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From 6d365974c73b25976a5c5b7572af2dab13ad39d0 Mon Sep 17 00:00:00 2001
From: Sanjay R Mehta <sanju.mehta@amd.com>
Date: Tue, 27 Sep 2016 16:14:53 +0530
Subject: [PATCH 2/2] yocto amd i2c dev add calls to enable and disable IMC
from fetching BIOS code
---
drivers/i2c/i2c-dev.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 2413ec9..6a3419d 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -34,6 +34,7 @@
#include <linux/i2c-dev.h>
#include <linux/jiffies.h>
#include <linux/uaccess.h>
+#include <linux/amd_imc.h>
/*
* An i2c_dev represents an i2c_adapter ... an I2C or SMBus master, not a
@@ -510,6 +511,8 @@ static int i2cdev_open(struct inode *inode, struct file *file)
client->adapter = adap;
file->private_data = client;
+ amd_imc_enter_scratch_ram();
+
return 0;
}
@@ -521,6 +524,8 @@ static int i2cdev_release(struct inode *inode, struct file *file)
kfree(client);
file->private_data = NULL;
+ amd_imc_exit_scratch_ram();
+
return 0;
}
--
2.7.4
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