vga support for 8601

src/mainboard/supermicro/x5dae/example-fallback.config

@@ -2,7 +2,7 @@
 ## This is relative to where the configuration file resides in the filesystem
 target ./fallback
 
-mainboard supermicro/x5dpr
+mainboard supermicro/x5dae
 
 ## Build a fallback not a normal image.
 option USE_FALLBACK_IMAGE=1

src/mainboard/supermicro/x5dae/example-normal.config

@@ -2,7 +2,7 @@
 ## This is relative to where the configuration file resides in the filesystem
 target ./normal
 
-mainboard supermicro/x5dpr
+mainboard supermicro/x5dae
 
 ## Build a normal not a fallback image.
 option USE_FALLBACK_IMAGE=0

src/mainboard/via/epia/Config

@@ -6,6 +6,7 @@ ldscript cpu/i386/entry32.lds
 mainboardinit cpu/i386/reset16.inc
 ldscript cpu/i386/reset16.lds
 
+option VGA_HARDWARE_FIXUP=1
 mainboardinit superio/via/vt8231/setup_ethernet.inc
 mainboardinit superio/via/vt8231/setup_serial.inc
 mainboardinit pc80/serial.inc

src/mainboard/via/epia/mainboard.c

@@ -2,9 +2,18 @@
 #include <pci.h>
 #include <pci_ids.h>
 #include <cpu/p5/io.h>
+#include <pc80/vga.h>
 
 #include <types.h>
 
+void northbridge_fixup();
+void southbridge_fixup();
+void video_init();
+void nvram_on();
+void keyboard_on();
+void pci_assign_irqs(unsigned bus, unsigned slot, const unsigned char pIntAtoD[4]);
+
+
 static const unsigned char southbridgeIrqs[4] = { 11, 5, 10, 12 };
 static const unsigned char enetIrqs[4] = { 11, 5, 10, 12 };
 static const unsigned char slotIrqs[4] = { 5, 10, 12, 11 };
@@ -65,6 +74,15 @@ final_southbridge_fixup()
 
 	nvram_on();
 	keyboard_on();
+	southbridge_fixup();
+
+#ifdef VIDEO_CONSOLE
+	vga_hardware_fixup();
+	// this has to be done here due to pci not always being up
+	// earlier and pci resources are not ready
+	video_init();
+#endif
+
 	pci_routing_fixup();
 }
 

src/northbridge/via/vt8601/Config

@@ -1 +1,2 @@
 object northbridge.o
+object via_vga.o VIDEO_CONSOLE

src/northbridge/via/vt8601/vgainit.inc

@@ -21,3 +21,32 @@ CS_WRITE($0xfb, $FBREG) // VGA enable
 
 #endif
 
+#if VIDEO_CONSOLE
+
+/*
+ * by Steve M. Gehlbach, Ph.D.
+ * steve @ kesa . com
+ *
+ * 9/7/03 smg
+ * minor chipset settings for vga
+ * more work needed for init, since reboot
+ * from linux has problems (hdwr reset okay)
+ *
+ */
+	// set shadow ram to award settings
+
+	CS_WRITE($0x61, $0x2a)
+	CS_WRITE($0x62, $0x00)
+	CS_WRITE($0x63, $0x20)
+
+	// turn off GA
+	
+	CS_WRITE($0x88,$0x00)
+
+	// enable vga, fb
+
+	CS_WRITE($0xF9,$0x42)
+	CS_WRITE($0xFB,$0xb0)
+
+#endif
+

