linux/arch/mips/include/asm/mach-lantiq/lantiq.h
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   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *
   4 *  Copyright (C) 2010 John Crispin <john@phrozen.org>
   5 */
   6#ifndef _LANTIQ_H__
   7#define _LANTIQ_H__
   8
   9#include <linux/irq.h>
  10#include <linux/device.h>
  11#include <linux/clk.h>
  12
  13/* generic reg access functions */
  14#define ltq_r32(reg)            __raw_readl(reg)
  15#define ltq_w32(val, reg)       __raw_writel(val, reg)
  16#define ltq_w32_mask(clear, set, reg)   \
  17        ltq_w32((ltq_r32(reg) & ~(clear)) | (set), reg)
  18#define ltq_r8(reg)             __raw_readb(reg)
  19#define ltq_w8(val, reg)        __raw_writeb(val, reg)
  20
  21/* register access macros for EBU and CGU */
  22#define ltq_ebu_w32(x, y)       ltq_w32((x), ltq_ebu_membase + (y))
  23#define ltq_ebu_r32(x)          ltq_r32(ltq_ebu_membase + (x))
  24#define ltq_ebu_w32_mask(x, y, z) \
  25        ltq_w32_mask(x, y, ltq_ebu_membase + (z))
  26extern __iomem void *ltq_ebu_membase;
  27
  28/* spinlock all ebu i/o */
  29extern spinlock_t ebu_lock;
  30
  31/* some irq helpers */
  32extern void ltq_disable_irq(struct irq_data *data);
  33extern void ltq_mask_and_ack_irq(struct irq_data *data);
  34extern void ltq_enable_irq(struct irq_data *data);
  35extern int ltq_eiu_get_irq(int exin);
  36
  37/* clock handling */
  38extern int clk_activate(struct clk *clk);
  39extern void clk_deactivate(struct clk *clk);
  40extern struct clk *clk_get_cpu(void);
  41extern struct clk *clk_get_fpi(void);
  42extern struct clk *clk_get_io(void);
  43extern struct clk *clk_get_ppe(void);
  44
  45/* find out what bootsource we have */
  46extern unsigned char ltq_boot_select(void);
  47/* find out the soc type */
  48extern int ltq_soc_type(void);
  49
  50#define IOPORT_RESOURCE_START   0x10000000
  51#define IOPORT_RESOURCE_END     0xffffffff
  52#define IOMEM_RESOURCE_START    0x10000000
  53#define IOMEM_RESOURCE_END      0xffffffff
  54
  55#endif
  56