Add a boot command to distro boot to support load FIT image from SPI flash.
Tested with Pine A64-LTS board to load kernel and dtb.
Signed-off-by: Oskari Lemmela oskari@lemmela.net --- Kconfig | 32 ++++++++++++++++++++++++++++++++ include/config_distro_bootcmd.h | 16 ++++++++++++++++ 2 files changed, 48 insertions(+)
diff --git a/Kconfig b/Kconfig index d2eb744e70..391ce58810 100644 --- a/Kconfig +++ b/Kconfig @@ -395,6 +395,38 @@ config FIT_IMAGE_POST_PROCESS injected into the FIT creation (i.e. the blobs would have been pre- processed before being added to the FIT image).
+config FIT_SPI_FLASH_BOOT + bool "Distro bootcmd from SPI Flash" + depends on DM_SPI_FLASH + imply CMD_SF + help + Enable SPI bootcmd to load FIT image from SPI flash. Command + probes for the SPI flash device. If device is found command + will try to load FIT image to memory and boot it. + +config FIT_FLASH_IMAGE_ADDR + hex "FIT image memory address" + depends on FIT_SPI_FLASH_BOOT + help + Memory address where to load FIT image. + +config FIT_FLASH_IMAGE_OFFSET + hex "FIT image flash offset" + depends on FIT_SPI_FLASH_BOOT + default 0x100000 + help + Flash offset of FIT image. Default 1MB offset leaves space for u-boot + itself. + +config FIT_FLASH_IMAGE_SIZE + hex "FIT image size" + depends on FIT_SPI_FLASH_BOOT + default 0x700000 + help + Maximum size of the FIT image. Default value of 7MB is enough for + small compressed kernel, dtb and ramdisk. Reducing offset and image + size allows to use smaller than 8MB flash devices. + if SPL
config SPL_FIT diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h index 3570a32dff..8c6376ccab 100644 --- a/include/config_distro_bootcmd.h +++ b/include/config_distro_bootcmd.h @@ -280,6 +280,22 @@ BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB #endif
+#ifdef CONFIG_FIT_SPI_FLASH_BOOT +#define BOOT_TARGET_DEVICES_SPI(func) func(SPI, spi, 0) +#define BOOTENV_DEV_SPI(devtypeu, devtypel, instance) \ + "image_addr_r=" __stringify(CONFIG_FIT_FLASH_IMAGE_ADDR) "\0" \ + "image_addr=" __stringify(CONFIG_FIT_FLASH_IMAGE_OFFSET) "\0" \ + "image_size=" __stringify(CONFIG_FIT_FLASH_IMAGE_SIZE) "\0" \ + "bootcmd_" #devtypel #instance "=" \ + "if sf probe " #instance "; then " \ + "sf read ${image_addr_r} ${image_addr} ${image_size}; " \ + "bootm ${image_addr_r}; " \ + "fi\0" +#define BOOTENV_DEV_NAME_SPI BOOTENV_DEV_NAME_BLKDEV +#else +#define BOOT_TARGET_DEVICES_SPI(func) +#endif + #ifdef CONFIG_CMD_VIRTIO #define BOOTENV_RUN_VIRTIO_INIT "run virtio_init; " #define BOOTENV_SET_VIRTIO_NEED_INIT "virtio_need_init=; "