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authorStefan Reinauer <stepan@coresystems.de>2009-07-21 21:44:24 +0000
committerStefan Reinauer <stepan@openbios.org>2009-07-21 21:44:24 +0000
commit71a3d96bc487f66c84ac869a1215b8a4a4499bf2 (patch)
tree97704a40b61a3e8d1f40e3bd0f972b86182cbdaa
parent4da810bd53f3e47fe0c5de64b5cec0910237a022 (diff)
* drop ich7 include
* detect more i945 variants * raminit fixes * ACPI + PCIe updates Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4455 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat
-rw-r--r--src/northbridge/intel/i945/Config.lb3
-rw-r--r--src/northbridge/intel/i945/acpi.c74
-rw-r--r--src/northbridge/intel/i945/acpi/i945.asl51
-rw-r--r--src/northbridge/intel/i945/acpi/i945_hostbridge.asl107
-rw-r--r--src/northbridge/intel/i945/acpi/i945_igd.asl298
-rw-r--r--src/northbridge/intel/i945/early_init.c98
-rw-r--r--src/northbridge/intel/i945/i945.h2
-rw-r--r--src/northbridge/intel/i945/ich7.h142
-rw-r--r--src/northbridge/intel/i945/northbridge.c66
-rw-r--r--src/northbridge/intel/i945/raminit.c850
-rw-r--r--src/northbridge/intel/i945/raminit.h3
-rw-r--r--src/northbridge/intel/i945/rcven.c40
12 files changed, 1109 insertions, 625 deletions
diff --git a/src/northbridge/intel/i945/Config.lb b/src/northbridge/intel/i945/Config.lb
index 6b74fbe7c1..8a6fc214e8 100644
--- a/src/northbridge/intel/i945/Config.lb
+++ b/src/northbridge/intel/i945/Config.lb
@@ -22,5 +22,8 @@ uses CONFIG_HAVE_HIGH_TABLES
default CONFIG_HAVE_HIGH_TABLES=1
config chip.h
+
+object acpi.o
+
driver northbridge.o
driver gma.o
diff --git a/src/northbridge/intel/i945/acpi.c b/src/northbridge/intel/i945/acpi.c
new file mode 100644
index 0000000000..c5ecdc5700
--- /dev/null
+++ b/src/northbridge/intel/i945/acpi.c
@@ -0,0 +1,74 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <types.h>
+#include <string.h>
+#include <console/console.h>
+#include <arch/acpi.h>
+#include <arch/acpigen.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+unsigned long acpi_fill_mcfg(unsigned long current)
+{
+ device_t dev;
+ u32 pciexbar = 0;
+ u32 pciexbar_reg;
+ int max_buses;
+
+ dev = dev_find_device(0x8086, 0x27a0, 0);
+ if (!dev)
+ return current;
+
+ pciexbar_reg=pci_read_config32(dev, 0x48);
+
+ // MMCFG not supported or not enabled.
+ if (!(pciexbar_reg & (1 << 0)))
+ return current;
+
+ switch ((pciexbar_reg >> 1) & 3) {
+ case 0: // 256MB
+ pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
+ max_buses = 256;
+ break;
+ case 1: // 128M
+ pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
+ max_buses = 128;
+ break;
+ case 2: // 64M
+ pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
+ max_buses = 64;
+ break;
+ default: // RSVD
+ return current;
+ }
+
+ if (!pciexbar)
+ return current;
+
+ current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current,
+ pciexbar, 0x0, 0x0, max_buses - 1);
+
+ return current;
+}
+
+
diff --git a/src/northbridge/intel/i945/acpi/i945.asl b/src/northbridge/intel/i945/acpi/i945.asl
index e6ba95d00d..49986f9cef 100644
--- a/src/northbridge/intel/i945/acpi/i945.asl
+++ b/src/northbridge/intel/i945/acpi/i945.asl
@@ -26,35 +26,50 @@ Device (PDRC)
{
Name (_HID, EISAID("PNP0C02"))
Name (_UID, 1)
+
+ // This does not seem to work correctly yet - set values statically for
+ // now.
+
+ //Name (PDRS, ResourceTemplate() {
+ // Memory32Fixed(ReadWrite, 0x00000000, 0x00004000, RCRB) // RCBA
+ // Memory32Fixed(ReadWrite, 0x00000000, 0x00004000, MCHB) // MCHBAR
+ // Memory32Fixed(ReadWrite, 0x00000000, 0x00001000, DMIB) // DMIBAR
+ // Memory32Fixed(ReadWrite, 0x00000000, 0x00001000, EGPB) // EPBAR
+ // Memory32Fixed(ReadWrite, 0x00000000, 0x00000000, PCIE) // PCIE BAR
+ // Memory32Fixed(ReadWrite, 0xfed20000, 0x00070000, ICHB) // Misc ICH
+ //})
+
Name (PDRS, ResourceTemplate() {
- Memory32Fixed(ReadWrite, 0x00000000, 0x00004000, RCRB) // RCBA
- Memory32Fixed(ReadWrite, 0x00000000, 0x00004000, MCHB) // MCHBAR
- Memory32Fixed(ReadWrite, 0x00000000, 0x00001000, DMIB) // DMIBAR
- Memory32Fixed(ReadWrite, 0x00000000, 0x00001000, EGPB) // EPBAR
- Memory32Fixed(ReadWrite, 0x00000000, 0x00000000, PCIE) // PCIE BAR
- Memory32Fixed(ReadWrite, 0xfed20000, 0x00070000, ICHB) // Misc ICH
+ Memory32Fixed(ReadWrite, 0xfed1c000, 0x00004000) // RCBA
+ Memory32Fixed(ReadWrite, 0xfed14000, 0x00004000) // MCHBAR
+ Memory32Fixed(ReadWrite, 0xfed18000, 0x00001000) // DMIBAR
+ Memory32Fixed(ReadWrite, 0xfed19000, 0x00001000) // EPBAR
+ Memory32Fixed(ReadWrite, 0xf0000000, 0x04000000) // PCIE BAR
+ Memory32Fixed(ReadWrite, 0xfed20000, 0x00020000) // Misc ICH
+ Memory32Fixed(ReadWrite, 0xfed40000, 0x00005000) // Misc ICH
+ Memory32Fixed(ReadWrite, 0xfed45000, 0x0004b000) // Misc ICH
})
// Current Resource Settings
Method (_CRS, 0, Serialized)
{
- CreateDwordField(PDRS, ^RCRB._BAS, RBR0)
- ShiftLeft(\_SB.PCI0.LPCB.RCBA, 14, RBR0)
+ //CreateDwordField(PDRS, ^RCRB._BAS, RBR0)
+ //ShiftLeft(\_SB.PCI0.LPCB.RCBA, 14, RBR0)
- CreateDwordField(PDRS, ^MCHB._BAS, MBR0)
- ShiftLeft(\_SB.PCI0.MCHC.MHBR, 14, MBR0)
+ //CreateDwordField(PDRS, ^MCHB._BAS, MBR0)
+ //ShiftLeft(\_SB.PCI0.MCHC.MHBR, 14, MBR0)
- CreateDwordField(PDRS, ^DMIB._BAS, DBR0)
- ShiftLeft(\_SB.PCI0.MCHC.DMBR, 12, DBR0)
+ //CreateDwordField(PDRS, ^DMIB._BAS, DBR0)
+ //ShiftLeft(\_SB.PCI0.MCHC.DMBR, 12, DBR0)
- CreateDwordField(PDRS, ^EGPB._BAS, EBR0)
- ShiftLeft(\_SB.PCI0.MCHC.EPBR, 12, EBR0)
+ //CreateDwordField(PDRS, ^EGPB._BAS, EBR0)
+ //ShiftLeft(\_SB.PCI0.MCHC.EPBR, 12, EBR0)
- CreateDwordField(PDRS, ^PCIE._BAS, PBR0)
- ShiftLeft(\_SB.PCI0.MCHC.PXBR, 26, PBR0)
+ //CreateDwordField(PDRS, ^PCIE._BAS, PBR0)
+ //ShiftLeft(\_SB.PCI0.MCHC.PXBR, 26, PBR0)
- CreateDwordField(PDRS, ^PCIE._LEN, PSZ0)
- ShiftLeft(0x10000000, \_SB.PCI0.MCHC.PXSZ, PSZ0)
+ //CreateDwordField(PDRS, ^PCIE._LEN, PSZ0)
+ //ShiftLeft(0x10000000, \_SB.PCI0.MCHC.PXSZ, PSZ0)
Return(PDRS)
}
diff --git a/src/northbridge/intel/i945/acpi/i945_hostbridge.asl b/src/northbridge/intel/i945/acpi/i945_hostbridge.asl
index 01f04b8162..d889b38524 100644
--- a/src/northbridge/intel/i945/acpi/i945_hostbridge.asl
+++ b/src/northbridge/intel/i945/acpi/i945_hostbridge.asl
@@ -35,18 +35,18 @@ Device (MCHC)
, 11, //
EPBR, 20, // EPBAR
- Offset (0x48), // MCHBAR
+ Offset (0x44), // MCHBAR
MHEN, 1, // Enable
, 13, //
MHBR, 18, // MCHBAR
- Offset (0x60), // PCIe BAR
+ Offset (0x48), // PCIe BAR
PXEN, 1, // Enable
PXSZ, 2, // BAR size
, 23, //
PXBR, 6, // PCIe BAR
- Offset (0x68), // DMIBAR
+ Offset (0x4c), // DMIBAR
DMEN, 1, // Enable
, 11, //
DMBR, 20, // DMIBAR
@@ -87,11 +87,13 @@ Device (MCHC)
, 2,
PM6H, 2,
, 2,
- Offset (0xa2), // Top of upper used dram
- TUUD, 16,
- Offset (0xb0),
- , 4,
- TLUD, 12 // TOLUD
+
+ Offset (0x9c), // Top of Low Used Memory
+ , 3,
+ TLUD, 5,
+
+ Offset (0xa0), // Top of Used Memory
+ TOM, 16,
}
}
@@ -172,11 +174,29 @@ Method (_CRS, 0, Serialized)
0x00000000, 0x000dc000, 0x000dffff, 0x00000000,
0x00004000,,, OPR7)
- // Bios Extension (0xe0000-0xeffff)
+ // BIOS Extension (0xe0000-0xe3fff)
+ DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ Cacheable, ReadWrite,
+ 0x00000000, 0x000e0000, 0x000e3fff, 0x00000000,
+ 0x00004000,,, ESG0)
+
+ // BIOS Extension (0xe4000-0xe7fff)
DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
- 0x00000000, 0x000e0000, 0x000effff, 0x00000000,
- 0x00010000,,, ESEG)
+ 0x00000000, 0x000e4000, 0x000e7fff, 0x00000000,
+ 0x00004000,,, ESG1)
+
+ // BIOS Extension (0xe8000-0xebfff)
+ DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ Cacheable, ReadWrite,
+ 0x00000000, 0x000e8000, 0x000ebfff, 0x00000000,
+ 0x00004000,,, ESG2)
+
+ // BIOS Extension (0xec000-0xeffff)
+ DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ Cacheable, ReadWrite,
+ 0x00000000, 0x000ec000, 0x000effff, 0x00000000,
+ 0x00004000,,, ESG3)
// System BIOS (0xf0000-0xfffff)
DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
@@ -189,6 +209,12 @@ Method (_CRS, 0, Serialized)
Cacheable, ReadWrite,
0x00000000, 0x00000000, 0xfebfffff, 0x00000000,
0x00000000,,, PM01)
+
+ // TPM Area (0xfed40000-0xfed44fff)
+ DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ Cacheable, ReadWrite,
+ 0x00000000, 0xfed40000, 0xfed44fff, 0x00000000,
+ 0x00000000,,, TPMR)
})
// Find PCI resource area in MCRS
@@ -197,64 +223,15 @@ Method (_CRS, 0, Serialized)
CreateDwordField(MCRS, PM01._LEN, PLEN)
// Fix up PCI memory region:
- // Enter actual TOLUD. The TOLUD register contains bits 20-31 of
+ // Enter actual TOLUD. The TOLUD register contains bits 27-31 of
// the top of memory address.
- ShiftLeft (^MCHC.TLUD, 20, PMIN)
+ ShiftLeft (^MCHC.TLUD, 27, PMIN)
Add(Subtract(PMAX, PMIN), 1, PLEN)
Return (MCRS)
}
-// PCI Interrupt Routing
-Method(_PRT)
-{
- If (PICM) {
- Return (Package() {
- // PCIe Graphics 0:1.0
- Package() { 0x0001ffff, 0, 0, 16 },
- // Onboard graphics (IGD) 0:2.0
- Package() { 0x0002ffff, 0, 0, 16 },
- // High Definition Audio 0:1b.0
- Package() { 0x001bffff, 0, 0, 16 },
- // PCIe Root Ports 0:1c.x
- Package() { 0x001cffff, 0, 0, 16 },
- Package() { 0x001cffff, 1, 0, 17 },
- Package() { 0x001cffff, 2, 0, 18 },
- Package() { 0x001cffff, 3, 0, 19 },
- // USB and EHCI 0:1d.x
- Package() { 0x001dffff, 0, 0, 23 },
- Package() { 0x001dffff, 1, 0, 19 },
- Package() { 0x001dffff, 2, 0, 18 },
- Package() { 0x001dffff, 3, 0, 16 },
- // LPC device 0:1f.0
- Package() { 0x001fffff, 0, 0, 19 },
- Package() { 0x001fffff, 1, 0, 19},
- Package() { 0x001fffff, 2, 0, 19 },
- Package() { 0x001fffff, 3, 0, 16 }
- })
- } Else {
- Return (Package() {
- // PCIe Graphics 0:1.0
- Package() { 0x0001ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 },
- // Onboard graphics (IGD) 0:2.0
- Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 },
- // High Definition Audio 0:1b.0
- Package() { 0x001bffff, 0, \_SB.PCI0.LPCB.LNKG, 0 },
- // PCIe Root Ports 0:1c.x
- Package() { 0x001cffff, 0, \_SB.PCI0.LPCB.LNKB, 0 },
- Package() { 0x001cffff, 1, \_SB.PCI0.LPCB.LNKA, 0 },
- Package() { 0x001cffff, 2, \_SB.PCI0.LPCB.LNKC, 0 },
- Package() { 0x001cffff, 3, \_SB.PCI0.LPCB.LNKD, 0 },
- // USB and EHCI 0:1d.x
- Package() { 0x001dffff, 0, \_SB.PCI0.LPCB.LNKH, 0 },
- Package() { 0x001dffff, 1, \_SB.PCI0.LPCB.LNKD, 0 },
- Package() { 0x001dffff, 2, \_SB.PCI0.LPCB.LNKC, 0 },
- // LPC device 0:1f.0
- Package() { 0x001fffff, 0, \_SB.PCI0.LPCB.LNKD, 0 },
- Package() { 0x001fffff, 1, \_SB.PCI0.LPCB.LNKD, 0 },
- Package() { 0x001fffff, 2, \_SB.PCI0.LPCB.LNKD, 0 },
- Package() { 0x001fffff, 3, \_SB.PCI0.LPCB.LNKA, 0 }
- })
- }
+/* IRQ assignment is mainboard specific. Get it from mainboard ACPI code */
+Include ("acpi/i945_pci_irqs.asl")
+
-}
diff --git a/src/northbridge/intel/i945/acpi/i945_igd.asl b/src/northbridge/intel/i945/acpi/i945_igd.asl
index 37de874ceb..806ae5dd32 100644
--- a/src/northbridge/intel/i945/acpi/i945_igd.asl
+++ b/src/northbridge/intel/i945/acpi/i945_igd.asl
@@ -23,6 +23,302 @@ Device (GFX0)
{
Name (_ADR, 0x00020000)
- // TODO display switching etc
+ /* Display Output Switching */
+ Method (_DOS, 1)
+ {
+ /* Windows 2000 and Windows XP call _DOS to enable/disable
+ * Display Output Switching during init and while a switch
+ * is already active
+ */
+ Store (And(Arg0, 7), DSEN)
+ }
+
+ /* We try to support as many i945 systems as possible,
+ * so keep the number of DIDs flexible.
