diff options
Diffstat (limited to 'arch/arm')
50 files changed, 490 insertions, 234 deletions
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts index 8ae29c955c11..c17097d2c167 100644 --- a/arch/arm/boot/dts/am437x-sk-evm.dts +++ b/arch/arm/boot/dts/am437x-sk-evm.dts @@ -49,7 +49,7 @@ pinctrl-0 = <&matrix_keypad_pins>; debounce-delay-ms = <5>; - col-scan-delay-us = <1500>; + col-scan-delay-us = <5>; row-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH /* Bank5, pin5 */ &gpio5 6 GPIO_ACTIVE_HIGH>; /* Bank5, pin6 */ @@ -473,7 +473,7 @@ interrupt-parent = <&gpio0>; interrupts = <31 0>; - wake-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio1 28 GPIO_ACTIVE_LOW>; touchscreen-size-x = <480>; touchscreen-size-y = <272>; diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts index 15f198e4864d..7128fad991ac 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15.dts +++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts @@ -18,6 +18,7 @@ aliases { rtc0 = &mcp_rtc; rtc1 = &tps659038_rtc; + rtc2 = &rtc; }; memory { @@ -83,7 +84,7 @@ gpio_fan: gpio_fan { /* Based on 5v 500mA AFB02505HHB */ compatible = "gpio-fan"; - gpios = <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>; + gpios = <&tps659038_gpio 2 GPIO_ACTIVE_HIGH>; gpio-fan,speed-map = <0 0>, <13000 1>; #cooling-cells = <2>; @@ -130,8 +131,8 @@ uart3_pins_default: uart3_pins_default { pinctrl-single,pins = < - 0x248 (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_rxd.rxd */ - 0x24c (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_txd.txd */ + 0x3f8 (PIN_INPUT_SLEW | MUX_MODE2) /* uart2_ctsn.uart3_rxd */ + 0x3fc (PIN_INPUT_SLEW | MUX_MODE1) /* uart2_rtsn.uart3_txd */ >; }; @@ -455,7 +456,7 @@ mcp_rtc: rtc@6f { compatible = "microchip,mcp7941x"; reg = <0x6f>; - interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_LOW>; /* IRQ_SYS_1N */ + interrupts = <GIC_SPI 2 IRQ_TYPE_EDGE_RISING>; /* IRQ_SYS_1N */ pinctrl-names = "default"; pinctrl-0 = <&mcp79410_pins_default>; @@ -478,7 +479,7 @@ &uart3 { status = "okay"; interrupts-extended = <&crossbar_mpu GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>, - <&dra7_pmx_core 0x248>; + <&dra7_pmx_core 0x3f8>; pinctrl-names = "default"; pinctrl-0 = <&uart3_pins_default>; diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts index e3b08fb959e5..990e8a2100f0 100644 --- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts +++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts @@ -105,6 +105,10 @@ }; internal-regs { + rtc@10300 { + /* No crystal connected to the internal RTC */ + status = "disabled"; + }; serial@12000 { status = "okay"; }; diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index 5332b57b4950..f03a091cd076 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -911,7 +911,7 @@ ti,clock-cycles = <16>; reg = <0x4ae07ddc 0x4>, <0x4ae07de0 0x4>, - <0x4ae06014 0x4>, <0x4a003b20 0x8>, + <0x4ae06014 0x4>, <0x4a003b20 0xc>, <0x4ae0c158 0x4>; reg-names = "setup-address", "control-address", "int-address", "efuse-address", @@ -944,7 +944,7 @@ ti,clock-cycles = <16>; reg = <0x4ae07e34 0x4>, <0x4ae07e24 0x4>, - <0x4ae06010 0x4>, <0x4a0025cc 0x8>, + <0x4ae06010 0x4>, <0x4a0025cc 0xc>, <0x4a002470 0x4>; reg-names = "setup-address", "control-address", "int-address", "efuse-address", @@ -977,7 +977,7 @@ ti,clock-cycles = <16>; reg = <0x4ae07e30 0x4>, <0x4ae07e20 0x4>, - <0x4ae06010 0x4>, <0x4a0025e0 0x8>, + <0x4ae06010 0x4>, <0x4a0025e0 0xc>, <0x4a00246c 0x4>; reg-names = "setup-address", "control-address", "int-address", "efuse-address", @@ -1010,7 +1010,7 @@ ti,clock-cycles = <16>; reg = <0x4ae07de4 0x4>, <0x4ae07de8 0x4>, - <0x4ae06010 0x4>, <0x4a003b08 0x8>, + <0x4ae06010 0x4>, <0x4a003b08 0xc>, <0x4ae0c154 0x4>; reg-names = "setup-address", "control-address", "int-address", "efuse-address", @@ -1203,7 +1203,7 @@ status = "disabled"; }; - rtc@48838000 { + rtc: rtc@48838000 { compatible = "ti,am3352-rtc"; reg = <0x48838000 0x100>; interrupts = <GIC_SPI 217 IRQ_TYPE_LEVEL_HIGH>, diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi index 8de12af7c276..d6b49e5b32e9 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi @@ -9,6 +9,7 @@ #include <dt-bindings/sound/samsung-i2s.h> #include <dt-bindings/input/input.h> +#include <dt-bindings/clock/maxim,max77686.h> #include "exynos4412.dtsi" / { @@ -105,6 +106,8 @@ rtc@10070000 { status = "okay"; + clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>; + clock-names = "rtc", "rtc_src"; }; g2d@10800000 { diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts index 2657e842e5a5..1eca97ee4bd6 100644 --- a/arch/arm/boot/dts/exynos5250-snow.dts +++ b/arch/arm/boot/dts/exynos5250-snow.dts @@ -567,6 +567,7 @@ num-slots = <1>; broken-cd; cap-sdio-irq; + keep-power-in-suspend; card-detect-delay = <200>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <2 3>; diff --git a/arch/arm/boot/dts/exynos5420-trip-points.dtsi b/arch/arm/boot/dts/exynos5420-trip-points.dtsi index 5d31fc140823..2180a0152c9b 100644 --- a/arch/arm/boot/dts/exynos5420-trip-points.dtsi +++ b/arch/arm/boot/dts/exynos5420-trip-points.dtsi @@ -28,7 +28,7 @@ trips { type = "active"; }; cpu-crit-0 { - temperature = <1200000>; /* millicelsius */ + temperature = <120000>; /* millicelsius */ hysteresis = <0>; /* millicelsius */ type = "critical"; }; diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index f67b23f303c3..45317538bbae 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -536,6 +536,7 @@ clock-names = "dp"; phys = <&dp_phy>; phy-names = "dp"; + power-domains = <&disp_pd>; }; mipi_phy: video-phy@10040714 { diff --git a/arch/arm/boot/dts/exynos5440-trip-points.dtsi b/arch/arm/boot/dts/exynos5440-trip-points.dtsi index 48adfa8f4300..356e963edf11 100644 --- a/arch/arm/boot/dts/exynos5440-trip-points.dtsi +++ b/arch/arm/boot/dts/exynos5440-trip-points.dtsi @@ -18,7 +18,7 @@ trips { type = "active"; }; cpu-crit-0 { - temperature = <1050000>; /* millicelsius */ + temperature = <105000>; /* millicelsius */ hysteresis = <0>; /* millicelsius */ type = "critical"; }; diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts index 7e6eef2488e8..82045398bf1f 100644 --- a/arch/arm/boot/dts/imx23-olinuxino.dts +++ b/arch/arm/boot/dts/imx23-olinuxino.dts @@ -12,6 +12,7 @@ */ /dts-v1/; +#include <dt-bindings/gpio/gpio.h> #include "imx23.dtsi" / { @@ -93,6 +94,7 @@ ahb@80080000 { usb0: usb@80080000 { + dr_mode = "host"; vbus-supply = <®_usb0_vbus>; status = "okay"; }; @@ -122,7 +124,7 @@ user { label = "green"; - gpios = <&gpio2 1 1>; + gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>; }; }; }; diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi index e4d3aecc4ed2..677f81d9dcd5 100644 --- a/arch/arm/boot/dts/imx25.dtsi +++ b/arch/arm/boot/dts/imx25.dtsi @@ -428,6 +428,7 @@ pwm4: pwm@53fc8000 { compatible = "fsl,imx25-pwm", "fsl,imx27-pwm"; + #pwm-cells = <2>; reg = <0x53fc8000 0x4000>; clocks = <&clks 108>, <&clks 52>; clock-names = "ipg", "per"; diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi index 25e25f82fbae..4e073e854742 100644 --- a/arch/arm/boot/dts/imx28.dtsi +++ b/arch/arm/boot/dts/imx28.dtsi @@ -913,7 +913,7 @@ 80 81 68 69 70 71 72 73 74 75 76 77>; - interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty", + interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty", "saif0", "saif1", "i2c0", "i2c1", "auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx", "auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx"; diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi index 19cc269a08d4..1ce6133b67f5 100644 --- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi +++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi @@ -31,6 +31,7 @@ regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; gpio = <&gpio4 15 0>; + enable-active-high; }; reg_usb_h1_vbus: regulator@1 { @@ -40,6 +41,7 @@ regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; gpio = <&gpio1 0 0>; + enable-active-high; }; }; diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi index 46b2fed7c319..3b24b12651b2 100644 --- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi +++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi @@ -185,7 +185,6 @@ &i2c3 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c3>; - pinctrl-assert-gpios = <&gpio5 4 GPIO_ACTIVE_HIGH>; status = "okay"; max7310_a: gpio@30 { diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts index a29315833ecd..5c16145920ea 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -498,6 +498,8 @@ DRVDD-supply = <&vmmc2>; IOVDD-supply = <&vio>; DVDD-supply = <&vio>; + + ai3x-micbias-vg = <1>; }; tlv320aic3x_aux: tlv320aic3x@19 { @@ -509,6 +511,8 @@ DRVDD-supply = <&vmmc2>; IOVDD-supply = <&vio>; DVDD-supply = <&vio>; + + ai3x-micbias-vg = <2>; }; tsl2563: tsl2563@29 { diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi index d18a90f5eca3..69a40cfc1f29 