From 1d5f967fa7776fd8119bab7fbe66bffde03e4735 Mon Sep 17 00:00:00 2001
From: Warner Losh <imp@FreeBSD.org>
Date: Fri, 3 Feb 2023 08:38:29 -0700
Subject: [PATCH] kboot: Add powerpc stub for enumerate_memory_arch()

Add stub for new MI interface for enumerating memory. Right now powerpc
looks in the FDT table at a later point in boot since we don't need to
pass a specific memory table to the kernel. Leave it like that for now,
but note plans for the future.

Sponsored by:		Netflix
Reviewed by:		kevans
Differential Revision:	https://reviews.freebsd.org/D38248
---
 stand/kboot/arch/powerpc64/load_addr.c | 12 ++++++++++++
 stand/kboot/main.c                     |  1 -
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/stand/kboot/arch/powerpc64/load_addr.c b/stand/kboot/arch/powerpc64/load_addr.c
index 81b5d0d50581..ac3374ff20f2 100644
--- a/stand/kboot/arch/powerpc64/load_addr.c
+++ b/stand/kboot/arch/powerpc64/load_addr.c
@@ -208,3 +208,15 @@ kboot_get_kernel_machine_bits(void)
 	return (bits);
 }
 #endif
+
+/* Need to transition from current hacky FDT way to this code */
+bool enumerate_memory_arch(void)
+{
+	/*
+	 * For now, we dig it out of the FDT, plus we need to pass all data into
+	 * the kernel via the (adjusted) FDT we find.
+	 */
+	setenv("usefdt", "1", 1);
+
+	return true;
+}
diff --git a/stand/kboot/main.c b/stand/kboot/main.c
index b8523cb202a2..bc2dad96dbfe 100644
--- a/stand/kboot/main.c
+++ b/stand/kboot/main.c
@@ -254,7 +254,6 @@ main(int argc, const char **argv)
 	printf("\n%s", bootprog_info);
 
 	setenv("LINES", "24", 1);
-	setenv("usefdt", "1", 1);
 
 	memory_limits();