Commit ef5a5b00 authored by Gabe Black's avatar Gabe Black Committed by Graeme Russ

x86: Initial commit for running as a coreboot payload

Add a target for running u-boot as a coreboot payload in boards.cfg, a
board, CPU and a config. This is a skeleton implementation which always
reports the size of memory as 64 MB.
Signed-off-by: default avatarGabe Black <gabeblack@chromium.org>
parent 7b725f84
#
# Copyright (c) 2011 The Chromium OS Authors.
#
# (C) Copyright 2008
# Graeme Russ, graeme.russ@gmail.com.
#
# (C) Copyright 2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# (C) Copyright 2002
# Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# 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., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB := $(obj)lib$(SOC).o
COBJS-$(CONFIG_SYS_COREBOOT) += sdram.o
SOBJS-$(CONFIG_SYS_COREBOOT) += coreboot_car.o
SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
$(call cmd_link_o_target, $(OBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################
/*
* Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
*
* This program is used to generate definitions needed by
* assembly language modules.
*
* We use the technique used in the OSF Mach kernel code:
* generate asm statements containing #defines,
* compile this file to assembler, and then extract the
* #defines from the assembly-language output.
*
* 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.
*/
#include <common.h>
#include <linux/kbuild.h>
int main(void)
{
DEFINE(GENERATED_GD_RELOC_OFF, offsetof(gd_t, reloc_off));
return 0;
}
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2010-2011
* Graeme Russ, <graeme.russ@gmail.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
.section .text
.globl car_init
car_init:
jmp car_init_ret
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2010,2011
* Graeme Russ, <graeme.russ@gmail.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/u-boot-x86.h>
DECLARE_GLOBAL_DATA_PTR;
int dram_init_f(void)
{
gd->ram_size = 64*1024*1024;
return 0;
}
int dram_init(void)
{
return 0;
}
#
# Copyright (c) 2011 The Chromium OS Authors.
# (C) Copyright 2008
# Graeme Russ, graeme.russ@gmail.com.
#
# (C) Copyright 2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# (C) Copyright 2002
# Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# 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., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
COBJS-y += coreboot.o
COBJS-$(CONFIG_PCI) += coreboot_pci.o
SOBJS-y += coreboot_start16.o
SOBJS-y += coreboot_start.o
SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
$(LIB): $(obj).depend $(OBJS) $(SOBJS)
$(call cmd_link_o_target, $(OBJS) $(SOBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/u-boot-x86.h>
#include <flash.h>
#include <netdev.h>
DECLARE_GLOBAL_DATA_PTR;
unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
/*
* Miscellaneous platform dependent initializations
*/
int board_early_init_f(void)
{
return 0;
}
int board_early_init_r(void)
{
/* CPU Speed to 100MHz */
gd->cpu_clk = 100000000;
/* Crystal is 33.000MHz */
gd->bus_clk = 33000000;
return 0;
}
void show_boot_progress(int val)
{
}
int last_stage_init(void)
{
return 0;
}
#ifndef CONFIG_SYS_NO_FLASH
ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
{
return 0;
}
#endif
int board_eth_init(bd_t *bis)
{
return pci_eth_init(bis);
}
void setup_pcat_compatibility()
{
}
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008,2009
* Graeme Russ, <graeme.russ@gmail.com>
*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
void pci_init_board(void)
{
}
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/* board early intialization */
.globl early_board_init
early_board_init:
/* No 32-bit board specific initialisation */
jmp early_board_init_ret
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* 16bit initialization code.
* This code have to map the area of the boot flash
* that is used by U-boot to its final destination.
