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Linux/arch/mips/include/asm/mach-lantiq/lantiq.h

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  1 /*
  2  *  This program is free software; you can redistribute it and/or modify it
  3  *  under the terms of the GNU General Public License version 2 as published
  4  *  by the Free Software Foundation.
  5  *
  6  *  Copyright (C) 2010 John Crispin <john@phrozen.org>
  7  */
  8 #ifndef _LANTIQ_H__
  9 #define _LANTIQ_H__
 10 
 11 #include <linux/irq.h>
 12 #include <linux/device.h>
 13 #include <linux/clk.h>
 14 
 15 /* generic reg access functions */
 16 #define ltq_r32(reg)            __raw_readl(reg)
 17 #define ltq_w32(val, reg)       __raw_writel(val, reg)
 18 #define ltq_w32_mask(clear, set, reg)   \
 19         ltq_w32((ltq_r32(reg) & ~(clear)) | (set), reg)
 20 #define ltq_r8(reg)             __raw_readb(reg)
 21 #define ltq_w8(val, reg)        __raw_writeb(val, reg)
 22 
 23 /* register access macros for EBU and CGU */
 24 #define ltq_ebu_w32(x, y)       ltq_w32((x), ltq_ebu_membase + (y))
 25 #define ltq_ebu_r32(x)          ltq_r32(ltq_ebu_membase + (x))
 26 #define ltq_ebu_w32_mask(x, y, z) \
 27         ltq_w32_mask(x, y, ltq_ebu_membase + (z))
 28 extern __iomem void *ltq_ebu_membase;
 29 
 30 /* spinlock all ebu i/o */
 31 extern spinlock_t ebu_lock;
 32 
 33 /* some irq helpers */
 34 extern void ltq_disable_irq(struct irq_data *data);
 35 extern void ltq_mask_and_ack_irq(struct irq_data *data);
 36 extern void ltq_enable_irq(struct irq_data *data);
 37 extern int ltq_eiu_get_irq(int exin);
 38 
 39 /* clock handling */
 40 extern int clk_activate(struct clk *clk);
 41 extern void clk_deactivate(struct clk *clk);
 42 extern struct clk *clk_get_cpu(void);
 43 extern struct clk *clk_get_fpi(void);
 44 extern struct clk *clk_get_io(void);
 45 extern struct clk *clk_get_ppe(void);
 46 
 47 /* find out what bootsource we have */
 48 extern unsigned char ltq_boot_select(void);
 49 /* find out the soc type */
 50 extern int ltq_soc_type(void);
 51 
 52 #define IOPORT_RESOURCE_START   0x10000000
 53 #define IOPORT_RESOURCE_END     0xffffffff
 54 #define IOMEM_RESOURCE_START    0x10000000
 55 #define IOMEM_RESOURCE_END      0xffffffff
 56 
 57 #endif
 58 

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