2 * This file is part of the coreboot project.
4 * Copyright (C) 2010 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <console/console.h>
21 #include <device/device.h>
22 #include <device/pci.h>
24 #include <boot/tables.h>
25 #include <cpu/x86/msr.h>
26 #include <cpu/amd/mtrr.h>
27 #include <device/pci_def.h>
28 #include <southbridge/amd/sb700/sb700.h>
31 #define SMBUS_IO_BASE 0x6000
33 uint64_t uma_memory_base, uma_memory_size;
35 void set_pcie_dereset(void);
36 void set_pcie_reset(void);
37 u8 is_dev3_present(void);
38 void set_pcie_dereset()
46 #if 0 /* not tested yet */
47 /********************************************************
48 * mahogany uses SB700 GPIO9 to detect IDE_DMA66.
49 * IDE_DMA66 is routed to GPIO 9. So we read Gpio 9 to
50 * get the cable type, 40 pin or 80 pin?
51 ********************************************************/
52 static void get_ide_dma66(void)
55 /*u32 sm_dev, ide_dev; */
56 device_t sm_dev, ide_dev;
58 sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
60 byte = pci_read_config8(sm_dev, 0xA9);
61 byte |= (1 << 5); /* Set Gpio9 as input */
62 pci_write_config8(sm_dev, 0xA9, byte);
64 ide_dev = dev_find_slot(0, PCI_DEVFN(0x14, 1));
65 byte = pci_read_config8(ide_dev, 0x56);
67 if ((1 << 5) & pci_read_config8(sm_dev, 0xAA))
68 byte |= 2 << 0; /* mode 2 */
70 byte |= 5 << 0; /* mode 5 */
71 pci_write_config8(ide_dev, 0x56, byte);
73 #endif /* get_ide_dma66 */
75 u8 is_dev3_present(void)
80 /*************************************************
81 * enable the dedicated function in mahogany board.
82 * This function called early than rs780_enable.
83 *************************************************/
84 static void mb_enable(device_t dev)
86 printk(BIOS_INFO, "Mainboard 939A785GMH/128M Enable. dev=0x%p\n", dev);
88 #if (CONFIG_GFXUMA == 1)
91 /* TOP_MEM: the top of DRAM below 4G */
94 (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
95 __func__, msr.lo, msr.hi);
97 /* TOP_MEM2: the top of DRAM above 4G */
98 msr2 = rdmsr(TOP_MEM2);
100 (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
101 __func__, msr2.lo, msr2.hi);
103 /* refer to UMA Size Consideration in 780 BDG. */
105 case 0x10000000: /* 256M system memory */
106 uma_memory_size = 0x4000000; /* 64M recommended UMA */
109 case 0x20000000: /* 512M system memory */
110 uma_memory_size = 0x8000000; /* 128M recommended UMA */
113 default: /* 1GB and above system memory */
114 uma_memory_size = 0x10000000; /* 256M recommended UMA */
118 uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */
119 printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
120 __func__, uma_memory_size, uma_memory_base);
124 uma_memory_size = 0x8000000; /* 128M recommended UMA */
125 uma_memory_base = 0x38000000; /* 1GB system memory supposed */
129 /* get_ide_dma66(); */
132 int add_mainboard_resources(struct lb_memory *mem)
134 /* UMA is removed from system memory in the northbridge code, but
135 * in some circumstances we want the memory mentioned as reserved.
137 #if (CONFIG_GFXUMA == 1)
138 printk(BIOS_INFO, "uma_memory_start=0x%llx, uma_memory_size=0x%llx \n",
139 uma_memory_base, uma_memory_size);
140 lb_add_memory_range(mem, LB_MEM_RESERVED, uma_memory_base,
146 struct chip_operations mainboard_ops = {
147 CHIP_NAME("Asrock 939A785GMH/128M Mainboard")
148 .enable_dev = mb_enable,
151 /* override the default SATA PHY setup */
152 void sb700_setup_sata_phys(struct device *dev) {
153 /* RPR7.6.1 Program the PHY Global Control to 0x2C00 */
154 pci_write_config16(dev, 0x86, 0x2c00);
156 /* RPR7.6.2 SATA GENI PHY ports setting */
157 pci_write_config32(dev, 0x88, 0x01B48016);
158 pci_write_config32(dev, 0x8c, 0x01B48016);
159 pci_write_config32(dev, 0x90, 0x01B48016);
160 pci_write_config32(dev, 0x94, 0x01B48016);
161 pci_write_config32(dev, 0x98, 0x01B48016);
162 pci_write_config32(dev, 0x9C, 0x01B48016);
164 /* RPR7.6.3 SATA GEN II PHY port setting for port [0~5]. */
165 pci_write_config16(dev, 0xA0, 0xA07A);
166 pci_write_config16(dev, 0xA2, 0xA07A);
167 pci_write_config16(dev, 0xA4, 0xA07A);
168 pci_write_config16(dev, 0xA6, 0xA07A);
169 pci_write_config16(dev, 0xA8, 0xA07A);
170 pci_write_config16(dev, 0xAA, 0xA0FF);