+ */
+ Method (_DOD, 0)
+ {
+ If (LEqual(NDID, 1)) {
+ Name(DOD1, Package() {
+ 0xffffffff
+ })
+ Store (Or(0x00010000, DID1), Index(DOD1, 0))
+ Return(DOD1)
+ }
+
+ If (LEqual(NDID, 2)) {
+ Name(DOD2, Package() {
+ 0xffffffff,
+ 0xffffffff
+ })
+ Store (Or(0x00010000, DID2), Index(DOD2, 0))
+ Store (Or(0x00010000, DID2), Index(DOD2, 1))
+ Return(DOD2)
+ }
+
+ If (LEqual(NDID, 3)) {
+ Name(DOD3, Package() {
+ 0xffffffff,
+ 0xffffffff,
+ 0xffffffff
+ })
+ Store (Or(0x00010000, DID3), Index(DOD3, 0))
+ Store (Or(0x00010000, DID3), Index(DOD3, 1))
+ Store (Or(0x00010000, DID3), Index(DOD3, 2))
+ Return(DOD3)
+ }
+
+ If (LEqual(NDID, 4)) {
+ Name(DOD4, Package() {
+ 0xffffffff,
+ 0xffffffff,
+ 0xffffffff,
+ 0xffffffff
+ })
+ Store (Or(0x00010000, DID4), Index(DOD4, 0))
+ Store (Or(0x00010000, DID4), Index(DOD4, 1))
+ Store (Or(0x00010000, DID4), Index(DOD4, 2))
+ Store (Or(0x00010000, DID4), Index(DOD4, 3))
+ Return(DOD4)
+ }
+
+ If (LGreater(NDID, 4)) {
+ Name(DOD5, Package() {
+ 0xffffffff,
+ 0xffffffff,
+ 0xffffffff,
+ 0xffffffff,
+ 0xffffffff
+ })
+ Store (Or(0x00010000, DID5), Index(DOD5, 0))
+ Store (Or(0x00010000, DID5), Index(DOD5, 1))
+ Store (Or(0x00010000, DID5), Index(DOD5, 2))
+ Store (Or(0x00010000, DID5), Index(DOD5, 3))
+ Store (Or(0x00010000, DID5), Index(DOD5, 4))
+ Return(DOD5)
+ }
+
+ /* Some error happened, but we have to return something */
+ Return (Package() {0x00000400})
+ }
+
+ Device(DD01)
+ {
+ /* Device Unique ID */
+ Method(_ADR, 0, Serialized)
+ {
+ If(LEqual(DID1, 0)) {
+ Return (1)
+ } Else {
+ Return (And(0xffff, DID1))
+ }
+ }
+
+ /* Device Current Status */
+ Method(_DCS, 0)
+ {
+ TRAP(1)
+ If (And(CSTE, 1)) {
+ Return (0x1f)
+ }
+ Return(0x1d)
+ }
+
+ /* Query Device Graphics State */
+ Method(_DGS, 0)
+ {
+ If (And(NSTE, 1)) {
+ Return(1)
+ }
+ Return(0)
+ }
+
+ /* Device Set State */
+ Method(_DSS, 1)
+ {
+ /* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+ * display switch was completed
+ */
+ If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+ Store (NSTE, CSTE)
+ }
+ }
+ }
+
+ Device(DD02)
+ {
+ /* Device Unique ID */
+ Method(_ADR, 0, Serialized)
+ {
+ If(LEqual(DID2, 0)) {
+ Return (2)
+ } Else {
+ Return (And(0xffff, DID2))
+ }
+ }
+
+ /* Device Current Status */
+ Method(_DCS, 0)
+ {
+ TRAP(1)
+ If (And(CSTE, 2)) {
+ Return (0x1f)
+ }
+ Return(0x1d)
+ }
+
+ /* Query Device Graphics State */
+ Method(_DGS, 0)
+ {
+ If (And(NSTE, 2)) {
+ Return(1)
+ }
+ Return(0)
+ }
+
+ /* Device Set State */
+ Method(_DSS, 1)
+ {
+ /* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+ * display switch was completed
+ */
+ If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+ Store (NSTE, CSTE)
+ }
+ }
+ }
+
+
+ Device(DD03)
+ {
+ /* Device Unique ID */
+ Method(_ADR, 0, Serialized)
+ {
+ If(LEqual(DID3, 0)) {
+ Return (3)
+ } Else {
+ Return (And(0xffff, DID3))
+ }
+ }
+
+ /* Device Current Status */
+ Method(_DCS, 0)
+ {
+ TRAP(1)
+ If (And(CSTE, 4)) {
+ Return (0x1f)
+ }
+ Return(0x1d)
+ }
+
+ /* Query Device Graphics State */
+ Method(_DGS, 0)
+ {
+ If (And(NSTE, 4)) {
+ Return(1)
+ }
+ Return(0)
+ }
+
+ /* Device Set State */
+ Method(_DSS, 1)
+ {
+ /* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+ * display switch was completed
+ */
+ If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+ Store (NSTE, CSTE)
+ }
+ }
+ }
+
+
+ Device(DD04)
+ {
+ /* Device Unique ID */
+ Method(_ADR, 0, Serialized)
+ {
+ If(LEqual(DID4, 0)) {
+ Return (4)
+ } Else {
+ Return (And(0xffff, DID4))
+ }
+ }
+
+ /* Device Current Status */
+ Method(_DCS, 0)
+ {
+ TRAP(1)
+ If (And(CSTE, 8)) {
+ Return (0x1f)
+ }
+ Return(0x1d)
+ }
+
+ /* Query Device Graphics State */
+ Method(_DGS, 0)
+ {
+ If (And(NSTE, 4)) {
+ Return(1)
+ }
+ Return(0)
+ }
+
+ /* Device Set State */
+ Method(_DSS, 1)
+ {
+ /* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+ * display switch was completed
+ */
+ If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+ Store (NSTE, CSTE)
+ }
+ }
+ }
+
+
+ Device(DD05)
+ {
+ /* Device Unique ID */
+ Method(_ADR, 0, Serialized)
+ {
+ If(LEqual(DID5, 0)) {
+ Return (5)
+ } Else {
+ Return (And(0xffff, DID5))
+ }
+ }
+
+ /* Device Current Status */
+ Method(_DCS, 0)
+ {
+ TRAP(1)
+ If (And(CSTE, 16)) {
+ Return (0x1f)
+ }
+ Return(0x1d)
+ }
+
+ /* Query Device Graphics State */
+ Method(_DGS, 0)
+ {
+ If (And(NSTE, 4)) {
+ Return(1)
+ }
+ Return(0)
+ }
+
+ /* Device Set State */
+ Method(_DSS, 1)
+ {
+ /* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+ * display switch was completed
+ */
+ If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+ Store (NSTE, CSTE)
+ }
+ }
+ }
+
}
diff --git a/src/northbridge/intel/i945/early_init.c b/src/northbridge/intel/i945/early_init.c
index a7b06b079d..5894bff5b1 100644
--- a/src/northbridge/intel/i945/early_init.c
+++ b/src/northbridge/intel/i945/early_init.c
@@ -25,7 +25,7 @@ static int i945_silicon_revision(void)
return pci_read_config8(PCI_DEV(0, 0x00, 0), PCI_CLASS_REVISION);
}
-static void i945_detect_chipset(void)
+static void i945m_detect_chipset(void)
{
u8 reg8;
@@ -33,19 +33,19 @@ static void i945_detect_chipset(void)
reg8 = (pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe7) & 0x70) >> 4;
switch (reg8) {
case 1:
- printk_info("Mobile Intel(R) 945GM/GME Express");
+ printk_info("Mobile Intel(R) 82945GM/GME Express");
break;
case 2:
- printk_info("Mobile Intel(R) 945GMS/GU Express");
+ printk_info("Mobile Intel(R) 82945GMS/GU Express");
break;
case 3:
- printk_info("Mobile Intel(R) 945PM Express");
+ printk_info("Mobile Intel(R) 82945PM Express");
break;
case 5:
- printk_info("Intel(R) 945GT Express");
+ printk_info("Intel(R) 82945GT Express");
break;
case 6:
- printk_info("Mobile Intel(R) 943/940GML Express");
+ printk_info("Mobile Intel(R) 82943/82940GML Express");
break;
default:
printk_info("Unknown (%02x)", reg8); /* Others reserved. */
@@ -87,6 +87,45 @@ static void i945_detect_chipset(void)
printk_debug("\n");
}
+static void i945_detect_chipset(void)
+{
+ u8 reg8;
+
+ printk_info("\nIntel(R) ");
+ reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0x8);
+ switch (reg8) {
+ case 0:
+ case 1:
+ printk_info("82945G");
+ break;
+ case 2:
+ printk_info("82945G/GZ/GC");
+ break;
+ case 0x80:
+ case 0x81:
+ case 0x82:
+ printk_info("82945P/PL");
+ break;
+ default:
+ printk_info("Unknown (%02x)", reg8); /* Others unknown. */
+ }
+ printk_info(" Chipset\n");
+
+ printk_debug("(G)MCH capable of ");
+ reg8 = (pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe4) & 0x07);
+ switch (reg8) {
+ case 0:
+ printk_debug("up to DDR2-667");
+ break;
+ case 3:
+ printk_debug("up to DDR2-533");
+ break;
+ default:
+ printk_info("unknown max. RAM clock (%02x).", reg8); /* Others reserved. */
+ }
+ printk_debug("\n");
+}
+
static void i945_setup_bars(void)
{
u8 reg8;
@@ -343,6 +382,7 @@ static void i945_setup_dmi_rcrb(void)
reg32 |= (2 << 12);
reg32 &= ~(7 << 15);
+
reg32 |= (2 << 15);
DMIBAR32(DMILCAP) = reg32;
@@ -350,7 +390,6 @@ static void i945_setup_dmi_rcrb(void)
reg32 &= 0x00ffffff;
reg32 &= ~(3 << 0);
reg32 |= (1 << 0);
-
reg32 &= ~(3 << 20);
reg32 |= (1 << 20);
@@ -379,8 +418,10 @@ static void i945_setup_dmi_rcrb(void)
DMIBAR32(0x204) = reg32;
if (pci_read_config8(PCI_DEV(0, 0x0, 0), 0x54) & ((1 << 4) | (1 << 3))) { /* DEVEN */
+ printk_debug("Internal graphics: enabled\n");
DMIBAR32(0x200) |= (1 << 21);
} else {
+ printk_debug("Internal graphics: disabled\n");
DMIBAR32(0x200) &= ~(1 << 21);
}
@@ -449,9 +490,10 @@ static void i945_setup_dmi_rcrb(void)
if ((MCHBAR32(0x214) & 0xf) != 0x3) {
printk_info
("DMI link requires A1 stepping workaround. Rebooting.\n");
- reg32 = MCHBAR32(MMARB1);
- reg32 &= 0xfffffff8;
- reg32 |= 3;
+ reg32 = DMIBAR32(0x224);
+ reg32 &= ~(7 << 0);
+ reg32 |= (3 << 0);
+ DMIBAR32(0x224) = reg32;
outb(0x06, 0xcf9);
for (;;) ; /* wait for reset */
}
@@ -463,7 +505,7 @@ static void i945_setup_pci_express_x16(void)
u32 timeout;
u32 reg32;
u16 reg16;
-#if SETUP_PCIE_X16_LINK
+
u8 reg8;
printk_debug("Enabling PCI Express x16 Link\n");
@@ -476,6 +518,10 @@ static void i945_setup_pci_express_x16(void)
reg32 &= ~(1 << 8);
pcie_write_config32(PCI_DEV(0, 0x01, 0), 0x208, reg32);
+ reg32 = pcie_read_config32(PCI_DEV(0, 0x01, 0), 0x224);
+ reg32 &= ~(1 << 8);
+ pcie_write_config32(PCI_DEV(0, 0x01, 0), 0x224, reg32);
+
MCHBAR16(UPMC1) &= ~( (1 << 5) | (1 << 0) );
/* Initialze PEG_CAP */
@@ -489,13 +535,15 @@ static void i945_setup_pci_express_x16(void)
*/
/* NOTE: SLOTCAP becomes RO after the first write! */
reg32 = pcie_read_config32(PCI_DEV(0, 0x01, 0), 0xb4);
- reg32 &= 0x0007ffff; // TODO
- reg32 &= 0xfffe007f; // TODO
+ reg32 &= 0x0007ffff;
+
+ reg32 &= 0xfffe007f;
+
pcie_write_config32(PCI_DEV(0, 0x01, 0), 0xb4, reg32);
/* Wait for training to succeed */
printk_debug("Wait for PCIe x16 link training ...");
- timeout = 0x7fffff;
+ timeout = 0x7fff;
while ((((pcie_read_config32(PCI_DEV(0, 0x01, 0), 0x214) >> 16) & 4) != 3) && --timeout) ;
if (!timeout) {
printk_debug("timeout!\n");
@@ -515,7 +563,7 @@ static void i945_setup_pci_express_x16(void)
pcie_write_config16(PCI_DEV(0, 0x01, 0), 0x3e, reg16);
printk_debug("Wait for PCIe x1 link training ...");
- timeout = 0x7fffff;
+ timeout = 0x7fff;
while ((((pcie_read_config32(PCI_DEV(0, 0x01, 0), 0x214) >> 16) & 4) != 3) && --timeout) ;
