[MIPS] Add support for BCM47XX CPUs. (1c0c13eb) · Commits · 戴 / test

arch/mips/Kconfig

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		@@ -44,6 +44,20 @@ config BASLER_EXCITE_PROTOTYPE
		note that a kernel built with this option selected will not be
		able to run on normal units.

		config BCM47XX
		bool "BCM47XX based boards"
		select DMA_NONCOHERENT
		select HW_HAS_PCI
		select IRQ_CPU
		select SYS_HAS_CPU_MIPS32_R1
		select SYS_SUPPORTS_32BIT_KERNEL
		select SYS_SUPPORTS_LITTLE_ENDIAN
		select SSB
		select SSB_DRIVER_MIPS
		select GENERIC_GPIO
		help
		Support for BCM47XX based boards

		config MIPS_COBALT
		bool "Cobalt Server"
		select DMA_NONCOHERENT

arch/mips/Makefile

+7 −0

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		@@ -534,6 +534,13 @@ load-$(CONFIG_SIBYTE_SWARM) := 0xffffffff80100000
		libs-$(CONFIG_SIBYTE_BIGSUR) += arch/mips/sibyte/swarm/
		load-$(CONFIG_SIBYTE_BIGSUR) := 0xffffffff80100000

		#
		# Broadcom BCM47XX boards
		#
		core-$(CONFIG_BCM47XX) += arch/mips/bcm47xx/
		cflags-$(CONFIG_BCM47XX) += -Iinclude/asm-mips/mach-bcm47xx
		load-$(CONFIG_BCM47XX) := 0xffffffff80001000

		#
		# SNI RM
		#

arch/mips/bcm47xx/Makefile

0 → 100644

+6 −0

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		#
		# Makefile for the BCM47XX specific kernel interface routines
		# under Linux.
		#

		obj-y := irq.o prom.o serial.o setup.o time.o

arch/mips/bcm47xx/irq.c

0 → 100644

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		/*
		* Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
		*
		* 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
		* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
		* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
		* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
		* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
		* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*
		* 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.,
		* 675 Mass Ave, Cambridge, MA 02139, USA.
		*/

		#include <linux/types.h>
		#include <linux/interrupt.h>
		#include <linux/irq.h>
		#include <asm/irq_cpu.h>

		void plat_irq_dispatch(void)
		{
		u32 cause;

		cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;

		clear_c0_status(cause);

		if (cause & CAUSEF_IP7)
		do_IRQ(7);
		if (cause & CAUSEF_IP2)
		do_IRQ(2);
		if (cause & CAUSEF_IP3)
		do_IRQ(3);
		if (cause & CAUSEF_IP4)
		do_IRQ(4);
		if (cause & CAUSEF_IP5)
		do_IRQ(5);
		if (cause & CAUSEF_IP6)
		do_IRQ(6);
		}

		void __init arch_init_irq(void)
		{
		mips_cpu_irq_init();
		}

arch/mips/bcm47xx/prom.c

0 → 100644

+49 −0

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		/*
		* Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
		*
		* 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
		* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
		* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
		* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
		* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
		* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*
		* 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.,
		* 675 Mass Ave, Cambridge, MA 02139, USA.
		*/

		#include <linux/init.h>
		#include <asm/bootinfo.h>

		const char *get_system_type(void)
		{
		return "Broadcom BCM47XX";
		}

		void __init prom_init(void)
		{
		unsigned long mem;

		/* Figure out memory size by finding aliases */
		for (mem = (1 << 20); mem < (128 << 20); mem += (1 << 20)) {
		if ((unsigned long )((unsigned long)(prom_init) + mem) ==
		(unsigned long )(prom_init))
		break;
		}

		add_memory_region(0, mem, BOOT_MEM_RAM);
		}

		void __init prom_free_prom_memory(void)
		{
		}

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