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Secure Boot with i.MX28 HAB Version 4, Rev. 1

Freescale Semiconductor 21

Signed U-Boot and Linux kernel example

// Load and call u_boot - ELF ARM image

//----------------------------------------------------------

load u_boot_bin > 0x41008000;

load u_boot;

load uboot_hab_data > u_boot:__hab_data;

hab jump u_boot:input_ivt;

}

4.2 Sample boot descriptor file used for Linux kernel image

// i.MX28 ROM command script to load and run Linux kernel

options {

flags = 0x01;

}

sources {

power_prep = "./power_prep";

power_prep_bin = "./power_prep.bin";

power_prep_hab_data = "./power_prep_hab_data";

boot_prep = "./boot_prep";

boot_prep_bin = "./boot_prep.bin";

boot_prep_hab_data = "./boot_prep_hab_data";

linux_prep = "./linux_prep";

linux_prep_bin = "./linux_prep.bin";

linux_prep_hab_data = "./linux_prep_hab_data";

linux_kernel_hab_data = "./linux_kernel_hab_data";

zImage = "./zImage";

}

section (0) {

//----------------------------------------------------------

// Power Supply initialization

//----------------------------------------------------------

load power_prep_bin > 0x10;

load power_prep;

load power_prep_hab_data > power_prep:__hab_data;

hab call power_prep:input_ivt;

//----------------------------------------------------------

// SDRAM initialization

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Crypto D100 Guide de l'utilisateur Page 21