patch-2.3.35 linux/arch/ppc/kernel/mbx_setup.c

• Lines: 487
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.34/linux/arch/ppc/kernel/mbx_setup.c
• Orig date: Fri Oct 22 13:21:45 1999

diff -u --recursive --new-file v2.3.34/linux/arch/ppc/kernel/mbx_setup.c linux/arch/ppc/kernel/mbx_setup.c
@@ -1,486 +0,0 @@
-/*
- * $Id: mbx_setup.c,v 1.12 1999/08/31 06:53:56 davem Exp $
- *
- *  linux/arch/ppc/kernel/setup.c
- *
- *  Copyright (C) 1995  Linus Torvalds
- *  Adapted from 'alpha' version by Gary Thomas
- *  Modified by Cort Dougan (cort@cs.nmt.edu)
- *  Modified for MBX using prep/chrp/pmac functions by Dan (dmalek@jlc.net)
- */
-
-/*
- * bootup setup stuff..
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/malloc.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/major.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/blk.h>
-#include <linux/ide.h>
-#include <linux/ioport.h>
-
-#include <asm/mmu.h>
-#include <asm/processor.h>
-#include <asm/residual.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/mbx.h>
-#include <asm/machdep.h>
-
-#include "time.h"
-#include "local_irq.h"
-
-static int mbx_set_rtc_time(unsigned long time);
-unsigned long mbx_get_rtc_time(void);
-void mbx_calibrate_decr(void);
-
-extern int mackbd_setkeycode(unsigned int scancode, unsigned int keycode);
-extern int mackbd_getkeycode(unsigned int scancode);
-extern int mackbd_translate(unsigned char scancode, unsigned char *keycode,
-			   char raw_mode);
-extern char mackbd_unexpected_up(unsigned char keycode);
-extern void mackbd_leds(unsigned char leds);
-extern void mackbd_init_hw(void);
-
-extern unsigned long loops_per_sec;
-
-unsigned long empty_zero_page[1024];
-
-#ifdef CONFIG_BLK_DEV_RAM
-extern int rd_doload;		/* 1 = load ramdisk, 0 = don't load */
-extern int rd_prompt;		/* 1 = prompt for ramdisk, 0 = don't prompt */
-extern int rd_image_start;	/* starting block # of image */
-#endif
-
-extern char saved_command_line[256];
-
-extern unsigned long find_available_memory(void);
-extern void m8xx_cpm_reset(uint);
-
-void __init adbdev_init(void)
-{
-}
-
-void __init
-mbx_setup_arch(void)
-{
-	int	cpm_page;
-	extern char cmd_line[];
-	
-	cpm_page = (int) alloc_bootmem_pages(PAGE_SIZE);
-	
-	sprintf(cmd_line,
-"%s root=/dev/nfs nfsroot=/sys/mbxroot",
-		cmd_line);
-	printk("Boot arguments: %s\n", cmd_line);
-
-	/* Reset the Communication Processor Module.
-	*/
-	m8xx_cpm_reset(cpm_page);
-
-#ifdef notdef
-	ROOT_DEV = to_kdev_t(0x0301); /* hda1 */
-#endif
-	
-#ifdef CONFIG_BLK_DEV_INITRD
-#if 0
-	ROOT_DEV = to_kdev_t(0x0200); /* floppy */  
-	rd_prompt = 1;
-	rd_doload = 1;
-	rd_image_start = 0;
-#endif
-#if 0	/* XXX this may need to be updated for the new bootmem stuff,
-	   or possibly just deleted (see set_phys_avail() in init.c).
