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    /*
     * Copyright (c) 2011 The Chromium OS Authors.
    
     * SPDX-License-Identifier:	GPL-2.0+
    
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     */
    
    #include <common.h>
    
    #include <os.h>
    
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    DECLARE_GLOBAL_DATA_PTR;
    
    
    void reset_cpu(ulong ignored)
    
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    {
    
    	/* This is considered normal termination for now */
    	os_exit(0);
    
    }
    
    int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
    {
    	reset_cpu(0);
    
    
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    	return 0;
    }
    
    /* delay x useconds */
    void __udelay(unsigned long usec)
    {
    
    	os_usleep(usec);
    
    unsigned long __attribute__((no_instrument_function)) timer_get_us(void)
    
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    {
    
    	return os_get_nsec() / 1000;
    
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    }
    
    int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
    {
    
    	if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
    		bootstage_mark(BOOTSTAGE_ID_RUN_OS);
    		printf("## Transferring control to Linux (at address %08lx)...\n",
    		       images->ep);
    		reset_cpu(0);
    	}
    
    	return 0;
    
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    }
    
    int cleanup_before_linux(void)
    {
    	return 0;
    }
    
    void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
    {
    
    	return (void *)(gd->arch.ram_buf + paddr);
    
    phys_addr_t map_to_sysmem(void *ptr)
    {
    	return (u8 *)ptr - gd->arch.ram_buf;
    }
    
    
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    void flush_dcache_range(unsigned long start, unsigned long stop)
    {
    }