Am Tue, 22 Jan 2008 20:37:59 +0100 schrieb Peter Stuge:
> Some kind of recovery, management, whatever. I can't think of all uses
> either, but I certianly do not want to impose an arbitrary limit like
> "coreboot only tells you about serial ports that are the console" - I
> like the generic serial tag.
Attached patch changes the following vs. the version as of yesterday:
- fix comment (patch adds a serial port, not a console)
- change tag ID to 0xf (0xe is already taken in v3)
Regards,
Patrick Georgi
This patch adds a new record type for lbtable to provide information
about a serial port. If a port is defined in the board configuration,
add it to lbtable.
Signed-off-by: Patrick Georgi <[EMAIL PROTECTED]>
Index: src/include/boot/coreboot_tables.h
===================================================================
--- src/include/boot/coreboot_tables.h (Revision 3066)
+++ src/include/boot/coreboot_tables.h (Arbeitskopie)
@@ -138,6 +138,13 @@
uint8_t string[0];
};
+#define LB_TAG_SERIAL 0x000f
+struct lb_serial {
+ uint32_t tag;
+ uint32_t size;
+ uint16_t ioport;
+};
+
/* The following structures are for the cmos definitions table */
#define LB_TAG_CMOS_OPTION_TABLE 200
/* cmos header record */
Index: src/arch/i386/boot/coreboot_table.c
===================================================================
--- src/arch/i386/boot/coreboot_table.c (Revision 3066)
+++ src/arch/i386/boot/coreboot_table.c (Arbeitskopie)
@@ -74,6 +74,22 @@
return mem;
}
+struct lb_serial *lb_serial(struct lb_header *header)
+{
+#if defined(TTYS0_BASE)
+ struct lb_record *rec;
+ struct lb_serial *serial;
+ rec = lb_new_record(header);
+ serial = (struct lb_serial *)rec;
+ serial->tag = LB_TAG_SERIAL;
+ serial->size = sizeof(*serial);
+ serial->ioport = TTYS0_BASE;
+ return serial;
+#else
+ return header;
+#endif
+}
+
struct lb_mainboard *lb_mainboard(struct lb_header *header)
{
struct lb_record *rec;
@@ -406,8 +422,10 @@
* size of the coreboot table.
*/
- /* Record our motheboard */
+ /* Record our motherboard */
lb_mainboard(head);
+ /* Record the serial port, if present */
+ lb_serial(head);
/* Record our various random string information */
lb_strings(head);
--
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