboot.org
Fri Jan 20 06:44:51 CET 2012
Kerry Sheh (shekairui at gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/565
-gerrit
commit ca51d783291758a292df19ed65de16558b2ec99f
Author: Kerry Sheh <shekairui at gmail.com>
Date: Fri Jan 20 13:59:55 2012 +0800
SIO: Winbond w83627dhg update
1. Stop include c file.
2. W83627dhg Pin 89, Pin 90 are multi function pins,
add support to select them to I2C function.
Change-Id: I42eaaf7d70aa48d7edf2710349b51e401526c1a6
Signed-off-by: Kerry Sheh <kerry.she at amd.com>
Signed-off-by: Kerry Sheh <shekairui at gmail.com>
---
src/superio/winbond/w83627dhg/Makefile.inc | 2 ++
src/superio/winbond/w83627dhg/early_serial.c | 25 ++++++++++++++++++++++++-
src/superio/winbond/w83627dhg/w83627dhg.h | 4 ++++
3 files changed, 30 insertions(+), 1 deletions(-)
diff --git a/src/superio/winbond/w83627dhg/Makefile.inc b/src/superio/winbond/w83627dhg/Makefile.inc
index 0b0bb8b..09df47e 100644
--- a/src/superio/winbond/w83627dhg/Makefile.inc
+++ b/src/superio/winbond/w83627dhg/Makefile.inc
@@ -2,6 +2,7 @@
## This file is part of the coreboot project.
##
## Copyright (C) 2008 Uwe Hermann <uwe at hermann-uwe.de>
+## Copyright (C) 2012 Advanced Micro Devices, Inc.
##
## 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
@@ -18,5 +19,6 @@
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
+romstage-$(CONFIG_SUPERIO_WINBOND_W83627DHG) += early_serial.c
ramstage-$(CONFIG_SUPERIO_WINBOND_W83627DHG) += superio.c
diff --git a/src/superio/winbond/w83627dhg/early_serial.c b/src/superio/winbond/w83627dhg/early_serial.c
index f530dc6..61747f2 100644
--- a/src/superio/winbond/w83627dhg/early_serial.c
+++ b/src/superio/winbond/w83627dhg/early_serial.c
@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2008 Uwe Hermann <uwe at hermann-uwe.de>
+ * Copyright (C) 2012 Advanced Micro Devices, Inc.
*
* 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
@@ -18,7 +19,9 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <arch/io.h>
#include <arch/romcc_io.h>
+#include <device/pnp_def.h>
#include <stdint.h>
#include "w83627dhg.h"
@@ -35,7 +38,7 @@ static void pnp_exit_ext_func_mode(device_t dev)
outb(0xaa, port);
}
-static void w83627dhg_enable_serial(device_t dev, u16 iobase)
+void w83627dhg_enable_serial(device_t dev, u16 iobase)
{
pnp_enter_ext_func_mode(dev);
pnp_set_logical_device(dev);
@@ -44,3 +47,23 @@ static void w83627dhg_enable_serial(device_t dev, u16 iobase)
pnp_set_enable(dev, 1);
pnp_exit_ext_func_mode(dev);
}
+
+/**
+ * Select Pin 89, Pin 90 function as I2C interface SDA, SCL.
+ * {Pin 89, Pin 90} function can be selected as {GP33, GP32}, or
+ * {RSTOUT3#, RSTOUT2#} or {SDA, SCL}
+ */
+void w83627dhg_enable_i2c(device_t dev)
+{
+ u8 val;
+
+ pnp_enter_ext_func_mode(dev);
+ pnp_set_logical_device(dev);
+
+ val = pnp_read_config(dev, 0x2A);
+ val |= 1 << 1;
+ pnp_write_config(dev, 0x2A, val);
+
+ pnp_exit_ext_func_mode(dev);
+}
+
diff --git a/src/superio/winbond/w83627dhg/w83627dhg.h b/src/superio/winbond/w83627dhg/w83627dhg.h
index 74761e9..0f1ea85 100644
--- a/src/superio/winbond/w83627dhg/w83627dhg.h
+++ b/src/superio/winbond/w83627dhg/w83627dhg.h
@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2008 Uwe Hermann <uwe at hermann-uwe.de>
+ * Copyright (C) 2012 Advanced Micro Devices, Inc.
*
* 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
@@ -51,4 +52,7 @@
/* Note: There is no GPIO1 on the W83627DHG as per datasheet. */
+void w83627dhg_enable_serial(device_t dev, u16 iobase);
+void w83627dhg_enable_i2c(device_t dev);
+
#endif
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