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839cb407de
openwrt-xburst/target/linux/linux-2.4/patches/ar7/000-ar7_support.patch
nbd 839cb407de ar7: clean up system code, add code to generate firmware images 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1386 3c298f89-4303-0410-b956-a3cf2f4a3e73
2005-07-09 21:49:48 +00:00

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101 KiB
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diff -urN kernel-base/arch/mips/ar7/ar7/ar7_jump.S kernel-tmp2/arch/mips/ar7/ar7/ar7_jump.S
--- kernel-base/arch/mips/ar7/ar7/ar7_jump.S 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/ar7/ar7_jump.S 2005-07-10 06:40:39.582267168 +0200
@@ -0,0 +1,89 @@
+/*
+ * $Id$
+ * Copyright (C) $Date$ $Author$
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/threads.h>
+
+#include <asm/asm.h>
+#include <asm/cacheops.h>
+#include <asm/current.h>
+#include <asm/offset.h>
+#include <asm/processor.h>
+#include <asm/regdef.h>
+#include <asm/cachectl.h>
+#include <asm/mipsregs.h>
+#include <asm/stackframe.h>
+
+.text
+
+.set noreorder
+.set noat
+
+/* TLB Miss Vector */
+
+LEAF(jump_tlb_miss)
+ .set mips2
+ lui k0,0x9400
+ ori k0,0
+ jr k0
+ nop
+END(jump_tlb_miss)
+
+ /* Unused TLB Miss Vector */
+
+LEAF(jump_tlb_miss_unused)
+ .set mips2
+ lui k0,0x9400
+ ori k0,0x80
+ jr k0
+ nop
+END(jump_tlb_miss_unused)
+
+ /* Cache Error Vector */
+
+LEAF(jump_cache_error)
+ .set mips2
+ lui k0,0x9400
+ ori k0,0x100
+ jr k0
+ nop
+END(jump_cache_error)
+
+ /* General Exception */
+
+LEAF(jump_general_exception)
+ .set mips2
+ lui k0,0x9400
+ ori k0,0x180
+ jr k0
+ nop
+END(jump_general_exception)
+
+ /* Dedicated Interrupt */
+
+LEAF(jump_dedicated_interrupt)
+ .set mips2
+ lui k0,0x9400
+ ori k0,0x200
+ jr k0
+ nop
+END(jump_dedicated_interrupt)
+
+ .set at
diff -urN kernel-base/arch/mips/ar7/ar7/ar7_paging.c kernel-tmp2/arch/mips/ar7/ar7/ar7_paging.c
--- kernel-base/arch/mips/ar7/ar7/ar7_paging.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/ar7/ar7_paging.c 2005-07-10 07:08:33.725758672 +0200
@@ -0,0 +1,314 @@
+/*
+ * -*- linux-c -*-
+ * 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) 2002 by Jeff Harrell (jharrell@ti.com)
+ * Copyright (C) 2002 Texas Instruments, Inc.
+ *
+ */
+
+/*
+ * This file takes care of the "memory hole" issue that exists with the standard
+ * linux kernel and the TI Avalanche ASIC. The Avalanche ASIC requires an offset
+ * of 0x14000000 due to the ASIC's memory map constraints. This file corrects the
+ * paging tables so that the only reflect valid memory (i.e. > 0x14000000)
+ *
+ * -JAH
+ */
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/smp.h>
+#include <linux/init.h>
+#ifdef CONFIG_BLK_DEV_INITRD
+#include <linux/blk.h>
+#endif /* CONFIG_BLK_DEV_INITRD */
+#include <linux/highmem.h>
+#include <linux/bootmem.h>
+
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/pgalloc.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/tlb.h>
+#include <asm/cpu.h>
+
+#define __MEMORY_START CONFIG_AR7_MEMORY
+
+#ifdef CONFIG_DISCONTIGMEM
+pg_data_t discontig_page_data[NR_NODES];
+bootmem_data_t discontig_node_bdata[NR_NODES];
+#endif
+
+static unsigned long totalram_pages;
+/* static unsigned long totalhigh_pages; */
+
+#define START_PFN (NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT)
+#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn)
+
+#define PFN_UP(x) (((x) + PAGE_SIZE - 1) >> PAGE_SHIFT)
+#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
+#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
+
+unsigned long bootmap_size;
+
+extern char *prom_getenv(char *envname);
+
+/*
+ * We have upto 8 empty zeroed pages so we can map one of the right colour
+ * when needed. This is necessary only on R4000 / R4400 SC and MC versions
+ * where we have to avoid VCED / VECI exceptions for good performance at
+ * any price. Since page is never written to after the initialization we
+ * don't have to care about aliases on other CPUs.
+ */
+
+static inline unsigned long setup_zero_pages(void)
+{
+ unsigned long order, size;
+ struct page *page;
+ if(current_cpu_data.options & MIPS_CPU_VCE)
+ order = 3;
+ else
+ order = 0;
+
+ empty_zero_page = __get_free_pages(GFP_KERNEL, order);
+
+ if (!empty_zero_page)
+ panic("Oh boy, that early out of memory?");
+
+ page = virt_to_page(empty_zero_page);
+
+ while (page < virt_to_page(empty_zero_page + (PAGE_SIZE << order))) {
+ set_bit(PG_reserved, &page->flags);
+ set_page_count(page, 0);
+ page++;
+ }
+
+ size = PAGE_SIZE << order;
+ zero_page_mask = (size - 1) & PAGE_MASK;
+ memset((void *)empty_zero_page, 0, size);
+
+ return 1UL << order;
+}
+
+/*
+ * paging_init() sets up the page tables
+ *
+ * This routines also unmaps the page at virtual kernel address 0, so
+ * that we can trap those pesky NULL-reference errors in the kernel.
+ */
+void __init paging_init(void)
+{
+ unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
+ unsigned long low, start_pfn;
+
+ /* Initialize the entire pgd. */
+ pgd_init((unsigned long)swapper_pg_dir);
+ pgd_init((unsigned long)swapper_pg_dir + PAGE_SIZE / 2);
+
+
+ start_pfn = START_PFN;
+ // max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
+ low = MAX_LOW_PFN;
+
+ /* Avalanche DMA-able memory 0x14000000+memsize */
+
+ zones_size[ZONE_DMA] = low - start_pfn;
+
+ free_area_init_node(0, NODE_DATA(0), 0, zones_size, __MEMORY_START, 0);
+
+#ifdef CONFIG_DISCONTIGMEM
+ zones_size[ZONE_DMA] = __MEMORY_SIZE_2ND >> PAGE_SHIFT;
+ zones_size[ZONE_NORMAL] = 0;
+ free_area_init_node(1, NODE_DATA(1), 0, zones_size, __MEMORY_START_2ND, 0);
+#endif /* CONFIG_DISCONTIGMEM */
+
+}
+
+extern char _ftext, _etext, _fdata, _edata, _end;
+extern char __init_begin, __init_end;
+
+void __init mem_init(void)
+{
+ int codesize, reservedpages, datasize, initsize;
+ int tmp;
+
+ max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN;
+ high_memory = (void *)__va(MAX_LOW_PFN * PAGE_SIZE);
+
+ /* free up the memory associated with Adam2 -
+ * that is the, after the first page that is
+ * reserved all the way up to the start of the kernel
+ */
+ free_bootmem_node(NODE_DATA(0), (__MEMORY_START+PAGE_SIZE),
+ (__pa(&_ftext))-(__MEMORY_START+PAGE_SIZE) );
+
+ /* this will put all low memory onto the freelists */
+ totalram_pages += free_all_bootmem_node(NODE_DATA(0));
+
+ /* Setup zeroed pages */
+ totalram_pages -= setup_zero_pages();
+
+
+#ifdef CONFIG_DISCONTIGMEM
+ totalram_pages += free_all_bootmem_node(NODE_DATA(1));
+#endif
+ reservedpages = 0;
+ for (tmp = 0; tmp < num_physpages; tmp++)
+ /*
+ * Only count reserved RAM pages
+ */
+ if (PageReserved(mem_map+tmp))
+ reservedpages++;
+
+ codesize = (unsigned long) &_etext - (unsigned long) &_ftext;
+ datasize = (unsigned long) &_edata - (unsigned long) &_fdata;
+ initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
+
+ printk("Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
+ (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
+ max_mapnr << (PAGE_SHIFT-10),
+ codesize >> 10,
+ reservedpages << (PAGE_SHIFT-10),
+ datasize >> 10,
+ initsize >> 10);
+
+}
+
+/* fixes paging routines for avalanche (utilized in /arch/mips/kernel/setup.c) */
+
+void avalanche_bootmem_init(void)
+{
+ unsigned long start_pfn, max_pfn;
+ unsigned long max_low_pfn;
+ unsigned int memsize,memory_end,memory_start;
+ char *memsize_str;
+
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str) {
+ memsize = 0x02000000;
+ } else {
+ memsize = simple_strtol(memsize_str, NULL, 0);
+ }
+
+
+ memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
+ memory_end = memory_start + memsize;
+
+ /*
+ * Find the highest memory page fram number we have available
+ */
+
+ max_pfn = PFN_DOWN(__pa(memory_end));
+
+ /*
+ * Determine the low and high memory ranges
+ */
+
+ max_low_pfn = max_pfn;
+
+ /*
+ * Partially used pages are not usable - thus we are
+ * rounding upwards:
+ */
+
+ start_pfn = PFN_UP(__pa(&_end));
+
+ /*
+ * Find a proper area for the bootmem bitmap. After this
+ * bootstrap step all allocations (until the page allocator is
+ * intact) must be done via bootmem_alloc().
+ */
+
+ bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
+ __MEMORY_START>>PAGE_SHIFT, max_low_pfn);
+
+
+ /*
+ * Register fully available low RAM pages with the bootmem allocator.
+ */
+
+ {
+ unsigned long curr_pfn, last_pfn, pages;
+
+ /*
+ * We are rounding up the start address of usable memory:
+ */
+ curr_pfn = PFN_UP(__MEMORY_START);
+
+ /*
+ * ... and at the end of the usable range downwards:
+ */
+ last_pfn = PFN_DOWN(__pa(memory_end));
+
+ if (last_pfn > max_low_pfn)
+ last_pfn = max_low_pfn;
+
+ pages = last_pfn - curr_pfn;
+
+
+ free_bootmem_node(NODE_DATA(0), PFN_PHYS(curr_pfn),
+ PFN_PHYS(pages));
+ }
+
+ /*
+ * Reserve the kernel text and
+ * Reserve the bootmem bitmap. We do this in two steps (first step
+ * was init_bootmem()), because this catches the (definitely buggy)
+ * case of us accidentally initializing the bootmem allocator with
+ * an invalid RAM area.
+ */
+ reserve_bootmem_node(NODE_DATA(0), __MEMORY_START+PAGE_SIZE,
+ (PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
+
+ /*
+ * reserve physical page 0 - it's a special BIOS page on many boxes,
+ * enabling clean reboots, SMP operation, laptop functions.
+ */
+ reserve_bootmem_node(NODE_DATA(0), __MEMORY_START, PAGE_SIZE);
+}
+
+extern char __init_begin, __init_end;
+
+void free_initmem(void)
+{
+ unsigned long addr;
+ // prom_free_prom_memory ();
+
+ addr = (unsigned long) &__init_begin;
+ while (addr < (unsigned long) &__init_end) {
+ ClearPageReserved(virt_to_page(addr));
+ set_page_count(virt_to_page(addr), 1);
+ free_page(addr);
+ totalram_pages++;
+ addr += PAGE_SIZE;
+ }
+ printk("Freeing unused kernel memory: %dk freed\n",
+ (&__init_end - &__init_begin) >> 10);
+}
+
+void si_meminfo(struct sysinfo *val)
+{
+ val->totalram = totalram_pages;
+ val->sharedram = 0;
+ val->freeram = nr_free_pages();
+ val->bufferram = atomic_read(&buffermem_pages);
+ val->totalhigh = 0;
+ val->freehigh = nr_free_highpages();
+ val->mem_unit = PAGE_SIZE;
+
+ return;
+}
diff -urN kernel-base/arch/mips/ar7/ar7/Makefile kernel-tmp2/arch/mips/ar7/ar7/Makefile
--- kernel-base/arch/mips/ar7/ar7/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/ar7/Makefile 2005-07-10 06:40:39.583267016 +0200
@@ -0,0 +1,30 @@
+# $Id$
+# Copyright (C) $Date$ $Author$
+#
+# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+.S.s:
+ $(CPP) $(AFLAGS) $< -o $*.s
+
+.S.o:
+ $(CC) $(AFLAGS) -c $< -o $*.o
+
+EXTRA_CFLAGS := -DLITTLE_ENDIAN -D_LINK_KSEG0_
+
+O_TARGET := ar7.o
+
+obj-y += ar7_paging.o ar7_jump.o
+
+include $(TOPDIR)/Rules.make
diff -urN kernel-base/arch/mips/ar7/cmdline.c kernel-tmp2/arch/mips/ar7/cmdline.c
--- kernel-base/arch/mips/ar7/cmdline.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/cmdline.c 2005-07-10 06:40:39.584266864 +0200
@@ -0,0 +1,64 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * Kernel command line creation using the prom monitor (YAMON) argc/argv.
+ */
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+
+extern int prom_argc;
+extern int *_prom_argv;
+
+/*
+ * YAMON (32-bit PROM) pass arguments and environment as 32-bit pointer.
+ * This macro take care of sign extension.
