From e2b53e14327ea01dff9291815b10709b74b661f2 Mon Sep 17 00:00:00 2001
From: Stefan Reinauer <stepan@openbios.org>
Date: Mon, 28 Jun 2004 11:59:45 +0000
Subject: add northbridge code for qemu-i386
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1611 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
---
src/northbridge/emulation/qemu-i386/Config.lb | 2 +
src/northbridge/emulation/qemu-i386/chip.h | 5 +
src/northbridge/emulation/qemu-i386/northbridge.c | 115 ++++++++++++++++++++++
src/northbridge/emulation/qemu-i386/northbridge.h | 6 ++
4 files changed, 128 insertions(+)
create mode 100644 src/northbridge/emulation/qemu-i386/Config.lb
create mode 100644 src/northbridge/emulation/qemu-i386/chip.h
create mode 100644 src/northbridge/emulation/qemu-i386/northbridge.c
create mode 100644 src/northbridge/emulation/qemu-i386/northbridge.h
(limited to 'src')
diff --git a/src/northbridge/emulation/qemu-i386/Config.lb b/src/northbridge/emulation/qemu-i386/Config.lb
new file mode 100644
index 0000000000..4a0c2c8658
--- /dev/null
+++ b/src/northbridge/emulation/qemu-i386/Config.lb
@@ -0,0 +1,2 @@
+config chip.h
+object northbridge.o
diff --git a/src/northbridge/emulation/qemu-i386/chip.h b/src/northbridge/emulation/qemu-i386/chip.h
new file mode 100644
index 0000000000..04850f22ec
--- /dev/null
+++ b/src/northbridge/emulation/qemu-i386/chip.h
@@ -0,0 +1,5 @@
+struct northbridge_emulation_qemu_i386_config
+{
+};
+
+extern struct chip_control northbridge_emulation_qemu_i386_control;
diff --git a/src/northbridge/emulation/qemu-i386/northbridge.c b/src/northbridge/emulation/qemu-i386/northbridge.c
new file mode 100644
index 0000000000..9a8f557302
--- /dev/null
+++ b/src/northbridge/emulation/qemu-i386/northbridge.c
@@ -0,0 +1,115 @@
+#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/hypertransport.h>
+#include <device/chip.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bitops.h>
+#include "chip.h"
+#include "northbridge.h"
+
+void hard_reset(void)
+{
+ printk_err("Hard_RESET!!!\n");
+}
+
+struct mem_range *sizeram(void)
+{
+ unsigned long mmio_basek;
+ static struct mem_range mem[10];
+ device_t dev;
+ int i, idx;
+ unsigned char rambits;
+
+ dev = dev_find_slot(0, 0);
+ if (!dev) {
+ printk_err("Cannot find PCI: 0:0\n");
+ return 0;
+ }
+ mem[0].basek = 0;
+ mem[0].sizek = 65536;
+#if 0
+ idx = 1;
+ while(idx < sizeof(mem)/sizeof(mem[0])) {
+ mem[idx].basek = 0;
+ mem[idx].sizek = 0;
+ idx++;
+ }
+ for(rambits = 0, i = 0; i < sizeof(ramregs)/sizeof(ramregs[0]); i++) {
+ unsigned char reg;
+ reg = pci_read_config8(dev, ramregs[i]);
+ /* these are ENDING addresses, not sizes.
+ * if there is memory in this slot, then reg will be > rambits.
+ * So we just take the max, that gives us total.
+ * We take the highest one to cover for once and future linuxbios
+ * bugs. We warn about bugs.
+ */
+ if (reg > rambits)
+ rambits = reg;
+ if (reg < rambits)
+ printk_err("ERROR! register 0x%x is not set!\n",
+ ramregs[i]);
+ }
+
+ printk_debug("I would set ram size to 0x%x Kbytes\n", (rambits)*8*1024);
+ mem[0].sizek = rambits*8*1024;
+#endif
+#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
+
+ return mem;
+}
+
+static void enumerate(struct chip *chip)
+{
+ extern struct device_operations default_pci_ops_bus;
+ chip_enumerate(chip);
+ chip->dev->ops = &default_pci_ops_bus;
+}
+
+static void random_fixup() {
+ device_t pcidev = dev_find_slot(0, 0);
+
+ printk_warning("QEMU random fixup ...\n");
+ if (pcidev) {
+ // pci_write_config8(pcidev, 0x0, 0x0);
+ }
+}
+
+static void northbridge_init(struct chip *chip, enum chip_pass pass)
+{
+
+ struct northbridge_dummy_qemu_i386_config *conf =
+ (struct northbridge_dummy_qemu_i386_config *)chip->chip_info;
+
+ switch (pass) {
+ case CONF_PASS_PRE_PCI:
+ break;
+
+ case CONF_PASS_POST_PCI:
+ break;
+
+ case CONF_PASS_PRE_BOOT:
+ random_fixup();
+ break;
+
+ default:
+ /* nothing yet */
+ break;
+ }
+}
+
+struct chip_control northbridge_emulation_qemu_i386_control = {
+ .enumerate = enumerate,
+ .enable = northbridge_init,
+ .name = "QEMU Northbridge",
+};
diff --git a/src/northbridge/emulation/qemu-i386/northbridge.h b/src/northbridge/emulation/qemu-i386/northbridge.h
new file mode 100644
index 0000000000..ef63ebea78
--- /dev/null
+++ b/src/northbridge/emulation/qemu-i386/northbridge.h
@@ -0,0 +1,6 @@
+#ifndef NORTHBRIDGE_VIA_VT8623_H
+#define NORTHBRIDGE_VIA_VT8623_H
+
+extern unsigned int vt8623_scan_root_bus(device_t root, unsigned int max);
+
+#endif /* NORTHBRIDGE_VIA_VT8623_H */
--
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