more changes from via. Let's hope they work ...

romimages/RON_VIA_SPD/crt0.S

@@ -1,3 +1,6 @@
+/* 
+   v1.0 02/15/2001: To add "afteram.inc" file after test dram.
+*/ 
 /*
  * $ $
  *
@@ -52,6 +55,8 @@
 
 	CALLSP(ramtest)
 #endif	
+
+#include <northbridge/via/vt8601/afteram.inc>
 /*
  *	Copy data into RAM and clear the BSS. Since these segments
  *	isn't really that big we just copy/clear using bytes, not

src/northbridge/via/vt8601/afteram.inc

@@ -0,0 +1,50 @@
+/* 
+   v1.0: 02/15/2001: Program procedure to make workable and stable register settings:
+         (1) Initial registers: 0x40:0x48, 0x41:0x4d, 0x43:0x44, 0x44:0x04, 0x83:0x02, 0x3e:0x0c
+   v1.1: 02/15/2001: 
+	(1) Initial registers: To add 0x3e:0x0c 
+	(2) After initial: To add bus0, devfn0 0x84:0xc0
+   v1.2: 02/15/2001:
+	To set 0x13 register to 0xd8 value, thus it won't hang the system if enable graphic aperture(0x88 bit 2). But 
+	I am not sure if it would take effect for graphic device. According to the result, the system won't hang and check
+	the register setting, that's right, they do set those values except the aperture base(0x13) has been changed to 0x84
+	which means the pci configure does the resource allocation. But why it won't start up the monitor??? 
+*/
+
+jmp   ptp_afteram_set_registers
+
+ptp_afteram_table: 
+	.byte 0x40, 0x48
+	.byte 0x41, 0x4d
+	.byte 0x43, 0x44
+	.byte 0x44, 0x04
+	.byte 0x83, 0x02
+	.byte 0x3e, 0x0c
+	.byte 0x0 /* end of table */
+
+ptp_afteram_set_registers:
+	/* standard x86 loop on table until done code */
+	/* assumes that: devfn is 8 (safe on anything we've seen) */
+	/* which means addresses are a byte */
+	/* address is first, then data */
+	movl	$ptp_afteram_table, %esi
+1: 
+	/* zero out eax. This is a must right here. */
+	xor	%eax, %eax
+	movb	(%esi), %al
+	testb 	%al, %al
+	jz	done_ptp_afteram_set_registers
+	inc	%esi
+	orl     $0x0800, %eax
+	movb	(%esi), %dl
+	PCI_WRITE_CONFIG_BYTE
+	inc %esi
+	jmp 1b
+
+done_ptp_afteram_set_registers:	
+	CS_WRITE($0x13, $0xd8)
+	CS_WRITE($0x84, $0xc0)
+	CS_WRITE($0x80, $0x0f)
+	CS_WRITE($0x88, $0x02)
+	intel_chip_post_macro(0x99)
+

src/northbridge/via/vt8601/northbridge.c

@@ -1,5 +1,7 @@
 #include <printk.h>
 #include <pci.h>
+#include <pciconf.h>
+
 
 unsigned long sizeram()
 {
@@ -7,6 +9,7 @@ unsigned long sizeram()
 	unsigned char bank, mem, prevmem;
 	// fix me later -- there are two more banks at 0x56 and 0x57
 	unsigned long firstbank = 0x5a, lastbank = 0x5f;
+	u8 sma_status, sma_size, sma_size_bits;	
 	
         struct pci_dev *pcidev;
 
@@ -15,12 +18,22 @@ unsigned long sizeram()
 	if (! pcidev)
 		return 0;
 
+	pci_read_config_byte(pcidev, 0xfb, &sma_status);
+	sma_size_bits = (sma_status >> 4) & 0x03;
+	if (sma_size_bits > 3)
+		sma_size = 0;
+	else
+		sma_size = 0x01 << sma_size_bits;
+
 	for(totalmem = mem = prevmem = 0, bank = firstbank; 
 	    bank <= lastbank; bank++) {
 		pci_read_config_byte(pcidev, bank, &mem);
-		totalmem += (mem - prevmem) * 8 * 1024;
+		totalmem += (mem - prevmem) * 8;
 		prevmem = mem;
 	}
+	
+	totalmem -= sma_size;
+	totalmem *= 1024;
 
