summaryrefslogtreecommitdiff
path: root/src/northbridge
diff options
context:
space:
mode:
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/transmeta/tm5800/Config.lb5
-rw-r--r--src/northbridge/transmeta/tm5800/chip.h5
-rw-r--r--src/northbridge/transmeta/tm5800/cpu_rev.c15
-rw-r--r--src/northbridge/transmeta/tm5800/debug.c161
-rw-r--r--src/northbridge/transmeta/tm5800/northbridge.c131
-rw-r--r--src/northbridge/transmeta/tm5800/northbridge.h5
6 files changed, 322 insertions, 0 deletions
diff --git a/src/northbridge/transmeta/tm5800/Config.lb b/src/northbridge/transmeta/tm5800/Config.lb
new file mode 100644
index 0000000000..c4ed559da3
--- /dev/null
+++ b/src/northbridge/transmeta/tm5800/Config.lb
@@ -0,0 +1,5 @@
+
+config chip.h
+object northbridge.o
+driver misc_control.o
+
diff --git a/src/northbridge/transmeta/tm5800/chip.h b/src/northbridge/transmeta/tm5800/chip.h
new file mode 100644
index 0000000000..1c121ac077
--- /dev/null
+++ b/src/northbridge/transmeta/tm5800/chip.h
@@ -0,0 +1,5 @@
+struct northbridge_transmeta_tm5800_config
+{
+};
+
+extern struct chip_control northbridge_transmeta_tm5800_control;
diff --git a/src/northbridge/transmeta/tm5800/cpu_rev.c b/src/northbridge/transmeta/tm5800/cpu_rev.c
new file mode 100644
index 0000000000..b84b0b159c
--- /dev/null
+++ b/src/northbridge/transmeta/tm5800/cpu_rev.c
@@ -0,0 +1,15 @@
+/* this is a shrunken cpuid. */
+
+static unsigned int cpuid(unsigned int op)
+{
+ unsigned int ret;
+ unsigned dummy2,dummy3,dummy4;
+
+ asm volatile (
+ "cpuid"
+ : "=a" (ret), "=b" (dummy2), "=c" (dummy3), "=d" (dummy4)
+ : "a" (op)
+ );
+
+ return ret;
+}
diff --git a/src/northbridge/transmeta/tm5800/debug.c b/src/northbridge/transmeta/tm5800/debug.c
new file mode 100644
index 0000000000..40296ee3c8
--- /dev/null
+++ b/src/northbridge/transmeta/tm5800/debug.c
@@ -0,0 +1,161 @@
+/*
+ * generic K8 debug code, used by mainboard specific auto.c
+ *
+ */
+
+static void print_debug_pci_dev(unsigned dev)
+{
+ print_debug("PCI: ");
+ print_debug_hex8((dev >> 16) & 0xff);
+ print_debug_char(':');
+ print_debug_hex8((dev >> 11) & 0x1f);
+ print_debug_char('.');
+ print_debug_hex8((dev >> 8) & 7);
+}
+
+static void print_pci_devices(void)
+{
+ device_t dev;
+ for(dev = PCI_DEV(0, 0, 0);
+ dev <= PCI_DEV(0, 0x1f, 0x7);
+ dev += PCI_DEV(0,0,1)) {
+ uint32_t id;
+ id = pci_read_config32(dev, PCI_VENDOR_ID);
+ if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
+ (((id >> 16) & 0xffff) == 0xffff) ||
+ (((id >> 16) & 0xffff) == 0x0000)) {
+ continue;
+ }
+ print_debug_pci_dev(dev);
+ print_debug("\r\n");
+ }
+}
+
+static void dump_pci_device(unsigned dev)
+{
+ int i;
+ print_debug_pci_dev(dev);
+ print_debug("\r\n");
+
+ for(i = 0; i <= 255; i++) {
+ unsigned char val;
+ if ((i & 0x0f) == 0) {
+ print_debug_hex8(i);
+ print_debug_char(':');
+ }
+ val = pci_read_config8(dev, i);
+ print_debug_char(' ');
+ print_debug_hex8(val);
+ if ((i & 0x0f) == 0x0f) {
+ print_debug("\r\n");
+ }
+ }
+}
+
+static void dump_pci_devices(void)
+{
+ device_t dev;
+ for(dev = PCI_DEV(0, 0, 0);
+ dev <= PCI_DEV(0, 0x1f, 0x7);
