From 8854d30d6edb0e4e7f73cd2ab72b7cec78556846 Mon Sep 17 00:00:00 2001
From: Li-Ta Lo <ollie@lanl.gov>
Date: Mon, 3 Apr 2006 22:20:05 +0000
Subject: did I commit the last change? try to fix 0x10000026

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2235 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
---
 src/northbridge/amd/gx2/northbridge.c | 29 +++++++++++++++++++++++++----
 src/northbridge/amd/gx2/pll_reset.c   | 11 -----------
 src/northbridge/amd/gx2/raminit.c     | 13 -------------
 3 files changed, 25 insertions(+), 28 deletions(-)

(limited to 'src/northbridge/amd')

diff --git a/src/northbridge/amd/gx2/northbridge.c b/src/northbridge/amd/gx2/northbridge.c
index 85961f48b7..fb3cb1c1e0 100644
--- a/src/northbridge/amd/gx2/northbridge.c
+++ b/src/northbridge/amd/gx2/northbridge.c
@@ -155,11 +155,16 @@ setup_gx2_cache(void)
 	wbinvd();
 	return sizembytes;
 }
+
+#define SMM_OFFSET 0x40400000
+#define SMM_SIZE   256
+
 /* we have to do this here. We have not found a nicer way to do it */
 void
 setup_gx2(void)
 {
 	int i;
+	unsigned long tmp, tmp2, tmp3;
 	msr_t msr;
 	unsigned long sizem, membytes;
 
@@ -169,10 +174,10 @@ setup_gx2(void)
 
 	/* we need to set 0x10000028 and 0x40000029 */
 	printk_debug("sizem 0x%x, membytes 0x%x\n", sizem, membytes);
-	msr.hi = 0x20000000 | membytes >>24;
+	msr.hi = 0x20000000 | membytes>>24;
 	msr.lo = 0x100 | ( ((membytes >>12) & 0xfff) << 20);
 	wrmsr(0x10000028, msr);
-	msr.hi = 0x20000000 | membytes >>24;
+	msr.hi = 0x20000000 | membytes>>24;
 	msr.lo = 0x100 | ( ((membytes >>12) & 0xfff) << 20);
 	wrmsr(0x40000029, msr);
 	msr = rdmsr(0x10000028);
@@ -181,6 +186,22 @@ setup_gx2(void)
 	printk_debug("MSR 0x%x is now 0x%x:0x%x\n", 0x40000029, msr.hi,msr.lo);
 
 
+	/* fixme: SMM MSR 0x10000026 and 0x400000023 */
+	/* calculate the OFFSET field */
+	tmp = membytes - SMM_OFFSET;
+	tmp >>= 12;
+	tmp <<= 8;
+	tmp |= 0x20000000;
+	tmp |= (SMM_OFFSET >> 24);
+
+	/* calculate the PBASE and PMASK fields */
+	tmp2 = (SMM_OFFSET << 8) & 0xFFF00000; /* shift right 12 then left 20  == left 8 */
+	tmp2 |= (((~(SMM_SIZE * 1024) + 1) >> 12) & 0xfffff);
+	printk_debug("MSR 0x%x is now 0x%x:0x%x\n", 0x10000026, tmp, tmp2);
+	msr.hi = tmp;
+	msr.lo = tmp2;
+	wrmsr(0x10000026, msr);
+
 	/* now do the default MSR values */
 	for(i = 0; msr_defaults[i].msr_no; i++) {
 		msr_t msr;
@@ -383,11 +404,11 @@ static void enable_dev(struct device *dev)
 		cpubug();	
 		setup_gx2();
 		/* do this here for now -- this chip really breaks our device model */
+		setup_realmode_idt();
 		do_vsmbios();
 		dev->ops = &pci_domain_ops;
 		pci_set_method(dev);
-        }
-        else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
+        } else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
 
 		printk_debug("DEVICE_PATH_APIC_CLUSTER\n");
                 dev->ops = &cpu_bus_ops;
diff --git a/src/northbridge/amd/gx2/pll_reset.c b/src/northbridge/amd/gx2/pll_reset.c
index e1696fd703..ea54c49277 100644
--- a/src/northbridge/amd/gx2/pll_reset.c
+++ b/src/northbridge/amd/gx2/pll_reset.c
@@ -86,17 +86,6 @@ static const unsigned char fbdiv2plldiv[] = {
 	49, 40, 19, 59, 32, 54, 35,  0, 41, 60, 55,  0, 61,  0,  0,  0
 };
 
-static const unsigned char pci33_sdr_crt [] = {
-	/* FbDIV, VDIV, MDIV		   CPU/GeodeLink */
-	      12,    2,    4,		// 200/100
-	      16,    2,    4,		// 266/133
-              18,    2,    5,		// 300/120
-              20,    2,    5,		// 333/133
-              22,    2,    6,		// 366/122
-              24,    2,    6,		// 400/133
-              26,    2,    6            // 433/144
-};
-
 static const unsigned char pci33_ddr_crt [] = {
 	/* FbDIV, VDIV, MDIV		   CPU/GeodeLink */
 	     12,    2,    3,		// 200/133
diff --git a/src/northbridge/amd/gx2/raminit.c b/src/northbridge/amd/gx2/raminit.c
index f0156c3183..636c60b9d2 100644
--- a/src/northbridge/amd/gx2/raminit.c
+++ b/src/northbridge/amd/gx2/raminit.c
@@ -4,19 +4,6 @@ static void sdram_set_registers(const struct mem_controller *ctrl)
 {
 }
 
-#if 0
-static void sdram_set_spd_registers(const struct mem_controller *ctrl) 
-{
-	msr_t mst;
-	unsigned char val;
-
-	/* get module banks per dimm, SPD byte 5 */
-	val = spd_read_byte(0xA0, 5);
-	if (val < 1 || val > 2)
-		print_err("Module banks per dimm");
-
-}
-#endif
 /* Section 6.1.3, LX processor databooks, BIOS Initialization Sequence
  * Section 4.1.4, GX/CS5535 GeodeROM Porting guide */
 static void sdram_enable(int controllers, const struct mem_controller *ctrl)
-- 
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