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

   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))
  26 extern __iomem void *ltq_ebu_membase;
  27
  28 /* spinlock all ebu i/o */
  29 extern spinlock_t ebu_lock;
  30
  31 /* some irq helpers */
  32 extern void ltq_disable_irq(struct irq_data *data);
  33 extern void ltq_mask_and_ack_irq(struct irq_data *data);
  34 extern void ltq_enable_irq(struct irq_data *data);
  35 extern int ltq_eiu_get_irq(int exin);
  36
  37 /* clock handling */
  38 extern int clk_activate(struct clk *clk);
  39 extern void clk_deactivate(struct clk *clk);
  40 extern struct clk *clk_get_cpu(void);
  41 extern struct clk *clk_get_fpi(void);
  42 extern struct clk *clk_get_io(void);
  43 extern struct clk *clk_get_ppe(void);
  44
  45 /* find out what bootsource we have */
  46 extern unsigned char ltq_boot_select(void);
  47 /* find out the soc type */
  48 extern 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