-	   - paulus. */
-	/* initrd_start and size are setup by boot/head.S and kernel/head.S */
-	if ( initrd_start )
-	{
-		if (initrd_end > *memory_end_p)
-		{
-			printk("initrd extends beyond end of memory "
-			       "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
-			       initrd_end,*memory_end_p);
-			initrd_start = 0;
-		}
-	}
-#endif
-#endif
-
-#ifdef notdef
-	request_region(0x20,0x20,"pic1");
-	request_region(0xa0,0x20,"pic2");
-	request_region(0x00,0x20,"dma1");
-	request_region(0x40,0x20,"timer");
-	request_region(0x80,0x10,"dma page reg");
-	request_region(0xc0,0x20,"dma2");
-#endif
-}
-
-void
-abort(void)
-{
-#ifdef CONFIG_XMON
-	extern void xmon(void *);
-	xmon(0);
-#endif
-	machine_restart(NULL);
-}
-
-/* The decrementer counts at the system (internal) clock frequency divided by
- * sixteen, or external oscillator divided by four.  Currently, we only
- * support the MBX, which is system clock divided by sixteen.
- */
-void __init mbx_calibrate_decr(void)
-{
-	bd_t	*binfo = (bd_t *)&res;
-	int freq, fp, divisor;
-
-	if ((((immap_t *)MBX_IMAP_ADDR)->im_clkrst.car_sccr & 0x02000000) == 0)
-		printk("WARNING: Wrong decrementer source clock.\n");
-
-	/* The manual says the frequency is in Hz, but it is really
-	 * as MHz.  The value 'fp' is the number of decrementer ticks
-	 * per second.
-	 */
-	fp = (binfo->bi_intfreq * 1000000) / 16;
-	freq = fp*60;	/* try to make freq/1e6 an integer */
-        divisor = 60;
-        printk("time_init: decrementer frequency = %d/%d\n", freq, divisor);
-        decrementer_count = freq / HZ / divisor;
-        count_period_num = divisor;
-        count_period_den = freq / 1000000;
-}
-
-/* A place holder for time base interrupts, if they are ever enabled.
-*/
-void timebase_interrupt(int irq, void * dev, struct pt_regs * regs)
-{
-	printk("timebase_interrupt()\n");
-}
-
-/* The RTC on the MPC8xx is an internal register.
- * We want to protect this during power down, so we need to unlock,
- * modify, and re-lock.
- */
-static int
-mbx_set_rtc_time(unsigned long time)
-{
-	((immap_t *)MBX_IMAP_ADDR)->im_sitk.sitk_rtck = KAPWR_KEY;
-	((immap_t *)MBX_IMAP_ADDR)->im_sit.sit_rtc = time;
-	((immap_t *)MBX_IMAP_ADDR)->im_sitk.sitk_rtck = ~KAPWR_KEY;
-	return(0);
-}
-
-unsigned long __init mbx_get_rtc_time(void)
-{
-	/* First, unlock all of the registers we are going to modify.
-	 * To protect them from corruption during power down, registers
-	 * that are maintained by keep alive power are "locked".  To
-	 * modify these registers we have to write the key value to
-	 * the key location associated with the register.
-	 */
-	((immap_t *)MBX_IMAP_ADDR)->im_sitk.sitk_tbscrk = KAPWR_KEY;
-	((immap_t *)MBX_IMAP_ADDR)->im_sitk.sitk_rtcsck = KAPWR_KEY;
-
-
-	/* Disable the RTC one second and alarm interrupts.
-	*/
-	((immap_t *)MBX_IMAP_ADDR)->im_sit.sit_rtcsc &=
-						~(RTCSC_SIE | RTCSC_ALE);
-
-	/* Enabling the decrementer also enables the timebase interrupts
-	 * (or from the other point of view, to get decrementer interrupts
-	 * we have to enable the timebase).  The decrementer interrupt
-	 * is wired into the vector table, nothing to do here for that.
-	 */
-	((immap_t *)MBX_IMAP_ADDR)->im_sit.sit_tbscr =
-				((mk_int_int_mask(DEC_INTERRUPT) << 8) |
-					 (TBSCR_TBF | TBSCR_TBE));
-	if (request_irq(DEC_INTERRUPT, timebase_interrupt, 0, "tbint", NULL) != 0)
-		panic("Could not allocate timer IRQ!");
-
-	/* Get time from the RTC.
