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-rw-r--r--src/northbridge/amd/lx/Config.lb5
-rw-r--r--src/northbridge/amd/lx/chip.h7
-rw-r--r--src/northbridge/amd/lx/chipsetinit.c384
-rw-r--r--src/northbridge/amd/lx/grphinit.c43
-rw-r--r--src/northbridge/amd/lx/northbridge.c480
-rw-r--r--src/northbridge/amd/lx/northbridge.h6
-rw-r--r--src/northbridge/amd/lx/northbridgeinit.c808
-rw-r--r--src/northbridge/amd/lx/pll_reset.c85
-rw-r--r--src/northbridge/amd/lx/raminit.c143
-rw-r--r--src/northbridge/amd/lx/raminit.h10
10 files changed, 1971 insertions, 0 deletions
diff --git a/src/northbridge/amd/lx/Config.lb b/src/northbridge/amd/lx/Config.lb
new file mode 100644
index 0000000000..ee8cd206f9
--- /dev/null
+++ b/src/northbridge/amd/lx/Config.lb
@@ -0,0 +1,5 @@
+config chip.h
+object northbridge.o
+object northbridgeinit.o
+object chipsetinit.o
+object grphinit.o
diff --git a/src/northbridge/amd/lx/chip.h b/src/northbridge/amd/lx/chip.h
new file mode 100644
index 0000000000..1a237d7276
--- /dev/null
+++ b/src/northbridge/amd/lx/chip.h
@@ -0,0 +1,7 @@
+struct northbridge_amd_lx_config
+{
+ uint16_t irqmap;
+ int setupflash;
+};
+
+extern struct chip_operations northbridge_amd_lx_ops;
diff --git a/src/northbridge/amd/lx/chipsetinit.c b/src/northbridge/amd/lx/chipsetinit.c
new file mode 100644
index 0000000000..0178079795
--- /dev/null
+++ b/src/northbridge/amd/lx/chipsetinit.c
@@ -0,0 +1,384 @@
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bitops.h>
+#include "chip.h"
+#include "northbridge.h"
+#include <cpu/amd/lxdef.h>
+#include <cpu/x86/msr.h>
+#include <cpu/x86/cache.h>
+
+
+/* the structs in this file only set msr.lo. But ... that may not always be true */
+
+struct msrinit {
+ unsigned long msrnum;
+ msr_t msr;
+};
+
+/* Master Configuration Register for Bus Masters.*/
+struct msrinit SB_MASTER_CONF_TABLE[] = {
+ {USB1_SB_GLD_MSR_CONF, {.hi=0,.lo=0x00008f000}}, /* NOTE: Must be 1st entry in table*/
+ {USB2_SB_GLD_MSR_CONF, {.hi=0,.lo=0x00008f000}},
+ {ATA_SB_GLD_MSR_CONF, {.hi=0,.lo=0x00048f000}},
+ {AC97_SB_GLD_MSR_CONF, {.hi=0,.lo=0x00008f000}},
+ {MDD_SB_GLD_MSR_CONF, {.hi=0,.lo=0x00000f000}},
+/* GLPCI_SB_GLD_MSR_CONF, 0x0FFFFFFFF*/
+/* GLCP_SB_GLD_MSR_CONF, 0x0FFFFFFFF*/
+/* GLIU_SB_GLD_MSR_CONF, 0x0*/
+ {0,{0,0}}
+};
+
+/* 5535_A3 Clock Gating*/
+struct msrinit CS5535_CLOCK_GATING_TABLE[] = {
+ { USB1_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ { USB2_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ { GLIU_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000004}},
+ { GLPCI_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ { GLCP_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000004}},
+ { MDD_SB_GLD_MSR_PM, {.hi=0,.lo=0x050554111}},
+ { ATA_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ { AC97_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ {0,{0,0}}
+};
+
+/* 5536 Clock Gating*/
+struct msrinit CS5536_CLOCK_GATING_TABLE[] = {
+/* MSR Setting*/
+ { GLIU_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000004}},
+ { GLPCI_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ { GLCP_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000004}},
+ { MDD_SB_GLD_MSR_PM, {.hi=0,.lo=0x050554111}}, /* SMBus clock gating errata (PBZ 2226 & SiBZ 3977)*/
+ { ATA_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ { AC97_SB_GLD_MSR_PM, {.hi=0,.lo=0x000000005}},
+ {0,{0,0}}
+};
+
+struct acpiinit {
+ unsigned short ioreg;
+ unsigned long regdata;
+ unsigned short iolen;
+};
+
+struct acpiinit acpi_init_table[] = {
+ {ACPI_BASE+0x00, 0x01000000, 4},
+ {ACPI_BASE+0x08, 0, 4},
+ {ACPI_BASE+0x0C, 0, 4},
+ {ACPI_BASE+0x1C, 0, 4},
+ {ACPI_BASE+0x18, 0x0FFFFFFFF, 4},
+ {ACPI_BASE+0x00, 0x0000FFFF, 4},
+
+ {PM_SCLK, 0x000000E00, 4},
+ {PM_SED, 0x000004601, 4},
+ {PM_SIDD, 0x000008C02, 4},
+ {PM_WKD, 0x0000000A0, 4},
+ {PM_WKXD, 0x0000000A0, 4},
+ {0,0,0}
+};
+
+/* return 1 if we are a 5536-based system */
+static int is_5536(void){
+ msr_t msr;
+ msr = rdmsr(GLIU_SB_GLD_MSR_CAP);
+ msr.lo >>= 20;
+ printk_debug("is_5536: msr.lo is 0x%x(==5 means 5536)\n", msr.lo&0xf);
+ return ((msr.lo&0xf) == 5);
+}
+/* ***************************************************************************/
+/* **/
+/* * pmChipsetInit*/
+/* **/
+/* * Program ACPI LBAR and initialize ACPI registers.*/
+/* * */
+/* **/
+/* * Entry:*/
+/* * None*/
+/* **/
+/* * Exit:*/
+/* * None*/
+/* **/
+/* * Destroys:*/
+/* * None*/
+/* **/
+/* ***************************************************************************/
+static void
+pmChipsetInit(void) {
+ unsigned long val = 0;
+ unsigned short port;
+
+ port = (PMLogic_BASE + 0x010);
+ val = 0x0E00 ; /* 1ms*/
+ outl(val, port);
+
+ /* PM_WKXD*/
+ /* Make sure bits[3:0]=0000b to clear the*/
+ /* saved Sx state*/
+ port = (PMLogic_BASE + 0x034);
+ val = 0x0A0 ; /* 5ms*/
+ outl(val, port);
+
+ /* PM_WKD*/
+ port = (PMLogic_BASE + 0x030);
+ outl(val, port);
+
+ /* PM_SED*/
+ port = (PMLogic_BASE + 0x014);
+/* mov eax, 0x057642 ; 100ms, works*/
+ val = 0x04601 ; /* 5ms*/
+ outl(val, port);
+
+ /* PM_SIDD*/
+ port = (PMLogic_BASE + 0x020);
+/* mov eax, 0x0AEC84 ; 200ms, works*/
+ val = 0x08C02 ; /* 10ms*/
+ outl(val, port);
+
+ /* GPIO24 OUT_AUX1 function is the external signal for 5535's vsb_working_aux*/
+ /* which is de-asserted when 5535 enters Standby(S3 or S5) state.*/
+ /* On Hawk, GPIO24 controls all voltage rails except Vmem and Vstandby. This means*/
+ /* GX2 will be fully de-powered if this control de-asserts in S3/S5.*/
+ /* */
+ /* GPIO24 is setup in preChipsetInit for two reasons*/
+ /* 1. GPIO24 at reset defaults to disabled, since this signal is vsb_work_aux on*/
+ /* Hawk it controls the FET's for all voltage rails except Vstanby & Vmem.*/
+ /* BIOS needs to enable GPIO24 as OUT_AUX1 & OUTPUT_EN early so it is driven*/
+ /* by 5535.*/
+ /* 2. Non-PM builds will require GPIO24 enabled for instant-off power button*/
+ /* */
+
+ /* GPIO11 OUT_AUX1 function is the external signal for 5535's slp_clk_n which is asserted*/
+ /* when 5535 enters Sleep(S1) state.*/
+ /* On Hawk, GPIO11 is connected to control input of external clock generator*/
+ /* for 14MHz, PCI, USB & LPC clocks.*/
+ /* Programming of GPIO11 will be done by VSA PM code. During VSA Init. BIOS writes*/
+ /* PM Core Virual Register indicating if S1 Clocks should be On or Off. This is based*/
+ /* on a Setup item. We do not want to leave GPIO11 enabled because of a Hawk board*/
+ /* problem. With GPIO11 enabled in S3, something is back-driving GPIO11 causing it to*/
+ /* float to 1.6-1.7V.*/
+
+}
+
+struct FLASH_DEVICE {
+ unsigned char fType; /* Flash type: NOR or NAND */
+ unsigned char fInterface; /* Flash interface: I/O or Memory */
+ unsigned long fMask; /* Flash size/mask */
+};
+
+struct FLASH_DEVICE FlashInitTable[] = {
+ { FLASH_TYPE_NAND, FLASH_IF_MEM, FLASH_MEM_4K }, /* CS0, or Flash Device 0 */
+ { FLASH_TYPE_NONE, 0, 0 }, /* CS1, or Flash Device 1 */
+ { FLASH_TYPE_NONE, 0, 0 }, /* CS2, or Flash Device 2 */
+ { FLASH_TYPE_NONE, 0, 0 }, /* CS3, or Flash Device 3 */
+};
+
+#define FlashInitTableLen (sizeof(FlashInitTable)/sizeof(FlashInitTable[0]))
+
+uint32_t FlashPort[] = {
+ MDD_LBAR_FLSH0,
+ MDD_LBAR_FLSH1,
+ MDD_LBAR_FLSH2,
+ MDD_LBAR_FLSH3
+ };
+
+/***************************************************************************
+ *
+ * ChipsetFlashSetup
+ *
+ * Flash LBARs need to be setup before VSA init so the PCI BARs have
+ * correct size info. Call this routine only if flash needs to be
+ * configured (don't call it if you want IDE).