src/northbridge/via/vt8601/via_vga.c

@@ -0,0 +1,168 @@
+/*
+ *
+ * By 
+ * Steve M. Gehlbach <steve @ kesa . com>
+ * 
+ * vga initialization specific for 
+ * via vt8601 chipset
+ *
+ * The font load code follows technique used
+ * in the tiara project, which came from
+ * the Universal Talkware Boot Loader,
+ * http://www.talkware.net.
+ */
+
+#include <video_subr.h>
+#include <subr.h>
+#include <string.h>
+#include <pc80/vga.h>
+#include <cpu/p5/io.h>
+#include <subr.h>
+#include <printk.h>
+
+#define VGA_FONT_BASE 0xa0000;
+#define VGA_GRAFIX_BASE 0xa0000;
+#define CHAR_HEIGHT 16
+
+// splash_done is a global to avoid putting up splash screen twice.
+// Kind of a hack, but the problem is that the vga pci resources
+// are sometimes ready early, sort of, and the initial call to 
+// vga_hardware_fixup puts up the splash screen; then a later call
+// to it from hardware_main does it again; but this does not always 
+// happen, sometimes it fails the first call.  It is either a timing or initialization
+// problem that needs to be tracked down and fixed. Note that both calls (fixup) are necessary
+// since some vga boards are not ready early, but some are, and of course, the epia is sometimes ready
+// and sometimes not ready.
+//
+int splash_done = 0;
+
+extern unsigned char fontdata_8x16[];
+extern void beep (int msec);
+extern void udelay (int usec);
+
+// The screeninfo structure is in pc80/vga_load_regs.c and has the vga
+// parameters for screen size etc.
+// This is _not_ the struct used in the zero_page
+// for linux init.  It is only used for vga init.
+extern struct screeninfo vga_settings;
+
+// prototypes
+int vga_decode_var(struct screeninfo *var, struct vga_par *par);
+int vga_set_regs(struct vga_par *par);
+
+
+void vga_set_amode(void);
+void vga_set_gmode(void);
+void delay(int secs);
+void mdelay(int msecs);
+void vga_font_load(unsigned char *vidmem, unsigned char *font, int height, int num_chars);
+int vga_load_pcx( char * pcx_file, int pcx_file_length);
+
+void vt8601_video_init(void) {
+	int res;
+	u8 byte;
+	struct vga_par vga_params;
+
+
+	// convert the general vga parameters in screeninfo structure 
+	// to actual vga register settings
+
+	res = vga_decode_var(&vga_settings, &vga_params);
+	if ( res < 0 ) { post_code (0xFD); } //no error return for now
+
+	// enable vga system
+	outb(0x01, 0x3c3); // enable VGA
+
+	// write the registers
+	res = vga_set_regs( &vga_params );
+	if ( res < 0 ) { post_code(0xFE); } //no error return for now
+	byte = inb(MIS_R); // get 3c2 value by reading 3cc
+	outb(byte & ~0xc,MIS_W); // clear last bits to set 25Mhz clock
+
+	// enable epia extended regs
+	write_seq(0x92,0x11);
+	
+	// setup the video clocks
+	// -follows award settings
+	// not all of these are necessary
+	write_seq(0xbd,0x18);
+	write_seq(0xcc,0x19);
+	write_seq(0xff,0x1a);
+	write_seq(0xff,0x1b);
+	write_seq(0x46,0x1c);
+	write_seq(0xbf,0x1d);
+	write_seq(0xff,0x1e);
+	write_seq(0xcc,0x1f);
+	write_seq(0x04,0x20);
+	write_seq(0x4f,0x24);
+
+	// setup extended crtc regs
+	// -follows award settings
+	// not all of these are necessary
+	write_crtc(0x64,0x1f);
+	write_crtc(0x20,0x20);
+	write_crtc(0x0,0x21);
+	write_crtc(0x7,0x25);
+	write_crtc(0x4,0x29);
+	write_crtc(0x1f,0x2a);
+	write_crtc(0x0,0x2b);
+	write_crtc(0xdf,0x2f);
+	write_crtc(0x10,0x38);
+
+
+}
+
+#ifdef VGA_HARDWARE_FIXUP
+void vga_hardware_fixup(void) {
+	u8 *font_mem, *vga_mem, *pcx_file;
+	int *file_size;
+
+#ifdef PCX_FILE_LOCATION
+	pcx_file = (u8 *) PCX_FILE_LOCATION;
+#else
+	pcx_file = (u8 *) 0xfffe0000;
+#endif
+	file_size = (int *) pcx_file;
+
+	vga_mem = (u8 *) VGA_GRAFIX_BASE;
+	font_mem = (u8 *) VGA_FONT_BASE;
+
+	outb(0x01, 0x3b8); // enable VGA
+	outb(0x01, 0x3c3); // enable VGA
+	outb(0x08, 0x46e8); // enable VGA (does not appear to be used)
+
+	if (inb(0x3c3) != 1) {
+	    	printk_info("VGA not ready yet.\n");
+		return;
+	}
+	printk_info("Initializing vt8601 vga...");
+	post_code(0xa0);
+
+	vt8601_video_init();
+
+	printk_info("done.\n");
+
+#ifdef VIDEO_SHOW_LOGO
+	if (!splash_done) {
+		printk_debug("Setting graphics mode...\n");
+		vga_set_gmode(); // set graphics mode
+
+		//
+		// the pcx_file is in flash at an address set 
+		// in the config file with PCX_FILE_LOCATION
+		// the length of the file is at offset 0, file starts at 4
+		//
+
+		printk_debug("pcx file at %x length %d\n",&pcx_file[4], *file_size);
+		vga_load_pcx( &pcx_file[4], *file_size);
+		delay(VIDEO_SHOW_LOGO);
+	
+#endif
+		vga_set_amode();
+		vga_font_load(font_mem,fontdata_8x16,CHAR_HEIGHT,256);
+		splash_done++; // mark done
+		printk_debug("alpha mode set.\n");
+		post_code(0xa1);
+	}
+}
+#endif

