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MIPS: qemu-malta: add support for emulated MIPS Malta board

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Add minimal support for the MIPS Malta CoreLV board
emulated by Qemu. The only supported peripherial is
the UART.

This is enough to boot U-Boot to the command prompt
both in little and big endian mode.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
master
Gabor Juhos 11 years ago committed by Tom Rini
parent 843a76b66b
commit 5a4dcfac1e
6 changed files with 206 additions and 0 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 16
      arch/mips/include/asm/malta.h
  2. 45
      board/qemu-malta/Makefile
  3. 19
      board/qemu-malta/lowlevel_init.S
  4. 20
      board/qemu-malta/qemu-malta.c
  5. 2
      boards.cfg
  6. 104
      include/configs/qemu-malta.h

16
arch/mips/include/asm/malta.h
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@ -0,0 +1,16 @@
/*
* Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#ifndef _MIPS_ASM_MALTA_H
#define _MIPS_ASM_MALTA_H
#define MALTA_IO_PORT_BASE 0x10000000
#define MALTA_UART_BASE (MALTA_IO_PORT_BASE + 0x3f8)
#endif /* _MIPS_ASM_MALTA_H */

45
board/qemu-malta/Makefile
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#
# (C) Copyright 2003-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# 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 = $(BOARD).o
SOBJS = lowlevel_init.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(OBJS) $(SOBJS)
$(call cmd_link_o_target, $(OBJS) $(SOBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

19
board/qemu-malta/lowlevel_init.S
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/*
* Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <asm/regdef.h>
.text
.set noreorder
.set mips32
.globl lowlevel_init
lowlevel_init:
jr ra
nop

20
board/qemu-malta/qemu-malta.c
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/*
* Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <common.h>
phys_size_t initdram(int board_type)
{
return CONFIG_SYS_MEM_SIZE;
}
int checkboard(void)
{
puts("Board: MIPS Malta CoreLV (Qemu)\n");
return 0;
}

2
boards.cfg
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@ -470,6 +470,8 @@ qemu_mips mips mips32 qemu-mips -
qemu_mipsel mips mips32 qemu-mips - - qemu-mips:SYS_LITTLE_ENDIAN
qemu_mips64 mips mips64 qemu-mips - - qemu-mips64:SYS_BIG_ENDIAN
qemu_mips64el mips mips64 qemu-mips - - qemu-mips64:SYS_LITTLE_ENDIAN
qemu_malta mips mips32 qemu-malta - - qemu-malta:MIPS32,SYS_BIG_ENDIAN
qemu_maltael mips mips32 qemu-malta - - qemu-malta:MIPS32,SYS_LITTLE_ENDIAN
vct_platinum mips mips32 vct micronas - vct:VCT_PLATINUM
vct_platinumavc mips mips32 vct micronas - vct:VCT_PLATINUMAVC
vct_platinumavc_onenand mips mips32 vct micronas - vct:VCT_PLATINUMAVC,VCT_ONENAND

104
include/configs/qemu-malta.h
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/*
* Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#ifndef _QEMU_MALTA_CONFIG_H
#define _QEMU_MALTA_CONFIG_H
#include <asm/addrspace.h>
#include <asm/malta.h>
/*
* System configuration
*/
#define CONFIG_QEMU_MALTA
/*
* CPU Configuration
*/
#define CONFIG_SYS_MHZ 250 /* arbitrary value */
#define CONFIG_SYS_MIPS_TIMER_FREQ (CONFIG_SYS_MHZ * 1000000)
#define CONFIG_SYS_HZ 1000
#define CONFIG_SYS_DCACHE_SIZE 16384 /* arbitrary value */
#define CONFIG_SYS_ICACHE_SIZE 16384 /* arbitrary value */
#define CONFIG_SYS_CACHELINE_SIZE 32 /* arbitrary value */
#define CONFIG_SWAP_IO_SPACE
/*
* Memory map
*/
#define CONFIG_SYS_TEXT_BASE 0xbfc00000 /* Rom version */
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
#define CONFIG_SYS_SDRAM_BASE 0x80000000 /* Cached addr */
#define CONFIG_SYS_MEM_SIZE (256 * 1024 * 1024)
#define CONFIG_SYS_INIT_SP_OFFSET 0x400000
#define CONFIG_SYS_LOAD_ADDR 0x81000000
#define CONFIG_SYS_MEMTEST_START 0x80100000
#define CONFIG_SYS_MEMTEST_END 0x80800000
#define CONFIG_SYS_MALLOC_LEN (128 * 1024)
#define CONFIG_SYS_BOOTPARAMS_LEN (128 * 1024)
/*
* Console configuration
*/
#if defined(CONFIG_SYS_LITTLE_ENDIAN)
#define CONFIG_SYS_PROMPT "qemu-maltael # "
#else
#define CONFIG_SYS_PROMPT "qemu-malta # "
#endif
#define CONFIG_SYS_CBSIZE 256
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_MAXARGS 16
#define CONFIG_AUTO_COMPLETE
#define CONFIG_CMDLINE_EDITING
/*
* Serial driver
*/
#define CONFIG_BAUDRATE 115200
#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE 1
#define CONFIG_SYS_NS16550_CLK 115200
#define CONFIG_SYS_NS16550_COM1 CKSEG1ADDR(MALTA_UART_BASE)
#define CONFIG_CONS_INDEX 1
/*
* Environment
*/
#define CONFIG_ENV_IS_NOWHERE
#define CONFIG_ENV_SIZE 0x10000
/*
* Flash configuration
*/
#define CONFIG_SYS_NO_FLASH
/*
* Commands
*/
#include <config_cmd_default.h>
#undef CONFIG_CMD_FPGA
#undef CONFIG_CMD_LOADB
#undef CONFIG_CMD_LOADS
#undef CONFIG_CMD_NET
#undef CONFIG_CMD_NFS
#define CONFIG_SYS_LONGHELP /* verbose help, undef to save memory */
#endif /* _QEMU_MALTA_CONFIG_H */
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