The TALERT of ADT7461 should be pull back high if the temperature is within the limit...

Signed-off-by:  Maggie Li <maggie.li@amd.com>
Reviewed-by:    Joe Bao <zheng.bao@amd.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3801 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

diff --git a/src/mainboard/amd/dbm690t/mainboard.c b/src/mainboard/amd/dbm690t/mainboard.c
index 9f0c9398cf208f3c959fe279cb17cd0dc6886c64..568670f7374c75c4997ffcfb852a61e19421c991 100644 (file)
--- a/src/mainboard/amd/dbm690t/mainboard.c
+++ b/src/mainboard/amd/dbm690t/mainboard.c
@@ -28,6 +28,7 @@
 #include "chip.h"
 
 #define ADT7461_ADDRESS 0x4C
+#define ARA_ADDRESS     0x0C /* Alert Response Address */
 #define SMBUS_IO_BASE 0x1000
 
 extern int do_smbus_read_byte(u32 smbus_io_base, u32 device, u32 address);
@@ -35,6 +36,8 @@ extern int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address,
                               u8 val);
 #define ADT7461_read_byte(address) \
        do_smbus_read_byte(SMBUS_IO_BASE, ADT7461_ADDRESS, address)
+#define ARA_read_byte(address) \
+       do_smbus_read_byte(SMBUS_IO_BASE, ARA_ADDRESS, address)
 #define ADT7461_write_byte(address, val) \
        do_smbus_write_byte(SMBUS_IO_BASE, ADT7461_ADDRESS, address, val)
 
@@ -132,6 +135,7 @@ static void set_thermal_config()
        ADT7461_write_byte(0x20, 0x55); /* Local THERM limit */
 
        byte = ADT7461_read_byte(0x02); /* read status register to clear it */
+       ARA_read_byte(0x05); /* A hardware alert can only be cleared by the master sending an ARA as a read command */
        printk_info("Init adt7461 end , status 0x02 %02x\n", byte);
 
        /* sb600 settings for thermal config */