-	*/
-	return ((immap_t *)MBX_IMAP_ADDR)->im_sit.sit_rtc;
-}
-
-void
-mbx_restart(char *cmd)
-{
-	extern void MBX_gorom(void);
-
-	MBX_gorom();
-}
-
-void
-mbx_power_off(void)
-{
-   mbx_restart(NULL);
-}
-
-void
-mbx_halt(void)
-{
-   mbx_restart(NULL)
-}
-
-
-int mbx_setup_residual(char *buffer)
-{
-        int     len = 0;
-	bd_t	*bp;
-	extern	RESIDUAL *res;
-			
-	bp = (bd_t *)res;
-			
-	len += sprintf(len+buffer,"clock\t\t: %dMHz\n"
-		       "bus clock\t: %dMHz\n",
-		       bp->bi_intfreq /*/ 1000000*/,
-		       bp->bi_busfreq /*/ 1000000*/);
-
-	return len;
-}
-
-void
-mbx_do_IRQ(struct pt_regs *regs,
-	   int            cpu,
-           int            isfake)
-{
-	int irq;
-        unsigned long bits = 0;
-
-        /* For MPC8xx, read the SIVEC register and shift the bits down
-         * to get the irq number.         */
-        bits = ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_sivec;
-        irq = bits >> 26;
-        irq += ppc8xx_pic.irq_offset;
-        bits = 1UL << irq;
-
-	if (irq < 0) {
-		printk(KERN_DEBUG "Bogus interrupt %d from PC = %lx\n",
-		       irq, regs->nip);
-		spurious_interrupts++;
-	}
-	else {
-                ppc_irq_dispatch_handler( regs, irq );
-	}
-
-}
-
-static void mbx_i8259_action(int cpl, void *dev_id, struct pt_regs *regs)
-{
-	int bits, irq;
-
-	/* A bug in the QSpan chip causes it to give us 0xff always
-	 * when doing a character read.  So read 32 bits and shift.
-	 * This doesn't seem to return useful values anyway, but
-	 * read it to make sure things are acked.
-	 * -- Cort
-	 */
-	irq = (inl(0x508) >> 24)&0xff;
-	if ( irq != 0xff ) printk("iack %d\n", irq);
-	
-	outb(0x0C, 0x20);
-	irq = inb(0x20) & 7;
-	if (irq == 2)
-	{
-		outb(0x0C, 0xA0);
-		irq = inb(0xA0);
-		irq = (irq&7) + 8;
-	}
-	bits = 1UL << irq;
-	irq += i8259_pic.irq_offset;
-	ppc_irq_dispatch_handler( regs, irq );
-}
-
-
-/* On MBX8xx, the interrupt control (SIEL) was set by EPPC-bug.  External
- * interrupts can be either edge or level triggered, but there is no
- * reason for us to change the EPPC-bug values (it would not work if we did).
- */
-void __init
-mbx_init_IRQ(void)
-{
-	int i;
-
-        ppc8xx_pic.irq_offset = 16;
-        for ( i = 16 ; i < 32 ; i++ )
-                irq_desc[i].ctl = &ppc8xx_pic;
-        unmask_irq(CPM_INTERRUPT);
-
-        for ( i = 0 ; i < 16 ; i++ )
-                irq_desc[i].ctl = &i8259_pic;
-        i8259_init();
-        request_irq(ISA_BRIDGE_INT, mbx_i8259_action, 0, "8259 cascade", NULL);
-        enable_irq(ISA_BRIDGE_INT);
-}
-
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
-/*
- * IDE stuff.
