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authorGabe Black <gabeblack@google.com>2013-01-18 18:37:29 -0800
committerRonald G. Minnich <rminnich@gmail.com>2013-03-13 23:05:06 +0100
commitb7b57d97512f1a5fc9a102ae0374ff08242b6e0c (patch)
tree6d865e511f2b0fb7650c88d451d3dc3e822652f4 /payloads
parentd8d4d113f005c28f3b8d9cc2c6b57627bdf35de1 (diff)
downloadcoreboot-b7b57d97512f1a5fc9a102ae0374ff08242b6e0c.tar.xz
libpayload: If there's no IO address space, don't try to use it for serial
Change-Id: I01b1fa42139af925716cd5d57f96dc24da6df5a7 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/2660 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'payloads')
-rw-r--r--payloads/libpayload/drivers/serial.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/payloads/libpayload/drivers/serial.c b/payloads/libpayload/drivers/serial.c
index 4ae3e26dbe..df0f2e3438 100644
--- a/payloads/libpayload/drivers/serial.c
+++ b/payloads/libpayload/drivers/serial.c
@@ -39,18 +39,22 @@ static int serial_is_mem_mapped = 0;
static uint8_t serial_read_reg(int offset)
{
- if (serial_is_mem_mapped)
- return readb(MEMBASE + offset);
- else
+#ifdef CONFIG_IO_ADDRESS_SPACE
+ if (!serial_is_mem_mapped)
return inb(IOBASE + offset);
+ else
+#endif
+ return readb(MEMBASE + offset);
}
static void serial_write_reg(uint8_t val, int offset)
{
- if (serial_is_mem_mapped)
- writeb(val, MEMBASE + offset);
- else
+#ifdef CONFIG_IO_ADDRESS_SPACE
+ if (!serial_is_mem_mapped)
outb(val, IOBASE + offset);
+ else
+#endif
+ writeb(val, MEMBASE + offset);
}
#ifdef CONFIG_SERIAL_SET_SPEED