* [PATCH 2/2] Add MIPS arch support to barebox
2011-06-27 17:13 [PATCH 1/2] include/linux/stat.h: make struct stat unified Antony Pavlov
@ 2011-06-27 17:13 ` Antony Pavlov
2011-06-28 5:11 ` Jean-Christophe PLAGNIOL-VILLARD
` (2 more replies)
2011-06-28 6:40 ` [PATCH 1/2] include/linux/stat.h: make struct stat unified Sascha Hauer
1 sibling, 3 replies; 13+ messages in thread
From: Antony Pavlov @ 2011-06-27 17:13 UTC (permalink / raw)
To: barebox; +Cc: Antony Pavlov
Only supported board is qemu malta:
* barebox works in uncached memory;
* no peripherals support, but serial port.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/architecture.dox | 1 +
arch/mips/Kconfig | 55 ++
arch/mips/Makefile | 51 ++
arch/mips/boards/malta/Makefile | 1 +
arch/mips/boards/malta/config.h | 19 +
arch/mips/boards/malta/serial.c | 64 ++
arch/mips/boot/Makefile | 4 +
arch/mips/boot/entry.c | 80 +++
arch/mips/boot/head.S | 233 +++++++
arch/mips/configs/malta_defconfig | 219 ++++++
arch/mips/include/asm/barebox.h | 24 +
arch/mips/include/asm/bitops.h | 32 +
arch/mips/include/asm/byteorder.h | 30 +
arch/mips/include/asm/common.h | 29 +
arch/mips/include/asm/elf.h | 30 +
arch/mips/include/asm/io.h | 73 ++
arch/mips/include/asm/mipsregs.h | 988 +++++++++++++++++++++++++++
arch/mips/include/asm/module.h | 36 +
arch/mips/include/asm/posix_types.h | 48 ++
arch/mips/include/asm/regdef.h | 100 +++
arch/mips/include/asm/sections.h | 1 +
arch/mips/include/asm/sgidefs.h | 44 ++
arch/mips/include/asm/string.h | 31 +
arch/mips/include/asm/swab.h | 59 ++
arch/mips/include/asm/types.h | 44 ++
arch/mips/include/mach/debug_ll.h | 35 +
arch/mips/lib/.gitignore | 1 +
arch/mips/lib/Makefile | 5 +
arch/mips/lib/ashldi3.c | 27 +
arch/mips/lib/ashrdi3.c | 29 +
arch/mips/lib/barebox.lds.S | 76 ++
arch/mips/lib/libgcc.h | 25 +
arch/mips/lib/lshrdi3.c | 27 +
arch/mips/lib/memory.c | 34 +
arch/mips/mach-mips.dox | 9 +
arch/mips/mach-qemu/Kconfig | 12 +
arch/mips/mach-qemu/Makefile | 4 +
arch/mips/mach-qemu/csrc-r4k.c | 50 ++
arch/mips/mach-qemu/include/mach/hardware.h | 28 +
arch/mips/mach-qemu/reset.c | 34 +
40 files changed, 2692 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/Kconfig
create mode 100644 arch/mips/Makefile
create mode 100644 arch/mips/boards/malta/Makefile
create mode 100644 arch/mips/boards/malta/config.h
create mode 100644 arch/mips/boards/malta/serial.c
create mode 100644 arch/mips/boot/Kconfig
create mode 100644 arch/mips/boot/Makefile
create mode 100644 arch/mips/boot/entry.c
create mode 100644 arch/mips/boot/head.S
create mode 100644 arch/mips/configs/malta_defconfig
create mode 100644 arch/mips/include/asm/barebox.h
create mode 100644 arch/mips/include/asm/bitops.h
create mode 100644 arch/mips/include/asm/byteorder.h
create mode 100644 arch/mips/include/asm/common.h
create mode 100644 arch/mips/include/asm/elf.h
create mode 100644 arch/mips/include/asm/io.h
create mode 100644 arch/mips/include/asm/mipsregs.h
create mode 100644 arch/mips/include/asm/module.h
create mode 100644 arch/mips/include/asm/posix_types.h
create mode 100644 arch/mips/include/asm/regdef.h
create mode 100644 arch/mips/include/asm/sections.h
create mode 100644 arch/mips/include/asm/sgidefs.h
create mode 100644 arch/mips/include/asm/string.h
create mode 100644 arch/mips/include/asm/swab.h
create mode 100644 arch/mips/include/asm/types.h
create mode 100644 arch/mips/include/mach/debug_ll.h
create mode 100644 arch/mips/lib/.gitignore
create mode 100644 arch/mips/lib/Makefile
create mode 100644 arch/mips/lib/ashldi3.c
create mode 100644 arch/mips/lib/ashrdi3.c
create mode 100644 arch/mips/lib/barebox.lds.S
create mode 100644 arch/mips/lib/libgcc.h
create mode 100644 arch/mips/lib/lshrdi3.c
create mode 100644 arch/mips/lib/memory.c
create mode 100644 arch/mips/mach-mips.dox
create mode 100644 arch/mips/mach-qemu/Kconfig
create mode 100644 arch/mips/mach-qemu/Makefile
create mode 100644 arch/mips/mach-qemu/csrc-r4k.c
create mode 100644 arch/mips/mach-qemu/include/mach/hardware.h
create mode 100644 arch/mips/mach-qemu/reset.c
diff --git a/arch/architecture.dox b/arch/architecture.dox
index 67e2c38..2d2cf05 100644
--- a/arch/architecture.dox
+++ b/arch/architecture.dox
@@ -86,6 +86,7 @@ TODO
@li @subpage dev_arm_mach
@li @subpage dev_bf_mach
+@li @subpage dev_mips_mach
@li @subpage dev_ppc_mach
@li @subpage dev_x86_mach
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
new file mode 100644
index 0000000..10c0fbb
--- /dev/null
+++ b/arch/mips/Kconfig
@@ -0,0 +1,55 @@
+#
+#
+#
+config BOARD_LINKER_SCRIPT
+ bool
+ default n
+
+config GENERIC_LINKER_SCRIPT
+ bool
+ default y
+ depends on !BOARD_LINKER_SCRIPT
+
+config MIPS
+ bool
+ select HAS_KALLSYMS
+ default y
+
+choice
+ prompt "MIPS system type"
+
+config ARCH_MIPS_QEMU
+ bool "qemu"
+
+endchoice
+
+choice
+ prompt "Select your board"
+
+config MACH_MIPS_MALTA
+ bool "malta"
+ select MIPS_MALTA
+
+endchoice
+
+source arch/mips/mach-qemu/Kconfig
+
+choice
+ prompt "Bring up type"
+
+ config MIPS_NATIVE_BRINGUP
+ bool "native"
+ help
+ Barebox will act as a native bootloader. This includes all the
+ required initialization needed to bring up a piece of hardware.
+
+endchoice
+
+source arch/mips/boot/Kconfig
+
+source common/Kconfig
+source commands/Kconfig
+source net/Kconfig
+source drivers/Kconfig
+source fs/Kconfig
+source lib/Kconfig
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
new file mode 100644
index 0000000..60d88e5
--- /dev/null
+++ b/arch/mips/Makefile
@@ -0,0 +1,51 @@
+CPPFLAGS += -D__MIPS__ -fno-strict-aliasing -fno-merge-constants
+
+CPPFLAGS += -march=mips64 -P -EB -mno-abicalls
+CPPFLAGS += -Wall -Wmissing-prototypes -Wstrict-prototypes \
+ -Wno-uninitialized -Wno-format -Wno-main
+#CPPFLAGS += -save-temps
+
+ifndef CONFIG_MODULES
+# Add cleanup flags
+CPPFLAGS += -fdata-sections -ffunction-sections
+LDFLAGS_uboot += -static --gc-sections
+endif
+
+machine-$(CONFIG_ARCH_MIPS_QEMU) := qemu
+board-$(CONFIG_MACH_MIPS_MALTA) := malta
+
+machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y))
+
+ifeq ($(KBUILD_SRC),)
+CPPFLAGS += $(patsubst %,-I%include,$(machdirs))
+else
+CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
+endif
+
+ifeq ($(incdir-y),)
+incdir-y := $(machine-y)
+endif
+INCDIR := arch-$(incdir-y)
+
+all: $(KBUILD_IMAGE)
+
+ifneq ($(board-y),)
+BOARD := arch/mips/boards/$(board-y)/
+else
+BOARD :=
+endif
+
+ifneq ($(machine-y),)
+MACH := arch/mips/mach-$(machine-y)/
+else
+MACH :=
+endif
+
+common-y += $(BOARD) $(MACH)
+common-y += arch/mips/lib/
+common-y += arch/mips/boot/
+
+lds-$(CONFIG_GENERIC_LINKER_SCRIPT) := arch/mips/lib/barebox.lds
+lds-$(CONFIG_BOARD_LINKER_SCRIPT) := $(BOARD)/barebox.lds
+
+CLEAN_FILES += arch/mips/lib/barebox.lds barebox.map barebox.S
diff --git a/arch/mips/boards/malta/Makefile b/arch/mips/boards/malta/Makefile
new file mode 100644
index 0000000..31c0629
--- /dev/null
+++ b/arch/mips/boards/malta/Makefile
@@ -0,0 +1 @@
+obj-y += serial.o
diff --git a/arch/mips/boards/malta/config.h b/arch/mips/boards/malta/config.h
new file mode 100644
index 0000000..eb4ab08
--- /dev/null
+++ b/arch/mips/boards/malta/config.h
@@ -0,0 +1,19 @@
+/*
+ * 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
+ *
+ */
+
+/* nothing special yet */
diff --git a/arch/mips/boards/malta/serial.c b/arch/mips/boards/malta/serial.c
new file mode 100644
index 0000000..b3ade0c
--- /dev/null
+++ b/arch/mips/boards/malta/serial.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * 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 <types.h>
+#include <driver.h>
+#include <init.h>
+#include <ns16550.h>
+#include <mach/hardware.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_DRIVER_SERIAL_NS16550
+/** to work with the 8250 UART driver implementation we need this function */
+unsigned int malta_uart_read(unsigned long base, unsigned char reg_idx)
+{
+ return readb(base + reg_idx);
+}
+
+/** to work with the 8250 UART driver implementation we need this function */
+void malta_uart_write(unsigned int val, unsigned long base, unsigned char reg_idx)
+{
+ writeb(val, base + reg_idx);
+}
+
+static struct NS16550_plat serial_plat = {
+ .clock = 1843200, /* no matter */
+ .f_caps = CONSOLE_STDIN | CONSOLE_STDOUT | CONSOLE_STDERR,
+ .reg_read = malta_uart_read,
+ .reg_write = malta_uart_write,
+};
+
+/* we are expecting always one serial interface */
+static struct device_d generic_malta_serial_device = {
+ .name = "serial_ns16550",
+ .map_base = DEBUG_LL_UART_ADDR,
+ .size = 8,
+ .platform_data = (void *)&serial_plat,
+};
+
+static int malta_console_init(void)
+{
+ /* Register the serial port */
+ return register_device(&generic_malta_serial_device);
+}
+console_initcall(malta_console_init);
+
+#endif
diff --git a/arch/mips/boot/Kconfig b/arch/mips/boot/Kconfig
new file mode 100644
index 0000000..e69de29
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
new file mode 100644
index 0000000..fd7a745
--- /dev/null
+++ b/arch/mips/boot/Makefile
@@ -0,0 +1,4 @@
+CPPFLAGS += -D__MIPS__ -fno-strict-aliasing -g -O0 -march=mips64
+
+obj-y += head.o
+obj-y += entry.o
diff --git a/arch/mips/boot/entry.c b/arch/mips/boot/entry.c
new file mode 100644
index 0000000..98d954e
--- /dev/null
+++ b/arch/mips/boot/entry.c
@@ -0,0 +1,80 @@
+/*
+ * (C) Copyright 2000-2006
+ * 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 <debug_ll.h>
+#include <common.h>
+#include <init.h>
+#include <asm-generic/memory_layout.h>
+
+#include <asm/io.h>
+
+#include <string.h>
+
+/* These symbols are generated by the linker */
+extern long __bss_start;
+extern long __bss_end;
+
+extern void start_barebox(void);
+
+/************************************************************************
+ *
+ * This is the first part of the initialization sequence: we are now
+ * running from ROM.
