diff --git a/litex/soc/software/bios/cmds/cmd_litesdcard.c b/litex/soc/software/bios/cmds/cmd_litesdcard.c
index c95e71347..c9d0c9033 100644
--- a/litex/soc/software/bios/cmds/cmd_litesdcard.c
+++ b/litex/soc/software/bios/cmds/cmd_litesdcard.c
@@ -20,6 +20,34 @@
 define_command(sdinit, sdcard_init, "Initialize SDCard", LITESDCARD_CMDS);
 #endif
 
+/**
+ * Command "sdfreq"
+ *
+ * Set SDcard clock frequency
+ *
+ */
+#ifdef CSR_SDCORE_BASE
+static void sdfreq(int nb_params, char **params)
+{
+	unsigned int freq;
+	char *c;
+
+	if (nb_params < 1) {
+		printf("sdfreq <freq>");
+		return;
+	}
+
+	freq = strtoul(params[0], &c, 0);
+	if (*c != 0) {
+		printf("Incorrect freq");
+		return;
+	}
+
+	sdcard_set_clk_freq(freq);
+}
+
+define_command(sdfreq, sdfreq, "Set SDCard clock freq", LITESDCARD_CMDS);
+#endif
 
 /**
  * Command "sdread"
diff --git a/litex/soc/software/liblitesdcard/sdcard.c b/litex/soc/software/liblitesdcard/sdcard.c
index cf78ed9b0..e23fee862 100644
--- a/litex/soc/software/liblitesdcard/sdcard.c
+++ b/litex/soc/software/liblitesdcard/sdcard.c
@@ -96,7 +96,7 @@ static uint32_t log2(uint32_t x)
 	return r;
 }
 
-static void sdcard_set_clk_freq(uint32_t clk_freq) {
+void sdcard_set_clk_freq(uint32_t clk_freq) {
 	uint32_t divider;
 	divider = CONFIG_CLOCK_FREQUENCY/clk_freq + 1;
 	divider = (1 << log2(divider));
diff --git a/litex/soc/software/liblitesdcard/sdcard.h b/litex/soc/software/liblitesdcard/sdcard.h
index bcc2f7ccf..eb29118dc 100644
--- a/litex/soc/software/liblitesdcard/sdcard.h
+++ b/litex/soc/software/liblitesdcard/sdcard.h
@@ -60,6 +60,12 @@ int sdcard_wait_cmd_done(void);
 int sdcard_wait_data_done(void);
 int sdcard_wait_response(void);
 
+/*-----------------------------------------------------------------------*/
+/* SDCard clocker functions                                              */
+/*-----------------------------------------------------------------------*/
+
+void sdcard_set_clk_freq(uint32_t clk_freq);
+
 /*-----------------------------------------------------------------------*/
 /* SDCard commands functions                                             */
 /*-----------------------------------------------------------------------*/