diff --git a/src/target/sfdp.h b/src/target/sfdp.h
new file mode 100644
index 0000000..4ad0caa
--- /dev/null
+++ b/src/target/sfdp.h
@@ -0,0 +1,54 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2022 1BitSquared <info@1bitsquared.com>
+ * Written by Rachel Mant <git@dragonmux.network>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SFDP_H
+#define SFDP_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include "target.h"
+
+typedef struct spi_parameters {
+	uint32_t page_size;
+	uint32_t sector_size;
+	size_t capacity;
+	uint8_t sector_erase_opcode;
+} spi_parameters_s;
+
+typedef void (*read_sfdp_func)(target *t, uint32_t address, void *buffer, size_t length);
+
+bool sfdp_read_parameters(target *t, spi_parameters_s *params, read_sfdp_func sfdp_read);
+
+#endif /*SFDP_H*/
diff --git a/src/target/sfdp_internal.h b/src/target/sfdp_internal.h
new file mode 100644
index 0000000..80cfe74
--- /dev/null
+++ b/src/target/sfdp_internal.h
@@ -0,0 +1,68 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2022 1BitSquared <info@1bitsquared.com>
+ * Written by Rachel Mant <git@dragonmux.network>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SFDP_INTERNAL_H
+#define SFDP_INTERNAL_H
+
+#include "sfdp.h"
+
+#define SFDP_HEADER_ADDRESS       0U
+#define SFDP_TABLE_HEADER_ADDRESS sizeof(sfdp_header_s)
+
+#define SFDP_MAGIC                     "SFDP"
+#define SFDP_BASIC_SPI_PARAMETER_TABLE 0xFF00U
+
+#define SFDP_ACCESS_PROTOCOL_LEGACY_JESD216B 0xFFU
+
+#define SFDP_JEDEC_PARAMETER_ID(header) (((header).jedec_parameter_id_high << 8U) | (header).jedec_parameter_id_low)
+#define SFDP_TABLE_ADDRESS(header) \
+	(((header).table_address[2] << 16U) | ((header).table_address[1] << 8U) | (header).table_address[0])
+
+typedef struct sfdp_header {
+	char magic[4];
+	uint8_t version_minor;
+	uint8_t version_major;
+	uint8_t parameter_headers_count;
+	uint8_t access_protocol;
+} sfdp_header_s;
+
+typedef struct sfdp_parameter_table_header {
+	uint8_t jedec_parameter_id_low;
+	uint8_t version_minor;
+	uint8_t version_major;
+	uint8_t table_length_in_u32s;
+	uint8_t table_address[3];
+	uint8_t jedec_parameter_id_high;
+} sfdp_parameter_table_header_s;
+
+#endif /*SFDP_INTERNAL_H*/