2 * This file is part of the coreboot project.
4 * Copyright (C) 2008 LiPPERT Embedded Computers GmbH
5 * Copyright (C) 2007 Advanced Micro Devices, Inc.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 /* Based on romstage.c from AMD's DB800 and DBM690T mainboards. */
26 #include <device/pci_def.h>
28 #include <device/pnp_def.h>
30 #include <console/console.h>
31 #include "cpu/x86/bist.h"
32 #include "cpu/x86/msr.h"
33 #include <cpu/amd/lxdef.h>
34 #include <cpu/amd/geode_post_code.h>
35 #include "southbridge/amd/cs5536/cs5536.h"
38 #include "southbridge/amd/cs5536/cs5536_early_smbus.c"
39 #include "southbridge/amd/cs5536/cs5536_early_setup.c"
40 #include "superio/ite/it8712f/it8712f_early_serial.c"
42 #define ManualConf 1 /* No automatic strapped PLL config */
43 #define PLLMSRhi 0x0000049C /* Manual settings for the PLL */
44 #define PLLMSRlo 0x00DE6001
46 static inline int spd_read_byte(unsigned int device, unsigned int address)
49 return 0xFF; /* No DIMM1, don't even try. */
51 return smbus_read_byte(device, address);
54 #include "northbridge/amd/lx/raminit.h"
55 #include "northbridge/amd/lx/pll_reset.c"
56 #include "northbridge/amd/lx/raminit.c"
57 #include "lib/generic_sdram.c"
58 #include "cpu/amd/model_lx/cpureginit.c"
59 #include "cpu/amd/model_lx/syspreinit.c"
60 #include "cpu/amd/model_lx/msrinit.c"
62 static const u16 sio_init_table[] = { // hi=data, lo=index
63 0x0707, // select LDN 7 (GPIO, SPI, watchdog, ...)
64 0x1E2C, // disable ATXPG; VIN6,FAN4/5,VIN3 enabled, VIN7 internal
65 0x1423, // don't delay PoWeROK1/2 - triggers 2nd reset
66 0x9072, // watchdog triggers PWROK, counts seconds
67 #if !CONFIG_USE_WATCHDOG_ON_BOOT
68 0x0073, 0x0074, // disarm watchdog by changing 56 s timeout to 0
70 0xBF25, 0x372A, 0xF326, // select GPIO function for most pins
71 0xBF27, 0xFF28, 0x2529, // (GP36=FAN_CTL3, GP13=PWROK1)
72 0x46B8, 0x0CB9, // enable pullups on RS485_EN
73 0x36C0, // enable Simple-I/O for GP15,14,12,11= LIVE_LED, WD_ACTIVE, RS485_EN2,1
74 0xFFC3, // enable Simple-I/O for GP47-40 (GPIOs on Supervisory Connector)
75 0x26C8, // config GP15,12,11 as output; GP14 as input
76 0x2DF5, // map Hw Monitor Thermal Output to GP55
77 0x0DF8, // map GP LED Blinking 1 to GP15=LIVE_LED (deactivate Simple-I/O to use)
80 /* Early mainboard specific GPIO setup. */
81 static void mb_gpio_init(void)
85 /* Init Super I/O WDT, GPIOs. Done early, WDT init may trigger reset! */
87 for (i = 0; i < ARRAY_SIZE(sio_init_table); i++) {
88 u16 val = sio_init_table[i];
89 outb((u8)val, SIO_INDEX);
90 outb(val >> 8, SIO_DATA);
95 void main(unsigned long bist)
99 static const struct mem_controller memctrl[] = {
100 {.channel0 = {DIMM0, DIMM1}}
106 cs5536_early_setup();
109 * Note: must do this AFTER the early_setup! It is counting on some
110 * early MSR setup for CS5536.
112 it8712f_enable_serial(0, CONFIG_TTYS0_BASE); // Does not use its 1st parameter
117 /* Halt if there was a built in self test failure */
118 report_bist_failure(bist);
120 pll_reset(ManualConf);
122 cpuRegInit(0, DIMM0, DIMM1, DRAM_TERMINATED);
124 sdram_initialize(1, memctrl);
127 /* ram_check(0x00000000, 640 * 1024); */
129 /* Memory is setup. Return to cache_as_ram.inc and continue to boot. */