100644 --- a/arch/arm/boot/dts/omap3.dtsi +++ b/arch/arm/boot/dts/omap3.dtsi @@ -456,6 +456,7 @@ }; mmu_isp: mmu@480bd400 { + #iommu-cells = <0>; compatible = "ti,omap2-iommu"; reg = <0x480bd400 0x80>; interrupts = <24>; @@ -464,6 +465,7 @@ }; mmu_iva: mmu@5d000000 { + #iommu-cells = <0>; compatible = "ti,omap2-iommu"; reg = <0x5d000000 0x80>; interrupts = <28>; diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi index efe5f737f39b..7d24ae0306b5 100644 --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -128,7 +128,7 @@ * hierarchy. */ ocp { - compatible = "ti,omap4-l3-noc", "simple-bus"; + compatible = "ti,omap5-l3-noc", "simple-bus"; #address-cells = <1>; #size-cells = <1>; ranges; diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts index 74c3212f1f11..824ddab9c3ad 100644 --- a/arch/arm/boot/dts/r8a7791-koelsch.dts +++ b/arch/arm/boot/dts/r8a7791-koelsch.dts @@ -545,7 +545,7 @@ compatible = "adi,adv7511w"; reg = <0x39>; interrupt-parent = <&gpio3>; - interrupts = <29 IRQ_TYPE_EDGE_FALLING>; + interrupts = <29 IRQ_TYPE_LEVEL_LOW>; adi,input-depth = <8>; adi,input-colorspace = "rgb"; diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi index bfd3f1c734b8..2201cd5da3bb 100644 --- a/arch/arm/boot/dts/ste-dbx5x0.dtsi +++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi @@ -1017,23 +1017,6 @@ status = "disabled"; }; - vmmci: regulator-gpio { - compatible = "regulator-gpio"; - - regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <2900000>; - regulator-name = "mmci-reg"; - regulator-type = "voltage"; - - startup-delay-us = <100>; - enable-active-high; - - states = <1800000 0x1 - 2900000 0x0>; - - status = "disabled"; - }; - mcde@a0350000 { compatible = "stericsson,mcde"; reg = <0xa0350000 0x1000>, /* MCDE */ diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi index bf8f0eddc2c0..744c1e3a744d 100644 --- a/arch/arm/boot/dts/ste-href.dtsi +++ b/arch/arm/boot/dts/ste-href.dtsi @@ -111,6 +111,21 @@ pinctrl-1 = <&i2c3_sleep_mode>; }; + vmmci: regulator-gpio { + compatible = "regulator-gpio"; + + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2900000>; + regulator-name = "mmci-reg"; + regulator-type = "voltage"; + + startup-delay-us = <100>; + enable-active-high; + + states = <1800000 0x1 + 2900000 0x0>; + }; + // External Micro SD slot sdi0_per1@80126000 { arm,primecell-periphid = <0x10480180>; diff --git a/arch/arm/boot/dts/ste-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts index 206826a855c0..1bc84ebdccaa 100644 --- a/arch/arm/boot/dts/ste-snowball.dts +++ b/arch/arm/boot/dts/ste-snowball.dts @@ -146,8 +146,21 @@ }; vmmci: regulator-gpio { + compatible = "regulator-gpio"; + gpios = <&gpio7 4 0x4>; enable-gpio = <&gpio6 25 0x4>; + + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2900000>; + regulator-name = "mmci-reg"; + regulator-type = "voltage"; + + startup-delay-us = <100>; + enable-active-high; + + states = <1800000 0x1 + 2900000 0x0>; }; // External Micro SD slot diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index ab86655c1f4b..0ca4a3eaf65d 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -39,11 +39,14 @@ CONFIG_ARCH_HIP04=y CONFIG_ARCH_KEYSTONE=y CONFIG_ARCH_MESON=y CONFIG_ARCH_MXC=y +CONFIG_SOC_IMX50=y CONFIG_SOC_IMX51=y CONFIG_SOC_IMX53=y CONFIG_SOC_IMX6Q=y CONFIG_SOC_IMX6SL=y +CONFIG_SOC_IMX6SX=y CONFIG_SOC_VF610=y +CONFIG_SOC_LS1021A=y CONFIG_ARCH_OMAP3=y CONFIG_ARCH_OMAP4=y CONFIG_SOC_OMAP5=y diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index 9ff7b54b2a83..3743ca221d40 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -393,7 +393,7 @@ CONFIG_TI_EDMA=y CONFIG_DMA_OMAP=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_EXTCON=m -CONFIG_EXTCON_GPIO=m +CONFIG_EXTCON_USB_GPIO=m CONFIG_EXTCON_PALMAS=m CONFIG_TI_EMIF=m CONFIG_PWM=y diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h index 8e3fcb924db6..2ef282f96651 100644 --- a/arch/arm/include/asm/dma-iommu.h +++ b/arch/arm/include/asm/dma-iommu.h @@ -25,7 +25,7 @@ struct dma_iommu_mapping { }; struct dma_iommu_mapping * -arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size); +arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, u64 size); void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping); diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h index 2f7e6ff67d51..0b579b2f4e0e 100644 --- a/arch/arm/include/asm/xen/page.h +++ b/arch/arm/include/asm/xen/page.h @@ -110,5 +110,6 @@ static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn) bool xen_arch_need_swiotlb(struct device *dev, unsigned long pfn, unsigned long mfn); +unsigned long xen_get_swiotlb_free_pages(unsigned int order); #endif /* _ASM_ARM_XEN_PAGE_H */ diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c index 91c7ba182dcd..213919ba326f 100644 --- a/arch/arm/kernel/perf_event_cpu.c +++ b/arch/arm/kernel/perf_event_cpu.c @@ -303,12 +303,17 @@ static int probe_current_pmu(struct arm_pmu *pmu) static int of_pmu_irq_cfg(struct platform_device *pdev) { - int i; + int i, irq; int *irqs = kcalloc(pdev->num_resources, sizeof(*irqs), GFP_KERNEL); if (!irqs) return -ENOMEM; + /* Don't bother with PPIs; they're already affine */ + irq = platform_get_irq(pdev, 0); + if (irq >= 0 && irq_is_percpu(irq)) + return 0; + for (i = 0; i < pdev->num_resources; ++i) { struct device_node *dn; int cpu; @@ -317,7 +322,7 @@ static int of_pmu_irq_cfg(struct platform_device *pdev) i); if (!dn) { pr_warn("Failed to parse %s/interrupt-affinity[%d]\n", - of_node_full_name(dn), i); + of_node_full_name(pdev->dev.of_node), i); break; } diff --git a/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c b/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c index fb8d4a2ad48c..a5edd7d60266 100644 --- a/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c +++ b/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010 Pengutronix, Wolfram Sang <w.sang@pengutronix.de> + * Copyright (C) 2010 Pengutronix, Wolfram Sang <kernel@pengutronix.de> * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License version 2 as published by the diff --git a/arch/arm/mach-omap2/prm-regbits-34xx.h b/arch/arm/mach-omap2/prm-regbits-34xx.h index cbefbd7cfdb5..661d753df584 100644 --- a/arch/arm/mach-omap2/prm-regbits-34xx.h +++ b/arch/arm/mach-omap2/prm-regbits-34xx.h @@ -112,6 +112,7 @@ #define OMAP3430_VC_CMD_ONLP_SHIFT 16 #define OMAP3430_VC_CMD_RET_SHIFT 8 #define OMAP3430_VC_CMD_OFF_SHIFT 0 +#define OMAP3430_SREN_MASK (1 << 4) #define OMAP3430_HSEN_MASK (1 << 3) #define OMAP3430_MCODE_MASK (0x7 << 0) #define OMAP3430_VALID_MASK (1 << 24) diff --git a/arch/arm/mach-omap2/prm-regbits-44xx.h b/arch/arm/mach-omap2/prm-regbits-44xx.h index b1c7a33e00e7..e794828dee55 100644 --- a/arch/arm/mach-omap2/prm-regbits-44xx.h +++ b/arch/arm/mach-omap2/prm-regbits-44xx.h @@ -35,6 +35,7 @@ #define OMAP4430_GLOBAL_WARM_SW_RST_SHIFT 1 #define OMAP4430_GLOBAL_WUEN_MASK (1 << 16) #define OMAP4430_HSMCODE_MASK (0x7 << 0) +#define OMAP4430_SRMODEEN_MASK (1 << 4) #define OMAP4430_HSMODEEN_MASK (1 << 3) #define OMAP4430_HSSCLL_SHIFT 24 #define OMAP4430_ICEPICK_RST_SHIFT 9 diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c index be9ef834fa81..076fd20d7e5a 100644 --- a/arch/arm/mach-omap2/vc.c +++ b/arch/arm/mach-omap2/vc.c @@ -316,7 +316,8 @@ static void __init omap3_vc_init_pmic_signaling(struct voltagedomain *voltdm) * idle. And we can also scale voltages to zero for off-idle. * Note that no actual voltage scaling during off-idle will * happen unless the board specific twl4030 PMIC scripts are - * loaded. + * loaded. See also omap_vc_i2c_init for comments regarding + * erratum i531. */ val = voltdm->read(OMAP3_PRM_VOLTCTRL_OFFSET); if (!(val & OMAP3430_PRM_VOLTCTRL_SEL_OFF)) { @@ -704,9 +705,16 @@ static void __init omap_vc_i2c_init(struct voltagedomain *voltdm) return; } + /* + * Note that for omap3 OMAP3430_SREN_MASK clears SREN to work around + * erratum i531 "Extra Power Consumed When Repeated Start Operation + * Mode Is Enabled on I2C Interface Dedicated for Smart Reflex (I2C4)". + * Otherwise I2C4 eventually leads into about 23mW extra power being + * consumed even during off idle using VMODE. + */ i2c_high_speed = voltdm->pmic->i2c_high_speed; if (i2c_high_speed) - voltdm->rmw(vc->common->i2c_cfg_hsen_mask, + voltdm->rmw(vc->common->i2c_cfg_clear_mask, vc->common->i2c_cfg_hsen_mask, vc->common->i2c_cfg_reg); diff --git a/arch/arm/mach-omap2/vc.h b/arch/arm/mach-omap2/vc.h index cdbdd78e755e..89b83b7ff3ec 100644 --- a/arch/arm/mach-omap2/vc.h +++ b/arch/arm/mach-omap2/vc.h @@ -34,6 +34,7 @@ struct voltagedomain; * @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register * @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register * @i2c_cfg_reg: I2C configuration register offset + * @i2c_cfg_clear_mask: high-speed mode bit clear mask in I2C config register * @i2c_cfg_hsen_mask: high-speed mode bit field