zynq7000: add SD card storage driver

_targets/Makefile.armv7a9-zynq7000

@@ -9,4 +9,4 @@
 DEFAULT_COMPONENTS := zynq7000-uart uart16550 zynq7000-pwm zynq7000-xgpio zynq7000-spi zynq7000-xspi zynq7000-gpio
 DEFAULT_COMPONENTS += libflashdrv-zynq zynq7000-flash test_flashdrv libspi-msg libzynq7000-gpio-msg libzynq7000pwm
 DEFAULT_COMPONENTS += libsensors sensors
-DEFAULT_COMPONENTS += zynq7000-i2c
+DEFAULT_COMPONENTS += zynq7000-i2c zynq7000-sdcard

libmbr/Makefile

@@ -0,0 +1,10 @@
+#
+# Makefile for Phoenix-RTOS MBR library
+#
+# Copyright 2023 Phoenix Systems
+#
+
+NAME := libmbr
+LOCAL_HEADERS := libmbr.h
+
+include $(static-lib.mk)

libmbr/libmbr.h

@@ -0,0 +1,47 @@
+/*
+ * Phoenix-RTOS
+ *
+ * Master Boot Record
+ *
+ * Copyright 2017, 2020 Phoenix Systems
+ * Author: Kamil Amanowicz, Lukasz Kosinski
+ *
+ * This file is part of Phoenix-RTOS.
+ *
+ * %LICENSE%
+ */
+
+#ifndef _MBR_H_
+#define _MBR_H_
+
+#include <stdint.h>
+
+
+/* Misc definitions */
+#define MBR_MAGIC 0xaa55
+
+
+/* Partition types */
+enum {
+	PENTRY_LINUX = 0x83,     /* Any native Linux partition */
+	PENTRY_PROTECTIVE = 0xee /* Protective MBR mode for GPT partition table */
+};
+
+
+typedef struct {
+	uint8_t status;   /* Partition status */
+	uint8_t first[3]; /* First sector (CHS) */
+	uint8_t type;     /* Partition type */
+	uint8_t last[3];  /* Last sector (CHS) */
+	uint32_t start;   /* Partition start (LBA) */
+	uint32_t sectors; /* Number of sectors */
+} __attribute__((packed)) pentry_t;
+
+
+typedef struct {
+	char bca[446];    /* Bootstrap Code Area */
+	pentry_t pent[4]; /* Partition entries */
+	uint16_t magic;   /* MBR magic */
+} __attribute__((packed)) mbr_t;
+
+#endif

storage/zynq7000-sdcard/Makefile

@@ -0,0 +1,21 @@
+#
+# Phoenix-RTOS
+#
+# SD card driver
+#
+# Copyright 2023 Phoenix Systems
+# Author: Jacek Maksymowicz
+#
+
+NAME := libsdcard-zynq
+LOCAL_SRCS := sdcard.c zynq7000-sdio.c
+LOCAL_HEADERS := sdcard.h
+
+include $(static-lib.mk)
+
+NAME := zynq7000-sdcard
+LOCAL_SRCS := sdstorage_dev.c sdstorage_srv.c
+DEP_LIBS := libmbr libsdcard-zynq
+LIBS := libstorage libcache libmtd libjffs2 libext2
+
+include $(binary.mk)