[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/platform/armemu/blkdev.c b/src/bsp/lk/platform/armemu/blkdev.c
new file mode 100644
index 0000000..f9b2b99
--- /dev/null
+++ b/src/bsp/lk/platform/armemu/blkdev.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2010 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <err.h>
+#include <debug.h>
+#include <trace.h>
+#include <platform.h>
+#include "platform_p.h"
+#include <platform/armemu.h>
+#include <lib/bio.h>
+#include <reg.h>
+
+static bdev_t dev;
+
+static uint64_t get_blkdev_len(void)
+{
+ return *REG64(BDEV_LEN);
+}
+
+ssize_t read_block(struct bdev *dev, void *buf, bnum_t block, uint count)
+{
+ /* assume args have been validated by layer above */
+ *REG32(BDEV_CMD_ADDR) = (uint32_t)buf;
+ *REG64(BDEV_CMD_OFF) = (uint64_t)((uint64_t)block * dev->block_size);
+ *REG32(BDEV_CMD_LEN) = count * dev->block_size;
+
+ *REG32(BDEV_CMD) = BDEV_CMD_READ;
+
+ uint32_t err = *REG32(BDEV_CMD) & BDEV_CMD_ERRMASK;
+ if (err == BDEV_CMD_ERR_NONE)
+ return count * dev->block_size;
+ else
+ return ERR_IO;
+}
+
+ssize_t write_block(struct bdev *dev, const void *buf, bnum_t block, uint count)
+{
+ /* assume args have been validated by layer above */
+ *REG32(BDEV_CMD_ADDR) = (uint32_t)buf;
+ *REG64(BDEV_CMD_OFF) = (uint64_t)((uint64_t)block * dev->block_size);
+ *REG32(BDEV_CMD_LEN) = count * dev->block_size;
+
+ *REG32(BDEV_CMD) = BDEV_CMD_WRITE;
+
+ uint32_t err = *REG32(BDEV_CMD) & BDEV_CMD_ERRMASK;
+ if (err == BDEV_CMD_ERR_NONE)
+ return count * dev->block_size;
+ else
+ return ERR_IO;
+}
+
+void platform_init_blkdev(void)
+{
+ if ((*REG32(SYSINFO_FEATURES) & SYSINFO_FEATURE_BLOCKDEV) == 0)
+ return; // no block device
+
+ TRACEF("device len %lld\n", get_blkdev_len());
+
+ if (get_blkdev_len() == 0)
+ return;
+
+ bio_initialize_bdev(&dev, "block0", 512, get_blkdev_len() / 512, 0, NULL,
+ BIO_FLAGS_NONE);
+
+ // fill in hooks
+ dev.read_block = &read_block;
+ dev.write_block = &write_block;
+
+ bio_register_device(&dev);
+}
+