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[fdt] Add tests for device tree creation

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-05-30 14:15:43 +01:00
parent 3fe321c42a
commit d64250918c
1 changed files with 18 additions and 0 deletions
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18
src/tests/fdt_test.c
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@@ -34,6 +34,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <string.h>
#include <ipxe/fdt.h>
#include <ipxe/image.h>
#include <ipxe/test.h>
/** Simplified QEMU sifive_u device tree blob */
@@ -164,6 +165,7 @@ static void fdt_test_exec ( void ) {
struct fdt_header *hdr;
struct fdt fdt;
const char *string;
struct image *image;
uint32_t u32;
uint64_t u64;
unsigned int count;
@@ -260,6 +262,22 @@ static void fdt_test_exec ( void ) {
ok ( strcmp ( desc.name, "device_type" ) == 0 );
ok ( strcmp ( desc.data, "memory" ) == 0 );
ok ( desc.depth == 0 );
/* Verify device tree creation */
image = image_memory ( "test.dtb", sifive_u, sizeof ( sifive_u ) );
ok ( image != NULL );
image_tag ( image, &fdt_image );
ok ( fdt_create ( &hdr, "hello world", 0xabcd0000, 0x00001234 ) == 0 );
ok ( fdt_parse ( &fdt, hdr, -1UL ) == 0 );
ok ( fdt_path ( &fdt, "/chosen", &offset ) == 0 );
ok ( ( string = fdt_string ( &fdt, offset, "bootargs" ) ) != NULL );
ok ( strcmp ( string, "hello world" ) == 0 );
ok ( fdt_u64 ( &fdt, offset, "linux,initrd-start", &u64 ) == 0 );
ok ( u64 == 0xabcd0000 );
ok ( fdt_u64 ( &fdt, offset, "linux,initrd-end", &u64 ) == 0 );
ok ( u64 == 0xabcd1234 );
fdt_remove ( hdr );
unregister_image ( image );
}
/** FDT self-test */