riscv: qemu: Remove out-of-date "riscv, kernel-start" handling

Commit 66ffe57 ("riscv: qemu: detect and boot the kernel passed by QEMU")
added some logic to handle "riscv,kernel-start" in DT and stored the
address to an environment variable kernel_start.

However this "riscv,kernel-start" has never been an upstream DT binding.
The upstream QEMU never generates such a DT either. Presumably U-Boot
development was based on a downstream QEMU fork.

Now we drop all codes in commit 66ffe57, except that BOARD_LATE_INIT
is kept for later use.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

1 files changed, 0 insertions, 24 deletions

diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c
index ae3b7a3295..f39f3be366 100644
--- a/board/emulation/qemu-riscv/qemu-riscv.c
+++ b/board/emulation/qemu-riscv/qemu-riscv.c
@@ -41,30 +41,6 @@ int board_init(void)
 
 int board_late_init(void)
 {
-	ulong kernel_start;
-	ofnode chosen_node;
-	int ret;
-
-	chosen_node = ofnode_path("/chosen");
-	if (!ofnode_valid(chosen_node)) {
-		debug("No chosen node found, can't get kernel start address\n");
-		return 0;
-	}
-
-#ifdef CONFIG_ARCH_RV64I
-	ret = ofnode_read_u64(chosen_node, "riscv,kernel-start",
-			      (u64 *)&kernel_start);
-#else
-	ret = ofnode_read_u32(chosen_node, "riscv,kernel-start",
-			      (u32 *)&kernel_start);
-#endif
-	if (ret) {
-		debug("Can't find kernel start address in device tree\n");
-		return 0;
-	}
-
-	env_set_hex("kernel_start", kernel_start);
-
 	return 0;
 }