+ */
+#define prom_argv(index) ((char *)(((int *)(int)_prom_argv)[(index)]))
+
+char arcs_cmdline[CL_SIZE];
+
+char * __init prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
+
+
+void __init prom_init_cmdline(void)
+{
+ char *cp;
+ int actr;
+
+ actr = 1; /* Always ignore argv[0] */
+
+ cp = &(arcs_cmdline[0]);
+#ifdef CONFIG_CMDLINE_BOOL
+ strcpy(cp, CONFIG_CMDLINE);
+ cp += strlen(CONFIG_CMDLINE);
+ *cp++ = ' ';
+#endif
+ while(actr < prom_argc) {
+ strcpy(cp, prom_argv(actr));
+ cp += strlen(prom_argv(actr));
+ *cp++ = ' ';
+ actr++;
+ }
+ if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
+ --cp;
+ *cp = '\0';
+}
diff -urN kernel-base/arch/mips/ar7/init.c kernel-tmp2/arch/mips/ar7/init.c
--- kernel-base/arch/mips/ar7/init.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/init.c 2005-07-10 06:40:39.584266864 +0200
@@ -0,0 +1,146 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * PROM library initialisation code.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+#include <asm/mips-boards/prom.h>
+#include <asm/mips-boards/generic.h>
+
+/* Environment variable */
+typedef struct {
+ char *name;
+ char *val;
+} t_env_var;
+
+int prom_argc;
+int *_prom_argv, *_prom_envp;
+
+/* max # of Adam2 environment variables */
+#define MAX_ENV_ENTRY 80
+
+static t_env_var local_envp[MAX_ENV_ENTRY];
+int init_debug = 0;
+
+char *prom_getenv(char *envname)
+{
+ /*
+ * Return a pointer to the given environment variable.
+ * In 64-bit mode: we're using 64-bit pointers, but all pointers
+ * in the PROM structures are only 32-bit, so we need some
+ * workarounds, if we are running in 64-bit mode.
+ */
+ int i, index=0;
+ t_env_var *env = (t_env_var *) local_envp;
+
+ i = strlen(envname);
+ while (env->name) {
+ if(strncmp(envname, env->name, i) == 0) {
+ return(env->val);
+ }
+ env++;
+ }
+
+ return NULL;
+}
+
+static inline unsigned char str2hexnum(unsigned char c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ return 0; /* foo */
+}
+
+static inline void str2eaddr(unsigned char *ea, unsigned char *str)
+{
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ unsigned char num;
+
+ if((*str == '.') || (*str == ':'))
+ str++;
+ num = str2hexnum(*str++) << 4;
+ num |= (str2hexnum(*str++));
+ ea[i] = num;
+ }
+}
+
+int get_ethernet_addr(char *ethernet_addr)
+{
+ char *ethaddr_str;
+
+ ethaddr_str = prom_getenv("ethaddr");
+ if (!ethaddr_str) {
+ printk("ethaddr not set in boot prom\n");
+ return -1;
+ }
+ str2eaddr(ethernet_addr, ethaddr_str);
+
+ if (init_debug > 1) {
+ int i;
+ printk("get_ethernet_addr: ");
+ for (i=0; i<5; i++)
+ printk("%02x:", (unsigned char)*(ethernet_addr+i));
+ printk("%02x\n", *(ethernet_addr+i));
+ }
+
+ return 0;
+}
+
+int __init prom_init(int argc, char **argv, char **envp)
+{
+ int i;
+ t_env_var *env = (t_env_var *) envp;
+
+ prom_argc = argc;
+ _prom_argv = (int *)argv;
+ _prom_envp = (int *)envp;
+
+ /* Copy what we need locally so we are not dependent on
+ * bootloader RAM. In Adam2, the environment parameters
+ * are in flash but the table that references them is in
+ * RAM
+ */
+ for(i=0; i < MAX_ENV_ENTRY; i++, env++) {
+ if (env->name) {
+ local_envp[i].name = env->name;
+ local_envp[i].val = env->val;
+ } else {
+ local_envp[i].name = NULL;
+ local_envp[i].val = NULL;
+ }
+ }
+
+ set_io_port_base(0);
+
+ prom_printf("\nLINUX started...\n");
+ prom_init_cmdline();
+ prom_meminit();
+
+ return 0;
+}
+
+EXPORT_SYMBOL(prom_getenv);
diff -urN kernel-base/arch/mips/ar7/irq.c kernel-tmp2/arch/mips/ar7/irq.c
--- kernel-base/arch/mips/ar7/irq.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/irq.c 2005-07-10 06:40:39.585266712 +0200
@@ -0,0 +1,664 @@
+/*
+ * Nitin Dhingra, iamnd@ti.com
+ * Copyright (C) 2002 Texas Instruments, Inc. All rights reserved.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * Routines for generic manipulation of the interrupts found on the Texas
+ * Instruments avalanche board
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/proc_fs.h>
+#include <asm/irq.h>
+#include <asm/mips-boards/prom.h>
+#include <asm/ar7/ar7.h>
+#include <asm/ar7/avalanche_intc.h>
+#include <asm/gdb-stub.h>
+
+
+#define shutdown_avalanche_irq disable_avalanche_irq
+#define mask_and_ack_avalanche_irq disable_avalanche_irq
+
+static unsigned int startup_avalanche_irq(unsigned int irq);
+static void end_avalanche_irq(unsigned int irq);
+void enable_avalanche_irq(unsigned int irq_nr);
+void disable_avalanche_irq(unsigned int irq_nr);
+
+static struct hw_interrupt_type avalanche_irq_type = {
+ "TI AVALANCHE",
+ startup_avalanche_irq,
+ shutdown_avalanche_irq,
+ enable_avalanche_irq,
+ disable_avalanche_irq,
+ mask_and_ack_avalanche_irq,
+ end_avalanche_irq,
+ NULL
+};
+
+irq_desc_t irq_desc_ti[AVALANCHE_INT_END+1] __cacheline_aligned =
+{ [0 ... AVALANCHE_INT_END] = { 0, &avalanche_irq_type, NULL, 0, SPIN_LOCK_UNLOCKED}};
+
+
+unsigned long spurious_count = 0;
+
+struct avalanche_ictrl_regs *avalanche_hw0_icregs; /* Interrupt control regs (primary) */
+struct avalanche_exctrl_regs *avalanche_hw0_ecregs; /* Exception control regs (secondary) */
+struct avalanche_ipace_regs *avalanche_hw0_ipaceregs;
+struct avalanche_channel_int_number *avalanche_hw0_chregs; /* Channel control registers */
+
+extern asmlinkage void mipsIRQ(void);
+
+
+/*
+ * The avalanche/MIPS interrupt line numbers are used to represent the
+ * interrupts within the irqaction arrays. The index notation is
+ * is as follows:
+ *
+ * 0-7 MIPS CPU Exceptions (HW/SW)
+ * 8-47 Primary Interrupts (Avalanche)
+ * 48-79 Secondary Interrupts (Avalanche)
+ *
+ */
+
+
+static struct irqaction *hw0_irq_action_primary[AVINTNUM(AVALANCHE_INT_END_PRIMARY)] =
+{
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+};
+
+static struct irqaction *hw0_irq_action_secondary[AVINTNUM(AVALANCHE_INT_END_SECONDARY)] =
+{
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+};
+
+/*
+ This remaps interrupts to exist on other channels than the default
+ channels. essentially we can use the line # as the index for this
+ array
+ */
+
+
+static unsigned long line_to_channel[AVINTNUM(AVALANCHE_INT_END_PRIMARY)];
+unsigned long uni_secondary_interrupt = 0;
+
+static struct irqaction r4ktimer_action = {
+ NULL, 0, 0, "R4000 timer/counter", NULL, NULL,
+};
+
+static struct irqaction *irq_action[8] = {
+ NULL, /* SW int 0 */
+ NULL, /* SW int 1 */
+ NULL, /* HW int 0 */
+ NULL,
+ NULL,
+ NULL, /* HW int 3 */
+ NULL, /* HW int 4 */
+ &r4ktimer_action /* HW int 5 */
+};
+
+static void end_avalanche_irq(unsigned int irq)
+{
+ if (!(irq_desc_ti[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+ enable_avalanche_irq(irq);
+}
+
+void disable_avalanche_irq(unsigned int irq_nr)
+{
+ unsigned long flags;
+ unsigned long chan_nr=0;
+ unsigned long int_bit=0;
+
+ if(irq_nr >= AVALANCHE_INT_END)
+ {
+ printk("whee, invalid irq_nr %d\n", irq_nr);
+ panic("IRQ, you lose...");
+ }
+
+ save_and_cli(flags);
+
+
+ if(irq_nr < MIPS_EXCEPTION_OFFSET)
+ {
+ /* disable mips exception */
+
+ int_bit = read_c0_status() & ~(1 << (8+irq_nr));
+ change_c0_status(ST0_IM,int_bit);
+ restore_flags(flags);
+ return;
+ }
+
+ /* irq_nr represents the line number for the interrupt. We must
+ * disable the channel number associated with that line number.
+ */
+
+ if(irq_nr > AVALANCHE_INT_END_PRIMARY_REG2)
+ chan_nr = AVINTNUM(irq_nr); /*CHECK THIS ALSO*/
+ else
+ chan_nr = line_to_channel[AVINTNUM(irq_nr)];/* WE NEED A LINE TO CHANNEL MAPPING FUNCTION HERE*/
+
+ /* disable the interrupt channel bit */
+
+ /* primary interrupt #'s 0-31 */
+
+ if(chan_nr <= AVINTNUM(AVALANCHE_INT_END_PRIMARY_REG1))
+ avalanche_hw0_icregs->intecr1 = (1 << chan_nr);
+
+ /* primary interrupt #'s 32-39 */
+
+ else if ((chan_nr <= AVINTNUM(AVALANCHE_INT_END_PRIMARY_REG2)) &&
+ (chan_nr > AVINTNUM(AVALANCHE_INT_END_PRIMARY_REG1)))
+ avalanche_hw0_icregs->intecr2 = (1 << (chan_nr - AVINTNUM(AVALANCHE_INT_END_SECONDARY)));
+
+ else /* secondary interrupt #'s 0-31 */
+ avalanche_hw0_ecregs->exiecr = (1 << (chan_nr - AVINTNUM(AVALANCHE_INT_END_PRIMARY)));
+
+ restore_flags(flags);
+}
+
+void enable_avalanche_irq(unsigned int irq_nr)
+{
+ unsigned long flags;
+ unsigned long chan_nr=0;
+ unsigned long int_bit=0;
+
+ if(irq_nr > AVALANCHE_INT_END) {
+ printk("whee, invalid irq_nr %d\n", irq_nr);
+ panic("IRQ, you lose...");
+ }
+
+ save_and_cli(flags);
+
+
+ if(irq_nr < MIPS_EXCEPTION_OFFSET)
+ {
+ /* Enable MIPS exceptions */
+ int_bit = read_c0_status();
+ change_c0_status(ST0_IM,int_bit | (1<<(8+irq_nr)));
+ restore_flags(flags);
+ return;
+ }
+
+ /* irq_nr represents the line number for the interrupt. We must
+ * disable the channel number associated with that line number.