if (!timeout) {
printk_debug("timeout!\n");
@@ -531,11 +579,11 @@ static void i945_setup_pci_express_x16(void)
reg16 = pcie_read_config16(PCI_DEV(0, 0x01, 0), 0xb2);
reg16 >>= 4;
reg16 &= 0x3f;
-
+ /* reg16 == 1 -> x1; reg16 == 16 -> x16 */
printk_debug("PCIe x%d link training succeeded.\n", reg16);
reg32 = pcie_read_config32(PCI_DEV(0, 0x01, 0), 0x204);
- reg32 &= 0xfffffc00;
+ reg32 &= 0xfffffc00; /* clear [9:0] */
if (reg16 == 1) {
reg32 |= 0x32b;
// TODO
@@ -597,6 +645,10 @@ static void i945_setup_pci_express_x16(void)
reg32 |= (3 << 24);
pcie_write_config32(PCI_DEV(0, 0x01, 0), 0xf0, reg32);
+ reg32 = pcie_read_config32(PCI_DEV(0, 0x01, 0), 0xf0);
+ reg32 |= (1 << 5);
+ pcie_write_config32(PCI_DEV(0, 0x01, 0), 0xf0, reg32);
+
reg32 = pcie_read_config32(PCI_DEV(0, 0x01, 0), 0x200);
reg32 &= ~(3 << 26);
reg32 |= (2 << 26);
@@ -647,7 +699,6 @@ static void i945_setup_pci_express_x16(void)
return;
disable_pciexpress_x16_link:
-#endif
/* For now we just disable the x16 link */
printk_debug("Disabling PCI Express x16 Link\n");
@@ -750,7 +801,15 @@ static void ich7_setup_pci_express(void)
static void i945_early_initialization(void)
{
/* Print some chipset specific information */
- i945_detect_chipset();
+ switch (pci_read_config32(PCI_DEV(0, 0x00, 0), 0)) {
+ case 0x27708086:
+ i945_detect_chipset();
+ break;
+ case 0x27a08086:
+ case 0x27ac8086:
+ i945m_detect_chipset();
+ break;
+ }
/* Setup all BARs required for early PCIe and raminit */
i945_setup_bars();
@@ -778,3 +837,4 @@ static void i945_late_initialization(void)
i945_setup_root_complex_topology();
}
+
diff --git a/src/northbridge/intel/i945/i945.h b/src/northbridge/intel/i945/i945.h
index 78a0723dfb..f7f0ed7b77 100644
--- a/src/northbridge/intel/i945/i945.h
+++ b/src/northbridge/intel/i945/i945.h
@@ -20,7 +20,7 @@
#ifndef __NORTHBRIDGE_INTEL_I945_I945_H__
#define __NORTHBRIDGE_INTEL_I945_I945_H__ 1
-#include "ich7.h"
+#include "../../../southbridge/intel/i82801gx/i82801gx.h"
/* Device 0:0.0 PCI configuration space (Host Bridge) */
diff --git a/src/northbridge/intel/i945/ich7.h b/src/northbridge/intel/i945/ich7.h
deleted file mode 100644
index 5720d7c4b2..0000000000
--- a/src/northbridge/intel/i945/ich7.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2008 coresystems GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef __NORTHBRIDGE_INTEL_I945_ICH7_H__
-#define __NORTHBRIDGE_INTEL_I945_ICH7_H__ 1
-
-/* Southbridge IO BARs */
-/* TODO Make sure these don't get changed by stage2 */
-#define GPIOBASE 0x48
-#define DEFAULT_GPIOBASE 0x480
-
-#define PMBASE 0x40
-#define DEFAULT_PMBASE 0x500
-
-/* Root Complex Register Block */
-#define RCBA 0xf0
-#define DEFAULT_RCBA 0xfed1c000
-
-#define RCBA8(x) *((volatile u8 *)(DEFAULT_RCBA + x))
-#define RCBA16(x) *((volatile u16 *)(DEFAULT_RCBA + x))
-#define RCBA32(x) *((volatile u32 *)(DEFAULT_RCBA + x))
-
-#define VCH 0x0000 /* 32bit */
-#define VCAP1 0x0004 /* 32bit */
-#define VCAP2 0x0008 /* 32bit */
-#define PVC 0x000c /* 16bit */
-#define PVS 0x000e /* 16bit */
-
-#define V0CAP 0x0010 /* 32bit */
-#define V0CTL 0x0014 /* 32bit */
-#define V0STS 0x001a /* 16bit */
-
-#define V1CAP 0x001c /* 32bit */
-#define V1CTL 0x0020 /* 32bit */
-#define V1STS 0x0026 /* 16bit */
-
-#define RCTCL 0x0100 /* 32bit */
-#define ESD 0x0104 /* 32bit */
-#define ULD 0x0110 /* 32bit */
-#define ULBA 0x0118 /* 64bit */
-
-#define RP1D 0x0120 /* 32bit */
-#define RP1BA 0x0128 /* 64bit */
-#define RP2D 0x0130 /* 32bit */
-#define RP2BA 0x0138 /* 64bit */
-#define RP3D 0x0140 /* 32bit */
-#define RP3BA 0x0148 /* 64bit */
-#define RP4D 0x0150 /* 32bit */
-#define RP4BA 0x0158 /* 64bit */
-#define HDD 0x0160 /* 32bit */
-#define HDBA 0x0168 /* 64bit */
-#define RP5D 0x0170 /* 32bit */
-#define RP5BA 0x0178 /* 64bit */
-#define RP6D 0x0180 /* 32bit */
-#define RP6BA 0x0188 /* 64bit */
-
-#define ILCL 0x01a0 /* 32bit */
-#define LCAP 0x01a4 /* 32bit */
-#define LCTL 0x01a8 /* 16bit */
-#define LSTS 0x01aa /* 16bit */
-
-#define RPC 0x0224 /* 32bit */
-#define RPFN 0x0238 /* 32bit */
-
-#define TRSR 0x1e00 /* 8bit */
-#define TRCR 0x1e10 /* 64bit */
-#define TWDR 0x1e18 /* 64bit */
-
-#define IOTR0 0x1e80 /* 64bit */
-#define IOTR1 0x1e88 /* 64bit */
-#define IOTR2 0x1e90 /* 64bit */
-#define IOTR3 0x1e98 /* 64bit */
-
-#define TCTL 0x3000 /* 8bit */
-
-#define D31IP 0x3100 /* 32bit */
-#define D30IP 0x3104 /* 32bit */
-#define D29IP 0x3108 /* 32bit */
-#define D28IP 0x310c /* 32bit */
-#define D27IP 0x3110 /* 32bit */
-#define D31IR 0x3140 /* 16bit */
-#define D30IR 0x3142 /* 16bit */
-#define D29IR 0x3144 /* 16bit */
-#define D28IR 0x3146 /* 16bit */
-#define D27IR 0x3148 /* 16bit */
-#define OIC 0x31ff /* 8bit */
-
-#define RC 0x3400 /* 32bit */
-#define HPTC 0x3404 /* 32bit */
-#define GCS 0x3410 /* 32bit */
-#define BUC 0x3414 /* 32bit */
-#define FD 0x3418 /* 32bit */
-#define CG 0x341c /* 32bit */
-
-/* Function Disable (FD) register values.
- * Setting a bit disables the corresponding
- * feature.
- * Not all features might be disabled on
- * all chipsets. Esp. ICH-7U is picky.
- */
-#define FD_PCIE6 (1 << 21)
-#define FD_PCIE5 (1 << 20)
-#define FD_PCIE4 (1 << 19)
-#define FD_PCIE3 (1 << 18)
-#define FD_PCIE2 (1 << 17)
-#define FD_PCIE1 (1 << 16)
-#define FD_EHCI (1 << 15)
-#define FD_LPCB (1 << 14)
-
-/* UHCI must be disabled from 4 downwards.
- * If UHCI controllers get disabled, EHCI
- * must know about it, too! */
-#define FD_UHCI4 (1 << 11)
-#define FD_UHCI34 (1 << 10) | FD_UHCI4
-#define FD_UHCI234 (1 << 9) | FD_UHCI3
-#define FD_UHCI1234 (1 << 8) | FD_UHCI2
-
-#define FD_INTLAN (1 << 7)
-#define FD_ACMOD (1 << 6)
-#define FD_ACAUD (1 << 5)
-#define FD_HDAUD (1 << 4)
-#define FD_SMBUS (1 << 3)
-#define FD_SATA (1 << 2)
-#define FD_PATA (1 << 1)
-
-#endif
diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c
index c07a00c149..73b29abddf 100644
--- a/src/northbridge/intel/i945/northbridge.c
+++ b/src/northbridge/intel/i945/northbridge.c
@@ -28,9 +28,67 @@
#include <string.h>
#include <bitops.h>
#include <cpu/cpu.h>
+#include <boot/tables.h>
#include "chip.h"
#include "i945.h"
+int get_pcie_bar(u32 *base, u32 *len)
+{
+ device_t dev;
+ u32 pciexbar_reg;
+
+ *base = 0;
+ *len = 0;
+
+ dev = dev_find_slot(0, PCI_DEVFN(0, 0));
+ if (!dev)
+ return 0;
+
+ pciexbar_reg = pci_read_config32(dev, 0x48);
+
+ if (!(pciexbar_reg & (1 << 0)))
+ return 0;
+
+ switch ((pciexbar_reg >> 1) & 3) {
+ case 0: // 256MB
+ *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
+ *len = 256 * 1024 * 1024;
+ return 1;
+ case 1: // 128M
+ *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
+ *len = 128 * 1024 * 1024;
+ return 1;
+ case 2: // 64M
+ *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
+ *len = 64 * 1024 * 1024;
+ return 1;
+ }
+
+ return 0;
+}
+
+/* in arch/i386/boot/tables.c */
+extern uint64_t high_tables_base, high_tables_size;
+
+/* IDG memory */
+uint64_t uma_memory_base=0, uma_memory_size=0;
+
+int add_northbridge_resources(struct lb_memory *mem)
+{
+ u32 pcie_config_base, pcie_config_size;
+
+ printk_debug("Adding UMA memory area\n");
+ lb_add_memory_range(mem, LB_MEM_RESERVED,
+ uma_memory_base, uma_memory_size);
+
+ printk_debug("Adding PCIe config bar\n");
+ get_pcie_bar(&pcie_config_base, &pcie_config_size);
+ lb_add_memory_range(mem, LB_MEM_RESERVED,
+ pcie_config_base, pcie_config_size);
+
+ return 0;
+}
+
static void ram_resource(device_t dev, unsigned long index, unsigned long basek,
unsigned long sizek)
{
@@ -72,7 +130,6 @@ static uint32_t find_pci_tolm(struct bus *bus)
#define HIGH_TABLES_SIZE 64 // maximum size of high tables in KB
extern uint64_t high_tables_base, high_tables_size;
#endif
-uint64_t uma_memory_base=0, uma_memory_size=0;
static void pci_domain_set_resources(device_t dev)
{
@@ -81,7 +138,11 @@ static void pci_domain_set_resources(device_t dev)
uint16_t reg16;
unsigned long long tomk;
+ /* Can we find out how much memory we can use at most
+ * this way?
+ */
pci_tolm = find_pci_tolm(&dev->link[0]);
+ printk_debug("pci_tolm: 0x%x\n", pci_tolm);
printk_spew("Base of stolen memory: 0x%08x\n",
pci_read_config32(dev_find_slot(0, PCI_DEVFN(2, 0)), 0x5c));
@@ -200,10 +261,9 @@ static void mc_read_resources(device_t dev)
static void mc_set_resources(device_t dev)
{
- struct resource *resource, *last;
+ struct resource *resource;
/* Report the PCIe BAR */
- last = &dev->resource[dev->resources];
resource = find_resource(dev, 0xcf);
if (resource) {
report_resource_stored(dev, resource, "<mmconfig>");
diff --git a/src/northbridge/intel/i945/raminit.c b/src/northbridge/intel/i945/raminit.c
index 8fdec9462f..3084072389 100644
--- a/src/northbridge/intel/i945/raminit.c
+++ b/src/northbridge/intel/i945/raminit.c
@@ -1,7 +1,7 @@
/*
* This file is part of the coreboot project.
*
- * Copyright (C) 2007-2008 coresystems GmbH
+ * Copyright (C) 2007-2009 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -17,7 +17,6 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
#include <cpu/x86/mem.h>
#include <cpu/x86/mtrr.h>
#include <cpu/x86/cache.h>
@@ -25,7 +24,7 @@
#include "raminit.h"
#include "i945.h"
-#define DEBUG_RAM_SETUP
+#define DEBUG_RAM_SETUP
/* Debugging macros. */
#if defined(DEBUG_RAM_SETUP)
@@ -34,7 +33,6 @@
#define PRINTK_DEBUG(x...)
