From 67300f88cd1e950ca18c4e7bdd770ef18b8c06dd Mon Sep 17 00:00:00 2001
From: Husni Faiz <ahamedhusni73@gmail.com>
Date: Mon, 5 Sep 2022 15:23:15 +0530
Subject: drivers/smbus: add smbus console driver
This patch adds a new smbus console driver and Kconfig
options to enable the driver.
Change-Id: Ife77fb2c3e1cc77678a4972701317d50624ceb95
Signed-off-by: Husni Faiz <ahamedhusni73@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67339
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
src/drivers/smbus/Makefile.inc | 3 +++
src/drivers/smbus/i2c_smbus_console.c | 14 ++++++++++++++
2 files changed, 17 insertions(+)
create mode 100644 src/drivers/smbus/Makefile.inc
create mode 100644 src/drivers/smbus/i2c_smbus_console.c
(limited to 'src/drivers')
diff --git a/src/drivers/smbus/Makefile.inc b/src/drivers/smbus/Makefile.inc
new file mode 100644
index 0000000000..e14d59c3e3
--- /dev/null
+++ b/src/drivers/smbus/Makefile.inc
@@ -0,0 +1,3 @@
+ifeq ($(CONFIG_CONSOLE_I2C_SMBUS),y)
+all-y += i2c_smbus_console.c
+endif
diff --git a/src/drivers/smbus/i2c_smbus_console.c b/src/drivers/smbus/i2c_smbus_console.c
new file mode 100644
index 0000000000..c223028a18
--- /dev/null
+++ b/src/drivers/smbus/i2c_smbus_console.c
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/i2c_smbus.h>
+#include <device/smbus_host.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+
+void i2c_smbus_console_init(void) {}
+
+void i2c_smbus_console_tx_byte(unsigned char c)
+{
+ do_smbus_write_byte(CONFIG_FIXED_SMBUS_IO_BASE,
+ CONFIG_CONSOLE_I2C_SMBUS_SLAVE_ADDRESS,
+ CONFIG_CONSOLE_I2C_SMBUS_SLAVE_DATA_REGISTER, c);
+}
--
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