+ */
+
+ if(irq_nr > AVALANCHE_INT_END_PRIMARY_REG2)
+ chan_nr = AVINTNUM(irq_nr);
+ else
+ chan_nr = line_to_channel[AVINTNUM(irq_nr)];
+
+ /* enable the interrupt channel bit */
+
+ /* primary interrupt #'s 0-31 */
+ if(chan_nr <= AVINTNUM(AVALANCHE_INT_END_PRIMARY_REG1))
+ avalanche_hw0_icregs->intesr1 = (1 << chan_nr);
+
+ /* primary interrupt #'s 32 throuth 39 */
+ else if ((chan_nr <= AVINTNUM(AVALANCHE_INT_END_PRIMARY_REG2)) &&
+ (chan_nr > AVINTNUM(AVALANCHE_INT_END_PRIMARY_REG1)))
+ avalanche_hw0_icregs->intesr2 = (1 << (chan_nr - AVINTNUM(AVALANCHE_INT_END_SECONDARY)));
+
+ else /* secondary interrupt #'s 0-31 */
+ avalanche_hw0_ecregs->exiesr = (1 << (chan_nr - AVINTNUM(AVALANCHE_INT_END_PRIMARY)));
+
+ restore_flags(flags);
+}
+
+static unsigned int startup_avalanche_irq(unsigned int irq)
+{
+ enable_avalanche_irq(irq);
+ return 0; /* never anything pending */
+}
+
+
+int get_irq_list(char *buf)
+{
+ int i, len = 0;
+ int num = 0;
+ struct irqaction *action;
+
+ for (i = 0; i < MIPS_EXCEPTION_OFFSET; i++, num++)
+ {
+ action = irq_action[i];
+ if (!action)
+ continue;
+ len += sprintf(buf+len, "%2d: %8d %c %s",
+ num, kstat.irqs[0][num],
+ (action->flags & SA_INTERRUPT) ? '+' : ' ',
+ action->name);
+ for (action=action->next; action; action = action->next) {
+ len += sprintf(buf+len, ",%s %s",
+ (action->flags & SA_INTERRUPT) ? " +" : "",
+ action->name);
+ }
+ len += sprintf(buf+len, " [MIPS interrupt]\n");
+ }
+
+
+ for (i = 0; i < AVINTNUM(AVALANCHE_INT_END); i++,num++)
+ {
+ if(i < AVINTNUM(AVALANCHE_INT_END_PRIMARY))
+ action = hw0_irq_action_primary[i];
+ else
+ action = hw0_irq_action_secondary[i-AVINTNUM(AVALANCHE_INT_END_PRIMARY)];
+ if (!action)
+ continue;
+ len += sprintf(buf+len, "%2d: %8d %c %s",
+ num, kstat.irqs[0][ LNXINTNUM(i) ],
+ (action->flags & SA_INTERRUPT) ? '+' : ' ',
+ action->name);
+
+ for (action=action->next; action; action = action->next)
+ {
+ len += sprintf(buf+len, ",%s %s",
+ (action->flags & SA_INTERRUPT) ? " +" : "",
+ action->name);
+ }
+
+ if(i < AVINTNUM(AVALANCHE_INT_END_PRIMARY))
+ len += sprintf(buf+len, " [hw0 (Avalanche Primary)]\n");
+ else
+ len += sprintf(buf+len, " [hw0 (Avalanche Secondary)]\n");
+
+ }
+
+ return len;
+}
+
+int request_irq(unsigned int irq,
+ void (*handler)(int, void *, struct pt_regs *),
+ unsigned long irqflags,
+ const char * devname,
+ void *dev_id)
+{
+ struct irqaction *action;
+
+ if (irq > AVALANCHE_INT_END)
+ return -EINVAL;
+ if (!handler)
+ return -EINVAL;
+
+ action = (struct irqaction *)kmalloc(sizeof(struct irqaction), GFP_KERNEL);
+ if(!action)
+ return -ENOMEM;
+
+ action->handler = handler;
+ action->flags = irqflags;
+ action->mask = 0;
+ action->name = devname;
+ irq_desc_ti[irq].action = action;
+ action->dev_id = dev_id;
+
+ action->next = 0;
+
+ if(irq < MIPS_EXCEPTION_OFFSET)
+ {
+ irq_action[irq] = action;
+ enable_avalanche_irq(irq);
+ return 0;
+ }
+
+ if(irq < AVALANCHE_INT_END_PRIMARY)
+ hw0_irq_action_primary[line_to_channel[AVINTNUM(irq)]] = action;
+ else
+ hw0_irq_action_secondary[irq - AVALANCHE_INT_END_PRIMARY] = action;
+
+ enable_avalanche_irq(irq);
+
+ return 0;
+}
+
+void free_irq(unsigned int irq, void *dev_id)
+{
+ struct irqaction *action;
+
+ if (irq > AVALANCHE_INT_END) {
+ printk("Trying to free IRQ%d\n",irq);
+ return;
+ }
+
+ if(irq < MIPS_EXCEPTION_OFFSET)
+ {
+ action = irq_action[irq];
+ irq_action[irq] = NULL;
+ irq_desc_ti[irq].action = NULL;
+ disable_avalanche_irq(irq);
+ kfree(action);
+ return;
+ }
+
+ if(irq < AVALANCHE_INT_END_PRIMARY) {
+ action = hw0_irq_action_primary[line_to_channel[AVINTNUM(irq)]];
+ hw0_irq_action_primary[line_to_channel[AVINTNUM(irq)]] = NULL;
+ irq_desc_ti[irq].action = NULL;
+ }
+ else {
+ action = hw0_irq_action_secondary[irq - AVALANCHE_INT_END_PRIMARY];
+ hw0_irq_action_secondary[irq - AVALANCHE_INT_END_PRIMARY] = NULL;
+ irq_desc_ti[irq].action = NULL;
+ }
+
+ disable_avalanche_irq(irq);
+ kfree(action);
+}
+
+#ifdef CONFIG_KGDB
+extern void breakpoint(void);
+extern int remote_debug;
+#endif
+
+//void init_IRQ(void) __init;
+void __init init_IRQ(void)
+{
+ int i;
+
+ avalanche_hw0_icregs = (struct avalanche_ictrl_regs *)AVALANCHE_ICTRL_REGS_BASE;
+ avalanche_hw0_ecregs = (struct avalanche_exctrl_regs *)AVALANCHE_ECTRL_REGS_BASE;
+ avalanche_hw0_ipaceregs = (struct avalanche_ipace_regs *)AVALANCHE_IPACE_REGS_BASE;
+ avalanche_hw0_chregs = (struct avalanche_channel_int_number *)AVALANCHE_CHCTRL_REGS_BASE;
+
+ /* Disable interrupts and clear pending
+ */
+
+ avalanche_hw0_icregs->intecr1 = 0xffffffff; /* disable interrupts 0:31 */
+ avalanche_hw0_icregs->intcr1 = 0xffffffff; /* clear interrupts 0:31 */
+ avalanche_hw0_icregs->intecr2 = 0xff; /* disable interrupts 32:39 */
+ avalanche_hw0_icregs->intcr2 = 0xff; /* clear interrupts 32:39 */
+ avalanche_hw0_ecregs->exiecr = 0xffffffff; /* disable secondary interrupts 0:31 */
+ avalanche_hw0_ecregs->excr = 0xffffffff; /* clear secondary interrupts 0:31 */
+
+
+ /* Channel to line mapping, Line to Channel mapping */
+
+ for(i = 0; i < 40; i++)
+ avalanche_int_set(i,i);
+
+ /* Now safe to set the exception vector. */
+ set_except_vector(0, mipsIRQ);
+
+ /* Setup the IRQ description array. These will be mapped
+ * as flat interrupts numbers. The mapping is as follows
+ *
+ * 0-7 MIPS CPU Exceptions (HW/SW)
+ * 8-46 Primary Interrupts (Avalanche)
+ * 47-78 Secondary Interrupts (Avalanche)
+ */
+
+ for (i = 0; i <= AVALANCHE_INT_END; i++)
+ {
+ irq_desc_ti[i].status = IRQ_DISABLED;
+ irq_desc_ti[i].action = 0;
+ irq_desc_ti[i].depth = 1;
+ irq_desc_ti[i].handler = &avalanche_irq_type;
+ }
+
+#ifdef CONFIG_KGDB
+ if (remote_debug)
+ {
+ set_debug_traps();
+ breakpoint();
+ }
+#endif
+}
+
+
+void avalanche_hw0_irqdispatch(struct pt_regs *regs)
+{
+ struct irqaction *action;
+ int irq, cpu = smp_processor_id();
+ unsigned long int_line_number,status;
+ int i,secondary = 0;
+ int chan_nr=0;
+
+ int_line_number = ((avalanche_hw0_icregs->pintir >> 16) & 0x3F);
+ chan_nr = ((avalanche_hw0_icregs->pintir) & 0x3F);
+
+
+ if(chan_nr < 32)
+ {
+ if( chan_nr != uni_secondary_interrupt)
+ avalanche_hw0_icregs->intcr1 = (1<<chan_nr);
+
+ }
+
+ if((chan_nr < 40) && (chan_nr > 31))
+ {
+ avalanche_hw0_icregs->intcr2 = (1<<(chan_nr-AVINTNUM(AVALANCHE_INT_END_SECONDARY)));
+ }
+
+
+ /* If the Priority Interrupt Index Register returns 40 then no
+ * interrupts are pending
+ */
+
+ if(chan_nr == 40)
+ return;
+
+ if(chan_nr == uni_secondary_interrupt)
+ {
+ status = avalanche_hw0_ecregs->exsr;
+ for(i=0; i < AVINTNUM(AVALANCHE_INT_END_SECONDARY); i++)
+ {
+ if (status & 1<<i)
+ {
+ /* clear secondary interrupt */
+ avalanche_hw0_ecregs->excr = 1 << i;
+ break;
+ }
+ }
+ irq = i;
+ secondary = 1;
+
+ /* clear the universal secondary interrupt */
+ avalanche_hw0_icregs->intcr1 = 1 << uni_secondary_interrupt;
+
+ }
+ else
+ irq = chan_nr;
+
+ /* Suraj Add code to clear secondary interrupt */
+
+ if(secondary)
+ action = hw0_irq_action_secondary[irq];
+ else
+ action = hw0_irq_action_primary[irq];
+
+ /* if action == NULL, then we don't have a handler for the irq */
+
+ if ( action == NULL ) {
+ printk("No handler for hw0 irq: %i\n", irq);
+ return;
+ }
+
+ irq_enter(cpu,irq);
+ if(secondary)
+ {
+ kstat.irqs[0][(irq + AVINTNUM(AVALANCHE_INT_END_PRIMARY)) + 8]++;
+ action->handler((irq + AVALANCHE_INT_END_PRIMARY), action->dev_id, regs);
+ }
+ else
+ {
+ kstat.irqs[0][irq + 8]++;
+ action->handler(LNXINTNUM(irq), action->dev_id, regs);
+ }
+
+ irq_exit(cpu,irq);
+
+ if(softirq_pending(cpu))
+ do_softirq();
+
+ return;
+}
+
+void avalanche_int_set(int channel, int line)
+{
+ switch(channel)
+ {
+ case(0):
+ avalanche_hw0_chregs->cintnr0 = line;
+ break;
+ case(1):
+ avalanche_hw0_chregs->cintnr1 = line;
+ break;
+ case(2):
+ avalanche_hw0_chregs->cintnr2 = line;
+ break;
+ case(3):
+ avalanche_hw0_chregs->cintnr3 = line;
+ break;
+ case(4):
+ avalanche_hw0_chregs->cintnr4 = line;
+ break;
+ case(5):
+ avalanche_hw0_chregs->cintnr5 = line;
+ break;
+ case(6):
+ avalanche_hw0_chregs->cintnr6 = line;
+ break;
+ case(7):
+ avalanche_hw0_chregs->cintnr7 = line;
+ break;
+ case(8):
+ avalanche_hw0_chregs->cintnr8 = line;
+ break;
+ case(9):
+ avalanche_hw0_chregs->cintnr9 = line;
+ break;
+ case(10):
+ avalanche_hw0_chregs->cintnr10 = line;
+ break;
+ case(11):
+ avalanche_hw0_chregs->cintnr11 = line;
+ break;
+ case(12):
+ avalanche_hw0_chregs->cintnr12 = line;
+ break;
+ case(13):
+ avalanche_hw0_chregs->cintnr13 = line;
+ break;
+ case(14):
+ avalanche_hw0_chregs->cintnr14 = line;
+ break;
+ case(15):
+ avalanche_hw0_chregs->cintnr15 = line;
+ break;
+ case(16):
+ avalanche_hw0_chregs->cintnr16 = line;
+ break;
+ case(17):
+ avalanche_hw0_chregs->cintnr17 = line;
+ break;
+ case(18):
+ avalanche_hw0_chregs->cintnr18 = line;
+ break;
+ case(19):
+ avalanche_hw0_chregs->cintnr19 = line;
+ break;
+ case(20):
+ avalanche_hw0_chregs->cintnr20 = line;
+ break;
+ case(21):
+ avalanche_hw0_chregs->cintnr21 = line;
+ break;
+ case(22):
+ avalanche_hw0_chregs->cintnr22 = line;
+ break;
+ case(23):
+ avalanche_hw0_chregs->cintnr23 = line;
+ break;
+ case(24):
+ avalanche_hw0_chregs->cintnr24 = line;
+ break;
+ case(25):
+ avalanche_hw0_chregs->cintnr25 = line;
+ break;
+ case(26):
+ avalanche_hw0_chregs->cintnr26 = line;
+ break;
+ case(27):
+ avalanche_hw0_chregs->cintnr27 = line;
+ break;
+ case(28):
+ avalanche_hw0_chregs->cintnr28 = line;
+ break;
+ case(29):
+ avalanche_hw0_chregs->cintnr29 = line;
+ break;
+ case(30):
+ avalanche_hw0_chregs->cintnr30 = line;
+ break;
+ case(31):
+ avalanche_hw0_chregs->cintnr31 = line;
+ break;
+ case(32):
+ avalanche_hw0_chregs->cintnr32 = line;
+ break;
+ case(33):
+ avalanche_hw0_chregs->cintnr33 = line;
+ break;
+ case(34):
+ avalanche_hw0_chregs->cintnr34 = line;
+ break;
+ case(35):
+ avalanche_hw0_chregs->cintnr35 = line;
+ break;
+ case(36):
+ avalanche_hw0_chregs->cintnr36 = line;
+ break;
+ case(37):
+ avalanche_hw0_chregs->cintnr37 = line;
+ break;
+ case(38):
+ avalanche_hw0_chregs->cintnr38 = line;
+ break;
+ case(39):
+ avalanche_hw0_chregs->cintnr39 = line;
+ break;
+ default:
+ printk("Error: Unknown Avalanche interrupt channel\n");
+ }
+
+ line_to_channel[line] = channel; /* Suraj check */
+
+ if (channel == UNIFIED_SECONDARY_INTERRUPT)
+ uni_secondary_interrupt = line;
+
+}
diff -urN kernel-base/arch/mips/ar7/Makefile kernel-tmp2/arch/mips/ar7/Makefile
--- kernel-base/arch/mips/ar7/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/Makefile 2005-07-10 06:40:39.586266560 +0200
@@ -0,0 +1,29 @@
+# $Id$
+# Copyright (C) $Date$ $Author$
+#
+# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+.S.s:
+ $(CPP) $(AFLAGS) $< -o $*.s
+
+.S.o:
+ $(CC) $(AFLAGS) -c $< -o $*.o
+
+O_TARGET := ar7.o
+
+export-objs := init.o
+obj-y := setup.o irq.o mipsIRQ.o reset.o init.o memory.o printf.o cmdline.o time.o
+
+include $(TOPDIR)/Rules.make
diff -urN kernel-base/arch/mips/ar7/memory.c kernel-tmp2/arch/mips/ar7/memory.c
--- kernel-base/arch/mips/ar7/memory.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/memory.c 2005-07-10 06:40:39.586266560 +0200
@@ -0,0 +1,130 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * PROM library functions for acquiring/using memory descriptors given to
+ * us from the YAMON.
+ *
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+
+#include <asm/bootinfo.h>
+#include <asm/page.h>
+#include <asm/mips-boards/prom.h>
+#include <asm/ar7/ar7.h>
+
+enum yamon_memtypes {
+ yamon_dontuse,
+ yamon_prom,
+ yamon_free,
+};
+struct prom_pmemblock mdesc[PROM_MAX_PMEMBLOCKS];
+
+/* References to section boundaries */
+extern char _end;
+
+#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
+
+
+struct prom_pmemblock * __init prom_getmdesc(void)
+{
+ char *memsize_str;
+ unsigned int memsize;
+
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str) {
+ memsize = 0x02000000;
+ } else {
+ memsize = simple_strtol(memsize_str, NULL, 0);
+ }
+
+ memset(mdesc, 0, sizeof(mdesc));
+
+ mdesc[0].type = yamon_dontuse;
+ mdesc[0].base = 0x00000000;
+ mdesc[0].size = CONFIG_AR7_MEMORY;
+
+ mdesc[1].type = yamon_prom;
+ mdesc[1].base = CONFIG_AR7_MEMORY;
+ mdesc[1].size = 0x00020000;
+
+ mdesc[2].type = yamon_free;
+ mdesc[2].base = CONFIG_AR7_MEMORY + 0x00020000;
+ mdesc[2].size = (memsize + CONFIG_AR7_MEMORY) - mdesc[2].base;
+
+ return &mdesc[0];
+}
+
+static int __init prom_memtype_classify (unsigned int type)
+{
+ switch (type) {
+ case yamon_free:
+ return BOOT_MEM_RAM;
+ case yamon_prom:
+ return BOOT_MEM_ROM_DATA;
+ default:
+ return BOOT_MEM_RESERVED;
+ }
+}
+
+void __init prom_meminit(void)
+{
+ struct prom_pmemblock *p;
+
+ p = prom_getmdesc();
+
+ while (p->size) {
+ long type;
+ unsigned long base, size;
+
+ type = prom_memtype_classify (p->type);
+ base = p->base;
+ size = p->size;
+
+ add_memory_region(base, size, type);
+ p++;
+ }
+}
+
+void __init prom_free_prom_memory (void)
+{
+ int i;
+ unsigned long freed = 0;
+ unsigned long addr;
+
+ for (i = 0; i < boot_mem_map.nr_map; i++) {
+ if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
+ continue;
+
+ addr = boot_mem_map.map[i].addr;
+ while (addr < boot_mem_map.map[i].addr
+ + boot_mem_map.map[i].size) {
+ ClearPageReserved(virt_to_page(__va(addr)));
+ set_page_count(virt_to_page(__va(addr)), 1);
+ free_page((unsigned long)__va(addr));
+ addr += PAGE_SIZE;
+ freed += PAGE_SIZE;
+ }
+ }
+ printk("Freeing prom memory: %ldkb freed\n", freed >> 10);
+}
diff -urN kernel-base/arch/mips/ar7/mipsIRQ.S kernel-tmp2/arch/mips/ar7/mipsIRQ.S
--- kernel-base/arch/mips/ar7/mipsIRQ.S 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/mipsIRQ.S 2005-07-10 06:40:39.587266408 +0200
@@ -0,0 +1,120 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999, 2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * Interrupt exception dispatch code.
