MLK-12527-2 android: Add FSL android fastboot support

Integrate the FSL android fastboot features into community's fastboot.

1. Use USB gadget g_dnl driver
2. Integrate the FSL SD/SATA/NAND flash operations, since the GPT and
   EFI partitions are not support by i.MX.
3. Add FDT support to community's android image.
4. Add a new boot command "boota" for android image boot. The boota
   implements to load ramdisk and fdt to their loading addresses
   specified in boot.img header, while bootm won't do it for android image.
5. Support the authentication of boot.img at the "load_addr" for
   both SD and NAND.
6. We use new configuration CONFIG_FSL_FASTBOOT for Freescale's fastboot
   with relevant header file "fsl_fastboot.h". While disabling the
   configuration, the community fastboot is used.
7. Overwrite the cmdline in boot.img by using bootargs saved in local environment.
8. Add recovery and reboot-bootloader support.

Signed-off-by: Ye Li <ye.li@nxp.com>

3 files changed, 196 insertions, 0 deletions

diff --git a/include/fsl_fastboot.h b/include/fsl_fastboot.h
new file mode 100644
index 0000000..078c873
--- /dev/null
+++ b/include/fsl_fastboot.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2010-2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef FSL_FASTBOOT_H
+#define FSL_FASTBOOT_H
+
+#define FASTBOOT_PTENTRY_FLAGS_REPEAT(n)              (n & 0x0f)
+#define FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK            0x0000000F
+
+/* Writes happen a block at a time.
+   If the write fails, go to next block
+   NEXT_GOOD_BLOCK and CONTIGOUS_BLOCK can not both be set */
+#define FASTBOOT_PTENTRY_FLAGS_WRITE_NEXT_GOOD_BLOCK  0x00000010
+
+/* Find a contiguous block big enough for a the whole file
+   NEXT_GOOD_BLOCK and CONTIGOUS_BLOCK can not both be set */
+#define FASTBOOT_PTENTRY_FLAGS_WRITE_CONTIGUOUS_BLOCK 0x00000020
+
+/* Write the file with write.i */
+#define FASTBOOT_PTENTRY_FLAGS_WRITE_I                0x00000100
+
+/* Write the file with write.trimffs */
+#define FASTBOOT_PTENTRY_FLAGS_WRITE_TRIMFFS          0x00000200
+
+/* Write the file as a series of variable/value pairs
+   using the setenv and saveenv commands */
+#define FASTBOOT_PTENTRY_FLAGS_WRITE_ENV              0x00000400
+
+#define FASTBOOT_MMC_BOOT_PARTITION_ID  1
+#define FASTBOOT_MMC_USER_PARTITION_ID  0
+#define FASTBOOT_MMC_NONE_PARTITION_ID -1
+
+#define FASTBOOT_PARTITION_BOOT "boot"
+#define FASTBOOT_PARTITION_RECOVERY "recovery"
+#define FASTBOOT_PARTITION_SYSTEM "system"
+#define FASTBOOT_PARTITION_BOOTLOADER "bootloader"
+#define FASTBOOT_PARTITION_DATA "data"
+
+enum {
+    DEV_SATA,
+    DEV_MMC,
+    DEV_NAND
+};
+
+struct cmd_fastboot_interface {
+	/* This function is called when a buffer has been
+	   recieved from the client app.
+	   The buffer is a supplied by the board layer and must be unmodified.
+	   The buffer_size is how much data is passed in.
+	   Returns 0 on success
+	   Returns 1 on failure
+
+	   Set by cmd_fastboot	*/
+	int (*rx_handler)(const unsigned char *buffer,
+			  unsigned int buffer_size);
+
+	/* This function is called when an exception has
+	   occurred in the device code and the state
+	   off fastboot needs to be reset
+
+	   Set by cmd_fastboot */
+	void (*reset_handler)(void);
+
+	/* A getvar string for the product name
+	   It can have a maximum of 60 characters
+
+	   Set by board	*/
+	char *product_name;
+
+	/* A getvar string for the serial number
+	   It can have a maximum of 60 characters
+
+	   Set by board */
+	char *serial_no;
+
+	/* Nand block size
+	   Supports the write option WRITE_NEXT_GOOD_BLOCK
+
+	   Set by board */
+	unsigned int nand_block_size;
+
+	/* Nand oob size
+	   Set by board */
+	unsigned int nand_oob_size;
+
+	/* Transfer buffer, for handling flash updates
+	   Should be multiple of the nand_block_size
+	   Care should be take so it does not overrun bootloader memory