+ *
+ ************************************************************************
+ */
+
+void board_init_in_rom(void *rom, void *ram)
+{
+ int i;
+ int * a, *b;
+#define ROM_SIZE 512 * 1024
+
+ a = rom;
+ b = ram;
+
+ for (i = ROM_SIZE; i > 0; i-=sizeof(int)) {
+ *b = *a;
+ a++;
+ b++;
+ }
+}
+
+/************************************************************************
+ *
+ * This is the next part if the initialization sequence: we are now
+ * running from RAM and have a "normal" C environment, i. e. global
+ * data can be written, BSS has been cleared, the stack size in not
+ * that critical any more, etc.
+ *
+ ************************************************************************
+ */
+
+void board_init_in_ram()
+{
+ /* clear the BSS first */
+ memset(&__bss_start, 0x00, &__bss_end - &__bss_start);
+
+ /* Initialization complete - start the monitor */
+ start_barebox();
+}
diff --git a/arch/mips/boot/head.S b/arch/mips/boot/head.S
new file mode 100644
index 0000000..f5712b8
--- /dev/null
+++ b/arch/mips/boot/head.S
@@ -0,0 +1,233 @@
+/*
+ * Startup Code for MIPS32 CPU-core
+ *
+ * Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
+ * Further modifications by Antony Pavlov
+ *
+ * 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/regdef.h>
+#include <asm/mipsregs.h>
+
+#define RVECENT(f,n) \
+ b f; \
+ nop
+#define XVECENT(f,bev) \
+ b f; \
+ li k0,bev
+
+ .set noreorder
+ .text
+ .section ".text_bare_init"
+ .globl _start
+
+_start:
+ RVECENT(reset,0) /* U-boot entry point */
+ RVECENT(reset,1) /* software reboot */
+ RVECENT(romReserved,2)
+ RVECENT(romReserved,3)
+ RVECENT(romReserved,4)
+ RVECENT(romReserved,5)
+ RVECENT(romReserved,6)
+ RVECENT(romReserved,7)
+ RVECENT(romReserved,8)
+ RVECENT(romReserved,9)
+ RVECENT(romReserved,10)
+ RVECENT(romReserved,11)
+ RVECENT(romReserved,12)
+ RVECENT(romReserved,13)
+ RVECENT(romReserved,14)
+ RVECENT(romReserved,15)
+ RVECENT(romReserved,16)
+ RVECENT(romReserved,17)
+ RVECENT(romReserved,18)
+ RVECENT(romReserved,19)
+ RVECENT(romReserved,20)
+ RVECENT(romReserved,21)
+ RVECENT(romReserved,22)
+ RVECENT(romReserved,23)
+ RVECENT(romReserved,24)
+ RVECENT(romReserved,25)
+ RVECENT(romReserved,26)
+ RVECENT(romReserved,27)
+ RVECENT(romReserved,28)
+ RVECENT(romReserved,29)
+ RVECENT(romReserved,30)
+ RVECENT(romReserved,31)
+ RVECENT(romReserved,32)
+ RVECENT(romReserved,33)
+ RVECENT(romReserved,34)
+ RVECENT(romReserved,35)
+ RVECENT(romReserved,36)
+ RVECENT(romReserved,37)
+ RVECENT(romReserved,38)
+ RVECENT(romReserved,39)
+ RVECENT(romReserved,40)
+ RVECENT(romReserved,41)
+ RVECENT(romReserved,42)
+ RVECENT(romReserved,43)
+ RVECENT(romReserved,44)
+ RVECENT(romReserved,45)
+ RVECENT(romReserved,46)
+ RVECENT(romReserved,47)
+ RVECENT(romReserved,48)
+ RVECENT(romReserved,49)
+ RVECENT(romReserved,50)
+ RVECENT(romReserved,51)
+ RVECENT(romReserved,52)
+ RVECENT(romReserved,53)
+ RVECENT(romReserved,54)
+ RVECENT(romReserved,55)
+ RVECENT(romReserved,56)
+ RVECENT(romReserved,57)
+ RVECENT(romReserved,58)
+ RVECENT(romReserved,59)
+ RVECENT(romReserved,60)
+ RVECENT(romReserved,61)
+ RVECENT(romReserved,62)
+ RVECENT(romReserved,63)
+ XVECENT(romExcHandle,0x200) /* bfc00200: R4000 tlbmiss vector */
+ RVECENT(romReserved,65)
+ RVECENT(romReserved,66)
+ RVECENT(romReserved,67)
+ RVECENT(romReserved,68)
+ RVECENT(romReserved,69)
+ RVECENT(romReserved,70)
+ RVECENT(romReserved,71)
+ RVECENT(romReserved,72)
+ RVECENT(romReserved,73)
+ RVECENT(romReserved,74)
+ RVECENT(romReserved,75)
+ RVECENT(romReserved,76)
+ RVECENT(romReserved,77)
+ RVECENT(romReserved,78)
+ RVECENT(romReserved,79)
+ XVECENT(romExcHandle,0x280) /* bfc00280: R4000 xtlbmiss vector */
+ RVECENT(romReserved,81)
+ RVECENT(romReserved,82)
+ RVECENT(romReserved,83)
+ RVECENT(romReserved,84)
+ RVECENT(romReserved,85)
+ RVECENT(romReserved,86)
+ RVECENT(romReserved,87)
+ RVECENT(romReserved,88)
+ RVECENT(romReserved,89)
+ RVECENT(romReserved,90)
+ RVECENT(romReserved,91)
+ RVECENT(romReserved,92)
+ RVECENT(romReserved,93)
+ RVECENT(romReserved,94)
+ RVECENT(romReserved,95)
+ XVECENT(romExcHandle,0x300) /* bfc00300: R4000 cache vector */
+ RVECENT(romReserved,97)
+ RVECENT(romReserved,98)
+ RVECENT(romReserved,99)
+ RVECENT(romReserved,100)
+ RVECENT(romReserved,101)
+ RVECENT(romReserved,102)
+ RVECENT(romReserved,103)
+ RVECENT(romReserved,104)
+ RVECENT(romReserved,105)
+ RVECENT(romReserved,106)
+ RVECENT(romReserved,107)
+ RVECENT(romReserved,108)
+ RVECENT(romReserved,109)
+ RVECENT(romReserved,110)
+ RVECENT(romReserved,111)
+ XVECENT(romExcHandle,0x380) /* bfc00380: R4000 general vector */
+ RVECENT(romReserved,113)
+ RVECENT(romReserved,114)
+ RVECENT(romReserved,115)
+ RVECENT(romReserved,116)
+ RVECENT(romReserved,116)
+ RVECENT(romReserved,118)
+ RVECENT(romReserved,119)
+ RVECENT(romReserved,120)
+ RVECENT(romReserved,121)
+ RVECENT(romReserved,122)
+ RVECENT(romReserved,123)
+ RVECENT(romReserved,124)
+ RVECENT(romReserved,125)
+ RVECENT(romReserved,126)
+ RVECENT(romReserved,127)
+
+ /* We hope there are no more reserved vectors!
+ * 128 * 8 == 1024 == 0x400
+ * so this is address R_VEC+0x400 == 0xbfc00400
+ */
+
+ .align 4
+reset:
+ /* Clear watch registers */
+ mtc0 zero, CP0_WATCHLO
+ mtc0 zero, CP0_WATCHHI
+
+ /* STATUS register */
+ mfc0 k0, CP0_STATUS
+ li k1, ~ST0_IE
+ and k0, k1
+ mtc0 k0, CP0_STATUS
+
+ /* CAUSE register */
+ mtc0 zero, CP0_CAUSE
+
+ /* Init Timer */
+ mtc0 zero, CP0_COUNT
+ mtc0 zero, CP0_COMPARE
+
+ /* CONFIG0 register */
+ li t0, CONF_CM_UNCACHED
+ mtc0 t0, CP0_CONFIG
+
+ /* Init stack */
+ .globl stack
+ stack = _start - CONFIG_STACK_SIZE
+
+ la sp, stack /* Set new stack pointer */
+
+ /* Compute link - load offset */
+ bal compute_offset /* Get current execute address */
+ nop
+
+compute_offset:
+ la s0, _start /* RA set from BAL above! */
+ subu s0, ra, s0 /* s0 = link - load offset */
+ and s0, 0xffff0000 /* Mask off lower bits */
+
+ la a1, _start /* RAM start address */
+ la v0, board_init_in_rom
+ addu v0, s0 /* Compute ROM address of 'board_init_in_rom' */
+
+ /* call board_init_in_rom; it will copy image to RAM */
+ jal v0
+ add a0, a1, s0 /* ROM start address */
+
+ /* call board_init_in_ram from RAM location */
+ la v0, board_init_in_ram
+ jal v0
+ nop
+ /* No return */
+
+ /* Exception handlers */
+romReserved:
+ b romReserved
+
+romExcHandle:
+ b romExcHandle
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
new file mode 100644
index 0000000..9f9dcac
--- /dev/null
+++ b/arch/mips/configs/malta_defconfig
@@ -0,0 +1,219 @@
+#
+# Automatically generated make config: don't edit
+# Linux/mips 2011.06.0 Barebox Configuration
+# Sun Jun 26 16:09:29 2011
+#
+# CONFIG_BOARD_LINKER_SCRIPT is not set
+CONFIG_GENERIC_LINKER_SCRIPT=y
+CONFIG_MIPS=y
+CONFIG_ARCH_MIPS_QEMU=y
+CONFIG_MACH_MIPS_MALTA=y
+
+#
+# Board specific settings
+#
+CONFIG_BOARDINFO="qemu malta"
+# CONFIG_DEBUG_LL is not set
+CONFIG_MIPS_NATIVE_BRINGUP=y
+CONFIG_DEFCONFIG_LIST="$ARCH_DEFCONFIG"
+CONFIG_GREGORIAN_CALENDER=y
+CONFIG_HAS_KALLSYMS=y
+CONFIG_CMD_MEMORY=y
+CONFIG_ENV_HANDLING=y
+
+#
+# General Settings
+#
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_ENVIRONMENT_VARIABLES=y
+
+#
+# memory layout
+#
+CONFIG_STACK_SIZE=0x7000
+CONFIG_MALLOC_SIZE=0x400000
+CONFIG_BROKEN=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_MALLOC_DLMALLOC=y
+# CONFIG_KALLSYMS is not set
+CONFIG_PROMPT="uboot:"
+CONFIG_BAUDRATE=115200
+CONFIG_LONGHELP=y
+CONFIG_CBSIZE=1024
+CONFIG_MAXARGS=16
+CONFIG_SHELL_HUSH=y
+# CONFIG_SHELL_SIMPLE is not set
+# CONFIG_GLOB is not set
+CONFIG_PROMPT_HUSH_PS2="> "
+CONFIG_HUSH_FANCY_PROMPT=y
+CONFIG_HUSH_GETOPT=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_MENU=y
+CONFIG_PASSWORD=y
+CONFIG_PASSWD_SUM_MD5=y
+# CONFIG_PASSWD_SUM_SHA1 is not set
+# CONFIG_PASSWD_SUM_SHA256 is not set
+CONFIG_DYNAMIC_CRC_TABLE=y
+CONFIG_ERRNO_MESSAGES=y
+CONFIG_TIMESTAMP=y
+CONFIG_CONSOLE_FULL=y
+CONFIG_CONSOLE_ACTIVATE_FIRST=y
+# CONFIG_OF_FLAT_TREE is not set
+CONFIG_PARTITION=y
+# CONFIG_DEFAULT_ENVIRONMENT is not set
+CONFIG_POLLER=y
+
+#
+# Debugging
+#
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_FLASH_NOISE is not set
+# CONFIG_ENABLE_PARTITION_NOISE is not set
+# CONFIG_ENABLE_DEVICE_NOISE is not set
+CONFIG_COMMAND_SUPPORT=y
+
+#
+# commands
+#
+
+#
+# scripting
+#
+CONFIG_CMD_EDIT=y
+CONFIG_CMD_SLEEP=y
+CONFIG_CMD_SAVEENV=y
+CONFIG_CMD_LOADENV=y
+CONFIG_CMD_EXPORT=y
+CONFIG_CMD_PRINTENV=y
+CONFIG_CMD_READLINE=y
+CONFIG_CMD_TRUE=y
+CONFIG_CMD_FALSE=y
+CONFIG_CMD_MENU=y
+CONFIG_CMD_MENU_MANAGEMENT=y
+# CONFIG_CMD_LOGIN is not set
+# CONFIG_CMD_PASSWD is not set
+
+#
+# file commands
+#
+CONFIG_CMD_LS=y
+CONFIG_CMD_RM=y
+CONFIG_CMD_CAT=y
+CONFIG_CMD_MKDIR=y
+CONFIG_CMD_RMDIR=y
+CONFIG_CMD_CP=y
+CONFIG_CMD_PWD=y
+CONFIG_CMD_CD=y
+CONFIG_CMD_MOUNT=y
+CONFIG_CMD_UMOUNT=y
+
+#
+# console
+#
+CONFIG_CMD_CLEAR=y
+CONFIG_CMD_ECHO=y
+CONFIG_CMD_ECHO_E=y
