From c3f5b8fde71f6ab15d4fd8921997d62ef98d803a Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:54:31 +0000 Subject: ARM: at91: pm: introduce at91_soc_pm structure To have per SoC PM information add a new structure which embed a member of type struct at91_pm_data. This will allow easy addition of new information without contaminate struct at91_pm_data that is passed to the last phase suspend function (at91_suspend_sram_fn). Signed-off-by: Claudiu Beznea Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/pm.c | 118 +++++++++++++++++++++++++----------------------- 1 file changed, 62 insertions(+), 56 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 51e808adb00c..ce2ff86968f6 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -39,6 +39,17 @@ extern void at91_pinctrl_gpio_suspend(void); extern void at91_pinctrl_gpio_resume(void); #endif +struct at91_soc_pm { + struct at91_pm_data data; +}; + +static struct at91_soc_pm soc_pm = { + .data = { + .standby_mode = AT91_PM_STANDBY, + .suspend_mode = AT91_PM_ULP0, + }, +}; + static const match_table_t pm_modes __initconst = { { AT91_PM_STANDBY, "standby" }, { AT91_PM_ULP0, "ulp0" }, @@ -47,16 +58,11 @@ static const match_table_t pm_modes __initconst = { { -1, NULL }, }; -static struct at91_pm_data pm_data = { - .standby_mode = AT91_PM_STANDBY, - .suspend_mode = AT91_PM_ULP0, -}; - #define at91_ramc_read(id, field) \ - __raw_readl(pm_data.ramc[id] + field) + __raw_readl(soc_pm.data.ramc[id] + field) #define at91_ramc_write(id, field, value) \ - __raw_writel(value, pm_data.ramc[id] + field) + __raw_writel(value, soc_pm.data.ramc[id] + field) static int at91_pm_valid_state(suspend_state_t state) { @@ -116,21 +122,21 @@ static int at91_pm_config_ws(unsigned int pm_mode, bool set) if (pm_mode != AT91_PM_ULP1) return 0; - if (!pm_data.pmc || !pm_data.shdwc) + if (!soc_pm.data.pmc || !soc_pm.data.shdwc) return -EPERM; if (!set) { - writel(mode, pm_data.pmc + AT91_PMC_FSMR); + writel(mode, soc_pm.data.pmc + AT91_PMC_FSMR); return 0; } /* SHDWC.WUIR */ - val = readl(pm_data.shdwc + 0x0c); + val = readl(soc_pm.data.shdwc + 0x0c); mode |= (val & 0x3ff); polarity |= ((val >> 16) & 0x3ff); /* SHDWC.MR */ - val = readl(pm_data.shdwc + 0x04); + val = readl(soc_pm.data.shdwc + 0x04); /* Loop through defined wakeup sources. */ for_each_matching_node_and_match(np, sama5d2_ws_ids, &match) { @@ -155,8 +161,8 @@ put_device: } if (mode) { - writel(mode, pm_data.pmc + AT91_PMC_FSMR); - writel(polarity, pm_data.pmc + AT91_PMC_FSPR); + writel(mode, soc_pm.data.pmc + AT91_PMC_FSMR); + writel(polarity, soc_pm.data.pmc + AT91_PMC_FSPR); } else { pr_err("AT91: PM: no ULP1 wakeup sources found!"); } @@ -171,18 +177,18 @@ static int at91_pm_begin(suspend_state_t state) { switch (state) { case PM_SUSPEND_MEM: - pm_data.mode = pm_data.suspend_mode; + soc_pm.data.mode = soc_pm.data.suspend_mode; break; case PM_SUSPEND_STANDBY: - pm_data.mode = pm_data.standby_mode; + soc_pm.data.mode = soc_pm.data.standby_mode; break; default: - pm_data.mode = -1; + soc_pm.data.mode = -1; } - return at91_pm_config_ws(pm_data.mode, true); + return at91_pm_config_ws(soc_pm.data.mode, true); } /* @@ -194,10 +200,10 @@ static int at91_pm_verify_clocks(void) unsigned long scsr; int i; - scsr = readl(pm_data.pmc + AT91_PMC_SCSR); + scsr = readl(soc_pm.data.pmc + AT91_PMC_SCSR); /* USB must not be using PLLB */ - if ((scsr & pm_data.uhp_udp_mask) != 0) { + if ((scsr & soc_pm.data.uhp_udp_mask) != 0) { pr_err("AT91: PM - Suspend-to-RAM with USB still active\n"); return 0; } @@ -208,7 +214,7 @@ static int at91_pm_verify_clocks(void) if ((scsr & (AT91_PMC_PCK0 << i)) == 0) continue; - css = readl(pm_data.pmc + AT91_PMC_PCKR(i)) & AT91_PMC_CSS; + css = readl(soc_pm.data.pmc + AT91_PMC_PCKR(i)) & AT91_PMC_CSS; if (css != AT91_PMC_CSS_SLOW) { pr_err("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css); return 0; @@ -230,7 +236,7 @@ static int at91_pm_verify_clocks(void) */ int at91_suspend_entering_slow_clock(void) { - return (pm_data.mode >= AT91_PM_ULP0); + return (soc_pm.data.mode >= AT91_PM_ULP0); } EXPORT_SYMBOL(at91_suspend_entering_slow_clock); @@ -243,14 +249,14 @@ static int at91_suspend_finish(unsigned long val) flush_cache_all(); outer_disable(); - at91_suspend_sram_fn(&pm_data); + at91_suspend_sram_fn(&soc_pm.data); return 0; } static void at91_pm_suspend(suspend_state_t state) { - if (pm_data.mode == AT91_PM_BACKUP) { + if (soc_pm.data.mode == AT91_PM_BACKUP) { pm_bu->suspended = 1; cpu_suspend(0, at91_suspend_finish); @@ -289,7 +295,7 @@ static int at91_pm_enter(suspend_state_t state) /* * Ensure that clocks are in a valid state. */ - if (pm_data.mode >= AT91_PM_ULP0 && + if (soc_pm.data.mode >= AT91_PM_ULP0 && !at91_pm_verify_clocks()) goto error; @@ -318,7 +324,7 @@ error: */ static void at91_pm_end(void) { - at91_pm_config_ws(pm_data.mode, false); + at91_pm_config_ws(soc_pm.data.mode, false); } @@ -351,7 +357,7 @@ static void at91rm9200_standby(void) " str %2, [%1, %3]\n\t" " mcr p15, 0, %0, c7, c0, 4\n\t" : - : "r" (0), "r" (pm_data.ramc[0]), + : "r" (0), "r" (soc_pm.data.ramc[0]), "r" (1), "r" (AT91_MC_SDRAMC_SRR)); } @@ -374,7 +380,7 @@ static void at91_ddr_standby(void) at91_ramc_write(0, AT91_DDRSDRC_MDR, mdr); } - if (pm_data.ramc[1]) { + if (soc_pm.data.ramc[1]) { saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR); lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB; lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH; @@ -392,14 +398,14 @@ static void at91_ddr_standby(void) /* self-refresh mode now */ at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0); - if (pm_data.ramc[1]) + if (soc_pm.data.ramc[1]) at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1); cpu_do_idle(); at91_ramc_write(0, AT91_DDRSDRC_MDR, saved_mdr0); at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0); - if (pm_data.ramc[1]) { + if (soc_pm.data.ramc[1]) { at91_ramc_write(0, AT91_DDRSDRC_MDR, saved_mdr1); at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1); } @@ -429,7 +435,7 @@ static void at91sam9_sdram_standby(void) u32 lpr0, lpr1 = 0; u32 saved_lpr0, saved_lpr1 = 0; - if (pm_data.ramc[1]) { + if (soc_pm.data.ramc[1]) { saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR); lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB; lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH; @@ -441,13 +447,13 @@ static void at91sam9_sdram_standby(void) /* self-refresh mode now */ at91_ramc_write(0, AT91_SDRAMC_LPR, lpr0); - if (pm_data.ramc[1]) + if (soc_pm.data.ramc[1]) at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1); cpu_do_idle(); at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr0); - if (pm_data.ramc[1]) + if (soc_pm.data.ramc[1]) at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1); } @@ -480,14 +486,14 @@ static __init void at91_dt_ramc(void) const struct ramc_info *ramc; for_each_matching_node_and_match(np, ramc_ids, &of_id) { - pm_data.ramc[idx] = of_iomap(np, 0); - if (!pm_data.ramc[idx]) + soc_pm.data.ramc[idx] = of_iomap(np, 0); + if (!soc_pm.data.ramc[idx]) panic(pr_fmt("unable to map ramc[%d] cpu registers\n"), idx); ramc = of_id->data; if (!standby) standby = ramc->idle; - pm_data.memctrl = ramc->memctrl; + soc_pm.data.memctrl = ramc->memctrl; idx++; } @@ -509,12 +515,12 @@ static void at91rm9200_idle(void) * Disable the processor clock. The processor will be automatically * re-enabled by an interrupt or by a reset. */ - writel(AT91_PMC_PCK, pm_data.pmc + AT91_PMC_SCDR); + writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR); } static void at91sam9_idle(void) { - writel(AT91_PMC_PCK, pm_data.pmc + AT91_PMC_SCDR); + writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR); cpu_do_idle(); } @@ -566,8 +572,8 @@ static void __init at91_pm_sram_init(void) static bool __init at91_is_pm_mode_active(int pm_mode) { - return (pm_data.standby_mode == pm_mode || - pm_data.suspend_mode == pm_mode); + return (soc_pm.data.standby_mode == pm_mode || + soc_pm.data.suspend_mode == pm_mode); } static int __init at91_pm_backup_init(void) @@ -586,7 +592,7 @@ static int __init at91_pm_backup_init(void) return ret; } - pm_data.sfrbu = of_iomap(np, 0); + soc_pm.data.sfrbu = of_iomap(np, 0); of_node_put(np); np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam"); @@ -620,8 +626,8 @@ static int __init at91_pm_backup_init(void) return 0; securam_fail: - iounmap(pm_data.sfrbu); - pm_data.sfrbu = NULL; + iounmap(soc_pm.data.sfrbu); + soc_pm.data.sfrbu = NULL; return ret; } @@ -630,10 +636,10 @@ static void __init at91_pm_use_default_mode(int pm_mode) if (pm_mode != AT91_PM_ULP1 && pm_mode != AT91_PM_BACKUP) return; - if (pm_data.standby_mode == pm_mode) - pm_data.standby_mode = AT91_PM_ULP0; - if (pm_data.suspend_mode == pm_mode) - pm_data.suspend_mode = AT91_PM_ULP0; + if (soc_pm.data.standby_mode == pm_mode) + soc_pm.data.standby_mode = AT91_PM_ULP0; + if (soc_pm.data.suspend_mode == pm_mode) + soc_pm.data.suspend_mode = AT91_PM_ULP0; } static void __init at91_pm_modes_init(void) @@ -651,7 +657,7 @@ static void __init at91_pm_modes_init(void) goto ulp1_default; } - pm_data.shdwc = of_iomap(np, 0); + soc_pm.data.shdwc = of_iomap(np, 0); of_node_put(np); ret = at91_pm_backup_init(); @@ -665,8 +671,8 @@ static void __init at91_pm_modes_init(void) return; unmap: - iounmap(pm_data.shdwc); - pm_data.shdwc = NULL; + iounmap(soc_pm.data.shdwc); + soc_pm.data.shdwc = NULL; ulp1_default: