libpayload: Parse DDR Information using coreboot tables

BUG=b:182963902,b:177917361
TEST=Validated on qualcomm sc7280 development board

Signed-off-by: Ravi Kumar Bokka <rbokka@codeaurora.org>
Change-Id: Ieca7e9fc0e1a018fcb2e9315aebee088edac858e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59193
Reviewed-by: Shelley Chen <shchen@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/commonlib/bsd/include/commonlib/bsd/mem_chip_info.h

@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+#ifndef _COMMONLIB_BSD_MEM_CHIP_INFO_H_
+#define _COMMONLIB_BSD_MEM_CHIP_INFO_H_
+
+enum mem_chip_type {
+	MEM_CHIP_DDR3 = 0x30,
+	MEM_CHIP_LPDDR3 = 0x38,
+	MEM_CHIP_DDR4 = 0x40,
+	MEM_CHIP_LPDDR4 = 0x48,
+	MEM_CHIP_LPDDR4X = 0x49,
+};
+
+struct mem_chip_info {
+	uint8_t type;  /* enum mem_chip_type */
+	uint8_t num_channels;
+	uint8_t reserved[6];
+	struct {
+		uint64_t density;
+		uint8_t io_width;
+		uint8_t manufacturer_id;
+		uint8_t revision_id[2];
+		uint8_t reserved[4];
+		uint8_t serial_id[8]; /* LPDDR5 only */
+	} channel[0];
+};
+
+#endif /* _COMMONLIB_BSD_MEM_CHIP_INFO_H_ */