dt: Fetch the CPU frequency as well

If the 'timebase-frequency' property is available under the 'cpus' node
from the DTB blob, it makes sense to try to fetch this value from there
instead of hardcoding it. For other use-cases, where this information is
not available through DT (e.g. ACPI on the VisionFive2 board), we will
have to hardcode it with a default value even if it's not the proper
one.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/test/test_dt.c b/test/test_dt.c
index 31f729f..1eb9751 100644
--- a/test/test_dt.c
+++ b/test/test_dt.c
@@ -19,11 +19,17 @@ int main(void)
 
 	contents[fsize] = 0;
 
-	struct initrd_addr addr = find_dt_initrd_addr(contents);
+	struct dt_info info = {
+		.cpu_freq = 0,
+		.initrd_start = 0,
+		.initrd_end = 0,
+	};
+	get_dt_info(contents, &info);
 	free(contents);
 
-	assert(addr.start == 0x84200000);
-	assert(addr.end == 0x84200c00);
+	assert(info.initrd_start == 0x84200000);
+	assert(info.initrd_end == 0x84200c00);
+	assert(info.cpu_freq == 0x989680);
 
 	exit(0);
 }