Board enable and autodetection for BioStar P4M80-M4
Thanks to Reinder for clean room reverse engineering and data sheet diving!
This board is autodetected because there are some good BioStar subsystem IDs.
Matching uses onboard VT6420 SATA RAID with subsystem BioStar 3206 and
onboard UniChrome Pro IGP graphics with subsystem BioStar 1202.
Corresponding to flashrom svn r256 and coreboot v2 svn r3364.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Lyos Gemini Norezel <lyos.gemininorezel@gmail.com>
diff --git a/board_enable.c b/board_enable.c
index 1282b08..82eb541 100644
--- a/board_enable.c
+++ b/board_enable.c
@@ -515,6 +515,32 @@
}
/**
+ * Suited for:
+ * - BioStar P4M80-M4: Intel P4 + VIA P4M800 + VT8237
+ */
+static int board_biostar_p4m80_m4(const char *name)
+{
+ /* enter IT87xx conf mode */
+ OUTB(0x87, 0x2e);
+ OUTB(0x01, 0x2e);
+ OUTB(0x55, 0x2e);
+ OUTB(0x55, 0x2e);
+
+ /* select right flash chip */
+ wbsio_mask(0x2e, 0x22, 0x80, 0x80);
+
+ /* bit 3: flash chip write enable
+ * bit 7: map flash chip at 1MB-128K (why though? ignoring this.)
+ */
+ wbsio_mask(0x2e, 0x24, 0x04, 0x04);
+
+ /* exit IT87xx conf mode */
+ wbsio_write(0x2, 0x2e, 0x2);
+
+ return 0;
+}
+
+/**
* We use 2 sets of IDs here, you're free to choose which is which. This
* is to provide a very high degree of certainty when matching a board on
* the basis of subsystem/card IDs. As not every vendor handles
@@ -584,6 +610,8 @@
"artecgroup", "dbe62", "Artec Group DBE62", board_artecgroup_dbe6x},
{0x8086, 0x27b8, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
"kontron", "986lcd-m", "Kontron 986LCD-M", board_kontron_986lcd_m},
+ {0x1106, 0x3149, 0x1565, 0x3206, 0x1106, 0x3344, 0x1565, 0x1202,
+ NULL, NULL, "BioStar P4M80-M4", board_biostar_p4m80_m4},
{0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL} /* Keep this */
};