From: Linus Torvalds Date: Thu, 16 May 2019 15:31:32 +0000 (-0700) Subject: Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc X-Git-Tag: v5.15~6344 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=22c58fd70ca48a29505922b1563826593b08cc00;p=platform%2Fkernel%2Flinux-starfive.git Merge tag 'armsoc-soc' of git://git./linux/kernel/git/soc/soc Pull ARM SoC platform updates from Olof Johansson: "SoC updates, mostly refactorings and cleanups of old legacy platforms. Major themes this release: - Conversion of ixp4xx to a modern platform (drivers, DT, bindings) - Moving some of the ep93xx headers around to get it closer to multiplatform enabled. - Cleanups of Davinci This also contains a few patches that were queued up as fixes before 5.1 but I didn't get sent in before release" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits) ARM: debug-ll: add default address for digicolor ARM: u300: regulator: add MODULE_LICENSE() ARM: ep93xx: move private headers out of mach/* ARM: ep93xx: move pinctrl interfaces into include/linux/soc ARM: ep93xx: keypad: stop using mach/platform.h ARM: ep93xx: move network platform data to separate header ARM: stm32: add AMBA support for stm32 family MAINTAINERS: update arch/arm/mach-davinci ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmu ARM: dts: Add queue manager and NPE to the IXP4xx DTSI soc: ixp4xx: qmgr: Add DT probe code soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr soc: ixp4xx: npe: Add DT probe code soc: ixp4xx: Add DT bindings for IXP4xx NPE soc: ixp4xx: qmgr: Pass resources soc: ixp4xx: Remove unused functions soc: ixp4xx: Uninline several functions soc: ixp4xx: npe: Pass addresses as resources ARM: ixp4xx: Turn the QMGR into a platform device ARM: ixp4xx: Turn the NPE into a platform device ... --- 22c58fd70ca48a29505922b1563826593b08cc00 diff --cc arch/arm/mach-ep93xx/ts72xx.c index a3a20c8,bba6aa5..e9f3690 --- a/arch/arm/mach-ep93xx/ts72xx.c +++ b/arch/arm/mach-ep93xx/ts72xx.c @@@ -22,10 -22,9 +22,10 @@@ #include #include #include +#include - #include - #include + #include "gpio-ep93xx.h" + #include "hardware.h" #include #include diff --cc drivers/clocksource/timer-ixp4xx.c index 0000000,404445b..5c2190b mode 000000,100644..100644 --- a/drivers/clocksource/timer-ixp4xx.c +++ b/drivers/clocksource/timer-ixp4xx.c @@@ -1,0 -1,284 +1,282 @@@ + // SPDX-License-Identifier: GPL-2.0 + /* + * IXP4 timer driver + * Copyright (C) 2019 Linus Walleij + * + * Based on arch/arm/mach-ixp4xx/common.c + * Copyright 2002 (C) Intel Corporation + * Copyright 2003-2004 (C) MontaVista, Software, Inc. + * Copyright (C) Deepak Saxena + */ + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + /* Goes away with OF conversion */ + #include + + /* + * Constants to make it easy to access Timer Control/Status registers + */ + #define IXP4XX_OSTS_OFFSET 0x00 /* Continuous Timestamp */ + #define IXP4XX_OST1_OFFSET 0x04 /* Timer 1 Timestamp */ + #define IXP4XX_OSRT1_OFFSET 0x08 /* Timer 1 Reload */ + #define IXP4XX_OST2_OFFSET 0x0C /* Timer 2 Timestamp */ + #define IXP4XX_OSRT2_OFFSET 0x10 /* Timer 2 Reload */ + #define IXP4XX_OSWT_OFFSET 0x14 /* Watchdog Timer */ + #define IXP4XX_OSWE_OFFSET 0x18 /* Watchdog Enable */ + #define IXP4XX_OSWK_OFFSET 0x1C /* Watchdog Key */ + #define IXP4XX_OSST_OFFSET 0x20 /* Timer Status */ + + /* + * Timer register values and bit definitions + */ + #define IXP4XX_OST_ENABLE 0x00000001 + #define IXP4XX_OST_ONE_SHOT 0x00000002 + /* Low order