- */
-void
-mbx_ide_insw(ide_ioreg_t port, void *buf, int ns)
-{
-	ide_insw(port+_IO_BASE), buf, ns);
-}
-
-void
-mbx_ide_outsw(ide_ioreg_t port, void *buf, int ns)
-{
-	ide_outsw(port+_IO_BASE, buf, ns);
-}
-
-int
-mbx_ide_default_irq(ide_ioreg_t base)
-{
-        return 14;
-}
-
-ide_ioreg_t
-mbx_ide_default_io_base(int index)
-{
-        return index;
-}
-
-int
-mbx_ide_check_region(ide_ioreg_t from, unsigned int extent)
-{
-        return 0
-}
-
-void
-mbx_ide_request_region(ide_ioreg_t from,
-			unsigned int extent,
-			const char *name)
-{
-}
-
-void
-mbx_ide_release_region(ide_ioreg_t from,
-			unsigned int extent)
-{
-}
-
-void
-mbx_ide_fix_driveid(struct hd_driveid *id)
-{
-        ppc_generic_ide_fix_driveid(id);
-}
-
-void
-mbx_ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
-{
-	ide_ioreg_t reg = data_port;
-	int i;
-
-	*irq = 0;
-
-	if (data_port != 0)	/* Only map the first ATA flash drive */
-		return;
-
-#ifdef ATA_FLASH
-
-	reg = (ide_ioreg_t) ioremap(PCMCIA_MEM_ADDR, 0x200);
-
-	for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
-		hw->io_ports[i] = reg;
-		reg += 1;
-	}
-
-	/* Does not matter */
-
-	if (ctrl_port) {
-		hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
-	} else {
-		hw->io_ports[IDE_CONTROL_OFFSET] = reg;
-	}
-	if (irq)
-		hw->irq = 13;
-#endif
-}
-#endif
-
-void __init
-mbx_init(unsigned long r3, unsigned long r4, unsigned long r5,
-	 unsigned long r6, unsigned long r7)
-{
-
-	if ( r3 )
-		memcpy( (void *)&res,(void *)(r3+KERNELBASE), sizeof(bd_t) );
-	
-#ifdef CONFIG_PCI
-	mbx_setup_pci_ptrs();
-#endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	/* take care of initrd if we have one */
-	if ( r4 )
-	{
-		initrd_start = r4 + KERNELBASE;
-		initrd_end = r5 + KERNELBASE;
-	}
-#endif /* CONFIG_BLK_DEV_INITRD */
-	/* take care of cmd line */
-	if ( r6 )
-	{
-		
-		*(char *)(r7+KERNELBASE) = 0;
-		strcpy(cmd_line, (char *)(r6+KERNELBASE));
-	}
-
-	ppc_md.setup_arch     = mbx_setup_arch;
-	ppc_md.setup_residual = mbx_setup_residual;
-	ppc_md.get_cpuinfo    = NULL;
-	ppc_md.irq_cannonicalize = NULL;
-	ppc_md.init_IRQ       = mbx_init_IRQ;
-	ppc_md.do_IRQ         = mbx_do_IRQ;
-	ppc_md.init           = NULL;
-
-	ppc_md.restart        = mbx_restart;
-	ppc_md.power_off      = mbx_power_off;
-	ppc_md.halt           = mbx_halt;
-
-	ppc_md.time_init      = NULL;
-	ppc_md.set_rtc_time   = mbx_set_rtc_time;
-	ppc_md.get_rtc_time   = mbx_get_rtc_time;
-	ppc_md.calibrate_decr = mbx_calibrate_decr;
-
-	ppc_md.kbd_setkeycode    = pckbd_setkeycode;
-	ppc_md.kbd_getkeycode    = pckbd_getkeycode;
-	ppc_md.kbd_translate     = pckbd_translate;
-	ppc_md.kbd_unexpected_up = pckbd_unexpected_up;
-	ppc_md.kbd_leds          = pckbd_leds;
-	ppc_md.kbd_init_hw       = pckbd_init_hw;
-#ifdef CONFIG_MAGIC_SYSRQ
-	ppc_md.kbd_sysrq_xlate	 = pckbd_sysrq_xlate;
-#endif
-
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
-        ppc_ide_md.insw = mbx_ide_insw;
-        ppc_ide_md.outsw = mbx_ide_outsw;
-        ppc_ide_md.default_irq = mbx_ide_default_irq;
-        ppc_ide_md.default_io_base = mbx_ide_default_io_base;
-        ppc_ide_md.ide_check_region = mbx_ide_check_region;
-        ppc_ide_md.ide_request_region = mbx_ide_request_region;
-        ppc_ide_md.ide_release_region = mbx_ide_release_region;
-        ppc_ide_md.fix_driveid = mbx_ide_fix_driveid;
-        ppc_ide_md.ide_init_hwif = mbx_ide_init_hwif_ports;
-
-        ppc_ide_md.io_base = _IO_BASE;
-#endif		
-}