1、需要準備的檔案uImage，devicetree，BOOT.BIN（包含了fsbl以及uboot），uramdisk.image.gz，FPGA程式design.bin(注意不是bit)

2、其中裝置樹中進行的更改為在zynq-zed.dts中新增如下節點，其中compatible = "s25fl256s1";這是因為zedboard用的flash型號為S25FL256SAGMFI00，可以在原理圖中看到，而在st_spi_fsm.c中有s25fl256s0和s25fl256s1兩個選擇，兩者同樣為256Mb，區別為扇區大小一個為 256 * 1024另一個為64 * 1024。那麼到底選哪個呢，可以在uboot下檢視，可以看到識別到的flash擦除大小為64kB，所以應該選擇s25fl256s1。

Zynq> sf probe
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB

&qspi {
	u-boot,dm-pre-reloc;
	status = "okay";
	is-dual = <0>;
	num-cs = <1>;
	[email protected] {
		compatible = "s25fl256s1";
		reg = <0x0>;
		spi-tx-bus-width = <1>;
		spi-rx-bus-width = <4>;
		spi-max-frequency = <50000000>;
		#address-cells = <1>;
		#size-cells = <1>;
		
 
[email protected] {
			label = "qspi-fsbl-uboot";
			reg = <0x0 0x100000>;
		};
		[email protected] {
			label = "qspi-linux";
			reg = <0x300000 0x400000>;
		};
		[email protected] {
			label = "qspi-device-tree";
			reg = <0x700000 0x20000>;
		};
		[email protected] {
			label = "qspi-rootfs";
			reg = <0x720000 0x2E0000>;
		};
		
 
[email protected] {
			label = "qspi-bitstream";
			reg = <0xa00000 0x400000>;
		};
		[email protected] {
            label = "app";
            reg = <0x1000000 0x100000>;
        };
	};
};

3、其中uboot中進行的更改為uboot/include/configs/zynq-common.h

"qspiboot=echo Copying Linux from QSPI flash to RAM... && " \
		"sf probe 0 50000000 0 && " \
		"sf read 0x800000 0xA00000 0x400000 && " \
		"fpga load 0 0x800000 0x400000 &&" \
		"sf read ${kernel_load_address} 0x300000 ${kernel_size} && " \
		"sf read ${devicetree_load_address} 0x700000 ${devicetree_size} && " \
		"echo Copying ramdisk... && " \
		"sf read ${ramdisk_load_address} 0x720000 ${ramdisk_size} && " \
		"bootm ${kernel_load_address} ${ramdisk_load_address}     
               ${devicetree_load_address}\0" \

4、注意裝置樹地址範圍與uboot中的地址範圍要一致，而且要與5中燒寫的地址範圍匹配，然後編譯即可。

5、首先使用SD卡啟動，進入u-boot命令列，利用tftp伺服器進行燒寫。

tftpboot 0x800000 BOOT.bin && sf probe 0 0 0 && sf erase 0x0 0x100000 && sf write 0x800000  0x0 0x100000
tftpboot 0x800000 uImage && sf erase 0x300000 0x400000 && sf write 0x800000  0x300000 0x400000 
tftpboot 0x800000 zynq-zed.dtb && sf erase 0x700000 0x20000 && sf write 0x800000  0x700000 0x20000
tftpboot 0x800000 uramdisk.image.gz && sf erase 0x720000 0x2e0000 && sf write 0x800000 0x720000 0x2e0000
tftpboot 0x800000 design.bin && sf erase 0xA00000 0x400000 && sf write 0x800000 0xA00000 0x400000 

6、燒寫成功後從spi啟動，可以在dev下看到mtdblock0-5，也可以通過cat /proc/mtd檢視

zynq> cat /proc/mtd 
dev:    size   erasesize  name
mtd0: 00100000 00010000 "qspi-fsbl-uboot"
mtd1: 00400000 00010000 "qspi-linux"
mtd2: 00020000 00010000 "qspi-device-tree"
mtd3: 002e0000 00010000 "qspi-rootfs"
mtd4: 00400000 00010000 "qspi-bitstream"
mtd5: 00100000 00010000 "app"

7、可以看到6中有一個app分割槽，這個是我用來存放應用程式。當然以上分割槽大小並不是固定的，可以調節，但是地址範圍一定要匹配，而且分割槽大小也一定要大於此分割槽所存檔案的大小，比如核心大小一定不能超過mtd1分割槽大小，如果超過了，可以裁剪核心，要不就得增加分割槽大小。