+
+#
+# memory
+#
+CONFIG_CMD_LOADB=y
+# CONFIG_CMD_LOADY is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_CRC=y
+CONFIG_CMD_CRC_CMP=y
+CONFIG_CMD_DIGEST=y
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_SHA1SUM=y
+CONFIG_CMD_SHA256SUM=y
+CONFIG_CMD_MTEST=y
+# CONFIG_CMD_MTEST_ALTERNATIVE is not set
+
+#
+# flash
+#
+CONFIG_CMD_FLASH=y
+# CONFIG_CMD_UBI is not set
+
+#
+# booting
+#
+CONFIG_CMD_BOOTM=y
+# CONFIG_CMD_BOOTM_ZLIB is not set
+# CONFIG_CMD_BOOTM_BZLIB is not set
+# CONFIG_CMD_BOOTM_SHOW_TYPE is not set
+# CONFIG_CMD_RESET is not set
+CONFIG_CMD_GO=y
+CONFIG_CMD_TIMEOUT=y
+CONFIG_CMD_PARTITION=y
+CONFIG_CMD_TEST=y
+CONFIG_CMD_VERSION=y
+CONFIG_CMD_HELP=y
+CONFIG_CMD_DEVINFO=y
+# CONFIG_CMD_UNLZO is not set
+CONFIG_NET=y
+CONFIG_NET_DHCP=y
+# CONFIG_NET_NFS is not set
+CONFIG_NET_PING=y
+CONFIG_NET_TFTP=y
+# CONFIG_NET_TFTP_PUSH is not set
+CONFIG_NET_NETCONSOLE=y
+# CONFIG_NET_RESOLV is not set
+
+#
+# Drivers
+#
+
+#
+# serial drivers
+#
+CONFIG_DRIVER_SERIAL_NS16550=y
+
+#
+# Network drivers
+#
+# CONFIG_DRIVER_NET_SMC911X is not set
+# CONFIG_DRIVER_NET_SMC91111 is not set
+
+#
+# SPI drivers
+#
+# CONFIG_SPI is not set
+# CONFIG_I2C is not set
+
+#
+# flash drivers
+#
+# CONFIG_DRIVER_CFI is not set
+CONFIG_MTD=y
+# CONFIG_NAND is not set
+# CONFIG_UBI is not set
+# CONFIG_ATA is not set
+# CONFIG_USB is not set
+# CONFIG_USB_GADGET is not set
+# CONFIG_VIDEO is not set
+# CONFIG_MCI is not set
+
+#
+# MFD
+#
+# CONFIG_LED is not set
+
+#
+# Filesystem support
+#
+CONFIG_FS_CRAMFS=y
+CONFIG_FS_RAMFS=y
+CONFIG_FS_DEVFS=y
+# CONFIG_FS_FAT is not set
+CONFIG_ZLIB=y
+CONFIG_CRC32=y
+CONFIG_CRC16=y
+CONFIG_DIGEST=y
+CONFIG_MD5=y
+CONFIG_SHA1=y
+CONFIG_SHA256=y
+# CONFIG_GENERIC_FIND_NEXT_BIT is not set
+CONFIG_PROCESS_ESCAPE_SEQUENCE=y
diff --git a/arch/mips/include/asm/barebox.h b/arch/mips/include/asm/barebox.h
new file mode 100644
index 0000000..b42c9ff
--- /dev/null
+++ b/arch/mips/include/asm/barebox.h
@@ -0,0 +1,24 @@
+/*
+ * 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
+ *
+ */
+
+#ifndef _ASM_MIPS_BAREBOX_H_
+#define _ASM_MIPS_BAREBOX_H_
+
+/* nothing special yet */
+
+#endif /* _ASM_MIPS_BAREBOX_H_ */
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
new file mode 100644
index 0000000..36d34b6
--- /dev/null
+++ b/arch/mips/include/asm/bitops.h
@@ -0,0 +1,32 @@
+/*
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief mips bit operations
+ *
+ * This file is required only to make all sources happy including
+ * 'linux/bitops.h'
+ */
+
+#ifndef _ASM_MIPS_BITOPS_H_
+#define _ASM_MIPS_BITOPS_H_
+
+/* nothing special yet */
+
+#endif /* _ASM_MIPS_BITOPS_H_ */
diff --git a/arch/mips/include/asm/byteorder.h b/arch/mips/include/asm/byteorder.h
new file mode 100644
index 0000000..5fcdd9f
--- /dev/null
+++ b/arch/mips/include/asm/byteorder.h
@@ -0,0 +1,30 @@
+/*
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief mips endianess declaration
+ */
+
+#ifndef __ASM_MIPS_BYTEORDER_H
+#define __ASM_MIPS_BYTEORDER_H
+
+#include <asm/types.h>
+#include <linux/byteorder/big_endian.h>
+
+#endif
diff --git a/arch/mips/include/asm/common.h b/arch/mips/include/asm/common.h
new file mode 100644
index 0000000..8b21157
--- /dev/null
+++ b/arch/mips/include/asm/common.h
@@ -0,0 +1,29 @@
+/*
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief mips common declarations
+ */
+
+#ifndef _ASM_MIPS_COMMON_H_
+#define _ASM_MIPS_COMMON_H_
+
+/* Nothing exiting yet */
+
+#endif /* _ASM_MIPS_COMMON_H_ */
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
new file mode 100644
index 0000000..d88863d
--- /dev/null
+++ b/arch/mips/include/asm/elf.h
@@ -0,0 +1,30 @@
+/*
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief mips specific elf information
+ *
+ */
+
+#ifndef _ASM_MIPS_ELF_H
+#define _ASM_MIPS_ELF_H
+
+#define ELF_CLASS ELFCLASS32
+
+#endif /* _ASM_MIPS_ELF_H */
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
new file mode 100644
index 0000000..f4b0a2b
--- /dev/null
+++ b/arch/mips/include/asm/io.h
@@ -0,0 +1,73 @@
+/*
+ * Stolen from the linux-2.6/include/asm-generic/io.h
+ */
+
+/**
+ * @file
+ * @brief mips IO access functions
+ */
+
+#ifndef __ASM_MIPS_IO_H
+#define __ASM_MIPS_IO_H
+
+#include <linux/compiler.h>
+#include <asm/types.h>
+
+/*****************************************************************************/
+/*
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently. On the simple architectures, we just read/write the
+ * memory location directly.
+ */
+#ifndef __raw_readb
+static inline u8 __raw_readb(const volatile void __iomem *addr)
+{
+ return *(const volatile u8 __force *) addr;
+}
+#endif
+
+#ifndef __raw_readw
+static inline u16 __raw_readw(const volatile void __iomem *addr)
+{
+ return *(const volatile u16 __force *) addr;
+}
+#endif
+
+#ifndef __raw_readl
+static inline u32 __raw_readl(const volatile void __iomem *addr)
+{
+ return *(const volatile u32 __force *) addr;
+}
+#endif
+
+#define readb __raw_readb
+#define readw(addr) __le16_to_cpu(__raw_readw(addr))
+#define readl(addr) __le32_to_cpu(__raw_readl(addr))
+
+#ifndef __raw_writeb
+static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
+{
+ *(volatile u8 __force *) addr = b;
+}
+#endif
+
+#ifndef __raw_writew
+static inline void __raw_writew(u16 b, volatile void __iomem *addr)
+{
+ *(volatile u16 __force *) addr = b;
+}
+#endif
+
+#ifndef __raw_writel
+static inline void __raw_writel(u32 b, volatile void __iomem *addr)
+{
+ *(volatile u32 __force *) addr = b;
+}
+#endif
+
+#define writeb __raw_writeb
+#define writew(b,addr) __raw_writew(__cpu_to_le16(b),addr)
+#define writel(b,addr) __raw_writel(__cpu_to_le32(b),addr)
+
+#endif /* __ASM_MIPS_IO_H */
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
new file mode 100644
index 0000000..f3d1ae2
--- /dev/null
+++ b/arch/mips/include/asm/mipsregs.h
@@ -0,0 +1,988 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle
+ * Copyright (C) 2000 Silicon Graphics, Inc.
+ * Modified for further R[236]000 support by Paul M. Antoine, 1996.
+ * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000, 07 MIPS Technologies, Inc.
+ * Copyright (C) 2003, 2004 Maciej W. Rozycki
+ */
+#ifndef _ASM_MIPSREGS_H
+#define _ASM_MIPSREGS_H
+
+/*
+ * The following macros are especially useful for __asm__
+ * inline assembler.
+ */
+#ifndef __STR
+#define __STR(x) #x
+#endif
+#ifndef STR
+#define STR(x) __STR(x)
+#endif
+
+/*
+ * Configure language
+ */
+#ifdef __ASSEMBLY__
+#define _ULCAST_
+#else
+#define _ULCAST_ (unsigned long)
+#endif
+
+/*
+ * Coprocessor 0 register names
+ */
+#define CP0_INDEX $0
+#define CP0_RANDOM $1
+#define CP0_ENTRYLO0 $2
+#define CP0_ENTRYLO1 $3
+#define CP0_CONF $3
+#define CP0_CONTEXT $4
+#define CP0_PAGEMASK $5
+#define CP0_WIRED $6
+#define CP0_INFO $7
+#define CP0_BADVADDR $8
+#define CP0_COUNT $9
+#define CP0_ENTRYHI $10
+#define CP0_COMPARE $11
+#define CP0_STATUS $12
+#define CP0_CAUSE $13
+#define CP0_EPC $14
+#define CP0_PRID $15
+#define CP0_CONFIG $16
+#define CP0_LLADDR $17
+#define CP0_WATCHLO $18
+#define CP0_WATCHHI $19
+#define CP0_XCONTEXT $20
+#define CP0_FRAMEMASK $21
+#define CP0_DIAGNOSTIC $22
+#define CP0_DEBUG $23
+#define CP0_DEPC $24
+#define CP0_PERFORMANCE $25
+#define CP0_ECC $26
+#define CP0_CACHEERR $27
+#define CP0_TAGLO $28
+#define CP0_TAGHI $29
+#define CP0_ERROREPC $30
+#define CP0_DESAVE $31
+
+/*
+ * R4640/R4650 cp0 register names. These registers are listed
+ * here only for completeness; without MMU these CPUs are not useable
+ * by Linux. A future ELKS port might take make Linux run on them
+ * though ...
+ */
+#define CP0_IBASE $0
+#define CP0_IBOUND $1
+#define CP0_DBASE $2
+#define CP0_DBOUND $3
+#define CP0_CALG $17
+#define CP0_IWATCH $18
+#define CP0_DWATCH $19
+
+/*
+ * Coprocessor 0 Set 1 register names
+ */
+#define CP0_S1_DERRADDR0 $26
+#define CP0_S1_DERRADDR1 $27
+#define CP0_S1_INTCONTROL $20
+
+/*
+ * Coprocessor 0 Set 2 register names
+ */
+#define CP0_S2_SRSCTL $12 /* MIPSR2 */
+
+/*
+ * Coprocessor 0 Set 3 register names
+ */
+#define CP0_S3_SRSMAP $12 /* MIPSR2 */
+
+/*
+ * TX39 Series
+ */
+#define CP0_TX39_CACHE $7
+
+/*
+ * Coprocessor 1 (FPU) register names
+ */
+#define CP1_REVISION $0
+#define CP1_STATUS $31
+
+/*
+ * FPU Status Register Values
+ */
+/*
+ * Status Register Values
+ */
+
+#define FPU_CSR_FLUSH 0x01000000 /* flush denormalised results to 0 */
+#define FPU_CSR_COND 0x00800000 /* $fcc0 */
+#define FPU_CSR_COND0 0x00800000 /* $fcc0 */
+#define FPU_CSR_COND1 0x02000000 /* $fcc1 */
+#define FPU_CSR_COND2 0x04000000 /* $fcc2 */
+#define FPU_CSR_COND3 0x08000000 /* $fcc3 */
+#define FPU_CSR_COND4 0x10000000 /* $fcc4 */
+#define FPU_CSR_COND5 0x20000000 /* $fcc5 */
+#define FPU_CSR_COND6 0x40000000 /* $fcc6 */
+#define FPU_CSR_COND7 0x80000000 /* $fcc7 */
+
+/*
+ * Bits 18 - 20 of the FPU Status Register will be read as 0,
+ * and should be written as zero.