at91_pm_use_default_mode(AT91_PM_ULP1); backup_default: @@ -709,14 +715,14 @@ static void __init at91_pm_init(void (*pm_idle)(void)) platform_device_register(&at91_cpuidle_device); pmc_np = of_find_matching_node_and_match(NULL, atmel_pmc_ids, &of_id); - pm_data.pmc = of_iomap(pmc_np, 0); - if (!pm_data.pmc) { + soc_pm.data.pmc = of_iomap(pmc_np, 0); + if (!soc_pm.data.pmc) { pr_err("AT91: PM not supported, PMC not found\n"); return; } pmc = of_id->data; - pm_data.uhp_udp_mask = pmc->uhp_udp_mask; + soc_pm.data.uhp_udp_mask = pmc->uhp_udp_mask; if (pm_idle) arm_pm_idle = pm_idle; @@ -726,8 +732,8 @@ static void __init at91_pm_init(void (*pm_idle)(void)) if (at91_suspend_sram_fn) { suspend_set_ops(&at91_pm_ops); pr_info("AT91: PM: standby: %s, suspend: %s\n", - pm_modes[pm_data.standby_mode].pattern, - pm_modes[pm_data.suspend_mode].pattern); + pm_modes[soc_pm.data.standby_mode].pattern, + pm_modes[soc_pm.data.suspend_mode].pattern); } else { pr_info("AT91: PM not supported, due to no SRAM allocated\n"); } @@ -793,8 +799,8 @@ static int __init at91_pm_modes_select(char *str) if (suspend < 0) return 0; - pm_data.standby_mode = standby; - pm_data.suspend_mode = suspend; + soc_pm.data.standby_mode = standby; + soc_pm.data.suspend_mode = suspend; return 0; } -- cgit v1.2.3 From 01c7031cfa7308c2a6d46636bda2e51be6474cf4 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:54:41 +0000 Subject: ARM: at91: pm: initial PM support for SAM9X60 Add initial PM support for SAM9X60. This include idle, WFI and ULP0. Signed-off-by: Claudiu Beznea Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/at91sam9.c | 18 ++++++++++++++++++ arch/arm/mach-at91/generic.h | 2 ++ arch/arm/mach-at91/pm.c | 14 ++++++++++++++ 3 files changed, 34 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/at91sam9.c b/arch/arm/mach-at91/at91sam9.c index 3dbdef4d3cbf..c12563b09656 100644 --- a/arch/arm/mach-at91/at91sam9.c +++ b/arch/arm/mach-at91/at91sam9.c @@ -32,3 +32,21 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM9") .init_machine = at91sam9_init, .dt_compat = at91_dt_board_compat, MACHINE_END + +static void __init sam9x60_init(void) +{ + of_platform_default_populate(NULL, NULL, NULL); + + sam9x60_pm_init(); +} + +static const char *const sam9x60_dt_board_compat[] __initconst = { + "microchip,sam9x60", + NULL +}; + +DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60") + /* Maintainer: Microchip */ + .init_machine = sam9x60_init, + .dt_compat = sam9x60_dt_board_compat, +MACHINE_END diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index e2bd17237964..72b45accfa0f 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -14,11 +14,13 @@ #ifdef CONFIG_PM extern void __init at91rm9200_pm_init(void); 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); #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) { } #endif diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index ce2ff86968f6..e42db02eafe4 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -518,6 +518,11 @@ static void at91rm9200_idle(void) writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR); } +static void at91sam9x60_idle(void) +{ + cpu_do_idle(); +} + static void at91sam9_idle(void) { writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR); @@ -754,6 +759,15 @@ void __init at91rm9200_pm_init(void) at91_pm_init(at91rm9200_idle); } +void __init sam9x60_pm_init(void) +{ + if (!IS_ENABLED(CONFIG_SOC_AT91SAM9)) + return; + + at91_dt_ramc(); + at91_pm_init(at91sam9x60_idle); +} + void __init at91sam9_pm_init(void) { if (!IS_ENABLED(CONFIG_SOC_AT91SAM9)) -- cgit v1.2.3 From 2fa86e5200a49b3f236a0835f3976c3148148206 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:54:47 +0000 Subject: ARM: at91: pm: keep at91_pm_backup_init() only for SAMA5D2 SoCs In at91_pm_backup_init() return if it is not about SAMA5D2 SoCs. Signed-off-by: Claudiu Beznea Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/pm.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index e42db02eafe4..c83f78000ab3 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -588,6 +588,9 @@ static int __init at91_pm_backup_init(void) struct platform_device *pdev = NULL; int ret = -ENODEV; + if (!IS_ENABLED(CONFIG_SOC_SAMA5D2)) + return -EPERM; + if (!at91_is_pm_mode_active(AT91_PM_BACKUP)) return 0; -- cgit v1.2.3 From a958156dac936d336f6f56fd2de86e36bc868ff4 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:54:51 +0000 Subject: ARM: at91: pm: add support for per SoC wakeup source configuration Add support for per SoC wakeup source configuration. In this way we could have per SoC wakeup sources, shutdown controller and power management controller configurations for ULP1 power management