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| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2021-04-15 13:50:09 +0300 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@microchip.com> | 2021-07-19 15:32:13 +0300 |
| commit | 6501330f9f5e45a00622dee69a4a005d5943172d (patch) | |
| tree | 33d0c4d8b35144e57b3f301aa6966168257b5894 /arch/arm/mach-at91 | |
| parent | 9d464cc5ac018975b9151ac8d2b68b1b033a3268 (diff) | |
| download | linux-6501330f9f5e45a00622dee69a4a005d5943172d.tar.xz | |
ARM: at91: pm: add pm support for SAMA7G5
Add support for SAMA7G5 power management modes: standby, ulp0, ulp1, backup.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210415105010.569620-24-claudiu.beznea@microchip.com
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/generic.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 37 | ||||
| -rw-r--r-- | arch/arm/mach-at91/sama7.c | 1 |
3 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index 0a4cdcb4985b..0c3960a8b3eb 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -14,12 +14,14 @@ extern void __init at91sam9_pm_init(void); extern void __init sam9x60_pm_init(void); extern void __init sama5_pm_init(void); extern void __init sama5d2_pm_init(void); +extern void __init sama7_pm_init(void); #else 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 sama5_pm_init(void) { } static inline void __init sama5d2_pm_init(void) { } +static inline void __init sama7_pm_init(void) { } #endif #endif /* _AT91_GENERIC_H */ diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index f4e66a7c7d18..24d5fd06d487 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -152,6 +152,17 @@ static const struct of_device_id sam9x60_ws_ids[] = { { /* sentinel */ } }; +static const struct of_device_id sama7g5_ws_ids[] = { + { .compatible = "atmel,at91sam9x5-rtc", .data = &ws_info[1] }, + { .compatible = "microchip,sama7g5-ohci", .data = &ws_info[2] }, + { .compatible = "usb-ohci", .data = &ws_info[2] }, + { .compatible = "atmel,at91sam9g45-ehci", .data = &ws_info[2] }, + { .compatible = "usb-ehci", .data = &ws_info[2] }, + { .compatible = "microchip,sama7g5-sdhci", .data = &ws_info[3] }, + { .compatible = "atmel,at91sam9260-rtt", .data = &ws_info[4] }, + { /* sentinel */ } +}; + static int at91_pm_config_ws(unsigned int pm_mode, bool set) { const struct wakeup_source_info *wsi; @@ -1103,6 +1114,32 @@ void __init sama5d2_pm_init(void) soc_pm.config_pmc_ws = at91_sama5d2_config_pmc_ws; } +void __init sama7_pm_init(void) +{ + static const int modes[] __initconst = { + AT91_PM_STANDBY, AT91_PM_ULP0, AT91_PM_ULP1, AT91_PM_BACKUP, + }; + static const u32 iomaps[] __initconst = { + [AT91_PM_ULP0] = AT91_PM_IOMAP(SFRBU), + [AT91_PM_ULP1] = AT91_PM_IOMAP(SFRBU) | + AT91_PM_IOMAP(SHDWC), + [AT91_PM_BACKUP] = AT91_PM_IOMAP(SFRBU) | + AT91_PM_IOMAP(SHDWC), + }; + + if (!IS_ENABLED(CONFIG_SOC_SAMA7)) + return; + + at91_pm_modes_validate(modes, ARRAY_SIZE(modes)); + + at91_dt_ramc(true); + at91_pm_modes_init(iomaps, ARRAY_SIZE(iomaps)); + at91_pm_init(NULL); + + soc_pm.ws_ids = sama7g5_ws_ids; + soc_pm.config_pmc_ws = at91_sam9x60_config_pmc_ws; +} + static int __init at91_pm_modes_select(char *str) { char *s; diff --git a/arch/arm/mach-at91/sama7.c b/arch/arm/mach-at91/sama7.c index 19d7bcbc97f1..bd43733ede18 100644 --- a/arch/arm/mach-at91/sama7.c +++ b/arch/arm/mach-at91/sama7.c @@ -17,6 +17,7 @@ static void __init sama7_dt_device_init(void) { of_platform_default_populate(NULL, NULL, NULL); + sama7_pm_init(); } static const char *const sama7_dt_board_compat[] __initconst = { |