[coreboot] r903 - coreboot-v3/mainboard/amd/dbm690t

[svn at coreboot.org]

Author: rminnich
Date: 2008-10-07 01:31:18 +0200 (Tue, 07 Oct 2008)
New Revision: 903

Added:
   coreboot-v3/mainboard/amd/dbm690t/mainboard.c
Log:
Add file needed for compilation. 

Signed-off-by: Ronald G. Minnich <rminnich at gmail.com>
Acked-by: Ronald G. Minnich <rminnich at gmail.com>



Added: coreboot-v3/mainboard/amd/dbm690t/mainboard.c
===================================================================
--- coreboot-v3/mainboard/amd/dbm690t/mainboard.c	                        (rev 0)
+++ coreboot-v3/mainboard/amd/dbm690t/mainboard.c	2008-10-06 23:31:18 UTC (rev 903)
@@ -0,0 +1,133 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * 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 <mainboard.h>
+#include <config.h>
+#include <types.h>
+#include <lib.h>
+#include <console.h>
+#include <cpu.h>
+#include <globalvars.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <string.h>
+#include <msr.h>
+#include <io.h>
+#include <amd/k8/k8.h>
+#include <mc146818rtc.h>
+#include <spd.h>
+
+unsigned long uma_memory_start, uma_memory_size;
+
+/********************************************************
+* dbm690t uses a BCM5789 as on-board NIC.
+* It has a pin named LOW_POWER to enable it into LOW POWER state.
+* In order to run NIC, we should let it out of Low power state. This pin
+* is controlled by sb600 GPM3.
+* RRG4.2.3 GPM as GPIO
+* GPM pins can be used as GPIO. The GPM I/O functions is controlled by three registers:
+* I/O C50, C51, C52, PM I/O94, 95, 96.
+* RRG4.2.3.1 GPM pins as Input
+* RRG4.2.3.2 GPM pins as Output
+********************************************************/
+static void enable_onboard_nic(void)
+{
+	u8 byte;
+
+	printk(BIOS_INFO, "enable_onboard_nic.\n");
+
+	outb(0x13, 0xC50);
+
+	byte = inb(0xC51);
+	byte &= 0x3F;
+	byte |= 0x40;
+	outb(byte, 0xC51);
+
+	byte = inb(0xC52);
+	byte &= ~0x8;
+	outb(byte, 0xC52);
+
+	byte = inb(0xC51);
+	byte &= 0x3F;
+	byte |= 0x80;		/* 7:6=10 */
+	outb(byte, 0xC51);
+
+	byte = inb(0xC52);
+	byte &= ~0x8;
+	outb(byte, 0xC52);
+}
+
+/*************************************************
+* enable the dedicated function in dbm690t board.
+* This function called early than rs690_enable.
+*************************************************/
+void dbm690t_enable(struct device * dev)
+{
+	struct mainboard_amd_dbm690t_config *mainboard = dev->device_configuration;
+
+#if (CONFIG_GFXUMA == 1)
+	struct msr msr, msr2;
+
+	/* TOP_MEM: the top of DRAM below 4G */
+	msr = rdmsr(TOP_MEM);
+	printk(BIOS_INFO, "dbm690t_enable, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n", msr.lo, msr.hi);
+
+	/* TOP_MEM2: the top of DRAM above 4G */
+	msr2 = rdmsr(TOP_MEM2);
+	printk(BIOS_INFO, "dbm690t_enable, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n", msr2.lo, msr2.hi);
+
+	switch (msr.lo) {
+		case 0x10000000: /* 256M system memory */
+			uma_memory_size = 0x2000000; /* 32M recommended UMA */
+			break;
+
+		case 0x18000000: /* 384M system memory */
+			uma_memory_size = 0x4000000; /* 64M recommended UMA */
+			break;
+
+		case 0x20000000: /* 512M system memory */
+			uma_memory_size = 0x4000000; /* 64M recommended UMA */
+			break;
+
+		default: /* 1GB and above system memory */
+			uma_memory_size = 0x8000000; /* 128M recommended UMA */
+			break;
+	}
+
+	uma_memory_start = msr.lo - uma_memory_size;/* TOP_MEM1 */
+	printk(BIOS_INFO, "dbm690t_enable: uma size 0x%08lx, memory start 0x%08lx\n", uma_memory_size, uma_memory_start);
+
+	/* TODO: TOP_MEM2 */
+#else
+	uma_memory_size = 0x8000000; /* 128M recommended UMA */
+	uma_memory_start = 0x38000000; /* 1GB  system memory supposed */
+#endif
+
+	printk(BIOS_INFO, "dbm690t_enable. dev=%p\n", dev);
+
+	enable_onboard_nic();
+}
+
+struct device_operations dbm690t = {
+	.id = {.type = DEVICE_ID_PCI,
+		{.pci = {.vendor = PCI_VENDOR_ID_AMD,
+			      .device = 1}}},
+	.constructor		 = default_device_constructor,
+	.phase3_enable_scan = dbm690t_enable,
+};