mode. Signed-off-by: Claudiu Beznea Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/pm.c | 42 ++++++++++++++++++++++++++++++++++-------- 1 file changed, 34 insertions(+), 8 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index c83f78000ab3..27264caa4ec6 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -40,6 +40,9 @@ extern void at91_pinctrl_gpio_resume(void); #endif struct at91_soc_pm { + int (*config_shdwc_ws)(void __iomem *shdwc, u32 *mode, u32 *polarity); + int (*config_pmc_ws)(void __iomem *pmc, u32 mode, u32 polarity); + const struct of_device_id *ws_ids; struct at91_pm_data data; }; @@ -122,7 +125,7 @@ static int at91_pm_config_ws(unsigned int pm_mode, bool set) if (pm_mode != AT91_PM_ULP1) return 0; - if (!soc_pm.data.pmc || !soc_pm.data.shdwc) + if (!soc_pm.data.pmc || !soc_pm.data.shdwc || !soc_pm.ws_ids) return -EPERM; if (!set) { @@ -130,16 +133,14 @@ static int at91_pm_config_ws(unsigned int pm_mode, bool set) return 0; } - /* SHDWC.WUIR */ - val = readl(soc_pm.data.shdwc + 0x0c); - mode |= (val & 0x3ff); - polarity |= ((val >> 16) & 0x3ff); + if (soc_pm.config_shdwc_ws) + soc_pm.config_shdwc_ws(soc_pm.data.shdwc, &mode, &polarity); /* SHDWC.MR */ val = readl(soc_pm.data.shdwc + 0x04); /* Loop through defined wakeup sources. */ - for_each_matching_node_and_match(np, sama5d2_ws_ids, &match) { + for_each_matching_node_and_match(np, soc_pm.ws_ids, &match) { pdev = of_find_device_by_node(np); if (!pdev) continue; @@ -161,8 +162,8 @@ put_device: } if (mode) { - writel(mode, soc_pm.data.pmc + AT91_PMC_FSMR); - writel(polarity, soc_pm.data.pmc + AT91_PMC_FSPR); + if (soc_pm.config_pmc_ws) + soc_pm.config_pmc_ws(soc_pm.data.pmc, mode, polarity); } else { pr_err("AT91: PM: no ULP1 wakeup sources found!"); } @@ -170,6 +171,27 @@ put_device: return mode ? 0 : -EPERM; } +static int at91_sama5d2_config_shdwc_ws(void __iomem *shdwc, u32 *mode, + u32 *polarity) +{ + u32 val; + + /* SHDWC.WUIR */ + val = readl(shdwc + 0x0c); + *mode |= (val & 0x3ff); + *polarity |= ((val >> 16) & 0x3ff); + + return 0; +} + +static int at91_sama5d2_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity) +{ + writel(mode, pmc + AT91_PMC_FSMR); + writel(polarity, pmc + AT91_PMC_FSPR); + + return 0; +} + /* * Called after processes are frozen, but before we shutdown devices. */ @@ -796,6 +818,10 @@ void __init sama5d2_pm_init(void) at91_pm_modes_init(); sama5_pm_init(); + + soc_pm.ws_ids = sama5d2_ws_ids; + soc_pm.config_shdwc_ws = at91_sama5d2_config_shdwc_ws; + soc_pm.config_pmc_ws = at91_sama5d2_config_pmc_ws; } static int __init at91_pm_modes_select(char *str) -- cgit v1.2.3 From eaedc0d379da6d1157a4f274d186001d11615b2b Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:54:57 +0000 Subject: ARM: at91: pm: add ULP1 support for SAM9X60 Add ULP1 support for SAM9X60. In pm_suspend.S enable RC oscillator in PMC if it is not enabled. At resume the state before suspend is restored. Signed-off-by: Claudiu Beznea Acked-by: Stephen Boyd Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/pm.c | 24 ++++++++++++++++++++++++ arch/arm/mach-at91/pm_suspend.S | 41 ++++++++++++++++++++++++++++++++++++++++- include/linux/clk/at91_pmc.h | 1 + 3 files changed, 65 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 27264caa4ec6..5571658b3c46 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -100,6 +100,8 @@ static const struct wakeup_source_info ws_info[] = { { .pmc_fsmr_bit = AT91_PMC_RTCAL, .shdwc_mr_bit = BIT(17) }, { .pmc_fsmr_bit = AT91_PMC_USBAL }, { .pmc_fsmr_bit = AT91_PMC_SDMMC_CD }, + { .pmc_fsmr_bit = AT91_PMC_RTTAL }, + { .pmc_fsmr_bit = AT91_PMC_RXLP_MCE }, }; static const struct of_device_id sama5d2_ws_ids[] = { @@ -114,6 +116,17 @@ static const struct of_device_id sama5d2_ws_ids[] = { { /* sentinel */ } }; +static const struct of_device_id sam9x60_ws_ids[] = { + { .compatible = "atmel,at91sam9x5-rtc", .data = &ws_info[1] }, + { .compatible = "atmel,at91rm9200-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 = "atmel,at91sam9260-rtt", .data = &ws_info[4] }, + { .compatible = "cdns,sam9x60-macb", .data = &ws_info[5] }, + { /* sentinel */ } +}; + static int at91_pm_config_ws(unsigned int pm_mode, bool set) { const struct wakeup_source_info *wsi; @@ -192,6 +205,13 @@ static int at91_sama5d2_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity) return 0; } +static int at91_sam9x60_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity) +{ + writel(mode, pmc + AT91_PMC_FSMR); + + return 0; +} + /* * Called after processes are frozen, but before we shutdown devices. */ @@ -789,8 +809,12 @@ void __init sam9x60_pm_init(void) if (!IS_ENABLED(CONFIG_SOC_AT91SAM9)) return; + at91_pm_modes_init(); at91_dt_ramc(); at91_pm_init(at91sam9x60_idle); + + soc_pm.ws_ids = sam9x60_ws_ids; + soc_pm.config_pmc_ws = at91_sam9x60_config_pmc_ws; } void __init at91sam9_pm_init(void) diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index bfe1c4d06901..8b18cad1dcf5 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -197,8 +197,26 @@ ENDPROC(at91_backup_mode) .macro at91_pm_ulp1_mode ldr pmc, .pmc_base - /* Switch the main clock source to 12-MHz RC oscillator */ + /* Save RC oscillator state and check if it is enabled. */ + ldr tmp1, [pmc, #AT91_PMC_SR] + str tmp1, .saved_osc_status + tst tmp1, #AT91_PMC_MOSCRCS + bne 2f + + /* Enable RC oscillator */ ldr tmp1, [pmc, #AT91_CKGR_MOR] + orr tmp1, tmp1, #AT91_PMC_MOSCRCEN + bic tmp1, tmp1, #AT91_PMC_KEY_MASK + orr tmp1, tmp1, #AT91_PMC_KEY + str tmp1, [pmc, #AT91_CKGR_MOR] + + /* Wait main RC stabilization */ +1: ldr tmp1, [pmc, #AT91_PMC_SR] + tst tmp1, #AT91_PMC_MOSCRCS + beq 1b + + /* Switch the main clock source to 12-MHz RC oscillator */ +2: ldr tmp1, [pmc, #AT91_CKGR_MOR] bic tmp1, tmp1, #AT91_PMC_MOSCSEL bic tmp1, tmp1, #AT91_PMC_KEY_MASK orr tmp1, tmp1, #AT91_PMC_KEY @@ -262,6 +280,25 @@ ENDPROC(at91_backup_mode) str tmp1, [pmc, #AT91_PMC_MCKR] wait_mckrdy + + /* Restore RC oscillator state */ + ldr tmp1, .saved_osc_status + tst tmp1, #AT91_PMC_MOSCRCS + bne 3f + + /* Disable RC oscillator */ + ldr tmp1, [pmc, #AT91_CKGR_MOR] + bic tmp1, tmp1, #AT91_PMC_MOSCRCEN + bic tmp1, tmp1, #AT91_PMC_KEY_MASK + orr tmp1, tmp1, #AT91_PMC_KEY + str tmp1, [pmc, #AT91_CKGR_MOR] + + /* Wait RC oscillator disable done */ +4: ldr tmp1, [pmc, #AT91_PMC_SR] + tst tmp1, #AT91_PMC_MOSCRCS + bne 4b + +3: .endm ENTRY(at91_ulp_mode) @@ -475,6 +512,8 @@ ENDPROC(at91_sramc_self_refresh) .word 0 .saved_sam9_mdr1: .word 0 +.saved_osc_status: + .word 0 ENTRY(at91_pm_suspend_in_sram_sz) .word .-at91_pm_suspend_in_sram diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h index 931ab05f771d..bd3a65c0bad3 100644 --- a/include/linux/clk/at91_pmc.h +++ b/include/linux/clk/at91_pmc.h @@ -159,6 +159,7 @@ #define AT91_PMC_FSMR 0x70 /* Fast Startup Mode Register */ #define AT91_PMC_FSTT(n) BIT(n) +#define AT91_PMC_RTTAL BIT(16) #define AT91_PMC_RTCAL BIT(17) /* RTC Alarm Enable */ #define AT91_PMC_USBAL BIT(18) /* USB Resume Enable */ #define AT91_PMC_SDMMC_CD BIT(19) /* SDMMC Card Detect Enable */ -- cgit v1.2.3 From bc0779bd8f1317faddf65385f7af1f1fe229f23b Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:55:01 +0000 Subject: ARM: at91: pm: disable RC oscillator in ULP0 Disable RC oscillator in ULP0 as datasheet specifies. Signed-off-by: Claudiu Beznea Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/pm_suspend.S | 39 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 37 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index 8b18cad1dcf5..5c33023f9129 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -178,11 +178,46 @@ ENDPROC(at91_backup_mode) orr tmp1, tmp1, #AT91_PMC_KEY str tmp1, [pmc, #AT91_CKGR_MOR] + /* Save RC oscillator state */ + ldr tmp1, [pmc, #AT91_PMC_SR] + str tmp1, .saved_osc_status + tst tmp1, #AT91_PMC_MOSCRCS + bne 1f + + /* Turn off RC oscillator */ + ldr tmp1, [pmc, #AT91_CKGR_MOR] + bic tmp1, tmp1, #AT91_PMC_MOSCRCEN + bic tmp1, tmp1, #AT91_PMC_KEY_MASK + orr tmp1, tmp1, #AT91_PMC_KEY + str tmp1, [pmc, #AT91_CKGR_MOR] + + /* Wait main RC disabled done */ +2: ldr tmp1, [pmc, #AT91_PMC_SR] + tst tmp1, #AT91_PMC_MOSCRCS + bne 2b + /* Wait for interrupt */ - at91_cpu_idle +1: at91_cpu_idle - /* Turn on the crystal oscillator */ + /* Restore RC oscillator state */ + ldr tmp1, .saved_osc_status + tst tmp1, #AT91_PMC_MOSCRCS + beq 4f + + /* Turn on RC oscillator */ ldr tmp1, [pmc, #AT91_CKGR_MOR] + orr tmp1, tmp1, #AT91_PMC_MOSCRCEN + bic tmp1, tmp1, #AT91_PMC_KEY_MASK + orr tmp1, tmp1, #AT91_PMC_KEY + str tmp1, [pmc, #AT91_CKGR_MOR] + + /* Wait main RC stabilization */ +3: ldr tmp1, [pmc, #AT91_PMC_SR] + tst tmp1, #AT91_PMC_MOSCRCS + beq 3b + + /* Turn on the crystal oscillator */ +4: ldr tmp1, [pmc, #AT91_CKGR_MOR] orr tmp1, tmp1, #AT91_PMC_MOSCEN orr tmp1, tmp1, #AT91_PMC_KEY str tmp1, [pmc, #AT91_CKGR_MOR] -- cgit v1.2.3 From 2725d70aa5138284ba2cebf0ef51dd23e0c9ea21 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 14 Feb 2019 15:55:06 +0000 Subject: ARM: at91: pm: do not disable/enable PLLA for ULP modes There is no need to disable/enable PLLA when switching to one of the ULP modes. The PLLA consumers should take care of this. Signed-off-by: Claudiu Beznea Signed-off-by: Alexandre Belloni Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/pm_suspend.S | 31 ------------------------------- 1 file changed, 31 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index 