forked from Minki/linux
19bbdf0e51
We need to call parse_early_param() early on to allow usage of early_param() for command line parsing. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
780 lines
18 KiB
C
780 lines
18 KiB
C
/*
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* Common prep/pmac/chrp boot and setup code.
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/sched.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/reboot.h>
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#include <linux/delay.h>
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#include <linux/initrd.h>
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#include <linux/ide.h>
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#include <linux/tty.h>
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#include <linux/bootmem.h>
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#include <linux/seq_file.h>
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#include <linux/root_dev.h>
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#include <linux/cpu.h>
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#include <linux/console.h>
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#include <asm/residual.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/processor.h>
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#include <asm/pgtable.h>
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#include <asm/bootinfo.h>
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#include <asm/setup.h>
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#include <asm/amigappc.h>
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#include <asm/smp.h>
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#include <asm/elf.h>
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#include <asm/cputable.h>
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#include <asm/bootx.h>
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#include <asm/btext.h>
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#include <asm/machdep.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#include <asm/pmac_feature.h>
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#include <asm/sections.h>
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#include <asm/nvram.h>
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#include <asm/xmon.h>
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#include <asm/ocp.h>
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#if defined(CONFIG_85xx) || defined(CONFIG_83xx)
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#include <asm/ppc_sys.h>
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#endif
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#if defined CONFIG_KGDB
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#include <asm/kgdb.h>
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#endif
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extern void platform_init(unsigned long r3, unsigned long r4,
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unsigned long r5, unsigned long r6, unsigned long r7);
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extern void bootx_init(unsigned long r4, unsigned long phys);
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extern void identify_cpu(unsigned long offset, unsigned long cpu);
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extern void do_cpu_ftr_fixups(unsigned long offset);
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extern void reloc_got2(unsigned long offset);
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extern void ppc6xx_idle(void);
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extern void power4_idle(void);
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extern boot_infos_t *boot_infos;
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struct ide_machdep_calls ppc_ide_md;
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char *sysmap;
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unsigned long sysmap_size;
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/* Used with the BI_MEMSIZE bootinfo parameter to store the memory
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size value reported by the boot loader. */
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unsigned long boot_mem_size;
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unsigned long ISA_DMA_THRESHOLD;
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unsigned long DMA_MODE_READ, DMA_MODE_WRITE;
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#ifdef CONFIG_PPC_MULTIPLATFORM
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int _machine = 0;
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extern void prep_init(unsigned long r3, unsigned long r4,
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unsigned long r5, unsigned long r6, unsigned long r7);
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extern void pmac_init(unsigned long r3, unsigned long r4,
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unsigned long r5, unsigned long r6, unsigned long r7);
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extern void chrp_init(unsigned long r3, unsigned long r4,
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unsigned long r5, unsigned long r6, unsigned long r7);
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#endif /* CONFIG_PPC_MULTIPLATFORM */
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#ifdef CONFIG_MAGIC_SYSRQ
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unsigned long SYSRQ_KEY = 0x54;
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#endif /* CONFIG_MAGIC_SYSRQ */
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#ifdef CONFIG_VGA_CONSOLE
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unsigned long vgacon_remap_base;
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#endif
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struct machdep_calls ppc_md;
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/*
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* These are used in binfmt_elf.c to put aux entries on the stack
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* for each elf executable being started.
