[U-Boot] [PATCH v2 1/2] distro_bootcmd: add spi flash boot command
Oskari Lemmela
oskari at lemmela.net
Wed Jan 30 19:21:28 UTC 2019
Add a boot command to distro boot to support load FIT image
from SPI flash.
Signed-off-by: Oskari Lemmela <oskari at lemmela.net>
---
Kconfig | 29 +++++++++++++++++++++++++++++
include/config_distro_bootcmd.h | 16 ++++++++++++++++
2 files changed, 45 insertions(+)
diff --git a/Kconfig b/Kconfig
index a078f7b1b6..f28fbf4fc0 100644
--- a/Kconfig
+++ b/Kconfig
@@ -342,6 +342,35 @@ 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.
+
+config FIT_FLASH_IMAGE_SIZE
+ hex "FIT image size"
+ depends on FIT_SPI_FLASH_BOOT
+ default 0x700000
+ help
+ Max size of the FIT image.
+
if SPL
config SPL_FIT
diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h
index 555efb7433..75bc76c139 100644
--- a/include/config_distro_bootcmd.h
+++ b/include/config_distro_bootcmd.h
@@ -242,6 +242,22 @@
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_SHARED_VIRTIO BOOTENV_SHARED_BLKDEV(virtio)
#define BOOTENV_DEV_VIRTIO BOOTENV_DEV_BLKDEV
--
2.17.1
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