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kernel-fxtec-pro1x/arch/mips/sni/setup.c
Thomas Bogendoerfer 231a35d372 [MIPS] RM: Collected changes 
- EISA support for non PCI RMs (RM200 and RM400-xxx). The major part
  is the splitting of the EISA and onboard ISA of the RM200, which
  makes the EISA bus on the RM200 look like on other RMs.
- 64bit kernel support
- system type detection is now common for big and little endian
- moved sniprom code to arch/mips/fw
- added call_o32 function to arch/mips/fw/lib, which uses a private
  stack for calling prom functions
- fix problem with ISA interrupts, which makes using PIT clockevent
  possible

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29 10:14:59 +00:00

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/*
* Setup pointers to hardware-dependent routines.
*
* 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) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
* Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
*/
#include <linux/eisa.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/fb.h>
#include <linux/screen_info.h>
#ifdef CONFIG_ARC
#include <asm/fw/arc/types.h>
#include <asm/sgialib.h>
#endif
#ifdef CONFIG_SNIPROM
#include <asm/mipsprom.h>
#endif
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/reboot.h>
#include <asm/sni.h>
unsigned int sni_brd_type;
EXPORT_SYMBOL(sni_brd_type);
extern void sni_machine_restart(char *command);
extern void sni_machine_power_off(void);
static void __init sni_display_setup(void)
{
#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
struct screen_info *si = &screen_info;
DISPLAY_STATUS *di;
di = ArcGetDisplayStatus(1);
if (di) {
si->orig_x = di->CursorXPosition;
si->orig_y = di->CursorYPosition;
si->orig_video_cols = di->CursorMaxXPosition;
si->orig_video_lines = di->CursorMaxYPosition;
si->orig_video_isVGA = VIDEO_TYPE_VGAC;
si->orig_video_points = 16;
}
#endif
}
static void __init sni_console_setup(void)
{
#ifndef CONFIG_ARC
char *ctype;
char *cdev;
char *baud;
int port;
static char options[8];
cdev = prom_getenv("console_dev");
if (strncmp(cdev, "tty", 3) == 0) {
ctype = prom_getenv("console");
switch (*ctype) {
default:
case 'l':
port = 0;
baud = prom_getenv("lbaud");
break;
case 'r':
port = 1;
baud = prom_getenv("rbaud");
break;
}
if (baud)
strcpy(options, baud);
if (strncmp(cdev, "tty552", 6) == 0)
add_preferred_console("ttyS", port,
baud ? options : NULL);
else
add_preferred_console("ttySC", port,
baud ? options : NULL);
}
#endif
}
#ifdef DEBUG
static void __init sni_idprom_dump(void)
{
int i;
pr_debug("SNI IDProm dump:\n");
for (i = 0; i < 256; i++) {
if (i%16 == 0)
pr_debug("%04x ", i);
printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
if (i % 16 == 15)
printk("\n");
}
}
#endif
void __init plat_mem_setup(void)
{
int cputype;
set_io_port_base(SNI_PORT_BASE);
// ioport_resource.end = sni_io_resource.end;
/*
* Setup (E)ISA I/O memory access stuff
*/
isa_slot_offset = CKSEG1ADDR(0xb0000000);
#ifdef CONFIG_EISA
EISA_bus = 1;
#endif
sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
switch (sni_brd_type) {
case SNI_BRD_TOWER_OASIC:
switch (cputype) {
case SNI_CPU_M8030:
system_type = "RM400-330";
break;
case SNI_CPU_M8031:
system_type = "RM400-430";
break;
case SNI_CPU_M8037:
system_type = "RM400-530";
break;
case SNI_CPU_M8034:
system_type = "RM400-730";
break;
default:
system_type = "RM400-xxx";
break;
}
break;
case SNI_BRD_MINITOWER:
switch (cputype) {
case SNI_CPU_M8021:
case SNI_CPU_M8043:
system_type = "RM400-120";
break;
case SNI_CPU_M8040:
system_type = "RM400-220";
break;
case SNI_CPU_M8053:
system_type = "RM400-225";
break;
case SNI_CPU_M8050:
system_type = "RM400-420";
break;
default:
system_type = "RM400-xxx";
break;
}
break;
case SNI_BRD_PCI_TOWER:
system_type = "RM400-Cxx";
break;
case SNI_BRD_RM200:
system_type = "RM200-xxx";
break;
case SNI_BRD_PCI_MTOWER:
system_type = "RM300-Cxx";
break;
case SNI_BRD_PCI_DESKTOP:
switch (read_c0_prid() & 0xff00) {
case PRID_IMP_R4600:
case PRID_IMP_R4700:
system_type = "RM200-C20";
break;
case PRID_IMP_R5000:
system_type = "RM200-C40";
break;
default:
system_type = "RM200-Cxx";
break;
}
break;
case SNI_BRD_PCI_TOWER_CPLUS:
system_type = "RM400-Exx";
break;
case SNI_BRD_PCI_MTOWER_CPLUS:
system_type = "RM300-Exx";
break;
}
pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
#ifdef DEBUG
sni_idprom_dump();
#endif
switch (sni_brd_type) {
case SNI_BRD_10:
case SNI_BRD_10NEW:
case SNI_BRD_TOWER_OASIC:
case SNI_BRD_MINITOWER:
sni_a20r_init();
break;
case SNI_BRD_PCI_TOWER:
case SNI_BRD_PCI_TOWER_CPLUS:
sni_pcit_init();
break;
case SNI_BRD_RM200:
sni_rm200_init();
break;
case SNI_BRD_PCI_MTOWER:
case SNI_BRD_PCI_DESKTOP:
case SNI_BRD_PCI_MTOWER_CPLUS:
sni_pcimt_init();
break;
}
_machine_restart = sni_machine_restart;
pm_power_off = sni_machine_power_off;
sni_display_setup();
sni_console_setup();
}
#ifdef CONFIG_PCI
#include <linux/pci.h>
#include <video/vga.h>
#include <video/cirrus.h>
static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
{
u16 cmd;
/*
* firmware doesn't set the ram size correct, so we
* need to do it here, otherwise we get screen corruption
* on older Cirrus chips
*/
pci_read_config_word(dev, PCI_COMMAND, &cmd);
if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
== (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
vga_wseq(NULL, CL_SEQR6, 0x12); /* unlock all extension registers */
vga_wseq(NULL, CL_SEQRF, 0x18);
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
quirk_cirrus_ram_size);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
quirk_cirrus_ram_size);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
quirk_cirrus_ram_size);
#endif
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