22df5bc591
... by setting DRAM config to 2MB (SNI always used that size). This also fixes video dram size detection in cirrusfb. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
126 lines
3.0 KiB
C
126 lines
3.0 KiB
C
/*
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* Setup pointers to hardware-dependent routines.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
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* Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
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*/
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#include <linux/eisa.h>
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#include <linux/init.h>
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#include <linux/console.h>
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#include <linux/fb.h>
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#include <linux/screen_info.h>
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#ifdef CONFIG_ARC
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#include <asm/arc/types.h>
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#include <asm/sgialib.h>
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#endif
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#include <asm/io.h>
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#include <asm/reboot.h>
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#include <asm/sni.h>
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unsigned int sni_brd_type;
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extern void sni_machine_restart(char *command);
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extern void sni_machine_halt(void);
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extern void sni_machine_power_off(void);
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static void __init sni_display_setup(void)
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{
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#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
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struct screen_info *si = &screen_info;
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DISPLAY_STATUS *di;
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di = ArcGetDisplayStatus(1);
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if (di) {
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si->orig_x = di->CursorXPosition;
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si->orig_y = di->CursorYPosition;
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si->orig_video_cols = di->CursorMaxXPosition;
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si->orig_video_lines = di->CursorMaxYPosition;
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si->orig_video_isVGA = VIDEO_TYPE_VGAC;
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si->orig_video_points = 16;
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}
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#endif
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}
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void __init plat_mem_setup(void)
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{
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set_io_port_base(SNI_PORT_BASE);
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// ioport_resource.end = sni_io_resource.end;
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/*
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* Setup (E)ISA I/O memory access stuff
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*/
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isa_slot_offset = 0xb0000000;
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#ifdef CONFIG_EISA
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EISA_bus = 1;
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#endif
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switch (sni_brd_type) {
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case SNI_BRD_10:
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case SNI_BRD_10NEW:
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case SNI_BRD_TOWER_OASIC:
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case SNI_BRD_MINITOWER:
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sni_a20r_init();
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break;
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case SNI_BRD_PCI_TOWER:
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case SNI_BRD_PCI_TOWER_CPLUS:
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sni_pcit_init();
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break;
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case SNI_BRD_RM200:
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sni_rm200_init();
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break;
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case SNI_BRD_PCI_MTOWER:
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case SNI_BRD_PCI_DESKTOP:
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case SNI_BRD_PCI_MTOWER_CPLUS:
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sni_pcimt_init();
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break;
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}
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_machine_restart = sni_machine_restart;
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_machine_halt = sni_machine_halt;
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pm_power_off = sni_machine_power_off;
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sni_display_setup();
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}
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#if CONFIG_PCI
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#include <linux/pci.h>
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#include <video/vga.h>
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#include <video/cirrus.h>
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static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
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{
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u16 cmd;
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/*
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* firmware doesn't set the ram size correct, so we
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* need to do it here, otherwise we get screen corruption
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* on older Cirrus chips
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*/
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pci_read_config_word (dev, PCI_COMMAND, &cmd);
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if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
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== (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
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vga_wseq (NULL, CL_SEQR6, 0x12); /* unlock all extension registers */
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vga_wseq (NULL, CL_SEQRF, 0x18);
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
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quirk_cirrus_ram_size);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
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quirk_cirrus_ram_size);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
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quirk_cirrus_ram_size);
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#endif
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