5c33023f9129..77e29309cc6e 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -50,15 +50,6 @@ tmp2 .req r5 beq 1b .endm -/* - * Wait until PLLA has locked. - */ - .macro wait_pllalock -1: ldr tmp1, [pmc, #AT91_PMC_SR] - tst tmp1, #AT91_PMC_LOCKA - beq 1b - .endm - /* * Put the processor to enter the idle state */ @@ -351,14 +342,6 @@ ENTRY(at91_ulp_mode) wait_mckrdy - /* Save PLLA setting and disable it */ - ldr tmp1, [pmc, #AT91_CKGR_PLLAR] - str tmp1, .saved_pllar - - mov tmp1, #AT91_PMC_PLLCOUNT - orr tmp1, tmp1, #(1 << 29) /* bit 29 always set */ - str tmp1, [pmc, #AT91_CKGR_PLLAR] - ldr r0, .pm_mode cmp r0, #AT91_PM_ULP1 beq ulp1_mode @@ -373,18 +356,6 @@ ulp1_mode: ulp_exit: ldr pmc, .pmc_base - /* Restore PLLA setting */ - ldr tmp1, .saved_pllar - str tmp1, [pmc, #AT91_CKGR_PLLAR] - - tst tmp1, #(AT91_PMC_MUL & 0xff0000) - bne 3f - tst tmp1, #(AT91_PMC_MUL & ~0xff0000) - beq 4f -3: - wait_pllalock -4: - /* * Restore master clock setting */ @@ -537,8 +508,6 @@ ENDPROC(at91_sramc_self_refresh) .word 0 .saved_mckr: .word 0 -.saved_pllar: - .word 0 .saved_sam9_lpr: .word 0 .saved_sam9_lpr1: -- cgit v1.2.3 From cb46b0991c273a001e73ca9cd44b067e2c596892 Mon Sep 17 00:00:00 2001 From: Andrey Zhizhikin Date: Wed, 27 Feb 2019 16:50:18 +0000 Subject: ARM: socfpga_defconfig: enable support for large block devices Enable CONFIG_LBDAF, which is required by ext4 fs. This option could handle both ext3 and ext4, with ext4 requires this option to be enabled, otherwise the filesystem is mounted RO mode. Since the LBDAF is enabled by default for 32-bit systems, simply removing the current "not set" entry enables the support. Signed-off-by: Andrey Zhizhikin Signed-off-by: Dinh Nguyen --- arch/arm/configs/socfpga_defconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/configs/socfpga_defconfig b/arch/arm/configs/socfpga_defconfig index 08d1b3e11d68..c96d93fb68c6 100644 --- a/arch/arm/configs/socfpga_defconfig +++ b/arch/arm/configs/socfpga_defconfig @@ -21,7 +21,6 @@ CONFIG_NEON=y CONFIG_OPROFILE=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y -# CONFIG_LBDAF is not set # CONFIG_BLK_DEV_BSG is not set CONFIG_NET=y CONFIG_PACKET=y -- cgit v1.2.3 From 3037271388eee90633b97a92445cb3b216394911 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 28 Mar 2019 16:33:07 +0100 Subject: ARM: at91: remove HAVE_FB_ATMEL for sama5 SoC as they use DRM SAMA5 devices use the newer DRM driver for LCD. They don't need the older FB driver: remove the Kconfig option for them. Signed-off-by: Nicolas Ferre Signed-off-by: Ludovic Desroches --- arch/arm/mach-at91/Kconfig | 3 --- 1 file changed, 3 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 903f23c309df..01b1bdb4fb6e 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -21,7 +21,6 @@ config SOC_SAMA5D2 depends on ARCH_MULTI_V7 select SOC_SAMA5 select CACHE_L2X0 - select HAVE_FB_ATMEL select HAVE_AT91_UTMI select HAVE_AT91_USB_CLK select HAVE_AT91_H32MX @@ -36,7 +35,6 @@ config SOC_SAMA5D3 bool "SAMA5D3 family" depends on ARCH_MULTI_V7 select SOC_SAMA5 - select HAVE_FB_ATMEL select HAVE_AT91_UTMI select HAVE_AT91_SMD select HAVE_AT91_USB_CLK @@ -50,7 +48,6 @@ config SOC_SAMA5D4 depends on ARCH_MULTI_V7 select SOC_SAMA5 select CACHE_L2X0 - select HAVE_FB_ATMEL select HAVE_AT91_UTMI select HAVE_AT91_SMD select HAVE_AT91_USB_CLK -- cgit v1.2.3 From 11e600a8c79db090688475074a6ad13234f07541 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Tue, 16 Apr 2019 02:37:32 +0300 Subject: ARM: OMAP1: ams-delta: fix early boot crash when LED support is disabled When we boot with the LED support (CONFIG_NEW_LEDS) disabled, gpio_led_register_device() will return a NULL pointer and we try to dereference it. Fix by checking also for a NULL pointer. Fixes: 19a2668a8ae3 ("ARM: OMAP1: ams-delta: Provide GPIO lookup table for LED device") Signed-off-by: Aaro Koskinen Acked-by: Pavel Machek Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-ams-delta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c index 1b15d593837e..b6e814166ee0 100644 --- a/arch/arm/mach-omap1/board-ams-delta.c +++ b/arch/arm/mach-omap1/board-ams-delta.c @@ -749,7 +749,7 @@ static void __init ams_delta_init(void) ARRAY_SIZE(ams_delta_gpio_tables)); leds_pdev = gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata); - if (!IS_ERR(leds_pdev)) { + if (!IS_ERR_OR_NULL(leds_pdev)) { leds_gpio_table.dev_id = dev_name(&leds_pdev->dev); gpiod_add_lookup_table(&leds_gpio_table); } -- cgit v1.2.3 From c60fed1dfd4472bc8ac31b20c833c0ef3e049511 Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Mon, 15 Apr 2019 10:57:42 +0200 Subject: ARM: at91: sama5: make ov2640 as a module OV2640 is a detachable camera that we use to test the