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author | Arnd Bergmann <arnd@arndb.de> | 2024-09-05 16:13:14 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2024-09-05 16:13:14 +0200 |
commit | 3b42530638442f656bbb5e292e8a0432e2a7efa8 (patch) | |
tree | f34b42071fb9290511e232f294f3a1e773817837 /arch/arm | |
parent | soc: fsl: qe: ucc: Export ucc_mux_set_grant_tsa_bkpt (diff) | |
parent | ARM: at91: Kconfig: add config flag for SAM9X7 SoC (diff) | |
download | linux-3b42530638442f656bbb5e292e8a0432e2a7efa8.tar.xz linux-3b42530638442f656bbb5e292e8a0432e2a7efa8.zip |
Merge tag 'at91-soc-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into soc/drivers
Microchip AT91 SoC updates for v6.12
It contains:
- support for the Microchip SAM9X7 SoC:
-- power management
-- SoC identification
-- sysreg documentation updates
-- necessary Kconfig updates
* tag 'at91-soc-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: at91: Kconfig: add config flag for SAM9X7 SoC
ARM: at91: add support in SoC driver for new sam9x7
ARM: at91: pm: add sam9x7 SoC init config
ARM: at91: pm: add support for sam9x7 SoC family
dt-bindings: atmel-sysreg: add sam9x7
Link: https://lore.kernel.org/r/20240901133110.2038675-3-claudiu.beznea@tuxon.dev
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-at91/Kconfig | 22 | ||||
-rw-r--r-- | arch/arm/mach-at91/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/generic.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/pm.c | 29 | ||||
-rw-r--r-- | arch/arm/mach-at91/sam9x7.c | 33 |
5 files changed, 84 insertions, 3 deletions
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index a8c022b4c053..344f5305f69a 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -141,11 +141,27 @@ config SOC_SAM9X60 help Select this if you are using Microchip's SAM9X60 SoC +config SOC_SAM9X7 + bool "SAM9X7" + depends on ARCH_MULTI_V5 + select ATMEL_AIC5_IRQ + select ATMEL_PM if PM + select CPU_ARM926T + select HAVE_AT91_USB_CLK + select HAVE_AT91_GENERATED_CLK + select HAVE_AT91_SAM9X60_PLL + select MEMORY + select PINCTRL_AT91 + select SOC_SAM_V4_V5 + select SRAM if PM + help + Select this if you are using Microchip's SAM9X7 SoC + comment "Clocksource driver selection" config ATMEL_CLOCKSOURCE_PIT bool "Periodic Interval Timer (PIT) support" - depends on SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5 + depends on SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAM9X7 || SOC_SAMA5 default SOC_AT91SAM9 || SOC_SAMA5 select ATMEL_PIT help @@ -155,7 +171,7 @@ config ATMEL_CLOCKSOURCE_PIT config ATMEL_CLOCKSOURCE_TCB bool "Timer Counter Blocks (TCB) support" - default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5 + default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAM9X7 || SOC_SAMA5 select ATMEL_TCB_CLKSRC help Select this to get a high precision clocksource based on a @@ -166,7 +182,7 @@ config ATMEL_CLOCKSOURCE_TCB config MICROCHIP_CLOCKSOURCE_PIT64B bool "64-bit Periodic Interval Timer (PIT64B) support" - default SOC_SAM9X60 || SOC_SAMA7 + default SOC_SAM9X60 || SOC_SAM9X7 || SOC_SAMA7 select MICROCHIP_PIT64B help Select this to get a high resolution clockevent (SAM9X60) or diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 794bd12ab0a8..7d8a7bc44e65 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o obj-$(CONFIG_SOC_AT91SAM9) += at91sam9.o obj-$(CONFIG_SOC_SAM9X60) += sam9x60.o +obj-$(CONFIG_SOC_SAM9X7) += sam9x7.o obj-$(CONFIG_SOC_SAMA5) += sama5.o