 	printk("sizeram: returning 0x%x KB\n", totalmem);
 #if 0
@@ -31,3 +44,24 @@ unsigned long sizeram()
 #endif
 	return totalmem;
 }
+
+
+/*
+unsigned long sizeram()
+{
+	return 0;
+}
+*/
+
+#ifdef HAVE_FRAMEBUFFER
+void framebuffer_on()
+{
+	unsigned long devfn;
+	u16 command;
+
+	devfn = PCI_DEVFN(0, 1);
+	pcibios_read_config_word(0, devfn, 0x3e, &command);
+	command |= 0x08;
+	pcibios_write_config_word(0, devfn, 0x3e, command);
+}
+#endif

src/northbridge/via/vt8601/raminitspd.inc

@@ -41,6 +41,11 @@
 	(1) After SPD, set registers:
 		(1) Second to write and modify: 0x70:0xc0, or 0x71:08-->0x71:88, 0x72:ec, 0x73:0c, 0x74:0x0e,
 			or 0x75:0x80-->0x75:0x81, or 0x76:0x80-->0x76:0xd6, or 0x79:0xf0-->0x79:0xf4, 0x7a:0x01
+  v1.5: 02/15/2001: To modify and add:
+	(1) Initial register: 0x81:0xc3
+            To add ptp table(bus0, devfn08) and program: 0x1c:0xf0, 0x20:0xf0, 0x21:0xff, 0x24:0xf0, 0x25:0xff, 0x34:0x80 	
+	(2) After SPD, set registers:
+		(1) Second to write: 0x0d:0x08, 0xac:0x6e
 
 */
 		
@@ -71,7 +76,7 @@ register_table:
 
 	.byte 0x50, 0xfe
 	.byte 0x51, 0xdf
-	.byte 0x52, 0xc8
+	.byte 0x52, 0xc8 
 	.byte 0x53, 0x98
 	.byte 0xf8, 0x22
 	.byte 0xf9, 0x42
@@ -114,8 +119,20 @@ register_table:
 	.byte 0x75, 0x80
 	.byte 0x76, 0x80
 	.byte 0x79, 0xf0
+
+	.byte 0x81, 0xc3
 	.byte 0x0 /* end of table */
-ram_set_registers: 
+
+ptp_table:
+	.byte 0x1c, 0xf0
+	.byte 0x20, 0xf0
+	.byte 0x21, 0xff
+	.byte 0x24, 0xf0
+	.byte 0x25, 0xff
+	.byte 0x34, 0x80
+	.byte 0x0
+
+ram_set_registers:
 	/* standard x86 loop on table until done code */
 	/* assumes that: devfn is 0 (safe on anything we've seen) */
 	/* which means addresses are a byte */
@@ -126,13 +143,27 @@ ram_set_registers:
 	xor	%eax, %eax
 	movb	(%esi), %al
 	testb 	%al, %al
-	jz	done_ram_set_registers
+//	jz	done_ram_set_registers
+	jz 	ptp
 	inc	%esi
 	movb	(%esi), %dl
 	PCI_WRITE_CONFIG_BYTE
 	inc %esi
 	jmp 1b
 
+ptp:	movl	$ptp_table, %esi
+2:
+	/* zero out eax. This is a must right here. */
+	xor	%eax, %eax
+	movb	(%esi), %al
+	testb 	%al, %al
+	jz	done_ram_set_registers
+	inc	%esi
+	orl 	$0x0800, %eax 
+	movb	(%esi), %dl
+	PCI_WRITE_CONFIG_BYTE
+	inc %esi
+	jmp 2b
 	// I forget why we need this, but we do
 
 	mov $0xa55a5aa5, %eax
@@ -314,7 +345,9 @@ spd_set_nbxcfg_done:
 	orb $0x04, %dl        ; \
 	movl $0x79, %eax      ; \
 	PCI_WRITE_CONFIG_BYTE ; \
-	CS_WRITE($0x7a, $0x01)  
+	CS_WRITE($0x7a, $0x01) ; \
+	CS_WRITE($0x0d, $0x08) ; \
+	CS_WRITE($0xac, $0x6e) 
 
 //	CS_WRITE($0x6d, $0x21) ; \
 //	CS_WRITE($0x84, $0xc0)