bits of reload value ignored */ + #define IXP4XX_OST_RELOAD_MASK 0x00000003 + #define IXP4XX_OST_DISABLED 0x00000000 + #define IXP4XX_OSST_TIMER_1_PEND 0x00000001 + #define IXP4XX_OSST_TIMER_2_PEND 0x00000002 + #define IXP4XX_OSST_TIMER_TS_PEND 0x00000004 + #define IXP4XX_OSST_TIMER_WDOG_PEND 0x00000008 + #define IXP4XX_OSST_TIMER_WARM_RESET 0x00000010 + + #define IXP4XX_WDT_KEY 0x0000482E + #define IXP4XX_WDT_RESET_ENABLE 0x00000001 + #define IXP4XX_WDT_IRQ_ENABLE 0x00000002 + #define IXP4XX_WDT_COUNT_ENABLE 0x00000004 + + struct ixp4xx_timer { + void __iomem *base; + unsigned int tick_rate; + u32 latch; + struct clock_event_device clkevt; + #ifdef CONFIG_ARM + struct delay_timer delay_timer; + #endif + }; + + /* + * A local singleton used by sched_clock and delay timer reads, which are + * fast and stateless + */ + static struct ixp4xx_timer *local_ixp4xx_timer; + + static inline struct ixp4xx_timer * + to_ixp4xx_timer(struct clock_event_device *evt) + { + return container_of(evt, struct ixp4xx_timer, clkevt); + } + + static u64 notrace ixp4xx_read_sched_clock(void) + { + return __raw_readl(local_ixp4xx_timer->base + IXP4XX_OSTS_OFFSET); + } + + static u64 ixp4xx_clocksource_read(struct clocksource *c) + { + return __raw_readl(local_ixp4xx_timer->base + IXP4XX_OSTS_OFFSET); + } + + static irqreturn_t ixp4xx_timer_interrupt(int irq, void *dev_id) + { + struct ixp4xx_timer *tmr = dev_id; + struct clock_event_device *evt = &tmr->clkevt; + + /* Clear Pending Interrupt */ + __raw_writel(IXP4XX_OSST_TIMER_1_PEND, + tmr->base + IXP4XX_OSST_OFFSET); + + evt->event_handler(evt); + + return IRQ_HANDLED; + } + + static int ixp4xx_set_next_event(unsigned long cycles, + struct clock_event_device *evt) + { + struct ixp4xx_timer *tmr = to_ixp4xx_timer(evt); + u32 val; + + val = __raw_readl(tmr->base + IXP4XX_OSRT1_OFFSET); + /* Keep enable/oneshot bits */ + val &= IXP4XX_OST_RELOAD_MASK; + __raw_writel((cycles & ~IXP4XX_OST_RELOAD_MASK) | val, + tmr->base + IXP4XX_OSRT1_OFFSET); + + return 0; + } + + static int ixp4xx_shutdown(struct clock_event_device *evt) + { + struct ixp4xx_timer *tmr = to_ixp4xx_timer(evt); + u32 val; + + val = __raw_readl(tmr->base + IXP4XX_OSRT1_OFFSET); + val &= ~IXP4XX_OST_ENABLE; + __raw_writel(val, tmr->base + IXP4XX_OSRT1_OFFSET); + + return 0; + } + + static int ixp4xx_set_oneshot(struct clock_event_device *evt) + { + struct ixp4xx_timer *tmr = to_ixp4xx_timer(evt); + + __raw_writel(IXP4XX_OST_ENABLE | IXP4XX_OST_ONE_SHOT, + tmr->base + IXP4XX_OSRT1_OFFSET); + + return 0; + } + + static int ixp4xx_set_periodic(struct clock_event_device *evt) + { + struct ixp4xx_timer *tmr = to_ixp4xx_timer(evt); + u32 val; + + val = tmr->latch & ~IXP4XX_OST_RELOAD_MASK; + val |= IXP4XX_OST_ENABLE; + __raw_writel(val, tmr->base + IXP4XX_OSRT1_OFFSET); + + return 0; + } + + static int ixp4xx_resume(struct clock_event_device *evt) + { + struct ixp4xx_timer *tmr = to_ixp4xx_timer(evt); + u32 val; + + val = __raw_readl(tmr->base + IXP4XX_OSRT1_OFFSET); + val |= IXP4XX_OST_ENABLE; + __raw_writel(val, tmr->base + IXP4XX_OSRT1_OFFSET); + + return 0; + } + + /* + * IXP4xx timer tick + * We use OS timer1 on the CPU for the timer tick and the timestamp + * counter as a source of real clock ticks to account for missed jiffies. + */ + static __init int ixp4xx_timer_register(void __iomem *base, + int timer_irq, + unsigned int timer_freq) + { + struct ixp4xx_timer *tmr; + int ret; + + tmr = kzalloc(sizeof(*tmr), GFP_KERNEL); + if (!tmr) + return -ENOMEM; + tmr->base = base; + tmr->tick_rate = timer_freq; + + /* + * The timer register doesn't allow to specify the two least + * significant bits of the timeout value and assumes them being zero. + * So make sure the latch is the best value with the two least + * significant bits unset. + */ + tmr->latch = DIV_ROUND_CLOSEST(timer_freq, + (IXP4XX_OST_RELOAD_MASK + 1) * HZ) + * (IXP4XX_OST_RELOAD_MASK + 1); + + local_ixp4xx_timer = tmr; + + /* Reset/disable counter */ + __raw_writel(0, tmr->base + IXP4XX_OSRT1_OFFSET); + + /* Clear any pending interrupt on timer 1 */ + __raw_writel(IXP4XX_OSST_TIMER_1_PEND, + tmr->base + IXP4XX_OSST_OFFSET); + + /* Reset time-stamp counter */ + __raw_writel(0, tmr->base + IXP4XX_OSTS_OFFSET); + + clocksource_mmio_init(NULL, "OSTS", timer_freq, 200, 32, + ixp4xx_clocksource_read); + + tmr->clkevt.name = "ixp4xx timer1"; + tmr->clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; + tmr->clkevt.rating = 200; + tmr->clkevt.set_state_shutdown = ixp4xx_shutdown; + tmr->clkevt.set_state_periodic = ixp4xx_set_periodic; + tmr->clkevt.set_state_oneshot = ixp4xx_set_oneshot; + tmr->clkevt.tick_resume = ixp4xx_resume; + tmr->clkevt.set_next_event = ixp4xx_set_next_event; + tmr->clkevt.cpumask = cpumask_of(0); + tmr->clkevt.irq = timer_irq; + ret = request_irq(timer_irq, ixp4xx_timer_interrupt, + IRQF_TIMER, "IXP4XX-TIMER1", tmr); + if (ret) { + pr_crit("no timer IRQ\n"); + return -ENODEV; + } + clockevents_config_and_register(&tmr->clkevt, timer_freq, + 0xf, 0xfffffffe); + -#ifdef CONFIG_ARM + sched_clock_register(ixp4xx_read_sched_clock, 32, timer_freq); -#endif + + return 0; + } + + /** + * ixp4xx_timer_setup() - Timer setup function to be called from boardfiles + * @timerbase: physical base of timer block + * @timer_irq: Linux IRQ number for the timer + * @timer_freq: Fixed frequency of the timer + */ + void __init ixp4xx_timer_setup(resource_size_t timerbase, + int timer_irq, + unsigned int timer_freq) + { + void __iomem *base; + + base = ioremap(timerbase, 0x100); + if (!base) { + pr_crit("IXP4xx: can't remap timer\n"); + return; + } + ixp4xx_timer_register(base, timer_irq, timer_freq); + } + EXPORT_SYMBOL_GPL(ixp4xx_timer_setup); + + #ifdef CONFIG_OF + static __init int ixp4xx_of_timer_init(struct device_node *np) + { + void __iomem *base; + int irq; + int ret; + + base = of_iomap(np, 0); + if (!base) { + pr_crit("IXP4xx: can't remap timer\n"); + return -ENODEV; + } + + irq = irq_of_parse_and_map(np, 0); + if (irq <= 0) { + pr_err("Can't parse IRQ\n"); + ret = -EINVAL; + goto out_unmap; + } + + /* TODO: get some fixed clocks into the device tree */ + ret = ixp4xx_timer_register(base, irq, 66666000); + if (ret) + goto out_unmap; + return 0; + + out_unmap: + iounmap(base); + return ret; + } + TIMER_OF_DECLARE(ixp4xx, "intel,ixp4xx-timer", ixp4xx_of_timer_init); + #endif diff --cc drivers/firmware/Makefile index 9a3909a,745f490..3fa0b34 --- a/drivers/firmware/Makefile +++ b/drivers/firmware/Makefile @@@ -21,9 -23,9 +21,10 @@@ obj-$(CONFIG_QCOM_SCM_64) += qcom_scm-6 obj-$(CONFIG_QCOM_SCM_32) += qcom_scm-32.o CFLAGS_qcom_scm-32.o :=$(call as-instr,.arch armv7-a\n.arch_extension sec,-DREQUIRES_SEC=1) -march=armv7-a obj-$(CONFIG_TI_SCI_PROTOCOL) += ti_sci.o + obj-$(CONFIG_TRUSTED_FOUNDATIONS) += trusted_foundations.o obj-$(CONFIG_ARM_SCMI_PROTOCOL) += arm_scmi/ +obj-y += psci/ obj-y += broadcom/ obj-y += meson/ obj-$(CONFIG_GOOGLE_FIRMWARE) += google/