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-rw-r--r--src/southbridge/amd/rs690/rs690_cmn.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/southbridge/amd/rs690/rs690_cmn.c b/src/southbridge/amd/rs690/rs690_cmn.c
index b714dc87c5..d50a48547c 100644
--- a/src/southbridge/amd/rs690/rs690_cmn.c
+++ b/src/southbridge/amd/rs690/rs690_cmn.c
@@ -307,6 +307,8 @@ u8 PcieTrainPort(device_t nb_dev, device_t dev, u32 port)
*/
void rs690_set_tom(device_t nb_dev)
{
+ extern unsigned long uma_memory_start;
+
/* set TOM */
pci_write_config32(nb_dev, 0x90, uma_memory_start);
nbmc_write_index(nb_dev, 0x1e, uma_memory_start);