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path: root/src/southbridge/broadcom/bcm5785/bcm5785_enable_rom.c
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Diffstat (limited to 'src/southbridge/broadcom/bcm5785/bcm5785_enable_rom.c')
-rw-r--r--src/southbridge/broadcom/bcm5785/bcm5785_enable_rom.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/southbridge/broadcom/bcm5785/bcm5785_enable_rom.c b/src/southbridge/broadcom/bcm5785/bcm5785_enable_rom.c
new file mode 100644
index 0000000000..7d484d87c2
--- /dev/null
+++ b/src/southbridge/broadcom/bcm5785/bcm5785_enable_rom.c
@@ -0,0 +1,14 @@
+static void bcm5785_enable_rom(void)
+{
+ unsigned char byte;
+ device_t addr;
+
+ /* Enable 4MB rom access at 0xFFC00000 - 0xFFFFFFFF */
+ /* Locate the BCM 5785 SB PCI Main */
+ addr = pci_locate_device(PCI_ID(0x1166, 0x0205), 0); // 0x0201?
+
+ /* Set the 4MB enable bit bit */
+ byte = pci_read_config8(addr, 0x41);
+ byte |= 0x0e;
+ pci_write_config8(addr, 0x41, byte);
+}