+ */
+#define FPU_CSR_RSVD 0x001c0000
+
+/*
+ * X the exception cause indicator
+ * E the exception enable
+ * S the sticky/flag bit
+*/
+#define FPU_CSR_ALL_X 0x0003f000
+#define FPU_CSR_UNI_X 0x00020000
+#define FPU_CSR_INV_X 0x00010000
+#define FPU_CSR_DIV_X 0x00008000
+#define FPU_CSR_OVF_X 0x00004000
+#define FPU_CSR_UDF_X 0x00002000
+#define FPU_CSR_INE_X 0x00001000
+
+#define FPU_CSR_ALL_E 0x00000f80
+#define FPU_CSR_INV_E 0x00000800
+#define FPU_CSR_DIV_E 0x00000400
+#define FPU_CSR_OVF_E 0x00000200
+#define FPU_CSR_UDF_E 0x00000100
+#define FPU_CSR_INE_E 0x00000080
+
+#define FPU_CSR_ALL_S 0x0000007c
+#define FPU_CSR_INV_S 0x00000040
+#define FPU_CSR_DIV_S 0x00000020
+#define FPU_CSR_OVF_S 0x00000010
+#define FPU_CSR_UDF_S 0x00000008
+#define FPU_CSR_INE_S 0x00000004
+
+/* Bits 0 and 1 of FPU Status Register specify the rounding mode */
+#define FPU_CSR_RM 0x00000003
+#define FPU_CSR_RN 0x0 /* nearest */
+#define FPU_CSR_RZ 0x1 /* towards zero */
+#define FPU_CSR_RU 0x2 /* towards +Infinity */
+#define FPU_CSR_RD 0x3 /* towards -Infinity */
+
+/*
+ * Values for PageMask register
+ */
+#ifdef CONFIG_CPU_VR41XX
+
+/* Why doesn't stupidity hurt ... */
+
+#define PM_1K 0x00000000
+#define PM_4K 0x00001800
+#define PM_16K 0x00007800
+#define PM_64K 0x0001f800
+#define PM_256K 0x0007f800
+
+#else
+
+#define PM_4K 0x00000000
+#define PM_8K 0x00002000
+#define PM_16K 0x00006000
+#define PM_32K 0x0000e000
+#define PM_64K 0x0001e000
+#define PM_128K 0x0003e000
+#define PM_256K 0x0007e000
+#define PM_512K 0x000fe000
+#define PM_1M 0x001fe000
+#define PM_2M 0x003fe000
+#define PM_4M 0x007fe000
+#define PM_8M 0x00ffe000
+#define PM_16M 0x01ffe000
+#define PM_32M 0x03ffe000
+#define PM_64M 0x07ffe000
+#define PM_256M 0x1fffe000
+#define PM_1G 0x7fffe000
+
+#endif
+
+/*
+ * Bitfields in the R4xx0 cp0 status register
+ */
+#define ST0_IE 0x00000001
+#define ST0_EXL 0x00000002
+#define ST0_ERL 0x00000004
+#define ST0_KSU 0x00000018
+# define KSU_USER 0x00000010
+# define KSU_SUPERVISOR 0x00000008
+# define KSU_KERNEL 0x00000000
+#define ST0_UX 0x00000020
+#define ST0_SX 0x00000040
+#define ST0_KX 0x00000080
+#define ST0_DE 0x00010000
+#define ST0_CE 0x00020000
+
+/*
+ * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
+ * cacheops in userspace. This bit exists only on RM7000 and RM9000
+ * processors.
+ */
+#define ST0_CO 0x08000000
+
+/*
+ * Bitfields in the R[23]000 cp0 status register.
+ */
+#define ST0_IEC 0x00000001
+#define ST0_KUC 0x00000002
+#define ST0_IEP 0x00000004
+#define ST0_KUP 0x00000008
+#define ST0_IEO 0x00000010
+#define ST0_KUO 0x00000020
+/* bits 6 & 7 are reserved on R[23]000 */
+#define ST0_ISC 0x00010000
+#define ST0_SWC 0x00020000
+#define ST0_CM 0x00080000
+
+/*
+ * Bits specific to the R4640/R4650
+ */
+#define ST0_UM (_ULCAST_(1) << 4)
+#define ST0_IL (_ULCAST_(1) << 23)
+#define ST0_DL (_ULCAST_(1) << 24)
+
+/*
+ * Enable the MIPS MDMX and DSP ASEs
+ */
+#define ST0_MX 0x01000000
+
+/*
+ * Bitfields in the TX39 family CP0 Configuration Register 3
+ */
+#define TX39_CONF_ICS_SHIFT 19
+#define TX39_CONF_ICS_MASK 0x00380000
+#define TX39_CONF_ICS_1KB 0x00000000
+#define TX39_CONF_ICS_2KB 0x00080000
+#define TX39_CONF_ICS_4KB 0x00100000
+#define TX39_CONF_ICS_8KB 0x00180000
+#define TX39_CONF_ICS_16KB 0x00200000
+
+#define TX39_CONF_DCS_SHIFT 16
+#define TX39_CONF_DCS_MASK 0x00070000
+#define TX39_CONF_DCS_1KB 0x00000000
+#define TX39_CONF_DCS_2KB 0x00010000
+#define TX39_CONF_DCS_4KB 0x00020000
+#define TX39_CONF_DCS_8KB 0x00030000
+#define TX39_CONF_DCS_16KB 0x00040000
+
+#define TX39_CONF_CWFON 0x00004000
+#define TX39_CONF_WBON 0x00002000
+#define TX39_CONF_RF_SHIFT 10
+#define TX39_CONF_RF_MASK 0x00000c00
+#define TX39_CONF_DOZE 0x00000200
+#define TX39_CONF_HALT 0x00000100
+#define TX39_CONF_LOCK 0x00000080
+#define TX39_CONF_ICE 0x00000020
+#define TX39_CONF_DCE 0x00000010
+#define TX39_CONF_IRSIZE_SHIFT 2
+#define TX39_CONF_IRSIZE_MASK 0x0000000c
+#define TX39_CONF_DRSIZE_SHIFT 0
+#define TX39_CONF_DRSIZE_MASK 0x00000003
+
+/*
+ * Status register bits available in all MIPS CPUs.
+ */
+#define ST0_IM 0x0000ff00
+#define STATUSB_IP0 8
+#define STATUSF_IP0 (_ULCAST_(1) << 8)
+#define STATUSB_IP1 9
+#define STATUSF_IP1 (_ULCAST_(1) << 9)
+#define STATUSB_IP2 10
+#define STATUSF_IP2 (_ULCAST_(1) << 10)
+#define STATUSB_IP3 11
+#define STATUSF_IP3 (_ULCAST_(1) << 11)
+#define STATUSB_IP4 12
+#define STATUSF_IP4 (_ULCAST_(1) << 12)
+#define STATUSB_IP5 13
+#define STATUSF_IP5 (_ULCAST_(1) << 13)
+#define STATUSB_IP6 14
+#define STATUSF_IP6 (_ULCAST_(1) << 14)
+#define STATUSB_IP7 15
+#define STATUSF_IP7 (_ULCAST_(1) << 15)
+#define STATUSB_IP8 0
+#define STATUSF_IP8 (_ULCAST_(1) << 0)
+#define STATUSB_IP9 1
+#define STATUSF_IP9 (_ULCAST_(1) << 1)
+#define STATUSB_IP10 2
+#define STATUSF_IP10 (_ULCAST_(1) << 2)
+#define STATUSB_IP11 3
+#define STATUSF_IP11 (_ULCAST_(1) << 3)
+#define STATUSB_IP12 4
+#define STATUSF_IP12 (_ULCAST_(1) << 4)
+#define STATUSB_IP13 5
+#define STATUSF_IP13 (_ULCAST_(1) << 5)
+#define STATUSB_IP14 6
+#define STATUSF_IP14 (_ULCAST_(1) << 6)
+#define STATUSB_IP15 7
+#define STATUSF_IP15 (_ULCAST_(1) << 7)
+#define ST0_CH 0x00040000
+#define ST0_NMI 0x00080000
+#define ST0_SR 0x00100000
+#define ST0_TS 0x00200000
+#define ST0_BEV 0x00400000
+#define ST0_RE 0x02000000
+#define ST0_FR 0x04000000
+#define ST0_CU 0xf0000000
+#define ST0_CU0 0x10000000
+#define ST0_CU1 0x20000000
+#define ST0_CU2 0x40000000
+#define ST0_CU3 0x80000000
+#define ST0_XX 0x80000000 /* MIPS IV naming */
+
+/*
+ * Bitfields and bit numbers in the coprocessor 0 IntCtl register. (MIPSR2)
+ *
+ * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
+ */
+#define INTCTLB_IPPCI 26
+#define INTCTLF_IPPCI (_ULCAST_(7) << INTCTLB_IPPCI)
+#define INTCTLB_IPTI 29
+#define INTCTLF_IPTI (_ULCAST_(7) << INTCTLB_IPTI)
+
+/*
+ * Bitfields and bit numbers in the coprocessor 0 cause register.
+ *
+ * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
+ */
+#define CAUSEB_EXCCODE 2
+#define CAUSEF_EXCCODE (_ULCAST_(31) << 2)
+#define CAUSEB_IP 8
+#define CAUSEF_IP (_ULCAST_(255) << 8)
+#define CAUSEB_IP0 8
+#define CAUSEF_IP0 (_ULCAST_(1) << 8)
+#define CAUSEB_IP1 9
+#define CAUSEF_IP1 (_ULCAST_(1) << 9)
+#define CAUSEB_IP2 10
+#define CAUSEF_IP2 (_ULCAST_(1) << 10)
+#define CAUSEB_IP3 11
+#define CAUSEF_IP3 (_ULCAST_(1) << 11)
+#define CAUSEB_IP4 12
+#define CAUSEF_IP4 (_ULCAST_(1) << 12)
+#define CAUSEB_IP5 13
+#define CAUSEF_IP5 (_ULCAST_(1) << 13)
+#define CAUSEB_IP6 14
+#define CAUSEF_IP6 (_ULCAST_(1) << 14)
+#define CAUSEB_IP7 15
+#define CAUSEF_IP7 (_ULCAST_(1) << 15)
+#define CAUSEB_IV 23
+#define CAUSEF_IV (_ULCAST_(1) << 23)
+#define CAUSEB_CE 28
+#define CAUSEF_CE (_ULCAST_(3) << 28)
+#define CAUSEB_TI 30
+#define CAUSEF_TI (_ULCAST_(1) << 30)
+#define CAUSEB_BD 31
+#define CAUSEF_BD (_ULCAST_(1) << 31)
+
+/*
+ * Bits in the coprocessor 0 config register.
