Linux-2.6.12-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, 420 insertions, 0 deletions

diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
new file mode 100644
index 000000000000..4826cd6e40e8
--- /dev/null
+++ b/arch/m32r/kernel/setup.c
@@ -0,0 +1,420 @@
+/*
+ *  linux/arch/m32r/kernel/setup.c
+ *
+ *  Setup routines for Renesas M32R
+ *
+ *  Copyright (c) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata,
+ *                            Hitoshi Yamamoto
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/stddef.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+#include <linux/console.h>
+#include <linux/initrd.h>
+#include <linux/major.h>
+#include <linux/root_dev.h>
+#include <linux/seq_file.h>
+#include <linux/timex.h>
+#include <linux/tty.h>
+#include <linux/cpu.h>
+#include <linux/nodemask.h>
+
+#include <asm/processor.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/m32r.h>
+#include <asm/setup.h>
+#include <asm/sections.h>
+
+#ifdef CONFIG_MMU
+extern void init_mmu(void);
+#endif
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD)	\
+	|| defined(CONFIG_BLK_DEV_IDE_MODULE)			\
+	|| defined(CONFIG_BLK_DEV_HD_MODULE)
+struct drive_info_struct { char dummy[32]; } drive_info;
+#endif
+
+extern char _end[];
+
+/*
+ * Machine setup..
+ */
+struct cpuinfo_m32r boot_cpu_data;
+
+#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
+
+#if defined(CONFIG_VGA_CONSOLE)
+struct screen_info screen_info = {
+	.orig_video_lines      = 25,
+	.orig_video_cols       = 80,
+	.orig_video_mode       = 0,
+	.orig_video_ega_bx     = 0,
+	.orig_video_isVGA      = 1,
+	.orig_video_points     = 8
+};
+#endif
+
+extern int root_mountflags;
+
+static char command_line[COMMAND_LINE_SIZE];
+
+static struct resource data_resource = {
+	.name   = "Kernel data",
+	.start  = 0,
+	.end    = 0,
+	.flags  = IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
+static struct resource code_resource = {
+	.name   = "Kernel code",
+	.start  = 0,
+	.end    = 0,
+	.flags  = IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
+unsigned long memory_start;
+unsigned long memory_end;
+
+void __init setup_arch(char **);
+int get_cpuinfo(char *);
+
+static __inline__ void parse_mem_cmdline(char ** cmdline_p)
+{
+	char c = ' ';
+	char *to = command_line;
+	char *from = COMMAND_LINE;
+	int len = 0;
+	int usermem = 0;
+
+	/* Save unparsed command line copy for /proc/cmdline */
+	memcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
+	saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
+
+	memory_start = (unsigned long)CONFIG_MEMORY_START+PAGE_OFFSET;
+	memory_end = memory_start+(unsigned long)CONFIG_MEMORY_SIZE;
+
+	for ( ; ; ) {
+		if (c == ' ' && !memcmp(from, "mem=", 4)) {
+			if (to != command_line)
+				to--;
+
+			{
+				unsigned long mem_size;
+
+				usermem = 1;
+				mem_size = memparse(from+4, &from);
+				memory_end = memory_start + mem_size;
+			}
+		}
+		c = *(from++);
+		if (!c)
+			break;
+
+		if (COMMAND_LINE_SIZE <= ++len)
+			break;
+
+		*(to++) = c;
+	}
+	*to = '\0';
+	*cmdline_p = command_line;
+	if (usermem)
+		printk(KERN_INFO "user-defined physical RAM map:\n");
+}
+
+#ifndef CONFIG_DISCONTIGMEM
+static unsigned long __init setup_memory(void)
+{
+	unsigned long start_pfn, max_low_pfn, bootmap_size;
+
+	start_pfn = PFN_UP( __pa(_end) );
+	max_low_pfn = PFN_DOWN( __pa(memory_end) );
+
+	/*
+	 * Initialize the boot-time allocator (with low memory only):
+	 */
+	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
+		CONFIG_MEMORY_START>>PAGE_SHIFT, max_low_pfn);
+
+	/*
+	 * Register fully available low RAM pages with the bootmem allocator.
