1/* 2 * Setup pointers to hardware-dependent routines. 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org) 9 * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de) 10 */ 11#include <linux/eisa.h> 12#include <linux/init.h> 13#include <linux/console.h> 14#include <linux/fb.h> 15#include <linux/screen_info.h> 16 17#ifdef CONFIG_ARC 18#include <asm/arc/types.h> 19#include <asm/sgialib.h> 20#endif 21 22#include <asm/io.h> 23#include <asm/reboot.h> 24#include <asm/sni.h> 25 26unsigned int sni_brd_type; 27 28extern void sni_machine_restart(char *command); 29extern void sni_machine_halt(void); 30extern void sni_machine_power_off(void); 31 32static void __init sni_display_setup(void) 33{ 34#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC) 35 struct screen_info *si = &screen_info; 36 DISPLAY_STATUS *di; 37 38 di = ArcGetDisplayStatus(1); 39 40 if (di) { 41 si->orig_x = di->CursorXPosition; 42 si->orig_y = di->CursorYPosition; 43 si->orig_video_cols = di->CursorMaxXPosition; 44 si->orig_video_lines = di->CursorMaxYPosition; 45 si->orig_video_isVGA = VIDEO_TYPE_VGAC; 46 si->orig_video_points = 16; 47 } 48#endif 49} 50 51 52void __init plat_mem_setup(void) 53{ 54 set_io_port_base(SNI_PORT_BASE); 55// ioport_resource.end = sni_io_resource.end; 56 57 /* 58 * Setup (E)ISA I/O memory access stuff 59 */ 60 isa_slot_offset = 0xb0000000; 61#ifdef CONFIG_EISA 62 EISA_bus = 1; 63#endif 64 65 switch (sni_brd_type) { 66 case SNI_BRD_10: 67 case SNI_BRD_10NEW: 68 case SNI_BRD_TOWER_OASIC: 69 case SNI_BRD_MINITOWER: 70 sni_a20r_init(); 71 break; 72 73 case SNI_BRD_PCI_TOWER: 74 case SNI_BRD_PCI_TOWER_CPLUS: 75 sni_pcit_init(); 76 break; 77 78 case SNI_BRD_RM200: 79 sni_rm200_init(); 80 break; 81 82 case SNI_BRD_PCI_MTOWER: 83 case SNI_BRD_PCI_DESKTOP: 84 case SNI_BRD_PCI_MTOWER_CPLUS: 85 sni_pcimt_init(); 86 break; 87 } 88 89 _machine_restart = sni_machine_restart; 90 _machine_halt = sni_machine_halt; 91 pm_power_off = sni_machine_power_off; 92 93 sni_display_setup(); 94} 95 96#if CONFIG_PCI 97 98#include <linux/pci.h> 99#include <video/vga.h> 100#include <video/cirrus.h> 101 102static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev) 103{ 104 u16 cmd; 105 106 /* 107 * firmware doesn't set the ram size correct, so we 108 * need to do it here, otherwise we get screen corruption 109 * on older Cirrus chips 110 */ 111 pci_read_config_word (dev, PCI_COMMAND, &cmd); 112 if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) 113 == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) { 114 vga_wseq (NULL, CL_SEQR6, 0x12); /* unlock all extension registers */ 115 vga_wseq (NULL, CL_SEQRF, 0x18); 116 } 117} 118 119DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8, 120 quirk_cirrus_ram_size); 121DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436, 122 quirk_cirrus_ram_size); 123DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 124 quirk_cirrus_ram_size); 125#endif 126