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authorStefan Reinauer <reinauer@google.com>2011-04-26 23:47:04 +0000
committerStefan Reinauer <stepan@openbios.org>2011-04-26 23:47:04 +0000
commit4885daadb33bea37ef3970696d3cf0d05e9852a3 (patch)
tree9b068b5645f5aa60fd310919c0a08ce3dea34b3f /src/cpu/x86/smm
parent3187d0267d4b456eb43bca21a817c78687d6f73b (diff)
downloadcoreboot-4885daadb33bea37ef3970696d3cf0d05e9852a3.tar.xz
Add support for memory mapped UARTs to coreboot and add the OXPCIe952 as an
example. This newer version reflects the recent changes to further simplify the console code and partly gets rid of some hacks in the previous version. Signed-off-by: Stefan Reinauer <reinauer@google.com> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6544 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/x86/smm')
-rw-r--r--src/cpu/x86/smm/smiutil.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/cpu/x86/smm/smiutil.c b/src/cpu/x86/smm/smiutil.c
index cf951f4518..d9057d813a 100644
--- a/src/cpu/x86/smm/smiutil.c
+++ b/src/cpu/x86/smm/smiutil.c
@@ -26,7 +26,7 @@
#include <console/console.h>
#include <console/vtxprintf.h>
-#if CONFIG_CONSOLE_SERIAL8250
+#if CONFIG_CONSOLE_SERIAL8250 || CONFIG_CONSOLE_SERIAL8250MEM
#include <uart8250.h>
#endif
#if CONFIG_USBDEBUG
@@ -36,6 +36,10 @@
#include <console/ne2k.h>
#endif
+#if CONFIG_CONSOLE_SERIAL8250MEM
+static u32 serial8250mem_base_address = 0;
+#endif
+
void console_tx_flush(void)
{
// the tx_byte functions take care of the flush.
@@ -47,6 +51,10 @@ void console_tx_byte(unsigned char byte)
if (byte == '\n')
console_tx_byte('\r');
+#if CONFIG_CONSOLE_SERIAL8250MEM
+ if (serial8250mem_base_address)
+ uart8250_mem_tx_byte(serial8250mem_base_address, byte);
+#endif
#if CONFIG_CONSOLE_SERIAL8250
uart8250_tx_byte(CONFIG_TTYS0_BASE, byte);
#endif
@@ -65,6 +73,9 @@ void console_init(void)
#if CONFIG_CONSOLE_SERIAL8250
uart_init();
#endif
+#if CONFIG_CONSOLE_SERIAL8250MEM
+ serial8250mem_base_address = uart_mem_init();
+#endif
#else
console_loglevel = 1;
#endif