Image Sensor Interface. Make it as a module, it will reduce the kernel image size. Signed-off-by: Tudor Ambarus Signed-off-by: Ludovic Desroches --- arch/arm/configs/sama5_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/configs/sama5_defconfig b/arch/arm/configs/sama5_defconfig index b0026f73083d..e977e4b3521f 100644 --- a/arch/arm/configs/sama5_defconfig +++ b/arch/arm/configs/sama5_defconfig @@ -150,7 +150,7 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y CONFIG_V4L_PLATFORM_DRIVERS=y CONFIG_SOC_CAMERA=y CONFIG_VIDEO_ATMEL_ISI=y -CONFIG_SOC_CAMERA_OV2640=y +CONFIG_SOC_CAMERA_OV2640=m CONFIG_DRM=y CONFIG_DRM_ATMEL_HLCDC=y CONFIG_DRM_PANEL_SIMPLE=y -- cgit v1.2.3 From 7971cc408d11e9fb6dd2823f81d3a23465700dd0 Mon Sep 17 00:00:00 2001 From: Chris Packham Date: Mon, 18 Feb 2019 15:46:45 +1300 Subject: ARM: mvebu: kirkwood: remove error message when retrieving mac address Kirkwood has always had the ability to retrieve the local-mac-address from the hardware (usually this was configured by the bootloader). This is particularly useful when dealing with a legacy non-DT aware bootloader. The "error" message just indicated that the board used an old bootloader and in many cases users can't do anything about this. The message probably should have been pr_info() to inform the user that the kernel has been helpful but rather than than let's remove it entirely to make the kernel less noisy. Signed-off-by: Chris Packham Signed-off-by: Gregory CLEMENT --- arch/arm/mach-mvebu/kirkwood.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mvebu/kirkwood.c b/arch/arm/mach-mvebu/kirkwood.c index 0aa88105d46e..bf3ff0f580c2 100644 --- a/arch/arm/mach-mvebu/kirkwood.c +++ b/arch/arm/mach-mvebu/kirkwood.c @@ -107,8 +107,6 @@ static void __init kirkwood_dt_eth_fixup(void) clk_prepare_enable(clk); /* store MAC address register contents in local-mac-address */ - pr_err(FW_INFO "%pOF: local-mac-address is not set\n", np); - pmac = kzalloc(sizeof(*pmac) + 6, GFP_KERNEL); if (!pmac) goto eth_fixup_no_mem; -- cgit v1.2.3 From fce638e85350852294096d82d57a696b7cbb22b5 Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Wed, 24 Apr 2019 10:39:16 -0500 Subject: ARM: socfpga_defconfig: enable LTC2497 Enable the LTC2497 driver to support the two LTC2497's that are on the SoCFPGA Arria10 Devkit. Signed-off-by: Alan Tull Signed-off-by: Dinh Nguyen --- arch/arm/configs/socfpga_defconfig | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/configs/socfpga_defconfig b/arch/arm/configs/socfpga_defconfig index c96d93fb68c6..2bdfafa8c29f 100644 --- a/arch/arm/configs/socfpga_defconfig +++ b/arch/arm/configs/socfpga_defconfig @@ -126,6 +126,8 @@ CONFIG_RTC_DRV_DS1307=y CONFIG_DMADEVICES=y CONFIG_PL330_DMA=y CONFIG_DMATEST=m +CONFIG_IIO=y +CONFIG_LTC2497=y CONFIG_FPGA=y CONFIG_FPGA_MGR_SOCFPGA=y CONFIG_FPGA_MGR_SOCFPGA_A10=y -- cgit v1.2.3 From 8f11b5ab441d3a80de7f079598a548350d3eed0b Mon Sep 17 00:00:00 2001 From: Wen Yang Date: Tue, 5 Mar 2019 19:32:55 +0800 Subject: ARM: mvebu: fix a leaked reference by adding missing of_node_put The call to of_get_next_child returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: ./arch/arm/mach-mvebu/pm-board.c:135:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 88, but without a corresponding object release within this functio Signed-off-by: Wen Yang Cc: Jason Cooper Cc: Andrew Lunn Cc: Gregory Clement Cc: Sebastian Hesselbarth Cc: Russell King Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Gregory CLEMENT --- arch/arm/mach-mvebu/pm-board.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mvebu/pm-board.c b/arch/arm/mach-mvebu/pm-board.c index db17121d7d63..070552511699 100644 --- a/arch/arm/mach-mvebu/pm-board.c +++ b/arch/arm/mach-mvebu/pm-board.c @@ -79,7 +79,7 @@ static void mvebu_armada_pm_enter(void __iomem *sdram_reg, u32 srcmd) static int __init mvebu_armada_pm_init(void) { struct device_node *np; - struct device_node *gpio_ctrl_np; + struct device_node *gpio_ctrl_np = NULL; int ret = 0, i; if (!of_machine_is_compatible("marvell,axp-gp")) @@ -126,18 +126,23 @@ static int __init mvebu_armada_pm_init(void) goto out; } + if (gpio_ctrl_np) + of_node_put(gpio_ctrl_np); gpio_ctrl_np = args.np; pic_raw_gpios[i] = args.args[0]; } gpio_ctrl = of_iomap(gpio_ctrl_np, 0); - if (!gpio_ctrl) - return -ENOMEM; + if (!gpio_ctrl) { + ret = -ENOMEM; + goto out; + } mvebu_pm_suspend_init(mvebu_armada_pm_enter); out: of_node_put(np); + of_node_put(gpio_ctrl_np); return ret; } -- cgit v1.2.3 From 3ab2b5fdd1d8fa92dae631b913553e8798be23a7 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Thu, 11 Apr 2019 09:54:02 +0200 Subject: ARM: mvebu: drop unnecessary label The label mvebu_boot_wa_start is