+ */
+/* Generic bits. */
+#define CONF_CM_CACHABLE_NO_WA 0
+#define CONF_CM_CACHABLE_WA 1
+#define CONF_CM_UNCACHED 2
+#define CONF_CM_CACHABLE_NONCOHERENT 3
+#define CONF_CM_CACHABLE_CE 4
+#define CONF_CM_CACHABLE_COW 5
+#define CONF_CM_CACHABLE_CUW 6
+#define CONF_CM_CACHABLE_ACCELERATED 7
+#define CONF_CM_CMASK 7
+#define CONF_BE (_ULCAST_(1) << 15)
+
+/* Bits common to various processors. */
+#define CONF_CU (_ULCAST_(1) << 3)
+#define CONF_DB (_ULCAST_(1) << 4)
+#define CONF_IB (_ULCAST_(1) << 5)
+#define CONF_DC (_ULCAST_(7) << 6)
+#define CONF_IC (_ULCAST_(7) << 9)
+#define CONF_EB (_ULCAST_(1) << 13)
+#define CONF_EM (_ULCAST_(1) << 14)
+#define CONF_SM (_ULCAST_(1) << 16)
+#define CONF_SC (_ULCAST_(1) << 17)
+#define CONF_EW (_ULCAST_(3) << 18)
+#define CONF_EP (_ULCAST_(15)<< 24)
+#define CONF_EC (_ULCAST_(7) << 28)
+#define CONF_CM (_ULCAST_(1) << 31)
+
+/* Bits specific to the R4xx0. */
+#define R4K_CONF_SW (_ULCAST_(1) << 20)
+#define R4K_CONF_SS (_ULCAST_(1) << 21)
+#define R4K_CONF_SB (_ULCAST_(3) << 22)
+
+/* Bits specific to the R5000. */
+#define R5K_CONF_SE (_ULCAST_(1) << 12)
+#define R5K_CONF_SS (_ULCAST_(3) << 20)
+
+/* Bits specific to the RM7000. */
+#define RM7K_CONF_SE (_ULCAST_(1) << 3)
+#define RM7K_CONF_TE (_ULCAST_(1) << 12)
+#define RM7K_CONF_CLK (_ULCAST_(1) << 16)
+#define RM7K_CONF_TC (_ULCAST_(1) << 17)
+#define RM7K_CONF_SI (_ULCAST_(3) << 20)
+#define RM7K_CONF_SC (_ULCAST_(1) << 31)
+
+/* Bits specific to the R10000. */
+#define R10K_CONF_DN (_ULCAST_(3) << 3)
+#define R10K_CONF_CT (_ULCAST_(1) << 5)
+#define R10K_CONF_PE (_ULCAST_(1) << 6)
+#define R10K_CONF_PM (_ULCAST_(3) << 7)
+#define R10K_CONF_EC (_ULCAST_(15)<< 9)
+#define R10K_CONF_SB (_ULCAST_(1) << 13)
+#define R10K_CONF_SK (_ULCAST_(1) << 14)
+#define R10K_CONF_SS (_ULCAST_(7) << 16)
+#define R10K_CONF_SC (_ULCAST_(7) << 19)
+#define R10K_CONF_DC (_ULCAST_(7) << 26)
+#define R10K_CONF_IC (_ULCAST_(7) << 29)
+
+/* Bits specific to the VR41xx. */
+#define VR41_CONF_CS (_ULCAST_(1) << 12)
+#define VR41_CONF_P4K (_ULCAST_(1) << 13)
+#define VR41_CONF_BP (_ULCAST_(1) << 16)
+#define VR41_CONF_M16 (_ULCAST_(1) << 20)
+#define VR41_CONF_AD (_ULCAST_(1) << 23)
+
+/* Bits specific to the R30xx. */
+#define R30XX_CONF_FDM (_ULCAST_(1) << 19)
+#define R30XX_CONF_REV (_ULCAST_(1) << 22)
+#define R30XX_CONF_AC (_ULCAST_(1) << 23)
+#define R30XX_CONF_RF (_ULCAST_(1) << 24)
+#define R30XX_CONF_HALT (_ULCAST_(1) << 25)
+#define R30XX_CONF_FPINT (_ULCAST_(7) << 26)
+#define R30XX_CONF_DBR (_ULCAST_(1) << 29)
+#define R30XX_CONF_SB (_ULCAST_(1) << 30)
+#define R30XX_CONF_LOCK (_ULCAST_(1) << 31)
+
+/* Bits specific to the TX49. */
+#define TX49_CONF_DC (_ULCAST_(1) << 16)
+#define TX49_CONF_IC (_ULCAST_(1) << 17) /* conflict with CONF_SC */
+#define TX49_CONF_HALT (_ULCAST_(1) << 18)
+#define TX49_CONF_CWFON (_ULCAST_(1) << 27)
+
+/* Bits specific to the MIPS32/64 PRA. */
+#define MIPS_CONF_MT (_ULCAST_(7) << 7)
+#define MIPS_CONF_AR (_ULCAST_(7) << 10)
+#define MIPS_CONF_AT (_ULCAST_(3) << 13)
+#define MIPS_CONF_M (_ULCAST_(1) << 31)
+
+/*
+ * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above.
+ */
+#define MIPS_CONF1_FP (_ULCAST_(1) << 0)
+#define MIPS_CONF1_EP (_ULCAST_(1) << 1)
+#define MIPS_CONF1_CA (_ULCAST_(1) << 2)
+#define MIPS_CONF1_WR (_ULCAST_(1) << 3)
+#define MIPS_CONF1_PC (_ULCAST_(1) << 4)
+#define MIPS_CONF1_MD (_ULCAST_(1) << 5)
+#define MIPS_CONF1_C2 (_ULCAST_(1) << 6)
+#define MIPS_CONF1_DA (_ULCAST_(7) << 7)
+#define MIPS_CONF1_DL (_ULCAST_(7) << 10)
+#define MIPS_CONF1_DS (_ULCAST_(7) << 13)
+#define MIPS_CONF1_IA (_ULCAST_(7) << 16)
+#define MIPS_CONF1_IL (_ULCAST_(7) << 19)
+#define MIPS_CONF1_IS (_ULCAST_(7) << 22)
+#define MIPS_CONF1_TLBS (_ULCAST_(63)<< 25)
+
+#define MIPS_CONF2_SA (_ULCAST_(15)<< 0)
+#define MIPS_CONF2_SL (_ULCAST_(15)<< 4)
+#define MIPS_CONF2_SS (_ULCAST_(15)<< 8)
+#define MIPS_CONF2_SU (_ULCAST_(15)<< 12)
+#define MIPS_CONF2_TA (_ULCAST_(15)<< 16)
+#define MIPS_CONF2_TL (_ULCAST_(15)<< 20)
+#define MIPS_CONF2_TS (_ULCAST_(15)<< 24)
+#define MIPS_CONF2_TU (_ULCAST_(7) << 28)
+
+#define MIPS_CONF3_TL (_ULCAST_(1) << 0)
+#define MIPS_CONF3_SM (_ULCAST_(1) << 1)
+#define MIPS_CONF3_MT (_ULCAST_(1) << 2)
+#define MIPS_CONF3_SP (_ULCAST_(1) << 4)
+#define MIPS_CONF3_VINT (_ULCAST_(1) << 5)
+#define MIPS_CONF3_VEIC (_ULCAST_(1) << 6)
+#define MIPS_CONF3_LPA (_ULCAST_(1) << 7)
+#define MIPS_CONF3_DSP (_ULCAST_(1) << 10)
+#define MIPS_CONF3_ULRI (_ULCAST_(1) << 13)
+
+#define MIPS_CONF4_MMUSIZEEXT (_ULCAST_(255) << 0)
+#define MIPS_CONF4_MMUEXTDEF (_ULCAST_(3) << 14)
+#define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
+
+#define MIPS_CONF7_WII (_ULCAST_(1) << 31)
+
+#define MIPS_CONF7_RPS (_ULCAST_(1) << 2)
+
+
+/*
+ * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
+ */
+#define MIPS_FPIR_S (_ULCAST_(1) << 16)
+#define MIPS_FPIR_D (_ULCAST_(1) << 17)
+#define MIPS_FPIR_PS (_ULCAST_(1) << 18)
+#define MIPS_FPIR_3D (_ULCAST_(1) << 19)
+#define MIPS_FPIR_W (_ULCAST_(1) << 20)
+#define MIPS_FPIR_L (_ULCAST_(1) << 21)
+#define MIPS_FPIR_F64 (_ULCAST_(1) << 22)
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Macros to access the system control coprocessor
+ */
+
+#define __read_32bit_c0_register(source, sel) \
+({ int __res; \
+ if (sel == 0) \
+ __asm__ __volatile__( \
+ "mfc0\t%0, " #source "\n\t" \
+ : "=r" (__res)); \
+ else \
+ __asm__ __volatile__( \
+ ".set\tmips32\n\t" \
+ "mfc0\t%0, " #source ", " #sel "\n\t" \
+ ".set\tmips0\n\t" \
+ : "=r" (__res)); \
+ __res; \
+})
+
+#define __read_64bit_c0_register(source, sel) \
+({ unsigned long long __res; \
+ if (sizeof(unsigned long) == 4) \
+ __res = __read_64bit_c0_split(source, sel); \
+ else if (sel == 0) \
+ __asm__ __volatile__( \
+ ".set\tmips3\n\t" \
+ "dmfc0\t%0, " #source "\n\t" \
+ ".set\tmips0" \
+ : "=r" (__res)); \
+ else \
+ __asm__ __volatile__( \
+ ".set\tmips64\n\t" \
+ "dmfc0\t%0, " #source ", " #sel "\n\t" \
+ ".set\tmips0" \
+ : "=r" (__res)); \
+ __res; \
+})
+
+#define __write_32bit_c0_register(register, sel, value) \
+do { \
+ if (sel == 0) \
+ __asm__ __volatile__( \
+ "mtc0\t%z0, " #register "\n\t" \
+ : : "Jr" ((unsigned int)(value))); \
+ else \
+ __asm__ __volatile__( \
+ ".set\tmips32\n\t" \
+ "mtc0\t%z0, " #register ", " #sel "\n\t" \
+ ".set\tmips0" \
+ : : "Jr" ((unsigned int)(value))); \
+} while (0)
+
+#define __write_64bit_c0_register(register, sel, value) \
+do { \
+ if (sizeof(unsigned long) == 4) \
+ __write_64bit_c0_split(register, sel, value); \
+ else if (sel == 0) \
+ __asm__ __volatile__( \
+ ".set\tmips3\n\t" \
+ "dmtc0\t%z0, " #register "\n\t" \
+ ".set\tmips0" \
+ : : "Jr" (value)); \
+ else \
+ __asm__ __volatile__( \
+ ".set\tmips64\n\t" \
+ "dmtc0\t%z0, " #register ", " #sel "\n\t" \
+ ".set\tmips0" \
+ : : "Jr" (value)); \
+} while (0)
+
+#define __read_ulong_c0_register(reg, sel) \
+ ((sizeof(unsigned long) == 4) ? \
+ (unsigned long) __read_32bit_c0_register(reg, sel) : \
+ (unsigned long) __read_64bit_c0_register(reg, sel))
+
+#define __write_ulong_c0_register(reg, sel, val) \
+do { \
+ if (sizeof(unsigned long) == 4) \
+ __write_32bit_c0_register(reg, sel, val); \
+ else \
+ __write_64bit_c0_register(reg, sel, val); \
+} while (0)
+
+/*
+ * On RM7000/RM9000 these are uses to access cop0 set 1 registers
+ */
+#define __read_32bit_c0_ctrl_register(source) \
+({ int __res; \
+ __asm__ __volatile__( \
+ "cfc0\t%0, " #source "\n\t" \
+ : "=r" (__res)); \
+ __res; \
+})
+
+#define __write_32bit_c0_ctrl_register(register, value) \
+do { \
+ __asm__ __volatile__( \
+ "ctc0\t%z0, " #register "\n\t" \
+ : : "Jr" ((unsigned int)(value))); \
+} while (0)
+
+/*
+ * These versions are only needed for systems with more than 38 bits of
+ * physical address space running the 32-bit kernel. That's none atm :-)
+ */
+#define __read_64bit_c0_split(source, sel) \
+({ \
+ unsigned long long __val; \
+ unsigned long __flags; \
+ \
+ local_irq_save(__flags); \
+ if (sel == 0) \
+ __asm__ __volatile__( \
+ ".set\tmips64\n\t" \
+ "dmfc0\t%M0, " #source "\n\t" \
+ "dsll\t%L0, %M0, 32\n\t" \
+ "dsra\t%M0, %M0, 32\n\t" \
+ "dsra\t%L0, %L0, 32\n\t" \
+ ".set\tmips0" \
+ : "=r" (__val)); \
+ else \
+ __asm__ __volatile__( \
+ ".set\tmips64\n\t" \
+ "dmfc0\t%M0, " #source ", " #sel "\n\t" \
+ "dsll\t%L0, %M0, 32\n\t" \
+ "dsra\t%M0, %M0, 32\n\t" \
+ "dsra\t%L0, %L0, 32\n\t" \
+ ".set\tmips0" \
+ : "=r" (__val)); \
+ local_irq_restore(__flags); \
+ \
+ __val; \
+})
+
+#define __write_64bit_c0_split(source, sel, val) \
+do { \
+ unsigned long __flags; \
+ \
+ local_irq_save(__flags); \
+ if (sel == 0) \
+ __asm__ __volatile__( \
+ ".set\tmips64\n\t" \
+ "dsll\t%L0, %L0, 32\n\t" \
+ "dsrl\t%L0, %L0, 32\n\t" \
+ "dsll\t%M0, %M0, 32\n\t" \
+ "or\t%L0, %L0, %M0\n\t" \
+ "dmtc0\t%L0, " #source "\n\t" \
+ ".set\tmips0" \
+ : : "r" (val)); \
+ else \
+ __asm__ __volatile__( \
+ ".set\tmips64\n\t" \
+ "dsll\t%L0, %L0, 32\n\t" \
+ "dsrl\t%L0, %L0, 32\n\t" \
+ "dsll\t%M0, %M0, 32\n\t" \
+ "or\t%L0, %L0, %M0\n\t" \
+ "dmtc0\t%L0, " #source ", " #sel "\n\t" \
+ ".set\tmips0" \
+ : : "r" (val)); \
+ local_irq_restore(__flags); \
+} while (0)
+
+#define read_c0_index() __read_32bit_c0_register($0, 0)
+#define write_c0_index(val) __write_32bit_c0_register($0, 0, val)
+
+#define read_c0_random() __read_32bit_c0_register($1, 0)
+#define write_c0_random(val) __write_32bit_c0_register($1, 0, val)
+
+#define read_c0_entrylo0() __read_ulong_c0_register($2, 0)
+#define write_c0_entrylo0(val) __write_ulong_c0_register($2, 0, val)
+
+#define read_c0_entrylo1() __read_ulong_c0_register($3, 0)
+#define write_c0_entrylo1(val) __write_ulong_c0_register($3, 0, val)
+
+#define read_c0_conf() __read_32bit_c0_register($3, 0)
+#define write_c0_conf(val) __write_32bit_c0_register($3, 0, val)
+
+#define read_c0_context() __read_ulong_c0_register($4, 0)
+#define write_c0_context(val) __write_ulong_c0_register($4, 0, val)
