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/*
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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 ([email protected])
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 * Copyright (C) 2006,2007 Thomas Bogendoerfer ([email protected])
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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/export.h>
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#include <linux/console.h>
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#include <linux/screen_info.h>
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#include <linux/string.h>
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#ifdef CONFIG_FW_ARC
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#include <asm/fw/arc/types.h>
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#include <asm/sgialib.h>
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#endif
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#ifdef CONFIG_FW_SNIPROM
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#include <asm/mipsprom.h>
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#endif
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#include <asm/bootinfo.h>
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#include <asm/cpu.h>
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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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EXPORT_SYMBOL(sni_brd_type);
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extern void sni_machine_restart(char *command);
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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_VGA_CONSOLE) && defined(CONFIG_FW_ARC)
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	static struct screen_info si;
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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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		vgacon_register_screen(&si);
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	}
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#endif
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}
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static void __init sni_console_setup(void)
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{
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#ifndef CONFIG_FW_ARC
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	char *ctype;
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	char *cdev;
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	char *baud;
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	int port;
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	static char options[8] __initdata;
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	cdev = prom_getenv("console_dev");
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	if (strncmp(cdev, "tty", 3) == 0) {
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		ctype = prom_getenv("console");
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		switch (*ctype) {
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		default:
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		case 'l':
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			port = 0;
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			baud = prom_getenv("lbaud");
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			break;
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		case 'r':
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			port = 1;
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			baud = prom_getenv("rbaud");
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			break;
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		}
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		if (baud)
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			strscpy(options, baud);
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		if (strncmp(cdev, "tty552", 6) == 0)
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			add_preferred_console("ttyS", port,
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					      baud ? options : NULL);
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		else
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			add_preferred_console("ttySC", port,
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					      baud ? options : NULL);
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	}
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#endif
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}
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#ifdef DEBUG
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static void __init sni_idprom_dump(void)
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{
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	int	i;
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	pr_debug("SNI IDProm dump:\n");
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	for (i = 0; i < 256; i++) {
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		if (i%16 == 0)
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			pr_debug("%04x ", i);
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		printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
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		if (i % 16 == 15)
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			printk("\n");
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	}
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}
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#endif
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void __init plat_mem_setup(void)
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{
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	int cputype;
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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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#ifdef CONFIG_EISA
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	EISA_bus = 1;
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#endif
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	sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
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	cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
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	switch (sni_brd_type) {
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	case SNI_BRD_TOWER_OASIC:
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		switch (cputype) {
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		case SNI_CPU_M8030:
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			system_type = "RM400-330";
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			break;
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		case SNI_CPU_M8031:
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			system_type = "RM400-430";
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			break;
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		case SNI_CPU_M8037:
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			system_type = "RM400-530";
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			break;
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		case SNI_CPU_M8034:
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			system_type = "RM400-730";
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			break;
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		default:
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			system_type = "RM400-xxx";
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			break;
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		}
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		break;
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	case SNI_BRD_MINITOWER:
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		switch (cputype) {
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		case SNI_CPU_M8021:
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		case SNI_CPU_M8043:
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			system_type = "RM400-120";
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			break;
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		case SNI_CPU_M8040:
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			system_type = "RM400-220";
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			break;
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		case SNI_CPU_M8053:
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			system_type = "RM400-225";
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			break;
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		case SNI_CPU_M8050:
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			system_type = "RM400-420";
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			break;
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		default:
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			system_type = "RM400-xxx";
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			break;
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		}
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		break;
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	case SNI_BRD_PCI_TOWER:
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		system_type = "RM400-Cxx";
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		break;
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	case SNI_BRD_RM200:
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		system_type = "RM200-xxx";
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		break;
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	case SNI_BRD_PCI_MTOWER:
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		system_type = "RM300-Cxx";
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		break;
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	case SNI_BRD_PCI_DESKTOP:
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		switch (read_c0_prid() & PRID_IMP_MASK) {
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		case PRID_IMP_R4600:
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		case PRID_IMP_R4700:
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			system_type = "RM200-C20";
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			break;
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		case PRID_IMP_R5000:
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			system_type = "RM200-C40";
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			break;
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		default:
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			system_type = "RM200-Cxx";
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			break;
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		}
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		break;
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	case SNI_BRD_PCI_TOWER_CPLUS:
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		system_type = "RM400-Exx";
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		break;
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	case SNI_BRD_PCI_MTOWER_CPLUS:
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		system_type = "RM300-Exx";
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		break;
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	}
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	pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
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#ifdef DEBUG
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	sni_idprom_dump();
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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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	pm_power_off = sni_machine_power_off;
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	sni_display_setup();
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	sni_console_setup();
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}
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#ifdef 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 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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