+ *
+ * Entry:
+ * Exit:
+ * Destroys:
+ *
+ **************************************************************************/
+static void ChipsetFlashSetup(void)
+{
+ msr_t msr;
+ int i;
+ int numEnabled = 0;
+
+ printk_debug("ChipsetFlashSetup++\n");
+ for (i = 0; i < FlashInitTableLen; i++) {
+ if (FlashInitTable[i].fType != FLASH_TYPE_NONE) {
+ printk_debug("Enable CS%d\n", i);
+ /* we need to configure the memory/IO mask */
+ msr = rdmsr(FlashPort[i]);
+ msr.hi = 0; /* start with the "enabled" bit clear */
+ if (FlashInitTable[i].fType == FLASH_TYPE_NAND)
+ msr.hi |= 0x00000002;
+ else
+ msr.hi &= ~0x00000002;
+ if (FlashInitTable[i].fInterface == FLASH_IF_MEM)
+ msr.hi |= 0x00000004;
+ else
+ msr.hi &= ~0x00000004;
+ msr.hi |= FlashInitTable[i].fMask;
+ printk_debug("WRMSR(0x%08X, %08X_%08X)\n", FlashPort[i], msr.hi, msr.lo);
+ wrmsr(FlashPort[i], msr);
+
+ /* now write-enable the device */
+ msr = rdmsr(MDD_NORF_CNTRL);
+ msr.lo |= (1 << i);
+ printk_debug("WRMSR(0x%08X, %08X_%08X)\n", MDD_NORF_CNTRL, msr.hi, msr.lo);
+ wrmsr(MDD_NORF_CNTRL, msr);
+
+ /* update the number enabled */
+ numEnabled++;
+ }
+ }
+
+ /* enable the flash */
+ if (0 != numEnabled) {
+ msr = rdmsr(MDD_PIN_OPT);
+ msr.lo &= ~1; /* PIN_OPT_IDE */
+ printk_debug("WRMSR(0x%08X, %08X_%08X)\n", MDD_PIN_OPT, msr.hi, msr.lo);
+ wrmsr(MDD_PIN_OPT, msr);
+ }
+ printk_debug("ChipsetFlashSetup--\n");
+
+}
+
+
+
+/* ***************************************************************************/
+/* **/
+/* * ChipsetGeodeLinkInit*/
+/* * Handle chipset specific GeodeLink settings here. */
+/* * Called from GeodeLink init code.*/
+/* **/
+/* * Entry:*/
+/* * Exit:*/
+/* * Destroys: GS*/
+/* **/
+/* ***************************************************************************/
+static void
+ChipsetGeodeLinkInit(void){
+ msr_t msr;
+ unsigned long msrnum;
+ unsigned long totalmem;
+
+ if (is_5536())
+ return;
+ /* SWASIF for A1 DMA */
+ /* Set all memory to "just above systop" PCI so DMA will work*/
+ /* check A1*/
+ msrnum = MSR_SB_GLCP + 0x17;
+ msr = rdmsr(msrnum);
+ if ((msr.lo&0xff) == 0x11)
+ return;
+
+ totalmem = sizeram() << 20 - 1;
+ totalmem >>= 12;
+ totalmem = ~totalmem;
+ totalmem &= 0xfffff;
+ msr.lo = totalmem;
+ msr.hi = 0x20000000; /* Port 1 (PCI)*/
+ msrnum = MSR_SB_GLIU + 0x20; /* */;
+ wrmsr(msrnum, msr);
+}
+
+void
+chipsetinit (struct northbridge_amd_lx_config *nb){
+ msr_t msr;
+ struct msrinit *csi;
+ int i;
+ unsigned long msrnum;
+
+ outb( P80_CHIPSET_INIT, 0x80);
+ ChipsetGeodeLinkInit();
+#if 0
+ /* we hope NEVER to be in linuxbios when S3 resumes
+ if (! IsS3Resume()) */
+ {
+ struct acpiinit *aci = acpi_init_table;
+ while (aci->ioreg){
+ if (aci->iolen == 2) {
+ outw(aci->regdata, aci->ioreg);
+ inw(aci->ioreg);
+ } else {
+ outl(aci->regdata, aci->ioreg);
+ inl(aci->ioreg);
+ }
+ }
+
+ pmChipsetInit();
+ }
+#endif
+
+
+ if (!is_5536()) {
+ /* Setup USB. Need more details. #118.18*/
+ msrnum = MSR_SB_USB1 + 8;
+ msr.lo = 0x00012090;
+ msr.hi = 0;
+ wrmsr(msrnum, msr);
+ msrnum = MSR_SB_USB2 + 8;
+ wrmsr(msrnum, msr);
+ }
+
+ /* set hd IRQ */
+ outl (GPIOL_2_SET, GPIOL_INPUT_ENABLE);
+ outl (GPIOL_2_SET, GPIOL_IN_AUX1_SELECT);
+
+ /* Allow IO read and writes during a ATA DMA operation.*/
+ /* This could be done in the HD rom but do it here for easier debugging.*/
+
+ msrnum = ATA_SB_GLD_MSR_ERR;
+ msr = rdmsr(msrnum);
+ msr.lo &= ~0x100;
+ wrmsr(msrnum, msr);
+
+ /* Enable Post Primary IDE.*/
+ msrnum = GLPCI_SB_CTRL;
+ msr = rdmsr(msrnum);
+ msr.lo |= GLPCI_CRTL_PPIDE_SET;
+ wrmsr(msrnum, msr);
+
+
+ /* Set up Master Configuration Register*/
+ /* If 5536, use same master config settings as 5535, except for OHCI MSRs*/
+ if (is_5536())
+ i = 2;
+ else
+ i = 0;
+
+ csi = &SB_MASTER_CONF_TABLE[i];
+ for(; csi->msrnum; csi++){
+ msr.lo = csi->msr.lo;
+ msr.hi = csi->msr.hi;
+ wrmsr(csi->msrnum, msr); // MSR - see table above
+ }
+
+
+ /* Flash Setup*/
+ printk_err("%sDOING ChipsetFlashSetup()!!!!!!!!!!!!!!!!!!\n", nb->setupflash? " " : "NOT");
+ if (nb->setupflash)
+ ChipsetFlashSetup();
+
+
+
+ /* */
+ /* Set up Hardware Clock Gating*/
+ /* */
+ /* if (getnvram(TOKEN_SB_CLK_GATE) != TVALUE_DISABLE) */
+ {
+ if (is_5536())
+ csi = CS5536_CLOCK_GATING_TABLE;
+ else
+ csi = CS5535_CLOCK_GATING_TABLE;
+
+ for(; csi->msrnum; csi++){
+ msr.lo = csi->msr.lo;
+ msr.hi = csi->msr.hi;
+ wrmsr(csi->msrnum, msr); // MSR - see table above
+ }
+ }
+
+}
diff --git a/src/northbridge/amd/lx/grphinit.c b/src/northbridge/amd/lx/grphinit.c
new file mode 100644
index 0000000000..4e0da1789d
--- /dev/null
+++ b/src/northbridge/amd/lx/grphinit.c
@@ -0,0 +1,43 @@
+#include <arch/io.h>
+#include <stdint.h>
+#include <cpu/amd/vr.h>
+
+#define VIDEO_MB 8 // MB of video memory
+
+/*
+ * Write to a Virtual Register
+ * AX = Class/Index
+ * CX = data to write
+ */
+void vrWrite(uint16_t wClassIndex, uint16_t wData)
+{
+ outl(((uint32_t) VR_UNLOCK << 16) | wClassIndex, VRC_INDEX);
+ outw(wData, VRC_DATA);
+}
+
+ /*
+ * Read from a Virtual Register
+ * AX = Class/Index
+ * Returns a 16-bit word of data
+ */
+uint16_t vrRead(uint16_t wClassIndex)
+{
+ uint16_t wData;
+ outl(((uint32_t) VR_UNLOCK << 16) | wClassIndex, VRC_INDEX);
+ wData = inw(VRC_DATA);
+ return wData;
+}
+
+/*
+ * This function mirrors the Graphics_Init routine in GeodeROM.
+ */
+void graphics_init(void)
+{
+ /* SoftVG initialization */
+
+ /* Call SoftVG with the main configuration parameters. */
+ /* NOTE: SoftVG expects the memory size to be given in 512 KB pages */
+ vrWrite((VRC_VG << 8) + VG_MEM_SIZE, 0x0100 | (VIDEO_MB * 2));
+}
+
+
diff --git a/src/northbridge/amd/lx/northbridge.c b/src/northbridge/amd/lx/northbridge.c
new file mode 100644
index 0000000000..2de9afc7b6
--- /dev/null
+++ b/src/northbridge/amd/lx/northbridge.c
@@ -0,0 +1,480 @@
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bitops.h>
+#include "chip.h"
+#include "northbridge.h"
+#include <cpu/amd/lxdef.h>
+#include <cpu/x86/msr.h>
+#include <cpu/x86/cache.h>
+#include <cpu/amd/vr.h>
+#define VIDEO_MB 8
+
+extern void graphics_init(void);
+
+#define NORTHBRIDGE_FILE "northbridge.c"
+
+/* todo: add a resource record. We don't do this here because this may be called when
+ * very little of the platform is actually working.