#endif
-
#define RAM_INITIALIZATION_COMPLETE (1 << 19)
#define RAM_COMMAND_SELF_REFRESH (0x0 << 16)
@@ -68,7 +66,6 @@ static void do_ram_command(u32 command)
PRINTK_DEBUG("...done\n");
}
-
static void ram_read32(u32 offset)
{
PRINTK_DEBUG(" ram read: %08x\n", offset);
@@ -94,7 +91,11 @@ static int sdram_capabilities_max_supported_memory_frequency(void)
{
u32 reg32;
- reg32 = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xe4);
+#ifdef MAXIMUM_SUPPORTED_FREQUENCY
+ return MAXIMUM_SUPPORTED_FREQUENCY;
+#endif
+
+ reg32 = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xe4);
reg32 &= (7 << 0);
switch (reg32) {
@@ -147,7 +148,7 @@ static int sdram_capabilities_enhanced_addressing_xor(void)
reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe5); /* CAPID0 + 5 */
reg8 &= (1 << 7);
-
+
return (!reg8);
}
@@ -157,7 +158,7 @@ static int sdram_capabilities_two_dimms_per_channel(void)
reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe8); /* CAPID0 + 8 */
reg8 &= (1 << 0);
-
+
return (reg8 != 0);
}
@@ -165,29 +166,48 @@ static int sdram_capabilities_MEM4G_disable(void)
{
u8 reg8;
- reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe5);
+ reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe5);
reg8 &= (1 << 0);
-
+
return (reg8 != 0);
}
+#define GFX_FREQUENCY_CAP_166MHZ 0x04
+#define GFX_FREQUENCY_CAP_200MHZ 0x03
+#define GFX_FREQUENCY_CAP_250MHZ 0x02
+#define GFX_FREQUENCY_CAP_ALL 0x00
+
+static int sdram_capabilities_core_frequencies(void)
+{
+ u8 reg8;
+
+ reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe5); /* CAPID0 + 5 */
+ reg8 &= (1 << 3) | (1 << 2) | (1 << 1);
+ reg8 >>= 1;
+
+ return (reg8);
+}
+
static void sdram_detect_errors(void)
{
u8 reg8;
+ u8 do_reset = 0;
reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2);
-
+
if (reg8 & ((1<<7)|(1<<2))) {
if (reg8 & (1<<2)) {
printk_debug("SLP S4# Assertion Width Violation.\n");
-
+
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa2, reg8);
+
}
if (reg8 & (1<<7)) {
printk_debug("DRAM initialization was interrupted.\n");
reg8 &= ~(1<<7);
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa2, reg8);
+ do_reset = 1;
}
/* Set SLP_S3# Assertion Stretch Enable */
@@ -195,19 +215,20 @@ static void sdram_detect_errors(void)
reg8 |= (1 << 3);
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa4, reg8);
- printk_debug("Reset required.\n");
- outb(0x00, 0xcf9);
- outb(0x0e, 0xcf9);
- for (;;) ; /* Wait for reset! */
+ if (do_reset) {
+ printk_debug("Reset required.\n");
+ outb(0x00, 0xcf9);
+ outb(0x0e, 0xcf9);
+ for (;;) ; /* Wait for reset! */
+ }
}
/* Set DRAM initialization bit in ICH7 */
reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2);
reg8 |= (1<<7);
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa2, reg8);
-
-}
+}
/**
* @brief Get generic DIMM parameters.
@@ -233,7 +254,7 @@ static void sdram_get_dram_configuration(struct sys_info *sysinfo)
*
* In practice dual channel mainboards have their spd at 0x50, 0x52
* whereas single channel configurations have their spd at 0x50/x51
- *
+ *
* The capability register knows a lot about the channel configuration
* but for now we stick with the information we gather from the SPD
* ROMs
@@ -249,7 +270,7 @@ static void sdram_get_dram_configuration(struct sys_info *sysinfo)
/**
* Since we only support two DIMMs in total, there is a limited number
- * of combinations. This function returns the type of DIMMs.
+ * of combinations. This function returns the type of DIMMs.
* return value:
* [0:7] lower DIMM population
* [8-15] higher DIMM population
@@ -272,9 +293,12 @@ static void sdram_get_dram_configuration(struct sys_info *sysinfo)
/* Initialize the socket information with a sane value */
sysinfo->dimm[i] = SYSINFO_DIMM_NOT_POPULATED;
- if (!sdram_capabilities_dual_channel() && (i >> 1))
+ /* Dual Channel not supported, but Channel 1? Bail out */
+ if (!sdram_capabilities_dual_channel() && (i >> 1))
continue;
- if (!sdram_capabilities_two_dimms_per_channel() && (i& 1))
+
+ /* Two DIMMs per channel not supported, but odd DIMM number? */
+ if (!sdram_capabilities_two_dimms_per_channel() && (i& 1))
continue;
printk_debug("DDR II Channel %d Socket %d: ", (i >> 1), (i & 1));
@@ -295,7 +319,7 @@ static void sdram_get_dram_configuration(struct sys_info *sysinfo)
die("Error: Registered memory not supported by this chipset\n");
switch (spd_read_byte(device, SPD_PRIMARY_SDRAM_WIDTH)) {
- case 0x08:
+ case 0x08:
switch (spd_read_byte(device, SPD_NUM_DIMM_BANKS) & 0x0f) {
case 1:
printk_debug("x8DDS\n");
@@ -428,7 +452,7 @@ static void sdram_detect_cas_latency_and_ram_speed(struct sys_info * sysinfo, u8
PRINTK_DEBUG("Probing Speed %d\n", j);
for (i=0; i<2*DIMM_SOCKETS; i++) {
int current_cas_mask;
-
+
PRINTK_DEBUG(" DIMM: %d\n", i);
if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) {
continue;
@@ -463,13 +487,13 @@ static void sdram_detect_cas_latency_and_ram_speed(struct sys_info * sysinfo, u8
spd_read_byte(DIMM_SPD_BASE + i, spd_lookup_table[(2*idx)+1]) <= ddr2_speeds_table[(2*j)+1]) {
PRINTK_DEBUG(": OK\n");
break;
- }
-
+ }
+
PRINTK_DEBUG(": Not fast enough!\n");
current_cas_mask &= ~(1 << (current_cas));
}
-
+
freq_cas_mask &= current_cas_mask;
if (!current_cas_mask) {
PRINTK_DEBUG(" No valid CAS for this speed on DIMM %d\n", i);
@@ -493,7 +517,7 @@ static void sdram_detect_cas_latency_and_ram_speed(struct sys_info * sysinfo, u8
break;
}
}
-
+
if (sysinfo->memory_frequency && sysinfo->cas) {
printk_debug("Memory will be driven at %dMHz with CAS=%d clocks\n",
sysinfo->memory_frequency, sysinfo->cas);
@@ -596,7 +620,7 @@ static void sdram_detect_smallest_tRCD(struct sys_info * sysinfo)
case 667: freq_multiplier = 0x0c; break; /* 3ns */
}
- tRCD_cycles = 2;
+ tRCD_cycles = 2; /* 2 clocks minimum */
tRCD_time = tRCD_cycles * freq_multiplier;
for (i=0; i<2*DIMM_SOCKETS; i++) {
@@ -705,8 +729,8 @@ static void sdram_detect_smallest_tRFC(struct sys_info * sysinfo)
}
index--;
switch (sysinfo->memory_frequency) {
- case 667: index += 3;
- case 533: index += 3;
+ case 667: index += 3; /* Fallthrough */
+ case 533: index += 3; /* Fallthrough */
case 400: break;
}
@@ -714,11 +738,10 @@ static void sdram_detect_smallest_tRFC(struct sys_info * sysinfo)
printk_debug("tRFC = %d cycles\n", tRFC_cycles[index]);
}
-
static void sdram_detect_smallest_refresh(struct sys_info * sysinfo)
{
int i;
-
+
sysinfo->refresh = 0;
for (i=0; i<2*DIMM_SOCKETS; i++) {
@@ -807,52 +830,51 @@ static void sdram_write_slew_rates(u32 offset, const u32 *slew_rate_table)
static void sdram_rcomp_buffer_strength_and_slew(struct sys_info *sysinfo)
{
static const u32 dq2030[] = {
- 0x08070706, 0x0a090908, 0x0d0c0b0a, 0x12100f0e,
+ 0x08070706, 0x0a090908, 0x0d0c0b0a, 0x12100f0e,
0x1a181614, 0x22201e1c, 0x2a282624, 0x3934302d,
- 0x0a090908, 0x0c0b0b0a, 0x0e0d0d0c, 0x1211100f,
+ 0x0a090908, 0x0c0b0b0a, 0x0e0d0d0c, 0x1211100f,
0x19171513, 0x211f1d1b, 0x2d292623, 0x3f393531
};
static const u32 dq2330[] = {
- 0x08070706, 0x0a090908, 0x0d0c0b0a, 0x12100f0e,
+ 0x08070706, 0x0a090908, 0x0d0c0b0a, 0x12100f0e,
0x1a181614, 0x22201e1c, 0x2a282624, 0x3934302d,
- 0x0a090908, 0x0c0b0b0a, 0x0e0d0d0c, 0x1211100f,
+ 0x0a090908, 0x0c0b0b0a, 0x0e0d0d0c, 0x1211100f,
0x19171513, 0x211f1d1b, 0x2d292623, 0x3f393531
};
static const u32 cmd2710[] = {
- 0x07060605, 0x0f0d0b09, 0x19171411, 0x1f1f1d1b,
+ 0x07060605, 0x0f0d0b09, 0x19171411, 0x1f1f1d1b,
0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f,
-
- 0x1110100f, 0x0f0d0b09, 0x19171411, 0x1f1f1d1b,
+ 0x1110100f, 0x0f0d0b09, 0x19171411, 0x1f1f1d1b,
0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f
};
static const u32 cmd3210[] = {
- 0x0f0d0b0a, 0x17151311, 0x1f1d1b19, 0x1f1f1f1f,
+ 0x0f0d0b0a, 0x17151311, 0x1f1d1b19, 0x1f1f1f1f,
0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f,
- 0x18171615, 0x1f1f1c1a, 0x1f1f1f1f, 0x1f1f1f1f,
+ 0x18171615, 0x1f1f1c1a, 0x1f1f1f1f, 0x1f1f1f1f,
0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f
};
static const u32 clk2030[] = {
- 0x0e0d0d0c, 0x100f0f0e, 0x100f0e0d, 0x15131211,
- 0x1d1b1917, 0x2523211f, 0x2a282927, 0x32302e2c,
- 0x17161514, 0x1b1a1918, 0x1f1e1d1c, 0x23222120,
+ 0x0e0d0d0c, 0x100f0f0e, 0x100f0e0d, 0x15131211,
+ 0x1d1b1917, 0x2523211f, 0x2a282927, 0x32302e2c,
+ 0x17161514, 0x1b1a1918, 0x1f1e1d1c, 0x23222120,
0x27262524, 0x2d2b2928, 0x3533312f, 0x3d3b3937
};
static const u32 ctl3215[] = {
- 0x01010000, 0x03020101, 0x07060504, 0x0b0a0908,
+ 0x01010000, 0x03020101, 0x07060504, 0x0b0a0908,
0x100f0e0d, 0x14131211, 0x18171615, 0x1c1b1a19,
- 0x05040403, 0x07060605, 0x0a090807, 0x0f0d0c0b,
+ 0x05040403, 0x07060605, 0x0a090807, 0x0f0d0c0b,
0x14131211, 0x18171615, 0x1c1b1a19, 0x201f1e1d
};
static const u32 ctl3220[] = {
- 0x05040403, 0x07060505, 0x0e0c0a08, 0x1a171411,
+ 0x05040403, 0x07060505, 0x0e0c0a08, 0x1a171411,
0x2825221f, 0x35322f2b, 0x3e3e3b38, 0x3e3e3e3e,
- 0x09080807, 0x0b0a0a09, 0x0f0d0c0b, 0x1b171311,
+ 0x09080807, 0x0b0a0a09, 0x0f0d0c0b, 0x1b171311,
0x2825221f, 0x35322f2b, 0x3e3e3b38, 0x3e3e3e3e
};
@@ -864,121 +886,120 @@ static void sdram_rcomp_buffer_strength_and_slew(struct sys_info *sysinfo)
};
static const u32 const * const dual_channel_slew_group_lookup[] = {
- dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd2710,
- dq2030, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
-
- dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
- dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, ctl3215, nc, clk2030, nc, dq2030, cmd2710,
- dq2030, cmd3210, ctl3215, nc, clk2030, nc, nc, nc,
-
- dq2030, cmd3210, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
- dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd2710,
- dq2030, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
-
- dq2030, cmd2710, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
- dq2030, cmd2710, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
- dq2030, cmd2710, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
- dq2030, cmd2710, ctl3215, nc, clk2030, nc, dq2030, cmd2710,
- dq2030, cmd2710, ctl3215, nc, clk2030, nc, nc, nc,
-
- nc, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
- nc, nc, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
- nc, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
- nc, nc, ctl3215, nc, clk2030, clk2030, dq2030, cmd2710
+ dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd2710,
+ dq2030, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
+
+ dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
+ dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, ctl3215, nc, clk2030, nc, dq2030, cmd2710,
+ dq2030, cmd3210, ctl3215, nc, clk2030, nc, nc, nc,
+
+ dq2030, cmd3210, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
+ dq2030, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd2710,
+ dq2030, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
+
+ dq2030, cmd2710, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
+ dq2030, cmd2710, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
+ dq2030, cmd2710, ctl3215, ctl3215, clk2030, clk2030, dq2030, cmd3210,
+ dq2030, cmd2710, ctl3215, nc, clk2030, nc, dq2030, cmd2710,
+ dq2030, cmd2710, ctl3215, nc, clk2030, nc, nc, nc,
+
+ nc, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
+ nc, nc, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
+ nc, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