+	 */
+	{
+		unsigned long curr_pfn;
+		unsigned long last_pfn;
+		unsigned long pages;
+
+		/*
+		 * We are rounding up the start address of usable memory:
+		 */
+		curr_pfn = PFN_UP(__pa(memory_start));
+
+		/*
+		 * ... and at the end of the usable range downwards:
+		 */
+		last_pfn = PFN_DOWN(__pa(memory_end));
+
+		if (last_pfn > max_low_pfn)
+			last_pfn = max_low_pfn;
+
+		pages = last_pfn - curr_pfn;
+		free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages));
+	}
+
+	/*
+	 * Reserve the kernel text and
+	 * Reserve the bootmem bitmap. We do this in two steps (first step
+	 * was init_bootmem()), because this catches the (definitely buggy)
+	 * case of us accidentally initializing the bootmem allocator with
+	 * an invalid RAM area.
+	 */
+	reserve_bootmem(CONFIG_MEMORY_START + PAGE_SIZE,
+		(PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE - 1)
+		- CONFIG_MEMORY_START);
+
+	/*
+	 * reserve physical page 0 - it's a special BIOS page on many boxes,
+	 * enabling clean reboots, SMP operation, laptop functions.
+	 */
+	reserve_bootmem(CONFIG_MEMORY_START, PAGE_SIZE);
+
+	/*
+	 * reserve memory hole
+	 */
+#ifdef CONFIG_MEMHOLE
+	reserve_bootmem(CONFIG_MEMHOLE_START, CONFIG_MEMHOLE_SIZE);
+#endif
+
+#ifdef CONFIG_BLK_DEV_INITRD
+	if (LOADER_TYPE && INITRD_START) {
+		if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
+			reserve_bootmem(INITRD_START, INITRD_SIZE);
+			initrd_start = INITRD_START ?
+				INITRD_START + PAGE_OFFSET : 0;
+
+			initrd_end = initrd_start + INITRD_SIZE;
+			printk("initrd:start[%08lx],size[%08lx]\n",
+				initrd_start, INITRD_SIZE);
+		} else {
+			printk("initrd extends beyond end of memory "
+				"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
+				INITRD_START + INITRD_SIZE,
+				max_low_pfn << PAGE_SHIFT);
+
+			initrd_start = 0;
+		}
+	}
+#endif
+
+	return max_low_pfn;
+}
+#else	/* CONFIG_DISCONTIGMEM */
+extern unsigned long setup_memory(void);
+#endif	/* CONFIG_DISCONTIGMEM */
+
+#define M32R_PCC_PCATCR	0x00ef7014	/* will move to m32r.h */
+
+void __init setup_arch(char **cmdline_p)
+{
+	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
+
+	boot_cpu_data.cpu_clock = M32R_CPUCLK;
+	boot_cpu_data.bus_clock = M32R_BUSCLK;
+	boot_cpu_data.timer_divide = M32R_TIMER_DIVIDE;
+
+#ifdef CONFIG_BLK_DEV_RAM
+	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
+	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
+	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
+#endif
+
+	if (!MOUNT_ROOT_RDONLY)
+		root_mountflags &= ~MS_RDONLY;
+
+#ifdef CONFIG_VT
+#if defined(CONFIG_VGA_CONSOLE)
+	conswitchp = &vga_con;
+#elif defined(CONFIG_DUMMY_CONSOLE)
+	conswitchp = &dummy_con;
+#endif
+#endif
+
+#ifdef CONFIG_DISCONTIGMEM
+	nodes_clear(node_online_map);
+	node_set_online(0);
+	node_set_online(1);
+#endif	/* CONFIG_DISCONTIGMEM */
+
+	init_mm.start_code = (unsigned long) _text;
+	init_mm.end_code = (unsigned long) _etext;
+	init_mm.end_data = (unsigned long) _edata;
+	init_mm.brk = (unsigned long) _end;
+
+	code_resource.start = virt_to_phys(_text);
+	code_resource.end = virt_to_phys(_etext)-1;
+	data_resource.start = virt_to_phys(_etext);
+	data_resource.end = virt_to_phys(_edata)-1;
+
+	parse_mem_cmdline(cmdline_p);
+
+	setup_memory();
+
+	paging_init();
+}
+
+static struct cpu cpu[NR_CPUS];
+
+static int __init topology_init(void)
+{
+	int cpu_id;
+
+	for (cpu_id = 0; cpu_id < NR_CPUS; cpu_id++)
+		if (cpu_possible(cpu_id))
+			register_cpu(&cpu[cpu_id], cpu_id, NULL);
+
+	return 0;
+}
+
+subsys_initcall(topology_init);
+
+#ifdef CONFIG_PROC_FS
+/*
+ *	Get CPU information for use by the procfs.