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*/
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int dcache_bsize;
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int icache_bsize;
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int ucache_bsize;
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#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_FB_VGA16) || \
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defined(CONFIG_FB_VGA16_MODULE) || defined(CONFIG_FB_VESA)
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struct screen_info screen_info = {
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0, 25, /* orig-x, orig-y */
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0, /* unused */
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0, /* orig-video-page */
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0, /* orig-video-mode */
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80, /* orig-video-cols */
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0,0,0, /* ega_ax, ega_bx, ega_cx */
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25, /* orig-video-lines */
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1, /* orig-video-isVGA */
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16 /* orig-video-points */
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};
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#endif /* CONFIG_VGA_CONSOLE || CONFIG_FB_VGA16 || CONFIG_FB_VESA */
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void machine_restart(char *cmd)
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{
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#ifdef CONFIG_NVRAM
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nvram_sync();
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#endif
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ppc_md.restart(cmd);
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}
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EXPORT_SYMBOL(machine_restart);
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void machine_power_off(void)
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{
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#ifdef CONFIG_NVRAM
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nvram_sync();
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#endif
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ppc_md.power_off();
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}
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EXPORT_SYMBOL(machine_power_off);
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void machine_halt(void)
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{
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#ifdef CONFIG_NVRAM
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nvram_sync();
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#endif
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ppc_md.halt();
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}
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EXPORT_SYMBOL(machine_halt);
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void (*pm_power_off)(void) = machine_power_off;
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#ifdef CONFIG_TAU
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extern u32 cpu_temp(unsigned long cpu);
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extern u32 cpu_temp_both(unsigned long cpu);
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#endif /* CONFIG_TAU */
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int show_cpuinfo(struct seq_file *m, void *v)
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{
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int i = (int) v - 1;
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int err = 0;
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unsigned int pvr;
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unsigned short maj, min;
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unsigned long lpj;
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if (i >= NR_CPUS) {
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/* Show summary information */
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#ifdef CONFIG_SMP
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unsigned long bogosum = 0;
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for (i = 0; i < NR_CPUS; ++i)
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if (cpu_online(i))
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bogosum += cpu_data[i].loops_per_jiffy;
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seq_printf(m, "total bogomips\t: %lu.%02lu\n",
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bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
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#endif /* CONFIG_SMP */
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if (ppc_md.show_cpuinfo != NULL)
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err = ppc_md.show_cpuinfo(m);
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return err;
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}
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#ifdef CONFIG_SMP
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if (!cpu_online(i))
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return 0;
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pvr = cpu_data[i].pvr;
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lpj = cpu_data[i].loops_per_jiffy;
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#else
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pvr = mfspr(SPRN_PVR);
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lpj = loops_per_jiffy;
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#endif
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seq_printf(m, "processor\t: %d\n", i);
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seq_printf(m, "cpu\t\t: ");
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if (cur_cpu_spec[i]->pvr_mask)
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seq_printf(m, "%s", cur_cpu_spec[i]->cpu_name);
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else
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seq_printf(m, "unknown (%08x)", pvr);
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#ifdef CONFIG_ALTIVEC
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if (cur_cpu_spec[i]->cpu_features & CPU_FTR_ALTIVEC)
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seq_printf(m, ", altivec supported");
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#endif
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seq_printf(m, "\n");
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#ifdef CONFIG_TAU
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if (cur_cpu_spec[i]->cpu_features & CPU_FTR_TAU) {
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#ifdef CONFIG_TAU_AVERAGE
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/* more straightforward, but potentially misleading */
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seq_printf(m, "temperature \t: %u C (uncalibrated)\n",
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cpu_temp(i));
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#else
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/* show the actual temp sensor range */
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u32 temp;
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temp = cpu_temp_both(i);
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seq_printf(m, "temperature \t: %u-%u C (uncalibrated)\n",
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temp & 0xff, temp >> 16);
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#endif
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}
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#endif /* CONFIG_TAU */
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if (ppc_md.show_percpuinfo != NULL) {
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err = ppc_md.show_percpuinfo(m, i);
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if (err)
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return err;
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}
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/* If we are a Freescale core do a simple check so
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* we dont have to keep adding cases in the future */
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if ((PVR_VER(pvr) & 0x8000) == 0x8000) {
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maj = PVR_MAJ(pvr);
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min = PVR_MIN(pvr);
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} else {
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switch (PVR_VER(pvr)) {
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case 0x0020: /* 403 family */
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maj = PVR_MAJ(pvr) + 1;
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min = PVR_MIN(pvr);
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break;
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case 0x1008: /* 740P/750P ?? */
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maj = ((pvr >> 8) & 0xFF) - 1;
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min = pvr & 0xFF;
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break;
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default:
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maj = (pvr >> 8) & 0xFF;
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min = pvr & 0xFF;
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break;
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}
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}
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seq_printf(m, "revision\t: %hd.%hd (pvr %04x %04x)\n",
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maj, min, PVR_VER(pvr), PVR_REV(pvr));
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seq_printf(m, "bogomips\t: %lu.%02lu\n",
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lpj / (500000/HZ), (lpj / (5000/HZ)) % 100);
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#if defined(CONFIG_85xx) || defined(CONFIG_83xx)
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if (cur_ppc_sys_spec->ppc_sys_name)
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seq_printf(m, "chipset\t\t: %s\n",
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cur_ppc_sys_spec->ppc_sys_name);
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#endif
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#ifdef CONFIG_SMP
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seq_printf(m, "\n");
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#endif
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return 0;
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}
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static void *c_start(struct seq_file *m, loff_t *pos)
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{
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int i = *pos;
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return i <= NR_CPUS? (void *) (i + 1): NULL;
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}
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static void *c_next(struct seq_file *m, void *v, loff_t *pos)
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{
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++*pos;
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return c_start(m, pos);
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}
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static void c_stop(struct seq_file *m, void *v)
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{
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}
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struct seq_operations cpuinfo_op = {
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.start =c_start,
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.next = c_next,
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.stop = c_stop,
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.show = show_cpuinfo,
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};
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/*
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* We're called here very early in the boot. We determine the machine
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* type and call the appropriate low-level setup functions.