+ nc, nc, ctl3215, nc, clk2030, clk2030, dq2030, cmd2710
};
static const u32 const * const single_channel_slew_group_lookup[] = {
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, nc, ctl3215, nc, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
-
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, nc, clk2030, nc, nc, nc,
-
- dq2330, cmd3210, nc, ctl3215, nc, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, nc, ctl3215, nc, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
-
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
- dq2330, cmd3210, ctl3215, nc, clk2030, nc, nc, nc,
-
- dq2330, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
- dq2330, nc, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
- dq2330, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
- dq2330, nc, ctl3215, nc, clk2030, clk2030, dq2030, cmd3210
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, nc, ctl3215, nc, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
+
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, nc, clk2030, nc, nc, nc,
+
+ dq2330, cmd3210, nc, ctl3215, nc, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, nc, ctl3215, nc, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, nc, ctl3215, nc, clk2030, nc, nc,
+
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, ctl3215, clk2030, clk2030, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, nc, clk2030, nc, dq2330, cmd3210,
+ dq2330, cmd3210, ctl3215, nc, clk2030, nc, nc, nc,
+
+ dq2330, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
+ dq2330, nc, ctl3215, nc, clk2030, nc, dq2030, cmd3210,
+ dq2330, nc, nc, ctl3215, nc, clk2030, dq2030, cmd3210,
+ dq2330, nc, ctl3215, nc, clk2030, clk2030, dq2030, cmd3210
};
-
/* Strength multiplier tables */
static const u8 dual_channel_strength_multiplier[] = {
- 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x22,
- 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
- 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11,
- 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x44, 0x22,
- 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
- 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
- 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x22,
- 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
- 0x44, 0x22, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
- 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11,
- 0x44, 0x22, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
- 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x44, 0x22,
- 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
- 0x00, 0x00, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11,
- 0x00, 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
- 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x44, 0x22
+ 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x22,
+ 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
+ 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11,
+ 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x44, 0x22,
+ 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
+ 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
+ 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x22,
+ 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
+ 0x44, 0x22, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
+ 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11,
+ 0x44, 0x22, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11,
+ 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x44, 0x22,
+ 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
+ 0x00, 0x00, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11,
+ 0x00, 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11,
+ 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x44, 0x22
};
static const u8 single_channel_strength_multiplier[] = {
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
- 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
- 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
- 0x33, 0x00, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
- 0x33, 0x00, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
- 0x33, 0x00, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
- 0x33, 0x00, 0x11, 0x00, 0x44, 0x44, 0x33, 0x11
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
+ 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
+ 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00,
+ 0x33, 0x00, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
+ 0x33, 0x00, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11,
+ 0x33, 0x00, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11,
+ 0x33, 0x00, 0x11, 0x00, 0x44, 0x44, 0x33, 0x11
};
const u8 * strength_multiplier;
@@ -1002,21 +1023,20 @@ static void sdram_rcomp_buffer_strength_and_slew(struct sys_info *sysinfo)
printk_debug("Table Index: %d\n", idx);
- MCHBAR8(G1SC) = strength_multiplier[idx * 8 + 0];
- MCHBAR8(G2SC) = strength_multiplier[idx * 8 + 1];
- MCHBAR8(G3SC) = strength_multiplier[idx * 8 + 2];
- MCHBAR8(G4SC) = strength_multiplier[idx * 8 + 3];
- MCHBAR8(G5SC) = strength_multiplier[idx * 8 + 4];
- MCHBAR8(G6SC) = strength_multiplier[idx * 8 + 5];
- MCHBAR8(G7SC) = strength_multiplier[idx * 8 + 6];
- MCHBAR8(G8SC) = strength_multiplier[idx * 8 + 7];
+ MCHBAR8(G1SC) = strength_multiplier[idx * 8 + 0];
+ MCHBAR8(G2SC) = strength_multiplier[idx * 8 + 1];
+ MCHBAR8(G3SC) = strength_multiplier[idx * 8 + 2];
+ MCHBAR8(G4SC) = strength_multiplier[idx * 8 + 3];
+ MCHBAR8(G5SC) = strength_multiplier[idx * 8 + 4];
+ MCHBAR8(G6SC) = strength_multiplier[idx * 8 + 5];
+ MCHBAR8(G7SC) = strength_multiplier[idx * 8 + 6];
+ MCHBAR8(G8SC) = strength_multiplier[idx * 8 + 7];
/* Channel 0 */
sdram_write_slew_rates(G1SRPUT, slew_group_lookup[idx * 8 + 0]);
sdram_write_slew_rates(G2SRPUT, slew_group_lookup[idx * 8 + 1]);
if ((slew_group_lookup[idx * 8 + 2] != nc) && (sysinfo->package == SYSINFO_PACKAGE_STACKED)) {
-
-
+
sdram_write_slew_rates(G3SRPUT, ctl3220);
} else {
sdram_write_slew_rates(G3SRPUT, slew_group_lookup[idx * 8 + 2]);
@@ -1038,7 +1058,7 @@ static void sdram_rcomp_buffer_strength_and_slew(struct sys_info *sysinfo)
static void sdram_enable_rcomp(void)
{
u32 reg32;
-
+ /* Enable Global Periodic RCOMP */
udelay(300);
reg32 = MCHBAR32(GBRCOMPCTL);
reg32 &= ~(1 << 23);
@@ -1051,7 +1071,7 @@ static void sdram_program_dll_timings(struct sys_info *sysinfo)
int i;
printk_debug ("Programming DLL Timings... \n");
-
+
MCHBAR16(DQSMT) &= ~( (3 << 12) | (1 << 10) | ( 0xf << 0) );
MCHBAR16(DQSMT) |= (1 << 13) | (0xc << 0);
@@ -1074,7 +1094,7 @@ static void sdram_force_rcomp(void)
{
u32 reg32;
u8 reg8;
-
+
reg32 = MCHBAR32(ODTC);
reg32 |= (1 << 28);
MCHBAR32(ODTC) = reg32;
@@ -1083,6 +1103,7 @@ static void sdram_force_rcomp(void)
reg32 |= (1 << 0);
MCHBAR32(SMSRCTL) = reg32;
+ /* Start initial RCOMP */
reg32 = MCHBAR32(GBRCOMPCTL);
reg32 |= (1 << 8);
MCHBAR32(GBRCOMPCTL) = reg32;
@@ -1101,7 +1122,7 @@ static void sdram_initialize_system_memory_io(struct sys_info *sysinfo)
u32 reg32;
printk_debug ("Initializing System Memory IO... \n");
-
+ /* Enable Data Half Clock Pushout */
reg8 = MCHBAR8(C0HCTC);
reg8 &= ~0x1f;
reg8 |= ( 1 << 0);
@@ -1112,17 +1133,18 @@ static void sdram_initialize_system_memory_io(struct sys_info *sysinfo)
reg8 |= ( 1 << 0);
MCHBAR8(C1HCTC) = reg8;
-
MCHBAR16(WDLLBYPMODE) &= ~( (1 << 9) | (1 << 6) | (1 << 4) | (1 << 3) | (1 << 1) );
MCHBAR16(WDLLBYPMODE) |= (1 << 8) | (1 << 7) | (1 << 5) | (1 << 2) | (1 << 0);
MCHBAR8(C0WDLLCMC) = 0;
MCHBAR8(C1WDLLCMC) = 0;
+ /* Program RCOMP Settings */
sdram_program_dram_width(sysinfo);
sdram_rcomp_buffer_strength_and_slew(sysinfo);
+ /* Indicate that RCOMP programming is done */
reg32 = MCHBAR32(GBRCOMPCTL);
reg32 &= ~( (1 << 29) | (1 << 26) | (3 << 21) | (3 << 2) );
reg32 |= (3 << 27) | (3 << 0);
@@ -1130,8 +1152,10 @@ static void sdram_initialize_system_memory_io(struct sys_info *sysinfo)
MCHBAR32(GBRCOMPCTL) |= (1 << 10);
+ /* Program DLL Timings */
sdram_program_dll_timings(sysinfo);
+ /* Force RCOMP cycle */
sdram_force_rcomp();
}
@@ -1140,10 +1164,10 @@ static void sdram_enable_system_memory_io(struct sys_info *sysinfo)
u32 reg32;
printk_debug ("Enabling System Memory IO... \n");
-
+
reg32 = MCHBAR32(RCVENMT);
reg32 &= ~(0x3f << 6);
- MCHBAR32(RCVENMT) = reg32;
+ MCHBAR32(RCVENMT) = reg32; /* [11:6] = 0 */
reg32 |= (1 << 11) | (1 << 9);
MCHBAR32(RCVENMT) = reg32;
@@ -1176,6 +1200,7 @@ static void sdram_enable_system_memory_io(struct sys_info *sysinfo)
MCHBAR32(DRTST) = reg32;
+ /* Activate DRAM Channel IO Buffers */
if (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED ||
sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED) {
reg32 = MCHBAR32(C0DRC1);
@@ -1224,7 +1249,7 @@ static struct dimm_size sdram_get_dimm_size(u16 device)
if (value < 0) goto hw_err;
value &= 0xff;
value <<= 8;
-
+
low = spd_read_byte(device, SPD_MODULE_DATA_WIDTH_LSB); /* (low byte) */
if (low < 0) goto hw_err;
value = value | (low & 0xff);
@@ -1260,7 +1285,7 @@ static struct dimm_size sdram_get_dimm_size(u16 device)
val_err:
die("Bad SPD value\n");
- hw_err:
+ hw_err:
/* If a hardware error occurs the spd rom probably does not exist.
* In this case report that there is no memory
*/
@@ -1290,10 +1315,10 @@ static void sdram_detect_dimm_size(struct sys_info * sysinfo)
if (sz.side1 < 30)
die("DDR-II rank size smaller than 128MB is not supported.\n");
- sysinfo->banksize[i * 2] = sz.side1 - 30;
+ sysinfo->banksize[i * 2] = 1 << (sz.side1 - 28);
+
+ printk_debug("DIMM %d side 0 = %d MB\n", i, sysinfo->banksize[i * 2] * 32 );
- printk_debug("DIMM %d side 0 = %d MB\n", i, (1 << sysinfo->banksize[i * 2]) * 128 );
-
if (!sz.side2)
continue;
@@ -1301,22 +1326,22 @@ static void sdram_detect_dimm_size(struct sys_info * sysinfo)
if (sz.side2 < 30)
die("DDR-II rank size smaller than 128MB is not supported.\n");
- sysinfo->banksize[(i * 2) + 1] = sz.side2 - 30;
+ sysinfo->banksize[(i * 2) + 1] = 1 << (sz.side2 - 28);
- printk_debug("DIMM %d side 1 = %d MB\n", i, (1 << sysinfo->banksize[(i * 2) + 1]) * 128);
+ printk_debug("DIMM %d side 1 = %d MB\n", i, sysinfo->banksize[(i * 2) + 1] * 32);
}
}
static int sdram_program_row_boundaries(struct sys_info *sysinfo)
{
int i;
- int cum0, cum1, tolud;
+ int cum0, cum1, tolud, tom;
printk_debug ("Setting RAM size... \n");
cum0 = 0;
for(i = 0; i < 2 * DIMM_SOCKETS; i++) {
- cum0 += (sysinfo->banksize[i] << 3);
+ cum0 += sysinfo->banksize[i];
MCHBAR8(C0DRB0+i) = cum0;
}
@@ -1333,7 +1358,7 @@ static int sdram_program_row_boundaries(struct sys_info *sysinfo)
cum1 = 0;
for(i = 0; i < 2 * DIMM_SOCKETS; i++) {
- cum1 += (sysinfo->banksize[i + 4] << 3);
+ cum1 += sysinfo->banksize[i + 4];
MCHBAR8(C1DRB0+i) = cum1;
}
@@ -1343,21 +1368,24 @@ static int sdram_program_row_boundaries(struct sys_info *sysinfo)
else
tolud = (cum1 ? cum1 : cum0) << 1;
- /* Some extra checks needed. See 4.1.26 in the
- * 82945G MCH datasheet (30750203)
- */
- pci_write_config16(PCI_DEV(0,0,0), TOLUD, tolud);
-
+ /* The TOM register has a different format */
+ tom = tolud >> 3;
+
+ /* Limit the value of TOLUD to leave some space for PCI memory. */
+ if (tolud > 0xd0)
+ tolud = 0xd0; /* 3.25GB : 0.75GB */
+
+ pci_write_config8(PCI_DEV(0,0,0), TOLUD, tolud);
+
printk_debug("C0DRB = 0x%08x\n", MCHBAR32(C0DRB0));
printk_debug("C1DRB = 0x%08x\n", MCHBAR32(C1DRB0));