+ */
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+	struct cpuinfo_m32r *c = v;
+	unsigned long cpu = c - cpu_data;
+
+#ifdef CONFIG_SMP
+	if (!cpu_online(cpu))
+		return 0;
+#endif	/* CONFIG_SMP */
+
+	seq_printf(m, "processor\t: %ld\n", cpu);
+
+#ifdef CONFIG_CHIP_VDEC2
+	seq_printf(m, "cpu family\t: VDEC2\n"
+		"cache size\t: Unknown\n");
+#elif  CONFIG_CHIP_M32700
+	seq_printf(m,"cpu family\t: M32700\n"
+		"cache size\t: I-8KB/D-8KB\n");
+#elif  CONFIG_CHIP_M32102
+	seq_printf(m,"cpu family\t: M32102\n"
+		"cache size\t: I-8KB\n");
+#elif  CONFIG_CHIP_OPSP
+	seq_printf(m,"cpu family\t: OPSP\n"
+		"cache size\t: I-8KB/D-8KB\n");
+#elif  CONFIG_CHIP_MP
+	seq_printf(m, "cpu family\t: M32R-MP\n"
+		"cache size\t: I-xxKB/D-xxKB\n");
+#else
+	seq_printf(m, "cpu family\t: Unknown\n");
+#endif
+	seq_printf(m, "bogomips\t: %lu.%02lu\n",
+		c->loops_per_jiffy/(500000/HZ),
+		(c->loops_per_jiffy/(5000/HZ)) % 100);
+#ifdef CONFIG_PLAT_MAPPI
+	seq_printf(m, "Machine\t\t: Mappi Evaluation board\n");
+#elif CONFIG_PLAT_MAPPI2
+	seq_printf(m, "Machine\t\t: Mappi-II Evaluation board\n");
+#elif  CONFIG_PLAT_M32700UT
+	seq_printf(m, "Machine\t\t: M32700UT Evaluation board\n");
+#elif  CONFIG_PLAT_OPSPUT
+	seq_printf(m, "Machine\t\t: OPSPUT Evaluation board\n");
+#elif  CONFIG_PLAT_USRV
+	seq_printf(m, "Machine\t\t: uServer\n");
+#elif  CONFIG_PLAT_OAKS32R
+	seq_printf(m, "Machine\t\t: OAKS32R\n");
+#else
+	seq_printf(m, "Machine\t\t: Unknown\n");
+#endif
+
+#define PRINT_CLOCK(name, value)				\
+	seq_printf(m, name " clock\t: %d.%02dMHz\n",		\
+		((value) / 1000000), ((value) % 1000000)/10000)
+
+	PRINT_CLOCK("CPU", (int)c->cpu_clock);
+	PRINT_CLOCK("Bus", (int)c->bus_clock);
+
+	seq_printf(m, "\n");
+
+	return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < NR_CPUS ? cpu_data + *pos : 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,
+};
+#endif	/* CONFIG_PROC_FS */
+
+unsigned long cpu_initialized __initdata = 0;
+
+/*
+ * cpu_init() initializes state that is per-CPU. Some data is already
+ * initialized (naturally) in the bootstrap process.
+ * We reload them nevertheless, this function acts as a
+ * 'CPU state barrier', nothing should get across.
+ */
+#if defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_XNUX2)	\
+	|| defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_M32102) \
+	|| defined(CONFIG_CHIP_OPSP)
+void __init cpu_init (void)
+{
+	int cpu_id = smp_processor_id();
+
+	if (test_and_set_bit(cpu_id, &cpu_initialized)) {
+		printk(KERN_WARNING "CPU#%d already initialized!\n", cpu_id);
+		for ( ; ; )
+			local_irq_enable();
+	}
+	printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);
+
+	/* Set up and load the per-CPU TSS and LDT */
+	atomic_inc(&init_mm.mm_count);
+	current->active_mm = &init_mm;
+	if (current->mm)
+		BUG();
+
+	/* Force FPU initialization */
+	current_thread_info()->status = 0;
+	clear_used_math();
+
+#ifdef CONFIG_MMU
+	/* Set up MMU */
+	init_mmu();
+#endif
+
+	/* Set up ICUIMASK */
+	outl(0x00070000, M32R_ICU_IMASK_PORTL);		/* imask=111 */
+}
+#endif	/* defined(CONFIG_CHIP_VDEC2) ... */