+	   Controlled by the configure variable CFG_FASTBOOT_TRANSFER_BUFFER
+
+	   Set by board */
+	unsigned char *transfer_buffer;
+
+	/* How big is the transfer buffer
+	   Controlled by the configure variable
+	   CFG_FASTBOOT_TRANSFER_BUFFER_SIZE
+
+	   Set by board	*/
+	unsigned int transfer_buffer_size;
+
+};
+
+/* flash partitions are defined in terms of blocks
+** (flash erase units)
+*/
+struct fastboot_ptentry {
+	/* The logical name for this partition, null terminated */
+	char name[16];
+	/* The start wrt the nand part, must be multiple of nand block size */
+	unsigned int start;
+	/* The length of the partition, must be multiple of nand block size */
+	unsigned int length;
+	/* Controls the details of how operations are done on the partition
+	   See the FASTBOOT_PTENTRY_FLAGS_*'s defined below */
+	unsigned int flags;
+	/* partition id: 0 - normal partition; 1 - boot partition */
+	unsigned int partition_id;
+	/* partition number in block device */
+	unsigned int partition_index;
+};
+
+struct fastboot_device_info {
+	unsigned char type;
+	unsigned char dev_id;
+};
+
+extern struct fastboot_device_info fastboot_devinfo;
+
+/* Prepare the fastboot environments,
+  * should be executed before "fastboot" cmd
+  */
+void fastboot_setup(void);
+
+
+/* The Android-style flash handling */
+
+/* tools to populate and query the partition table */
+void fastboot_flash_add_ptn(struct fastboot_ptentry *ptn);
+struct fastboot_ptentry *fastboot_flash_find_ptn(const char *name);
+struct fastboot_ptentry *fastboot_flash_get_ptn(unsigned n);
+unsigned int fastboot_flash_get_ptn_count(void);
+void fastboot_flash_dump_ptn(void);
+
+
+/* Check the board special boot mode reboot to fastboot mode. */
+int fastboot_check_and_clean_flag(void);
+
+/* Set the flag which reboot to fastboot mode*/
+void fastboot_enable_flag(void);
+
+/*check if fastboot mode is requested by user*/
+void check_fastboot(void);
+
+/*Setup board-relative fastboot environment */
+void board_fastboot_setup(void);
+
+#ifdef CONFIG_FASTBOOT_STORAGE_NAND
+/*Save parameters for NAND storage partitions */
+void save_parts_values(struct fastboot_ptentry *ptn,
+	unsigned int offset, unsigned int size);
+
+/* Checks parameters for NAND storage partitions
+  * Return 1 if the parameter is not set
+  * Return 0 if the parameter has been set
+  */
+int check_parts_values(struct fastboot_ptentry *ptn);
+#endif /*CONFIG_FASTBOOT_STORAGE_NAND*/
+
+#endif /* FSL_FASTBOOT_H */
diff --git a/include/image.h b/include/image.h
index 518a4f5..44574a2 100644
--- a/include/image.h
+++ b/include/image.h
@@ -4,6 +4,8 @@
  * (C) Copyright 2000-2005
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
+ * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
+ *
  * SPDX-License-Identifier:	GPL-2.0+
  ********************************************************************
  * NOTE: This header file defines an interface to U-Boot. Including
@@ -1122,6 +1124,8 @@ int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify,
 			     ulong *os_data, ulong *os_len);
 int android_image_get_ramdisk(const struct andr_img_hdr *hdr,
 			      ulong *rd_data, ulong *rd_len);
+int android_image_get_fdt(const struct andr_img_hdr *hdr,
+			      ulong *fdt_data, ulong *fdt_len);
 ulong android_image_get_end(const struct andr_img_hdr *hdr);
 ulong android_image_get_kload(const struct andr_img_hdr *hdr);
 
diff --git a/include/recovery.h b/include/recovery.h
new file mode 100644
index 0000000..4c368c6
--- /dev/null
+++ b/include/recovery.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2010-2016 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __RECOVERY_H_
+#define __RECOVERY_H_
+
+struct reco_envs {
+	char *cmd;
+	char *args;
+};
+
+void check_recovery_mode(void);
+int recovery_check_and_clean_flag(void);
+int check_recovery_cmd_file(void);
+void board_recovery_setup(void);
+
+#endif