[mdm9x15]: Initial support for mdm9x15 target

Change-Id: I0d7f2899cacacd81594c09d688bfd0e5aa0c43b6
diff --git a/target/mdm9615/init.c b/target/mdm9615/init.c
new file mode 100644
index 0000000..ded6aec
--- /dev/null
+++ b/target/mdm9615/init.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright (c) 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *	notice, this list of conditions and the following disclaimer.
+ *  * 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.
+ *  * Neither the name of Google, Inc. 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 OWNER 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.
+ */
+
+#include <reg.h>
+#include <debug.h>
+#include <lib/ptable.h>
+#include <dev/flash.h>
+#include <smem.h>
+#include <gsbi.h>
+#include <platform/iomap.h>
+#include <platform.h>
+
+#define MDM9X15_CDP	3675
+#define MDM9X15_MTP	3681
+#define LINUX_MACHTYPE  MDM9X15_CDP
+
+//TODO: Update with partitions needed
+#define VARIABLE_LENGTH		0x10101010
+#define DIFF_START_ADDR		0xF0F0F0F0
+#define NUM_PAGES_PER_BLOCK	0x40
+
+static struct ptable flash_ptable;
+unsigned hw_platform = 0;
+unsigned target_msm_id = 0;
+
+static const uint8_t uart_gsbi_id = GSBI_ID_4;
+
+/* for these partitions, start will be offset by either what we get from
+ * smem, or from the above offset if smem is not useful. Also, we should
+ * probably have smem_ptable code populate our flash_ptable.
+ *
+ * When smem provides us with a full partition table, we can get rid of
+ * this altogether.
+ *
+ */
+static struct ptentry board_part_list_default[] = {
+	{
+		.start = 0,
+		.length = 10 /* In MB */,
+		.name = "boot",
+	},
+};
+static int num_parts = sizeof(board_part_list_default)/sizeof(struct ptentry);
+
+void smem_ptable_init(void);
+unsigned smem_get_apps_flash_start(void);
+extern void reboot(unsigned reboot_reason);
+
+void target_init(void)
+{
+	unsigned offset;
+	struct flash_info *flash_info;
+	struct ptentry *board_part_list;
+	unsigned total_num_of_blocks;
+	unsigned next_ptr_start_adr = 0;
+	unsigned blocks_per_1MB = 8; /* Default value of 2k page size on 256MB flash drive*/
+	int i;
+
+	dprintf(INFO, "target_init()\n");
+	ptable_init(&flash_ptable);
+	smem_ptable_init();
+
+	flash_init();
+	flash_info = flash_get_info();
+	ASSERT(flash_info);
+
+	offset = smem_get_apps_flash_start();
+	if (offset == 0xffffffff)
+			while(1);
+
+	total_num_of_blocks = flash_info->num_blocks;
+	blocks_per_1MB = (1 << 20) / (flash_info->block_size);
+
+	//TODO: Remove this if no need for other board types
+	board_part_list = board_part_list_default;
+
+	for (i = 0; i < num_parts; i++) {
+		struct ptentry *ptn = &board_part_list[i];
+		unsigned len = ((ptn->length) * blocks_per_1MB);
+
+		if(ptn->start != 0)
+				ASSERT(ptn->start == DIFF_START_ADDR);
+
+		ptn->start = next_ptr_start_adr;
+
+		if(ptn->length == VARIABLE_LENGTH)
+		{
+			unsigned length_for_prt = 0;
+			unsigned j;
+			for (j = i+1; j < num_parts; j++)
+			{
+					struct ptentry *temp_ptn = &board_part_list[j];
+					ASSERT(temp_ptn->length != VARIABLE_LENGTH);
+					length_for_prt += ((temp_ptn->length) * blocks_per_1MB);
+			}
+				len = (total_num_of_blocks - 1) - (offset + ptn->start + length_for_prt);
+			ASSERT(len >= 0);
+		}
+		next_ptr_start_adr = ptn->start + len;
+		ptable_add(&flash_ptable, ptn->name, offset + ptn->start,
+			   len, ptn->flags, TYPE_APPS_PARTITION, PERM_WRITEABLE);
+	}
+
+	smem_add_modem_partitions(&flash_ptable);
+
+	ptable_dump(&flash_ptable);
+	flash_set_ptable(&flash_ptable);
+}
+
+void board_info(void)
+{
+	struct smem_board_info_v4 board_info_v4;
+	unsigned int board_info_len = 0;
+	unsigned smem_status;
+	unsigned format = 0;
+	unsigned id = 0;
+
+	if (hw_platform && target_msm_id)
+		return;
+
+	hw_platform = MDM9X15_CDP;
+	target_msm_id = MDM9600;
+
+	smem_status = smem_read_alloc_entry_offset(SMEM_BOARD_INFO_LOCATION,
+						&format, sizeof(format), 0);
+	if(!smem_status)
+	{
+		if(format == 4)
+		{
+			board_info_len = sizeof(board_info_v4);
+			smem_status = smem_read_alloc_entry(
+						SMEM_BOARD_INFO_LOCATION,
+						&board_info_v4, board_info_len);
+			if(!smem_status)
+			{
+				id = board_info_v4.board_info_v3.hw_platform;
+				target_msm_id =
+					board_info_v4.board_info_v3.msm_id;
+			}
+		}
+	}
+	return;
+}
+
+unsigned board_machtype(void)
+{
+	board_info();
+	return hw_platform;
+}
+
+void reboot_device(unsigned reboot_reason)
+{
+	//TODO: Implement
+	return;
+}
+
+uint8_t target_uart_gsbi(void)
+{
+	return uart_gsbi_id;
+}
+
+uint32_t usb_cable_status(void) {
+	//TODO: Implement
+	uint32_t ret = 1;
+	return ret;
+}