+ */
+int
+sizeram(void)
+{
+ msr_t msr;
+ int sizem = 0;
+ unsigned short dimm;
+
+ msr = rdmsr(0x20000018);
+ printk_debug("sizeram: %08x:%08x\n", msr.hi, msr.lo);
+
+ /* dimm 0 */
+ dimm = msr.hi;
+ /* installed? */
+ if ((dimm & 7) != 7)
+ sizem = (1 << ((dimm >> 12)-1)) * 8;
+
+
+ /* dimm 1*/
+ dimm = msr.hi >> 16;
+ /* installed? */
+ if ((dimm & 7) != 7)
+ sizem += (1 << ((dimm >> 12)-1)) * 8;
+
+ printk_debug("sizeram: sizem 0x%x\n", sizem);
+ return sizem;
+}
+
+
+/* here is programming for the various MSRs.*/
+#define IM_QWAIT 0x100000
+
+#define DMCF_WRITE_SERIALIZE_REQUEST (2<<12) /* 2 outstanding */ /* in high */
+#define DMCF_SERIAL_LOAD_MISSES (2) /* enabled */
+
+/* these are the 8-bit attributes for controlling RCONF registers */
+#define CACHE_DISABLE (1<<0)
+#define WRITE_ALLOCATE (1<<1)
+#define WRITE_PROTECT (1<<2)
+#define WRITE_THROUGH (1<<3)
+#define WRITE_COMBINE (1<<4)
+#define WRITE_SERIALIZE (1<<5)
+
+/* ram has none of this stuff */
+#define RAM_PROPERTIES (0)
+#define DEVICE_PROPERTIES (WRITE_SERIALIZE|CACHE_DISABLE)
+#define ROM_PROPERTIES (WRITE_SERIALIZE|WRITE_PROTECT|CACHE_DISABLE)
+#define MSR_WS_CD_DEFAULT (0x21212121)
+
+/* 1810-1817 give you 8 registers with which to program protection regions */
+/* the are region configuration range registers, or RRCF */
+/* in msr terms, the are a straight base, top address assign, since they are 4k aligned. */
+/* so no left-shift needed for top or base */
+#define RRCF_LOW(base,properties) (base|(1<<8)|properties)
+#define RRCF_LOW_CD(base) RRCF_LOW(base, CACHE_DISABLE)
+
+/* build initializer for P2D MSR */
+#define P2D_BM(msr, pdid1, bizarro, pbase, pmask) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(pbase>>24), .lo=(pbase<<8)|pmask}}
+#define P2D_BMO(msr, pdid1, bizarro, poffset, pbase, pmask) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(poffset<<8)|(pbase>>24), .lo=(pbase<<8)|pmask}}
+#define P2D_R(msr, pdid1, bizarro, pmax, pmin) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(pmax>>12), .lo=(pmax<<20)|pmin}}
+#define P2D_RO(msr, pdid1, bizarro, poffset, pmax, pmin) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(poffset<<8)|(pmax>>12), .lo=(pmax<<20)|pmin}}
+#define P2D_SC(msr, pdid1, bizarro, wen, ren,pscbase) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(wen), .lo=(ren<<16)|(pscbase>>18)}}
+#define IOD_BM(msr, pdid1, bizarro, ibase, imask) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(ibase>>12), .lo=(ibase<<20)|imask}}
+#define IOD_SC(msr, pdid1, bizarro, en, wen, ren, ibase) {msr, {.hi=(pdid1<<29)|(bizarro<<28), .lo=(en<<24)|(wen<<21)|(ren<<20)|(ibase<<3)}}
+
+
+
+struct msr_defaults {
+ int msr_no;
+ msr_t msr;
+} msr_defaults [] = {
+ {0x1700, {.hi = 0, .lo = IM_QWAIT}},
+ {0x1800, {.hi = DMCF_WRITE_SERIALIZE_REQUEST, .lo = DMCF_SERIAL_LOAD_MISSES}},
+ /* 1808 will be done down below, so we have to do 180a->1817 (well, 1813 really) */
+ /* for 180a, for now, we assume VSM will configure it */
+ /* 180b is left at reset value,a0000-bffff is non-cacheable */
+ /* 180c, c0000-dffff is set to write serialize and non-cachable */
+ /* oops, 180c will be set by cpu bug handling in cpubug.c */
+ //{0x180c, {.hi = MSR_WS_CD_DEFAULT, .lo = MSR_WS_CD_DEFAULT}},
+ /* 180d is left at default, e0000-fffff is non-cached */
+
+ /* we will assume 180e, the ssm region configuration, is left at default or set by VSM */
+ /* we will not set 0x180f, the DMM,yet */
+ //{0x1810, {.hi=0xee7ff000, .lo=RRCF_LOW(0xee000000, WRITE_COMBINE|CACHE_DISABLE)}},
+ //{0x1811, {.hi = 0xefffb000, .lo = RRCF_LOW_CD(0xefff8000)}},
+ //{0x1812, {.hi = 0xefff7000, .lo = RRCF_LOW_CD(0xefff4000)}},
+ //{0x1813, {.hi = 0xefff3000, .lo = RRCF_LOW_CD(0xefff0000)}},
+ /* now for GLPCI routing */
+ /* GLIU0 */
+ P2D_BM(0x10000020, 0x1, 0x0, 0x0, 0xfff80),
+ P2D_BM(0x10000021, 0x1, 0x0, 0x80000, 0xfffe0),
+ P2D_SC(0x1000002c, 0x1, 0x0, 0x0, 0xff03, 0xC0000),
+ /* GLIU1 */
+ P2D_BM(0x40000020, 0x1, 0x0, 0x0, 0xfff80),
+ P2D_BM(0x40000021, 0x1, 0x0, 0x80000, 0xfffe0),
+ P2D_SC(0x4000002e, 0x1, 0x0, 0x0, 0xff03, 0xC0000), // GX3 0x4000002d -> 0x4000002e
+ {0}
+};
+
+/* note that dev is NOT used -- yet */
+static void irq_init_steering(struct device *dev, uint16_t irq_map) {
+ /* Set up IRQ steering */
+ uint32_t pciAddr = 0x80000000 | (CHIPSET_DEV_NUM << 11) | 0x5C;
+
+ printk_debug("%s(%08X [%08X], %04X)\n", __FUNCTION__, dev, pciAddr, irq_map);
+
+ /* The IRQ steering values (in hex) are effectively dcba, where:
+ * <a> represents the IRQ for INTA,
+ * <b> represents the IRQ for INTB,
+ * <c> represents the IRQ for INTC, and
+ * <d> represents the IRQ for INTD.
+ * Thus, a value of irq_map = 0xAA5B translates to:
+ * INTA = IRQB (IRQ 11)
+ * INTB = IRQ5 (IRQ 5)
+ * INTC = IRQA (IRQ 10)
+ * INTD = IRQA (IRQ 10)
+ */
+ outl(pciAddr & ~3, 0xCF8);
+ outl(irq_map, 0xCFC);
+}
+
+
+/*
+ * setup_lx_cache
+ *
+ * Returns the amount of memory (in KB) available to the system. This is the
+ * total amount of memory less the amount of memory reserved for SMM use.
+ *
+ */
+static int
+setup_lx_cache(void)
+{
+ msr_t msr;
+ unsigned long long val;
+ int sizekbytes, sizereg;
+
+ sizekbytes = sizeram() * 1024;
+ printk_debug("setup_lx_cache: enable for %d KB\n", sizekbytes);
+ /* build up the rconf word. */
+ /* the SYSTOP bits 27:8 are actually the top bits from 31:12. Book fails to say that */
+ /* set romrp */
+ val = ((unsigned long long) ROM_PROPERTIES) << 56;
+ /* make rom base useful for 1M roms */
+ /* Flash base address -- sized for 1M for now*/
+ val |= ((unsigned long long) 0xfff00)<<36;
+ /* set the devrp properties */
+ val |= ((unsigned long long) DEVICE_PROPERTIES) << 28;
+ /* Take our TOM, RIGHT shift 12, since it page-aligned, then LEFT-shift 8 for reg. */
+ /* yank off memory for the SMM handler */
+ sizekbytes -= SMM_SIZE;
+ sizereg = sizekbytes;
+ sizereg *= 1024; // convert to bytes
+ sizereg >>= 12;
+ sizereg <<= 8;
+ val |= sizereg;
+ val |= RAM_PROPERTIES;
+ msr.lo = val;
+ msr.hi = (val >> 32);
+ printk_debug("msr 0x%08X will be set to %08x:%08x\n", CPU_RCONF_DEFAULT, msr.hi, msr.lo);
+ wrmsr(CPU_RCONF_DEFAULT, msr);
+
+ enable_cache();
+ wbinvd();
+ return sizekbytes;
+}
+
+/* we have to do this here. We have not found a nicer way to do it */
+void
+setup_lx(void)
+{
+
+ unsigned long tmp, tmp2;
+ msr_t msr;
+ unsigned long size_kb, membytes;
+
+ size_kb = setup_lx_cache();
+
+ membytes = size_kb * 1024;
+ /* NOTE! setup_lx_cache returns the SIZE OF RAM - RAMADJUST!
+ * so it is safe to use. You should NOT at this point call
+ * sizeram() directly.
+ */
+
+ /* we need to set 0x10000028 and 0x40000029 */
+ /*
+ * These two descriptors cover the range from 1 MB (0x100000) to
+ * SYSTOP (a.k.a. TOM, or Top of Memory)
+ */
+
+#if 0
+ /* This has already been done elsewhere */
+ printk_debug("size_kb 0x%x, membytes 0x%x\n", size_kb, membytes);
+ msr.hi = 0x20000000 | membytes>>24;
+ msr.lo = 0x100 | ( ((membytes >>12) & 0xfff) << 20);
+ wrmsr(0x10000028, msr);
+ msr.hi = 0x20000000 | membytes>>24;
+ msr.lo = 0x100 | ( ((membytes >>12) & 0xfff) << 20);
+ wrmsr(0x40000029, msr);
+#endif
+#if 0
+ msr = rdmsr(0x10000028);
+ printk_debug("MSR 0x%x is now 0x%x:0x%x\n", 0x10000028, msr.hi,msr.lo);
+ msr = rdmsr(0x40000029);
+ printk_debug("MSR 0x%x is now 0x%x:0x%x\n", 0x40000029, msr.hi,msr.lo);
+#endif
+#if 1
+ /* 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);
+#endif
+#if 0
+
+ msr.hi = 0x2cfbc040;
+ msr.lo = 0x400fffc0;
+ wrmsr(0x10000026, msr);
+ msr = rdmsr(0x10000026);
+ printk_debug("MSR 0x%x is now 0x%x:0x%x\n", 0x10000026, msr.hi, msr.lo);
+#endif
+#if 0
+ msr.hi = 0x22fffc02;
+ msr.lo = 0x10ffbf00;
+ wrmsr(0x1808, msr);
+ msr = rdmsr(0x1808);
+ printk_debug("MSR 0x%x is now 0x%x:0x%x\n", 0x1808, msr.hi, msr.lo);
+#endif
+#if 0 // SDG - don't do this
+ /* now do the default MSR values */
+ for(i = 0; msr_defaults[i].msr_no; i++) {
+ msr_t msr;
+ wrmsr(msr_defaults[i].msr_no, msr_defaults[i].msr); // MSR - see table above
+ msr = rdmsr(msr_defaults[i].msr_no);
+ printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", msr_defaults[i].msr_no, msr.hi,msr.lo);
+ }
+#endif
+}
+
+static void enable_shadow(device_t dev)
+{
+
+}
+
+static void northbridge_init(device_t dev)
+{
+ struct northbridge_amd_lx_config *nb = (struct northbridge_amd_lx_config *)dev->chip_info;
+ printk_debug("northbridge: %s()\n", __FUNCTION__);
+
+ enable_shadow(dev);
+ irq_init_steering(dev, nb->irqmap);
+}
+
+static struct device_operations northbridge_operations = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = northbridge_init,
+ .enable = 0,
+ .ops_pci = 0,
+};
+
+static struct pci_driver northbridge_driver __pci_driver = {
+ .ops = &northbridge_operations,
+ .vendor = PCI_VENDOR_ID_AMD,
+ .device = PCI_DEVICE_ID_AMD_LX,
+};
+
+#define BRIDGE_IO_MASK (IORESOURCE_IO | IORESOURCE_MEM)
+
+static void pci_domain_read_resources(device_t dev)
+{
+ struct resource *resource;
+
+ printk_spew("%s:%s()\n", NORTHBRIDGE_FILE, __FUNCTION__);
+
+ /* Initialize the system wide io space constraints */
+ resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0,0));
+ resource->limit = 0xffffUL;
+ resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
+
+ /* Initialize the system wide memory resources constraints */
+ resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1,0));
+ resource->limit = 0xffffffffULL;
+ resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
+}
+
+static void ram_resource(device_t dev, unsigned long index,
+ unsigned long basek, unsigned long sizek)
+{
+ struct resource *resource;
+
+ if (!sizek) {
+ return;
+ }
+ resource = new_resource(dev, index);
+ resource->base = ((resource_t)basek) << 10;
+ resource->size = ((resource_t)sizek) << 10;
+ resource->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE | \
+ IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+}
+
+static void tolm_test(void *gp, struct device *dev, struct resource *new)
+{
+ struct resource **best_p = gp;
+ struct resource *best;
+ best = *best_p;
+ if (!best || (best->base > new->base)) {
+ best = new;
+ }
+ *best_p = best;
+}
+
+#if 0
+static uint32_t find_pci_tolm(struct bus *bus)
+{
+ struct resource *min;
+ uint32_t tolm;
+ min = 0;
+ search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM, tolm_test, &min);
+ tolm = 0xffffffffUL;
+ if (min && tolm > min->base) {
+ tolm = min->base;
+ }
+ return tolm;
+}
+#endif
+#define FRAMEBUFFERK 4096
+
+static void pci_domain_set_resources(device_t dev)
+{
+#if 0
+ device_t mc_dev;
+ uint32_t pci_tolm;
+
+ pci_tolm = find_pci_tolm(&dev->link[0]);
+ mc_dev = dev->link[0].children;
+ if (mc_dev) {
+ unsigned int tomk, tolmk;
+ unsigned int ramreg = 0;
+ int i, idx;
+ unsigned int *bcdramtop = (unsigned int *)(GX_BASE + BC_DRAM_TOP);
+ unsigned int *mcgbaseadd = (unsigned int *)(GX_BASE + MC_GBASE_ADD);
+
+ for(i=0; i<0x20; i+= 0x10) {
+ unsigned int *mcreg = (unsigned int *)(GX_BASE + MC_BANK_CFG);
+ unsigned int mem_config = *mcreg;
+
+ if (((mem_config & (DIMM_PG_SZ << i)) >> (4 + i)) == 7)
+ continue;
+ ramreg += 1 << (((mem_config & (DIMM_SZ << i)) >> (i + 8)) + 2);
+ }
+
+ tomk = ramreg << 10;
+
+ /* Sort out the framebuffer size */
+ tomk -= FRAMEBUFFERK;
+ *bcdramtop = ((tomk << 10) - 1);
+ *mcgbaseadd = (tomk >> 9);
+
+ printk_debug("BC_DRAM_TOP = 0x%08x\n", *bcdramtop);
+ printk_debug("MC_GBASE_ADD = 0x%08x\n", *mcgbaseadd);
+
+ printk_debug("I would set ram size to %d Mbytes\n", (tomk >> 10));
+
+ /* Compute the top of Low memory */
+ tolmk = pci_tolm >> 10;
+ if (tolmk >= tomk) {
+ /* The PCI hole does does not overlap the memory.
