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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>
2006-01-09 17:05:41 +00:00
/*
[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 10:42:07 +00:00
* 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>
2006-01-09 17:05:41 +00:00
*
* 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.
*/
ARM: at91: generic.h: Add include safe guards The generic.h header file doesn't have any safe guards against multiple inclusion. It only worked so far because all the symbols defined in it were extern, but this is a rather fragile assumption. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-07-01 09:33:15 +00:00
#ifndef _AT91_GENERIC_H
#define _AT91_GENERIC_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>
2012-02-14 17:08:14 +00:00
#include <linux/of.h>
reboot: arm: change reboot_mode to use enum reboot_mode Preparing to move the parsing of reboot= to generic kernel code forces the change in reboot_mode handling to use the enum. [akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c] Signed-off-by: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-08 23:01:40 +00:00
#include <linux/reboot.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 06:27:07 +00:00
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 12:19:32 +00:00
/* 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 07:28:34 +00:00
extern void __init at91_map_io(void);
ARM: at91: SAMA5D4 SoC detection code and low level routines SoC identification code, kernel uncompress and low level debugging routines update. On SAMA5D4, DBGU is at another address AT91_BASE_DBGU2 so another round of detection is needed. We also had to differentiate with SAMA5D3 SoC family and rename some variables. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-09-15 16:15:55 +00:00
extern void __init at91_alt_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>
2011-05-09 19:20:09 +00:00
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 12:19:32 +00:00
[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 09:50:59 +00:00
/* 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 03:40:22 +00:00
extern void __init at91rm9200_set_type(int type);
ARM: AT91: Add AT91RM9200 DT board Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-10-28 18:31:09 +00:00
extern void __init at91rm9200_dt_initialize(void);
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 05:57:51 +00:00
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 09:50:59 +00:00
[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>
2006-07-05 16:22:52 +00:00
/* Interrupts */
ARM: at91: fix hanged boot due to early rtc-interrupt Make sure the RTC-interrupts are masked at boot by adding a new helper function to be used at SOC-init. This fixes hanged boot on all AT91 SOCs with an RTC (but RM9200), for example, after a reset during an RTC-update or if an RTC-alarm goes off after shutdown (e.g. when using RTC wakeup). The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or software reset. This means that their interrupts may be enabled during early boot if, for example, they where not disabled during a previous shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a user reset). Furthermore, an RTC or RTT-alarm may also be active. The RTC and RTT-interrupts use the shared system-interrupt line, which is also used by the PIT, and if an interrupt occurs before a handler (e.g. RTC-driver) has been installed this leads to the system interrupt being disabled and prevents the system from booting. Note that when boot hangs due to an early RTC or RTT-interrupt, the only way to get the system to start again is to remove the backup power (e.g. battery) or to disable the interrupt manually from the bootloader. In particular, a user reset is not sufficient. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: stable@vger.kernel.org # 3.11.x
2013-10-16 09:56:14 +00:00
extern void __init at91_sysirq_mask_rtc(u32 rtc_base);
ARM: at91: fix hanged boot due to early rtt-interrupt Make sure the RTT-interrupts are masked at boot by adding a new helper function to be used at SOC-init. This fixes hanged boot on all AT91 SOCs with an RTT, for example, if an RTT-alarm goes off after a non-clean shutdown (e.g. when using RTC wakeup). The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or software reset. This means that their interrupts may be enabled during early boot if, for example, they where not disabled during a previous shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a user reset). Furthermore, an RTC or RTT-alarm may also be active. The RTC and RTT-interrupts use the shared system-interrupt line, which is also used by the PIT, and if an interrupt occurs before a handler (e.g. RTC-driver) has been installed this leads to the system interrupt being disabled and prevents the system from booting. Note that when boot hangs due to an early RTC or RTT-interrupt, the only way to get the system to start again is to remove the backup power (e.g. battery) or to disable the interrupt manually from the bootloader. In particular, a user reset is not sufficient. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: stable@vger.kernel.org # 3.11.x
2013-10-16 09:56:15 +00:00
extern void __init at91_sysirq_mask_rtt(u32 rtt_base);
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>
2012-02-14 17:08:14 +00:00
[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>
2006-07-05 16:22:52 +00:00
/* Timer */
ARM: delete struct sys_timer Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-11-08 19:40:59 +00:00
extern void at91rm9200_timer_init(void);
[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>
2006-01-09 17:05:41 +00:00
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 12:25:32 +00:00
/* idle */
extern void at91sam9_idle(void);
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 15:15:50 +00:00
/* Matrix */
extern void at91_ioremap_matrix(u32 base_addr);
ARM: at91: generic.h: Add include safe guards The generic.h header file doesn't have any safe guards against multiple inclusion. It only worked so far because all the symbols defined in it were extern, but this is a rather fragile assumption. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-07-01 09:33:15 +00:00
#endif /* _AT91_GENERIC_H */
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