+ *
+ */
+#include <linux/config.h>
+
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+
+/* A lot of complication here is taken away because:
+ *
+ * 1) We handle one interrupt and return, sitting in a loop and moving across
+ * all the pending IRQ bits in the cause register is _NOT_ the answer, the
+ * common case is one pending IRQ so optimize in that direction.
+ *
+ * 2) We need not check against bits in the status register IRQ mask, that
+ * would make this routine slow as hell.
+ *
+ * 3) Linux only thinks in terms of all IRQs on or all IRQs off, nothing in
+ * between like BSD spl() brain-damage.
+ *
+ * Furthermore, the IRQs on the MIPS board look basically (barring software
+ * IRQs which we don't use at all and all external interrupt sources are
+ * combined together on hardware interrupt 0 (MIPS IRQ 2)) like:
+ *
+ * MIPS IRQ Source
+ * -------- ------
+ * 0 Software (ignored)
+ * 1 Software (ignored)
+ * 2 Combined hardware interrupt (hw0)
+ * 3 Hardware (ignored)
+ * 4 Hardware (ignored)
+ * 5 Hardware (ignored)
+ * 6 Hardware (ignored)
+ * 7 R4k timer (what we use)
+ *
+ * Note: On the SEAD board thing are a little bit different.
+ * Here IRQ 2 (hw0) is wired to the UART0 and IRQ 3 (hw1) is wired
+ * wired to UART1.
+ *
+ * We handle the IRQ according to _our_ priority which is:
+ *
+ * Highest ---- R4k Timer
+ * Lowest ---- Combined hardware interrupt
+ *
+ * then we just return, if multiple IRQs are pending then we will just take
+ * another exception, big deal.
+ */
+
+.text
+.set noreorder
+.set noat
+ .align 5
+NESTED(mipsIRQ, PT_SIZE, sp)
+ SAVE_ALL
+ CLI
+ .set at
+
+ mfc0 s0, CP0_CAUSE # get irq bits
+
+ /* First we check for r4k counter/timer IRQ. */
+ andi a0, s0, CAUSEF_IP7
+ beq a0, zero, 1f
+ andi a0, s0, CAUSEF_IP2 # delay slot, check hw0 interrupt
+
+ /* Wheee, a timer interrupt. */
+ move a0, sp
+ jal ar7_timer_interrupt
+ nop
+
+ j ret_from_irq
+ nop
+
+ 1:
+ beq a0, zero, 1f # delay slot, check hw3 interrupt
+ nop
+
+ /* Wheee, combined hardware level zero interrupt. */
+ jal avalanche_hw0_irqdispatch
+ move a0, sp # delay slot
+
+ j ret_from_irq
+ nop # delay slot
+
+ 1:
+ /*
+ * Here by mistake? This is possible, what can happen is that by the
+ * time we take the exception the IRQ pin goes low, so just leave if
+ * this is the case.
+ */
+ move a1,s0
+ PRINT("Got interrupt: c0_cause = %08x\n")
+ mfc0 a1, CP0_EPC
+ PRINT("c0_epc = %08x\n")
+
+ j ret_from_irq
+ nop
+END(mipsIRQ)
diff -urN kernel-base/arch/mips/ar7/printf.c kernel-tmp2/arch/mips/ar7/printf.c
--- kernel-base/arch/mips/ar7/printf.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/printf.c 2005-07-10 06:40:39.587266408 +0200
@@ -0,0 +1,54 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * Putting things on the screen/serial line using Adam2 facilities.
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/serial_reg.h>
+#include <linux/spinlock.h>
+#include <asm/io.h>
+#include <asm/serial.h>
+#include <asm/addrspace.h>
+#include <asm/ar7/ar7.h>
+
+#define AVALANCHE_YAMON_FUNCTION_BASE (KSEG1ADDR(0x10000500))
+#define AVALANCHE_YAMON_PROM_PRINT_COUNT_ADDR (AVALANCHE_YAMON_FUNCTION_BASE + 0x4) /* print_count function */
+
+static char ppbuf[1024];
+
+void (*prom_print_str)(unsigned int out, char *s, int len);
+
+void prom_printf(char *fmt, ...) __init;
+void prom_printf(char *fmt, ...)
+{
+ va_list args;
+ int len;
+ prom_print_str = (void *)*(unsigned int *)AVALANCHE_YAMON_PROM_PRINT_COUNT_ADDR;
+
+ va_start(args, fmt);
+ vsprintf(ppbuf, fmt, args);
+ len = strlen(ppbuf);
+
+ prom_print_str(1, ppbuf, len);
+
+ va_end(args);
+ return;
+
+}
diff -urN kernel-base/arch/mips/ar7/reset.c kernel-tmp2/arch/mips/ar7/reset.c
--- kernel-base/arch/mips/ar7/reset.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/reset.c 2005-07-10 06:40:39.587266408 +0200
@@ -0,0 +1,54 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * Reset the MIPS boards.
+ *
+ */
+#include <linux/config.h>
+
+#include <asm/reboot.h>
+#include <asm/mips-boards/generic.h>
+
+static void ar7_machine_restart(char *command);
+static void ar7_machine_halt(void);
+static void ar7_machine_power_off(void);
+
+static void ar7_machine_restart(char *command)
+{
+
+}
+
+static void ar7_machine_halt(void)
+{
+
+}
+
+static void ar7_machine_power_off(void)
+{
+
+}
+
+void ar7_reboot_setup(void)
+{
+ _machine_restart = ar7_machine_restart;
+ _machine_halt = ar7_machine_halt;
+ _machine_power_off = ar7_machine_power_off;
+}
diff -urN kernel-base/arch/mips/ar7/setup.c kernel-tmp2/arch/mips/ar7/setup.c
--- kernel-base/arch/mips/ar7/setup.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/setup.c 2005-07-10 06:40:39.588266256 +0200
@@ -0,0 +1,120 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 <linux/config.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/mc146818rtc.h>
+#include <linux/ioport.h>
+
+#include <asm/cpu.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
+
+#include <asm/dma.h>
+#include <asm/time.h>
+#include <asm/traps.h>
+
+#ifdef CONFIG_KGDB
+extern void rs_kgdb_hook(int);
+int remote_debug = 0;
+#endif
+
+extern struct rtc_ops no_rtc_ops;
+
+extern void ar7_reboot_setup(void);
+
+extern void ar7_time_init(void);
+extern void ar7_timer_setup(struct irqaction *irq);
+
+const char *get_system_type(void)
+{
+ return "Texas Instruments AR7";
+}
+
+void __init ar7_setup(void)
+{
+#ifdef CONFIG_KGDB
+ int rs_putDebugChar(char);
+ char rs_getDebugChar(void);
+ extern int (*generic_putDebugChar)(char);
+ extern char (*generic_getDebugChar)(void);
+#endif
+ char *argptr;
+#ifdef CONFIG_SERIAL_CONSOLE
+ argptr = prom_getcmdline();
+ if ((argptr = strstr(argptr, "console=")) == NULL) {
+ char console[20];
+ char *s;
+ int i = 0;
+
+ s = prom_getenv("modetty0");
+ strcpy(console, "38400");
+
+ if (s != NULL) {
+ while (s[i] >= '0' && s[i] <= '9')
+ i++;
+
+ if (i > 0) {
+ strncpy(console, s, i);
+ console[i] = 0;
+ }
+ }
+
+ argptr = prom_getcmdline();
+ strcat(argptr, " console=ttyS0,");
+ strcat(argptr, console);
+ }
+#endif
+
+#ifdef CONFIG_KGDB
+ argptr = prom_getcmdline();
+ if ((argptr = strstr(argptr, "kgdb=ttyS")) != NULL) {
+ int line;
+ argptr += strlen("kgdb=ttyS");
+ if (*argptr != '0' && *argptr != '1')
+ printk("KGDB: Uknown serial line /dev/ttyS%c, "
+ "falling back to /dev/ttyS1\n", *argptr);
+ line = *argptr == '0' ? 0 : 1;
+ printk("KGDB: Using serial line /dev/ttyS%d for session\n",
+ line ? 1 : 0);
+
+ rs_kgdb_hook(line);
+ generic_putDebugChar = rs_putDebugChar;
+ generic_getDebugChar = rs_getDebugChar;
+
+ prom_printf("KGDB: Using serial line /dev/ttyS%d for session, "
+ "please connect your debugger\n", line ? 1 : 0);
+
+ remote_debug = 1;
+ /* Breakpoints are in init_IRQ() */
+ }
+#endif
+
+ argptr = prom_getcmdline();
+ if ((argptr = strstr(argptr, "nofpu")) != NULL)
+ cpu_data[0].options &= ~MIPS_CPU_FPU;
+
+ rtc_ops = &no_rtc_ops;
+
+ ar7_reboot_setup();
+
+ board_time_init = ar7_time_init;
+ board_timer_setup = ar7_timer_setup;
+}
diff -urN kernel-base/arch/mips/ar7/time.c kernel-tmp2/arch/mips/ar7/time.c
--- kernel-base/arch/mips/ar7/time.c 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/arch/mips/ar7/time.c 2005-07-10 06:40:39.588266256 +0200
@@ -0,0 +1,125 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * Setting up the clock on the MIPS boards.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+
+#include <asm/mipsregs.h>
+#include <asm/ptrace.h>
+#include <asm/hardirq.h>
+#include <asm/div64.h>
+
+#include <linux/interrupt.h>
+#include <linux/mc146818rtc.h>
+#include <linux/timex.h>
+
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
+#include <asm/ar7/ar7.h>
+
+extern asmlinkage void mipsIRQ(void);
+
+static unsigned long r4k_offset; /* Amount to increment compare reg each time */
+static unsigned long r4k_cur; /* What counter should be at next timer irq */
+
+#define MIPS_CPU_TIMER_IRQ 7
+#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
+
+static inline void ack_r4ktimer(unsigned long newval)
+{
+ write_c0_compare(newval);
+}
+
+void ar7_timer_interrupt(struct pt_regs *regs)
+{
+ int cpu = smp_processor_id();
+
+ irq_enter(cpu, MIPS_CPU_TIMER_IRQ);
+
+ if (r4k_offset == 0)
+ goto null;
+
+ do {
+ kstat.irqs[cpu][MIPS_CPU_TIMER_IRQ]++;
+ do_timer(regs);
+ r4k_cur += r4k_offset;
+ ack_r4ktimer(r4k_cur);
+
+ } while (((unsigned long)read_c0_count()
+ - r4k_cur) < 0x7fffffff);
+
+ irq_exit(cpu, MIPS_CPU_TIMER_IRQ);
+
+ if (softirq_pending(cpu))
+ do_softirq();
+
+ return;
+
+null:
+ ack_r4ktimer(0);
+}
+
+/*
+ * Figure out the r4k offset, the amount to increment the compare
+ * register for each time tick.
