diff --git a/hw/efinix_fpga/simulation/src/verilog-sd-emulator b/hw/efinix_fpga/simulation/src/verilog-sd-emulator
index 2ae36c9..016ca4b 160000
--- a/hw/efinix_fpga/simulation/src/verilog-sd-emulator
+++ b/hw/efinix_fpga/simulation/src/verilog-sd-emulator
@@ -1 +1 @@
-Subproject commit 2ae36c9dcd99c02b864709134d931c431603f9a0
+Subproject commit 016ca4bce23a3c9772e466279c6e1a2440af72b0
diff --git a/sw/bios/devices/sd_card.c b/sw/bios/devices/sd_card.c
index 0387b50..6be2cc3 100644
--- a/sw/bios/devices/sd_card.c
+++ b/sw/bios/devices/sd_card.c
@@ -64,7 +64,9 @@ uint8_t SD_init()
     }
     while(res[0] != SD_READY);
 
+#ifndef RTL_SIM
     for (i = 0; i < 1000; i++);
+#endif
 
     SD_readOCR(res);