+
+#define read_c0_userlocal() __read_ulong_c0_register($4, 2)
+#define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
+
+#define read_c0_pagemask() __read_32bit_c0_register($5, 0)
+#define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val)
+
+#define read_c0_pagegrain() __read_32bit_c0_register($5, 1)
+#define write_c0_pagegrain(val) __write_32bit_c0_register($5, 1, val)
+
+#define read_c0_wired() __read_32bit_c0_register($6, 0)
+#define write_c0_wired(val) __write_32bit_c0_register($6, 0, val)
+
+#define read_c0_info() __read_32bit_c0_register($7, 0)
+
+#define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */
+#define write_c0_cache(val) __write_32bit_c0_register($7, 0, val)
+
+#define read_c0_badvaddr() __read_ulong_c0_register($8, 0)
+#define write_c0_badvaddr(val) __write_ulong_c0_register($8, 0, val)
+
+#define read_c0_count() __read_32bit_c0_register($9, 0)
+#define write_c0_count(val) __write_32bit_c0_register($9, 0, val)
+
+#define read_c0_count2() __read_32bit_c0_register($9, 6) /* pnx8550 */
+#define write_c0_count2(val) __write_32bit_c0_register($9, 6, val)
+
+#define read_c0_count3() __read_32bit_c0_register($9, 7) /* pnx8550 */
+#define write_c0_count3(val) __write_32bit_c0_register($9, 7, val)
+
+#define read_c0_entryhi() __read_ulong_c0_register($10, 0)
+#define write_c0_entryhi(val) __write_ulong_c0_register($10, 0, val)
+
+#define read_c0_compare() __read_32bit_c0_register($11, 0)
+#define write_c0_compare(val) __write_32bit_c0_register($11, 0, val)
+
+#define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */
+#define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val)
+
+#define read_c0_compare3() __read_32bit_c0_register($11, 7) /* pnx8550 */
+#define write_c0_compare3(val) __write_32bit_c0_register($11, 7, val)
+
+#define read_c0_status() __read_32bit_c0_register($12, 0)
+#ifdef CONFIG_MIPS_MT_SMTC
+#define write_c0_status(val) \
+do { \
+ __write_32bit_c0_register($12, 0, val); \
+ __ehb(); \
+} while (0)
+#else
+/*
+ * Legacy non-SMTC code, which may be hazardous
+ * but which might not support EHB
+ */
+#define write_c0_status(val) __write_32bit_c0_register($12, 0, val)
+#endif /* CONFIG_MIPS_MT_SMTC */
+
+#define read_c0_cause() __read_32bit_c0_register($13, 0)
+#define write_c0_cause(val) __write_32bit_c0_register($13, 0, val)
+
+#define read_c0_epc() __read_ulong_c0_register($14, 0)
+#define write_c0_epc(val) __write_ulong_c0_register($14, 0, val)
+
+#define read_c0_prid() __read_32bit_c0_register($15, 0)
+
+#define read_c0_config() __read_32bit_c0_register($16, 0)
+#define read_c0_config1() __read_32bit_c0_register($16, 1)
+#define read_c0_config2() __read_32bit_c0_register($16, 2)
+#define read_c0_config3() __read_32bit_c0_register($16, 3)
+#define read_c0_config4() __read_32bit_c0_register($16, 4)
+#define read_c0_config5() __read_32bit_c0_register($16, 5)
+#define read_c0_config6() __read_32bit_c0_register($16, 6)
+#define read_c0_config7() __read_32bit_c0_register($16, 7)
+#define write_c0_config(val) __write_32bit_c0_register($16, 0, val)
+#define write_c0_config1(val) __write_32bit_c0_register($16, 1, val)
+#define write_c0_config2(val) __write_32bit_c0_register($16, 2, val)
+#define write_c0_config3(val) __write_32bit_c0_register($16, 3, val)
+#define write_c0_config4(val) __write_32bit_c0_register($16, 4, val)
+#define write_c0_config5(val) __write_32bit_c0_register($16, 5, val)
+#define write_c0_config6(val) __write_32bit_c0_register($16, 6, val)
+#define write_c0_config7(val) __write_32bit_c0_register($16, 7, val)
+
+/*
+ * The WatchLo register. There may be up to 8 of them.
+ */
+#define read_c0_watchlo0() __read_ulong_c0_register($18, 0)
+#define read_c0_watchlo1() __read_ulong_c0_register($18, 1)
+#define read_c0_watchlo2() __read_ulong_c0_register($18, 2)
+#define read_c0_watchlo3() __read_ulong_c0_register($18, 3)
+#define read_c0_watchlo4() __read_ulong_c0_register($18, 4)
+#define read_c0_watchlo5() __read_ulong_c0_register($18, 5)
+#define read_c0_watchlo6() __read_ulong_c0_register($18, 6)
+#define read_c0_watchlo7() __read_ulong_c0_register($18, 7)
+#define write_c0_watchlo0(val) __write_ulong_c0_register($18, 0, val)
+#define write_c0_watchlo1(val) __write_ulong_c0_register($18, 1, val)
+#define write_c0_watchlo2(val) __write_ulong_c0_register($18, 2, val)
+#define write_c0_watchlo3(val) __write_ulong_c0_register($18, 3, val)
+#define write_c0_watchlo4(val) __write_ulong_c0_register($18, 4, val)
+#define write_c0_watchlo5(val) __write_ulong_c0_register($18, 5, val)
+#define write_c0_watchlo6(val) __write_ulong_c0_register($18, 6, val)
+#define write_c0_watchlo7(val) __write_ulong_c0_register($18, 7, val)
+
+/*
+ * The WatchHi register. There may be up to 8 of them.
+ */
+#define read_c0_watchhi0() __read_32bit_c0_register($19, 0)
+#define read_c0_watchhi1() __read_32bit_c0_register($19, 1)
+#define read_c0_watchhi2() __read_32bit_c0_register($19, 2)
+#define read_c0_watchhi3() __read_32bit_c0_register($19, 3)
+#define read_c0_watchhi4() __read_32bit_c0_register($19, 4)
+#define read_c0_watchhi5() __read_32bit_c0_register($19, 5)
+#define read_c0_watchhi6() __read_32bit_c0_register($19, 6)
+#define read_c0_watchhi7() __read_32bit_c0_register($19, 7)
+
+#define write_c0_watchhi0(val) __write_32bit_c0_register($19, 0, val)
+#define write_c0_watchhi1(val) __write_32bit_c0_register($19, 1, val)
+#define write_c0_watchhi2(val) __write_32bit_c0_register($19, 2, val)
+#define write_c0_watchhi3(val) __write_32bit_c0_register($19, 3, val)
+#define write_c0_watchhi4(val) __write_32bit_c0_register($19, 4, val)
+#define write_c0_watchhi5(val) __write_32bit_c0_register($19, 5, val)
+#define write_c0_watchhi6(val) __write_32bit_c0_register($19, 6, val)
+#define write_c0_watchhi7(val) __write_32bit_c0_register($19, 7, val)
+
+#define read_c0_xcontext() __read_ulong_c0_register($20, 0)
+#define write_c0_xcontext(val) __write_ulong_c0_register($20, 0, val)
+
+#define read_c0_intcontrol() __read_32bit_c0_ctrl_register($20)
+#define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val)
+
+#define read_c0_framemask() __read_32bit_c0_register($21, 0)
+#define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
+
+/* RM9000 PerfControl performance counter control register */
+#define read_c0_perfcontrol() __read_32bit_c0_register($22, 0)
+#define write_c0_perfcontrol(val) __write_32bit_c0_register($22, 0, val)
+
+#define read_c0_diag() __read_32bit_c0_register($22, 0)
+#define write_c0_diag(val) __write_32bit_c0_register($22, 0, val)
+
+#define read_c0_diag1() __read_32bit_c0_register($22, 1)
+#define write_c0_diag1(val) __write_32bit_c0_register($22, 1, val)
+
+#define read_c0_diag2() __read_32bit_c0_register($22, 2)
+#define write_c0_diag2(val) __write_32bit_c0_register($22, 2, val)
+
+#define read_c0_diag3() __read_32bit_c0_register($22, 3)
+#define write_c0_diag3(val) __write_32bit_c0_register($22, 3, val)
+
+#define read_c0_diag4() __read_32bit_c0_register($22, 4)
+#define write_c0_diag4(val) __write_32bit_c0_register($22, 4, val)
+
+#define read_c0_diag5() __read_32bit_c0_register($22, 5)
+#define write_c0_diag5(val) __write_32bit_c0_register($22, 5, val)
+
+#define read_c0_debug() __read_32bit_c0_register($23, 0)
+#define write_c0_debug(val) __write_32bit_c0_register($23, 0, val)
+
+#define read_c0_depc() __read_ulong_c0_register($24, 0)
+#define write_c0_depc(val) __write_ulong_c0_register($24, 0, val)
+
+/*
+ * MIPS32 / MIPS64 performance counters
+ */
+#define read_c0_perfctrl0() __read_32bit_c0_register($25, 0)
+#define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
+#define read_c0_perfcntr0() __read_32bit_c0_register($25, 1)
+#define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
+#define read_c0_perfctrl1() __read_32bit_c0_register($25, 2)
+#define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
+#define read_c0_perfcntr1() __read_32bit_c0_register($25, 3)
+#define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
+#define read_c0_perfctrl2() __read_32bit_c0_register($25, 4)
+#define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
+#define read_c0_perfcntr2() __read_32bit_c0_register($25, 5)
+#define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
+#define read_c0_perfctrl3() __read_32bit_c0_register($25, 6)
+#define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
+#define read_c0_perfcntr3() __read_32bit_c0_register($25, 7)
+#define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
+
+/* RM9000 PerfCount performance counter register */
+#define read_c0_perfcount() __read_64bit_c0_register($25, 0)
+#define write_c0_perfcount(val) __write_64bit_c0_register($25, 0, val)
+
+#define read_c0_ecc() __read_32bit_c0_register($26, 0)
+#define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val)
+
+#define read_c0_derraddr0() __read_ulong_c0_register($26, 1)
+#define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
+
+#define read_c0_cacheerr() __read_32bit_c0_register($27, 0)
+
+#define read_c0_derraddr1() __read_ulong_c0_register($27, 1)
+#define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val)
+
+#define read_c0_taglo() __read_32bit_c0_register($28, 0)
+#define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val)
+
+#define read_c0_dtaglo() __read_32bit_c0_register($28, 2)
+#define write_c0_dtaglo(val) __write_32bit_c0_register($28, 2, val)
+
+#define read_c0_ddatalo() __read_32bit_c0_register($28, 3)
+#define write_c0_ddatalo(val) __write_32bit_c0_register($28, 3, val)
+
+#define read_c0_staglo() __read_32bit_c0_register($28, 4)
+#define write_c0_staglo(val) __write_32bit_c0_register($28, 4, val)
+
+#define read_c0_taghi() __read_32bit_c0_register($29, 0)
+#define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val)
+
+#define read_c0_errorepc() __read_ulong_c0_register($30, 0)
+#define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val)
