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Diffstat (limited to 'arch/mn10300/kernel/setup.c')
| -rw-r--r-- | arch/mn10300/kernel/setup.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c deleted file mode 100644 index 1b3d80d8a171..000000000000 --- a/arch/mn10300/kernel/setup.c +++ /dev/null @@ -1,283 +0,0 @@ -/* MN10300 Arch-specific initialisation - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#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/user.h> -#include <linux/tty.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/cpu.h> -#include <asm/processor.h> -#include <linux/console.h> -#include <linux/uaccess.h> -#include <asm/setup.h> -#include <asm/io.h> -#include <asm/smp.h> -#include <proc/proc.h> -#include <asm/fpu.h> -#include <asm/sections.h> - -struct mn10300_cpuinfo boot_cpu_data; - -static char __initdata cmd_line[COMMAND_LINE_SIZE]; -char redboot_command_line[COMMAND_LINE_SIZE] = - "console=ttyS0,115200 root=/dev/mtdblock3 rw"; - -char __initdata redboot_platform_name[COMMAND_LINE_SIZE]; - -static struct resource code_resource = { - .start = 0x100000, - .end = 0, - .name = "Kernel code", -}; - -static struct resource data_resource = { - .start = 0, - .end = 0, - .name = "Kernel data", -}; - -static unsigned long __initdata phys_memory_base; -static unsigned long __initdata phys_memory_end; -static unsigned long __initdata memory_end; -unsigned long memory_size; - -struct thread_info *__current_ti = &init_thread_union.thread_info; -struct task_struct *__current = &init_task; - -#define mn10300_known_cpus 5 -static const char *const mn10300_cputypes[] = { - "am33-1", - "am33-2", - "am34-1", - "am33-3", - "am34-2", - "unknown" -}; - -/* - * Pick out the memory size. We look for mem=size, - * where size is "size[KkMm]" - */ -static int __init early_mem(char *p) -{ - memory_size = memparse(p, &p); - - if (memory_size == 0) - panic("Memory size not known\n"); - - return 0; -} -early_param("mem", early_mem); - -/* - * architecture specific setup - */ -void __init setup_arch(char **cmdline_p) -{ - unsigned long bootmap_size; - unsigned long kstart_pfn, start_pfn, free_pfn, end_pfn; - - cpu_init(); - unit_setup(); - smp_init_cpus(); - - /* save unparsed command line copy for /proc/cmdline */ - strlcpy(boot_command_line, redboot_command_line, COMMAND_LINE_SIZE); - - /* populate cmd_line too for later use, preserving boot_command_line */ - strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE); - *cmdline_p = cmd_line; - - parse_early_param(); - - memory_end = (unsigned long) CONFIG_KERNEL_RAM_BASE_ADDRESS + - memory_size; - if (memory_end > phys_memory_end) - memory_end = phys_memory_end; - - 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_bus(&_text); - code_resource.end = virt_to_bus(&_etext)-1; - data_resource.start = virt_to_bus(&_etext); - data_resource.end = virt_to_bus(&_edata)-1; - - start_pfn = (CONFIG_KERNEL_RAM_BASE_ADDRESS >> PAGE_SHIFT); - kstart_pfn = PFN_UP(__pa(&_text)); - free_pfn = PFN_UP(__pa(&_end)); - end_pfn = PFN_DOWN(__pa(memory_end)); - - bootmap_size = init_bootmem_node(&contig_page_data, - free_pfn, - start_pfn, - end_pfn); - - if (kstart_pfn > start_pfn) - free_bootmem(PFN_PHYS(start_pfn), - PFN_PHYS(kstart_pfn - start_pfn)); - - free_bootmem(PFN_PHYS(free_pfn), - PFN_PHYS(end_pfn - free_pfn)); - - /* If interrupt vector table is in main ram, then we need to - reserve the page it is occupying. */ - if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS && - CONFIG_INTERRUPT_VECTOR_BASE < memory_end) - reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE, - BOOTMEM_DEFAULT); - - reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size, - BOOTMEM_DEFAULT); - -#ifdef CONFIG_VT -#if defined(CONFIG_VGA_CONSOLE) - conswitchp = &vga_con; -#elif defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; -#endif -#endif - - paging_init(); -} - -/* - * perform CPU initialisation - */ -void __init cpu_init(void) -{ - unsigned long cpurev = CPUREV, type; - - type = (CPUREV & CPUREV_TYPE) >> CPUREV_TYPE_S; - if (type > mn10300_known_cpus) - type = mn10300_known_cpus; - - printk(KERN_INFO "Panasonic %s, rev %ld\n", - mn10300_cputypes[type], - (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S); - - get_mem_info(&phys_memory_base, &memory_size); - phys_memory_end = phys_memory_base + memory_size; - - fpu_init_state(); -} - -static struct cpu cpu_devices[NR_CPUS]; - -static int __init topology_init(void) -{ - int i; - - for_each_present_cpu(i) - register_cpu(&cpu_devices[i], i); - - return 0; -} - -subsys_initcall(topology_init); - -/* - * Get CPU information for use by the procfs. - */ -static int show_cpuinfo(struct seq_file *m, void *v) -{ -#ifdef CONFIG_SMP - struct mn10300_cpuinfo *c = v; - unsigned long cpu_id = c - cpu_data; - unsigned long cpurev = c->type, type, icachesz, dcachesz; -#else /* CONFIG_SMP */ - unsigned long cpu_id = 0; - unsigned long cpurev = CPUREV, type, icachesz, dcachesz; -#endif /* CONFIG_SMP */ - -#ifdef CONFIG_SMP - if (!cpu_online(cpu_id)) - return 0; -#endif - - type = (cpurev & CPUREV_TYPE) >> CPUREV_TYPE_S; - if (type > mn10300_known_cpus) - type = mn10300_known_cpus; - - icachesz = - ((cpurev & CPUREV_ICWAY ) >> CPUREV_ICWAY_S) * - ((cpurev & CPUREV_ICSIZE) >> CPUREV_ICSIZE_S) * - 1024; - - dcachesz = - ((cpurev & CPUREV_DCWAY ) >> CPUREV_DCWAY_S) * - ((cpurev & CPUREV_DCSIZE) >> CPUREV_DCSIZE_S) * - 1024; - - seq_printf(m, - "processor : %ld\n" - "vendor_id : " PROCESSOR_VENDOR_NAME "\n" - "cpu core : %s\n" - "cpu rev : %lu\n" - "model name : " PROCESSOR_MODEL_NAME "\n" - "icache size: %lu\n" - "dcache size: %lu\n", - cpu_id, - mn10300_cputypes[type], - (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S, - icachesz, - dcachesz - ); - - seq_printf(m, - "ioclk speed: %lu.%02luMHz\n" - "bogomips : %lu.%02lu\n\n", - MN10300_IOCLK / 1000000, - (MN10300_IOCLK / 10000) % 100, -#ifdef CONFIG_SMP - c->loops_per_jiffy / (500000 / HZ), - (c->loops_per_jiffy / (5000 / HZ)) % 100 -#else /* CONFIG_SMP */ - loops_per_jiffy / (500000 / HZ), - (loops_per_jiffy / (5000 / HZ)) % 100 -#endif /* CONFIG_SMP */ - ); - - 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) -{ -} - -const struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, -}; |