summaryrefslogtreecommitdiff
path: root/src/northbridge
diff options
context:
space:
mode:
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/amd/gx2/northbridge.c141
-rw-r--r--src/northbridge/amd/gx2/northbridgeinit.c4
2 files changed, 0 insertions, 145 deletions
diff --git a/src/northbridge/amd/gx2/northbridge.c b/src/northbridge/amd/gx2/northbridge.c
index 0f8013c057..6f3e17abc7 100644
--- a/src/northbridge/amd/gx2/northbridge.c
+++ b/src/northbridge/amd/gx2/northbridge.c
@@ -66,23 +66,9 @@ int sizeram(void)
#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
{
@@ -91,20 +77,6 @@ struct msr_defaults
} 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),
@@ -196,29 +168,6 @@ static void setup_gx2(void)
* 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(BIOS_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(BIOS_DEBUG, "MSR 0x%x is now 0x%x:0x%x\n", 0x10000028, msr.hi,msr.lo);
- msr = rdmsr(0x40000029);
- printk(BIOS_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;
@@ -234,31 +183,6 @@ static void setup_gx2(void)
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(BIOS_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(BIOS_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(BIOS_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)
@@ -268,33 +192,17 @@ static void enable_shadow(device_t dev)
static void northbridge_init(device_t dev)
{
- unsigned long m;
-
struct northbridge_amd_gx2_config *nb = (struct northbridge_amd_gx2_config *)dev->chip_info;
printk(BIOS_DEBUG, "northbridge: %s()\n", __func__);
enable_shadow(dev);
irq_init_steering(dev, nb->irqmap);
-
- /* HACK HACK HACK HACK */
- /* 0x1000 is where GPIO is being assigned */
- m = inl(0x1038);
- m &= ~GPIOL_12_SET;
- m |= GPIOL_12_CLEAR;
- outl(m, 0x1038);
}
/* due to vsa interactions, we need not not touch the nb settings ... */
/* this is a test -- we are not sure it will work -- but it ought to */
static void set_resources(struct device *dev)
{
-#if 0
- struct resource *res;
-
- for(res = &dev->resource_list; res; res = res->next) {
- pci_set_resource(dev, resource);
- }
-#endif
struct bus *bus;
for(bus = dev->link_list; bus; bus = bus->next) {
@@ -324,9 +232,6 @@ static void set_resources(struct device *dev)
static struct device_operations northbridge_operations = {
.read_resources = pci_dev_read_resources,
-#if 0
- .set_resources = pci_dev_set_resources,
-#endif
.set_resources = set_resources,
.enable_resources = pci_dev_enable_resources,
.init = northbridge_init,
@@ -345,52 +250,6 @@ static const struct pci_driver northbridge_driver __pci_driver = {
static void pci_domain_set_resources(device_t dev)
{
-#if 0
- device_t mc_dev;
- u32 pci_tolm;
-
- pci_tolm = find_pci_tolm(dev->link_list);
- mc_dev = dev->link_list->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(BIOS_DEBUG, "BC_DRAM_TOP = 0x%08x\n", *bcdramtop);
- printk(BIOS_DEBUG, "MC_GBASE_ADD = 0x%08x\n", *mcgbaseadd);
-
- printk(BIOS_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_list);
}
diff --git a/src/northbridge/amd/gx2/northbridgeinit.c b/src/northbridge/amd/gx2/northbridgeinit.c
index 446c1e79cf..b424d19c34 100644
--- a/src/northbridge/amd/gx2/northbridgeinit.c
+++ b/src/northbridge/amd/gx2/northbridgeinit.c
@@ -708,10 +708,6 @@ void northbridgeinit(void)
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,
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 07:50:55 +0000