util/config/epia800.config

@@ -0,0 +1,63 @@
+#
+# LinuxBIOS config file for: VIA epia mini-itx
+#
+
+target /usr/src/epia
+
+# via epia
+mainboard via/epia
+biosbase 0xffff0000
+
+# setup delay using TSC
+option CONFIG_UDELAY_TSC=1
+
+# Enable Serial Console for debugging
+option CONFIG_COMPRESS=0
+option SERIAL_CONSOLE=1
+option VIDEO_CONSOLE=1
+option TTYS0_BAUD=115200
+
+# For printk_debug, set level to 8
+# for printk_info, set level to 7
+#option DEFAULT_CONSOLE_LOGLEVEL=8
+#option DEFAULT_CONSOLE_LOGLEVEL=7
+option DEFAULT_CONSOLE_LOGLEVEL=6
+
+#option DEBUG=1
+
+option BOOT_IDE=1
+option IDE_BOOT_DRIVE=0
+#need to know size of partition table for ide
+#option ONE_TRACK=32
+option ONE_TRACK=63
+
+
+# the logo is displayed for VIDEO_SHOW_LOGO seconds.
+# Need to have to have a 128k rom since the logo image is at the
+# beginning (0xfffe0000)
+option VIDEO_SHOW_LOGO=10
+option ROM_IMAGE_SIZE=131072
+option PCX_FILE_LOCATION=0xfffe0000
+
+
+# Use 256KB Standard Flash as Normal BIOS 
+option RAMTEST=1
+
+linux /usr/src/linux
+commandline root=/dev/hda2 ro console=ttyS0,115200n8 console=tty1
+
+#
+# these actions put the pcx image file on the front of the bios.
+# the image size is placed in the first 4 bytes then the pcx file
+# important that ROM_IMAGE_SIZE be set to 128K or larger.
+# The logo file is called linuxbioslogo.pcx and is by default located at
+# src/pc80/linuxbioslogo.pcx.  
+# Change the variable LOGOFILE below if you want to use your own file.
+# See the file src/pc80/vga_load_pcx.c for details on the file format.
+#
+option LOGOFILE=$(TOP)/src/pc80/linuxbioslogo.pcx
+addaction linuxbios.rom dd if=$(LOGOFILE) of=linuxbios.rom bs=1 seek=4 conv=notrunc;
+addaction linuxbios.rom perl -e '@a=stat "$(LOGOFILE)";$$a=pack("L",$$a[7]); print $$a' | dd of=linuxbios.rom bs=1 conv=notrunc
+
+# copy to home dir where flash programmer can reach.
+addaction linuxbios.rom /bin/cp -f linuxbios.rom $(HOME)/cti/software/bios/exp/linuxbios_epia.bin