diff options
Diffstat (limited to 'src/mainboard/lippert/roadrunner-lx/cache_as_ram_auto.c')
-rw-r--r-- | src/mainboard/lippert/roadrunner-lx/cache_as_ram_auto.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/mainboard/lippert/roadrunner-lx/cache_as_ram_auto.c b/src/mainboard/lippert/roadrunner-lx/cache_as_ram_auto.c new file mode 100644 index 0000000000..ce55aa0afe --- /dev/null +++ b/src/mainboard/lippert/roadrunner-lx/cache_as_ram_auto.c @@ -0,0 +1,164 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 LiPPERT Embedded Computers GmbH + * Copyright (C) 2007 Advanced Micro Devices, Inc. + * + * Based on cache_as_ram_auto.c from AMD's DB800 and DBM690T mainboards. + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 + */ + +#define ASSEMBLY 1 + +#include <stdlib.h> +#include <stdint.h> +#include <device/pci_def.h> +#include <arch/io.h> +#include <device/pnp_def.h> +#include <arch/hlt.h> +#include "pc80/serial.c" +#include "arch/i386/lib/console.c" +#include "ram/ramtest.c" +#include "cpu/x86/bist.h" +#include "cpu/x86/msr.h" +#include <cpu/amd/lxdef.h> +#include <cpu/amd/geode_post_code.h> +#include "southbridge/amd/cs5536/cs5536.h" + +#define POST_CODE(x) outb(x, 0x80) + +#include "southbridge/amd/cs5536/cs5536_early_smbus.c" +#include "southbridge/amd/cs5536/cs5536_early_setup.c" +#include "superio/ite/it8712f/it8712f_early_serial.c" + +#define ManualConf 1 /* No automatic strapped PLL config */ +#define PLLMSRhi 0x0000049C /* Manual settings for the PLL */ +#define PLLMSRlo 0x00DE6001 +#define DIMM0 0xA0 +#define DIMM1 0xA2 + +static inline int spd_read_byte(unsigned int device, unsigned int address) +{ + if (device != DIMM0) return 0xFF; // no DIMM1, don't even try + return smbus_read_byte(device, address); +} + +#include "northbridge/amd/lx/raminit.h" +#include "northbridge/amd/lx/pll_reset.c" +#include "northbridge/amd/lx/raminit.c" +#include "sdram/generic_sdram.c" +#include "cpu/amd/model_lx/cpureginit.c" +#include "cpu/amd/model_lx/syspreinit.c" + +static void msr_init(void) +{ + msr_t msr; + + /* Setup access to the cache for under 1MB. */ + msr.hi = 0x24fffc02; + msr.lo = 0x1000A000; /* 0-A0000 write back */ + wrmsr(CPU_RCONF_DEFAULT, msr); + + msr.hi = 0x0; /* Write back */ + msr.lo = 0x0; + wrmsr(CPU_RCONF_A0_BF, msr); + wrmsr(CPU_RCONF_C0_DF, msr); + wrmsr(CPU_RCONF_E0_FF, msr); + + /* Setup access to the cache for under 640K. Note MC not setup yet. */ + msr.hi = 0x20000000; + msr.lo = 0xfff80; + wrmsr(MSR_GLIU0 + 0x20, msr); + + msr.hi = 0x20000000; + msr.lo = 0x80fffe0; + wrmsr(MSR_GLIU0 + 0x21, msr); + + msr.hi = 0x20000000; + msr.lo = 0xfff80; + wrmsr(MSR_GLIU1 + 0x20, msr); + + msr.hi = 0x20000000; + msr.lo = 0x80fffe0; + wrmsr(MSR_GLIU1 + 0x21, msr); +} + +static const u16 sio_init_table[] = { // hi=data, lo=index + 0x0707, // select LDN 7 (GPIO, SPI, watchdog, ...) + 0x1E2C, // disable ATXPowerGood - will cause a reboot! + 0x0423, // don't delay POWerOK1/2 + 0x9072, // watchdog triggers POWOK, counts seconds +#if !USE_WATCHDOG_ON_BOOT + 0x0073, 0x0074, // disable watchdog by setting timeout to 0 +#endif + 0xBF25, 0x372A, 0xF326, // select GPIO function for most pins + 0xBF27, 0xFF28, 0x2529, // (GP36=FAN_CTL3, GP13=PWROK1) + 0x1E2C, // VIN6=enabled?, FAN4/5 enabled, VIN7=internal, VIN3=enabled + 0x46B8, 0x0CB9, // enable pullups + 0x36C0, // enable Simple-I/O for GP15,14,12,11= LIVE_LED, WD_ACTIVE, RS485_EN2,1 + 0xFFC3, // enable Simple-I/O for GP47-40 (GPIOs on Supervisory Connector) + 0x26C8, // config GP15,12,11 as output; GP14 as input + 0x2DF5, // map Hw Monitor Thermal Output to GP55 + 0x0DF8, // map GP LED Blinking 1 to GP15=LIVE_LED (deactivate Simple-I/O to use) +}; + +/* Early mainboard specific GPIO setup. */ +static void mb_gpio_init(void) +{ + int i; + + /* Init SuperIO WDT, GPIOs. Done early, WDT init may trigger reset! */ + it8712f_enter_conf(); + for (i=0; i<ARRAY_SIZE(sio_init_table); i++) { + u16 val = sio_init_table[i]; + outb((u8)val, SIO_INDEX); outb(val>>8, SIO_DATA); + } + it8712f_exit_conf(); +} + +void cache_as_ram_main(void) +{ + POST_CODE(0x01); + + static const struct mem_controller memctrl[] = { + {.channel0 = {(0xa << 3) | 0, (0xa << 3) | 1}} + }; + + SystemPreInit(); + msr_init(); + + cs5536_early_setup(); + + /* Note: must do this AFTER the early_setup! It is counting on some + * early MSR setup for CS5536. + */ + it8712f_enable_serial(0, TTYS0_BASE); // does not use its 1st parameter + mb_gpio_init(); + uart_init(); + console_init(); + + pll_reset(ManualConf); + + cpuRegInit(); + + sdram_initialize(1, memctrl); + + /* Check memory. */ + /* ram_check(0x00000000, 640 * 1024); */ + + /* Memory is setup. Return to cache_as_ram.inc and continue to boot. */ + return; +} |