zynqQSPI启动配置

　　配置主要是官方zedboard进行配置，便于开发的目的，fpga的bit的文件和BOOT.bin分开 使用QSPI需要进行分区设置/*  * QSPI 256Mbit(32MByte) flash mapping  *  *   start       end      size     name  * ---------------------------------------  * 0x0000000 - 0x0100000  0x100000  boot.bin(1MB)  * 0x0100000 - 0x0700000  0x600000  uImage(6MB)  * 0x0700000 - 0x0720000  0x020000  devicetree(128KB)  * 0x0720000 - 0x0D00000  0x5E0000  ramdisk(5.875MB)  * 0x0D00000 - 0x1500000  0x800000  bitstream(8MB)  * 0x1500000 - 0x2000000  0x6C0000  data(6.75MB)  */修改kernel->arch/arm/boot/dts/zynq-zed.dtsmemory { device_type = ＂memory＂; reg = <0x0 0x1c000000>; }; chosen { bootargs = ＂console=ttyPS0,115200 root=/dev/mmcblk0p1 rw earlyprintk rootfstype=ext3 rootwait devtmpfs.mount=0＂; /*bootargs = ＂console=ttyPS0,115200 root=/dev/ram rw initrd=0x800000,8M earlyprintk rootwait devtmpfs.mount=1＂;*/ /*bootargs = ＂console=ttyPS0,115200 root=/dev/ram rw earlyprintk＂;*/ linux,stdout-path = &uart1; stdout-path = &uart1; };  &qspi { status = ＂okay＂; is-dual = <0>; num-cs = <1>; xlnx,fb-clk = <0x1>; xlnx,qspi-mode = <0x0>; flash@0 { /*compatible = ＂n25q128a11＂;*/ compatible = ＂s25fl256s1＂; reg = <0x0>; spi-tx-bus-width = <1>; spi-rx-bus-width = <4>; spi-max-frequency = <50000000>; #address-cells = <1>; #size-cells = <1>; partition@qspi-fsbl-uboot {   label = ＂qspi-fsbl-uboot＂;   reg = <0x0 0x100000>; };  partition@qspi-linux {   label = ＂qspi-linux＂;   reg = <0x100000 0x600000>; };  partition@qspi-device-tree {   label = ＂qspi-device-tree＂;   reg = <0x700000 0x20000>; };  partition@qspi-rootfs {   label = ＂qspi-rootfs＂;   reg = <0x720000 0x5E0000>; };  partition@qspi-bitstream {   label = ＂qspi-bitstream＂;   reg = <0xD00000 0x800000>; };  partition@qspi-data { label = ＂data＂; reg = <0x1500000 0xB00000>; }; }; }; 修改uboot->arch/arm/dts/zynq-zed.dtsmemory { device_type = ＂memory＂; reg = <0x0 0x1c000000>; };  &qspi { u-boot,dm-pre-reloc; status = ＂okay＂; is-dual = <0>; num-cs = <1>;  flash@0 { compatible = ＂s25fl256s1＂; reg = <0x0>; spi-tx-bus-width = <1>; spi-rx-bus-width = <4>; spi-max-frequency = <50000000>; #address-cells = <1>; #size-cells = <1>; partition@qspi-fsbl-uboot {   label = ＂qspi-fsbl-uboot＂;   reg = <0x0 0x100000>; };  partition@qspi-linux {   label = ＂qspi-linux＂;   reg = <0x100000 0x600000>; };  partition@qspi-device-tree {   label = ＂qspi-device-tree＂;   reg = <0x700000 0x20000>; };  partition@qspi-rootfs {   label = ＂qspi-rootfs＂;   reg = <0x720000 0x5E0000>; };  partition@qspi-bitstream {   label = ＂qspi-bitstream＂;   reg = <0xD00000 0x800000>; };  partition@qspi-data {   label = ＂data＂;   reg = <0x1500000 0xB00000>; }; }; };include/configs/zynq-common.h＂loadbit_addr=0x200000＂ ＂qspiboot=echo Copying Linux from QSPI flash... && ＂ ＂sf probe 0 && ＂ ＂sf read ${loadbit_addr} 0xd00000 0x800000 && ＂ ＂fpga loadb 0 ${loadbit_addr} 0x800000 && ＂ ＂sf read ${kernel_load_address} 0x100000 ${kernel_size} && ＂ ＂sf read ${devicetree_load_address} 0x700000 ${devicetree_size} && ＂ ＂echo Runing Kernel... && ＂ ＂bootm ${kernel_load_address} - ${devicetree_load_address}＂
　　sf具体用法 - SPI flash sub-system Usage: sf probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus                                   and chip select sf read addr offset len - read `len＂ bytes starting at                                   `offset＂ to memory at `addr＂ sf write addr offset len        - write `len＂ bytes from memory                                   at `addr＂ to flash at `offset＂ sf erase offset [+]len          - erase `len＂ bytes from `offset＂                                   `+len＂ round up `len＂ to block size sf update addr offset len       - erase and write `len＂ bytes from memory                                   at `addr＂ to flash at `offset＂
　　sf probe 0 50000000   配置SPI 50M速率TF卡uEnv.txtbootargs=console=ttyPS0,115200 root=/dev/mmcblk0p1 rw earlyprintk rootfstype=ext3 rootwait