- printk_debug("TOLUD = 0x%04x\n", tolud);
+ printk_debug("TOLUD = 0x%04x\n", pci_read_config8(PCI_DEV(0,0,0), TOLUD));
- pci_write_config16(PCI_DEV(0,0,0), TOM, tolud>>3);
+ pci_write_config16(PCI_DEV(0,0,0), TOM, tom);
return 0;
}
-
static int sdram_set_row_attributes(struct sys_info *sysinfo)
{
int i, value;
@@ -1373,7 +1401,6 @@ static int sdram_set_row_attributes(struct sys_info *sysinfo)
}
device = DIMM_SPD_BASE + i;
- columnsrows = 0;
value = spd_read_byte(device, SPD_NUM_ROWS); /* rows */
columnsrows = (value & 0x0f);
@@ -1394,7 +1421,7 @@ static int sdram_set_row_attributes(struct sys_info *sysinfo)
if (sysinfo->banksize[(2 * i) + 1] != 0) {
dra = (dra << 4) | dra;
}
-
+
if (i < DIMM_SOCKETS)
dra0 |= (dra << (i*8));
else
@@ -1403,7 +1430,7 @@ static int sdram_set_row_attributes(struct sys_info *sysinfo)
MCHBAR16(C0DRA0) = dra0;
MCHBAR16(C1DRA0) = dra1;
-
+
printk_debug("C0DRA = 0x%04x\n", dra0);
printk_debug("C1DRA = 0x%04x\n", dra1);
@@ -1444,7 +1471,7 @@ static void sdram_set_bank_architecture(struct sys_info *sysinfo)
static void sdram_program_refresh_rate(struct sys_info *sysinfo)
{
u32 reg32;
-
+
if (sysinfo->refresh == REFRESH_7_8US) {
reg32 = (2 << 8); /* Refresh enabled at 7.8us */
} else {
@@ -1464,29 +1491,29 @@ static void sdram_program_cke_tristate(struct sys_info *sysinfo)
int i;
reg32 = MCHBAR32(C0DRC1);
-
+
for (i=0; i < 4; i++) {
if (sysinfo->banksize[i] == 0) {
reg32 |= (1 << (16 + i));
}
}
-
+
reg32 |= (1 << 12);
-
+
reg32 |= (1 << 11);
MCHBAR32(C0DRC1) = reg32;
/* Do we have to do this if we're in Single Channel Mode? */
reg32 = MCHBAR32(C1DRC1);
-
+
for (i=4; i < 8; i++) {
if (sysinfo->banksize[i] == 0) {
reg32 |= (1 << (12 + i));
}
}
-
+
reg32 |= (1 << 12);
-
+
reg32 |= (1 << 11);
MCHBAR32(C1DRC1) = reg32;
}
@@ -1497,7 +1524,7 @@ static void sdram_program_odt_tristate(struct sys_info *sysinfo)
int i;
reg32 = MCHBAR32(C0DRC2);
-
+
for (i=0; i < 4; i++) {
if (sysinfo->banksize[i] == 0) {
reg32 |= (1 << (24 + i));
@@ -1506,7 +1533,7 @@ static void sdram_program_odt_tristate(struct sys_info *sysinfo)
MCHBAR32(C0DRC2) = reg32;
reg32 = MCHBAR32(C1DRC2);
-
+
for (i=4; i < 8; i++) {
if (sysinfo->banksize[i] == 0) {
reg32 |= (1 << (20 + i));
@@ -1535,18 +1562,18 @@ static void sdram_set_timing_and_control(struct sys_info *sysinfo)
reg32 = MCHBAR32(C0DRC0);
reg32 |= (1 << 2); /* Burst Length 8 */
- reg32 &= ~( (1 << 13) | (1 << 12) );
+ reg32 &= ~( (1 << 13) | (1 << 12) );
MCHBAR32(C0DRC0) = reg32;
reg32 = MCHBAR32(C1DRC0);
reg32 |= (1 << 2); /* Burst Length 8 */
- reg32 &= ~( (1 << 13) | (1 << 12) );
+ reg32 &= ~( (1 << 13) | (1 << 12) );
MCHBAR32(C1DRC0) = reg32;
if (!sysinfo->dual_channel && sysinfo->dimm[1] !=
SYSINFO_DIMM_NOT_POPULATED) {
reg32 = MCHBAR32(C0DRC0);
- reg32 |= (1 << 15);
+ reg32 |= (1 << 15);
MCHBAR32(C0DRC0) = reg32;
}
@@ -1578,7 +1605,7 @@ static void sdram_set_timing_and_control(struct sys_info *sysinfo)
reg32 = (sysinfo->cas - 1) + (BURSTLENGTH / 2) + tWTR;
temp_drt |= (reg32 << 24);
-
+ /* CxDRT0 [23:22], [21:20], [19:18] [16] have fixed values */
temp_drt |= ( (1 << 22) | (3 << 20) | (1 << 18) | (0 << 16) );
/* Program Write Auto Precharge to Activate */
@@ -1594,14 +1621,14 @@ static void sdram_set_timing_and_control(struct sys_info *sysinfo)
temp_drt |= (reg32 << 11);
/* Read Auto Precharge to Activate */
-
+
temp_drt |= (8 << 0);
MCHBAR32(C0DRT0) = temp_drt;
MCHBAR32(C1DRT0) = temp_drt;
/* Calculate DRT1 */
-
+
temp_drt = MCHBAR32(C0DRT1) & 0x00020088;
/* DRAM RASB Precharge */
@@ -1615,13 +1642,13 @@ static void sdram_set_timing_and_control(struct sys_info *sysinfo)
/* Refresh Cycle Time */
temp_drt |= (sysinfo->trfc) << 10;
-
+
/* Pre-All to Activate Delay */
temp_drt |= (0 << 16);
-
+
/* Precharge to Precharge Delay stays at 1 clock */
temp_drt |= (0 << 18);
-
+
/* Activate to Precharge Delay */
temp_drt |= (sysinfo->tras << 19);
@@ -1647,7 +1674,7 @@ static void sdram_set_timing_and_control(struct sys_info *sysinfo)
if (sysinfo->memory_frequency == 667) {
reg32 = page_size;
}
-
+
temp_drt |= (reg32 << 30);
MCHBAR32(C0DRT1) = temp_drt;
@@ -1697,13 +1724,12 @@ static void sdram_set_channel_mode(struct sys_info *sysinfo)
printk_debug("Setting mode of operation for memory channels...");
- if (sdram_capabilities_interleave() &&
+ if (sdram_capabilities_interleave() &&
( ( sysinfo->banksize[0] + sysinfo->banksize[1] +
sysinfo->banksize[2] + sysinfo->banksize[3] ) ==
( sysinfo->banksize[4] + sysinfo->banksize[5] +
sysinfo->banksize[6] + sysinfo->banksize[7] ) ) ) {
/* Both channels equipped with DIMMs of the same size */
-
sysinfo->interleaved = 1;
} else {
sysinfo->interleaved = 0;
@@ -1731,46 +1757,44 @@ static void sdram_set_channel_mode(struct sys_info *sysinfo)
printk_debug("Single Channel 0 only.\n");
}
- reg32 |= (1 << 10);
+ reg32 |= (1 << 10);
MCHBAR32(DCC) = reg32;
PRINTK_DEBUG("DCC=0x%08x\n", MCHBAR32(DCC));
}
-static void sdram_program_pll_settings(void)
+static void sdram_program_pll_settings(struct sys_info *sysinfo)
{
volatile u16 reg16;
- volatile u32 reg32;
-
- const u8 HPLLGPLLPowerDown[] = {
- 0x90, /* 400MHz */
- 0x95, /* 533MHz */
- 0x00, /* --- */
- 0x8d, /* 667MHz */
- };
MCHBAR32(PLLMON) = 0x80800000;
- reg32 = MCHBAR32(CLKCFG);
- reg32 &= (7 << 0);
+ switch (MCHBAR32(CLKCFG) & 0x7) {
+ case 0: sysinfo->fsb_frequency = 400; break; /* FSB400 */
+ case 1: sysinfo->fsb_frequency = 533; break; /* FSB533 */
+ case 3: sysinfo->fsb_frequency = 667; break; /* FSB667 */
+ default: die("Unsupported FSB speed");
+ }
- reg16 = MCHBAR16(CPCTL);
- reg16 &= 0xff00;
- reg16 |= HPLLGPLLPowerDown[reg32];
- MCHBAR16(CPCTL) = reg16;
+ /* Program CPCTL according to FSB speed */
+ /* Only write the lower byte */
+ switch (sysinfo->fsb_frequency) {
+ case 400: MCHBAR8(CPCTL) = 0x90; break; /* FSB400 */
+ case 533: MCHBAR8(CPCTL) = 0x95; break; /* FSB533 */
+ case 667: MCHBAR8(CPCTL) = 0x8d; break; /* FSB667 */
+ }
- reg16 &= ~(1 << 11);
- MCHBAR16(CPCTL) = reg16;
+ MCHBAR16(CPCTL) &= ~(1 << 11);
- reg16 = MCHBAR16(CPCTL);
+ reg16 = MCHBAR16(CPCTL); /* Read back register to activate settings */
}
static void sdram_program_graphics_frequency(struct sys_info *sysinfo)
{
u8 reg8;
u16 reg16;
- u8 freq, second_vco;
+ u8 freq, second_vco, voltage;
#define CRCLK_166MHz 0x00
#define CRCLK_200MHz 0x01
@@ -1780,62 +1804,63 @@ static void sdram_program_graphics_frequency(struct sys_info *sysinfo)
#define CDCLK_200MHz 0x00
#define CDCLK_320MHz 0x40
- printk_debug ("Setting Graphics Frequency... \n");
+#define VOLTAGE_1_05 0x00
+#define VOLTAGE_1_50 0x01
- reg16 = pci_read_config16(PCI_DEV(0,2,0), GCFC);
- reg16 |= (1<<11) | (1<<9);
- pci_write_config16(PCI_DEV(0,2,0), GCFC, reg16);
+ printk_debug ("Setting Graphics Frequency... \n");
- /* Program CPCTL according to FSB speed */
- reg16 = MCHBAR16(CPCTL);
- reg16 &= 0xff00;
+ printk_debug("FSB: %d MHz ", sysinfo->fsb_frequency);
- switch (MCHBAR32(CLKCFG) & 0x7) {
- case 0: sysinfo->fsb_frequency = 400; break; /* FSB400 */
- case 1: sysinfo->fsb_frequency = 533; break; /* FSB533 */
- case 3: sysinfo->fsb_frequency = 667; break; /* FSB667 */
- default: die("Unsupported FSB speed");
- }
+ voltage = VOLTAGE_1_05;
+ if (MCHBAR32(DFT_STRAP1) & (1 << 20))
+ voltage = VOLTAGE_1_50;
+ printk_debug("Voltage: %s ", (voltage==VOLTAGE_1_05)?"1.05V":"1.5V");
- switch (sysinfo->fsb_frequency) {
- case 533: reg16 |= 0x95; break; /* FSB533 */
- case 667: reg16 |= 0x8d; break; /* FSB667 */
- }
- MCHBAR16(CPCTL) = reg16;
+ /* Gate graphics hardware for frequency change */
+ reg8 = pci_read_config16(PCI_DEV(0,2,0), GCFC + 1);
+ reg8 = (1<<3) | (1<<1); /* disable crclk, gate cdclk */
+ pci_write_config8(PCI_DEV(0,2,0), GCFC + 1, reg8);
/* Get graphics frequency capabilities */
- reg8 = (pci_read_config8(PCI_DEV(0, 0x00,0), 0xe5) & 0x0e) >> 1;
-
+ reg8 = sdram_capabilities_core_frequencies();
+
freq = CRCLK_250MHz;
switch (reg8) {
- case 0:
- if (MCHBAR32(DFT_STRAP1) & (1 << 20))
+ case GFX_FREQUENCY_CAP_ALL:
+ if (voltage == VOLTAGE_1_05)
freq = CRCLK_250MHz;
else
freq = CRCLK_400MHz;
break;
- case 2: freq = CRCLK_250MHz; break;
- case 3: freq = CRCLK_200MHz; break;
- case 4: freq = CRCLK_166MHz; break;
+ case GFX_FREQUENCY_CAP_250MHZ: freq = CRCLK_250MHz; break;
+ case GFX_FREQUENCY_CAP_200MHZ: freq = CRCLK_200MHz; break;
+ case GFX_FREQUENCY_CAP_166MHZ: freq = CRCLK_166MHz; break;
}
if (freq != CRCLK_400MHz) {
-
+ /* What chipset are we? Force 166MHz for GMS */
reg8 = (pci_read_config8(PCI_DEV(0, 0x00,0), 0xe7) & 0x70) >> 4;
if (reg8==2)
freq = CRCLK_166MHz;
}
+ printk_debug("Render: ");
+ switch (freq) {
+ case CRCLK_166MHz: printk_debug("166Mhz"); break;
+ case CRCLK_200MHz: printk_debug("200Mhz"); break;
+ case CRCLK_250MHz: printk_debug("250Mhz"); break;
+ case CRCLK_400MHz: printk_debug("400Mhz"); break;
+ }
+
if (i945_silicon_revision() == 0) {
sysinfo->mvco4x = 1;
} else {
sysinfo->mvco4x = 0;
}
-
second_vco = 0;
- if (MCHBAR32(DFT_STRAP1) & (1 << 20)) {
+ if (voltage == VOLTAGE_1_50) {
second_vco = 1;
} else if ((i945_silicon_revision() > 0) && (freq == CRCLK_250MHz)) {
u16 mem = sysinfo->memory_frequency;
@@ -1852,34 +1877,41 @@ static void sdram_program_graphics_frequency(struct sys_info *sysinfo)
}
if (second_vco) {
- printk_debug("Programming second TCO\n");
sysinfo->clkcfg_bit7=1;
} else {
sysinfo->clkcfg_bit7=0;
}
+ /* Graphics Core Render Clock */
reg16 = pci_read_config16(PCI_DEV(0,2,0), GCFC);
reg16 &= ~( (7 << 0) | (1 << 13) );
reg16 |= freq;
pci_write_config16(PCI_DEV(0,2,0), GCFC, reg16);
- reg16 = pci_read_config16(PCI_DEV(0,2,0), GCFC);
- reg16 &= ~( (1<<7) | (7<<4) );
- if (MCHBAR32(DFT_STRAP1) & (1 << 20)) {
- reg16 |= CDCLK_200MHz;
+ /* Graphics Core Display Clock */
+ reg8 = pci_read_config8(PCI_DEV(0,2,0), GCFC);
+ reg8 &= ~( (1<<7) | (7<<4) );
+
+ if (voltage == VOLTAGE_1_05) {
+ reg8 |= CDCLK_200MHz;
+ printk_debug(" Display: 200MHz\n");
} else {
- reg16 |= CDCLK_320MHz;
+ reg8 |= CDCLK_320MHz;
+ printk_debug(" Display: 320MHz\n");
}
- pci_write_config16(PCI_DEV(0,2,0), GCFC, reg16);
+ pci_write_config8(PCI_DEV(0,2,0), GCFC, reg8);
- reg16 = pci_read_config16(PCI_DEV(0,2,0), GCFC);
- reg16 &= ~( (1<<10) | (1<<8) );
- pci_write_config16(PCI_DEV(0,2,0), GCFC, reg16);
- reg16 |= (1<<10) | (1<<8);
- pci_write_config16(PCI_DEV(0,2,0), GCFC, reg16);
+ reg8 = pci_read_config8(PCI_DEV(0,2,0), GCFC + 1);
- reg16 &= 0xf0ff;
- pci_write_config16(PCI_DEV(0,2,0), GCFC, reg16);
+ reg8 |= (1<<3) | (1<<1);
+ pci_write_config8(PCI_DEV(0,2,0), GCFC + 1, reg8);
+
+ reg8 |= 0x0f;
+ pci_write_config8(PCI_DEV(0,2,0), GCFC + 1, reg8);
+
+ /* Ungate core render and display clocks */
+ reg8 &= 0xf0;
+ pci_write_config8(PCI_DEV(0,2,0), GCFC + 1, reg8);
}
static void sdram_program_memory_frequency(struct sys_info *sysinfo)
@@ -1888,7 +1920,7 @@ static void sdram_program_memory_frequency(struct sys_info *sysinfo)
u8 reg8;
printk_debug ("Setting Memory Frequency... ");
-
+
clkcfg = MCHBAR32(CLKCFG);
printk_debug("CLKCFG=0x%08x, ", clkcfg);
@@ -1902,7 +1934,7 @@ static void sdram_program_memory_frequency(struct sys_info *sysinfo)
if (sysinfo->clkcfg_bit7) {
printk_debug("second VCO, ");
-
+
clkcfg |= (1 << 7);
}
@@ -1920,7 +1952,7 @@ static void sdram_program_memory_frequency(struct sys_info *sysinfo)
MCHBAR32(CLKCFG) = clkcfg;
- /* Make sure the following code is in the
+ /* Make sure the following code is in the
* cache before we execute it.
