--- /dev/null
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+
+#define ROM_API_TABLE_BASE_ADDR_LEGACY 0x180
+#define ROM_VERSION_OFFSET 0x80
+#define ROM_API_HWCNFG_SETUP_OFFSET 0x08
+
+plugin_start:
+
+ push {r0-r4, lr}
+
+ imx7_ddr_setting
+ imx7_clock_gating
+ imx7_qos_setting
+
+/*
+ * Check if we are in USB serial download mode and immediately return to ROM
+ * Need to check USB CTRL clock firstly, then check the USBx_nASYNCLISTADDR
+ */
+ ldr r0, =0x30384680
+ ldr r1, [r0]
+ cmp r1, #0
+ beq normal_boot
+
+ ldr r0, =0x30B10158
+ ldr r1, [r0]
+ cmp r1, #0
+ beq normal_boot
+
+ pop {r0-r4, lr}
+ bx lr
+
+normal_boot:
+
+/*
+ * The following is to fill in those arguments for this ROM function
+ * pu_irom_hwcnfg_setup(void **start, size_t *bytes, const void *boot_data)
+ * This function is used to copy data from the storage media into DDR.
+ * start - Initial (possibly partial) image load address on entry.
+ * Final image load address on exit.
+ * bytes - Initial (possibly partial) image size on entry.
+ * Final image size on exit.
+ * boot_data - Initial @ref ivt Boot Data load address.
+ */
+ adr r0, boot_data2
+ adr r1, image_len2
+ adr r2, boot_data2
+
+/*
+ * check the _pu_irom_api_table for the address
+ */
+before_calling_rom___pu_irom_hwcnfg_setup:
+ ldr r3, =ROM_VERSION_OFFSET
+ ldr r4, [r3]
+ ldr r3, =ROM_API_TABLE_BASE_ADDR_LEGACY
+ ldr r4, [r3, #ROM_API_HWCNFG_SETUP_OFFSET]
+ blx r4
+after_calling_rom___pu_irom_hwcnfg_setup:
+
+
+/* To return to ROM from plugin, we need to fill in these argument.
+ * Here is what need to do:
+ * Need to construct the paramters for this function before return to ROM:
+ * plugin_download(void **start, size_t *bytes, UINT32 *ivt_offset)
+ */
+ pop {r0-r4, lr}
+ push {r5}
+ ldr r5, boot_data2
+ str r5, [r0]
+ ldr r5, image_len2
+ str r5, [r1]
+ ldr r5, second_ivt_offset
+ str r5, [r2]
+ mov r0, #1
+ pop {r5}
+
+ /* return back to ROM code */
+ bx lr
+
+/* make the following data right in the end of the output*/
+.ltorg
+
+#define FLASH_OFFSET 0x400
+
+/*
+ * second_ivt_offset is the offset from the "second_ivt_header" to
+ * "image_copy_start", which involves FLASH_OFFSET, plus the first
+ * ivt_header, the plugin code size itself recorded by "ivt2_header"
+ */
+
+second_ivt_offset: .long (ivt2_header + 0x2C + FLASH_OFFSET)
+
+/*
+ * The following is the second IVT header plus the second boot data
+ */
+ivt2_header: .long 0x0
+app2_code_jump_v: .long 0x0
+reserv3: .long 0x0
+dcd2_ptr: .long 0x0
+boot_data2_ptr: .long 0x0
+self_ptr2: .long 0x0
+app_code_csf2: .long 0x0
+reserv4: .long 0x0
+boot_data2: .long 0x0
+image_len2: .long 0x0
+plugin2: .long 0x0