+ */
+static unsigned long __init cal_r4koff(void)
+{
+ return ((CONFIG_AR7_CPU_FREQUENCY*500000)/HZ);
+}
+
+void __init ar7_time_init(void)
+{
+ unsigned long flags;
+ unsigned int est_freq;
+
+ set_except_vector(0, mipsIRQ);
+ write_c0_count(0);
+
+ printk("calculating r4koff... ");
+ r4k_offset = cal_r4koff();
+ printk("%08lx(%d)\n", r4k_offset, (int) r4k_offset);
+
+ est_freq = 2*r4k_offset*HZ;
+ est_freq += 5000; /* round */
+ est_freq -= est_freq%10000;
+ printk("CPU frequency %d.%02d MHz\n", est_freq/1000000,
+ (est_freq%1000000)*100/1000000);
+}
+
+void __init ar7_timer_setup(struct irqaction *irq)
+{
+ /* we are using the cpu counter for timer interrupts */
+ irq->handler = no_action; /* we use our own handler */
+ setup_irq(MIPS_CPU_TIMER_IRQ, irq);
+
+ r4k_cur = (read_c0_count() + r4k_offset);
+ write_c0_compare(r4k_cur);
+ set_c0_status(ALLINTS);
+}
diff -urN kernel-base/arch/mips/config-shared.in kernel-tmp2/arch/mips/config-shared.in
--- kernel-base/arch/mips/config-shared.in 2005-07-10 03:00:44.784181376 +0200
+++ kernel-tmp2/arch/mips/config-shared.in 2005-07-10 06:40:39.589266104 +0200
@@ -20,6 +20,16 @@
mainmenu_option next_comment
comment 'Machine selection'
dep_bool 'Support for Acer PICA 1 chipset (EXPERIMENTAL)' CONFIG_ACER_PICA_61 $CONFIG_EXPERIMENTAL
+dep_bool 'Support for Texas Instruments AR7 (EXPERIMENTAL)' CONFIG_AR7 $CONFIG_MIPS32 $CONFIG_EXPERIMENTAL
+if [ "$CONFIG_AR7" = "y" ]; then
+ choice 'Texas Instruments Reference Platform' \
+ "AR7DB CONFIG_AR7DB \
+ AR7RD CONFIG_AR7RD \
+ AR7WRD CONFIG_AR7WRD" AR7DB
+ int 'Texas Instruments AR7 CPU Frequency' CONFIG_AR7_CPU_FREQUENCY 150
+ int 'Texas Instruments AR7 System Frequency' CONFIG_AR7_SYS_FREQUENCY 125
+ hex 'Texas Instruments AR7 SDRAM Start' CONFIG_AR7_MEMORY 0x14000000
+fi
dep_bool 'Support for Alchemy Bosporus board' CONFIG_MIPS_BOSPORUS $CONFIG_MIPS32
dep_bool 'Support for FIC Multimedia Player board' CONFIG_MIPS_FICMMP $CONFIG_MIPS32
dep_bool 'Support for Alchemy Mirage board' CONFIG_MIPS_MIRAGE $CONFIG_MIPS32
@@ -239,6 +249,11 @@
define_bool CONFIG_NONCOHERENT_IO y
define_bool CONFIG_PC_KEYB y
fi
+if [ "$CONFIG_AR7" = "y" ]; then
+ define_bool CONFIG_NONCOHERENT_IO y
+ define_bool CONFIG_SWAP_IO_SPACE y
+ define_bool CONFIG_AR7_PAGING y
+fi
if [ "$CONFIG_CASIO_E55" = "y" ]; then
define_bool CONFIG_IRQ_CPU y
define_bool CONFIG_NONCOHERENT_IO y
@@ -736,6 +751,7 @@
mainmenu_option next_comment
comment 'General setup'
if [ "$CONFIG_ACER_PICA_61" = "y" -o \
+ "$CONFIG_AR7" = "y" -o \
"$CONFIG_CASIO_E55" = "y" -o \
"$CONFIG_DDB5074" = "y" -o \
"$CONFIG_DDB5476" = "y" -o \
@@ -797,6 +813,7 @@
bool 'Networking support' CONFIG_NET
if [ "$CONFIG_ACER_PICA_61" = "y" -o \
+ "$CONFIG_AR7" = "y" -o \
"$CONFIG_CASIO_E55" = "y" -o \
"$CONFIG_DECSTATION" = "y" -o \
"$CONFIG_IBM_WORKPAD" = "y" -o \
diff -urN kernel-base/arch/mips/kernel/irq.c kernel-tmp2/arch/mips/kernel/irq.c
--- kernel-base/arch/mips/kernel/irq.c 2005-07-10 03:00:44.784181376 +0200
+++ kernel-tmp2/arch/mips/kernel/irq.c 2005-07-10 06:40:39.589266104 +0200
@@ -76,6 +76,7 @@
* Generic, controller-independent functions:
*/
+#ifndef CONFIG_AR7
int get_irq_list(char *buf)
{
int i, j;
@@ -110,6 +111,7 @@
p += sprintf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
return p - buf;
}
+#endif
#ifdef CONFIG_SMP
int global_irq_holder = NO_PROC_ID;
@@ -525,6 +527,7 @@
*
*/
+#ifndef CONFIG_AR7
int request_irq(unsigned int irq,
void (*handler)(int, void *, struct pt_regs *),
unsigned long irqflags,
@@ -569,6 +572,7 @@
kfree(action);
return retval;
}
+#endif
/**
* free_irq - free an interrupt
@@ -588,6 +592,7 @@
* the machine.
*/
+#ifndef CONFIG_AR7
void free_irq(unsigned int irq, void *dev_id)
{
irq_desc_t *desc;
@@ -629,6 +634,7 @@
return;
}
}
+#endif
/*
* IRQ autodetection code..
diff -urN kernel-base/arch/mips/kernel/setup.c kernel-tmp2/arch/mips/kernel/setup.c
--- kernel-base/arch/mips/kernel/setup.c 2005-07-10 03:00:44.785181224 +0200
+++ kernel-tmp2/arch/mips/kernel/setup.c 2005-07-10 06:40:39.590265952 +0200
@@ -109,6 +109,7 @@
unsigned long isa_slot_offset;
EXPORT_SYMBOL(isa_slot_offset);
+extern void avalanche_bootmem_init(void);
extern void SetUpBootInfo(void);
extern void load_mmu(void);
extern asmlinkage void start_kernel(void);
@@ -267,6 +268,9 @@
#endif /* CONFIG_BLK_DEV_INITRD */
/* Find the highest page frame number we have available. */
+#ifdef CONFIG_AR7_PAGING
+ avalanche_bootmem_init();
+#else
max_pfn = 0;
first_usable_pfn = -1UL;
for (i = 0; i < boot_mem_map.nr_map; i++) {
@@ -377,6 +381,7 @@
/* Reserve the bootmap memory. */
reserve_bootmem(PFN_PHYS(first_usable_pfn), bootmap_size);
+#endif
#ifdef CONFIG_BLK_DEV_INITRD
/* Board specific code should have set up initrd_start and initrd_end */
ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
@@ -494,6 +499,7 @@
void hp_setup(void);
void au1x00_setup(void);
void frame_info_init(void);
+ void ar7_setup(void);
frame_info_init();
#if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_BLK_DEV_FD_MODULE)
@@ -691,6 +697,11 @@
pmc_yosemite_setup();
break;
#endif
+#ifdef CONFIG_AR7
+ case MACH_GROUP_UNKNOWN:
+ ar7_setup();
+ break;
+#endif
default:
panic("Unsupported architecture");
}
diff -urN kernel-base/arch/mips/kernel/traps.c kernel-tmp2/arch/mips/kernel/traps.c
--- kernel-base/arch/mips/kernel/traps.c 2005-07-10 03:00:44.786181072 +0200
+++ kernel-tmp2/arch/mips/kernel/traps.c 2005-07-10 06:40:39.591265800 +0200
@@ -40,6 +40,10 @@
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
+#ifdef CONFIG_AR7
+#include <asm/ar7/ar7.h>
+#endif
+
extern asmlinkage void handle_mod(void);
extern asmlinkage void handle_tlbl(void);
extern asmlinkage void handle_tlbs(void);
@@ -869,9 +873,15 @@
exception_handlers[n] = handler;
if (n == 0 && cpu_has_divec) {
+#ifdef CONFIG_AR7
+ *(volatile u32 *)(AVALANCHE_VECS_KSEG0+0x200) = 0x08000000 |
+ (0x03ffffff & (handler >> 2));
+ flush_icache_range(AVALANCHE_VECS_KSEG0+0x200, AVALANCHE_VECS_KSEG0 + 0x204);
+#else
*(volatile u32 *)(KSEG0+0x200) = 0x08000000 |
(0x03ffffff & (handler >> 2));
flush_icache_range(KSEG0+0x200, KSEG0 + 0x204);
+#endif
}
return (void *)old_handler;
}
@@ -920,14 +930,46 @@
void __init trap_init(void)
{
extern char except_vec1_generic;
+ extern char except_vec2_generic;
extern char except_vec3_generic, except_vec3_r4000;
extern char except_vec_ejtag_debug;
extern char except_vec4;
unsigned long i;
+#ifdef CONFIG_AR7
+ extern char jump_tlb_miss, jump_tlb_miss_unused;
+ extern char jump_cache_error,jump_general_exception;
+ extern char jump_dedicated_interrupt;
+ clear_c0_status(ST0_BEV);
+#endif
+
/* Copy the generic exception handler code to it's final destination. */
memcpy((void *)(KSEG0 + 0x80), &except_vec1_generic, 0x80);
+ memcpy((void *)(KSEG0 + 0x100), &except_vec2_generic, 0x80);
+ memcpy((void *)(KSEG0 + 0x180), &except_vec3_generic, 0x80);
+ memcpy((void *)(KSEG0 + 0x0), &jump_tlb_miss, 0x80);
+ memcpy((void *)(KSEG0 + 0x80), &jump_tlb_miss_unused, 0x80);
+ memcpy((void *)(KSEG0 + 0x100), &jump_cache_error, 0x80);
+ memcpy((void *)(KSEG0 + 0x180), &jump_general_exception, 0x80);
+ memcpy((void *)(KSEG0 + 0x200), &jump_dedicated_interrupt, 0x80);
+
+#ifdef CONFIG_AR7
+ memcpy((void *)(AVALANCHE_VECS_KSEG0 + 0x80), &except_vec1_generic, 0x80);
+ memcpy((void *)(AVALANCHE_VECS_KSEG0 + 0x100), &except_vec2_generic, 0x80);
+ memcpy((void *)(AVALANCHE_VECS_KSEG0 + 0x180), &except_vec3_generic, 0x80);
+ flush_icache_range(AVALANCHE_VECS_KSEG0, AVALANCHE_VECS_KSEG0 + 0x200);
+
+ memcpy((void *)(KSEG0 + 0x0), &jump_tlb_miss, 0x80);
+ memcpy((void *)(KSEG0 + 0x80), &jump_tlb_miss_unused, 0x80);
+ memcpy((void *)(KSEG0 + 0x100), &jump_cache_error, 0x80);
+ memcpy((void *)(KSEG0 + 0x180), &jump_general_exception, 0x80);
+ memcpy((void *)(KSEG0 + 0x200), &jump_dedicated_interrupt, 0x80);
+#else
+ memcpy((void *)(KSEG0 + 0x80), &except_vec1_generic, 0x80);
+#endif
+ flush_icache_range(KSEG0 + 0x80, KSEG0 + 0x200);
+
/*
* Setup default vectors
*/
@@ -951,8 +993,12 @@
* Some MIPS CPUs have a dedicated interrupt vector which reduces the
* interrupt processing overhead. Use it where available.
*/
+#ifdef CONFIG_AR7
+ memcpy((void *)(AVALANCHE_VECS_KSEG0 + 0x200), &except_vec4, 8);
+#else
if (cpu_has_divec)
memcpy((void *)(KSEG0 + 0x200), &except_vec4, 8);
+#endif
/*
* Some CPUs can enable/disable for cache parity detection, but does
@@ -991,12 +1037,17 @@
if (cpu_has_mcheck)
set_except_vector(24, handle_mcheck);
+memcpy((void *)(KSEG0 + 0x180), &except_vec3_generic, 0x80);
+#ifdef CONFIG_AR7
+ memcpy((void *)(AVALANCHE_VECS_KSEG0 + 0x180), &except_vec3_generic, 0x80);
+#else
if (cpu_has_vce)
memcpy((void *)(KSEG0 + 0x180), &except_vec3_r4000, 0x80);
else if (cpu_has_4kex)
memcpy((void *)(KSEG0 + 0x180), &except_vec3_generic, 0x80);
else
memcpy((void *)(KSEG0 + 0x080), &except_vec3_generic, 0x80);
+#endif
if (current_cpu_data.cputype == CPU_R6000 ||
current_cpu_data.cputype == CPU_R6000A) {
@@ -1023,7 +1074,11 @@
if (board_nmi_handler_setup)
board_nmi_handler_setup();
+#ifdef CONFIG_AR7
+ flush_icache_range(AVALANCHE_VECS_KSEG0, AVALANCHE_VECS_KSEG0 + 0x200);
+#else
flush_icache_range(KSEG0, KSEG0 + 0x400);
+#endif
per_cpu_trap_init();
}
diff -urN kernel-base/arch/mips/lib/promlib.c kernel-tmp2/arch/mips/lib/promlib.c
--- kernel-base/arch/mips/lib/promlib.c 2005-07-10 03:00:44.786181072 +0200
+++ kernel-tmp2/arch/mips/lib/promlib.c 2005-07-10 06:40:39.591265800 +0200
@@ -1,3 +1,4 @@
+#ifndef CONFIG_AR7
#include <stdarg.h>
#include <linux/kernel.h>
@@ -22,3 +23,4 @@
}
va_end(args);
}
+#endif
diff -urN kernel-base/arch/mips/Makefile kernel-tmp2/arch/mips/Makefile
--- kernel-base/arch/mips/Makefile 2005-07-10 03:00:44.786181072 +0200
+++ kernel-tmp2/arch/mips/Makefile 2005-07-10 06:40:39.591265800 +0200
@@ -369,6 +369,16 @@
endif
#
+# Texas Instruments AR7
+#
+
+ifdef CONFIG_AR7
+LIBS += arch/mips/ar7/ar7.o arch/mips/ar7/ar7/ar7.o
+SUBDIRS += arch/mips/ar7 arch/mips/ar7/ar7
+LOADADDR += 0x94020000
+endif
+
+#
# DECstation family
#
ifdef CONFIG_DECSTATION
diff -urN kernel-base/arch/mips/mm/init.c kernel-tmp2/arch/mips/mm/init.c
--- kernel-base/arch/mips/mm/init.c 2005-07-10 03:00:44.787180920 +0200
+++ kernel-tmp2/arch/mips/mm/init.c 2005-07-10 07:09:29.914216728 +0200
@@ -40,8 +40,10 @@
mmu_gather_t mmu_gathers[NR_CPUS];
unsigned long highstart_pfn, highend_pfn;
+#ifndef CONFIG_AR7_PAGING
static unsigned long totalram_pages;
static unsigned long totalhigh_pages;
+#endif
void pgd_init(unsigned long page)
{
@@ -235,6 +237,7 @@
#endif
}
+#ifndef CONFIG_AR7_PAGING
void __init paging_init(void)
{
unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
@@ -272,6 +275,7 @@
free_area_init(zones_size);
}
+#endif
#define PFN_UP(x) (((x) + PAGE_SIZE - 1) >> PAGE_SHIFT)
#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
@@ -298,6 +302,7 @@
return 0;
}
+#ifndef CONFIG_AR7_PAGING
void __init mem_init(void)
{
unsigned long codesize, reservedpages, datasize, initsize;
@@ -359,6 +364,7 @@
initsize >> 10,
(unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)));
}
+#endif
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
@@ -376,6 +382,7 @@
}
#endif
+#ifndef CONFIG_AR7_PAGING
extern char __init_begin, __init_end;
extern void prom_free_prom_memory(void) __init;
@@ -383,7 +390,9 @@
{
unsigned long addr;
+#ifndef CONFIG_AR7
prom_free_prom_memory ();
+#endif
addr = (unsigned long) &__init_begin;
while (addr < (unsigned long) &__init_end) {
@@ -409,3 +418,4 @@
return;
}
+#endif
diff -urN kernel-base/arch/mips/mm/tlb-r4k.c kernel-tmp2/arch/mips/mm/tlb-r4k.c
--- kernel-base/arch/mips/mm/tlb-r4k.c 2005-07-10 03:00:44.787180920 +0200
+++ kernel-tmp2/arch/mips/mm/tlb-r4k.c 2005-07-10 06:40:39.592265648 +0200
@@ -20,6 +20,10 @@
#include <asm/pgtable.h>
#include <asm/system.h>
+#ifdef CONFIG_AR7
+#include <asm/ar7/ar7.h>
+#endif
+
extern char except_vec0_nevada, except_vec0_r4000, except_vec0_r4600;
/* CP0 hazard avoidance. */
@@ -375,7 +379,12 @@
else if (current_cpu_data.cputype == CPU_R4600)
memcpy((void *)KSEG0, &except_vec0_r4600, 0x80);
else
+#ifdef CONFIG_AR7
+ memcpy((void *)AVALANCHE_VECS_KSEG0, &except_vec0_r4000, 0x80);
+ flush_icache_range(AVALANCHE_VECS_KSEG0, AVALANCHE_VECS_KSEG0 + 0x80);
+#else
memcpy((void *)KSEG0, &except_vec0_r4000, 0x80);
flush_icache_range(KSEG0, KSEG0 + 0x80);
+#endif
}
}
diff -urN kernel-base/drivers/char/serial.c kernel-tmp2/drivers/char/serial.c
--- kernel-base/drivers/char/serial.c 2005-07-10 03:00:44.789180616 +0200
+++ kernel-tmp2/drivers/char/serial.c 2005-07-10 06:42:02.902600552 +0200
@@ -419,7 +419,40 @@
return 0;
}
-#if defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_SEAD)
+#if defined(CONFIG_AR7)
+
+static _INLINE_ unsigned int serial_in(struct async_struct *info, int offset)
+{
+ return (inb(info->port + (offset * 4)) & 0xff);
+}
+
+
+static _INLINE_ unsigned int serial_inp(struct async_struct *info, int offset)
+{
+#ifdef CONFIG_SERIAL_NOPAUSE_IO
+ return (inb(info->port + (offset * 4)) & 0xff);
+#else
+ return (inb_p(info->port + (offset * 4)) & 0xff);
+#endif
+}
+
+static _INLINE_ void serial_out(struct async_struct *info, int offset, int value)
+{
+ outb(value, info->port + (offset * 4));
+}
+
+
+static _INLINE_ void serial_outp(struct async_struct *info, int offset,
+ int value)
+{
+#ifdef CONFIG_SERIAL_NOPAUSE_IO
+ outb(value, info->port + (offset * 4));
+#else
+ outb_p(value, info->port + (offset * 4));
+#endif
+}
+
+#elif defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_SEAD)
#include <asm/mips-boards/atlas.h>
@@ -478,8 +511,10 @@
* needed for certain old 386 machines, I've left these #define's
* in....