*/
goto cache_code;
@@ -1929,13 +1961,11 @@ vco_update:
reg8 &= ~(1 << 7);
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa2, reg8);
-
clkcfg &= ~(1 << 10);
MCHBAR32(CLKCFG) = clkcfg;
clkcfg |= (1 << 10);
MCHBAR32(CLKCFG) = clkcfg;
-
__asm__ __volatile__ (
" movl $0x100, %%ecx\n"
"delay_update:\n"
@@ -1949,7 +1979,6 @@ vco_update:
: "%ecx"
);
-
clkcfg &= ~(1 << 10);
MCHBAR32(CLKCFG) = clkcfg;
@@ -1968,12 +1997,12 @@ static void sdram_program_clock_crossing(void)
int idx = 0;
/**
- * The first two lines of each of these tables are for FSB533,
- * the following three lines are for FSB667. We ignore FSB400.
- * Thus we add the indices according to our clocks from CLKCFG.
+ * We add the indices according to our clocks from CLKCFG.
*/
static const u32 data_clock_crossing[] = {
+ 0x00100401, 0x00000000, /* DDR400 FSB400 */
+
0x08040120, 0x00000000, /* DDR400 FSB533 */
0x00100401, 0x00000000, /* DDR533 FSB533 */
@@ -1983,6 +2012,8 @@ static void sdram_program_clock_crossing(void)
};
static const u32 command_clock_crossing[] = {
+ 0x04020208, 0x00000000, /* DDR400 FSB400 */
+
0x00060108, 0x00000000, /* DDR400 FSB533 */
0x04020108, 0x00000000, /* DDR533 FSB533 */
@@ -2004,20 +2035,20 @@ static void sdram_program_clock_crossing(void)
printk_debug(" FSB=");
switch (reg32 & 7) {
- case 0: printk_debug("400\n"); return;
- case 1: printk_debug("533"); idx += 0; break;
- case 3: printk_debug("667"); idx += 4; break;
+ case 0: printk_debug("400\n"); idx += 0; break;
+ case 1: printk_debug("533"); idx += 2; break;
+ case 3: printk_debug("667"); idx += 6; break;
default: printk_debug("RSVD\n"); return;
}
+ MCHBAR32(CCCFT + 0) = command_clock_crossing[idx];
+ MCHBAR32(CCCFT + 4) = command_clock_crossing[idx + 1];
+
MCHBAR32(C0DCCFT + 0) = data_clock_crossing[idx];
MCHBAR32(C0DCCFT + 4) = data_clock_crossing[idx + 1];
MCHBAR32(C1DCCFT + 0) = data_clock_crossing[idx];
MCHBAR32(C1DCCFT + 4) = data_clock_crossing[idx + 1];
- MCHBAR32(CCCFT + 0) = command_clock_crossing[idx];
- MCHBAR32(CCCFT + 4) = command_clock_crossing[idx + 1];
-
printk_debug("... ok\n");
}
@@ -2037,7 +2068,7 @@ static void sdram_disable_fast_dispatch(void)
static void sdram_pre_jedec_initialization(void)
{
u32 reg32;
-
+
reg32 = MCHBAR32(WCC);
reg32 &= 0x113ff3ff;
reg32 |= (4 << 29) | (3 << 25) | (1 << 10);
@@ -2051,6 +2082,7 @@ static void sdram_pre_jedec_initialization(void)
MCHBAR32(MMARB1) &= ~(7 << 8);
MCHBAR32(MMARB1) |= (3 << 8);
+ /* Adaptive Idle Timer Control */
MCHBAR32(C0AIT) = 0x000006c4;
MCHBAR32(C0AIT+4) = 0x871a066d;
@@ -2072,9 +2104,9 @@ static void sdram_enhanced_addressing_mode(struct sys_info *sysinfo)
u32 chan0 = 0, chan1 = 0;
int chan0_dualsided, chan1_dualsided, chan0_populated, chan1_populated;
- chan0_populated = (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED ||
+ chan0_populated = (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED ||
sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED);
- chan1_populated = (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED ||
+ chan1_populated = (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED ||
sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED);
chan0_dualsided = (sysinfo->banksize[1] || sysinfo->banksize[3]);
chan1_dualsided = (sysinfo->banksize[5] || sysinfo->banksize[7]);
@@ -2155,6 +2187,7 @@ static void sdram_post_jedec_initialization(struct sys_info *sysinfo)
/* Enable Channel XORing for Dual Channel Interleave */
if (sysinfo->interleaved) {
+
reg32 = MCHBAR32(DCC);
#if CHANNEL_XOR_RANDOMIZATION
reg32 &= ~(1 << 10);
@@ -2189,34 +2222,40 @@ static void sdram_power_management(struct sys_info *sysinfo)
u32 reg32;
int integrated_graphics = 1;
int i;
-
+
reg32 = MCHBAR32(C0DRT2);
reg32 &= 0xffffff00;
/* Idle timer = 8 clocks, CKE idle timer = 16 clocks */
- reg32 |= (1 << 5) | (1 << 4);
+ reg32 |= (1 << 5) | (1 << 4);
MCHBAR32(C0DRT2) = reg32;
reg32 = MCHBAR32(C1DRT2);
reg32 &= 0xffffff00;
/* Idle timer = 8 clocks, CKE idle timer = 16 clocks */
- reg32 |= (1 << 5) | (1 << 4);
+ reg32 |= (1 << 5) | (1 << 4);
MCHBAR32(C1DRT2) = reg32;
reg32 = MCHBAR32(C0DRC1);
-
- reg32 |= (1 << 12) | (1 << 11);
+
+ reg32 |= (1 << 12) | (1 << 11);
MCHBAR32(C0DRC1) = reg32;
reg32 = MCHBAR32(C1DRC1);
-
- reg32 |= (1 << 12) | (1 << 11);
+
+ reg32 |= (1 << 12) | (1 << 11);
MCHBAR32(C1DRC1) = reg32;
if (i945_silicon_revision()>1) {
- MCHBAR16(UPMC1) = 0x1010;
+ /* FIXME bits 5 and 0 only if PCIe graphics is disabled */
+ u16 peg_bits = (1 << 5) | (1 << 0);
+
+ MCHBAR16(UPMC1) = 0x1010 | peg_bits;
} else {
+ /* FIXME bits 5 and 0 only if PCIe graphics is disabled */
+ u16 peg_bits = (1 << 5) | (1 << 0);
+
/* Rev 0 and 1 */
- MCHBAR16(UPMC1) = 0x0010;
+ MCHBAR16(UPMC1) = 0x0010 | peg_bits;
}
reg16 = MCHBAR16(UPMC2);
@@ -2225,7 +2264,7 @@ static void sdram_power_management(struct sys_info *sysinfo)
MCHBAR16(UPMC2) = reg16;
MCHBAR32(UPMC3) = 0x000f06ff;
-
+
for (i=0; i<5; i++) {
MCHBAR32(UPMC3) &= ~(1 << 16);
MCHBAR32(UPMC3) |= (1 << 16);
@@ -2233,7 +2272,7 @@ static void sdram_power_management(struct sys_info *sysinfo)
MCHBAR32(GIPMC1) = 0x8000000c;
- reg16 = MCHBAR16(CPCTL);
+ reg16 = MCHBAR16(CPCTL);
reg16 &= ~(7 << 11);
if (i945_silicon_revision()>2) {
reg16 |= (6 << 11);
@@ -2243,7 +2282,6 @@ static void sdram_power_management(struct sys_info *sysinfo)
MCHBAR16(CPCTL) = reg16;
#if 0
- /* This is set later in the game */
if ((MCHBAR32(ECO) & (1 << 16)) != 0) {
#else
if (i945_silicon_revision() != 0) {
@@ -2284,6 +2322,7 @@ static void sdram_power_management(struct sys_info *sysinfo)
}
#if 0
+
if (i945_silicon_revision() == 0) {
MCHBAR32(FSBPMC3) &= ~(1 << 29);
} else {
@@ -2307,8 +2346,8 @@ static void sdram_power_management(struct sys_info *sysinfo)
MCHBAR32(FSBPMC4) |= (1 << 5);
- if (i945_silicon_revision() < 2) {
- /* stepping 0 and 1 */
+ if ((i945_silicon_revision() < 2) /* || cpuid() = 0x6e8 */ ) {
+ /* stepping 0 and 1 or CPUID 6e8 */
MCHBAR32(FSBPMC4) &= ~(1 << 4);
} else {
MCHBAR32(FSBPMC4) |= (1 << 4);
@@ -2322,7 +2361,10 @@ static void sdram_power_management(struct sys_info *sysinfo)
reg8 |= (1 << 2);
pci_write_config8(PCI_DEV(0, 0x2, 0), 0xc1, reg8);
+#if C2_SELF_REFRESH_DISABLE
+
if (integrated_graphics) {
+ printk_debug("C2 self-refresh with IGD\n");
MCHBAR16(MIPMC4) = 0x0468;
MCHBAR16(MIPMC5) = 0x046c;
MCHBAR16(MIPMC6) = 0x046c;
@@ -2331,13 +2373,26 @@ static void sdram_power_management(struct sys_info *sysinfo)
MCHBAR16(MIPMC5) = 0x646c;
MCHBAR16(MIPMC6) = 0x646c;
}
+#else
+ if (integrated_graphics) {
+ MCHBAR16(MIPMC4) = 0x04f8;
+ MCHBAR16(MIPMC5) = 0x04fc;
+ MCHBAR16(MIPMC6) = 0x04fc;
+ } else {
+ MCHBAR16(MIPMC4) = 0x64f8;
+ MCHBAR16(MIPMC5) = 0x64fc;
+ MCHBAR16(MIPMC6) = 0x64fc;
+ }
+
+#endif
reg32 = MCHBAR32(PMCFG);
reg32 &= ~(3 << 17);
reg32 |= (2 << 17);
- reg32 |= (1 << 4);
MCHBAR32(PMCFG) = reg32;
+ MCHBAR32(PMCFG) |= (1 << 4);
+
reg32 = MCHBAR32(0xc30);
reg32 &= 0xffffff00;
reg32 |= 0x01;
@@ -2348,13 +2403,76 @@ static void sdram_power_management(struct sys_info *sysinfo)
static void sdram_thermal_management(void)
{
- /* The Thermal Sensors for DIMMs at 0x50, 0x52 are at I2C addr
- * 0x30/0x32.
- */
- /* Explicitly set to 0 */
MCHBAR8(TCO1) = 0x00;
MCHBAR8(TCO0) = 0x00;
+
+ /* The Thermal Sensors for DIMMs at 0x50, 0x52 are at I2C addr
+ * 0x30/0x32.
+ */
+
+}
+
+static void sdram_save_receive_enable(void)
+{
+ int i;
+ u32 reg32;
+ u8 values[4];
+
+ /* The following values are stored to an unused CMOS
+ * area and restored instead of recalculated in case
+ * of an S3 resume.
+ *
+ * C0WL0REOST [7:0] -> 8 bit
+ * C1WL0REOST [7:0] -> 8 bit
+ * RCVENMT [11:8] [3:0] -> 8 bit
+ * C0DRT1 [27:24] -> 4 bit
+ * C1DRT1 [27:24] -> 4 bit
+ */
+
+ values[0] = MCHBAR8(C0WL0REOST);
+ values[1] = MCHBAR8(C1WL0REOST);
+
+ reg32 = MCHBAR32(RCVENMT);
+ values[2] = (u8)((reg32 >> (8 - 4)) & 0xf0) | (reg32 & 0x0f);
+
+ reg32 = MCHBAR32(C0DRT1);
+ values[3] = (reg32 >> 24) & 0x0f;
+ reg32 = MCHBAR32(C1DRT1);
+ values[3] |= (reg32 >> (24 - 4)) & 0xf0;
+
+ /* coreboot only uses bytes 0 - 127 for its CMOS values so far
+ * so we grad bytes 128 - 131 to save the receive enable values
+ */
+
+ for (i=0; i<4; i++)
+ cmos_write(values[i], 128 + i);
+}
+
+static void sdram_recover_receive_enable(void)
+{
+ int i;
+ u32 reg32;
+ u8 values[4];
+
+ for (i=0; i<4; i++)
+ values[i] = cmos_read(128 + i);
+
+ MCHBAR8(C0WL0REOST) = values[0];
+ MCHBAR8(C1WL0REOST) = values[1];
+
+ reg32 = MCHBAR32(RCVENMT);
+ reg32 &= ~((0x0f << 8) | (0x0f << 0));
+ reg32 |= ((u32)(values[2] & 0xf0) << (8 - 4)) | (values[2] & 0x0f);
+ MCHBAR32(RCVENMT) = reg32;
+
+ reg32 = MCHBAR32(C0DRT1) & ~(0x0f << 24);
+ reg32 |= (u32)(values[3] & 0x0f) << 24;
+ MCHBAR32(C0DRT1) = reg32;
+
+ reg32 = MCHBAR32(C1DRT1) & ~(0x0f << 24);
+ reg32 |= (u32)(values[3] & 0xf0) << (24 - 4);
+ MCHBAR32(C1DRT1) = reg32;
}
#include "rcven.c"
@@ -2363,14 +2481,20 @@ static void sdram_program_receive_enable(struct sys_info *sysinfo)
{
MCHBAR32(REPC) |= (1 << 0);
- receive_enable_adjust(sysinfo);
+ /* Program Receive Enable Timings */
+ if (sysinfo->boot_path == BOOT_PATH_RESUME) {
+ sdram_recover_receive_enable();
+ } else {
+ receive_enable_adjust(sysinfo);
+ sdram_save_receive_enable();
+ }
MCHBAR32(C0DRC1) |= (1 << 6);
MCHBAR32(C1DRC1) |= (1 << 6);
MCHBAR32(C0DRC1) &= ~(1 << 6);
MCHBAR32(C1DRC1) &= ~(1 << 6);
- MCHBAR32(MIPMC3) |= (0x0f << 0);
+ MCHBAR32(MIPMC3) |= (0x0f << 0);
}
/**
@@ -2381,9 +2505,9 @@ static void sdram_program_receive_enable(struct sys_info *sysinfo)
static void sdram_on_die_termination(struct sys_info *sysinfo)
{
static const u32 odt[] = {
- 0x00024911, 0xe0010000,
- 0x00049211, 0xe0020000,
- 0x0006db11, 0xe0030000,
+ 0x00024911, 0xe0010000,
+ 0x00049211, 0xe0020000,
+ 0x0006db11, 0xe0030000,
};
u32 reg32;
@@ -2397,7 +2521,7 @@ static void sdram_on_die_termination(struct sys_info *sysinfo)
if ( !(sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED &&
sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED) ) {
printk_debug("one dimm per channel config.. \n");
-
+
reg32 = MCHBAR32(C0ODT);
reg32 &= ~(7 << 28);
MCHBAR32(C0ODT) = reg32;
@@ -2446,14 +2570,26 @@ static void sdram_enable_memory_clocks(struct sys_info *sysinfo)
clocks[1] |= (1 << 2) | (1 << 3);
#ifdef OVERRIDE_CLOCK_DISABLE
- clocks[0] = 0xf;
- clocks[1] = 0xf;
+ /* Usually system firmware turns off system memory clock signals
+ * to unused SO-DIMM slots to reduce EMI and power consumption.
