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WSL2-Linux-Kernel/arch/arm/mach-at91/at91sam9.c

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ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com>
2011-10-10 20:29:24 +04:00
/*
ARM: at91: change board files into SoC files As board files are now DT only and can address all aspects of the SoC family, we can rename them so that the mach-at91 directory looks cleaner. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-27 18:41:55 +03:00
* Setup code for AT91SAM9
ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com>
2011-10-10 20:29:24 +04:00
*
* Copyright (C) 2011 Atmel,
* 2011 Nicolas Ferre <nicolas.ferre@atmel.com>
*
* Licensed under GPLv2 or later.
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/gpio.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 21:08:14 +04:00
#include <linux/of.h>
#include <linux/of_irq.h>
ARM: at91: pm: prepare for multiplatform Split at91_pm_init() in three variants that are called by the respective SoCs .init_machine. This allows to remove the of_machine_is_compatible() calls and move at91_pm_init() out of arch_initcall() which is required for multiplatform. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15 17:59:27 +03:00
#include <linux/of_platform.h>
ARM: at91: prepare sam9 dt boards transition to common clk This patch prepare the transition to common clk for sam9 dt boards by replacing the timer init callback. Clocks registration cannot be done in early init callback (as formerly done by the old clk implementation) because it requires dynamic allocation which is not ready yet during early init. In the other hand, at91 clocks must be registered before at91sam926x_pit_init is called because PIT (Periodic Interval Timer) driver request the master clk (mck). A new function (at91sam9_dt_timer_init) is created to fullfil these needs. This function registers all at91 clks using the dt definition before calling the PIT init function. The device tree clock registration is enabled only if common clk is selected. Else the old clk registration is been done during at91_dt_initialize call. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-03-12 13:43:41 +04:00
#include <linux/clk-provider.h>
ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com>
2011-10-10 20:29:24 +04:00
ARM: at91: sam9: set arm_pm_idle from sam9_dt_device_init As all sam9 SoCs are setting arm_pm_idle to at91sam9_idle(), do it from sam9_dt_device_init(). Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> [nicolas.ferre@atmel.com: adapt patch to newer series] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-16 00:58:08 +03:00
#include <asm/system_misc.h>
ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com>
2011-10-10 20:29:24 +04:00
#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include "generic.h"
ARM: at91: pm: prepare for multiplatform Split at91_pm_init() in three variants that are called by the respective SoCs .init_machine. This allows to remove the of_machine_is_compatible() calls and move at91_pm_init() out of arch_initcall() which is required for multiplatform. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15 17:59:27 +03:00
static void __init sam9_dt_device_init(void)
{
ARM: at91: fix ordering of SRAM and PM initialization The PM initialization needs internal SRAM for allocating a gen_pool and use it to store its PM code. So we need to have of_platform_populate() before this code. Suggested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-23 13:47:37 +03:00
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
ARM: at91: sam9: set arm_pm_idle from sam9_dt_device_init As all sam9 SoCs are setting arm_pm_idle to at91sam9_idle(), do it from sam9_dt_device_init(). Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> [nicolas.ferre@atmel.com: adapt patch to newer series] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-16 00:58:08 +03:00
arm_pm_idle = at91sam9_idle;
ARM: at91: pm: prepare for multiplatform Split at91_pm_init() in three variants that are called by the respective SoCs .init_machine. This allows to remove the of_machine_is_compatible() calls and move at91_pm_init() out of arch_initcall() which is required for multiplatform. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15 17:59:27 +03:00
at91_sam9260_pm_init();
}
ARM: at91: mark const init data with __initconst instead of __initdata As long as there is no other non-const variable marked __initdata in the same compilation unit it doesn't hurt. If there were one however compilation would fail with error: $variablename causes a section type conflict because a section containing const variables is marked read only and so cannot contain non-const variables. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> [nicolas.ferre@atmel.com: update the paths after having re-arranged the patches] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-22 19:19:04 +03:00