*/
.text
.section .start16, "ax"
.code16
.globl board_init16
board_init16:
jmp board_init16_ret
.section .bios, "ax"
.code16
.globl realmode_reset
.hidden realmode_reset
.type realmode_reset, @function
realmode_reset:
1: hlt
jmp 1
......@@ -1007,6 +1007,7 @@ gr_cpci_ax2000 sparc leon3 - gaisler
gr_ep2s60 sparc leon3 - gaisler
grsim sparc leon3 - gaisler
gr_xc3s_1500 sparc leon3 - gaisler
coreboot-x86 x86 x86 coreboot chromebook-x86 coreboot coreboot:SYS_TEXT_BASE=0xFC0000
eNET x86 x86 eNET - sc520 eNET:SYS_TEXT_BASE=0x38040000
eNET_SRAM x86 x86 eNET - sc520 eNET:SYS_TEXT_BASE=0x19000000
# Target ARCH CPU Board name Vendor SoC Options
......
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <asm/ibmpc.h>
/*
* board/config.h - configuration options, board specific
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/*
* High Level Configuration Options
* (easy to change)
*/
#define CONFIG_SYS_COREBOOT
#undef CONFIG_SHOW_BOOT_PROGRESS
#define CONFIG_LAST_STAGE_INIT
/*-----------------------------------------------------------------------
* Watchdog Configuration
*/
#undef CONFIG_WATCHDOG
#undef CONFIG_HW_WATCHDOG
/*-----------------------------------------------------------------------
* Real Time Clock Configuration
*/
#define CONFIG_RTC_MC146818
#define CONFIG_SYS_ISA_IO_BASE_ADDRESS 0
/*-----------------------------------------------------------------------
* Serial Configuration
*/
#define CONFIG_SERIAL_MULTI
#define CONFIG_CONS_INDEX 1
#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE 1
#define CONFIG_SYS_NS16550_CLK 1843200
#define CONFIG_BAUDRATE 9600
#define CONFIG_SYS_BAUDRATE_TABLE {300, 600, 1200, 2400, 4800, \
9600, 19200, 38400, 115200}
#define CONFIG_SYS_NS16550_COM1 UART0_BASE
#define CONFIG_SYS_NS16550_COM2 UART1_BASE
#define CONFIG_SYS_NS16550_PORT_MAPPED
/* max. 1 IDE bus */
#define CONFIG_SYS_IDE_MAXBUS 1
/* max. 1 drive per IDE bus */
#define CONFIG_SYS_IDE_MAXDEVICE (CONFIG_SYS_IDE_MAXBUS * 1)
#define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_ISA_IO_BASE_ADDRESS
#define CONFIG_SYS_ATA_IDE0_OFFSET 0x01f0
#define CONFIG_SYS_ATA_IDE1_OFFSET 0x0170
#define CONFIG_SYS_ATA_DATA_OFFSET 0
#define CONFIG_SYS_ATA_REG_OFFSET 0
#define CONFIG_SYS_ATA_ALT_OFFSET 0x200
#define CONFIG_SUPPORT_VFAT
/************************************************************
* ATAPI support (experimental)
************************************************************/
#define CONFIG_ATAPI
/************************************************************
* DISK Partition support
************************************************************/
#define CONFIG_DOS_PARTITION
#define CONFIG_MAC_PARTITION
#define CONFIG_ISO_PARTITION /* Experimental */
/*-----------------------------------------------------------------------
* Video Configuration
*/
#undef CONFIG_VIDEO
#undef CONFIG_CFB_CONSOLE
/*-----------------------------------------------------------------------
* Command line configuration.
