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linux/arch/arm/mach-at91/generic.h

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[ARM] 3240/2: AT91RM9200 support for 2.6 (Core) Patch from SAN People Following changes were made to clock.c: 1) Replaced <asm/hardware/clock.h> with <linux/clk.h> 2) Removed old unused clk_enable & clk_disable. 3) Replaced clk_use/clk_unuse with clk_enable/clk_disable. Otherwise it's the same as the previous patch. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10 01:05:41 +08:00
/*
[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories Now that Linux includes support for the Atmel AT91SAM9260 and AT91SAM9261 processors in addition to the original Atmel AT91RM9200 (with support for more AT91 processors pending), the "mach-at91rm9200" and "arch-at91rm9200" directories should be renamed to indicate their more generic nature. The following git commands should be run BEFORE applying this patch: git-mv arch/arm/mach-at91rm9200 arch/arm/mach-at91 git-mv include/asm-arm/arch-at91rm9200 include/asm-arm/arch-at91 Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-05 18:42:07 +08:00
* linux/arch/arm/mach-at91/generic.h
[ARM] 3240/2: AT91RM9200 support for 2.6 (Core) Patch from SAN People Following changes were made to clock.c: 1) Replaced <asm/hardware/clock.h> with <linux/clk.h> 2) Removed old unused clk_enable & clk_disable. 3) Replaced clk_use/clk_unuse with clk_enable/clk_disable. Otherwise it's the same as the previous patch. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10 01:05:41 +08:00
*
* 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.
*/
at91: switch to CLKDEV_LOOKUP we do not change the clock naming convention so does not need to switch the AVR32 yet Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-02-02 14:27:07 +08:00
#include <linux/clkdev.h>
ARM: at91: AIC and GPIO IRQ device tree initialization 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>
2012-02-15 01:08:14 +08:00
#include <linux/of.h>
at91: switch to CLKDEV_LOOKUP we do not change the clock naming convention so does not need to switch the AVR32 yet Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-02-02 14:27:07 +08:00
at91: fix map_io init usage switch early init to init_early and introduce soc map_io with this Patch we will not do any more early device setup during the map io tks to Russell to point the new call back Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Andrew Victor <linux@maxim.org.za>
2011-04-28 20:19:32 +08:00
/* Map io */
at91: introduce commom AT91_BASE_SYS On all at91 except rm9200 and x40 have the System Controller starts at address 0xffffc000 and has a size of 16KiB. On rm9200 it's start at 0xfffe4000 of 111KiB with non reserved data starting at 0xfffff000 This patch removes the individual definitions of AT91_BASE_SYS and replaces them with a common version at base 0xfffffc000 and size 16KiB and map the same memory space Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-04-23 15:28:34 +08:00
extern void __init at91_map_io(void);
at91: factorize sram init Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-05-10 03:20:09 +08:00
extern void __init at91_init_sram(int bank, unsigned long base,
unsigned int length);
at91: fix map_io init usage switch early init to init_early and introduce soc map_io with this Patch we will not do any more early device setup during the map io tks to Russell to point the new call back Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Andrew Victor <linux@maxim.org.za>
2011-04-28 20:19:32 +08:00
[ARM] 3866/1: AT91 clock update This patch makes the AT91 clock.c support processor-generic (AT91RM9200 and AT91SAM9xxx). The clocks supported by a particular AT91 processor are defined in the processor-specific file and are registered with clock.c at startup. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-27 17:50:59 +08:00
/* Processors */
at91rm9200: introduce at91rm9200_set_type to specficy cpu package as we can not detect it by defaut the type will be bga introduce cpu_is_at91rm9200_bga and cpu_is_at91rm9200_pqfp Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-04-24 11:40:22 +08:00
extern void __init at91rm9200_set_type(int type);
at91: introduce commom AT91_BASE_SYS On all at91 except rm9200 and x40 have the System Controller starts at address 0xffffc000 and has a size of 16KiB. On rm9200 it's start at 0xfffe4000 of 111KiB with non reserved data starting at 0xfffff000 This patch removes the individual definitions of AT91_BASE_SYS and replaces them with a common version at base 0xfffffc000 and size 16KiB and map the same memory space Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-04-23 15:28:34 +08:00
extern void __init at91_initialize(unsigned long main_clock);
[ARM] 4535/1: AT91x40 function prototypes Prototypes for the at91x40 CPU support functions. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-30 09:39:02 +08:00
extern void __init at91x40_initialize(unsigned long main_clock);
ARM: at91/dt: add specific DT soc init This will allow to have static Device mapping and DT probe mapping for the System Controller. Temporary keep the call to ioremap_registers() until we have the binding for the SDRAM/DDR Controller. Temporary keep the main clock hardcoded to 12MHz until we have the binding for the PMC. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-02-28 13:57:51 +08:00
extern void __init at91_dt_initialize(void);