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* -- Cort <cort@fsmlabs.com>
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*
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* Note that the kernel may be running at an address which is different
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* from the address that it was linked at, so we must use RELOC/PTRRELOC
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* to access static data (including strings). -- paulus
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*/
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__init
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unsigned long
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early_init(int r3, int r4, int r5)
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{
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unsigned long phys;
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unsigned long offset = reloc_offset();
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/* Default */
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phys = offset + KERNELBASE;
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/* First zero the BSS -- use memset, some arches don't have
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* caches on yet */
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memset_io(PTRRELOC(&__bss_start), 0, _end - __bss_start);
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/*
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* Identify the CPU type and fix up code sections
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* that depend on which cpu we have.
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*/
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identify_cpu(offset, 0);
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do_cpu_ftr_fixups(offset);
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#if defined(CONFIG_PPC_MULTIPLATFORM)
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reloc_got2(offset);
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/* If we came here from BootX, clear the screen,
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* set up some pointers and return. */
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if ((r3 == 0x426f6f58) && (r5 == 0))
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bootx_init(r4, phys);
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/*
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* don't do anything on prep
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* for now, don't use bootinfo because it breaks yaboot 0.5
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* and assume that if we didn't find a magic number, we have OF
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*/
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else if (*(unsigned long *)(0) != 0xdeadc0de)
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phys = prom_init(r3, r4, (prom_entry)r5);
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reloc_got2(-offset);
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#endif
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return phys;
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}
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#ifdef CONFIG_PPC_OF
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/*
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* Assume here that all clock rates are the same in a
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* smp system. -- Cort
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*/
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int __openfirmware
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of_show_percpuinfo(struct seq_file *m, int i)
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{
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struct device_node *cpu_node;
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u32 *fp;
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int s;
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cpu_node = find_type_devices("cpu");
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if (!cpu_node)
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return 0;
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for (s = 0; s < i && cpu_node->next; s++)
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cpu_node = cpu_node->next;
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fp = (u32 *)get_property(cpu_node, "clock-frequency", NULL);
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if (fp)
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seq_printf(m, "clock\t\t: %dMHz\n", *fp / 1000000);
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return 0;
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}
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void __init
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intuit_machine_type(void)
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{
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char *model;
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struct device_node *root;
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/* ask the OF info if we're a chrp or pmac */
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root = find_path_device("/");
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if (root != 0) {
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/* assume pmac unless proven to be chrp -- Cort */
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_machine = _MACH_Pmac;
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model = get_property(root, "device_type", NULL);
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if (model && !strncmp("chrp", model, 4))
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_machine = _MACH_chrp;
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else {
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model = get_property(root, "model", NULL);
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if (model && !strncmp(model, "IBM", 3))
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_machine = _MACH_chrp;
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}
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}
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}
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#endif
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#ifdef CONFIG_PPC_MULTIPLATFORM
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/*
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* The PPC_MULTIPLATFORM version of platform_init...
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*/
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void __init
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platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
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unsigned long r6, unsigned long r7)
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{
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#ifdef CONFIG_BOOTX_TEXT
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if (boot_text_mapped) {
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btext_clearscreen();
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btext_welcome();
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}
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#endif
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parse_bootinfo(find_bootinfo());
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/* if we didn't get any bootinfo telling us what we are... */
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if (_machine == 0) {
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/* prep boot loader tells us if we're prep or not */
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if ( *(unsigned long *)(KERNELBASE) == (0xdeadc0de) )
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_machine = _MACH_prep;
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}
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/* not much more to do here, if prep */
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if (_machine == _MACH_prep) {
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prep_init(r3, r4, r5, r6, r7);
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return;
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}
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/* prom_init has already been called from __start */
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if (boot_infos)
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relocate_nodes();
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/* If we aren't PReP, we can find out if we're Pmac
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* or CHRP with this. */
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if (_machine == 0)
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intuit_machine_type();
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/* finish_device_tree may need _machine defined. */
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finish_device_tree();
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/*
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* If we were booted via quik, r3 points to the physical
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* address of the command-line parameters.
