mainboard/biostar/am1ml: Force basic SPI read mode

This patch force AGESA to use basic SPI read mode.
Without it board hangs during spi configure if W25Q32 chip is used.

Change-Id: I3e17cd21702626be5061d2fc14adc0c22f167efb
Signed-off-by: Sergej Ivanov <getinaks@gmail.com>
Reviewed-on: https://review.coreboot.org/12580
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/mainboard/biostar/am1ml/BiosCallOuts.c b/src/mainboard/biostar/am1ml/BiosCallOuts.c
index c87f465..318d9ba 100644
--- a/src/mainboard/biostar/am1ml/BiosCallOuts.c
+++ b/src/mainboard/biostar/am1ml/BiosCallOuts.c
@@ -118,6 +118,7 @@
 		FchParams_reset->LegacyFree = IS_ENABLED(CONFIG_HUDSON_LEGACY_FREE);
 		FchParams_reset->FchReset.SataEnable = 1;
 		FchParams_reset->FchReset.IdeEnable = 0;
+		FchParams_reset->Mode = 6;
 	} else if (StdHeader->Func == AMD_INIT_ENV) {
 		FCH_DATA_BLOCK *FchParams_env = (FCH_DATA_BLOCK *)FchData;
 		printk(BIOS_DEBUG, "Fch OEM config in INIT ENV ");