diff --git a/post/board/lwmon5/dspic.c b/post/board/lwmon5/dspic.c
index e8fed89ba..f1c9c153f 100644
--- a/post/board/lwmon5/dspic.c
+++ b/post/board/lwmon5/dspic.c
@@ -94,9 +94,9 @@ int dspic_post_test(int flags)
 	}
 
 	data = dspic_read(DSPIC_SYS_ERROR_REG);
-	if (data != 0) ret = 1;
 	if (data == -1) {
 		post_log("dsPIC : failed read system error\n");
+		ret = 1;
 	} else {
 		post_log("dsPIC SYS-ERROR code: 0x%04X\n", data);
 	}
diff --git a/post/board/lwmon5/fpga.c b/post/board/lwmon5/fpga.c
index 4e3f1d5cd..b87fc52c6 100644
--- a/post/board/lwmon5/fpga.c
+++ b/post/board/lwmon5/fpga.c
@@ -39,6 +39,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #define FPGA_VERSION_REG	0xC4000040
 #define FPGA_RAM_START		0xC4200000
 #define FPGA_RAM_END		0xC4203FFF
+#define FPGA_STAT		0xC400000C
 
 #define FPGA_PWM_CTRL_REG	0xC4000020
 #define FPGA_PWM_TV_REG		0xC4000024
@@ -93,6 +94,9 @@ int fpga_post_test(int flags)
 	post_log("FPGA : version %u.%u\n",
 		(version >> 8) & 0xFF, version & 0xFF);
 
+	/* Enable write to FPGA RAM */
+	out_be32((void *)FPGA_STAT, in_be32((void *)FPGA_STAT) | 0x1000);
+
 	read_value = get_ram_size((void *)CFG_FPGA_BASE_1, 0x4000);
 	post_log("FPGA RAM size: %d bytes\n", read_value);
 
diff --git a/post/board/lwmon5/gdc.c b/post/board/lwmon5/gdc.c
index 76e5dd62e..0e4f0fd33 100644
--- a/post/board/lwmon5/gdc.c
+++ b/post/board/lwmon5/gdc.c
@@ -35,7 +35,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define GDC_SCRATCH_REG 0xC1FF8044
+#define GDC_SCRATCH_REG 0xC1FF8008
 #define GDC_VERSION_REG 0xC1FF8084
 #define GDC_RAM_START   0xC0000000
 #define GDC_RAM_END     0xC2000000