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* If we were booted from an xcoff image (i.e. netbooted or
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* booted from floppy), we get the command line from the
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* bootargs property of the /chosen node.
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* If an initial ramdisk is present, r3 and r4
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* are used for initrd_start and initrd_size,
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* otherwise they contain 0xdeadbeef.
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*/
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if (r3 >= 0x4000 && r3 < 0x800000 && r4 == 0) {
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strlcpy(cmd_line, (char *)r3 + KERNELBASE,
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sizeof(cmd_line));
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} else if (boot_infos != 0) {
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/* booted by BootX - check for ramdisk */
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if (boot_infos->kernelParamsOffset != 0)
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strlcpy(cmd_line, (char *) boot_infos
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+ boot_infos->kernelParamsOffset,
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sizeof(cmd_line));
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#ifdef CONFIG_BLK_DEV_INITRD
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if (boot_infos->ramDisk) {
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initrd_start = (unsigned long) boot_infos
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+ boot_infos->ramDisk;
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initrd_end = initrd_start + boot_infos->ramDiskSize;
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initrd_below_start_ok = 1;
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}
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#endif
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} else {
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struct device_node *chosen;
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char *p;
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#ifdef CONFIG_BLK_DEV_INITRD
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if (r3 && r4 && r4 != 0xdeadbeef) {
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if (r3 < KERNELBASE)
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r3 += KERNELBASE;
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initrd_start = r3;
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initrd_end = r3 + r4;
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ROOT_DEV = Root_RAM0;
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initrd_below_start_ok = 1;
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}
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#endif
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chosen = find_devices("chosen");
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if (chosen != NULL) {
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p = get_property(chosen, "bootargs", NULL);
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if (p && *p) {
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strlcpy(cmd_line, p, sizeof(cmd_line));
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}
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}
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}
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#ifdef CONFIG_ADB
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if (strstr(cmd_line, "adb_sync")) {
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extern int __adb_probe_sync;
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__adb_probe_sync = 1;
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}
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#endif /* CONFIG_ADB */
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switch (_machine) {
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case _MACH_Pmac:
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pmac_init(r3, r4, r5, r6, r7);
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break;
