riscv: binman: Fix compilation error

Some platforms may not have any DDR memory below 4G and for such platforms
the TEXT_BASE and LOAD addresses etc are all 64 bit addresses due to
which the u-boot build fails with below error:

u-boot/arch/riscv/dts/binman.dtsi:30.14-25
Value out of range for 32-bit array element
u-boot/arch/riscv/dts/binman.dtsi:43.14-25
Value out of range for 32-bit array element
u-boot/arch/riscv/dts/binman.dtsi:44.15-26
Value out of range for 32-bit array element
FATAL ERROR: Syntax error parsing input tree

Fix by setting the address-cells property to 2 and converting load
addresses to 64 bit values.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/riscv/dts/binman.dtsi b/arch/riscv/dts/binman.dtsi
index 156cb00..b448b2a 100644
--- a/arch/riscv/dts/binman.dtsi
+++ b/arch/riscv/dts/binman.dtsi
@@ -5,6 +5,9 @@
 
 #include <config.h>
 
+#define U64_TO_U32_H(addr)		(((addr) >> 32) & 0xffffffff)
+#define U64_TO_U32_L(addr)		((addr) & 0xffffffff)
+
 / {
 	binman: binman {
 		multiple-images;
@@ -17,7 +20,7 @@
 
 		fit {
 			description = "Configuration to load OpenSBI before U-Boot";
-			#address-cells = <1>;
+			#address-cells = <2>;
 			fit,fdt-list = "of-list";
 
 			images {
@@ -27,7 +30,8 @@
 					os = "U-Boot";
 					arch = "riscv";
 					compression = "none";
-					load = <CONFIG_TEXT_BASE>;
+					load = <U64_TO_U32_H(CONFIG_TEXT_BASE)
+						U64_TO_U32_L(CONFIG_TEXT_BASE)>;
 
 					uboot_blob: blob-ext {
 						filename = "u-boot-nodtb.bin";
@@ -40,8 +44,10 @@
 					os = "opensbi";
 					arch = "riscv";
 					compression = "none";
-					load = <CONFIG_SPL_OPENSBI_LOAD_ADDR>;
-					entry = <CONFIG_SPL_OPENSBI_LOAD_ADDR>;
+					load = <U64_TO_U32_H(CONFIG_SPL_OPENSBI_LOAD_ADDR)
+						U64_TO_U32_L(CONFIG_SPL_OPENSBI_LOAD_ADDR)>;
+					entry = <U64_TO_U32_H(CONFIG_SPL_OPENSBI_LOAD_ADDR)
+						U64_TO_U32_L(CONFIG_SPL_OPENSBI_LOAD_ADDR)>;
 
 					opensbi_blob: opensbi {
 						filename = "fw_dynamic.bin";