Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 248 insertions, 0 deletions

diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
new file mode 100644
index 00000000000..f469d916073
--- /dev/null
+++ b/arch/h8300/kernel/setup.c
@@ -0,0 +1,248 @@
+/*
+ *  linux/arch/h8300/kernel/setup.c
+ *
+ *  Copyleft  ()) 2000       James D. Schettine {james@telos-systems.com}
+ *  Copyright (C) 1999,2000  Greg Ungerer (gerg@snapgear.com)
+ *  Copyright (C) 1998,1999  D. Jeff Dionne <jeff@lineo.ca>
+ *  Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
+ *  Copyright (C) 1995       Hamish Macdonald
+ *  Copyright (C) 2000       Lineo Inc. (www.lineo.com) 
+ *  Copyright (C) 2001 	     Lineo, Inc. <www.lineo.com>
+ *
+ *  H8/300 porting Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+/*
+ * This file handles the architecture-dependent parts of system setup
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fs.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/genhd.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/major.h>
+#include <linux/bootmem.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_BLK_DEV_INITRD
+#include <asm/pgtable.h>
+#endif
+
+#if defined(__H8300H__)
+#define CPU "H8/300H"
+#include <asm/regs306x.h>
+#endif
+
+#if defined(__H8300S__)
+#define CPU "H8S"
+#include <asm/regs267x.h>
+#endif
+
+#define STUBSIZE 0xc000;
+
+unsigned long rom_length;
+unsigned long memory_start;
+unsigned long memory_end;
+
+char command_line[COMMAND_LINE_SIZE];
+
+extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
+extern int _ramstart, _ramend;
+extern char _target_name[];
+extern void h8300_gpio_init(void);
+
+#if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) \
+    && defined(CONFIG_GDB_MAGICPRINT)
+/* printk with gdb service */
+static void gdb_console_output(struct console *c, const char *msg, unsigned len)
+{
+	for (; len > 0; len--) {
+		asm("mov.w %0,r2\n\t"
+                    "jsr @0xc4"::"r"(*msg++):"er2");
+	}
+}
+
+/*
+ *	Setup initial baud/bits/parity. We do two things here:
+ *	- construct a cflag setting for the first rs_open()
+ *	- initialize the serial port
+ *	Return non-zero if we didn't find a serial port.
+ */
+static int __init gdb_console_setup(struct console *co, char *options)
+{
+	return 0;
+}
+
+static const struct console gdb_console = {
+	.name		= "gdb_con",
+	.write		= gdb_console_output,
+	.device		= NULL,
+	.setup		= gdb_console_setup,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+};
+#endif
+
+void __init setup_arch(char **cmdline_p)
+{
+	int bootmap_size;
+
+	memory_start = (unsigned long) &_ramstart;
+
+	/* allow for ROMFS on the end of the kernel */
+	if (memcmp((void *)memory_start, "-rom1fs-", 8) == 0) {
+#if defined(CONFIG_BLK_DEV_INITRD)
+		initrd_start = memory_start;
+		initrd_end = memory_start += be32_to_cpu(((unsigned long *) (memory_start))[2]);
+#else
+		memory_start += be32_to_cpu(((unsigned long *) memory_start)[2]);
+#endif
+	}
+	memory_start = PAGE_ALIGN(memory_start);
+#if !defined(CONFIG_BLKDEV_RESERVE)
+	memory_end = (unsigned long) &_ramend; /* by now the stack is part of the init task */
+#if defined(CONFIG_GDB_DEBUG)
+	memory_end -= STUBSIZE;
+#endif
+#else
+	if ((memory_end < CONFIG_BLKDEV_RESERVE_ADDRESS) && 
+	    (memory_end > CONFIG_BLKDEV_RESERVE_ADDRESS)
+	    /* overlap userarea */
+	    memory_end = CONFIG_BLKDEV_RESERVE_ADDRESS; 