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case _MACH_chrp:
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chrp_init(r3, r4, r5, r6, r7);
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break;
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}
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}
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#ifdef CONFIG_SERIAL_CORE_CONSOLE
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extern char *of_stdout_device;
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static int __init set_preferred_console(void)
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{
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struct device_node *prom_stdout;
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char *name;
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int offset;
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if (of_stdout_device == NULL)
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return -ENODEV;
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/* The user has requested a console so this is already set up. */
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if (strstr(saved_command_line, "console="))
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return -EBUSY;
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prom_stdout = find_path_device(of_stdout_device);
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if (!prom_stdout)
|
|
return -ENODEV;
|
|
|
|
name = (char *)get_property(prom_stdout, "name", NULL);
|
|
if (!name)
|
|
return -ENODEV;
|
|
|
|
if (strcmp(name, "serial") == 0) {
|
|
int i;
|
|
u32 *reg = (u32 *)get_property(prom_stdout, "reg", &i);
|
|
if (i > 8) {
|
|
switch (reg[1]) {
|
|
case 0x3f8:
|
|
offset = 0;
|
|
break;
|
|
case 0x2f8:
|
|
offset = 1;
|
|
break;
|
|
case 0x898:
|
|
offset = 2;
|
|
break;
|
|
case 0x890:
|
|
offset = 3;
|
|
break;
|
|
default:
|
|
/* We dont recognise the serial port */
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
} else if (strcmp(name, "ch-a") == 0)
|
|
offset = 0;
|
|
else if (strcmp(name, "ch-b") == 0)
|
|
offset = 1;
|
|
else
|
|
return -ENODEV;
|
|
return add_preferred_console("ttyS", offset, NULL);
|
|
}
|
|
console_initcall(set_preferred_console);
|
|
#endif /* CONFIG_SERIAL_CORE_CONSOLE */
|
|
#endif /* CONFIG_PPC_MULTIPLATFORM */
|
|
|
|
struct bi_record *find_bootinfo(void)
|
|
{
|
|
struct bi_record *rec;
|
|
|
|
rec = (struct bi_record *)_ALIGN((ulong)__bss_start+(1<<20)-1,(1<<20));
|
|
if ( rec->tag != BI_FIRST ) {
|
|
/*
|
|
* This 0x10000 offset is a terrible hack but it will go away when
|
|
* we have the bootloader handle all the relocation and
|
|
* prom calls -- Cort
|
|
*/
|
|
rec = (struct bi_record *)_ALIGN((ulong)__bss_start+0x10000+(1<<20)-1,(1<<20));
|
|
if ( rec->tag != BI_FIRST )
|
|
return NULL;
|
|
}
|
|
return rec;
|
|
}
|
|
|
|
void parse_bootinfo(struct bi_record *rec)
|
|
{
|
|
if (rec == NULL || rec->tag != BI_FIRST)
|
|
return;
|
|
while (rec->tag != BI_LAST) {
|
|
ulong *data = rec->data;
|
|
switch (rec->tag) {
|
|
case BI_CMD_LINE:
|
|
strlcpy(cmd_line, (void *)data, sizeof(cmd_line));
|
|
break;
|
|
case BI_SYSMAP:
|
|
sysmap = (char *)((data[0] >= (KERNELBASE)) ? data[0] :
|
|
(data[0]+KERNELBASE));
|
|
sysmap_size = data[1];
|
|
break;
|
|
#ifdef CONFIG_BLK_DEV_INITRD
|
|
case BI_INITRD:
|
|
initrd_start = data[0] + KERNELBASE;
|
|
initrd_end = data[0] + data[1] + KERNELBASE;
|
|
break;
|
|
#endif /* CONFIG_BLK_DEV_INITRD */
|
|
#ifdef CONFIG_PPC_MULTIPLATFORM
|
|
case BI_MACHTYPE:
|
|
_machine = data[0];
|
|
break;
|
|
#endif
|
|
case BI_MEMSIZE:
|
|
boot_mem_size = data[0];
|
|
break;
|
|
}
|
|
rec = (struct bi_record *)((ulong)rec + rec->size);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Find out what kind of machine we're on and save any data we need
|
|
* from the early boot process (devtree is copied on pmac by prom_init()).
|
|
* This is called very early on the boot process, after a minimal
|
|
* MMU environment has been set up but before MMU_init is called.
|
|
*/
|
|
void __init
|
|
machine_init(unsigned long r3, unsigned long r4, unsigned long r5,
|
|
unsigned long r6, unsigned long r7)
|
|
{
|
|
#ifdef CONFIG_CMDLINE
|
|
strlcpy(cmd_line, CONFIG_CMDLINE, sizeof(cmd_line));
|
|
#endif /* CONFIG_CMDLINE */
|
|
|
