diff --git a/litex/soc/software/liblitedram/Makefile b/litex/soc/software/liblitedram/Makefile
index cfa022f8d..0f26d194b 100644
--- a/litex/soc/software/liblitedram/Makefile
+++ b/litex/soc/software/liblitedram/Makefile
@@ -1,7 +1,7 @@
 include ../include/generated/variables.mak
 include $(SOC_DIRECTORY)/software/common.mak
 
-OBJECTS = sdram.o bist.o sdram_dbg.o
+OBJECTS = sdram.o bist.o sdram_dbg.o sdram_spd.o
 
 all: liblitedram.a
 
diff --git a/litex/soc/software/liblitedram/sdram_spd.c b/litex/soc/software/liblitedram/sdram_spd.c
new file mode 100644
index 000000000..82b39b86c
--- /dev/null
+++ b/litex/soc/software/liblitedram/sdram_spd.c
@@ -0,0 +1,62 @@
+// This file is Copyright (c) 2023 Antmicro <www.antmicro.com>
+// License: BSD
+
+#include <liblitedram/sdram_spd.h>
+
+#ifdef CONFIG_HAS_I2C
+
+#if defined(SDRAM_PHY_DDR4)
+/*
+ * In DDR4, addresses 0x36 (SPA0) and 0x37 (SPA1) are used to switch between two 256 byte pages.
+ */
+static bool sdram_select_spd_page(uint8_t page) {
+	uint8_t i2c_addr;
+
+	if (page == 0) {
+		i2c_addr = 0x36;
+	} else if (page == 1) {
+		i2c_addr = 0x37;
+	} else {
+		return false;
+	}
+
+	return i2c_poll(i2c_addr);
+}
+#else
+static bool sdram_select_spd_page(uint8_t page) {
+	return true;
+}
+#endif
+
+bool sdram_read_spd(uint8_t spd, uint16_t addr, uint8_t *buf, uint16_t len, bool send_stop) {
+	uint8_t page;
+	uint16_t offset;
+	uint16_t temp_len;
+	bool temp_send_stop = false;
+
+	bool ok = true;
+
+	while (addr < SDRAM_SPD_SIZE && len > 0) {
+		page = addr / SDRAM_SPD_PAGE_SIZE;
+		ok &= sdram_select_spd_page(page);
+
+		offset = addr % SDRAM_SPD_PAGE_SIZE;
+
+		temp_len = SDRAM_SPD_PAGE_SIZE - offset;
+		if (temp_len >= len) {
+			temp_send_stop = send_stop;
+			temp_len = len;
+		}
+
+		ok &= i2c_read(SPD_RW_ADDR(spd), offset, &buf[page * SDRAM_SPD_PAGE_SIZE], len, temp_send_stop, 1);
+		len -= temp_len;
+		addr += temp_len;
+	}
+
+	return ok;
+}
+#else /* no CONFIG_HAS_I2C */
+bool sdram_read_spd(uint8_t spd, uint16_t addr, uint8_t *buf, uint16_t len, bool send_stop) {
+	return false;
+}
+#endif /* CONFIG_HAS_I2C */
diff --git a/litex/soc/software/liblitedram/sdram_spd.h b/litex/soc/software/liblitedram/sdram_spd.h
new file mode 100644
index 000000000..c95fd64bc
--- /dev/null
+++ b/litex/soc/software/liblitedram/sdram_spd.h
@@ -0,0 +1,30 @@
+// This file is Copyright (c) 2023 Antmicro <www.antmicro.com>
+// License: BSD
+
+#ifndef __SDRAM_SPD_H
+#define __SDRAM_SPD_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <libbase/i2c.h>
+#include <generated/sdram_phy.h>
+
+#define SPD_RW_PREAMBLE    0b1010
+#define SPD_RW_ADDR(a210)  ((SPD_RW_PREAMBLE << 3) | ((a210) & 0b111))
+
+#if defined(SDRAM_PHY_DDR4)
+#define SDRAM_SPD_PAGES 2
+#define SDRAM_SPD_PAGE_SIZE 256
+#elif defined(SDRAM_PHY_DDR3)
+#define SDRAM_SPD_PAGES 1
+#define SDRAM_SPD_PAGE_SIZE 256
+#else
+#define SDRAM_SPD_PAGES 1
+#define SDRAM_SPD_PAGE_SIZE 128
+#endif
+
+#define SDRAM_SPD_SIZE (SDRAM_SPD_PAGES * SDRAM_SPD_PAGE_SIZE)
+
+bool sdram_read_spd(uint8_t spd, uint16_t addr, uint8_t *buf, uint16_t len, bool send_stop);
+
+#endif /* __SDRAM_SPD_H */