*/
+#ifndef CONFIG_AR7
#define serial_inp(info, offset) serial_in(info, offset)
#define serial_outp(info, offset, value) serial_out(info, offset, value)
+#endif
/*
@@ -1728,7 +1763,16 @@
/* Special case since 134 is really 134.5 */
quot = (2*baud_base / 269);
else if (baud)
+#ifdef CONFIG_AR7
+ quot = (CONFIG_AR7_SYS_FREQUENCY*500000) / baud;
+ //quot = get_avalanche_vbus_freq() / baud;
+
+ if ((quot%16)>7)
+ quot += 8;
+ quot /=16;
+#else
quot = baud_base / baud;
+#endif
}
/* If the quotient is zero refuse the change */
if (!quot && old_termios) {
@@ -5552,8 +5596,10 @@
state->irq = irq_cannonicalize(state->irq);
if (state->hub6)
state->io_type = SERIAL_IO_HUB6;
+#ifndef CONFIG_AR7
if (state->port && check_region(state->port,8))
continue;
+#endif
#ifdef CONFIG_MCA
if ((state->flags & ASYNC_BOOT_ONLYMCA) && !MCA_bus)
continue;
@@ -6009,7 +6055,16 @@
info->io_type = state->io_type;
info->iomem_base = state->iomem_base;
info->iomem_reg_shift = state->iomem_reg_shift;
+#ifdef CONFIG_AR7
+ //quot = get_avalanche_vbus_freq() / baud;
+ quot = (CONFIG_AR7_SYS_FREQUENCY*500000) / baud;
+
+ if ((quot%16)>7)
+ quot += 8;
+ quot /=16;
+#else
quot = state->baud_base / baud;
+#endif
cval = cflag & (CSIZE | CSTOPB);
#if defined(__powerpc__) || defined(__alpha__)
cval >>= 8;
diff -urN kernel-base/include/asm-mips/ar7/ar7.h kernel-tmp2/include/asm-mips/ar7/ar7.h
--- kernel-base/include/asm-mips/ar7/ar7.h 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/include/asm-mips/ar7/ar7.h 2005-07-10 06:40:39.622261088 +0200
@@ -0,0 +1,33 @@
+/*
+ * $Id$
+ * Copyright (C) $Date$ $Author$
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef _AR7_H
+#define _AR7_H
+
+#include <asm/addrspace.h>
+#include <linux/config.h>
+
+#define AVALANCHE_VECS_KSEG0 (KSEG0ADDR(CONFIG_AR7_MEMORY))
+
+#define AR7_UART0_REGS_BASE (KSEG1ADDR(0x08610E00))
+#define AR7_UART1_REGS_BASE (KSEG1ADDR(0x08610E00))
+#define AR7_BASE_BAUD ( 3686400 / 16 )
+
+#endif
diff -urN kernel-base/include/asm-mips/ar7/avalanche_intc.h kernel-tmp2/include/asm-mips/ar7/avalanche_intc.h
--- kernel-base/include/asm-mips/ar7/avalanche_intc.h 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/include/asm-mips/ar7/avalanche_intc.h 2005-07-10 06:40:39.622261088 +0200
@@ -0,0 +1,278 @@
+ /*
+ * Nitin Dhingra, iamnd@ti.com
+ * Copyright (C) 2000 Texas Instruments Inc.
+ *
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * Defines of the Sead board specific address-MAP, registers, etc.
+ *
+ */
+#ifndef _AVALANCHE_INTC_H
+#define _AVALANCHE_INTC_H
+
+#define MIPS_EXCEPTION_OFFSET 8
+
+/******************************************************************************
+ Avalanche Interrupt number
+******************************************************************************/
+#define AVINTNUM(x) ((x) - MIPS_EXCEPTION_OFFSET)
+
+/*******************************************************************************
+*Linux Interrupt number
+*******************************************************************************/
+#define LNXINTNUM(x)((x) + MIPS_EXCEPTION_OFFSET)
+
+
+
+#define AVALANCHE_INT_END_PRIMARY (40 + MIPS_EXCEPTION_OFFSET)
+#define AVALANCHE_INT_END_SECONDARY (32 + MIPS_EXCEPTION_OFFSET)
+
+#define AVALANCHE_INT_END_PRIMARY_REG1 (31 + MIPS_EXCEPTION_OFFSET)
+#define AVALANCHE_INT_END_PRIMARY_REG2 (39 + MIPS_EXCEPTION_OFFSET)
+
+
+#define AVALANCHE_INT_END (AVINTNUM(AVALANCHE_INT_END_PRIMARY) + \
+ AVINTNUM(AVALANCHE_INT_END_SECONDARY) \
+ + MIPS_EXCEPTION_OFFSET - 1) /* Suraj, check */
+
+
+/*
+ * Avalanche interrupt controller register base (primary)
+ */
+#define KSEG1_BASE 0xA0000000
+#define KSEG_INV_MASK 0x1FFFFFFF /* Inverted mask for kseg address */
+#define PHYS_ADDR(addr) ((addr) & KSEG_INV_MASK)
+#define PHYS_TO_K1(addr) (PHYS_ADDR(addr)|KSEG1_BASE)
+
+#define AVALANCHE_ICTRL_REGS_BASE KSEG1ADDR(0x08612400)// AVALANCHE_INTC_BASE
+
+/******************************************************************************
+ * Avalanche exception controller register base (secondary)
+ ******************************************************************************/
+#define AVALANCHE_ECTRL_REGS_BASE (AVALANCHE_ICTRL_REGS_BASE + 0x80)
+
+
+/******************************************************************************
+ * Avalanche Interrupt pacing register base (secondary)
+ ******************************************************************************/
+#define AVALANCHE_IPACE_REGS_BASE (AVALANCHE_ICTRL_REGS_BASE + 0xA0)
+
+
+
+/******************************************************************************
+ * Avalanche Interrupt Channel Control register base
+ *****************************************************************************/
+#define AVALANCHE_CHCTRL_REGS_BASE (AVALANCHE_ICTRL_REGS_BASE + 0x200)
+
+
+struct avalanche_ictrl_regs /* Avalanche Interrupt control registers */
+{
+ volatile unsigned long intsr1; /* Interrupt Status/Set Register 1 0x00 */
+ volatile unsigned long intsr2; /* Interrupt Status/Set Register 2 0x04 */
+ volatile unsigned long unused1; /*0x08 */
+ volatile unsigned long unused2; /*0x0C */
+ volatile unsigned long intcr1; /* Interrupt Clear Register 1 0x10 */
+ volatile unsigned long intcr2; /* Interrupt Clear Register 2 0x14 */
+ volatile unsigned long unused3; /*0x18 */
+ volatile unsigned long unused4; /*0x1C */
+ volatile unsigned long intesr1; /* Interrupt Enable (Set) Register 1 0x20 */
+ volatile unsigned long intesr2; /* Interrupt Enable (Set) Register 2 0x24 */
+ volatile unsigned long unused5; /*0x28 */
+ volatile unsigned long unused6; /*0x2C */
+ volatile unsigned long intecr1; /* Interrupt Enable Clear Register 1 0x30 */
+ volatile unsigned long intecr2; /* Interrupt Enable Clear Register 2 0x34 */
+ volatile unsigned long unused7; /* 0x38 */
+ volatile unsigned long unused8; /* 0x3c */
+ volatile unsigned long pintir; /* Priority Interrupt Index Register 0x40 */
+ volatile unsigned long intmsr; /* Priority Interrupt Mask Index Reg 0x44 */
+ volatile unsigned long unused9; /* 0x48 */
+ volatile unsigned long unused10; /* 0x4C */
+ volatile unsigned long intpolr1; /* Interrupt Polarity Mask register 10x50 */
+ volatile unsigned long intpolr2; /* Interrupt Polarity Mask register 20x54 */
+ volatile unsigned long unused11; /* 0x58 */
+ volatile unsigned long unused12; /*0x5C */
+ volatile unsigned long inttypr1; /* Interrupt Type Mask register 10x60 */
+ volatile unsigned long inttypr2; /* Interrupt Type Mask register 20x64 */
+};
+
+struct avalanche_exctrl_regs /* Avalanche Exception control registers */
+{
+ volatile unsigned long exsr; /* Exceptions Status/Set register 0x80 */
+ volatile unsigned long reserved; /*0x84 */
+ volatile unsigned long excr; /* Exceptions Clear Register 0x88 */
+ volatile unsigned long reserved1; /*0x8c */
+ volatile unsigned long exiesr; /* Exceptions Interrupt Enable (set) 0x90 */
+ volatile unsigned long reserved2; /*0x94 */
+ volatile unsigned long exiecr; /* Exceptions Interrupt Enable(clear)0x98 */
+};
+struct avalanche_ipace_regs
+{
+
+ volatile unsigned long ipacep; /* Interrupt pacing register 0xa0 */
+ volatile unsigned long ipacemap; /*Interrupt Pacing Map Register 0xa4 */
+ volatile unsigned long ipacemax; /*Interrupt Pacing Max Register 0xa8 */
+};
+struct avalanche_channel_int_number
+{
+ volatile unsigned long cintnr0; /* Channel Interrupt Number Register0x200 */
+ volatile unsigned long cintnr1; /* Channel Interrupt Number Register0x204 */
+ volatile unsigned long cintnr2; /* Channel Interrupt Number Register0x208 */
+ volatile unsigned long cintnr3; /* Channel Interrupt Number Register0x20C */
+ volatile unsigned long cintnr4; /* Channel Interrupt Number Register0x210 */
+ volatile unsigned long cintnr5; /* Channel Interrupt Number Register0x214 */
+ volatile unsigned long cintnr6; /* Channel Interrupt Number Register0x218 */
+ volatile unsigned long cintnr7; /* Channel Interrupt Number Register0x21C */
+ volatile unsigned long cintnr8; /* Channel Interrupt Number Register0x220 */
+ volatile unsigned long cintnr9; /* Channel Interrupt Number Register0x224 */
+ volatile unsigned long cintnr10; /* Channel Interrupt Number Register0x228 */
+ volatile unsigned long cintnr11; /* Channel Interrupt Number Register0x22C */
+ volatile unsigned long cintnr12; /* Channel Interrupt Number Register0x230 */
+ volatile unsigned long cintnr13; /* Channel Interrupt Number Register0x234 */
+ volatile unsigned long cintnr14; /* Channel Interrupt Number Register0x238 */
+ volatile unsigned long cintnr15; /* Channel Interrupt Number Register0x23C */
+ volatile unsigned long cintnr16; /* Channel Interrupt Number Register0x240 */
+ volatile unsigned long cintnr17; /* Channel Interrupt Number Register0x244 */
+ volatile unsigned long cintnr18; /* Channel Interrupt Number Register0x248 */
+ volatile unsigned long cintnr19; /* Channel Interrupt Number Register0x24C */
+ volatile unsigned long cintnr20; /* Channel Interrupt Number Register0x250 */
+ volatile unsigned long cintnr21; /* Channel Interrupt Number Register0x254 */
+ volatile unsigned long cintnr22; /* Channel Interrupt Number Register0x358 */
+ volatile unsigned long cintnr23; /* Channel Interrupt Number Register0x35C */
+ volatile unsigned long cintnr24; /* Channel Interrupt Number Register0x260 */
+ volatile unsigned long cintnr25; /* Channel Interrupt Number Register0x264 */
+ volatile unsigned long cintnr26; /* Channel Interrupt Number Register0x268 */
+ volatile unsigned long cintnr27; /* Channel Interrupt Number Register0x26C */
+ volatile unsigned long cintnr28; /* Channel Interrupt Number Register0x270 */