+ */
+ tolmk = tomk;
+ }
+ /* Report the memory regions */
+ idx = 10;
+ ram_resource(dev, idx++, 0, tolmk);
+ }
+#endif
+ assign_resources(&dev->link[0]);
+}
+
+static unsigned int pci_domain_scan_bus(device_t dev, unsigned int max)
+{
+ max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
+ return max;
+}
+
+static struct device_operations pci_domain_ops = {
+ .read_resources = pci_domain_read_resources,
+ .set_resources = pci_domain_set_resources,
+ .enable_resources = enable_childrens_resources,
+ .init = 0,
+ .scan_bus = pci_domain_scan_bus,
+};
+
+static void cpu_bus_init(device_t dev)
+{
+ initialize_cpus(&dev->link[0]);
+}
+
+static void cpu_bus_noop(device_t dev)
+{
+}
+
+static struct device_operations cpu_bus_ops = {
+ .read_resources = cpu_bus_noop,
+ .set_resources = cpu_bus_noop,
+ .enable_resources = cpu_bus_noop,
+ .init = cpu_bus_init,
+ .scan_bus = 0,
+};
+
+void chipsetInit (void);
+
+static void enable_dev(struct device *dev)
+{
+ printk_debug("lx north: enable_dev\n");
+ void northbridgeinit(void);
+ void chipsetinit(struct northbridge_amd_lx_config *nb);
+ void setup_realmode_idt(void);
+ void do_vsmbios(void);
+ /* Set the operations if it is a special bus type */
+ if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) {
+ struct northbridge_amd_lx_config *nb = (struct northbridge_amd_lx_config *)dev->chip_info;
+ extern void cpubug(void);
+ printk_debug("DEVICE_PATH_PCI_DOMAIN\n");
+ /* cpubug MUST be called before setup_lx(), so we force the issue here */
+ northbridgeinit();
+ cpubug();
+ chipsetinit(nb);
+ setup_lx();
+ /* do this here for now -- this chip really breaks our device model */
+ setup_realmode_idt();
+ do_vsmbios();
+ graphics_init();
+ dev->ops = &pci_domain_ops;
+ pci_set_method(dev);
+ ram_resource(dev, 0, 0, ((sizeram() - VIDEO_MB) * 1024) - SMM_SIZE);
+ } else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
+ printk_debug("DEVICE_PATH_APIC_CLUSTER\n");
+ dev->ops = &cpu_bus_ops;
+ }
+ printk_debug("lx north: end enable_dev\n");
+}
+
+struct chip_operations northbridge_amd_lx_ops = {
+ CHIP_NAME("AMD LX Northbridge")
+ .enable_dev = enable_dev,
+};
diff --git a/src/northbridge/amd/lx/northbridge.h b/src/northbridge/amd/lx/northbridge.h
new file mode 100644
index 0000000000..391fbf3177
--- /dev/null
+++ b/src/northbridge/amd/lx/northbridge.h
@@ -0,0 +1,6 @@
+#ifndef NORTHBRIDGE_AMD_LX_H
+#define NORTHBRIDGE_AMD_LX_H
+
+extern unsigned int lx_scan_root_bus(device_t root, unsigned int max);
+
+#endif /* NORTHBRIDGE_AMD_LX_H */
diff --git a/src/northbridge/amd/lx/northbridgeinit.c b/src/northbridge/amd/lx/northbridgeinit.c
new file mode 100644
index 0000000000..08b8816610
--- /dev/null
+++ b/src/northbridge/amd/lx/northbridgeinit.c
@@ -0,0 +1,808 @@
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bitops.h>
+#include "chip.h"
+#include "northbridge.h"
+#include <cpu/amd/lxdef.h>
+#include <cpu/x86/msr.h>
+#include <cpu/x86/cache.h>
+
+/* put this here for now, we are not sure where it belongs */
+
+struct gliutable {
+ unsigned long desc_name;
+ unsigned short desc_type;
+ unsigned long hi, lo;
+};
+
+struct gliutable gliu0table[] = {
+ {.desc_name=MSR_GLIU0_BASE1, .desc_type= BM,.hi= MSR_MC + 0x0,.lo= 0x0FFF80}, /* 0-7FFFF to MC*/
+ {.desc_name=MSR_GLIU0_BASE2, .desc_type= BM,.hi= MSR_MC + 0x0,.lo=(0x80 << 20) + 0x0FFFE0}, /* 80000-9ffff to Mc*/
+ {.desc_name=MSR_GLIU0_SHADOW, .desc_type= SC_SHADOW,.hi= MSR_MC + 0x0,.lo= 0x03}, /* C0000-Fffff split to MC and PCI (sub decode) A0000-Bffff handled by SoftVideo*/
+ {.desc_name=MSR_GLIU0_SYSMEM, .desc_type= R_SYSMEM,.hi= MSR_MC,.lo= 0x0}, /* Catch and fix dynamicly.*/
+ {.desc_name=MSR_GLIU0_DMM, .desc_type= BMO_DMM,.hi= MSR_MC,.lo= 0x0}, /* Catch and fix dynamicly.*/
+ {.desc_name=MSR_GLIU0_SMM, .desc_type= BMO_SMM,.hi= MSR_MC,.lo= 0x0}, /* Catch and fix dynamicly.*/
+ {.desc_name=GLIU0_GLD_MSR_COH,.desc_type= OTHER,.hi= 0x0,.lo= GL0_CPU},
+ {.desc_name=GL_END, .desc_type= GL_END,.hi= 0x0,.lo= 0x0},
+};
+
+
+struct gliutable gliu1table[] = {
+ {.desc_name=MSR_GLIU1_BASE1,.desc_type= BM,.hi= MSR_GL0 + 0x0,.lo= 0x0FFF80}, /* 0-7FFFF to MC*/
+ {.desc_name=MSR_GLIU1_BASE2,.desc_type= BM,.hi= MSR_GL0 + 0x0,.lo= (0x80 << 20) +0x0FFFE0}, /* 80000-9ffff to Mc*/
+ {.desc_name=MSR_GLIU1_SHADOW,.desc_type= SC_SHADOW,.hi= MSR_GL0 + 0x0,.lo= 0x03}, /* C0000-Fffff split to MC and PCI (sub decode)*/
+ {.desc_name=MSR_GLIU1_SYSMEM,.desc_type= R_SYSMEM,.hi= MSR_GL0,.lo= 0x0}, /* Cat0xc and fix dynamicly.*/
+ {.desc_name=MSR_GLIU1_DMM,.desc_type= BM_DMM,.hi= MSR_GL0,.lo= 0x0}, /* Cat0xc and fix dynamicly.*/
+ {.desc_name=MSR_GLIU1_SMM,.desc_type= BM_SMM,.hi= MSR_GL0,.lo= 0x0}, /* Cat0xc and fix dynamicly.*/
+ {.desc_name=GLIU1_GLD_MSR_COH,.desc_type= OTHER,.hi= 0x0,.lo= GL1_GLIU0},
+ {.desc_name=MSR_GLIU1_FPU_TRAP,.desc_type= SCIO,.hi= (GL1_GLCP << 29) + 0x0,.lo= 0x033000F0}, /* FooGlue FPU 0xF0*/
+ {.desc_name=GL_END,.desc_type= GL_END,.hi= 0x0,.lo= 0x0},
+};
+
+struct gliutable *gliutables[] = {gliu0table, gliu1table, 0};
+
+struct msrinit {
+ unsigned long msrnum;
+ msr_t msr;
+};
+
+struct msrinit ClockGatingDefault [] = {
+ {GLIU0_GLD_MSR_PM, {.hi=0x00,.lo=0x0005}},
+ /* MC must stay off in SDR mode. It is turned on in CPUBug??? lotus #77.142*/
+ {MC_GLD_MSR_PM, {.hi=0x00,.lo=0x0000}},
+ {GLIU1_GLD_MSR_PM, {.hi=0x00,.lo=0x0005}},
+ {VG_GLD_MSR_PM, {.hi=0x00,.lo=0x0000}}, /* lotus #77.163*/
+ {GP_GLD_MSR_PM, {.hi=0x00,.lo=0x0001}},
+ /*{DF_GLD_MSR_PM, {.hi=0x00,.lo=0x0155}},*/ //GX3
+ {GLCP_GLD_MSR_PM, {.hi=0x00,.lo=0x0015}},
+ {GLPCI_GLD_MSR_PM, {.hi=0x00,.lo=0x0015}},
+ /*{FG_GLD_MSR_PM, {.hi=0x00,.lo=0x0000}}, */ /* Always on*/ //GX3
+ {0xffffffff, {0xffffffff, 0xffffffff}},
+};
+ /* All On*/
+struct msrinit ClockGatingAllOn[] = {
+ {GLIU0_GLD_MSR_PM, {.hi=0x00,.lo=0x0FFFFFFFF}},
+ {MC_GLD_MSR_PM, {.hi=0x00,.lo=0x0FFFFFFFF}},
+ {GLIU1_GLD_MSR_PM, {.hi=0x00,.lo=0x0FFFFFFFF}},
+ {VG_GLD_MSR_PM, {.hi=0x00, .lo=0x00}},
+ {GP_GLD_MSR_PM, {.hi=0x00,.lo=0x000000001}},
+ /*{DF_GLD_MSR_PM, {.hi=0x00,.lo=0x0FFFFFFFF}}, */ //GX3
+ {GLCP_GLD_MSR_PM, {.hi=0x00,.lo=0x0FFFFFFFF}},
+ {GLPCI_GLD_MSR_PM, {.hi=0x00,.lo=0x0FFFFFFFF}},
+ /*{FG_GLD_MSR_PM, {.hi=0x00,.lo=0x0000}}, */ //GX3
+ {0xffffffff, {0xffffffff, 0xffffffff}},
+};
+
+ /* Performance*/
+struct msrinit ClockGatingPerformance[] = {
+ {VG_GLD_MSR_PM, {.hi=0x00,.lo=0x0000}}, /* lotus #77.163*/
+ {GP_GLD_MSR_PM, {.hi=0x00,.lo=0x0001}},
+ /*{DF_GLD_MSR_PM, {.hi=0x00,.lo=0x0155}}, */ //GX3
+ {GLCP_GLD_MSR_PM, {.hi=0x00,.lo=0x0015}},