+
+/* MIPSR2 */
+#define read_c0_hwrena() __read_32bit_c0_register($7, 0)
+#define write_c0_hwrena(val) __write_32bit_c0_register($7, 0, val)
+
+#define read_c0_intctl() __read_32bit_c0_register($12, 1)
+#define write_c0_intctl(val) __write_32bit_c0_register($12, 1, val)
+
+#define read_c0_srsctl() __read_32bit_c0_register($12, 2)
+#define write_c0_srsctl(val) __write_32bit_c0_register($12, 2, val)
+
+#define read_c0_srsmap() __read_32bit_c0_register($12, 3)
+#define write_c0_srsmap(val) __write_32bit_c0_register($12, 3, val)
+
+#define read_c0_ebase() __read_32bit_c0_register($15, 1)
+#define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val)
+
+/* BMIPS3300 */
+#define read_c0_brcm_config_0() __read_32bit_c0_register($22, 0)
+#define write_c0_brcm_config_0(val) __write_32bit_c0_register($22, 0, val)
+
+#define read_c0_brcm_bus_pll() __read_32bit_c0_register($22, 4)
+#define write_c0_brcm_bus_pll(val) __write_32bit_c0_register($22, 4, val)
+
+#define read_c0_brcm_reset() __read_32bit_c0_register($22, 5)
+#define write_c0_brcm_reset(val) __write_32bit_c0_register($22, 5, val)
+
+/* BMIPS4380 */
+#define read_c0_brcm_cmt_intr() __read_32bit_c0_register($22, 1)
+#define write_c0_brcm_cmt_intr(val) __write_32bit_c0_register($22, 1, val)
+
+#define read_c0_brcm_cmt_ctrl() __read_32bit_c0_register($22, 2)
+#define write_c0_brcm_cmt_ctrl(val) __write_32bit_c0_register($22, 2, val)
+
+#define read_c0_brcm_cmt_local() __read_32bit_c0_register($22, 3)
+#define write_c0_brcm_cmt_local(val) __write_32bit_c0_register($22, 3, val)
+
+#define read_c0_brcm_config_1() __read_32bit_c0_register($22, 5)
+#define write_c0_brcm_config_1(val) __write_32bit_c0_register($22, 5, val)
+
+#define read_c0_brcm_cbr() __read_32bit_c0_register($22, 6)
+#define write_c0_brcm_cbr(val) __write_32bit_c0_register($22, 6, val)
+
+/* BMIPS5000 */
+#define read_c0_brcm_config() __read_32bit_c0_register($22, 0)
+#define write_c0_brcm_config(val) __write_32bit_c0_register($22, 0, val)
+
+#define read_c0_brcm_mode() __read_32bit_c0_register($22, 1)
+#define write_c0_brcm_mode(val) __write_32bit_c0_register($22, 1, val)
+
+#define read_c0_brcm_action() __read_32bit_c0_register($22, 2)
+#define write_c0_brcm_action(val) __write_32bit_c0_register($22, 2, val)
+
+#define read_c0_brcm_edsp() __read_32bit_c0_register($22, 3)
+#define write_c0_brcm_edsp(val) __write_32bit_c0_register($22, 3, val)
+
+#define read_c0_brcm_bootvec() __read_32bit_c0_register($22, 4)
+#define write_c0_brcm_bootvec(val) __write_32bit_c0_register($22, 4, val)
+
+#define read_c0_brcm_sleepcount() __read_32bit_c0_register($22, 7)
+#define write_c0_brcm_sleepcount(val) __write_32bit_c0_register($22, 7, val)
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_MIPSREGS_H */
diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h
new file mode 100644
index 0000000..0463565
--- /dev/null
+++ b/arch/mips/include/asm/module.h
@@ -0,0 +1,36 @@
+/*
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief mips module support
+ *
+ */
+
+#ifndef _ASM_MIPS_MODULE_H_
+#define _ASM_MIPS_MODULE_H_
+
+struct mod_arch_specific
+{
+ int foo;
+};
+
+#define Elf_Shdr Elf32_Shdr
+#define Elf_Ehdr Elf32_Ehdr
+
+#endif /* _ASM_MIPS_MODULE_H_ */
diff --git a/arch/mips/include/asm/posix_types.h b/arch/mips/include/asm/posix_types.h
new file mode 100644
index 0000000..a7d0c25
--- /dev/null
+++ b/arch/mips/include/asm/posix_types.h
@@ -0,0 +1,48 @@
+/*
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief mips posix types
+ *
+ * Minimal set to make all the other header files copied from the Linxu kernel happy
+ */
+
+#ifndef _ASM_MIPS_POSIX_TYPES_H
+#define _ASM_MIPS_POSIX_TYPES_H
+
+typedef unsigned long __kernel_ino_t;
+typedef unsigned short __kernel_mode_t;
+typedef unsigned short __kernel_nlink_t;
+typedef long __kernel_off_t;
+typedef int __kernel_pid_t;
+typedef unsigned int __kernel_size_t;
+typedef int __kernel_ssize_t;
+typedef int __kernel_ptrdiff_t;
+typedef long __kernel_time_t;
+typedef long __kernel_suseconds_t;
+typedef long __kernel_clock_t;
+typedef int __kernel_daddr_t;
+typedef char * __kernel_caddr_t;
+typedef unsigned short __kernel_uid16_t;
+typedef unsigned short __kernel_gid16_t;
+typedef unsigned int __kernel_uid32_t;
+typedef unsigned int __kernel_gid32_t;
+typedef long long __kernel_loff_t;
+
+#endif /* _ASM_MIPS_POSIX_TYPES_H */
diff --git a/arch/mips/include/asm/regdef.h b/arch/mips/include/asm/regdef.h
new file mode 100644
index 0000000..7c8ecb6
--- /dev/null
+++ b/arch/mips/include/asm/regdef.h
@@ -0,0 +1,100 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1985 MIPS Computer Systems, Inc.
+ * Copyright (C) 1994, 95, 99, 2003 by Ralf Baechle
+ * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_REGDEF_H
+#define _ASM_REGDEF_H
+
+#include <asm/sgidefs.h>
+
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+
+/*
+ * Symbolic register names for 32 bit ABI
+ */
+#define zero $0 /* wired zero */
+#define AT $1 /* assembler temp - uppercase because of ".set at" */
+#define v0 $2 /* return value */
+#define v1 $3
+#define a0 $4 /* argument registers */
+#define a1 $5
+#define a2 $6
+#define a3 $7
+#define t0 $8 /* caller saved */
+#define t1 $9
+#define t2 $10
+#define t3 $11
+#define t4 $12
+#define t5 $13
+#define t6 $14
+#define t7 $15
+#define s0 $16 /* callee saved */
+#define s1 $17
+#define s2 $18
+#define s3 $19
+#define s4 $20
+#define s5 $21
+#define s6 $22
+#define s7 $23
+#define t8 $24 /* caller saved */
+#define t9 $25
+#define jp $25 /* PIC jump register */
+#define k0 $26 /* kernel scratch */
+#define k1 $27
+#define gp $28 /* global pointer */
+#define sp $29 /* stack pointer */
+#define fp $30 /* frame pointer */
+#define s8 $30 /* same like fp! */
+#define ra $31 /* return address */
+
+#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
+
+#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
+
+#define zero $0 /* wired zero */
+#define AT $at /* assembler temp - uppercase because of ".set at" */
+#define v0 $2 /* return value - caller saved */
+#define v1 $3
+#define a0 $4 /* argument registers */
+#define a1 $5
+#define a2 $6
+#define a3 $7
+#define a4 $8 /* arg reg 64 bit; caller saved in 32 bit */
+#define ta0 $8
+#define a5 $9
+#define ta1 $9
+#define a6 $10
+#define ta2 $10
+#define a7 $11
+#define ta3 $11
+#define t0 $12 /* caller saved */
+#define t1 $13
+#define t2 $14
+#define t3 $15
+#define s0 $16 /* callee saved */
+#define s1 $17
+#define s2 $18
+#define s3 $19
+#define s4 $20
+#define s5 $21
+#define s6 $22
+#define s7 $23
+#define t8 $24 /* caller saved */
+#define t9 $25 /* callee address for PIC/temp */
+#define jp $25 /* PIC jump register */
+#define k0 $26 /* kernel temporary */
+#define k1 $27
+#define gp $28 /* global pointer - caller saved for PIC */
+#define sp $29 /* stack pointer */
+#define fp $30 /* frame pointer */
+#define s8 $30 /* callee saved */
+#define ra $31 /* return address */
+
+#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */
+
+#endif /* _ASM_REGDEF_H */
diff --git a/arch/mips/include/asm/sections.h b/arch/mips/include/asm/sections.h
new file mode 100644
index 0000000..2b8c516
--- /dev/null
+++ b/arch/mips/include/asm/sections.h
@@ -0,0 +1 @@
+#include <asm-generic/sections.h>
diff --git a/arch/mips/include/asm/sgidefs.h b/arch/mips/include/asm/sgidefs.h
new file mode 100644
index 0000000..876442f
--- /dev/null
+++ b/arch/mips/include/asm/sgidefs.h
@@ -0,0 +1,44 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1999, 2001 Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ * Copyright (C) 2001 MIPS Technologies, Inc.
+ */
+#ifndef __ASM_SGIDEFS_H
+#define __ASM_SGIDEFS_H
+
+/*
+ * Using a Linux compiler for building Linux seems logic but not to
+ * everybody.
+ */
+#ifndef __linux__
+#error Use a Linux compiler or give up.
+#endif
+
+/*
+ * Definitions for the ISA levels
+ *
+ * With the introduction of MIPS32 / MIPS64 instruction sets definitions
+ * MIPS ISAs are no longer subsets of each other. Therefore comparisons
+ * on these symbols except with == may result in unexpected results and
+ * are forbidden!
+ */
+#define _MIPS_ISA_MIPS1 1
+#define _MIPS_ISA_MIPS2 2
+#define _MIPS_ISA_MIPS3 3
+#define _MIPS_ISA_MIPS4 4
+#define _MIPS_ISA_MIPS5 5
+#define _MIPS_ISA_MIPS32 6
+#define _MIPS_ISA_MIPS64 7
+
+/*
+ * Subprogram calling convention
+ */
+#define _MIPS_SIM_ABI32 1
+#define _MIPS_SIM_NABI32 2
+#define _MIPS_SIM_ABI64 3
+
+#endif /* __ASM_SGIDEFS_H */
diff --git a/arch/mips/include/asm/string.h b/arch/mips/include/asm/string.h
new file mode 100644
index 0000000..9e334a2
--- /dev/null
+++ b/arch/mips/include/asm/string.h
@@ -0,0 +1,31 @@
+/*
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief mips specific string optimizations
+ *
+ * Thanks to the Linux kernel here we can add many micro optimized string
+ * functions. But currently it makes no sense, to do so.
+ */
+#ifndef __ASM_MIPS_STRING_H
+#define __ASM_MIPS_STRING_H
+
+/* nothing special yet */
+
+#endif
diff --git a/arch/mips/include/asm/swab.h b/arch/mips/include/asm/swab.h
new file mode 100644
index 0000000..97c2f81
--- /dev/null
+++ b/arch/mips/include/asm/swab.h
@@ -0,0 +1,59 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 99, 2003 by Ralf Baechle
+ */
+#ifndef _ASM_SWAB_H
+#define _ASM_SWAB_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+#define __SWAB_64_THRU_32__
+
+#ifdef CONFIG_CPU_MIPSR2
+
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+ __asm__(
+ " wsbh %0, %1 \n"
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+#define __arch_swab16 __arch_swab16
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+ __asm__(
+ " wsbh %0, %1 \n"
+ " rotr %0, %0, 16 \n"
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+#define __arch_swab32 __arch_swab32
+
+/*
+ * Having already checked for CONFIG_CPU_MIPSR2, enable the
+ * optimized version for 64-bit kernel on r2 CPUs.
