summaryrefslogtreecommitdiff
path: root/src/cpu/x86/smm/smiutil.c
diff options
context:
space:
mode:
authorStefan Reinauer <stefan.reinauer@coreboot.org>2011-04-14 22:28:00 +0000
committerStefan Reinauer <stepan@openbios.org>2011-04-14 22:28:00 +0000
commit24ef134b37131064a6f45a221b6478e55f0a38ca (patch)
tree8d6bfe6c51385a0eea20cbe5b5a9a1fbe50edd5e /src/cpu/x86/smm/smiutil.c
parent40e42a824b2800ed90614f3a5d3e5edf7cb877ff (diff)
downloadcoreboot-24ef134b37131064a6f45a221b6478e55f0a38ca.tar.xz
drop half an uart8250 implementation from smiutil and use the common code
for that instead. This also allows using non-uart8250 consoles for smi debugging. Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6501 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/x86/smm/smiutil.c')
-rw-r--r--src/cpu/x86/smm/smiutil.c102
1 files changed, 22 insertions, 80 deletions
diff --git a/src/cpu/x86/smm/smiutil.c b/src/cpu/x86/smm/smiutil.c
index 980ea69f51..cf951f4518 100644
--- a/src/cpu/x86/smm/smiutil.c
+++ b/src/cpu/x86/smm/smiutil.c
@@ -21,110 +21,52 @@
#include <arch/io.h>
#include <arch/romcc_io.h>
-#include <console/console.h>
#include <cpu/x86/cache.h>
#include <cpu/x86/smm.h>
-/* ********************* smi_util ************************* */
-
-/* Data */
-#define UART_RBR 0x00
-#define UART_TBR 0x00
-
-/* Control */
-#define UART_IER 0x01
-#define UART_IIR 0x02
-#define UART_FCR 0x02
-#define UART_LCR 0x03
-#define UART_MCR 0x04
-#define UART_DLL 0x00
-#define UART_DLM 0x01
-
-/* Status */
-#define UART_LSR 0x05
-#define UART_MSR 0x06
-#define UART_SCR 0x07
-
-#ifndef CONFIG_TTYS0_BASE
-#define CONFIG_TTYS0_BASE 0x3f8
-#endif
-
-#ifndef CONFIG_TTYS0_BAUD
-#define CONFIG_TTYS0_BAUD 115200
+#include <console/console.h>
+#include <console/vtxprintf.h>
+#if CONFIG_CONSOLE_SERIAL8250
+#include <uart8250.h>
#endif
-
-#ifndef CONFIG_TTYS0_DIV
-#define CONFIG_TTYS0_DIV (115200/CONFIG_TTYS0_BAUD)
+#if CONFIG_USBDEBUG
+#include <usbdebug.h>
#endif
-
-/* Line Control Settings */
-#ifndef CONFIG_TTYS0_LCS
-/* Set 8bit, 1 stop bit, no parity */
-#define CONFIG_TTYS0_LCS 0x3
+#if CONFIG_CONSOLE_NE2K
+#include <console/ne2k.h>
#endif
-#define UART_LCS CONFIG_TTYS0_LCS
-
-static int uart_can_tx_byte(void)
-{
- return inb(CONFIG_TTYS0_BASE + UART_LSR) & 0x20;
-}
-
-static void uart_wait_to_tx_byte(void)
-{
- while(!uart_can_tx_byte())
- ;
-}
-
-static void uart_wait_until_sent(void)
-{
- while(!(inb(CONFIG_TTYS0_BASE + UART_LSR) & 0x40))
- ;
-}
-
-static void uart_tx_byte(unsigned char data)
-{
- uart_wait_to_tx_byte();
- outb(data, CONFIG_TTYS0_BASE + UART_TBR);
- /* Make certain the data clears the fifos */
- uart_wait_until_sent();
-}
-
void console_tx_flush(void)
{
- uart_wait_to_tx_byte();
+ // the tx_byte functions take care of the flush.
+ // if not, this should be implemented.
}
void console_tx_byte(unsigned char byte)
{
if (byte == '\n')
- uart_tx_byte('\r');
- uart_tx_byte(byte);
-}
+ console_tx_byte('\r');
-#if CONFIG_DEBUG_SMI
-static void uart_init(void)
-{
- /* disable interrupts */
- outb(0x0, CONFIG_TTYS0_BASE + UART_IER);
- /* enable fifo's */
- outb(0x01, CONFIG_TTYS0_BASE + UART_FCR);
- /* Set Baud Rate Divisor to 12 ==> 115200 Baud */
- outb(0x80 | UART_LCS, CONFIG_TTYS0_BASE + UART_LCR);
- outb(CONFIG_TTYS0_DIV & 0xFF, CONFIG_TTYS0_BASE + UART_DLL);
- outb((CONFIG_TTYS0_DIV >> 8) & 0xFF, CONFIG_TTYS0_BASE + UART_DLM);
- outb(UART_LCS, CONFIG_TTYS0_BASE + UART_LCR);
-}
+#if CONFIG_CONSOLE_SERIAL8250
+ uart8250_tx_byte(CONFIG_TTYS0_BASE, byte);
+#endif
+#if CONFIG_USBDEBUG
+ usbdebug_tx_byte(byte);
#endif
+#if CONFIG_CONSOLE_NE2K
+ ne2k_append_data(&byte, 1, CONFIG_CONSOLE_NE2K_IO_PORT);
+#endif
+}
void console_init(void)
{
#if CONFIG_DEBUG_SMI
console_loglevel = CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
+#if CONFIG_CONSOLE_SERIAL8250
uart_init();
+#endif
#else
console_loglevel = 1;
#endif
}
-/* ********************* smi_util ************************* */