+ {0xffffffff, {0xffffffff, 0xffffffff}},
+};
+/* */
+/* SET GeodeLink PRIORITY*/
+/* */
+struct msrinit GeodeLinkPriorityTable [] = {
+ {CPU_GLD_MSR_CONFIG, {.hi=0x00,.lo=0x0220}}, /* CPU Priority.*/
+ /*{DF_GLD_MSR_MASTER_CONF, {.hi=0x00,.lo=0x0000}},*/ /* DF Priority.*/ //GX3
+ {VG_GLD_MSR_CONFIG, {.hi=0x00,.lo=0x0720}}, /* VG Primary and Secondary Priority.*/
+ {GP_GLD_MSR_CONFIG, {.hi=0x00,.lo=0x0010}}, /* Graphics Priority.*/
+ {GLPCI_GLD_MSR_CONFIG, {.hi=0x00,.lo=0x0027}}, /* GLPCI Priority + PID*/
+ {GLCP_GLD_MSR_CONF, {.hi=0x00,.lo=0x0001}}, /* GLCP Priority + PID*/
+ {VIP_GLD_MSR_CONFIG, {.hi=0x00,.lo=0x0622}}, /* VIP PID*/
+ {AES_GLD_MSR_CONFIG, {.hi=0x00,.lo=0x0013}}, /* AES PID*/
+ {0x0FFFFFFFF, {0x0FFFFFFFF, 0x0FFFFFFFF}}, /* END*/
+};
+
+/* do we have dmi or not? assume NO per AMD */
+int havedmi = 0;
+
+static void
+writeglmsr(struct gliutable *gl){
+ msr_t msr;
+
+ msr.lo = gl->lo;
+ msr.hi = gl->hi;
+ wrmsr(gl->desc_name, msr); // MSR - see table above
+ printk_debug("%s: write msr 0x%08x, val 0x%08x:0x%08x\n", __FUNCTION__, gl->desc_name, msr.hi, msr.lo);
+ /* they do this, so we do this */
+ msr = rdmsr(gl->desc_name);
+ printk_debug("%s: AFTER write msr 0x%08x, val 0x%08x:0x%08x\n", __FUNCTION__, gl->desc_name, msr.hi, msr.lo);
+}
+
+static void
+ShadowInit(struct gliutable *gl)
+{
+ msr_t msr;
+
+ msr = rdmsr(gl->desc_name);
+
+ if (msr.lo == 0) {
+ writeglmsr(gl);
+ }
+}
+
+/* NOTE: transcribed from assembly code. There is the usual redundant assembly nonsense in here.
+ * CLEAN ME UP
+ */
+/* yes, this duplicates later code, but it seems that is how they want it done.
+ */
+extern int sizeram(void);
+static void
+SysmemInit(struct gliutable *gl)
+{
+ msr_t msr;
+ int sizembytes, sizebytes;
+
+ /*
+ * Figure out how much RAM is in the machine and alocate all to the
+ * system. We will adjust for SMM and DMM now and Frame Buffer later.
+ */
+ sizembytes = sizeram();
+ printk_debug("%s: enable for %dm bytes\n", __FUNCTION__, sizembytes);
+ sizebytes = sizembytes << 20;
+
+ sizebytes -= SMM_SIZE*1024 +1;
+
+ if (havedmi)
+ sizebytes -= DMM_SIZE * 1024 + 1;
+
+ sizebytes -= 1;
+ msr.hi = (gl->hi & 0xFFFFFF00) | (sizebytes >> 24);
+ /* set up sizebytes to fit into msr.lo */
+ sizebytes <<= 8; /* what? well, we want bits 23:12 in bits 31:20. */
+ sizebytes &= 0xfff00000;
+ sizebytes |= 0x100;
+ msr.lo = sizebytes;
+ wrmsr(gl->desc_name, msr); // MSR - see table above
+ msr = rdmsr(gl->desc_name);
+ printk_debug("%s: AFTER write msr 0x%08x, val 0x%08x:0x%08x\n", __FUNCTION__,
+ gl->desc_name, msr.hi, msr.lo);
+
+}
+static void
+DMMGL0Init(struct gliutable *gl) {
+ msr_t msr;
+ int sizebytes = sizeram()<<20;
+ long offset;
+
+ if (! havedmi)
+ return;
+
+ printk_debug("%s: %d bytes\n", __FUNCTION__, sizebytes);
+
+ sizebytes -= DMM_SIZE*1024;
+ offset = sizebytes - DMM_OFFSET;
+ printk_debug("%s: offset is 0x%08x\n", __FUNCTION__, offset);
+ offset >>= 12;
+ msr.hi = (gl->hi) | (offset << 8);
+ /* I don't think this is needed */
+ msr.hi &= 0xffffff00;
+ msr.hi |= (DMM_OFFSET >> 24);
+ msr.lo = DMM_OFFSET << 8;
+ msr.lo |= ((~(DMM_SIZE*1024)+1)>>12)&0xfffff;
+
+ wrmsr(gl->desc_name, msr); // MSR - See table above
+ msr = rdmsr(gl->desc_name);
+ printk_debug("%s: AFTER write msr 0x%08x, val 0x%08x:0x%08x\n", __FUNCTION__, gl->desc_name, msr.hi, msr.lo);
+
+}
+static void
+DMMGL1Init(struct gliutable *gl) {
+ msr_t msr;
+
+ if (! havedmi)
+ return;
+
+ printk_debug("%s:\n", __FUNCTION__ );
+
+ msr.hi = gl->hi;
+ /* I don't think this is needed */
+ msr.hi &= 0xffffff00;
+ msr.hi |= (DMM_OFFSET >> 24);
+ msr.lo = DMM_OFFSET << 8;
+ /* hmm. AMD source has SMM here ... SMM, not DMM? We think DMM */
+ printk_err("%s: warning, using DMM_SIZE even though AMD used SMM_SIZE\n", __FUNCTION__);
+ msr.lo |= ((~(DMM_SIZE*1024)+1)>>12)&0xfffff;
+
+ wrmsr(gl->desc_name, msr); // MSR - See table above
+ msr = rdmsr(gl->desc_name);
+ printk_debug("%s: AFTER write msr 0x%08x, val 0x%08x:0x%08x\n", __FUNCTION__, gl->desc_name, msr.hi, msr.lo);
+}
+static void
+SMMGL0Init(struct gliutable *gl) {
+ msr_t msr;
+ int sizebytes = sizeram()<<20;
+ long offset;
+
+ sizebytes -= SMM_SIZE*1024;
+
+ if (havedmi)
+ sizebytes -= DMM_SIZE * 1024;
+
+ printk_debug("%s: %d bytes\n", __FUNCTION__, sizebytes);
+
+ offset = sizebytes - SMM_OFFSET;
+ printk_debug("%s: offset is 0x%08x\n", __FUNCTION__, offset);
+ offset >>= 12;
+
+ msr.hi = offset << 8;
+ msr.hi |= SMM_OFFSET>>24;
+
+ msr.lo = SMM_OFFSET << 8;
+ msr.lo |= ((~(SMM_SIZE*1024)+1)>>12)&0xfffff;
+
+ wrmsr(gl->desc_name, msr); // MSR - See table above
+ msr = rdmsr(gl->desc_name);
+ printk_debug("%s: AFTER write msr 0x%08x, val 0x%08x:0x%08x\n", __FUNCTION__, gl->desc_name, msr.hi, msr.lo);
+}
+static void
+SMMGL1Init(struct gliutable *gl) {
+ msr_t msr;
+ printk_debug("%s:\n", __FUNCTION__ );
+
+ msr.hi = gl->hi;
+ /* I don't think this is needed */
+ msr.hi &= 0xffffff00;
+ msr.hi |= (SMM_OFFSET >> 24);
+ msr.lo = SMM_OFFSET << 8;
+ msr.lo |= ((~(SMM_SIZE*1024)+1)>>12)&0xfffff;
+
+ wrmsr(gl->desc_name, msr); // MSR - See table above
+ msr = rdmsr(gl->desc_name);
+ printk_debug("%s: AFTER write msr 0x%08x, val 0x%08x:0x%08x\n", __FUNCTION__, gl->desc_name, msr.hi, msr.lo);
+}
+
+static void
+GLIUInit(struct gliutable *gl){
+
+ while (gl->desc_type != GL_END){
+ switch(gl->desc_type){
+ default:
+ /* For Unknown types: Write then read MSR */
+ writeglmsr(gl);
+ case SC_SHADOW: /* Check for a Shadow entry*/
+ ShadowInit(gl);
+ break;
+
+ case R_SYSMEM: /* check for a SYSMEM entry*/
+ SysmemInit(gl);
+ break;
+
+ case BMO_DMM: /* check for a DMM entry*/
+ DMMGL0Init(gl);
+ break;
+
+ case BM_DMM : /* check for a DMM entry*/
+ DMMGL1Init(gl);
+ break;
+
+ case BMO_SMM : /* check for a SMM entry*/
+ SMMGL0Init(gl);
+ break;
+
+ case BM_SMM : /* check for a SMM entry*/
+ SMMGL1Init(gl);
+ break;
+ }
+ gl++;
+ }
+
+}
+ /* ***************************************************************************/
+ /* **/
+ /* * GLPCIInit*/
+ /* **/
+ /* * Set up GLPCI settings for reads/write into memory*/
+ /* * R0: 0-640KB,*/
+ /* * R1: 1MB - Top of System Memory*/
+ /* * R2: SMM Memory*/
+ /* * R3: Framebuffer? - not set up yet*/
+ /* * R4: ??*/
+ /* **/
+ /* * Entry:*/
+ /* * Exit:*/
+ /* * Modified:*/
+ /* **/
+ /* ***************************************************************************/
+static void GLPCIInit(void){
+ struct gliutable *gl = 0;
+ int i;
+ msr_t msr;
+ int msrnum;
+
+ /* */
+ /* R0 - GLPCI settings for Conventional Memory space.*/