+ volatile unsigned long cintnr29; /* Channel Interrupt Number Register0x274 */
+ volatile unsigned long cintnr30; /* Channel Interrupt Number Register0x278 */
+ volatile unsigned long cintnr31; /* Channel Interrupt Number Register0x27C */
+ volatile unsigned long cintnr32; /* Channel Interrupt Number Register0x280 */
+ volatile unsigned long cintnr33; /* Channel Interrupt Number Register0x284 */
+ volatile unsigned long cintnr34; /* Channel Interrupt Number Register0x288 */
+ volatile unsigned long cintnr35; /* Channel Interrupt Number Register0x28C */
+ volatile unsigned long cintnr36; /* Channel Interrupt Number Register0x290 */
+ volatile unsigned long cintnr37; /* Channel Interrupt Number Register0x294 */
+ volatile unsigned long cintnr38; /* Channel Interrupt Number Register0x298 */
+ volatile unsigned long cintnr39; /* Channel Interrupt Number Register0x29C */
+};
+
+struct avalanche_interrupt_line_to_channel
+{
+ unsigned long int_line0; /* Start of primary interrupts */
+ unsigned long int_line1;
+ unsigned long int_line2;
+ unsigned long int_line3;
+ unsigned long int_line4;
+ unsigned long int_line5;
+ unsigned long int_line6;
+ unsigned long int_line7;
+ unsigned long int_line8;
+ unsigned long int_line9;
+ unsigned long int_line10;
+ unsigned long int_line11;
+ unsigned long int_line12;
+ unsigned long int_line13;
+ unsigned long int_line14;
+ unsigned long int_line15;
+ unsigned long int_line16;
+ unsigned long int_line17;
+ unsigned long int_line18;
+ unsigned long int_line19;
+ unsigned long int_line20;
+ unsigned long int_line21;
+ unsigned long int_line22;
+ unsigned long int_line23;
+ unsigned long int_line24;
+ unsigned long int_line25;
+ unsigned long int_line26;
+ unsigned long int_line27;
+ unsigned long int_line28;
+ unsigned long int_line29;
+ unsigned long int_line30;
+ unsigned long int_line31;
+ unsigned long int_line32;
+ unsigned long int_line33;
+ unsigned long int_line34;
+ unsigned long int_line35;
+ unsigned long int_line36;
+ unsigned long int_line37;
+ unsigned long int_line38;
+ unsigned long int_line39;
+};
+
+
+/* Interrupt Line #'s (Sangam peripherals) */
+
+/*------------------------------*/
+/* Sangam primary interrupts */
+/*------------------------------*/
+
+#define UNIFIED_SECONDARY_INTERRUPT 0
+#define AVALANCHE_EXT_INT_0 1
+#define AVALANCHE_EXT_INT_1 2
+/* Line #3 Reserved */
+/* Line #4 Reserved */
+#define AVALANCHE_TIMER_0_INT 5
+#define AVALANCHE_TIMER_1_INT 6
+#define AVALANCHE_UART0_INT 7
+#define AVALANCHE_UART1_INT 8
+#define AVALANCHE_PDMA_INT0 9
+#define AVALANCHE_PDMA_INT1 10
+/* Line #11 Reserved */
+/* Line #12 Reserved */
+/* Line #13 Reserved */
+/* Line #14 Reserved */
+#define AVALANCHE_ATM_SAR_INT 15
+/* Line #16 Reserved */
+/* Line #17 Reserved */
+/* Line #18 Reserved */
+#define AVALANCHE_MAC0_INT 19
+/* Line #20 Reserved */
+#define AVALANCHE_VLYNQ0_INT 21
+#define AVALANCHE_CODEC_WAKE_INT 22
+/* Line #23 Reserved */
+#define AVALANCHE_USB_INT 24
+#define AVALANCHE_VLYNQ1_INT 25
+/* Line #26 Reserved */
+/* Line #27 Reserved */
+#define AVALANCHE_MAC1_INT 28
+#define AVALANCHE_I2CM_INT 29
+#define AVALANCHE_PDMA_INT2 30
+#define AVALANCHE_PDMA_INT3 31
+/* Line #32 Reserved */
+/* Line #33 Reserved */
+/* Line #34 Reserved */
+/* Line #35 Reserved */
+/* Line #36 Reserved */
+#define AVALANCHE_VDMA_VT_RX_INT 37
+#define AVALANCHE_VDMA_VT_TX_INT 38
+#define AVALANCHE_ADSLSS_INT 39
+
+/*-----------------------------------*/
+/* Sangam Secondary Interrupts */
+/*-----------------------------------*/
+#define PRIMARY_INTS 40
+
+#define EMIF_INT (7 + PRIMARY_INTS)
+
+
+extern void avalanche_int_set(int channel, int line);
+
+
+#endif /* _AVALANCHE_INTC_H */
diff -urN kernel-base/include/asm-mips/ar7/if_port.h kernel-tmp2/include/asm-mips/ar7/if_port.h
--- kernel-base/include/asm-mips/ar7/if_port.h 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/include/asm-mips/ar7/if_port.h 2005-07-10 06:40:39.623260936 +0200
@@ -0,0 +1,26 @@
+/*******************************************************************************
+ * FILE PURPOSE: Interface port id Header file
+ *******************************************************************************
+ * FILE NAME: if_port.h
+ *
+ * DESCRIPTION: Header file carrying information about port ids of interfaces
+ *
+ *
+ * (C) Copyright 2003, Texas Instruments, Inc
+ ******************************************************************************/
+#ifndef _IF_PORT_H_
+#define _IF_PORT_H_
+
+#define AVALANCHE_CPMAC_LOW_PORT_ID 0
+#define AVALANCHE_CPMAC_HIGH_PORT_ID 1
+#define AVALANCHE_USB_PORT_ID 2
+#define AVALANCHE_WLAN_PORT_ID 3
+
+
+#define AVALANCHE_MARVELL_BASE_PORT_ID 4
+
+/* The marvell ports occupy port ids from 4 to 8 */
+/* so the next port id number should start at 9 */
+
+
+#endif /* _IF_PORT_H_ */
diff -urN kernel-base/include/asm-mips/ar7/sangam_boards.h kernel-tmp2/include/asm-mips/ar7/sangam_boards.h
--- kernel-base/include/asm-mips/ar7/sangam_boards.h 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/include/asm-mips/ar7/sangam_boards.h 2005-07-10 06:40:39.623260936 +0200
@@ -0,0 +1,77 @@
+#ifndef _SANGAM_BOARDS_H
+#define _SANGAM_BOARDS_H
+
+// Let us define board specific information here.
+
+
+#if defined(CONFIG_AR7DB)
+
+#define AFECLK_FREQ 35328000
+#define REFCLK_FREQ 25000000
+#define OSC3_FREQ 24000000
+#define AVALANCHE_LOW_CPMAC_PHY_MASK 0x80000000
+#define AVALANCHE_HIGH_CPMAC_PHY_MASK 0x55555555
+#define AVALANCHE_LOW_CPMAC_MDIX_MASK 0x80000000
+
+#endif
+
+
+#if defined(CONFIG_AR7RD)
+#define AFECLK_FREQ 35328000
+#define REFCLK_FREQ 25000000
+#define OSC3_FREQ 24000000
+#define AVALANCHE_LOW_CPMAC_PHY_MASK 0x80000000
+#define AVALANCHE_HIGH_CPMAC_PHY_MASK 0x2
+#define AVALANCHE_LOW_CPMAC_MDIX_MASK 0x80000000
+#endif
+
+
+#if defined(CONFIG_AR7WI)
+#define AFECLK_FREQ 35328000
+#define REFCLK_FREQ 25000000
+#define OSC3_FREQ 24000000
+#define AVALANCHE_LOW_CPMAC_PHY_MASK 0x80000000
+#define AVALANCHE_HIGH_CPMAC_PHY_MASK 0x2
+#define AVALANCHE_LOW_CPMAC_MDIX_MASK 0x80000000
+#endif
+
+
+#if defined(CONFIG_AR7V)
+#define AFECLK_FREQ 35328000
+#define REFCLK_FREQ 25000000
+#define OSC3_FREQ 24000000
+#define AVALANCHE_LOW_CPMAC_PHY_MASK 0x80000000
+#define AVALANCHE_HIGH_CPMAC_PHY_MASK 0x2
+#define AVALANCHE_LOW_CPMAC_MDIX_MASK 0x80000000
+#endif
+
+
+#if defined(CONFIG_AR7WRD)
+#define AFECLK_FREQ 35328000
+#define REFCLK_FREQ 25000000
+#define OSC3_FREQ 24000000
+#define AVALANCHE_LOW_CPMAC_PHY_MASK 0x80000000
+#define AVALANCHE_HIGH_CPMAC_PHY_MASK 0x00010000
+#define AVALANCHE_LOW_CPMAC_MDIX_MASK 0x80000000
+#endif
+
+
+#if defined(CONFIG_AR7VWI)
+#define AFECLK_FREQ 35328000
+#define REFCLK_FREQ 25000000
+#define OSC3_FREQ 24000000
+#define AVALANCHE_LOW_CPMAC_PHY_MASK 0x80000000
+#define AVALANCHE_HIGH_CPMAC_PHY_MASK 0x00010000
+#define AVALANCHE_LOW_CPMAC_MDIX_MASK 0x80000000
+#endif
+
+
+#if defined CONFIG_SEAD2
+#define AVALANCHE_LOW_CPMAC_PHY_MASK 0xAAAAAAAA
+#define AVALANCHE_HIGH_CPMAC_PHY_MASK 0x55555555
+#define AVALANCHE_LOW_CPMAC_MDIX_MASK 0
+#include <asm/mips-boards/sead.h>
+#endif
+
+
+#endif
diff -urN kernel-base/include/asm-mips/ar7/sangam.h kernel-tmp2/include/asm-mips/ar7/sangam.h
--- kernel-base/include/asm-mips/ar7/sangam.h 1970-01-01 01:00:00.000000000 +0100
+++ kernel-tmp2/include/asm-mips/ar7/sangam.h 2005-07-10 06:40:39.624260784 +0200
@@ -0,0 +1,180 @@
+#ifndef _SANGAM_H_
+#define _SANGAM_H_
+
+#include <linux/config.h>
+#include <asm/addrspace.h>
+
+/*----------------------------------------------------
+ * Sangam's Module Base Addresses
+ *--------------------------------------------------*/
+#define AVALANCHE_ADSL_SUB_SYS_MEM_BASE (KSEG1ADDR(0x01000000)) /* AVALANCHE ADSL Mem Base */
+#define AVALANCHE_BROADBAND_INTERFACE__BASE (KSEG1ADDR(0x02000000)) /* AVALANCHE BBIF */
+#define AVALANCHE_ATM_SAR_BASE (KSEG1ADDR(0x03000000)) /* AVALANCHE ATM SAR */
+#define AVALANCHE_USB_SLAVE_BASE (KSEG1ADDR(0x03400000)) /* AVALANCHE USB SLAVE */
+#define AVALANCHE_LOW_VLYNQ_MEM_MAP_BASE (KSEG1ADDR(0x04000000)) /* AVALANCHE VLYNQ 0 Mem map */
+#define AVALANCHE_LOW_CPMAC_BASE (KSEG1ADDR(0x08610000)) /* AVALANCHE CPMAC 0 */
+#define AVALANCHE_EMIF_CONTROL_BASE (KSEG1ADDR(0x08610800)) /* AVALANCHE EMIF */
+#define AVALANCHE_GPIO_BASE (KSEG1ADDR(0x08610900)) /* AVALANCHE GPIO */
+#define AVALANCHE_CLOCK_CONTROL_BASE (KSEG1ADDR(0x08610A00)) /* AVALANCHE Clock Control */
+#define AVALANCHE_WATCHDOG_TIMER_BASE (KSEG1ADDR(0x08610B00)) /* AVALANCHE Watch Dog Timer */
+#define AVALANCHE_TIMER0_BASE (KSEG1ADDR(0x08610C00)) /* AVALANCHE Timer 1 */
+#define AVALANCHE_TIMER1_BASE (KSEG1ADDR(0x08610D00)) /* AVALANCHE Timer 2 */
+#define AVALANCHE_UART0_REGS_BASE (KSEG1ADDR(0x08610E00)) /* AVALANCHE UART 0 */
+#define AVALANCHE_UART1_REGS_BASE (KSEG1ADDR(0x08610F00)) /* AVALANCHE UART 0 */
+#define AVALANCHE_I2C_BASE (KSEG1ADDR(0x08611000)) /* AVALANCHE I2C */
+#define AVALANCHE_USB_SLAVE_CONTROL_BASE (KSEG1ADDR(0x08611200)) /* AVALANCHE USB DMA */
+#define AVALANCHE_MCDMA0_CTRL_BASE (KSEG1ADDR(0x08611400)) /* AVALANCHE MC DMA 0 (channels 0-3) */
+#define AVALANCHE_RESET_CONTROL_BASE (KSEG1ADDR(0x08611600)) /* AVALANCHE Reset Control */
+#define AVALANCHE_BIST_CONTROL_BASE (KSEG1ADDR(0x08611700)) /* AVALANCHE BIST Control */
+#define AVALANCHE_LOW_VLYNQ_CONTROL_BASE (KSEG1ADDR(0x08611800)) /* AVALANCHE VLYNQ0 Control */
+#define AVALANCHE_DEVICE_CONFIG_LATCH_BASE (KSEG1ADDR(0x08611A00)) /* AVALANCHE Device Config Latch */
+#define AVALANCHE_HIGH_VLYNQ_CONTROL_BASE (KSEG1ADDR(0x08611C00)) /* AVALANCHE VLYNQ1 Control */
+#define AVALANCHE_MDIO_BASE (KSEG1ADDR(0x08611E00)) /* AVALANCHE MDIO */
