diff options
Diffstat (limited to 'arch/i386/kernel/summit_32.c')
| -rw-r--r-- | arch/i386/kernel/summit_32.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/arch/i386/kernel/summit_32.c b/arch/i386/kernel/summit_32.c deleted file mode 100644 index d0e01a3acf3..00000000000 --- a/arch/i386/kernel/summit_32.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * arch/i386/kernel/summit.c - IBM Summit-Specific Code - * - * Written By: Matthew Dobson, IBM Corporation - * - * Copyright (c) 2003 IBM Corp. - * - * All rights reserved. - * - * 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, GOOD TITLE or - * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Send feedback to <colpatch@us.ibm.com> - * - */ - -#include <linux/mm.h> -#include <linux/init.h> -#include <asm/io.h> -#include <asm/mach-summit/mach_mpparse.h> - -static struct rio_table_hdr *rio_table_hdr __initdata; -static struct scal_detail *scal_devs[MAX_NUMNODES] __initdata; -static struct rio_detail *rio_devs[MAX_NUMNODES*4] __initdata; - -static int __init setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus) -{ - int twister = 0, node = 0; - int i, bus, num_buses; - - for(i = 0; i < rio_table_hdr->num_rio_dev; i++){ - if (rio_devs[i]->node_id == rio_devs[wpeg_num]->owner_id){ - twister = rio_devs[i]->owner_id; - break; - } - } - if (i == rio_table_hdr->num_rio_dev){ - printk(KERN_ERR "%s: Couldn't find owner Cyclone for Winnipeg!\n", __FUNCTION__); - return last_bus; - } - - for(i = 0; i < rio_table_hdr->num_scal_dev; i++){ - if (scal_devs[i]->node_id == twister){ - node = scal_devs[i]->node_id; - break; - } - } - if (i == rio_table_hdr->num_scal_dev){ - printk(KERN_ERR "%s: Couldn't find owner Twister for Cyclone!\n", __FUNCTION__); - return last_bus; - } - - switch (rio_devs[wpeg_num]->type){ - case CompatWPEG: - /* The Compatability Winnipeg controls the 2 legacy buses, - * the 66MHz PCI bus [2 slots] and the 2 "extra" buses in case - * a PCI-PCI bridge card is used in either slot: total 5 buses. - */ - num_buses = 5; - break; - case AltWPEG: - /* The Alternate Winnipeg controls the 2 133MHz buses [1 slot - * each], their 2 "extra" buses, the 100MHz bus [2 slots] and - * the "extra" buses for each of those slots: total 7 buses. - */ - num_buses = 7; - break; - case LookOutAWPEG: - case LookOutBWPEG: - /* A Lookout Winnipeg controls 3 100MHz buses [2 slots each] - * & the "extra" buses for each of those slots: total 9 buses. - */ - num_buses = 9; - break; - default: - printk(KERN_INFO "%s: Unsupported Winnipeg type!\n", __FUNCTION__); - return last_bus; - } - - for(bus = last_bus; bus < last_bus + num_buses; bus++) - mp_bus_id_to_node[bus] = node; - return bus; -} - -static int __init build_detail_arrays(void) -{ - unsigned long ptr; - int i, scal_detail_size, rio_detail_size; - - if (rio_table_hdr->num_scal_dev > MAX_NUMNODES){ - printk(KERN_WARNING "%s: MAX_NUMNODES too low! Defined as %d, but system has %d nodes.\n", __FUNCTION__, MAX_NUMNODES, rio_table_hdr->num_scal_dev); - return 0; - } - - switch (rio_table_hdr->version){ - default: - printk(KERN_WARNING "%s: Invalid Rio Grande Table Version: %d\n", __FUNCTION__, rio_table_hdr->version); - return 0; - case 2: - scal_detail_size = 11; - rio_detail_size = 13; - break; - case 3: - scal_detail_size = 12; - rio_detail_size = 15; - break; - } - - ptr = (unsigned long)rio_table_hdr + 3; - for(i = 0; i < rio_table_hdr->num_scal_dev; i++, ptr += scal_detail_size) - scal_devs[i] = (struct scal_detail *)ptr; - - for(i = 0; i < rio_table_hdr->num_rio_dev; i++, ptr += rio_detail_size) - rio_devs[i] = (struct rio_detail *)ptr; - - return 1; -} - -void __init setup_summit(void) -{ - unsigned long ptr; - unsigned short offset; - int i, next_wpeg, next_bus = 0; - - /* The pointer to the EBDA is stored in the word @ phys 0x40E(40:0E) */ - ptr = *(unsigned short *)phys_to_virt(0x40Eul); - ptr = (unsigned long)phys_to_virt(ptr << 4); - - rio_table_hdr = NULL; - offset = 0x180; - while (offset){ - /* The block id is stored in the 2nd word */ - if (*((unsigned short *)(ptr + offset + 2)) == 0x4752){ - /* set the pointer past the offset & block id */ - rio_table_hdr = (struct rio_table_hdr *)(ptr + offset + 4); - break; - } - /* The next offset is stored in the 1st word. 0 means no more */ - offset = *((unsigned short *)(ptr + offset)); - } - if (!rio_table_hdr){ - printk(KERN_ERR "%s: Unable to locate Rio Grande Table in EBDA - bailing!\n", __FUNCTION__); - return; - } - - if (!build_detail_arrays()) - return; - - /* The first Winnipeg we're looking for has an index of 0 */ - next_wpeg = 0; - do { - for(i = 0; i < rio_table_hdr->num_rio_dev; i++){ - if (is_WPEG(rio_devs[i]) && rio_devs[i]->WP_index == next_wpeg){ - /* It's the Winnipeg we're looking for! */ - next_bus = setup_pci_node_map_for_wpeg(i, next_bus); - next_wpeg++; - break; - } - } - /* - * If we go through all Rio devices and don't find one with - * the next index, it means we've found all the Winnipegs, - * and thus all the PCI buses. - */ - if (i == rio_table_hdr->num_rio_dev) - next_wpeg = 0; - } while (next_wpeg != 0); -} |