patch-2.1.97 linux/arch/ppc/kernel/mbx_setup.c

• Lines: 170
• Date: Tue Apr 14 17:33:57 1998
• Orig file: v2.1.96/linux/arch/ppc/kernel/mbx_setup.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.96/linux/arch/ppc/kernel/mbx_setup.c linux/arch/ppc/kernel/mbx_setup.c
@@ -0,0 +1,169 @@
+/*
+ *  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/ioport.h>
+
+#include <asm/mmu.h>
+#include <asm/processor.h>
+#include <asm/residual.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/ide.h>
+#include <asm/mbx.h>
+
+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 mbx_cpm_reset(uint);
+
+
+void mbx_ide_init_hwif_ports(ide_ioreg_t *p, ide_ioreg_t base, int *irq)
+{
+
+	*p = 0;
+	*irq = 0;
+
+	if (base != 0)		/* Only map the first ATA flash drive */
+		return;
+#ifdef ATA_FLASH
+	base = (unsigned long) ioremap(PCMCIA_MEM_ADDR, 0x200);
+	for (i = 0; i < 8; ++i)
+		*p++ = base++;
+	*p = ++base;		/* Does not matter */
+	if (irq)
+		*irq = 13;
+#endif
+}
+
+int
+mbx_get_cpuinfo(char *buffer)
+{
+	int	pvr = _get_PVR();
+	int	len;
+	char	*model;
+	bd_t	*bp;
+	extern	RESIDUAL res;
+  
+	/* I know the MPC860 is 0x50.  I don't have the book handy
+	 * to check the others.
+	 */
+	if ((pvr>>16) == 0x50)
+		model = "MPC860";
+	else
+		model = "unknown";
+
+#ifdef __SMP__
+#define CD(X)		(cpu_data[n].X)  
+#else
+#define CD(X) (X)
+#define CPUN 0
+#endif
+	bp = (bd_t *)&res;
+
+	len = sprintf(buffer,"processor\t: %d\n"
+		      "cpu\t\t: %s\n"
+		      "revision\t: %d.%d\n"
+		      "clock\t\t: %d MHz\n"
+		      "bus clock\t: %d MHz\n",
+		      CPUN,
+		      model,
+		      MAJOR(pvr), MINOR(pvr),
+		      bp->bi_intfreq / 1000000,
+		      bp->bi_busfreq / 1000000
+		);
+  
+	return len;
+}
+
+__initfunc(void
+mbx_setup_arch(unsigned long * memory_start_p, unsigned long * memory_end_p))
+{
+	int	cpm_page;
+
+	cpm_page = *memory_start_p;
+	*memory_start_p += PAGE_SIZE;
+
+	/* Reset the Communication Processor Module.
+	*/
+	mbx_cpm_reset(cpm_page);
+
+#ifdef notdef
+	ROOT_DEV = to_kdev_t(0x0301); /* hda1 */
+#endif
+	
+#ifdef CONFIG_BLK_DEV_RAM
+#if 0
+	ROOT_DEV = to_kdev_t(0x0200); /* floppy */  
+	rd_prompt = 1;
+	rd_doload = 1;
+	rd_image_start = 0;
+#endif
+	/* 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
+
+#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);
+}