[ARM] 3866/1: AT91 clock update This patch makes the AT91 clock.c support processor-generic (AT91RM9200 and AT91SAM9xxx). The clocks supported by a particular AT91 processor are defined in the processor-specific file and are registered with clock.c at startup. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-27 17:50:59 +08:00
[ARM] 3711/1: AT91 timer update Patch from Andrew Victor The AIC interrupt controller is the same on the Atmel AT91RM9200, AT91SAM9261 and AT91SAM9260 processors. This patch removes any RM9200-specific naming from the IRQ driver, and moves the AT91RM9200's default IRQ priority table into at91rm9200.c. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-06 00:22:52 +08:00
/* Interrupts */
at91: factorize at91 interrupts init to soc they are the same except the default priority Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-04-23 15:28:34 +08:00
extern void __init at91_init_irq_default(void);
extern void __init at91_init_interrupts(unsigned int priority[]);
[ARM] 4535/1: AT91x40 function prototypes Prototypes for the at91x40 CPU support functions. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-30 09:39:02 +08:00
extern void __init at91x40_init_interrupts(unsigned int priority[]);
[ARM] 3711/1: AT91 timer update Patch from Andrew Victor The AIC interrupt controller is the same on the Atmel AT91RM9200, AT91SAM9261 and AT91SAM9260 processors. This patch removes any RM9200-specific naming from the IRQ driver, and moves the AT91RM9200's default IRQ priority table into at91rm9200.c. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-06 00:22:52 +08:00
extern void __init at91_aic_init(unsigned int priority[]);
ARM: at91: AIC and GPIO IRQ device tree initialization 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>
2012-02-15 01:08:14 +08:00
extern int __init at91_aic_of_init(struct device_node *node,
struct device_node *parent);
[ARM] 3240/2: AT91RM9200 support for 2.6 (Core) Patch from SAN People Following changes were made to clock.c: 1) Replaced <asm/hardware/clock.h> with <linux/clk.h> 2) Removed old unused clk_enable & clk_disable. 3) Replaced clk_use/clk_unuse with clk_enable/clk_disable. Otherwise it's the same as the previous patch. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10 01:05:41 +08:00
[ARM] 3711/1: AT91 timer update Patch from Andrew Victor The AIC interrupt controller is the same on the Atmel AT91RM9200, AT91SAM9261 and AT91SAM9260 processors. This patch removes any RM9200-specific naming from the IRQ driver, and moves the AT91RM9200's default IRQ priority table into at91rm9200.c. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-06 00:22:52 +08:00
/* Timer */
[ARM] 3240/2: AT91RM9200 support for 2.6 (Core) Patch from SAN People Following changes were made to clock.c: 1) Replaced <asm/hardware/clock.h> with <linux/clk.h> 2) Removed old unused clk_enable & clk_disable. 3) Replaced clk_use/clk_unuse with clk_enable/clk_disable. Otherwise it's the same as the previous patch. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10 01:05:41 +08:00
struct sys_timer;
ARM: at91: make ST (System Timer) soc independent Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Ryan Mallon <rmallon@gmail.com>
2012-02-20 18:07:39 +08:00
extern void at91rm9200_ioremap_st(u32 addr);
[ARM] 3240/2: AT91RM9200 support for 2.6 (Core) Patch from SAN People Following changes were made to clock.c: 1) Replaced <asm/hardware/clock.h> with <linux/clk.h> 2) Removed old unused clk_enable & clk_disable. 3) Replaced clk_use/clk_unuse with clk_enable/clk_disable. Otherwise it's the same as the previous patch. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10 01:05:41 +08:00
extern struct sys_timer at91rm9200_timer;
ARM: at91: make pit register base soc independent Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-09-18 22:29:50 +08:00
extern void at91sam926x_ioremap_pit(u32 addr);
[ARM] 3948/1: AT91: Initial support for AT91SAM9261 and AT91SAM9260 This patch adds the initial support for the newer Atmel AT91SAM9261 and AT91SAM9260 processors. The code is based on, and makes use of, the existing AT91RM9200 support. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-11-30 19:27:38 +08:00
extern struct sys_timer at91sam926x_timer;
[ARM] 4535/1: AT91x40 function prototypes Prototypes for the at91x40 CPU support functions. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-30 09:39:02 +08:00
extern struct sys_timer at91x40_timer;
[ARM] 3240/2: AT91RM9200 support for 2.6 (Core) Patch from SAN People Following changes were made to clock.c: 1) Replaced <asm/hardware/clock.h> with <linux/clk.h> 2) Removed old unused clk_enable & clk_disable. 3) Replaced clk_use/clk_unuse with clk_enable/clk_disable. Otherwise it's the same as the previous patch. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10 01:05:41 +08:00
[ARM] 3711/1: AT91 timer update Patch from Andrew Victor The AIC interrupt controller is the same on the Atmel AT91RM9200, AT91SAM9261 and AT91SAM9260 processors. This patch removes any RM9200-specific naming from the IRQ driver, and moves the AT91RM9200's default IRQ priority table into at91rm9200.c. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-06 00:22:52 +08:00
/* Clocks */
at91: move clock subsystem init to soc generic init Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-04-24 18:20:28 +08:00
#ifdef CONFIG_AT91_PMC_UNIT
extern int __init at91_clock_init(unsigned long main_clock);
ARM: at91: add pmc DT support Specified the main Oscillator via clock binding. This will allow to do not hardcode it anymore in the DT board at 12MHz. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-03-02 20:44:23 +08:00
extern int __init at91_dt_clock_init(void);
