2 * This file is part of the coreboot project.
4 * Copyright (C) 2011 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
22 #include <arch/romcc_io.h>
25 #if CONFIG_CONSOLE_POST == 1
45 #ifndef CONFIG_TTYS0_DIV
46 #if ((115200%CONFIG_TTYS0_BAUD) != 0)
47 #error Bad ttys0 baud rate
49 #define CONFIG_TTYS0_DIV (115200/CONFIG_TTYS0_BAUD)
50 #endif // CONFIG_TTYS0_DIV
52 #define UART_LCS CONFIG_TTYS0_LCS
54 #endif // CONFIG_CONSOLE_POST == 1
57 static void sb900_enable_rom(void)
63 dev = PCI_DEV(0, 0x14, 0x03);
64 /* SB900 LPC Bridge 0:20:3:44h.
65 * BIT6: Port Enable for serial port 0x3f8-0x3ff
66 * BIT29: Port Enable for KBC port 0x60 and 0x64
67 * BIT30: Port Enable for ACPI Micro-Controller port 0x66 and 0x62
69 dword = pci_io_read_config32(dev, 0x44);
70 //dword |= (1<<6) | (1<<29) | (1<<30) ;
71 /*Turn on all of LPC IO Port decode enable */
73 pci_io_write_config32(dev, 0x44, dword);
75 /* SB900 LPC Bridge 0:20:3:48h.
76 * BIT0: Port Enable for SuperIO 0x2E-0x2F
77 * BIT1: Port Enable for SuperIO 0x4E-0x4F
78 * BIT4: Port Enable for LPC ROM Address Arrage2 (0x68-0x6C)
79 * BIT6: Port Enable for RTC IO 0x70-0x73
80 * BIT21: Port Enable for Port 0x80
82 dword = pci_io_read_config32(dev, 0x48);
83 dword |= (1<<0) | (1<<1) | (1<<4) | (1<<6) | (1<<21) ;
84 pci_io_write_config32(dev, 0x48, dword);
86 /* Enable 4MB rom access at 0xFFE00000 - 0xFFFFFFFF */
87 /* Set the 4MB enable bits */
88 word = pci_io_read_config16(dev, 0x6c);
90 pci_io_write_config16(dev, 0x6c, word);
93 static void bootblock_southbridge_init(void)
95 /* Setup the rom access for 2M */