I'm using Cypress S25FL512S QSPI, but "saveenv" is not working in u-boot-2017.05-rc3, the changes did not get stored even though the following message is printed:

Saving Environment to SPI Flash... SF: Detected s25fl512s_256k with page size 512 Bytes, erase size 256 KiB, total 64 MiB Erasing SPI flash...Writing to SPI flash...done

Below is my DTS content:

&qspi { status = "okay"; u-boot,dm-pre-reloc;

flash0: s25fl512s@0 { u-boot,dm-pre-reloc; #address-cells = <1>; #size-cells = <1>; compatible = "spansion,s25fl512s", "jedec,spi-nor"; reg = <0>; spi-max-frequency = <66000000>; spi-tx-bus-width = <4>; spi-rx-bus-width = <4>; spi-cpol; spi-cpha; m25p,fast-read;

cdns,page-size = <512>; cdns,block-size = <262144>; cdns,tshsl-ns = <50>; cdns,tsd2d-ns = <50>; cdns,tchsh-ns = <3>; cdns,tslch-ns = <3>;

partition@qspi-boot { /* 1536kB for u-boot */ label = "Flash 0 u-boot"; reg = <0x0 0x180000>; }; partition@qspi-env { /* 256kB for u-boot env */ label = "Flash 0 u-boot env"; reg = <0x180000 0x40000>; }; partition@qspi-kernel { /* 8MB for kernel */ label = "Flash 0 kernel"; reg = <0x1C0000 0x800000>; }; partition@qspi-dtb { /* 256kB for dtb */ label = "Flash 0 dtb"; reg = <0x9C0000 0x40000>; }; partition@qspi-rootfs { /* 54MB for UBIFS */ label = "Flash 0 UBIFS Filesystem"; reg = <0xA00000 0x3600000>; }; }; };

Below is the snippet of my board include header:

#define CONFIG_ENV_IS_IN_SPI_FLASH

/* * U-Boot environment */ #define CONFIG_ENV_SIZE (2 * 1024)

/* Environment for SDMMC boot */ #if defined(CONFIG_ENV_IS_IN_MMC) && !defined(CONFIG_ENV_OFFSET) #define CONFIG_SYS_MMC_ENV_DEV 0 /* device 0 */ #define CONFIG_ENV_OFFSET 512 /* just after the MBR */ #endif

/* Environment for QSPI boot */ #define CONFIG_ENV_OFFSET 0x00180000 #define CONFIG_ENV_SECT_SIZE (256 * 1024)

/* * mtd partitioning for serial NOR flash * * device nor0 <ff705000.spi.0>, # parts = 5 * #: name size offset mask_flags * 0: u-boot 0x00180000 0x00000000 0 * 1: env 0x00040000 0x00180000 0 * 2: kernel 0x00800000 0x001c0000 0 * 3: dtb 0x00040000 0x009c0000 0 * 4: rootfs 0x03600000 0x00a00000 0 * */ #if defined(CONFIG_CMD_SF) && !defined(MTDPARTS_DEFAULT) #define MTDPARTS_DEFAULT "mtdparts=ff705000.spi.0:"\ "1536k(u-boot)," \ "256k(env)," \ "8m(kernel)," \ "256k(dtb)," \ "-@54m(rootfs)\0" #endif