+ dev += PCI_DEV(0,0,1)) {
+ uint32_t id;
+ id = pci_read_config32(dev, PCI_VENDOR_ID);
+ if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
+ (((id >> 16) & 0xffff) == 0xffff) ||
+ (((id >> 16) & 0xffff) == 0x0000)) {
+ continue;
+ }
+ dump_pci_device(dev);
+ }
+}
+
+static void dump_spd_registers(const struct mem_controller *ctrl)
+{
+ int i;
+ print_debug("\r\n");
+ for(i = 0; i < 4; i++) {
+ unsigned device;
+ device = ctrl->channel0[i];
+ if (device) {
+ int j;
+ print_debug("dimm: ");
+ print_debug_hex8(i);
+ print_debug(".0: ");
+ print_debug_hex8(device);
+ for(j = 0; j < 256; j++) {
+ int status;
+ unsigned char byte;
+ if ((j & 0xf) == 0) {
+ print_debug("\r\n");
+ print_debug_hex8(j);
+ print_debug(": ");
+ }
+ status = smbus_read_byte(device, j);
+ if (status < 0) {
+ print_debug("bad device\r\n");
+ break;
+ }
+ byte = status & 0xff;
+ print_debug_hex8(byte);
+ print_debug_char(' ');
+ }
+ print_debug("\r\n");
+ }
+ device = ctrl->channel1[i];
+ if (device) {
+ int j;
+ print_debug("dimm: ");
+ print_debug_hex8(i);
+ print_debug(".1: ");
+ print_debug_hex8(device);
+ for(j = 0; j < 256; j++) {
+ int status;
+ unsigned char byte;
+ if ((j & 0xf) == 0) {
+ print_debug("\r\n");
+ print_debug_hex8(j);
+ print_debug(": ");
+ }
+ status = smbus_read_byte(device, j);
+ if (status < 0) {
+ print_debug("bad device\r\n");
+ break;
+ }
+ byte = status & 0xff;
+ print_debug_hex8(byte);
+ print_debug_char(' ');
+ }
+ print_debug("\r\n");
+ }
+ }
+}
+static void dump_smbus_registers(void)
+{
+ int i;
+ print_debug("\r\n");
+ for(i = 1; i < 0x80; i++) {
+ unsigned device;
+ device = i;
+ int j;
+ print_debug("smbus: ");
+ print_debug_hex8(device);
+ for(j = 0; j < 256; j++) {
+ int status;
+ unsigned char byte;
+ if ((j & 0xf) == 0) {
+ print_debug("\r\n");
+ print_debug_hex8(j);
+ print_debug(": ");
+ }
+ status = smbus_read_byte(device, j);
+ if (status < 0) {
+ print_debug("bad device\r\n");
+ break;
+ }
+ byte = status & 0xff;
+ print_debug_hex8(byte);
+ print_debug_char(' ');
+ }
+ print_debug("\r\n");
+ }
+}
diff --git a/src/northbridge/transmeta/tm5800/northbridge.c b/src/northbridge/transmeta/tm5800/northbridge.c
new file mode 100644
index 0000000000..ccce795da4
--- /dev/null
+++ b/src/northbridge/transmeta/tm5800/northbridge.c
@@ -0,0 +1,131 @@
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <mem.h>
+#include <part/sizeram.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/hypertransport.h>
+#include <device/chip.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bitops.h>
+#include "chip.h"
+#include "northbridge.h"
+
+struct mem_range *sizeram(void)
+{
+ unsigned long mmio_basek;
+ static struct mem_range mem[10];
+ device_t dev;
+ int i, idx;
+
+#warning "FIXME handle interleaved nodes"
+ dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
+ if (!dev) {
+ printk_err("Cannot find PCI: 0:18.1\n");
+ return 0;
+ }
+ mmio_basek = (dev_root.resource[1].base >> 10);
+ /* Round mmio_basek to something the processor can support */
+ mmio_basek &= ~((1 << 6) -1);
+
+#if 1
+#warning "FIXME improve mtrr.c so we don't use up all of the mtrrs with a 64M MMIO hole"
