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 56