+#define AVALANCHE_FSER_BASE (KSEG1ADDR(0x08612000)) /* AVALANCHE FSER base */
+#define AVALANCHE_INTC_BASE (KSEG1ADDR(0x08612400)) /* AVALANCHE INTC */
+#define AVALANCHE_HIGH_CPMAC_BASE (KSEG1ADDR(0x08612800)) /* AVALANCHE CPMAC 1 */
+#define AVALANCHE_HIGH_VLYNQ_MEM_MAP_BASE (KSEG1ADDR(0x0C000000)) /* AVALANCHE VLYNQ 1 Mem map */
+
+#define AVALANCHE_SDRAM_BASE 0x14000000UL
+
+
+/*----------------------------------------------------
+ * Sangam Interrupt Map (Primary Interrupts)
+ *--------------------------------------------------*/
+
+#define AVALANCHE_UNIFIED_SECONDARY_INT 0
+#define AVALANCHE_EXT_INT_0 1
+#define AVALANCHE_EXT_INT_1 2
+/* Line# 3 to 4 are reserved */
+#define AVALANCHE_TIMER_0_INT 5
+#define AVALANCHE_TIMER_1_INT 6
+#define AVALANCHE_UART0_INT 7
+#define AVALANCHE_UART1_INT 8
+#define AVALANCHE_DMA_INT0 9
+#define AVALANCHE_DMA_INT1 10
+/* Line# 11 to 14 are reserved */
+#define AVALANCHE_ATM_SAR_INT 15
+/* Line# 16 to 18 are reserved */
+#define AVALANCHE_LOW_CPMAC_INT 19
+/* Line# 20 is reserved */
+#define AVALANCHE_LOW_VLYNQ_INT 21
+#define AVALANCHE_CODEC_WAKEUP_INT 22
+/* Line# 23 is reserved */
+#define AVALANCHE_USB_SLAVE_INT 24
+#define AVALANCHE_HIGH_VLYNQ_INT 25
+/* Line# 26 to 27 are reserved */
+#define AVALANCHE_UNIFIED_PHY_INT 28
+#define AVALANCHE_I2C_INT 29
+#define AVALANCHE_DMA_INT2 30
+#define AVALANCHE_DMA_INT3 31
+/* Line# 32 is reserved */
+#define AVALANCHE_HIGH_CPMAC_INT 33
+/* Line# 34 to 36 is reserved */
+#define AVALANCHE_VDMA_VT_RX_INT 37
+#define AVALANCHE_VDMA_VT_TX_INT 38
+#define AVALANCHE_ADSL_SUB_SYSTEM_INT 39
+
+
+#define AVALANCHE_EMIF_INT 47
+
+
+
+/*-----------------------------------------------------------
+ * Sangam's Reset Bits
+ *---------------------------------------------------------*/
+
+#define AVALANCHE_UART0_RESET_BIT 0
+#define AVALANCHE_UART1_RESET_BIT 1
+#define AVALANCHE_I2C_RESET_BIT 2
+#define AVALANCHE_TIMER0_RESET_BIT 3
+#define AVALANCHE_TIMER1_RESET_BIT 4
+/* Reset bit 5 is reserved. */
+#define AVALANCHE_GPIO_RESET_BIT 6
+#define AVALANCHE_ADSL_SUB_SYS_RESET_BIT 7
+#define AVALANCHE_USB_SLAVE_RESET_BIT 8
+#define AVALANCHE_ATM_SAR_RESET_BIT 9
+/* Reset bit 10 is reserved. */
+#define AVALANCHE_VDMA_VT_RESET_BIT 11
+#define AVALANCHE_FSER_RESET_BIT 12
+/* Reset bit 13 to 15 are reserved */
+#define AVALANCHE_HIGH_VLYNQ_RESET_BIT 16
+#define AVALANCHE_LOW_CPMAC_RESET_BIT 17
+#define AVALANCHE_MCDMA_RESET_BIT 18
+#define AVALANCHE_BIST_RESET_BIT 19
+#define AVALANCHE_LOW_VLYNQ_RESET_BIT 20
+#define AVALANCHE_HIGH_CPMAC_RESET_BIT 21
+#define AVALANCHE_MDIO_RESET_BIT 22
+#define AVALANCHE_ADSL_SUB_SYS_DSP_RESET_BIT 23
+/* Reset bit 24 to 25 are reserved */
+#define AVALANCHE_LOW_EPHY_RESET_BIT 26
+/* Reset bit 27 to 31 are reserved */
+
+
+#define AVALANCHE_POWER_MODULE_USBSP 0
+#define AVALANCHE_POWER_MODULE_WDTP 1
+#define AVALANCHE_POWER_MODULE_UT0P 2
+#define AVALANCHE_POWER_MODULE_UT1P 3
+#define AVALANCHE_POWER_MODULE_IICP 4
+#define AVALANCHE_POWER_MODULE_VDMAP 5
+#define AVALANCHE_POWER_MODULE_GPIOP 6
+#define AVALANCHE_POWER_MODULE_VLYNQ1P 7
+#define AVALANCHE_POWER_MODULE_SARP 8
+#define AVALANCHE_POWER_MODULE_ADSLP 9
+#define AVALANCHE_POWER_MODULE_EMIFP 10
+#define AVALANCHE_POWER_MODULE_ADSPP 12
+#define AVALANCHE_POWER_MODULE_RAMP 13
+#define AVALANCHE_POWER_MODULE_ROMP 14
+#define AVALANCHE_POWER_MODULE_DMAP 15
+#define AVALANCHE_POWER_MODULE_BISTP 16
+#define AVALANCHE_POWER_MODULE_TIMER0P 18
+#define AVALANCHE_POWER_MODULE_TIMER1P 19
+#define AVALANCHE_POWER_MODULE_EMAC0P 20
+#define AVALANCHE_POWER_MODULE_EMAC1P 22
+#define AVALANCHE_POWER_MODULE_EPHYP 24
+#define AVALANCHE_POWER_MODULE_VLYNQ0P 27
+
+
+
+
+
+/*
+ * Sangam board vectors
+ */
+
+#define AVALANCHE_VECS (KSEG1ADDR(AVALANCHE_SDRAM_BASE))
+#define AVALANCHE_VECS_KSEG0 (KSEG0ADDR(AVALANCHE_SDRAM_BASE))
+
+/*-----------------------------------------------------------------------------
+ * Sangam's system register.
+ *
+ *---------------------------------------------------------------------------*/
+#define AVALANCHE_DCL_BOOTCR (KSEG1ADDR(0x08611A00))
+#define AVALANCHE_EMIF_SDRAM_CFG (AVALANCHE_EMIF_CONTROL_BASE + 0x8)
+#define AVALANCHE_RST_CTRL_PRCR (KSEG1ADDR(0x08611600))
+#define AVALANCHE_RST_CTRL_SWRCR (KSEG1ADDR(0x08611604))
+#define AVALANCHE_RST_CTRL_RSR (KSEG1ADDR(0x08611600))
+
+#define AVALANCHE_POWER_CTRL_PDCR (KSEG1ADDR(0x08610A00))
+#define AVALANCHE_WAKEUP_CTRL_WKCR (KSEG1ADDR(0x08610A0C))
+
+#define AVALANCHE_GPIO_DATA_IN (AVALANCHE_GPIO_BASE + 0x0)
+#define AVALANCHE_GPIO_DATA_OUT (AVALANCHE_GPIO_BASE + 0x4)
+#define AVALANCHE_GPIO_DIR (AVALANCHE_GPIO_BASE + 0x8)
+#define AVALANCHE_GPIO_ENBL (AVALANCHE_GPIO_BASE + 0xC)
+#define AVALANCHE_CVR (AVALANCHE_GPIO_BASE + 0x14)
+
+/*
+ * Yamon Prom print address.
+ */
+#define AVALANCHE_YAMON_FUNCTION_BASE (KSEG1ADDR(0x10000500))
+#define AVALANCHE_YAMON_PROM_PRINT_COUNT_ADDR (AVALANCHE_YAMON_FUNCTION_BASE + 0x4) /* print_count function */
+#define AVALANCHE_YAMON_PROM_PRINT_ADDR (AVALANCHE_YAMON_FUNCTION_BASE + 0x34)
+
+#define AVALANCHE_BASE_BAUD ( 3686400 / 16 )
+
+#define AVALANCHE_GPIO_PIN_COUNT 32
+#define AVALANCHE_GPIO_OFF_MAP {0xF34FFFC0}
+
+#include "sangam_boards.h"
+
+#endif /*_SANGAM_H_ */
diff -urN kernel-base/include/asm-mips/io.h kernel-tmp2/include/asm-mips/io.h
--- kernel-base/include/asm-mips/io.h 2005-07-10 03:00:44.797179400 +0200
+++ kernel-tmp2/include/asm-mips/io.h 2005-07-10 06:40:39.624260784 +0200
@@ -63,8 +63,12 @@
#ifdef CONFIG_64BIT_PHYS_ADDR
#define page_to_phys(page) ((u64)(page - mem_map) << PAGE_SHIFT)
#else
+#ifdef CONFIG_AR7_PAGING
+#define page_to_phys(page) (((page - mem_map) << PAGE_SHIFT) + CONFIG_AR7_MEMORY)
+#else
#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)
#endif
+#endif
#define IO_SPACE_LIMIT 0xffff
diff -urN kernel-base/include/asm-mips/irq.h kernel-tmp2/include/asm-mips/irq.h
--- kernel-base/include/asm-mips/irq.h 2005-07-10 03:00:44.798179248 +0200
+++ kernel-tmp2/include/asm-mips/irq.h 2005-07-10 06:40:39.624260784 +0200
@@ -14,7 +14,12 @@
#include <linux/config.h>
#include <linux/linkage.h>
+#ifdef CONFIG_AR7
+#include <asm/ar7/avalanche_intc.h>
+#define NR_IRQS AVALANCHE_INT_END + 1
+#else
#define NR_IRQS 128 /* Largest number of ints of all machines. */
+#endif
#ifdef CONFIG_I8259
static inline int irq_cannonicalize(int irq)
diff -urN kernel-base/include/asm-mips/page.h kernel-tmp2/include/asm-mips/page.h
--- kernel-base/include/asm-mips/page.h 2005-07-10 03:00:44.798179248 +0200
+++ kernel-tmp2/include/asm-mips/page.h 2005-07-10 06:40:39.625260632 +0200
@@ -129,7 +129,11 @@
#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
+#ifdef CONFIG_AR7_PAGING
+#define virt_to_page(kaddr) phys_to_page(__pa(kaddr))
+#else
#define virt_to_page(kaddr) (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
+#endif
#define VALID_PAGE(page) ((page - mem_map) < max_mapnr)
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
diff -urN kernel-base/include/asm-mips/pgtable-32.h kernel-tmp2/include/asm-mips/pgtable-32.h
--- kernel-base/include/asm-mips/pgtable-32.h 2005-07-10 03:00:44.798179248 +0200
+++ kernel-tmp2/include/asm-mips/pgtable-32.h 2005-07-10 06:40:39.625260632 +0200
@@ -108,7 +108,18 @@
* and a page entry and page directory to the page they refer to.
*/
-#ifdef CONFIG_CPU_VR41XX
+#if defined(CONFIG_AR7_PAGING)
+#define mk_pte(page, pgprot) \
+({ \
+ pte_t __pte; \
+ \
+ pte_val(__pte) = ((phys_t)(page - mem_map) << (PAGE_SHIFT) | \
+ CONFIG_AR7_MEMORY) | \
+ pgprot_val(pgprot); \
+ \
+ __pte; \
+})
+#elif defined(CONFIG_CPU_VR41XX)
#define mk_pte(page, pgprot) \
({ \
pte_t __pte; \
@@ -130,6 +141,7 @@
})
#endif
+
static inline pte_t mk_pte_phys(phys_t physpage, pgprot_t pgprot)
{
#ifdef CONFIG_CPU_VR41XX
@@ -175,7 +187,10 @@
set_pte(ptep, __pte(0));
}
-#ifdef CONFIG_CPU_VR41XX
+#if defined(CONFIG_AR7_PAGING)
+#define phys_to_page(phys) (mem_map + (((phys)-CONFIG_AR7_MEMORY) >> PAGE_SHIFT))
+#define pte_page(x) phys_to_page(pte_val(x))
+#elif defined(CONFIG_CPU_VR41XX)
#define pte_page(x) (mem_map+((unsigned long)(((x).pte_low >> (PAGE_SHIFT+2)))))
#define __mk_pte(page_nr,pgprot) __pte(((page_nr) << (PAGE_SHIFT+2)) | pgprot_val(pgprot))
#else
diff -urN kernel-base/include/asm-mips/serial.h kernel-tmp2/include/asm-mips/serial.h
--- kernel-base/include/asm-mips/serial.h 2005-07-10 03:00:44.799179096 +0200
+++ kernel-tmp2/include/asm-mips/serial.h 2005-07-10 06:40:39.625260632 +0200
@@ -65,6 +65,15 @@
#define C_P(card,port) (((card)<<6|(port)<<3) + 1)
+#ifdef CONFIG_AR7
+#include <asm/ar7/ar7.h>
+#define AR7_SERIAL_PORT_DEFNS \
+ { 0, AR7_BASE_BAUD, AR7_UART0_REGS_BASE, LNXINTNUM(AVALANCHE_UART0_INT), STD_COM_FLAGS }, \
+ { 0, AR7_BASE_BAUD, AR7_UART1_REGS_BASE, LNXINTNUM(AVALANCHE_UART1_INT), STD_COM_FLAGS },
+#else
+#define AR7_SERIAL_PORT_DEFNS
+#endif
+
#ifdef CONFIG_MIPS_JAZZ
#define _JAZZ_SERIAL_INIT(int, base) \
{ .baud_base = JAZZ_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS, \
@@ -468,6 +477,7 @@
#endif
#define SERIAL_PORT_DFNS \
+ AR7_SERIAL_PORT_DEFNS \
ATLAS_SERIAL_PORT_DEFNS \
AU1000_SERIAL_PORT_DEFNS \
COBALT_SERIAL_PORT_DEFNS \
diff -urN kernel-base/Makefile kernel-tmp2/Makefile
--- kernel-base/Makefile 2005-07-10 03:00:44.799179096 +0200
+++ kernel-tmp2/Makefile 2005-07-10 06:40:39.626260480 +0200
@@ -91,7 +91,7 @@
CPPFLAGS := -D__KERNEL__ -I$(HPATH)
-CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
+CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
-fno-strict-aliasing -fno-common
ifndef CONFIG_FRAME_POINTER
CFLAGS += -fomit-frame-pointer
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