mask in I2C config register * @i2c_mcode_mask: MCODE field mask for I2C config register * @@ -52,6 +53,7 @@ struct omap_vc_common { u8 cmd_ret_shift; u8 cmd_off_shift; u8 i2c_cfg_reg; + u8 i2c_cfg_clear_mask; u8 i2c_cfg_hsen_mask; u8 i2c_mcode_mask; }; diff --git a/arch/arm/mach-omap2/vc3xxx_data.c b/arch/arm/mach-omap2/vc3xxx_data.c index 75bc4aa22b3a..71d74c9172c1 100644 --- a/arch/arm/mach-omap2/vc3xxx_data.c +++ b/arch/arm/mach-omap2/vc3xxx_data.c @@ -40,6 +40,7 @@ static struct omap_vc_common omap3_vc_common = { .cmd_onlp_shift = OMAP3430_VC_CMD_ONLP_SHIFT, .cmd_ret_shift = OMAP3430_VC_CMD_RET_SHIFT, .cmd_off_shift = OMAP3430_VC_CMD_OFF_SHIFT, + .i2c_cfg_clear_mask = OMAP3430_SREN_MASK | OMAP3430_HSEN_MASK, .i2c_cfg_hsen_mask = OMAP3430_HSEN_MASK, .i2c_cfg_reg = OMAP3_PRM_VC_I2C_CFG_OFFSET, .i2c_mcode_mask = OMAP3430_MCODE_MASK, diff --git a/arch/arm/mach-omap2/vc44xx_data.c b/arch/arm/mach-omap2/vc44xx_data.c index 085e5d6a04fd..2abd5fa8a697 100644 --- a/arch/arm/mach-omap2/vc44xx_data.c +++ b/arch/arm/mach-omap2/vc44xx_data.c @@ -42,6 +42,7 @@ static const struct omap_vc_common omap4_vc_common = { .cmd_ret_shift = OMAP4430_RET_SHIFT, .cmd_off_shift = OMAP4430_OFF_SHIFT, .i2c_cfg_reg = OMAP4_PRM_VC_CFG_I2C_MODE_OFFSET, + .i2c_cfg_clear_mask = OMAP4430_SRMODEEN_MASK | OMAP4430_HSMODEEN_MASK, .i2c_cfg_hsen_mask = OMAP4430_HSMODEEN_MASK, .i2c_mcode_mask = OMAP4430_HSMCODE_MASK, }; diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 8896e71586f5..f09683687963 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -691,4 +691,13 @@ config SHARPSL_PM_MAX1111 config PXA310_ULPI bool +config PXA_SYSTEMS_CPLDS + tristate "Motherboard cplds" + default ARCH_LUBBOCK || MACH_MAINSTONE + help + This driver supports the Lubbock and Mainstone multifunction chip + found on the pxa25x development platform system (Lubbock) and pxa27x + development platform system (Mainstone). This IO board supports the + interrupts handling, ethernet controller, flash chips, etc ... + endif diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index eb0bf7678a99..4087d334ecdf 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -90,4 +90,5 @@ obj-$(CONFIG_MACH_RAUMFELD_CONNECTOR) += raumfeld.o obj-$(CONFIG_MACH_RAUMFELD_SPEAKER) += raumfeld.o obj-$(CONFIG_MACH_ZIPIT2) += z2.o +obj-$(CONFIG_PXA_SYSTEMS_CPLDS) += pxa_cplds_irqs.o obj-$(CONFIG_TOSA_BT) += tosa-bt.o diff --git a/arch/arm/mach-pxa/include/mach/lubbock.h b/arch/arm/mach-pxa/include/mach/lubbock.h index 958cd6af9384..1eecf794acd2 100644 --- a/arch/arm/mach-pxa/include/mach/lubbock.h +++ b/arch/arm/mach-pxa/include/mach/lubbock.h @@ -37,7 +37,9 @@ #define LUB_GP __LUB_REG(LUBBOCK_FPGA_PHYS + 0x100) /* Board specific IRQs */ -#define LUBBOCK_IRQ(x) (IRQ_BOARD_START + (x)) +#define LUBBOCK_NR_IRQS IRQ_BOARD_START + +#define LUBBOCK_IRQ(x) (LUBBOCK_NR_IRQS + (x)) #define LUBBOCK_SD_IRQ LUBBOCK_IRQ(0) #define LUBBOCK_SA1111_IRQ LUBBOCK_IRQ(1) #define LUBBOCK_USB_IRQ LUBBOCK_IRQ(2) /* usb connect */ @@ -47,8 +49,7 @@ #define LUBBOCK_USB_DISC_IRQ LUBBOCK_IRQ(6) /* usb disconnect */ #define LUBBOCK_LAST_IRQ LUBBOCK_IRQ(6) -#define LUBBOCK_SA1111_IRQ_BASE (IRQ_BOARD_START + 16) -#define LUBBOCK_NR_IRQS (IRQ_BOARD_START + 16 + 55) +#define LUBBOCK_SA1111_IRQ_BASE (LUBBOCK_NR_IRQS + 32) #ifndef __ASSEMBLY__ extern void lubbock_set_misc_wr(unsigned int mask, unsigned int set); diff --git a/arch/arm/mach-pxa/include/mach/mainstone.h b/arch/arm/mach-pxa/include/mach/mainstone.h index 1bfc4e822a41..e82a7d31104e 100644 --- a/arch/arm/mach-pxa/include/mach/mainstone.h +++ b/arch/arm/mach-pxa/include/mach/mainstone.h @@ -120,7 +120,9 @@ #define MST_PCMCIA_PWR_VCC_50 0x4 /* voltage VCC = 5.0V */ /* board specific IRQs */ -#define MAINSTONE_IRQ(x) (IRQ_BOARD_START + (x)) +#define MAINSTONE_NR_IRQS IRQ_BOARD_START + +#define MAINSTONE_IRQ(x) (MAINSTONE_NR_IRQS + (x)) #define MAINSTONE_MMC_IRQ MAINSTONE_IRQ(0) #define MAINSTONE_USIM_IRQ MAINSTONE_IRQ(1) #define MAINSTONE_USBC_IRQ MAINSTONE_IRQ(2) @@ -136,6 +138,4 @@ #define MAINSTONE_S1_STSCHG_IRQ MAINSTONE_IRQ(14) #define MAINSTONE_S1_IRQ MAINSTONE_IRQ(15) -#define MAINSTONE_NR_IRQS (IRQ_BOARD_START + 16) - #endif diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index d8a1be619f21..4ac9ab80d24b 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -12,6 +12,7 @@ * published by the Free Software Foundation. */ #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -123,84 +124,6 @@ void lubbock_set_misc_wr(unsigned int mask, unsigned int set) } EXPORT_SYMBOL(lubbock_set_misc_wr); -static unsigned long lubbock_irq_enabled; - -static void lubbock_mask_irq(struct irq_data *d) -{ - int lubbock_irq = (d->irq - LUBBOCK_IRQ(0)); - LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq)); -} - -static void lubbock_unmask_irq(struct irq_data *d) -{ - int lubbock_irq = (d->irq - LUBBOCK_IRQ(0)); - /* the irq can be acknowledged only if deasserted, so it's done here */ - LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq); - LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq)); -} - -static struct irq_chip lubbock_irq_chip = { - .name = "FPGA", - .irq_ack = lubbock_mask_irq, - .irq_mask = lubbock_mask_irq, - .irq_unmask = lubbock_unmask_irq, -}; - -static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; - do { - /* clear our parent irq */ - desc->irq_data.chip->irq_ack(&desc->irq_data); - if (likely(pending)) { - irq = LUBBOCK_IRQ(0) + __ffs(pending); - generic_handle_irq(irq); - } - pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; - } while (pending); -} - -static void __init lubbock_init_irq(void) -{ - int irq; - - pxa25x_init_irq(); - - /* setup extra lubbock irqs */ - for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) { - irq_set_chip_and_handler(irq, &lubbock_irq_chip, - handle_level_irq); - set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); - } - - irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler); - irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING); -} - -#ifdef CONFIG_PM - -static void lubbock_irq_resume(void) -{ - LUB_IRQ_MASK_EN = lubbock_irq_enabled; -} - -static struct syscore_ops lubbock_irq_syscore_ops = { - .resume = lubbock_irq_resume, -}; - -static int __init lubbock_irq_device_init(void) -{ - if (machine_is_lubbock()) { - register_syscore_ops(&lubbock_irq_syscore_ops); - return 0; - } - return -ENODEV; -} - -device_initcall(lubbock_irq_device_init); - -#endif - static int lubbock_udc_is_connected(void) { return (LUB_MISC_RD & (1 << 9)) == 0; @@ -383,11 +306,38 @@ static struct platform_device lubbock_flash_device[2] = { }, }; +static struct resource lubbock_cplds_resources[] = { + [0] = { + .start = LUBBOCK_FPGA_PHYS + 0xc0, + .end = LUBBOCK_FPGA_PHYS + 0xe0 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PXA_GPIO_TO_IRQ(0), + .end = PXA_GPIO_TO_IRQ(0), + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, + }, + [2] = { + .start = LUBBOCK_IRQ(0), + .end = LUBBOCK_IRQ(6), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device lubbock_cplds_device = { + .name = "pxa_cplds_irqs", + .id = -1, + .resource = &lubbock_cplds_resources[0], + .num_resources = 3, +}; + + static struct platform_device *devices[] __initdata = { &sa1111_device, &smc91x_device, &lubbock_flash_device[0], &lubbock_flash_device[1], + &lubbock_cplds_device, }; static struct pxafb_mode_info sharp_lm8v31_mode = { @@ -648,7 +598,7 @@ MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)") /* Maintainer: MontaVista Software Inc. */ .map_io = lubbock_map_io, .nr_irqs = LUBBOCK_NR_IRQS, - .init_irq = lubbock_init_irq, + .init_irq = pxa25x_init_irq, .handle_irq = pxa25x_handle_irq, .init_time = pxa_timer_init, .init_machine = lubbock_init, diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 78b84c0dfc79..2c0658cf6be2 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -13,6 +13,7 @@ * published by the Free Software Foundation. */ #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/syscore_ops.h> @@ -122,92 +123,6 @@ static unsigned long mainstone_pin_config[] = { GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, }; -static unsigned long mainstone_irq_enabled; - -static void mainstone_mask_irq(struct irq_data *d) -{ - int mainstone_irq = (d->irq - MAINSTONE_IRQ(0)); - MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq)); -} - -static void mainstone_unmask_irq(struct irq_data *d) -{ - int mainstone_irq = (d->irq - MAINSTONE_IRQ(0)); - /* the irq can be acknowledged only if deasserted, so it's done here */ - MST_INTSETCLR &= ~(1 << mainstone_irq); - MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq)); -} - -static struct irq_chip mainstone_irq_chip = { - .name = "FPGA", - .irq_ack = mainstone_mask_irq, - .irq_mask = mainstone_mask_irq, - .irq_unmask = mainstone_unmask_irq, -}; - -static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled; - do { - /* clear