static const char *at91_dt_board_compat[] __initconst = {
ARM: at91/dt: do not specify the board any more This will allow to add any board to a compiled kernel by just passing the DTB. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-03-01 10:47:44 +04:00
"atmel,at91sam9",
ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com>
2011-10-10 20:29:24 +04:00
NULL
};
DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
/* Maintainer: Atmel */
.map_io = at91_map_io,
ARM: at91: pm: prepare for multiplatform Split at91_pm_init() in three variants that are called by the respective SoCs .init_machine. This allows to remove the of_machine_is_compatible() calls and move at91_pm_init() out of arch_initcall() which is required for multiplatform. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15 17:59:27 +03:00
.init_machine = sam9_dt_device_init,
ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com>
2011-10-10 20:29:24 +04:00
.dt_compat = at91_dt_board_compat,
MACHINE_END
ARM: at91: pm: prepare for multiplatform Split at91_pm_init() in three variants that are called by the respective SoCs .init_machine. This allows to remove the of_machine_is_compatible() calls and move at91_pm_init() out of arch_initcall() which is required for multiplatform. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15 17:59:27 +03:00
static void __init sam9g45_dt_device_init(void)
{
ARM: at91: fix ordering of SRAM and PM initialization The PM initialization needs internal SRAM for allocating a gen_pool and use it to store its PM code. So we need to have of_platform_populate() before this code. Suggested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-23 13:47:37 +03:00
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
ARM: at91: sam9: set arm_pm_idle from sam9_dt_device_init As all sam9 SoCs are setting arm_pm_idle to at91sam9_idle(), do it from sam9_dt_device_init(). Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> [nicolas.ferre@atmel.com: adapt patch to newer series] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-16 00:58:08 +03:00
arm_pm_idle = at91sam9_idle;
ARM: at91: pm: prepare for multiplatform Split at91_pm_init() in three variants that are called by the respective SoCs .init_machine. This allows to remove the of_machine_is_compatible() calls and move at91_pm_init() out of arch_initcall() which is required for multiplatform. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15 17:59:27 +03:00
at91_sam9g45_pm_init();
}
static const char *at91_9g45_board_compat[] __initconst = {
"atmel,at91sam9g45",
NULL
};
DT_MACHINE_START(at91sam9g45_dt, "Atmel AT91SAM9G45")
/* Maintainer: Atmel */
.map_io = at91_map_io,
.init_machine = sam9g45_dt_device_init,
.dt_compat = at91_9g45_board_compat,
MACHINE_END
ARM: at91: fix PM initialization for newer SoCs Newer SoCs: at91sam9x5, at91sam9n12, sama5d3 and sama5d4 embed a DDR controller and have a different PMC status register layout than the at91sam9g45. Create another at91_sam9x5_pm_init() function to match this compatibility. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-22 18:54:50 +03:00
static void __init sam9x5_dt_device_init(void)
{
ARM: at91: fix ordering of SRAM and PM initialization The PM initialization needs internal SRAM for allocating a gen_pool and use it to store its PM code. So we need to have of_platform_populate() before this code. Suggested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-23 13:47:37 +03:00
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
ARM: at91: sam9: set arm_pm_idle from sam9_dt_device_init As all sam9 SoCs are setting arm_pm_idle to at91sam9_idle(), do it from sam9_dt_device_init(). Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> [nicolas.ferre@atmel.com: adapt patch to newer series] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-16 00:58:08 +03:00
arm_pm_idle = at91sam9_idle;
ARM: at91: fix PM initialization for newer SoCs Newer SoCs: at91sam9x5, at91sam9n12, sama5d3 and sama5d4 embed a DDR controller and have a different PMC status register layout than the at91sam9g45. Create another at91_sam9x5_pm_init() function to match this compatibility. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-22 18:54:50 +03:00
at91_sam9x5_pm_init();
}
static const char *at91_9x5_board_compat[] __initconst = {
"atmel,at91sam9x5",
"atmel,at91sam9n12",
NULL
};
DT_MACHINE_START(at91sam9x5_dt, "Atmel AT91SAM9")
/* Maintainer: Atmel */
.map_io = at91_map_io,
.init_machine = sam9x5_dt_device_init,
.dt_compat = at91_9x5_board_compat,
MACHINE_END