+ /* */
+ msr.hi = (0x09F000 >> 12) << GLPCI_RC_UPPER_TOP_SHIFT /* 640*/;
+ msr.lo = 0 /* 0*/;
+ msr.lo |= GLPCI_RC_LOWER_EN_SET+ GLPCI_RC_LOWER_PF_SET + GLPCI_RC_LOWER_WC_SET;
+ msrnum = GLPCI_RC0;
+ wrmsr(msrnum, msr);
+
+ /* */
+ /* R1 - GLPCI settings for SysMem space.*/
+ /* */
+ /* Get systop from GLIU0 SYSTOP Descriptor*/
+ for(i = 0; gliu0table[i].desc_name != GL_END; i++) {
+ if (gliu0table[i].desc_type == R_SYSMEM) {
+ gl = &gliu0table[i];
+ break;
+ }
+ }
+ if (gl) {
+ unsigned long pah, pal;
+ msrnum = gl->desc_name;
+ msr = rdmsr(msrnum);
+ /* example R_SYSMEM value: 20:00:00:0f:fb:f0:01:00
+ * translates to a base of 0x00100000 and top of 0xffbf0000
+ * base of 1M and top of around 256M
+ */
+ /* we have to create a page-aligned (4KB page) address for base and top */
+ /* So we need a high page aligned addresss (pah) and low page aligned address (pal)
+ * pah is from msr.hi << 12 | msr.low >> 20. pal is msr.lo << 12
+ */
+ printk_debug("GLPCI r1: system msr.lo 0x%08x msr.hi 0x%08x\n", msr.lo, msr.hi);
+ pah = ((msr.hi &0xff) << 12) | ((msr.lo >> 20) & 0xfff);
+ /* we have the page address. Now make it a page-aligned address */
+ pah <<= 12;
+
+ pal = msr.lo << 12;
+ msr.hi = pah;
+ msr.lo = pal;
+ msr.lo |= GLPCI_RC_LOWER_EN_SET | GLPCI_RC_LOWER_PF_SET | GLPCI_RC_LOWER_WC_SET;
+ printk_debug("GLPCI r1: system msr.lo 0x%08x msr.hi 0x%08x\n", msr.lo, msr.hi);
+ msrnum = GLPCI_RC1;
+ wrmsr(msrnum, msr);
+ }
+
+ /* */
+ /* R2 - GLPCI settings for SMM space.*/
+ /* */
+ msr.hi = ((SMM_OFFSET+(SMM_SIZE*1024-1)) >> 12) << GLPCI_RC_UPPER_TOP_SHIFT;
+ msr.lo = (SMM_OFFSET >> 12) << GLPCI_RC_LOWER_BASE_SHIFT;
+ msr.lo |= GLPCI_RC_LOWER_EN_SET | GLPCI_RC_LOWER_PF_SET;
+ msrnum = GLPCI_RC2;
+ wrmsr(msrnum, msr);
+
+ /* this is done elsewhere already, but it does no harm to do it more than once */
+ /* write serialize memory hole to PCI. Need to to unWS when something is shadowed regardless of cachablility.*/
+ msr.lo = 0x021212121 /* cache disabled and write serialized*/;
+ msr.hi = 0x021212121 /* cache disabled and write serialized*/;
+
+ msrnum = CPU_RCONF_A0_BF;
+ wrmsr(msrnum, msr);
+
+ msrnum = CPU_RCONF_C0_DF;
+ wrmsr(msrnum, msr);
+
+ msrnum = CPU_RCONF_E0_FF;
+ wrmsr(msrnum, msr);
+
+ /* Set Non-Cacheable Read Only for NorthBound Transactions to Memory. The Enable bit is handled in the Shadow setup.*/
+ msrnum = GLPCI_A0_BF;
+ msr.hi = 0x35353535;
+ msr.lo = 0x35353535;
+ wrmsr(msrnum, msr);
+
+ msrnum = GLPCI_C0_DF;
+ msr.hi = 0x35353535;
+ msr.lo = 0x35353535;
+ wrmsr(msrnum, msr);
+
+ msrnum = GLPCI_E0_FF;
+ msr.hi = 0x35353535;
+ msr.lo = 0x35353535;
+ wrmsr(msrnum, msr);
+
+ /* Set WSREQ*/
+ msrnum = CPU_DM_CONFIG0;
+ msr = rdmsr(msrnum);
+ msr.hi &= ~ (7 << DM_CONFIG0_UPPER_WSREQ_SHIFT);
+ msr.hi |= 2 << DM_CONFIG0_UPPER_WSREQ_SHIFT ; /* reduce to 1 for safe mode.*/
+ wrmsr(msrnum, msr);
+
+ /* we are ignoring the 5530 case for now, and perhaps forever. */
+
+ /* */
+ /* 5535 NB Init*/
+ /* */
+ msrnum = GLPCI_ARB;
+ msr = rdmsr(msrnum);
+ msr.hi |= GLPCI_ARB_UPPER_PRE0_SET | GLPCI_ARB_UPPER_PRE1_SET;
+ msr.lo |= GLPCI_ARB_LOWER_IIE_SET;
+ wrmsr(msrnum, msr);
+
+
+ msrnum = GLPCI_CTRL;
+ msr = rdmsr(msrnum);
+
+ msr.lo |= GLPCI_CTRL_LOWER_ME_SET | GLPCI_CTRL_LOWER_OWC_SET | GLPCI_CTRL_LOWER_PCD_SET; /* (Out will be disabled in CPUBUG649 for < 2.0 parts .)*/
+ msr.lo |= GLPCI_CTRL_LOWER_LDE_SET;
+
+ msr.lo &= ~ (0x03 << GLPCI_CTRL_LOWER_IRFC_SHIFT);
+ msr.lo |= 0x02 << GLPCI_CTRL_LOWER_IRFC_SHIFT;
+
+ msr.lo &= ~ (0x07 << GLPCI_CTRL_LOWER_IRFT_SHIFT);
+ msr.lo |= 0x06 << GLPCI_CTRL_LOWER_IRFT_SHIFT;
+
+ msr.hi &= ~ (0x0f << GLPCI_CTRL_UPPER_FTH_SHIFT);
+ msr.hi |= 0x0F << GLPCI_CTRL_UPPER_FTH_SHIFT;
+
+ msr.hi &= ~ (0x0f << GLPCI_CTRL_UPPER_RTH_SHIFT);
+ msr.hi |= 0x0F << GLPCI_CTRL_UPPER_RTH_SHIFT;
+
+ msr.hi &= ~ (0x0f << GLPCI_CTRL_UPPER_SBRTH_SHIFT);
+ msr.hi |= 0x0F << GLPCI_CTRL_UPPER_SBRTH_SHIFT;
+
+ msr.hi &= ~ (0x03 << GLPCI_CTRL_UPPER_WTO_SHIFT);
+ msr.hi |= 0x06 << GLPCI_CTRL_UPPER_WTO_SHIFT;
+
+ msr.hi &= ~ (0x03 << GLPCI_CTRL_UPPER_ILTO_SHIFT);
+ msr.hi |= 0x00 << GLPCI_CTRL_UPPER_ILTO_SHIFT;
+ wrmsr(msrnum, msr);
+
+
+ /* Set GLPCI Latency Timer.*/
+ msrnum = GLPCI_CTRL;
+ msr = rdmsr(msrnum);
+ msr.hi |= 0x1F << GLPCI_CTRL_UPPER_LAT_SHIFT; /* Change once 1.x is gone.*/
+ wrmsr(msrnum, msr);
+
+ /* GLPCI_SPARE*/
+ msrnum = GLPCI_SPARE;
+ msr = rdmsr(msrnum);
+ msr.lo &= ~ 0x7;
+ msr.lo |= GLPCI_SPARE_LOWER_AILTO_SET | GLPCI_SPARE_LOWER_PPD_SET | GLPCI_SPARE_LOWER_PPC_SET | GLPCI_SPARE_LOWER_MPC_SET | GLPCI_SPARE_LOWER_NSE_SET | GLPCI_SPARE_LOWER_SUPO_SET;
+ wrmsr(msrnum, msr);
+
+}
+
+
+
+ /* ***************************************************************************/
+ /* **/
+ /* * ClockGatingInit*/
+ /* **/
+ /* * Enable Clock Gating.*/
+ /* **/
+ /* * Entry:*/
+ /* * Exit:*/
+ /* * Modified:*/
+ /* **/
+ /* ***************************************************************************/
+static void
+ClockGatingInit (void){
+ msr_t msr;
+ struct msrinit *gating = ClockGatingDefault;
+ int i;
+
+#if 0
+ mov cx, TOKEN_CLK_GATE
+ NOSTACK bx, GetNVRAMValueBX
+ cmp al, TVALUE_CG_OFF
+ je gatingdone
+
+ cmp al, TVALUE_CG_DEFAULT
+ jb allon
+ ja performance
+ lea si, ClockGatingDefault
+ jmp nextdevice
+
+allon:
+ lea si, ClockGatingAllOn
+ jmp nextdevice
+
+performance:
+ lea si, ClockGatingPerformance
+#endif
+
+ for(i = 0; gating->msrnum != 0xffffffff; i++) {
+ msr = rdmsr(gating->msrnum);
+ printk_debug("%s: MSR 0x%08x is 0x%08x:0x%08x\n", __FUNCTION__, gating->msrnum, msr.hi, msr.lo);
+ msr.hi |= gating->msr.hi;
+ msr.lo |= gating->msr.lo;
+ printk_debug("%s: MSR 0x%08x will be set to 0x%08x:0x%08x\n", __FUNCTION__,
+ gating->msrnum, msr.hi, msr.lo);
+ wrmsr(gating->msrnum, msr); // MSR - See the table above
+ gating +=1;
+ }
+
+}
+
+static void
+GeodeLinkPriority(void){
+ msr_t msr;
+ struct msrinit *prio = GeodeLinkPriorityTable;
+ int i;
+
+ for(i = 0; prio->msrnum != 0xffffffff; i++) {
+ msr = rdmsr(prio->msrnum);
+ printk_debug("%s: MSR 0x%08x is 0x%08x:0x%08x\n", __FUNCTION__, prio->msrnum, msr.hi, msr.lo);
+ msr.hi |= prio->msr.hi;
+ msr.lo &= ~0xfff;
+ msr.lo |= prio->msr.lo;
+ printk_debug("%s: MSR 0x%08x will be set to 0x%08x:0x%08x\n", __FUNCTION__,
+ prio->msrnum, msr.hi, msr.lo);
+ wrmsr(prio->msrnum, msr); // MSR - See the table above
+ prio +=1;
+ }
+}
+
+
+
+/*
+ * Get the GLIU0 shadow register settings
+ * If the setShadow function is used then all shadow descriptors
+ * will stay sync'ed.
