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43 lines
1.2 KiB
43 lines
1.2 KiB
/* |
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* arch/xtensa/kernel/platform.c |
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* |
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* Default platform functions. |
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* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 2005 Tensilica Inc. |
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* |
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* Chris Zankel <[email protected]> |
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*/ |
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#include <linux/printk.h> |
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#include <linux/types.h> |
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#include <asm/platform.h> |
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#include <asm/timex.h> |
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#define _F(r,f,a,b) \ |
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r __platform_##f a b; \ |
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r platform_##f a __attribute__((weak, alias("__platform_"#f))) |
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/* |
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* Default functions that are used if no platform specific function is defined. |
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* (Please, refer to include/asm-xtensa/platform.h for more information) |
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*/ |
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_F(void, init, (bp_tag_t *first), { }); |
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_F(void, setup, (char** cmd), { }); |
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_F(void, restart, (void), { while(1); }); |
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_F(void, halt, (void), { while(1); }); |
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_F(void, power_off, (void), { while(1); }); |
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_F(void, idle, (void), { __asm__ __volatile__ ("waiti 0" ::: "memory"); }); |
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_F(void, heartbeat, (void), { }); |
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#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT |
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_F(void, calibrate_ccount, (void), |
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{ |
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pr_err("ERROR: Cannot calibrate cpu frequency! Assuming 10MHz.\n"); |
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ccount_freq = 10 * 1000000UL; |
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}); |
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#endif
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