*/
#include <config_cmd_default.h>
#define CONFIG_CMD_BDI
#define CONFIG_CMD_BOOTD
#define CONFIG_CMD_CONSOLE
#define CONFIG_CMD_DATE
#define CONFIG_CMD_ECHO
#undef CONFIG_CMD_FLASH
#define CONFIG_CMD_FPGA
#define CONFIG_CMD_IMI
#undef CONFIG_CMD_IMLS
#define CONFIG_CMD_IRQ
#define CONFIG_CMD_ITEST
#define CONFIG_CMD_LOADB
#define CONFIG_CMD_LOADS
#define CONFIG_CMD_MEMORY
#define CONFIG_CMD_MISC
#define CONFIG_CMD_NET
#undef CONFIG_CMD_NFS
#define CONFIG_CMD_PCI
#define CONFIG_CMD_PING
#define CONFIG_CMD_RUN
#define CONFIG_CMD_SAVEENV
#define CONFIG_CMD_SETGETDCR
#define CONFIG_CMD_SOURCE
#define CONFIG_CMD_XIMG
#define CONFIG_CMD_IDE
#define CONFIG_CMD_FAT
#define CONFIG_CMD_EXT2
#define CONFIG_BOOTDELAY 2
#define CONFIG_BOOTARGS "root=/dev/mtdblock0 console=ttyS0,9600"
#if defined(CONFIG_CMD_KGDB)
#define CONFIG_KGDB_BAUDRATE 115200
#define CONFIG_KGDB_SER_INDEX 2
#endif
/*
* Miscellaneous configurable options
*/
#define CONFIG_SYS_LONGHELP
#define CONFIG_SYS_PROMPT "boot > "
#define CONFIG_SYS_CBSIZE 256
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
sizeof(CONFIG_SYS_PROMPT) + \
16)
#define CONFIG_SYS_MAXARGS 16
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
#define CONFIG_SYS_MEMTEST_START 0x00100000
#define CONFIG_SYS_MEMTEST_END 0x01000000
#define CONFIG_SYS_LOAD_ADDR 0x100000
#define CONFIG_SYS_HZ 1000
#define CONFIG_SYS_X86_ISR_TIMER
/*-----------------------------------------------------------------------
* SDRAM Configuration
*/
#define CONFIG_NR_DRAM_BANKS 4
/* CONFIG_SYS_SDRAM_DRCTMCTL Overrides the following*/
#undef CONFIG_SYS_SDRAM_PRECHARGE_DELAY
#undef CONFIG_SYS_SDRAM_RAS_CAS_DELAY
#undef CONFIG_SYS_SDRAM_CAS_LATENCY_2T
#undef CONFIG_SYS_SDRAM_CAS_LATENCY_3T
/*-----------------------------------------------------------------------
* CPU Features
*/
#define CONFIG_SYS_GENERIC_TIMER
#define CONFIG_SYS_PCAT_INTERRUPTS
#define CONFIG_SYS_NUM_IRQS 16
/*-----------------------------------------------------------------------
* Memory organization:
* 32kB Stack
* 16kB Cache-As-RAM @ 0x19200000
* 256kB Monitor
* (128kB + Environment Sector Size) malloc pool
*/
#define CONFIG_SYS_STACK_SIZE (32 * 1024)
#define CONFIG_SYS_INIT_SP_ADDR (256 * 1024 + 16 * 1024)
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
#define CONFIG_SYS_MONITOR_LEN (256 * 1024)
#define CONFIG_SYS_MALLOC_LEN (0x20000 + 128 * 1024)
/* Address of temporary Global Data */
#define CONFIG_SYS_INIT_GD_ADDR (256 * 1024)
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
/*-----------------------------------------------------------------------
* FLASH configuration
*/
#define CONFIG_SYS_NO_FLASH
#undef CONFIG_FLASH_CFI_DRIVER
#define CONFIG_SYS_MAX_FLASH_SECT 1
#define CONFIG_SYS_MAX_FLASH_BANKS 1
/*-----------------------------------------------------------------------
* Environment configuration
*/
#define CONFIG_ENV_IS_NOWHERE
#define CONFIG_ENV_SIZE 0x01000
/*-----------------------------------------------------------------------
* PCI configuration
*/
#define CONFIG_PCI
/*-----------------------------------------------------------------------
* Network device support
*/
#define CONFIG_NET_MULTI
#endif /* __CONFIG_H */
......@@ -32,7 +32,7 @@ extern struct serial_device *default_serial_console(void);
defined(CONFIG_MB86R0x) || defined(CONFIG_MPC5xxx) || \
defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \
defined(CONFIG_MPC86xx) || defined(CONFIG_SYS_SC520) || \
defined(CONFIG_TEGRA2)
defined(CONFIG_TEGRA2) || defined(CONFIG_SYS_COREBOOT)
extern struct serial_device serial0_device;
extern struct serial_device serial1_device;
#if defined(CONFIG_SYS_NS16550_SERIAL)
......
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