+ /* Round the mmio hold to 256M */
+ mmio_basek &= ~((256*1024) - 1);
+#endif
+
+#if 0
+ printk_debug("mmio_base: %dKB\n", mmio_basek);
+#endif
+
+ for (idx = i = 0; i < 8; i++) {
+ uint32_t base, limit;
+ unsigned basek, limitk, sizek;
+ base = pci_read_config32(dev, 0x40 + (i<<3));
+ limit = pci_read_config32(dev, 0x44 + (i<<3));
+ if ((base & ((1<<1)|(1<<0))) != ((1<<1)|(1<<0))) {
+ continue;
+ }
+ basek = (base & 0xffff0000) >> 2;
+ limitk = ((limit + 0x00010000) & 0xffff0000) >> 2;
+ sizek = limitk - basek;
+ if ((idx > 0) &&
+ ((mem[idx - 1].basek + mem[idx - 1].sizek) == basek)) {
+ mem[idx -1].sizek += sizek;
+ } else {
+ mem[idx].basek = basek;
+ mem[idx].sizek = sizek;
+ idx++;
+ }
+
+ /* see if we need a hole from 0xa0000 to 0xbffff */
+ if ((mem[idx-1].basek < ((8*64)+(8*16))) /* 640 */ &&
+ (mem[idx-1].sizek > ((8*64)+(16*16))) /* 768 */ ) {
+#warning "FIXME: this left 0xA0000 to 0xBFFFF undefined"
+ mem[idx].basek = (8*64)+(16*16);
+ mem[idx].sizek = mem[idx-1].sizek - ((8*64)+(16*16));
+ mem[idx-1].sizek = ((8*64)+(8*16)) - mem[idx-1].basek;
+ idx++;
+ }
+
+ /* See if I need to split the region to accomodate pci memory space */
+ if ((mem[idx - 1].basek <= mmio_basek) &&
+ ((mem[idx - 1].basek + mem[idx - 1].sizek) > mmio_basek)) {
+ if (mem[idx - 1].basek < mmio_basek) {
+ unsigned pre_sizek;
+ pre_sizek = mmio_basek - mem[idx - 1].basek;
+ mem[idx].basek = mmio_basek;
+ mem[idx].sizek = mem[idx - 1].sizek - pre_sizek;
+ mem[idx - 1].sizek = pre_sizek;
+ idx++;
+ }
+ if ((mem[idx - 1].basek + mem[idx - 1].sizek) <= 4*1024*1024) {
+ idx -= 1;
+ } else {
+ mem[idx - 1].basek = 4*1024*1024;
+ mem[idx - 1].sizek -= (4*1024*1024 - mmio_basek);
+ }
+ }
+ }
+#if 1
+ for (i = 0; i < idx; i++) {
+ printk_debug("mem[%d].basek = %08x mem[%d].sizek = %08x\n",
+ i, mem[i].basek, i, mem[i].sizek);
+ }
+#endif
+ while (idx < sizeof(mem)/sizeof(mem[0])) {
+ mem[idx].basek = 0;
+ mem[idx].sizek = 0;
+ idx++;
+ }
+ return mem;
+}
+
+static struct device_operations northbridge_operations = {
+ .read_resources = tm5800_read_resources,
+ .set_resources = tm5800_set_resources,
+ .enable_resources = tm5800_enable_resources,
+ .init = mcf0_control_init,
+ .scan_bus = tm5800_scan_chains,
+ .enable = 0,
+};
+
+static struct pci_driver mcf0_driver __pci_driver = {
+ .ops = &northbridge_operations,
+ .vendor = PCI_VENDOR_ID_AMD,
+ .device = 0x1100,
+};
+
+static void enumerate(struct chip *chip)
+{
+ chip_enumerate(chip);
+ chip->dev->ops = &northbridge_operations;
+}
+
+struct chip_control northbridge_amd_tm5800_control = {
+ .name = "Transmeta tm5800 Northbridge",
+ .enumerate = enumerate,
+};
diff --git a/src/northbridge/transmeta/tm5800/northbridge.h b/src/northbridge/transmeta/tm5800/northbridge.h
new file mode 100644
index 0000000000..6d3b60f25b
--- /dev/null
+++ b/src/northbridge/transmeta/tm5800/northbridge.h
@@ -0,0 +1,5 @@
+#ifndef NORTHBRIDGE_AMD_AMDK8_H
+#define NORTHBRIDGE_AMD_AMDK8_H
+
+
+#endif /* NORTHBRIDGE_AMD_AMDK8_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 05:11:02 +0000