+ */
+static uint64_t getShadow(void)
+{
+ msr_t msr;
+ msr = rdmsr(MSR_GLIU0_SHADOW);
+ return ( ( (uint64_t) msr.hi ) << 32 ) | msr.lo;
+}
+
+
+/*
+ * Set the cache RConf registers for the memory hole.
+ * Keeps all cache shadow descriptors sync'ed.
+ * This is part of the PCI lockup solution
+ * Entry: EDX:EAX is the shadow settings
+ */
+static void setShadowRCONF(uint32_t shadowHi, uint32_t shadowLo)
+{
+ // ok this is whacky bit translation time.
+ int bit;
+ uint8_t shadowByte;
+ msr_t msr;
+ shadowByte = (uint8_t) (shadowLo >> 16);
+
+ // load up D000 settings in edx.
+ for (bit = 8; (bit > 4); bit--) {
+ msr.hi <<= 8;
+ msr.hi |= 1; // cache disable PCI/Shadow memory
+ if (shadowByte && (1 << bit))
+ msr.hi |= 0x20; // write serialize PCI memory
+ }
+
+ // load up C000 settings in eax.
+ for ( ; bit; bit--) {
+ msr.lo <<= 8;
+ msr.lo |= 1; // cache disable PCI/Shadow memory
+ if (shadowByte && (1 << bit))
+ msr.lo |= 0x20; // write serialize PCI memory
+ }
+
+ wrmsr(CPU_RCONF_C0_DF, msr);
+
+ shadowByte = (uint8_t) (shadowLo >> 24);
+
+ // load up F000 settings in edx.
+ for (bit = 8; (bit > 4); bit--) {
+ msr.hi <<= 8;
+ msr.hi |= 1; // cache disable PCI/Shadow memory
+ if (shadowByte && (1 << bit))
+ msr.hi |= 0x20; // write serialize PCI memory
+ }
+
+ // load up E000 settings in eax.
+ for ( ; bit; bit--) {
+ msr.lo <<= 8;
+ msr.lo |= 1; // cache disable PCI/Shadow memory
+ if (shadowByte && (1 << bit))
+ msr.lo |= 0x20; // write serialize PCI memory
+ }
+
+ wrmsr(CPU_RCONF_E0_FF, msr);
+}
+
+
+/*
+ * Set the GLPCI registers for the memory hole.
+ * Keeps all cache shadow descriptors sync'ed.
+ * Entry: EDX:EAX is the shadow settings
+ */
+static void setShadowGLPCI(uint32_t shadowHi, uint32_t shadowLo)
+{
+ msr_t msr;
+
+// Set the Enable Register.
+
+ msr = rdmsr(GLPCI_REN);
+ msr.lo &= 0xFFFF00FF;
+ msr.lo |= ( (shadowLo & 0xFFFF0000) >> 8);
+ wrmsr(GLPCI_REN, msr);
+}
+
+
+/*
+ * Set the GLIU SC register settings. Scans descriptor tables for SC_SHADOW.
+ * Keeps all shadow descriptors sync'ed.
+ * Entry: EDX:EAX is the shadow settings
+ */
+static void setShadow(uint64_t shadowSettings)
+{
+ int i;
+ msr_t msr;
+ struct gliutable* pTable;
+ uint32_t shadowLo, shadowHi;
+
+ shadowLo = (uint32_t) shadowSettings;
+ shadowHi = (uint32_t) (shadowSettings >> 32);
+
+ setShadowRCONF(shadowHi, shadowLo);
+ setShadowGLPCI(shadowHi, shadowLo);
+
+ for(i = 0; gliutables[i]; i++) {
+ for (pTable = gliutables[i]; pTable->desc_type != GL_END; pTable++) {
+ if (pTable->desc_type == SC_SHADOW) {
+
+ msr = rdmsr(pTable->desc_name);
+ msr.lo = (uint32_t) shadowSettings;
+ msr.hi &= 0xFFFF0000; // maintain PDID in upper EDX
+ msr.hi |= ((uint32_t) (shadowSettings >> 32)) & 0x0000FFFF;
+ wrmsr(pTable->desc_name, msr); // MSR - See the table above
+
+ }
+ }
+ }
+}
+
+/**************************************************************************
+ *
+ * shadowRom
+ *
+ * Set up a stack for ease of further testing
+ *
+ * Entry:
+ * Exit:
+ * Destroys:
+ *
+ **************************************************************************/
+static void
+shadowRom(void)
+{
+ uint64_t shadowSettings = getShadow();
+ shadowSettings &= (uint64_t) 0xFFFF00000000FFFFULL; // Disable read & writes
+ shadowSettings |= (uint64_t) 0x00000000F0000000ULL; // Enable reads for F0000-FFFFF
+ setShadow(shadowSettings);
+}
+
+
+
+/***************************************************************************
+ *
+ * RCONFInit
+ * Set up RCONF_DEFAULT and any other RCONF registers needed
+ *
+ * DEVRC_RCONF_DEFAULT:
+ * ROMRC(63:56) = 04h ; write protect ROMBASE
+ * ROMBASE(36:55) = 0FFFC0h ; Top of PCI/bottom of rom chipselect area
+ * DEVRC(35:28) = 39h ; cache disabled in PCI memory + WS bit on + Write Combine + write burst.
+ * SYSTOP(27:8) = top of system memory
+ * SYSRC(7:0) = 00h ; writeback, can set to 08h to make writethrough
+ *
+ ***************************************************************************/
+#define SYSMEM_RCONF_WRITETHROUGH 8
+#define DEVRC_RCONF_DEFAULT 0x21
+#define ROMBASE_RCONF_DEFAULT 0xFFFC0000
+#define ROMRC_RCONF_DEFAULT 0x25
+
+static void
+RCONFInit(void)
+{
+ struct gliutable *gl = 0;
+ int i;
+ msr_t msr;
+ uint8_t SysMemCacheProp;
+ uint8_t RegionProp;
+
+ /* Locate SYSMEM entry in GLIU0table */
+ for(i = 0; gliu0table[i].desc_name != GL_END; i++) {
+ if (gliu0table[i].desc_type == R_SYSMEM) {
+ gl = &gliu0table[i];
+ break;
+ }
+ }
+ if (gl == 0) {
+ post_code(0xCE); /* POST_RCONFInitError */
+ while (1);
+ }
+
+// sysdescfound:
+ /* found the descriptor... get its contents */
+ msr = rdmsr(gl->desc_name);
+
+ /* 20 bit address - The bottom 12 bits go into bits 20-31 in eax, the
+ * top 8 bits go into 0-7 of edx.
+ */
+ msr.lo = (msr.lo & 0xFFFFFF00) | (msr.hi & 0xFF);
+ msr.lo = ((msr.lo << 12) | (msr.lo >> 20)) & 0x000FFFFF;
+ msr.lo <<= RCONF_DEFAULT_LOWER_SYSTOP_SHIFT; // 8
+
+ // Set Default SYSMEM region properties
+ msr.lo &= ~SYSMEM_RCONF_WRITETHROUGH; // 8 (or ~8)
+
+ // Set PCI space cache properties
+ msr.hi = (DEVRC_RCONF_DEFAULT >> 4); // only need the bottom bits and lets clean the rest of edx
+ msr.lo |= (DEVRC_RCONF_DEFAULT << 28);
+
+ // Set the ROMBASE. This is usually FFFC0000h
+ msr.hi |= (ROMBASE_RCONF_DEFAULT >> 12) << RCONF_DEFAULT_UPPER_ROMBASE_SHIFT;
+
+ // Set ROMBASE cache properties.
+ msr.hi |= ((ROMRC_RCONF_DEFAULT >> 8) | (ROMRC_RCONF_DEFAULT << 24));
+
+ // now program RCONF_DEFAULT
+ wrmsr(CPU_RCONF_DEFAULT, msr);
+
+ // RCONF_BYPASS: Cache tablewalk properties and SMM/DMM header access properties.
+ // Set to match system memory cache properties.
+ msr = rdmsr(CPU_RCONF_DEFAULT);
+ SysMemCacheProp = (uint8_t) (msr.lo & 0xFF);
+ msr = rdmsr(CPU_RCONF_BYPASS);
+ msr.lo = (msr.lo & 0xFFFF0000) | (SysMemCacheProp << 8) | SysMemCacheProp;
+ wrmsr(CPU_RCONF_BYPASS, msr);
+}
+
+
+/* ***************************************************************************/
+/* **/
+/* * northBridgeInit*/
+/* **/
+/* * Core Logic initialization: Host bridge*/
+/* **/
+/* * Entry:*/
+/* * Exit:*/
+/* * Modified:*/
+/* **/
+/* ***************************************************************************/
+
+void
+northbridgeinit(void)
+{
+ msr_t msr;
+ int i;
+ printk_debug("Enter %s\n", __FUNCTION__);
+
+ for(i = 0; gliutables[i]; i++)
+ GLIUInit(gliutables[i]);
+
+ GeodeLinkPriority();
+
+ shadowRom();
+
+ // GeodeROM ensures that the BIOS waits the required 1 second before
+ // allowing anything to access PCI
+ // PCIDelay();
+
+ RCONFInit();
+
+ // The cacheInit function in GeodeROM tests cache and, among other things,
+ // makes sure all INVD instructions are treated as WBINVD. We do this
+ // because we've found some programs which require this behavior.
