iot2050: Update firmware layout
The latest version of the binary-only firmware parts come in a combined
form of FSBL and sysfw containers. This implies some layout changes to
the generated firmware image but also makes handling of artifacts much
simpler (4 files less). The env locations will not change, just the
space reserved for U-Boot will shrink from 4 to 3 MB - still plenty of
space left in practice.
Adjust configuration and documentation accordingly.
Along this change, add a new reservation for update commands of the
user-controlled OTP part. A specific userspace tool will fill it, and
the FSBL will evaluate it during boot. This reservation will use 64K of
the former sysfw section.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
diff --git a/configs/iot2050_pg1_defconfig b/configs/iot2050_pg1_defconfig
index 579971c..57a2a6d 100644
--- a/configs/iot2050_pg1_defconfig
+++ b/configs/iot2050_pg1_defconfig
@@ -52,7 +52,7 @@
# CONFIG_SPL_SPI_FLASH_TINY is not set
CONFIG_SPL_SPI_FLASH_SFDP_SUPPORT=y
CONFIG_SPL_SPI_LOAD=y
-CONFIG_SYS_SPI_U_BOOT_OFFS=0x280000
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x380000
CONFIG_SYS_MAXARGS=64
CONFIG_SYS_PBSIZE=1050
CONFIG_CMD_ASKENV=y