+ * However, the Kontron 986LCD-M does not like unused clock
+ * signals to be disabled.
+ * If other similar mainboard occur, it would make sense to make
+ * this an entry in the sysinfo structure, and pre-initialize that
+ * structure in the mainboard's auto.c main() function.
+ * For now an #ifdef will do.
+ */
+
+ clocks[0] = 0xf; /* force all clock gate pairs to enable */
+ clocks[1] = 0xf; /* force all clock gate pairs to enable */
#endif
MCHBAR8(C0DCLKDIS) = clocks[0];
MCHBAR8(C1DCLKDIS) = clocks[1];
}
+#define RTT_ODT_NONE 0
+#define RTT_ODT_50_OHM ( (1 << 9) | (1 << 5) )
#define RTT_ODT_75_OHM (1 << 5)
#define RTT_ODT_150_OHM (1 << 9)
@@ -2481,7 +2617,7 @@ static void sdram_jedec_enable(struct sys_info *sysinfo)
if (sysinfo->banksize[i] == 0) {
continue;
}
-
+
printk_debug("jedec enable sequence: bank %d\n", i);
switch (i) {
case 0:
@@ -2496,14 +2632,15 @@ static void sdram_jedec_enable(struct sys_info *sysinfo)
default:
if (nonzero != -1) {
printk_debug("bankaddr from bank size of rank %d\n", nonzero);
- bankaddr += (1 << sysinfo->banksize[nonzero]) << (sysinfo->interleaved?28:27);
+ bankaddr += sysinfo->banksize[nonzero] <<
+ (sysinfo->interleaved ? 26 : 25);
break;
}
/* No populated bank hit before. Start at address 0 */
bankaddr = 0;
}
- /* We have a bank with a non-zero size.. Remember it
+ /* We have a bank with a non-zero size.. Remember it
* for the next offset we have to calculate
*/
nonzero = i;
@@ -2524,9 +2661,11 @@ static void sdram_jedec_enable(struct sys_info *sysinfo)
default: die("Jedec Error (tWR).\n");
}
+ /* Set "Burst Type" */
+ mrsaddr |= MRS_BT;
+
/* Interleaved */
if (sysinfo->interleaved) {
- mrsaddr |= MRS_BT;
mrsaddr = mrsaddr << 1;
}
@@ -2572,7 +2711,7 @@ static void sdram_jedec_enable(struct sys_info *sysinfo)
tmpaddr = bankaddr;
tmpaddr |= mrsaddr;
/* Set DLL reset bit */
- if (sysinfo->interleaved)
+ if (sysinfo->interleaved)
tmpaddr |= (1 << 12);
else
tmpaddr |= (1 << 11);
@@ -2598,14 +2737,14 @@ static void sdram_jedec_enable(struct sys_info *sysinfo)
tmpaddr = bankaddr;
tmpaddr |= mrsaddr;
ram_read32(tmpaddr);
-
+
/* Extended Mode Register Set */
PRINTK_DEBUG("Extended Mode Register Set: ODT/OCD\n");
do_ram_command(RAM_COMMAND_EMRS | RAM_EMRS_1);
-
+
tmpaddr = bankaddr;
if (!sdram_capabilities_dual_channel()) {
-
+
tmpaddr |= RTT_ODT_75_OHM | EMRS_OCD_DEFAULT;
} else if (sysinfo->interleaved) {
tmpaddr |= ((RTT_ODT_150_OHM | EMRS_OCD_DEFAULT) << 1);
@@ -2647,13 +2786,10 @@ static void sdram_setup_processor_side(void)
MCHBAR32(SLPCTL) |= (1 << 8);
}
-#define BOOT_MODE_RESUME 1
-#define BOOT_MODE_NORMAL 0
-
/**
- * @param boot_mode: 0 = normal, 1 = resume
+ * @param boot_path: 0 = normal, 1 = reset, 2 = resume from s3
*/
-void sdram_initialize(int boot_mode)
+void sdram_initialize(int boot_path)
{
struct sys_info sysinfo;
u8 reg8, cas_mask;
@@ -2664,6 +2800,8 @@ void sdram_initialize(int boot_mode)
memset(&sysinfo, 0, sizeof(sysinfo));
+ sysinfo.boot_path = boot_path;
+
/* Look at the type of DIMMs and verify all DIMMs are x8 or x16 width */
sdram_get_dram_configuration(&sysinfo);
@@ -2672,36 +2810,36 @@ void sdram_initialize(int boot_mode)
/* Determine common CAS */
cas_mask = sdram_possible_cas_latencies(&sysinfo);
-
+
/* Choose Common Frequency */
sdram_detect_cas_latency_and_ram_speed(&sysinfo, cas_mask);
-
+
/* Determine smallest common tRAS */
sdram_detect_smallest_tRAS(&sysinfo);
-
+
/* Determine tRP */
sdram_detect_smallest_tRP(&sysinfo);
-
+
/* Determine tRCD */
sdram_detect_smallest_tRCD(&sysinfo);
-
+
/* Determine smallest refresh period */
sdram_detect_smallest_refresh(&sysinfo);
-
+
/* Verify all DIMMs support burst length 8 */
sdram_verify_burst_length(&sysinfo);
-
+
/* determine tWR */
sdram_detect_smallest_tWR(&sysinfo);
/* Determine DIMM size parameters (rows, columns banks) */
sdram_detect_dimm_size(&sysinfo);
-
+
/* determine tRFC */
sdram_detect_smallest_tRFC(&sysinfo);
-
+
/* Program PLL settings */
- sdram_program_pll_settings();
+ sdram_program_pll_settings(&sysinfo);
/* Program Graphics Frequency */
sdram_program_graphics_frequency(&sysinfo);
@@ -2711,10 +2849,10 @@ void sdram_initialize(int boot_mode)
/* Determine Mode of Operation (Interleaved etc) */
sdram_set_channel_mode(&sysinfo);
-
+
/* Program Clock Crossing values */
sdram_program_clock_crossing();
-
+
/* Disable fast dispatch */
sdram_disable_fast_dispatch();
@@ -2724,13 +2862,11 @@ void sdram_initialize(int boot_mode)
/* Program DRAM Row Boundary/Attribute Registers */
- if (boot_mode != BOOT_MODE_RESUME) {
- /* program row size DRB and set TOLUD */
- sdram_program_row_boundaries(&sysinfo);
-
- /* program page size DRA */
- sdram_set_row_attributes(&sysinfo);
- }
+ /* program row size DRB and set TOLUD */
+ sdram_program_row_boundaries(&sysinfo);
+
+ /* program page size DRA */
+ sdram_set_row_attributes(&sysinfo);
/* Program CxBNKARC */
sdram_set_bank_architecture(&sysinfo);
@@ -2753,7 +2889,7 @@ void sdram_initialize(int boot_mode)
/* Enable System Memory Clocks */
sdram_enable_memory_clocks(&sysinfo);
- if (boot_mode != BOOT_MODE_RESUME) {
+ if (boot_path == BOOT_PATH_NORMAL) {
/* Jedec Initialization sequence */
sdram_jedec_enable(&sysinfo);
}
@@ -2766,9 +2902,11 @@ void sdram_initialize(int boot_mode)
/* Program DRAM Throttling */
sdram_thermal_management();
-
+
/* Normal Operations */
- sdram_init_complete();
+ if (boot_path == BOOT_PATH_NORMAL) {
+ sdram_init_complete();
+ }
/* Program Receive Enable Timings */
sdram_program_receive_enable(&sysinfo);
@@ -2782,7 +2920,7 @@ void sdram_initialize(int boot_mode)
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa2, reg8);
printk_debug("RAM initialization finished.\n");
-
+
sdram_setup_processor_side();
}
diff --git a/src/northbridge/intel/i945/raminit.h b/src/northbridge/intel/i945/raminit.h
index deb07a6755..070b913947 100644
--- a/src/northbridge/intel/i945/raminit.h
+++ b/src/northbridge/intel/i945/raminit.h
@@ -47,6 +47,9 @@ struct sys_info {
u8 mvco4x; /* 0 (8x) or 1 (4x) */
u8 clkcfg_bit7;
u8 boot_path;
+#define BOOT_PATH_NORMAL 0
+#define BOOT_PATH_RESET 1
+#define BOOT_PATH_RESUME 2
u8 package; /* 0 = planar, 1 = stacked */
#define SYSINFO_PACKAGE_PLANAR 0x00
diff --git a/src/northbridge/intel/i945/rcven.c b/src/northbridge/intel/i945/rcven.c
index 47b4da7c8a..846af4f080 100644
--- a/src/northbridge/intel/i945/rcven.c
+++ b/src/northbridge/intel/i945/rcven.c
@@ -28,7 +28,7 @@ static u32 sample_strobes(int channel_offset, struct sys_info *sysinfo)
int i;
MCHBAR32(C0DRC1 + channel_offset) |= (1 << 6);
-
+
MCHBAR32(C0DRC1 + channel_offset) &= ~(1 << 6);
addr = 0;
@@ -43,7 +43,7 @@ static u32 sample_strobes(int channel_offset, struct sys_info *sysinfo)
for (i = 0; i < 28; i++) {
read32(addr);
- read32(addr + 0x80);
+ read32(addr + 0x80);
}
reg32 = MCHBAR32(RCVENMT);
@@ -68,12 +68,13 @@ static void set_receive_enable(int channel_offset, u8 medium, u8 coarse)
u32 reg32;
printk_spew(" set_receive_enable() medium=0x%x, coarse=0x%x\n", medium, coarse);
-
+
reg32 = MCHBAR32(C0DRT1 + channel_offset);
reg32 &= 0xf0ffffff;
reg32 |= ((u32)coarse & 0x0f) << 24;
MCHBAR32(C0DRT1 + channel_offset) = reg32;
-
+
+ /* This should never happen: */
if (coarse > 0x0f)
printk_debug("set_receive_enable: coarse overflow: 0x%02x.\n", coarse);
@@ -87,11 +88,11 @@ static void set_receive_enable(int channel_offset, u8 medium, u8 coarse)
reg32 = MCHBAR32(RCVENMT);
if (!channel_offset) {
-
+ /* Channel 0 */
reg32 &= ~(3 << 2);
reg32 |= medium << 2;
} else {
-
+ /* Channel 1 */
reg32 &= ~(3 << 0);
reg32 |= medium;
}
@@ -132,7 +133,6 @@ static int find_preamble(int channel_offset, u8 * mediumcoarse,
do {
if (*mediumcoarse < 4) {
-
printk_debug("No Preamble found.\n");
return -1;
}
@@ -143,10 +143,9 @@ static int find_preamble(int channel_offset, u8 * mediumcoarse,
reg32 = sample_strobes(channel_offset, sysinfo);
- } while (reg32 & (1 << 19));
+ } while (reg32 & (1 << 19));
- if (!(reg32 & (1 << 18))) {
-
+ if (!(reg32 & (1 << 18))) {
printk_debug("No Preamble found (neither high nor low).\n");
return -1;
}
@@ -188,7 +187,7 @@ static int find_strobes_low(int channel_offset, u8 * mediumcoarse, u8 * fine,
u32 rcvenmt;
printk_spew(" find_strobes_low()\n");
-
+
for (;;) {
MCHBAR8(C0WL0REOST + channel_offset) = *fine;
@@ -200,13 +199,12 @@ static int find_strobes_low(int channel_offset, u8 * mediumcoarse, u8 * fine,
if (((rcvenmt & (1 << 18)) != 0))
return 0;
-
*fine -= 0x80;
if (*fine == 0)
continue;
*mediumcoarse -= 2;
- if (*mediumcoarse < 0xfe)
+ if (*mediumcoarse < 0xfe)
continue;
break;
@@ -220,6 +218,7 @@ static int find_strobes_low(int channel_offset, u8 * mediumcoarse, u8 * fine,
static int find_strobes_edge(int channel_offset, u8 * mediumcoarse, u8 * fine,
struct sys_info *sysinfo)
{
+
int counter;
u32 rcvenmt;
@@ -249,7 +248,7 @@ static int find_strobes_edge(int channel_offset, u8 * mediumcoarse, u8 * fine,
}
continue;
}
-
+
*fine = 0;
*mediumcoarse += 2;
if (*mediumcoarse <= 0x40) {
@@ -258,25 +257,25 @@ static int find_strobes_edge(int channel_offset, u8 * mediumcoarse, u8 * fine,
continue;
}
- printk_debug("could not find rising edge.\n");
+ printk_debug("Could not find rising edge.\n");
return -1;
}
-
+
*fine -= 7;
- if (*fine >= 0xf9) {
+ if (*fine >= 0xf9) {
*mediumcoarse -= 2;
set_receive_enable(channel_offset, *mediumcoarse & 3,
*mediumcoarse >> 2);
}
- *fine &= ~(1 << 3);
+ *fine &= ~(1 << 3);
MCHBAR8(C0WL0REOST + channel_offset) = *fine;
return 0;
}
/**
- * Here we use a trick. The RCVEN channel 0 registers are all at an
+ * Here we use a trick. The RCVEN channel 0 registers are all at an
* offset of 0x80 to the channel 0 registers. We don't want to waste
* a lot of if()s so let's just pass 0 or 0x80 for the channel offset.
*/
@@ -291,7 +290,7 @@ static int receive_enable_autoconfig(int channel_offset,
channel_offset ? 1 : 0);
/* Set initial values */
- mediumcoarse = (sysinfo->cas << 2) | 3;
+ mediumcoarse = (sysinfo->cas << 2) | 3;
fine = 0;
if (find_strobes_low(channel_offset, &mediumcoarse, &fine, sysinfo))
@@ -336,3 +335,4 @@ void receive_enable_adjust(struct sys_info *sysinfo)
if (receive_enable_autoconfig(0x80, sysinfo))
return;
}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 03:33:51 +0000