not necessary and causes a build issue when building with LLVM's integrated assembler: AS arch/arm/mach-mvebu/pmsu_ll.o arch/arm/mach-mvebu/pmsu_ll.S:59:1: error: invalid symbol redefinition mvebu_boot_wa_start: ^ Drop the label. Signed-off-by: Stefan Agner Acked-by: Nicolas Pitre Signed-off-by: Gregory CLEMENT --- arch/arm/mach-mvebu/pmsu_ll.S | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mvebu/pmsu_ll.S b/arch/arm/mach-mvebu/pmsu_ll.S index 88651221dbdd..c1fb713e9306 100644 --- a/arch/arm/mach-mvebu/pmsu_ll.S +++ b/arch/arm/mach-mvebu/pmsu_ll.S @@ -56,7 +56,6 @@ ENDPROC(armada_38x_cpu_resume) /* The following code will be executed from SRAM */ ENTRY(mvebu_boot_wa_start) -mvebu_boot_wa_start: ARM_BE8(setend be) adr r0, 1f ldr r0, [r0] @ load the address of the -- cgit v1.2.3 From 969ad77c14ab34d0046b013f2502de72647711d1 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Thu, 11 Apr 2019 09:54:03 +0200 Subject: ARM: mvebu: prefix coprocessor operand with p In every other instance where mrc is used the coprocessor operand is prefix with p (e.g. p15). Use the p prefix in this case too. This fixes a build issue when using LLVM's integrated assembler: arch/arm/mach-mvebu/coherency_ll.S:69:6: error: invalid operand for instruction mrc 15, 0, r3, cr0, cr0, 5 ^ arch/arm/mach-mvebu/pmsu_ll.S:19:6: error: invalid operand for instruction mrc 15, 0, r0, cr0, cr0, 5 @ get the CPU ID ^ Signed-off-by: Stefan Agner Acked-by: Nicolas Pitre Signed-off-by: Gregory CLEMENT --- arch/arm/mach-mvebu/coherency_ll.S | 2 +- arch/arm/mach-mvebu/pmsu_ll.S | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mvebu/coherency_ll.S b/arch/arm/mach-mvebu/coherency_ll.S index 8b2fbc8b6bc6..2d962fe48821 100644 --- a/arch/arm/mach-mvebu/coherency_ll.S +++ b/arch/arm/mach-mvebu/coherency_ll.S @@ -66,7 +66,7 @@ ENDPROC(ll_get_coherency_base) * fabric registers */ ENTRY(ll_get_coherency_cpumask) - mrc 15, 0, r3, cr0, cr0, 5 + mrc p15, 0, r3, cr0, cr0, 5 and r3, r3, #15 mov r2, #(1 << 24) lsl r3, r2, r3 diff --git a/arch/arm/mach-mvebu/pmsu_ll.S b/arch/arm/mach-mvebu/pmsu_ll.S index c1fb713e9306..7aae9a25cfeb 100644 --- a/arch/arm/mach-mvebu/pmsu_ll.S +++ b/arch/arm/mach-mvebu/pmsu_ll.S @@ -16,7 +16,7 @@ ENTRY(armada_38x_scu_power_up) mrc p15, 4, r1, c15, c0 @ get SCU base address orr r1, r1, #0x8 @ SCU CPU Power Status Register - mrc 15, 0, r0, cr0, cr0, 5 @ get the CPU ID + mrc p15, 0, r0, cr0, cr0, 5 @ get the CPU ID and r0, r0, #15 add r1, r1, r0 mov r0, #0x0 -- cgit v1.2.3 From 7af2ea3b29b1640f5aafe79d7c110ce66190c04a Mon Sep 17 00:00:00 2001 From: Nicholas Mc Guire Date: Sun, 14 Apr 2019 06:49:50 +0200 Subject: ARM: mvebu: drop return from void function The return statement is unnecessary here - so drop it. Signed-off-by: Nicholas Mc Guire Signed-off-by: Gregory CLEMENT --- arch/arm/mach-mvebu/board-v7.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c index 0b10acd7d1b9..d2df5ef9382b 100644 --- a/arch/arm/mach-mvebu/board-v7.c +++ b/arch/arm/mach-mvebu/board-v7.c @@ -136,7 +136,6 @@ static void __init i2c_quirk(void) of_update_property(np, new_compat); } - return; } static void __init mvebu_dt_init(void) -- cgit v1.2.3 From 6a38df676a0a06bfc7ff8607ac62ccd6d95969ad Mon Sep 17 00:00:00 2001 From: Adam Ford Date: Tue, 30 Apr 2019 07:47:44 -0500 Subject: ARM: dts: logicpd-som-lv: Fix MMC1 card detect The card detect pin was incorrectly using IRQ_TYPE_LEVEL_LOW instead of GPIO_ACTIVE_LOW when reading the state of the CD pin. This was previosly fixed on Torpedo, but missed on the SOM-LV Fixes: 5cb8b0fa55a9 ("ARM: dts: Move most of logicpd-som-lv-37xx-devkit.dts to logicpd-som-lv-baseboard.dtsi") Signed-off-by: Adam Ford Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi index 4990ed90dcea..3e39b9a1f35d 100644 --- a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi +++ b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi @@ -153,7 +153,7 @@ pinctrl-names = "default"; pinctrl-0 = <&mmc1_pins>; wp-gpios = <&gpio4 30 GPIO_ACTIVE_HIGH>; /* gpio_126 */ - cd-gpios = <&gpio4 14 IRQ_TYPE_LEVEL_LOW>; /* gpio_110 */ + cd-gpios = <&gpio4 14 GPIO_ACTIVE_LOW>; /* gpio_110 */ vmmc-supply = <&vmmc1>; bus-width = <4>; cap-power-off-card; -- cgit v1.2.3 From 8e7b65a6eb7a8876b389afb34176a41eb3d70238 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Mon, 6 May 2019 08:31:09 +0200 Subject: ARM: ixp4xx: Remove duplicated include from common.c Remove duplicated include. Signed-off-by: YueHaibing Signed-off-by: Linus Walleij Signed-off-by: Olof Johansson --- arch/arm/mach-ixp4xx/common.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index cc5f15679d29..381f452de28d 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include -- cgit v1.2.3