bios/sdram: fix compilation warning

diff --git a/litex/soc/software/bios/sdram.c b/litex/soc/software/bios/sdram.c
index 0af3e4fc6a0ca2f4e41ae0c85753037ecdaae904..ecf5fe5a14121955bd0f5d2ea8e1dee16856d166 100644 (file)
--- a/litex/soc/software/bios/sdram.c
+++ b/litex/soc/software/bios/sdram.c
@@ -255,7 +255,9 @@ void sdrwloff(void)
 }
 
 static void write_delay_rst(int module) {
+#ifdef USDDRPHY
        int i;
+#endif
 
        /* sel module */
        ddrphy_dly_sel_write(1 << module);