[U-Boot] [RFC 01/10] MIPS: qemu-malta: add support for emulated MIPS Malta board
Gabor Juhos
juhosg at openwrt.org
Sat Jan 19 16:19:28 CET 2013
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 at openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck at googlemail.com>
---
Screenshot:
U-Boot 2013.01-00005-g917cd41 (Jan 18 2013 - 20:08:44)
Board: MIPS Malta CoreLV (Qemu)
DRAM: 256 MiB
Using default environment
In: serial
Out: serial
Err: serial
qemu-malta # help
? - alias for 'help'
base - print or set address offset
bdinfo - print Board Info structure
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootm - boot application image from memory
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
go - start application at address 'addr'
help - print command description/usage
iminfo - print header information for application image
imxtract- extract a part of a multi-image
itest - return true/false on integer compare
loop - infinite loop on address range
md - memory display
mm - memory modify (auto-incrementing address)
mtest - simple RAM read/write test
mw - memory write (fill)
nm - memory modify (constant address)
printenv- print environment variables
reset - Perform RESET of the CPU
run - run commands in an environment variable
setenv - set environment variables
sleep - delay execution for some time
source - run script from memory
version - print monitor, compiler and linker version
qemu-malta # version
U-Boot 2013.01-00005-g917cd41 (Jan 18 2013 - 20:08:44)
mips-openwrt-linux-uclibc-gcc (Linaro GCC 4.6-2012.12) 4.6.4 20121210
(prerelease)
GNU ld (GNU Binutils) 2.22
qemu-malta #
---
arch/mips/include/asm/malta.h | 16 ++++++
board/qemu-malta/Makefile | 45 +++++++++++++++++
board/qemu-malta/lowlevel_init.S | 19 +++++++
board/qemu-malta/qemu-malta.c | 20 ++++++++
board/qemu-malta/u-boot.lds | 78 ++++++++++++++++++++++++++++
boards.cfg | 2 +
include/configs/qemu-malta.h | 104 ++++++++++++++++++++++++++++++++++++++
7 files changed, 284 insertions(+)
create mode 100644 arch/mips/include/asm/malta.h
create mode 100644 board/qemu-malta/Makefile
create mode 100644 board/qemu-malta/lowlevel_init.S
create mode 100644 board/qemu-malta/qemu-malta.c
create mode 100644 board/qemu-malta/u-boot.lds
create mode 100644 include/configs/qemu-malta.h
diff --git a/arch/mips/include/asm/malta.h b/arch/mips/include/asm/malta.h
new file mode 100644
index 0000000..b215164
--- /dev/null
+++ b/arch/mips/include/asm/malta.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg at 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 */
diff --git a/board/qemu-malta/Makefile b/board/qemu-malta/Makefile
new file mode 100644
index 0000000..6251bb8
--- /dev/null
+++ b/board/qemu-malta/Makefile
@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2003-2006
+# Wolfgang Denk, DENX Software Engineering, wd at 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
+
+#########################################################################
diff --git a/board/qemu-malta/lowlevel_init.S b/board/qemu-malta/lowlevel_init.S
new file mode 100644
index 0000000..c5c5bd9
--- /dev/null
+++ b/board/qemu-malta/lowlevel_init.S
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg at 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
diff --git a/board/qemu-malta/qemu-malta.c b/board/qemu-malta/qemu-malta.c
new file mode 100644
index 0000000..9ba711d
--- /dev/null
+++ b/board/qemu-malta/qemu-malta.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg at 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;
+}
diff --git a/board/qemu-malta/u-boot.lds b/board/qemu-malta/u-boot.lds
new file mode 100644
index 0000000..cb2356f
--- /dev/null
+++ b/board/qemu-malta/u-boot.lds
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk Engineering, <wd at 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
+ */
+
+/*
+OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
+*/
+#if defined(CONFIG_64BIT)
+OUTPUT_FORMAT("elf64-tradbigmips", "elf64-tradbigmips", "elf64-tradlittlemips")
+#else
+OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradlittlemips")
+#endif
+OUTPUT_ARCH(mips)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x00000000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ *(.text*)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+ . = ALIGN(4);
+ .data : { *(.data*) }
+
+ . = .;
+ _gp = ALIGN(16) +0x7ff0;
+
+ .got : {
+ __got_start = .;
+ *(.got)
+ __got_end = .;
+ }
+
+ . = ALIGN(4);
+ .sdata : { *(.sdata*) }
+
+ . = ALIGN(4);
+ .u_boot_list : {
+ #include <u-boot.lst>
+ }
+
+ uboot_end_data = .;
+#if defined(CONFIG_64BIT)
+ num_got_entries = (__got_end - __got_start) >> 3;
+#else
+ num_got_entries = (__got_end - __got_start) >> 2;
+#endif
+
+ . = ALIGN(4);
+ .sbss : { *(.sbss*) }
+ .bss : { *(.bss*) . = ALIGN(4); }
+ uboot_end = .;
+}
diff --git a/boards.cfg b/boards.cfg
index e4b0d44..ac27a46 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -426,6 +426,8 @@ 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
diff --git a/include/configs/qemu-malta.h b/include/configs/qemu-malta.h
new file mode 100644
index 0000000..c72c5dd
--- /dev/null
+++ b/include/configs/qemu-malta.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg at 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 */
--
1.7.10
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