+ // That subset of cacheInit() is implemented here:
+ msr = rdmsr(CPU_DM_CONFIG0);
+ msr.lo |= DM_CONFIG0_LOWER_WBINVD_SET;
+ wrmsr(CPU_DM_CONFIG0, msr);
+
+ /* Now that the descriptor to memory is set up.*/
+ /* The memory controller needs one read to synch its lines before it can be used.*/
+ i = *(int *) 0;
+
+ GLPCIInit();
+ ClockGatingInit();
+ __asm__("FINIT\n");
+ /* CPUBugsFix -- called elsewhere */
+ printk_debug("Exit %s\n", __FUNCTION__);
+}
+
diff --git a/src/northbridge/amd/lx/pll_reset.c b/src/northbridge/amd/lx/pll_reset.c
new file mode 100644
index 0000000000..be92e9b90d
--- /dev/null
+++ b/src/northbridge/amd/lx/pll_reset.c
@@ -0,0 +1,85 @@
+#define POST_CODE(x) outb(0x80, x)
+
+static void pll_reset(void)
+{
+ msr_t msrGlcpSysRstpll;
+
+ msrGlcpSysRstpll = rdmsr(GLCP_SYS_RSTPLL);
+
+ print_debug("MSR GLCP_SYS_RSTPLL (");
+ print_debug_hex32(GLCP_SYS_RSTPLL);
+ print_debug(") value is: ");
+ print_debug_hex32(msrGlcpSysRstpll.hi);
+ print_debug(":");
+ print_debug_hex32(msrGlcpSysRstpll.lo);
+ print_debug("\n");
+
+ msrGlcpSysRstpll.lo &= 0x80000000;
+
+ // If the "we've already been here" flag is set, don't reconfigure the pll
+ if ( !(msrGlcpSysRstpll.lo) )
+ { // we haven't configured the PLL; do it now
+ POST_CODE(0x77);
+
+ /*
+ * 64 - 32 | 31-0
+ *
+ * (03FB)
+ * 0000 0011 1111 1011 | 1000 0000 1101 1110 0000 0000 1000 0001
+ *
+ * (039C)
+ * 0000 0011 1001 1100 | 1000 0000 1101 1110 0000 0000 1000 0001
+ *
+ * (029C)
+ * 0000 0010 1001 1100 | 1000 0000 1101 1110 0000 0000 1000 0001
+ *
+ * (02CB)
+ * 0000 0010 1100 1011 | 1000 0000 1101 1110 0000 0000 1000 0001
+ *
+ * 00101 1 00101 1 | 100000 0 0 11011110 0000 0000 1000 0001
+ * GLIUMULT GLIUDIV COREMULT COREDIV | SWFLAGS (RO) (RO) HOLD_COUNT
+ */
+
+ /* ### 02CB ###
+ * GLIUMULT = 6
+ * GLIUDIV = 2
+ * COREMULT = 6
+ * COREDIV = 2
+ *
+ * ### 03FB ###
+ * GLIUMULT = 8
+ * GLIUDIV = 2
+ * COREMULT = 30
+ * COREDIV = 2
+ *
+ * ### 039C ### bad... why?
+ * GLIUMULT = 8
+ * GLIUDIV = 0
+ * COREMULT = 15
+ * COREDIV = 0
+ *
+ * ### 029C ### good...
+ * GLIUMULT = 6
+ * GLIUDIV = 0
+ * COREMULT = 15
+ * COREDIV = 0
+ *
+ * CLOCK = 33 MHz
+ *
+ */
+
+ /* CPU and GLIU mult/div (GLMC_CLK = GLIU_CLK / 2) */
+ msrGlcpSysRstpll.hi = 0x0000029C;
+
+ /* Hold Count - how long we will sit in reset */
+ msrGlcpSysRstpll.lo = 0x00DE0000;
+
+ /* Use SWFLAGS to remember: "we've already been here" */
+ msrGlcpSysRstpll.lo |= 0x80000000;
+
+ /* "reset the chip" value */
+ msrGlcpSysRstpll.lo |= 0x00000001;
+
+ wrmsr(GLCP_SYS_RSTPLL, msrGlcpSysRstpll);
+ }
+}
diff --git a/src/northbridge/amd/lx/raminit.c b/src/northbridge/amd/lx/raminit.c
new file mode 100644
index 0000000000..7fd39ae22e
--- /dev/null
+++ b/src/northbridge/amd/lx/raminit.c
@@ -0,0 +1,143 @@
+#include <cpu/amd/lxdef.h>
+
+#if 0
+static void sdram_set_registers(const struct mem_controller *ctrl)
+{
+}
+
+#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)
+{
+ int i;
+ msr_t msr;
+
+ /* DRAM initialization sequence according to the documentation:
+ * 1) Initialize the following GLMC registers/bits based on Serial Presence Detect (SPD) values:
+ * — MSR 20000018h except REF_INT bits [23:8]
+ * — MSR 20000019h
+ */
+
+ // This is done by sdram_set_spd_registers()
+ /*WR_MSR MC_CF07_DATA, DIMMCONFIG, 0x05000040
+
+ ;WR_MSR MC_CF07_DATA, DIMMCONFIG, 0x00000040 ; MSR 20000018h except REF_INT bits [23:8]. REF_STAG value from DOCS*/
+
+ /*
+ * 0x18000100 : 0x696332A3
+ *
+ * 63 - 32 | 31 15 0
+ * xxxxxxx | 0110 1001 0110 0011 0011 0010 1010 0011
+ *
+ * 30:28 CAS latency
+ *
+ * 010 - 2.0
+ * 110 - 2.5
+ *
+ */
+
+ msr.hi = 0x18000100;
+ msr.lo = 0x696332A3;
+ wrmsr(MC_CF8F_DATA, msr);
+
+ /* 2) Initialize the following GLMC registers:
+ * — MSR 2000001Ah[15:8] = C8h
+ * — MSR 20002004h[2] = 0, [0] = 1
+ */
+ msr.hi = 0x00000000;
+ msr.lo = 0x130AD101;
+ wrmsr(MC_CF1017_DATA, msr);
+
+ msr.hi = 0x00000000;
+ msr.lo = 0x00000001;
+ wrmsr(MC_GLD_MSR_PM, msr);
+
+ /* 3) Release MASK_CKE[1:0] (MSR 2000001Dh[9:8] = 11) */
+
+ msr.hi = 0x00000000;
+ msr.lo = 0x00001000;
+ wrmsr(MC_CFCLK_DBUG, msr);
+
+ //print_debug("sdram_enable step 3\r\n");
+
+ /* 4. set and clear REF_TST 16 times, more shouldn't hurt
+ * why this is before EMRS and MRS ? */
+
+ for (i = 0; i < 19; i++) {
+ msr = rdmsr(MC_CF07_DATA);
+ msr.lo |= (0x01 << 3);
+ wrmsr(MC_CF07_DATA, msr);
+ msr.lo &= ~(0x01 << 3);
+ wrmsr(MC_CF07_DATA, msr);
+ }
+
+
+ /* 5) Initialize REF_INT (MSR 20000018h[23:8]) to set refresh interval. */
+ msr.lo |= 0x2B00;
+ wrmsr(MC_CF07_DATA, msr);
+
+
+
+ /* set refresh staggering to 4 SDRAM clocks */
+ msr = rdmsr(0x20000018);
+ msr.lo &= ~(0x03 << 6);
+ msr.lo |= (0x00 << 6);
+ wrmsr(0x20000018, msr);
+ //print_debug("sdram_enable step 5\r\n");
+
+
+ /* 6) Perform load-mode with MSR_BA = 01 (MSR 200000018h[29:28] = 01)
+ * to initialize DIMM Extended Mode register.
+ * Load-mode is performed by setting/clearing PROG_DRAM (MSR 200000018h[0]).
+ */
+ msr.lo |= ((0x01 << 28) | 0x01);
+ wrmsr(MC_CF07_DATA, msr);
+
+ msr.lo &= ~((0x01 << 28) | 0x01);
+ wrmsr(MC_CF07_DATA, msr);
+
+
+ /* 7. Reset DLL, Bit 27 is undocumented in GX datasheet,
+ * it is documented in LX datasheet */
+ /* load Mode Register by set and clear PROG_DRAM */
+ msr = rdmsr(MC_CF07_DATA);
+ msr.lo |= ((0x01 << 27) | 0x01);
+ wrmsr(MC_CF07_DATA, msr);
+ msr.lo &= ~((0x01 << 27) | 0x01);
+ wrmsr(MC_CF07_DATA, msr);
+ //print_debug("sdram_enable step 7\r\n");
+
+
+ /* 8. load Mode Register by set and clear PROG_DRAM */
+ msr = rdmsr(MC_CF07_DATA);
+ msr.lo |= 0x01;
+ wrmsr(MC_CF07_DATA, msr);
+ msr.lo &= ~0x01;
+ wrmsr(MC_CF07_DATA, msr);
+ //print_debug("sdram_enable step 8\r\n");
+
+ /* wait 200 SDCLKs */
+ for (i = 0; i < 200; i++)
+ outb(0xaa, 0x80);
+
+ /* load RDSYNC */
+ /*msr = rdmsr(0x2000001f);
+ msr.hi = 0x000ff310;
+ msr.lo = 0x00000000;
+ wrmsr(0x2000001f, msr);*/
+
+ /* set delay control */
+ msr = rdmsr(0x4c00000f);
+ msr.hi = 0x830d415a;
+ msr.lo = 0x8ea0ad6a;
+ wrmsr(0x4c00000f, msr);
+
+
+ print_debug("DRAM controller init done.\r\n");
+
+ /* DRAM working now?? */
+
+}
diff --git a/src/northbridge/amd/lx/raminit.h b/src/northbridge/amd/lx/raminit.h
new file mode 100644
index 0000000000..f13f53a09f
--- /dev/null
+++ b/src/northbridge/amd/lx/raminit.h
@@ -0,0 +1,10 @@
+#ifndef RAMINIT_H
+#define RAMINIT_H
+
+#define DIMM_SOCKETS 2
+
+struct mem_controller {
+ uint16_t channel0[DIMM_SOCKETS];
+};
+
+#endif /* RAMINIT_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 12:22:49 +0000