|
#ifdef CONFIG_6xx
|
|
ppc_md.power_save = ppc6xx_idle;
|
|
#endif
|
|
#ifdef CONFIG_POWER4
|
|
ppc_md.power_save = power4_idle;
|
|
#endif
|
|
|
|
platform_init(r3, r4, r5, r6, r7);
|
|
|
|
if (ppc_md.progress)
|
|
ppc_md.progress("id mach(): done", 0x200);
|
|
}
|
|
|
|
/* Checks "l2cr=xxxx" command-line option */
|
|
int __init ppc_setup_l2cr(char *str)
|
|
{
|
|
if (cpu_has_feature(CPU_FTR_L2CR)) {
|
|
unsigned long val = simple_strtoul(str, NULL, 0);
|
|
printk(KERN_INFO "l2cr set to %lx\n", val);
|
|
_set_L2CR(0); /* force invalidate by disable cache */
|
|
_set_L2CR(val); /* and enable it */
|
|
}
|
|
return 1;
|
|
}
|
|
__setup("l2cr=", ppc_setup_l2cr);
|
|
|
|
#ifdef CONFIG_GENERIC_NVRAM
|
|
|
|
/* Generic nvram hooks used by drivers/char/gen_nvram.c */
|
|
unsigned char nvram_read_byte(int addr)
|
|
{
|
|
if (ppc_md.nvram_read_val)
|
|
return ppc_md.nvram_read_val(addr);
|
|
return 0xff;
|
|
}
|
|
EXPORT_SYMBOL(nvram_read_byte);
|
|
|
|
void nvram_write_byte(unsigned char val, int addr)
|
|
{
|
|
if (ppc_md.nvram_write_val)
|
|
ppc_md.nvram_write_val(addr, val);
|
|
}
|
|
EXPORT_SYMBOL(nvram_write_byte);
|
|
|
|
void nvram_sync(void)
|
|
{
|
|
if (ppc_md.nvram_sync)
|
|
ppc_md.nvram_sync();
|
|
}
|
|
EXPORT_SYMBOL(nvram_sync);
|
|
|
|
#endif /* CONFIG_NVRAM */
|
|
|
|
static struct cpu cpu_devices[NR_CPUS];
|
|
|
|
int __init ppc_init(void)
|
|
{
|
|
int i;
|
|
|
|
/* clear the progress line */
|
|
if ( ppc_md.progress ) ppc_md.progress(" ", 0xffff);
|
|
|
|
/* register CPU devices */
|
|
for (i = 0; i < NR_CPUS; i++)
|
|
if (cpu_possible(i))
|
|
register_cpu(&cpu_devices[i], i, NULL);
|
|
|
|
/* call platform init */
|
|
if (ppc_md.init != NULL) {
|
|
ppc_md.init();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
arch_initcall(ppc_init);
|
|
|
|
/* Warning, IO base is not yet inited */
|
|
void __init setup_arch(char **cmdline_p)
|
|
{
|
|
extern char *klimit;
|
|
extern void do_init_bootmem(void);
|
|
|
|
/* so udelay does something sensible, assume <= 1000 bogomips */
|
|
loops_per_jiffy = 500000000 / HZ;
|
|
|
|
#ifdef CONFIG_PPC_MULTIPLATFORM
|
|
/* This could be called "early setup arch", it must be done
|
|
* now because xmon need it
|
|
*/
|
|
if (_machine == _MACH_Pmac)
|
|
pmac_feature_init(); /* New cool way */
|
|
#endif
|
|
|
|
#ifdef CONFIG_XMON
|
|
xmon_map_scc();
|
|
if (strstr(cmd_line, "xmon"))
|
|
xmon(NULL);
|
|
#endif /* CONFIG_XMON */
|
|
if ( ppc_md.progress ) ppc_md.progress("setup_arch: enter", 0x3eab);
|
|
|
|
#if defined(CONFIG_KGDB)
|
|
if (ppc_md.kgdb_map_scc)
|
|
ppc_md.kgdb_map_scc();
|
|
set_debug_traps();
|
|
if (strstr(cmd_line, "gdb")) {
|
|
if (ppc_md.progress)
|
|
ppc_md.progress("setup_arch: kgdb breakpoint", 0x4000);
|
|
printk("kgdb breakpoint activated\n");
|
|
breakpoint();
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Set cache line size based on type of cpu as a default.
|
|
* Systems with OF can look in the properties on the cpu node(s)
|
|
* for a possibly more accurate value.
|
|
*/
|
|
if (cpu_has_feature(CPU_FTR_SPLIT_ID_CACHE)) {
|
|
dcache_bsize = cur_cpu_spec[0]->dcache_bsize;
|
|
icache_bsize = cur_cpu_spec[0]->icache_bsize;
|
|
ucache_bsize = 0;
|
|
} else
|
|
ucache_bsize = dcache_bsize = icache_bsize
|
|
= cur_cpu_spec[0]->dcache_bsize;
|
|
|
|
/* reboot on panic */
|
|
panic_timeout = 180;
|
|
|
|
init_mm.start_code = PAGE_OFFSET;
|
|
init_mm.end_code = (unsigned long) _etext;
|
|
init_mm.end_data = (unsigned long) _edata;
|
|
init_mm.brk = (unsigned long) klimit;
|
|
|
|
/* Save unparsed command line copy for /proc/cmdline */
|
|
strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
|
|
*cmdline_p = cmd_line;
|
|
|
|
parse_early_param();
|
|
|
|
/* set up the bootmem stuff with available memory */
|
|
do_init_bootmem();
|
|
if ( ppc_md.progress ) ppc_md.progress("setup_arch: bootmem", 0x3eab);
|
|
|
|
#ifdef CONFIG_PPC_OCP
|
|
/* Initialize OCP device list */
|
|
ocp_early_init();
|
|
if ( ppc_md.progress ) ppc_md.progress("ocp: exit", 0x3eab);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DUMMY_CONSOLE
|
|
conswitchp = &dummy_con;
|
|
#endif
|
|
|
|
ppc_md.setup_arch();
|
|
if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab);
|
|
|
|
paging_init();
|
|
|
|
/* this is for modules since _machine can be a define -- Cort */
|
|
ppc_md.ppc_machine = _machine;
|
|
}
|