at91: move clock subsystem init to soc generic init Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-04-24 18:20:28 +08:00
#else
static int inline at91_clock_init(unsigned long main_clock) { return 0; }
#endif
[ARM] 3605/1: AT91RM9200 Power Management Patch from Andrew Victor This patch adds the core Power Management support for the AT91RM9200 processor. It will support suspend-to-RAM and standby modes. The suspend-to-RAM functionality is not 100% complete. The code that needs to be execute from the internal SRAM to restore the system is outstanding. For now we just fall through to Standby mode. The AT91-specific at91_suspend_entering_slow_clock() function will eventually be replaced by clk_must_disable() once that functionality is added to mainline clock API. Patch from David Brownell. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-21 02:30:19 +08:00
struct device;
/* Power Management */
extern void at91_irq_suspend(void);
extern void at91_irq_resume(void);
ARM: at91: factorise duplicated at91sam9 idle Remove duplicated at91sam9xxxx_idle() functions introduced by commit c9dfafb "ARM: mach-at91: move special idle code out of line". Replace by a generic at91sam9_idle() function in setup.c common location. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-02-05 20:25:32 +08:00
/* idle */
extern void at91sam9_idle(void);
AT91: reset: extend alternate reset procedure to several chips Several at91sam9 chips need the alternate reset procedure to be sure to halt SDRAM smoothly before resetting the chip. This is an extension of previous patch "Fix AT91SAM9G20 reset" to all chips affected. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2010-10-15 01:14:00 +08:00
/* reset */
ARM: at91: make rstc soc independent Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-11-18 01:25:52 +08:00
extern void at91_ioremap_rstc(u32 base_addr);
ARM: restart: at91: use new restart hook Rather than using a private function pointer, use the existing arm_pm_restart function pointer instead. We no longer need to enable the I-cache in at91sam9_alt_reset() as the caches will now be on when this function is called. Update the function names to use the 'restart' terminology rather than the 'reboot' terminology. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-03 17:53:29 +08:00
extern void at91sam9_alt_restart(char, const char *);
ARM: at91: Fix at91sam9g45 and at91cap9 reset As on the other sam9 we need to cleanly shutdown the DDRAM before rebooting. On those SoC the SDRAM/DDRAM controller is different. So, the assembly code ends up being not cleanly combined with previous at91sam9_alt_restart function. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-11-18 01:41:28 +08:00
extern void at91sam9g45_restart(char, const char *);
AT91: reset: extend alternate reset procedure to several chips Several at91sam9 chips need the alternate reset procedure to be sure to halt SDRAM smoothly before resetting the chip. This is an extension of previous patch "Fix AT91SAM9G20 reset" to all chips affected. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2010-10-15 01:14:00 +08:00
ARM: at91: make shutdown controler soc independent Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-11-01 01:23:20 +08:00
/* shutdown */
extern void at91_ioremap_shdwc(u32 base_addr);
ARM: at91: make matrix register base soc independent Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Cc: linux-usb@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-11-27 23:15:50 +08:00
/* Matrix */
extern void at91_ioremap_matrix(u32 base_addr);
ARM: at91: make sdram/ddr register base soc independent Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-02-13 12:58:53 +08:00
/* Ram Controler */
extern void at91_ioremap_ramc(int id, u32 addr, u32 size);
[ARM] 3867/1: AT91 GPIO update This patch makes the AT91 gpio.c support processor-generic (AT91RM9200 and AT91SAM9xxx). The GPIO controllers supported by a particular AT91 processor are defined in the processor-specific file and are registered with gpio.c at startup. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-27 20:23:00 +08:00
/* 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 */
ARM: at91: make gpio register base soc independant Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Ryan Mallon <rmallon@gmail.com>
2011-09-16 23:37:50 +08:00
unsigned long regbase; /* offset from system peripheral base */
[ARM] 3867/1: AT91 GPIO update This patch makes the AT91 gpio.c support processor-generic (AT91RM9200 and AT91SAM9xxx). The GPIO controllers supported by a particular AT91 processor are defined in the processor-specific file and are registered with gpio.c at startup. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-27 20:23:00 +08:00
};
extern void __init at91_gpio_init(struct at91_gpio_bank *, int nr_banks);
extern void __init at91_gpio_irq_setup(void);
ARM: at91: AIC and GPIO IRQ device tree initialization 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>
2012-02-15 01:08:14 +08:00
extern int __init at91_gpio_of_irq_setup(struct device_node *node,
struct device_node *parent);
[ARM] 3946/1: AT91: at91_arch_reset and at91_extern_irq The external interrupt sources are different on the various AT91 processors. This patch introduces the global 'at91_extern_irq' variable that contains a bitset of the available external interrupt sources. The processor reset mechanism also differs on the various AT91 processors. This patch also adds a global 'at91_arch_reset' callback (from system.h) into the processor-specific code to perform the reset. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-11-30 17:01:47 +08:00
extern int at91_extern_irq;