mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 06:55:13 +08:00
8014d6f4dd
Both AIC and GPIO controllers are now using the standard of_irq_init() function to initialize IRQs in case of DT use. The DT specific initialization functions are now separated from the non-DT case and are now using "linear" irq domains. The .map() irqdomain operation is responsible for positioning the IRQ handlers. In AIC case, the Linux IRQ number is directly programmed in the hardware to avoid an additional reverse mapping operation. The AIC position its irq domain as the "default" irq domain. For DT case, the priority is not yet filled in the SMR. It will be the subject of another patch. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*
|
|
* linux/arch/arm/mach-at91/generic.h
|
|
*
|
|
* Copyright (C) 2005 David Brownell
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/clkdev.h>
|
|
#include <linux/of.h>
|
|
|
|
/* Map io */
|
|
extern void __init at91_map_io(void);
|
|
extern void __init at91_init_sram(int bank, unsigned long base,
|
|
unsigned int length);
|
|
|
|
/* Processors */
|
|
extern void __init at91rm9200_set_type(int type);
|
|
extern void __init at91_initialize(unsigned long main_clock);
|
|
extern void __init at91x40_initialize(unsigned long main_clock);
|
|
|
|
/* Interrupts */
|
|
extern void __init at91_init_irq_default(void);
|
|
extern void __init at91_init_interrupts(unsigned int priority[]);
|
|
extern void __init at91x40_init_interrupts(unsigned int priority[]);
|
|
extern void __init at91_aic_init(unsigned int priority[]);
|
|
extern int __init at91_aic_of_init(struct device_node *node,
|
|
struct device_node *parent);
|
|
|
|
|
|
/* Timer */
|
|
struct sys_timer;
|
|
extern void at91rm9200_ioremap_st(u32 addr);
|
|
extern struct sys_timer at91rm9200_timer;
|
|
extern void at91sam926x_ioremap_pit(u32 addr);
|
|
extern struct sys_timer at91sam926x_timer;
|
|
extern struct sys_timer at91x40_timer;
|
|
|
|
/* Clocks */
|
|
/*
|
|
* function to specify the clock of the default console. As we do not
|
|
* use the device/driver bus, the dev_name is not intialize. So we need
|
|
* to link the clock to a specific con_id only "usart"
|
|
*/
|
|
extern void __init at91rm9200_set_console_clock(int id);
|
|
extern void __init at91sam9260_set_console_clock(int id);
|
|
extern void __init at91sam9261_set_console_clock(int id);
|
|
extern void __init at91sam9263_set_console_clock(int id);
|
|
extern void __init at91sam9rl_set_console_clock(int id);
|
|
extern void __init at91sam9g45_set_console_clock(int id);
|
|
#ifdef CONFIG_AT91_PMC_UNIT
|
|
extern int __init at91_clock_init(unsigned long main_clock);
|
|
#else
|
|
static int inline at91_clock_init(unsigned long main_clock) { return 0; }
|
|
#endif
|
|
struct device;
|
|
|
|
/* Power Management */
|
|
extern void at91_irq_suspend(void);
|
|
extern void at91_irq_resume(void);
|
|
|
|
/* idle */
|
|
extern void at91sam9_idle(void);
|
|
|
|
/* reset */
|
|
extern void at91_ioremap_rstc(u32 base_addr);
|
|
extern void at91sam9_alt_restart(char, const char *);
|
|
extern void at91sam9g45_restart(char, const char *);
|
|
|
|
/* shutdown */
|
|
extern void at91_ioremap_shdwc(u32 base_addr);
|
|
|
|
/* Matrix */
|
|
extern void at91_ioremap_matrix(u32 base_addr);
|
|
|
|
/* Ram Controler */
|
|
extern void at91_ioremap_ramc(int id, u32 addr, u32 size);
|
|
|
|
/* GPIO */
|
|
#define AT91RM9200_PQFP 3 /* AT91RM9200 PQFP package has 3 banks */
|
|
#define AT91RM9200_BGA 4 /* AT91RM9200 BGA package has 4 banks */
|
|
|
|
struct at91_gpio_bank {
|
|
unsigned short id; /* peripheral ID */
|
|
unsigned long regbase; /* offset from system peripheral base */
|
|
};
|
|
extern void __init at91_gpio_init(struct at91_gpio_bank *, int nr_banks);
|
|
extern void __init at91_gpio_irq_setup(void);
|
|
extern int __init at91_gpio_of_irq_setup(struct device_node *node,
|
|
struct device_node *parent);
|
|
|
|
extern int at91_extern_irq;
|