+#endif
+
+	init_mm.start_code = (unsigned long) &_stext;
+	init_mm.end_code = (unsigned long) &_etext;
+	init_mm.end_data = (unsigned long) &_edata;
+	init_mm.brk = (unsigned long) 0; 
+
+#if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) && defined(CONFIG_GDB_MAGICPRINT)
+	register_console((struct console *)&gdb_console);
+#endif
+
+	printk(KERN_INFO "\r\n\nuClinux " CPU "\n");
+	printk(KERN_INFO "Target Hardware: %s\n",_target_name);
+	printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
+	printk(KERN_INFO "H8/300 series support by Yoshinori Sato <ysato@users.sourceforge.jp>\n");
+
+#ifdef DEBUG
+	printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
+		"BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext,
+		(int) &_sdata, (int) &_edata,
+		(int) &_sbss, (int) &_ebss);
+	printk(KERN_DEBUG "KERNEL -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x "
+		"STACK=0x%06x-0x%06x\n",
+	       (int) &_ebss, (int) memory_start,
+		(int) memory_start, (int) memory_end,
+		(int) memory_end, (int) &_ramend);
+#endif
+
+#ifdef CONFIG_DEFAULT_CMDLINE
+	/* set from default command line */
+	if (*command_line == '\0')
+		strcpy(command_line,CONFIG_KERNEL_COMMAND);
+#endif
+	/* Keep a copy of command line */
+	*cmdline_p = &command_line[0];
+	memcpy(saved_command_line, command_line, COMMAND_LINE_SIZE);
+	saved_command_line[COMMAND_LINE_SIZE-1] = 0;
+
+#ifdef DEBUG
+	if (strlen(*cmdline_p)) 
+		printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p);
+#endif
+
+	/*
+	 * give all the memory to the bootmap allocator,  tell it to put the
+	 * boot mem_map at the start of memory
+	 */
+	bootmap_size = init_bootmem_node(
+			NODE_DATA(0),
+			memory_start >> PAGE_SHIFT, /* map goes here */
+			PAGE_OFFSET >> PAGE_SHIFT,	/* 0 on coldfire */
+			memory_end >> PAGE_SHIFT);
+	/*
+	 * free the usable memory,  we have to make sure we do not free
+	 * the bootmem bitmap so we then reserve it after freeing it :-)
+	 */
+	free_bootmem(memory_start, memory_end - memory_start);
+	reserve_bootmem(memory_start, bootmap_size);
+	/*
+	 * get kmalloc into gear
+	 */
+	paging_init();
+	h8300_gpio_init();
+#if defined(CONFIG_H8300_AKI3068NET) && defined(CONFIG_IDE)
+	{
+#define AREABIT(addr) (1 << (((addr) >> 21) & 7))
+		/* setup BSC */
+		volatile unsigned char *abwcr = (volatile unsigned char *)ABWCR;
+		volatile unsigned char *cscr = (volatile unsigned char *)CSCR;
+		*abwcr &= ~(AREABIT(CONFIG_H8300_IDE_BASE) | AREABIT(CONFIG_H8300_IDE_ALT));
+		*cscr  |= (AREABIT(CONFIG_H8300_IDE_BASE) | AREABIT(CONFIG_H8300_IDE_ALT)) | 0x0f;
+	}
+#endif
+#ifdef DEBUG
+	printk(KERN_DEBUG "Done setup_arch\n");
+#endif
+}
+
+/*
+ *	Get CPU information for use by the procfs.
+ */
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+    char *cpu;
+    int mode;
+    u_long clockfreq;
+
+    cpu = CPU;
+    mode = *(volatile unsigned char *)MDCR & 0x07;
+
+    clockfreq = CONFIG_CPU_CLOCK;
+
+    seq_printf(m,  "CPU:\t\t%s (mode:%d)\n"
+		   "Clock:\t\t%lu.%1luMHz\n"
+		   "BogoMips:\t%lu.%02lu\n"
+		   "Calibration:\t%lu loops\n",
+	           cpu,mode,
+		   clockfreq/1000,clockfreq%1000,
+		   (loops_per_jiffy*HZ)/500000,((loops_per_jiffy*HZ)/5000)%100,
+		   (loops_per_jiffy*HZ));
+
+    return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return c_start(m, pos);
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};