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 <blogic@openwrt.org> 7 */ 8 #ifndef _LANTIQ_H__ 9 #define _LANTIQ_H__ 10 11 #include <linux/irq.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_cgu_w32(x, y) ltq_w32((x), ltq_cgu_membase + (y)) 25 #define ltq_cgu_r32(x) ltq_r32(ltq_cgu_membase + (x)) 26 27 extern __iomem void *ltq_ebu_membase; 28 extern __iomem void *ltq_cgu_membase; 29 30 extern unsigned int ltq_get_cpu_ver(void); 31 extern unsigned int ltq_get_soc_type(void); 32 33 /* clock speeds */ 34 #define CLOCK_60M 60000000 35 #define CLOCK_83M 83333333 36 #define CLOCK_111M 111111111 37 #define CLOCK_133M 133333333 38 #define CLOCK_167M 166666667 39 #define CLOCK_200M 200000000 40 #define CLOCK_266M 266666666 41 #define CLOCK_333M 333333333 42 #define CLOCK_400M 400000000 43 44 /* spinlock all ebu i/o */ 45 extern spinlock_t ebu_lock; 46 47 /* some irq helpers */ 48 extern void ltq_disable_irq(struct irq_data *data); 49 extern void ltq_mask_and_ack_irq(struct irq_data *data); 50 extern void ltq_enable_irq(struct irq_data *data); 51 52 /* find out what caused the last cpu reset */ 53 extern int ltq_reset_cause(void); 54 #define LTQ_RST_CAUSE_WDTRST 0x20 55 56 #define IOPORT_RESOURCE_START 0x10000000 57 #define IOPORT_RESOURCE_END 0xffffffff 58 #define IOMEM_RESOURCE_START 0x10000000 59 #define IOMEM_RESOURCE_END 0xffffffff 60 #define LTQ_FLASH_START 0x10000000 61 #define LTQ_FLASH_MAX 0x04000000 62 63 #endif 64