sam_secure.o obj-$(CONFIG_SOC_SAMA7) += sama7.o obj-$(CONFIG_SOC_SAMV7) += samv7.o diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index 0c3960a8b3eb..acf0b3c82a30 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -12,6 +12,7 @@ extern void __init at91rm9200_pm_init(void); extern void __init at91sam9_pm_init(void); extern void __init sam9x60_pm_init(void); +extern void __init sam9x7_pm_init(void); extern void __init sama5_pm_init(void); extern void __init sama5d2_pm_init(void); extern void __init sama7_pm_init(void); @@ -19,6 +20,7 @@ extern void __init sama7_pm_init(void); static inline void __init at91rm9200_pm_init(void) { } static inline void __init at91sam9_pm_init(void) { } static inline void __init sam9x60_pm_init(void) { } +static inline void __init sam9x7_pm_init(void) { } static inline void __init sama5_pm_init(void) { } static inline void __init sama5d2_pm_init(void) { } static inline void __init sama7_pm_init(void) { } diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 345b91dc6627..b9b995f8a36e 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -233,6 +233,13 @@ static const struct of_device_id sama7g5_ws_ids[] = { { /* sentinel */ } }; +static const struct of_device_id sam9x7_ws_ids[] = { + { .compatible = "microchip,sam9x7-rtc", .data = &ws_info[1] }, + { .compatible = "microchip,sam9x7-rtt", .data = &ws_info[4] }, + { .compatible = "microchip,sam9x7-gem", .data = &ws_info[5] }, + { /* sentinel */ } +}; + static int at91_pm_config_ws(unsigned int pm_mode, bool set) { const struct wakeup_source_info *wsi; @@ -1361,6 +1368,7 @@ static const struct of_device_id atmel_pmc_ids[] __initconst = { { .compatible = "atmel,sama5d4-pmc", .data = &pmc_infos[1] }, { .compatible = "atmel,sama5d2-pmc", .data = &pmc_infos[1] }, { .compatible = "microchip,sam9x60-pmc", .data = &pmc_infos[4] }, + { .compatible = "microchip,sam9x7-pmc", .data = &pmc_infos[4] }, { .compatible = "microchip,sama7g5-pmc", .data = &pmc_infos[5] }, { /* sentinel */ }, }; @@ -1499,6 +1507,27 @@ void __init sam9x60_pm_init(void) soc_pm.config_pmc_ws = at91_sam9x60_config_pmc_ws; } +void __init sam9x7_pm_init(void) +{ + static const int modes[] __initconst = { + AT91_PM_STANDBY, AT91_PM_ULP0, + }; + int ret; + + if (!IS_ENABLED(CONFIG_SOC_SAM9X7)) + return; + + at91_pm_modes_validate(modes, ARRAY_SIZE(modes)); + ret = at91_dt_ramc(false); + if (ret) + return; + + at91_pm_init(NULL); + + soc_pm.ws_ids = sam9x7_ws_ids; + soc_pm.config_pmc_ws = at91_sam9x60_config_pmc_ws; +} + void __init at91sam9_pm_init(void) { int ret; diff --git a/arch/arm/mach-at91/sam9x7.c b/arch/arm/mach-at91/sam9x7.c new file mode 100644 index 000000000000..e1ff30b5b09b --- /dev/null +++ b/arch/arm/mach-at91/sam9x7.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Setup code for SAM9X7. + * + * Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries + * + * Author: Varshini Rajendran <varshini.rajendran@microchip.com> + */ + +#include <linux/of.h> +#include <linux/of_platform.h> + +#include <asm/mach/arch.h> + +#include "generic.h" + +static void __init sam9x7_init(void) +{ + of_platform_default_populate(NULL, NULL, NULL); + + sam9x7_pm_init(); +} + +static const char * const sam9x7_dt_board_compat[] __initconst = { + "microchip,sam9x7", + NULL +}; + +DT_MACHINE_START(sam9x7_dt, "Microchip SAM9X7") + /* Maintainer: Microchip */ + .init_machine = sam9x7_init, + .dt_compat = sam9x7_dt_board_compat, +MACHINE_END |