diff options
Diffstat (limited to 'files/uboot/b2260/u-bootrom.script')
| -rw-r--r-- | files/uboot/b2260/u-bootrom.script | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/files/uboot/b2260/u-bootrom.script b/files/uboot/b2260/u-bootrom.script new file mode 100644 index 0000000..f9b76cf --- /dev/null +++ b/files/uboot/b2260/u-bootrom.script @@ -0,0 +1,69 @@ +# u-bootrom supports u-boot.2015 commands plus few extras. +# +# Extra variables: +# script_dev_usb 'usb X.Y' default usb instance:partition to boot from. +# script_dev_mmc 'mmc X.Y' default mmc instance:partition to boot from. +# script_dev $script_usb|mmc_dev depending on media where boot script was found. +# script_fsload 'fatload' or 'ext2load' depending on which was used to load boot script. +# dram_base DDR start address +# dram_size DDR size (in bytes) +# load_addr default load address (DDR start) +# board board id ("b2120", "b2260", ...) +# +# Extra commands: +# hpen holding pen reconfiguration and kick support, for SMP boot. +# boot_optee OPTEE specific boot command +# +# > +# > help boot_optee +# +# boot_optee s_entry [s_arg0 [s_arg1 [s_arg2 [s_arg3]]]] ns_entry +# +# - boot a secure and a non secure application +# 's_entry' is the secure application entry point +# 's_arg0-3' are the 4 parameters passed to the secure application +# 'ns_entry' is the non-secure application entry point. +# ns_entry has no argument. Secure application is +# expected to provide args, if any. Secure expects +# only an physical entry point from non secure. +# > +# > help hpen +# +# hpen prepare <addr> [1stage|2stage] +# +# - prepare a 1stage or a 2stage hpen sequence. +# <addr> specifies the address of the hpen kicker to use. hexa. +# +# hpen kick hpen|<entrypoint> +# +# - kick the loaded hpen. returns only once cores have all left +# the current hpen loop. +# +# <entrypoint> is the target address core shall branch to. +# +# Using string "hpen" allows to enter back to the hpen sequence. +# It allows to reprogram a specific hpen setup. +# +# At u-boot entry, secondary boot core are placed in a 1stage hpen +# sequence with a local ERAM cell address as hpen kicker: 0x094100A4. +# magic value! +# > +# +# Traces considerations: +# +# u-bootrom enables silent console. To get some logs from this script one +# can disable silent mode ("setenv silent;") and re-enable silent mode +# ("setenv silent 1") in this script. +# ----------------------------------------------------------------------- +# +# This is the default install: by default, boot the kernel for current board +# + +script_path="b2260/u-bootrom.script-uboot" + +setenv silent; +echo "[bootscript] boot from $script_path" +setenv silent 1 + +$script_fsload $script_dev $load_addr $script_path +source $load_addr $filesize |