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authorYinghai Lu <yinghailu@gmail.com>2006-02-16 17:22:19 +0000
committerYinghai Lu <yinghailu@gmail.com>2006-02-16 17:22:19 +0000
commitafd34e61ace6476946f9f30af92e0f714c901013 (patch)
tree82e1e5673992e2150bb87de3f1d5b6ee955b2b36 /src/drivers/i2c/i2cmux2
parent4d5865d3d48259f43a1d78af8107d46c7a3a73f3 (diff)
downloadcoreboot-afd34e61ace6476946f9f30af92e0f714c901013.tar.xz
serverworks HT1000/HT2000, bcm5785/5780 support
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2176 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/drivers/i2c/i2cmux2')
-rw-r--r--src/drivers/i2c/i2cmux2/Config.lb2
-rw-r--r--src/drivers/i2c/i2cmux2/chip.h4
-rw-r--r--src/drivers/i2c/i2cmux2/i2cmux2.c43
3 files changed, 49 insertions, 0 deletions
diff --git a/src/drivers/i2c/i2cmux2/Config.lb b/src/drivers/i2c/i2cmux2/Config.lb
new file mode 100644
index 0000000000..a0d83bab2c
--- /dev/null
+++ b/src/drivers/i2c/i2cmux2/Config.lb
@@ -0,0 +1,2 @@
+config chip.h
+object i2cmux2.o
diff --git a/src/drivers/i2c/i2cmux2/chip.h b/src/drivers/i2c/i2cmux2/chip.h
new file mode 100644
index 0000000000..f6fd35f796
--- /dev/null
+++ b/src/drivers/i2c/i2cmux2/chip.h
@@ -0,0 +1,4 @@
+extern struct chip_operations drivers_i2c_i2cmux2_ops;
+
+struct drivers_i2c_i2cmux2_config {
+};
diff --git a/src/drivers/i2c/i2cmux2/i2cmux2.c b/src/drivers/i2c/i2cmux2/i2cmux2.c
new file mode 100644
index 0000000000..30656eafca
--- /dev/null
+++ b/src/drivers/i2c/i2cmux2/i2cmux2.c
@@ -0,0 +1,43 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/smbus.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <cpu/x86/msr.h>
+#include "chip.h"
+
+static void i2cmux2_set_link(device_t dev, unsigned int link)
+{
+ if (dev->enabled && dev->path.type == DEVICE_PATH_I2C)
+ {
+ if(ops_smbus_bus(get_pbus_smbus(dev))) {
+ smbus_send_byte(dev, link); // output value
+ }
+
+ }
+
+}
+static void i2cmux2_noop(device_t dummy)
+{
+}
+
+static struct device_operations i2cmux2_operations = {
+ .read_resources = i2cmux2_noop,
+ .set_resources = i2cmux2_noop,
+ .enable_resources = i2cmux2_noop,
+ .init = i2cmux2_noop,
+ .scan_bus = scan_static_bus,
+ .set_link = i2cmux2_set_link,
+};
+
+static void enable_dev(struct device *dev)
+{
+ if(dev->links>0)
+ dev->ops = &i2cmux2_operations;
+}
+
+struct chip_operations drivers_i2c_i2cmux2_ops = {
+ CHIP_NAME("i2cmux2")
+ .enable_dev = enable_dev,
+};