epia-m support

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1655 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 54 insertions, 0 deletions

diff --git a/src/mainboard/via/epia-m/mainboard.c b/src/mainboard/via/epia-m/mainboard.c
index 747eb3eb7f..9597392593 100644
--- a/src/mainboard/via/epia-m/mainboard.c
+++ b/src/mainboard/via/epia-m/mainboard.c
@@ -9,6 +9,9 @@
 #include <device/chip.h>
 #include "chip.h"
 
+void vga_enable_console();
+
+
 static int
 mainboard_scan_bus(device_t root, int maxbus) 
 {
@@ -19,6 +22,56 @@ mainboard_scan_bus(device_t root, int maxbus)
 	return maxbus;
 }
 
+void vga_fixup(void) {
+        // we do this right here because:
+        // - all the hardware is working, and some VGA bioses seem to need
+        //   that
+        // - we need page 0 below for linuxbios tables.
+
+        printk_debug("INSTALL REAL-MODE IDT\n");
+        setup_realmode_idt();
+        printk_debug("DO THE VGA BIOS\n");
+        do_vgabios();
+        post_code(0x93);
+	vga_enable_console();
+
+
+}
+ 
+void write_protect_vgabios(void)
+{
+ 	device_t dev;
+ 
+ 	printk_info("write_protect_vgabios\n");
+ 	dev = dev_find_device(PCI_VENDOR_ID_VIA, 0x3123, 0);
+ 	if(dev)
+ 		pci_write_config8(dev, 0x61, 0xaa);
+ 
+}
+
+static void
+enable(struct chip *chip, enum chip_pass pass)
+{
+
+        struct mainboard_tyan_s4882_config *conf = 
+		(struct mainboard_tyan_s4882_config *)chip->chip_info;
+
+        switch (pass) {
+		default: break;
+//		case CONF_PASS_PRE_CONSOLE:
+//		case CONF_PASS_PRE_PCI:
+		case CONF_PASS_POST_PCI:		
+//                case CONF_PASS_PRE_BOOT:
+//			if (conf->fixup_scsi)
+//        			onboard_scsi_fixup();
+//			if (conf->fixup_vga)
+//				vga_fixup();
+			printk_debug("mainboard fixup pass %d done\r\n",
+					pass);
+			break;
+	}
+
+}
 static struct device_operations mainboard_operations = {
 	.read_resources   = root_dev_read_resources,
 	.set_resources    = root_dev_set_resources,
@@ -41,5 +94,6 @@ static void enumerate(struct chip *chip)
 struct chip_control mainboard_via_epia_m_control = {
 	.enumerate = enumerate, 
 	.name      = "VIA EPIA-M mainboard ",
+	.enable = enable
 };