+ */
+#ifdef CONFIG_64BIT
+static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
+{
+ __asm__(
+ " dsbh %0, %1\n"
+ " dshd %0, %0"
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+#define __arch_swab64 __arch_swab64
+#endif /* CONFIG_64BIT */
+#endif /* CONFIG_CPU_MIPSR2 */
+#endif /* _ASM_SWAB_H */
diff --git a/arch/mips/include/asm/types.h b/arch/mips/include/asm/types.h
new file mode 100644
index 0000000..5c1e2de
--- /dev/null
+++ b/arch/mips/include/asm/types.h
@@ -0,0 +1,44 @@
+/*
+ * 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
+ *
+ */
+
+#ifndef __ASM_MIPS_TYPES_H
+#define __ASM_MIPS_TYPES_H
+
+#ifndef __ASSEMBLY__
+
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+
+typedef unsigned char u8;
+
+typedef unsigned short u16;
+
+typedef unsigned int u32;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_MIPS_TYPES_H */
diff --git a/arch/mips/include/mach/debug_ll.h b/arch/mips/include/mach/debug_ll.h
new file mode 100644
index 0000000..9fff7be
--- /dev/null
+++ b/arch/mips/include/mach/debug_ll.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2008 Carsten Schlote <c.schlote@konzeptpark.de>
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * This file is part of barebox.
+ *
+ * barebox 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * barebox 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 barebox. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file
+ * This File contains declaration for early output support
+ */
+#ifndef __INCLUDE_ARCH_DEBUG_LL_H__
+#define __INCLUDE_ARCH_DEBUG_LL_H__
+
+#include <asm/io.h>
+#include <mach/hardware.h>
+
+extern __inline__ void putc( char ch )
+{
+ writeb(ch, DEBUG_LL_UART_ADDR);
+}
+
+#endif /* __INCLUDE_ARCH_DEBUG_LL_H__ */
diff --git a/arch/mips/lib/.gitignore b/arch/mips/lib/.gitignore
new file mode 100644
index 0000000..d116578
--- /dev/null
+++ b/arch/mips/lib/.gitignore
@@ -0,0 +1 @@
+barebox.lds
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
new file mode 100644
index 0000000..27cd97f
--- /dev/null
+++ b/arch/mips/lib/Makefile
@@ -0,0 +1,5 @@
+extra-$(CONFIG_GENERIC_LINKER_SCRIPT) += barebox.lds
+obj-y += lshrdi3.o
+obj-y += ashldi3.o
+obj-y += ashrdi3.o
+obj-y += memory.o
diff --git a/arch/mips/lib/ashldi3.c b/arch/mips/lib/ashldi3.c
new file mode 100644
index 0000000..461450a
--- /dev/null
+++ b/arch/mips/lib/ashldi3.c
@@ -0,0 +1,27 @@
+#include "libgcc.h"
+
+long long __ashldi3(long long u, word_type b)
+{
+ DWunion uu, w;
+ word_type bm;
+
+ if (b == 0)
+ return u;
+
+ uu.ll = u;
+ bm = 32 - b;
+
+ if (bm <= 0) {
+ w.s.low = 0;
+ w.s.high = (unsigned int) uu.s.low << -bm;
+ } else {
+ const unsigned int carries = (unsigned int) uu.s.low >> bm;
+
+ w.s.low = (unsigned int) uu.s.low << b;
+ w.s.high = ((unsigned int) uu.s.high << b) | carries;
+ }
+
+ return w.ll;
+}
+
+EXPORT_SYMBOL(__ashldi3);
diff --git a/arch/mips/lib/ashrdi3.c b/arch/mips/lib/ashrdi3.c
new file mode 100644
index 0000000..a0d005b
--- /dev/null
+++ b/arch/mips/lib/ashrdi3.c
@@ -0,0 +1,29 @@
+#include "libgcc.h"
+
+long long __ashrdi3(long long u, word_type b)
+{
+ DWunion uu, w;
+ word_type bm;
+
+ if (b == 0)
+ return u;
+
+ uu.ll = u;
+ bm = 32 - b;
+
+ if (bm <= 0) {
+ /* w.s.high = 1..1 or 0..0 */
+ w.s.high =
+ uu.s.high >> 31;
+ w.s.low = uu.s.high >> -bm;
+ } else {
+ const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+ w.s.high = uu.s.high >> b;
+ w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+ }
+
+ return w.ll;
+}
+
+EXPORT_SYMBOL(__ashrdi3);
diff --git a/arch/mips/lib/barebox.lds.S b/arch/mips/lib/barebox.lds.S
new file mode 100644
index 0000000..1c9e0c3
--- /dev/null
+++ b/arch/mips/lib/barebox.lds.S
@@ -0,0 +1,76 @@
+/*
+ * 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-generic/barebox.lds.h>
+
+OUTPUT_ARCH(mips)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0xa0010000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ _start = .;
+ *(.text_entry*)
+ _stext = .;
+ _text = .;
+ *(.text_bare_init*)
+ *(.text*)
+ }
+
+ PRE_IMAGE
+
+ . = ALIGN(4);
+ .rodata : { *(.rodata*) }
+
+ _etext = .; /* End of text and rodata section */
+
+ . = ALIGN(4);
+ .data : { *(.data*) }
+
+ . = ALIGN(4);
+ .got : { *(.got*) }
+
+ . = .;
+ __barebox_cmd_start = .;
+ .barebox_cmd : { BAREBOX_CMDS }
+ __barebox_cmd_end = .;
+
+ __barebox_initcalls_start = .;
+ .barebox_initcalls : { INITCALLS }
+ __barebox_initcalls_end = .;
+
+ __usymtab_start = .;
+ __usymtab : { BAREBOX_SYMS }
+ __usymtab_end = .;
+
+ __early_init_data_begin = .;
+ .early_init_data : { *(.early_init_data) }
+ __early_init_data_end = .;
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .bss : { *(.bss*) }
+ __bss_end = .;
+ _end = .;
+}
diff --git a/arch/mips/lib/libgcc.h b/arch/mips/lib/libgcc.h
new file mode 100644
index 0000000..05909d5
--- /dev/null
+++ b/arch/mips/lib/libgcc.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_LIBGCC_H
+#define __ASM_LIBGCC_H
+
+#include <asm/byteorder.h>
+
+typedef int word_type __attribute__ ((mode (__word__)));
+
+#ifdef __BIG_ENDIAN
+struct DWstruct {
+ int high, low;
+};
+#elif defined(__LITTLE_ENDIAN)
+struct DWstruct {
+ int low, high;
+};
+#else
+#error I feel sick.
+#endif
+
+typedef union {
+ struct DWstruct s;
+ long long ll;
+} DWunion;
+
+#endif /* __ASM_LIBGCC_H */
diff --git a/arch/mips/lib/lshrdi3.c b/arch/mips/lib/lshrdi3.c
new file mode 100644
index 0000000..154757c
--- /dev/null
+++ b/arch/mips/lib/lshrdi3.c
@@ -0,0 +1,27 @@
+#include "libgcc.h"
+
+long long __lshrdi3(long long u, word_type b)
+{
+ DWunion uu, w;
+ word_type bm;
+
+ if (b == 0)
+ return u;
+
+ uu.ll = u;
+ bm = 32 - b;
+
+ if (bm <= 0) {
+ w.s.high = 0;
+ w.s.low = (unsigned int) uu.s.high >> -bm;
+ } else {
+ const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+ w.s.high = (unsigned int) uu.s.high >> b;
+ w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+ }
+
+ return w.ll;
+}
+
+EXPORT_SYMBOL(__lshrdi3);
diff --git a/arch/mips/lib/memory.c b/arch/mips/lib/memory.c
new file mode 100644
index 0000000..e5fabb9
--- /dev/null
+++ b/arch/mips/lib/memory.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2011 Antony Pavlov <antonynpavlov@gmail.com>
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * This file is part of barebox.
+ *
+ * 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 <init.h>
+#include <mem_malloc.h>
+#include <mach/hardware.h>
+
+static int mips_mem_malloc_init(void)
+{
+ mem_malloc_init((void *)MALLOC_BASE,
+ (void *)(MALLOC_BASE + MALLOC_SIZE));
+ return 0;
+}
+core_initcall(mips_mem_malloc_init);
diff --git a/arch/mips/mach-mips.dox b/arch/mips/mach-mips.dox
new file mode 100644
index 0000000..023a829
--- /dev/null
+++ b/arch/mips/mach-mips.dox
@@ -0,0 +1,9 @@
+/* This document is intended to provide the developer with information
+ * how to integrate a new CPU (MACH) into this part of the barebox tree
+ */
+
+/** @page dev_arm_mach MIPS based CPU (MACH) into the tree
+
+FIXME
+
+*/
diff --git a/arch/mips/mach-qemu/Kconfig b/arch/mips/mach-qemu/Kconfig
new file mode 100644
index 0000000..9ed4153
--- /dev/null
+++ b/arch/mips/mach-qemu/Kconfig
@@ -0,0 +1,12 @@
+if MACH_MIPS_MALTA
+menu "Board specific settings "
+
+config BOARDINFO
+ default "qemu malta"
+
+config DEBUG_LL
+ bool "DEBUG_LL"
+ default y
+
+endmenu
+endif
diff --git a/arch/mips/mach-qemu/Makefile b/arch/mips/mach-qemu/Makefile
new file mode 100644
index 0000000..f9f2953
--- /dev/null
+++ b/arch/mips/mach-qemu/Makefile
@@ -0,0 +1,4 @@
+obj-y += reset.o
+
+# reference clocksource
+obj-y += csrc-r4k.o
diff --git a/arch/mips/mach-qemu/csrc-r4k.c b/arch/mips/mach-qemu/csrc-r4k.c
new file mode 100644
index 0000000..bb54700
--- /dev/null
+++ b/arch/mips/mach-qemu/csrc-r4k.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * used code from linux-2.6/arch/mips/include/asm/mipsregs.h
+ *
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief Clocksource based on MIPS CP0 timer
+ */
+
+#include <init.h>
+#include <clock.h>
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+
+static uint64_t c0_hpt_read(void)
+{
+ return read_c0_count();
+}
+
+static struct clocksource cs = {
+ .read = c0_hpt_read,
+ .mask = 0xffffffff,
+};
+
+static int clocksource_init(void)
+{
+ cs.mult = clocksource_hz2mult(50000000, cs.shift);
+ init_clock(&cs);
+
+ return 0;
+}
+core_initcall(clocksource_init);
diff --git a/arch/mips/mach-qemu/include/mach/hardware.h b/arch/mips/mach-qemu/include/mach/hardware.h
new file mode 100644
index 0000000..62e828f
--- /dev/null
+++ b/arch/mips/mach-qemu/include/mach/hardware.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2011 Antony Pavlov <antonynpavlov@gmail.com>
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * This file is part of barebox.
+ *
+ * barebox 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * barebox 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 barebox. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __INCLUDE_ARCH_HARDWARE_H__
+#define __INCLUDE_ARCH_HARDWARE_H__
+
+#define DEBUG_LL_UART_ADDR 0xb00003f8
+#define MALLOC_BASE 0xa0800000
+#define MALLOC_SIZE 0x100000
+
+#endif /* __INCLUDE_ARCH_HARDWARE_H__ */
diff --git a/arch/mips/mach-qemu/reset.c b/arch/mips/mach-qemu/reset.c
new file mode 100644
index 0000000..c5a2537
--- /dev/null
+++ b/arch/mips/mach-qemu/reset.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2009 Juergen Beisert, Pengutronix
+ *
+ * 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
+ *
+ */
+
+/**
+ * @file
+ * @brief Resetting an CPU
+ */
+
+#include <common.h>
+
+void reset_cpu(ulong addr)
+{
+ /** How to reset the machine? */
+ while(1)
+ ;
+}
+EXPORT_SYMBOL(reset_cpu);
--
1.7.5.4
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