[U-Boot] [PATCH 4/4] efi_loader: EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset()

[Heinrich Schuchardt]

Implement the reset service of the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.

This should resolve the error reported by the SCT in
Protocol/SimpleTextOut/BlackBoxTest/SimpleTextOutBBTestFunction_uefi.c:639

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 lib/efi_loader/efi_console.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 3fd0d2fd51..17aced86a5 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -110,7 +110,15 @@ static efi_status_t EFIAPI efi_cout_reset(
 			char extended_verification)
 {
 	EFI_ENTRY("%p, %d", this, extended_verification);
-	return EFI_EXIT(EFI_UNSUPPORTED);
+
+	/* Clear screen */
+	printf(ESC "[2J");
+	efi_con_mode.cursor_column = 0;
+	efi_con_mode.cursor_row = 0;
+	/* Set default colors */
+	printf(ESC "[0;37;40m");
+
+	return EFI_EXIT(EFI_SUCCESS);
 }
 
 static efi_status_t EFIAPI efi_cout_output_string(
-- 
2.18.0