[coreboot] New patch to review for coreboot: dd8d472 libpayload: If there's no IO space, complain if the serial claims to use it

[Stefan Reinauer]

Stefan Reinauer ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2659

-gerrit

commit dd8d472e74753b90b77115dc23b25aeecc37f588
Author: Gabe Black 
Date:   Fri Jan 18 18:24:46 2013 -0800

libpayload: If there's no IO space, complain if the serial claims to use it

Change-Id: I36c750d520ff034c9ca9b9af46bd99bd49af7355
    Signed-off-by: Gabe Black 
---
 payloads/libpayload/drivers/serial.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/payloads/libpayload/drivers/serial.c b/payloads/libpayload/drivers/serial.c
index 0d26750..4ae3e26 100644
--- a/payloads/libpayload/drivers/serial.c
+++ b/payloads/libpayload/drivers/serial.c
@@ -97,11 +97,19 @@ void serial_init(void)
    serial_is_mem_mapped =
    	(lib_sysinfo.serial->type == CB_SERIAL_TYPE_MEMORY_MAPPED);

-	if (!serial_is_mem_mapped && (inb(IOBASE + 0x05) == 0xFF) &&
-			(inb(IOBASE + 0x06) == 0xFF)) {
+	if (!serial_is_mem_mapped) {
+#ifdef CONFIG_IO_ADDRESS_SPACE
+		if ((inb(IOBASE + 0x05) == 0xFF) &&
+				(inb(IOBASE + 0x06) == 0xFF)) {
+			return;
+		}
+#else
+		printf("IO space mapped serial not supported.");
    	return;
+#endif
    }

+
    serial_hardware_is_present = 1;

#ifdef CONFIG_SERIAL_SET_SPEED