uboot-sign: support 64bits address

The default value of address-cells is "1", so the generated "its" file
only support 32bits address for uboot FIT image.
However, some platforms may want to support 64bits address of
UBOOT_LOADADDRESS and UBOOT_ENTRYPOINT.
Therefore, add variables to support both 64bits and 32bits address.

By default, the address-cell is 1 which is used for 32bits load address.
If users would like to use 64bits load address,
users are able to set as following for "0x400000000" 64bits load address.
1. FIT_ADDRESS_CELLS = "2"
2. UBOOT_LOADADDRESS= "0x04 0x00000000"

(From OE-Core rev: b4e46cdbd0727d97d13c2b8e9e4ce19c5c693f51)

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/meta/classes-recipe/uboot-sign.bbclass b/meta/classes-recipe/uboot-sign.bbclass
index 3065c54577..ad04c82378 100644
--- a/meta/classes-recipe/uboot-sign.bbclass
+++ b/meta/classes-recipe/uboot-sign.bbclass
@@ -81,6 +81,10 @@ UBOOT_FIT_KEY_REQ_ARGS ?= "-batch -new"
 # Standard format for public key certificate
 UBOOT_FIT_KEY_SIGN_PKCS ?= "-x509"
 
+# length of address in number of <u32> cells
+# ex: 1 32bits address, 2 64bits address
+UBOOT_FIT_ADDRESS_CELLS ?= "1"
+
 # This is only necessary for determining the signing configuration
 KERNEL_PN = "${PREFERRED_PROVIDER_virtual/kernel}"
 
@@ -234,7 +238,7 @@ uboot_fitimage_assemble() {
 
 / {
     description = "${UBOOT_FIT_DESC}";
-    #address-cells = <1>;
+    #address-cells = <${UBOOT_FIT_ADDRESS_CELLS}>;
 
     images {
         uboot {