useless edge notification */ - desc->irq_data.chip->irq_ack(&desc->irq_data); - if (likely(pending)) { - irq = MAINSTONE_IRQ(0) + __ffs(pending); - generic_handle_irq(irq); - } - pending = MST_INTSETCLR & mainstone_irq_enabled; - } while (pending); -} - -static void __init mainstone_init_irq(void) -{ - int irq; - - pxa27x_init_irq(); - - /* setup extra Mainstone irqs */ - for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) { - irq_set_chip_and_handler(irq, &mainstone_irq_chip, - handle_level_irq); - if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14)) - set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN); - else - set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); - } - set_irq_flags(MAINSTONE_IRQ(8), 0); - set_irq_flags(MAINSTONE_IRQ(12), 0); - - MST_INTMSKENA = 0; - MST_INTSETCLR = 0; - - irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler); - irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING); -} - -#ifdef CONFIG_PM - -static void mainstone_irq_resume(void) -{ - MST_INTMSKENA = mainstone_irq_enabled; -} - -static struct syscore_ops mainstone_irq_syscore_ops = { - .resume = mainstone_irq_resume, -}; - -static int __init mainstone_irq_device_init(void) -{ - if (machine_is_mainstone()) - register_syscore_ops(&mainstone_irq_syscore_ops); - - return 0; -} - -device_initcall(mainstone_irq_device_init); - -#endif - - static struct resource smc91x_resources[] = { [0] = { .start = (MST_ETH_PHYS + 0x300), @@ -487,11 +402,37 @@ static struct platform_device mst_gpio_keys_device = { }, }; +static struct resource mst_cplds_resources[] = { + [0] = { + .start = MST_FPGA_PHYS + 0xc0, + .end = MST_FPGA_PHYS + 0xe0 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PXA_GPIO_TO_IRQ(0), + .end = PXA_GPIO_TO_IRQ(0), + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, + }, + [2] = { + .start = MAINSTONE_IRQ(0), + .end = MAINSTONE_IRQ(15), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device mst_cplds_device = { + .name = "pxa_cplds_irqs", + .id = -1, + .resource = &mst_cplds_resources[0], + .num_resources = 3, +}; + static struct platform_device *platform_devices[] __initdata = { &smc91x_device, &mst_flash_device[0], &mst_flash_device[1], &mst_gpio_keys_device, + &mst_cplds_device, }; static struct pxaohci_platform_data mainstone_ohci_platform_data = { @@ -718,7 +659,7 @@ MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)") .atag_offset = 0x100, /* BLOB boot parameter setting */ .map_io = mainstone_map_io, .nr_irqs = MAINSTONE_NR_IRQS, - .init_irq = mainstone_init_irq, + .init_irq = pxa27x_init_irq, .handle_irq = pxa27x_handle_irq, .init_time = pxa_timer_init, .init_machine = mainstone_init, diff --git a/arch/arm/mach-pxa/pxa_cplds_irqs.c b/arch/arm/mach-pxa/pxa_cplds_irqs.c new file mode 100644 index 000000000000..f1aeb54fabe3 --- /dev/null +++ b/arch/arm/mach-pxa/pxa_cplds_irqs.c @@ -0,0 +1,200 @@ +/* + * Intel Reference Systems cplds + * + * Copyright (C) 2014 Robert Jarzmik + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Cplds motherboard driver, supporting lubbock and mainstone SoC board. + */ + +#include <linux/bitops.h> +#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/mfd/core.h> +#include <linux/module.h> +#include <linux/of_platform.h> + +#define FPGA_IRQ_MASK_EN 0x0 +#define FPGA_IRQ_SET_CLR 0x10 + +#define CPLDS_NB_IRQ 32 + +struct cplds { + void __iomem *base; + int irq; + unsigned int irq_mask; + struct gpio_desc *gpio0; + struct irq_domain *irqdomain; +}; + +static irqreturn_t cplds_irq_handler(int in_irq, void *d) +{ + struct cplds *fpga = d; + unsigned long pending; + unsigned int bit; + + pending = readl(fpga->base + FPGA_IRQ_SET_CLR) & fpga->irq_mask; + for_each_set_bit(bit, &pending, CPLDS_NB_IRQ) + generic_handle_irq(irq_find_mapping(fpga->irqdomain, bit)); + + return IRQ_HANDLED; +} + +static void cplds_irq_mask_ack(struct irq_data *d) +{ + struct cplds *fpga = irq_data_get_irq_chip_data(d); + unsigned int cplds_irq = irqd_to_hwirq(d); + unsigned int set, bit = BIT(cplds_irq); + + fpga->irq_mask &= ~bit; + writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN); + set = readl(fpga->base + FPGA_IRQ_SET_CLR); + writel(set & ~bit, fpga->base + FPGA_IRQ_SET_CLR); +} + +static void cplds_irq_unmask(struct irq_data *d) +{ + struct cplds *fpga = irq_data_get_irq_chip_data(d); + unsigned int cplds_irq = irqd_to_hwirq(d); + unsigned int bit = BIT(cplds_irq); + + fpga->irq_mask |= bit; + writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN); +} + +static struct irq_chip cplds_irq_chip = { + .name = "pxa_cplds", + .irq_mask_ack = cplds_irq_mask_ack, + .irq_unmask = cplds_irq_unmask, + .flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE, +}; + +static int cplds_irq_domain_map(struct irq_domain *d, unsigned int irq, + irq_hw_number_t hwirq) +{ + struct cplds *fpga = d->host_data; + + irq_set_chip_and_handler(irq, &cplds_irq_chip, handle_level_irq); + irq_set_chip_data(irq, fpga); + + return 0; +} + +static const struct irq_domain_ops cplds_irq_domain_ops = { + .xlate = irq_domain_xlate_twocell, + .map = cplds_irq_domain_map, +}; + +static int cplds_resume(struct platform_device *pdev) +{ + struct cplds *fpga = platform_get_drvdata(pdev); + + writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN); + + return 0; +} + +static int cplds_probe(struct platform_device *pdev) +{ + struct resource *res; + struct cplds *fpga; + int ret; + unsigned int base_irq = 0; + unsigned long irqflags = 0; + + fpga = devm_kzalloc(&pdev->dev, sizeof(*fpga), GFP_KERNEL); + if (!fpga) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (res) { + fpga->irq = (unsigned int)res->start; + irqflags = res->flags; + } + if (!fpga->irq) + return -ENODEV; + + base_irq = platform_get_irq(pdev, 1); + if (base_irq < 0) + base_irq = 0; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + fpga->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(fpga->base)) + return PTR_ERR(fpga->base); + + platform_set_drvdata(pdev, fpga); + + writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN); + writel(0, fpga->base + FPGA_IRQ_SET_CLR); + + ret = devm_request_irq(&pdev->dev, fpga->irq, cplds_irq_handler, + irqflags, dev_name(&pdev->dev), fpga); + if (ret == -ENOSYS) + return -EPROBE_DEFER; + + if (ret) { + dev_err(&pdev->dev, "couldn't request main irq%d: %d\n", + fpga->irq, ret); + return ret; + } + + irq_set_irq_wake(fpga->irq, 1); + fpga->irqdomain = irq_domain_add_linear(pdev->dev.of_node, + CPLDS_NB_IRQ, + &cplds_irq_domain_ops, fpga); + if (!fpga->irqdomain) + return -ENODEV; + + if (base_irq) { + ret = irq_create_strict_mappings(fpga->irqdomain, base_irq, 0, + CPLDS_NB_IRQ); + if (ret) { + dev_err(&pdev->dev, "couldn't create the irq mapping %d..%d\n", + base_irq, base_irq + CPLDS_NB_IRQ); + return ret; + } + } + + return 0; +} + +static int cplds_remove(struct platform_device *pdev) +{ + struct cplds *fpga = platform_get_drvdata(pdev); + + irq_set_chip_and_handler(fpga->irq, NULL, NULL); + + return 0; +} + +static const struct of_device_id cplds_id_table[] = { + { .compatible = "intel,lubbock-cplds-irqs", }, + { .compatible = "intel,mainstone-cplds-irqs", }, + { } +}; +MODULE_DEVICE_TABLE(of, cplds_id_table); + +static struct platform_driver cplds_driver = { + .driver = { + .name = "pxa_cplds_irqs", + .of_match_table = of_match_ptr(cplds_id_table), + }, + .probe = cplds_probe, + .remove = cplds_remove, + .resume = cplds_resume, +}; + +module_platform_driver(cplds_driver); + +MODULE_DESCRIPTION("PXA Cplds interrupts driver"); +MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>"); +MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c index b07d88602073..22812fe06460 100644 --- a/arch/arm/mach-rockchip/pm.c +++ b/arch/arm/mach-rockchip/pm.c @@ -44,9 +44,11 @@ static void __iomem *rk3288_bootram_base; static phys_addr_t rk3288_bootram_phy; static struct regmap *pmu_regmap; +static struct regmap *grf_regmap; static struct regmap *sgrf_regmap; static u32 rk3288_pmu_pwr_mode_con; +static u32 rk3288_grf_soc_con0; static u32 rk3288_sgrf_soc_con0; static inline u32 rk3288_l2_config(void) @@ -70,12 +72,26 @@ static void rk3288_slp_mode_set(int level) { u32 mode_set, mode_set1; + regmap_read(grf_regmap, RK3288_GRF_SOC_CON0, &rk3288_grf_soc_con0); + regmap_read(sgrf_regmap, RK3288_SGRF_SOC_CON0, &rk3288_sgrf_soc_con0); regmap_read(pmu_regmap, RK3288_PMU_PWRMODE_CON, &rk3288_pmu_pwr_mode_con); /* + * We need set this bit GRF_FORCE_JTAG here, for the debug module, + * otherwise, it may become inaccessible after resume. + * This creates a potential security issue, as the sdmmc pins may + * accept jtag data for a short time during resume if no card is + * inserted. + * But this is of course also true for the regular boot, before we + * turn of the jtag/sdmmc autodetect. + */ + regmap_write(grf_regmap, RK3288_GRF_SOC_CON0, GRF_FORCE_JTAG | + GRF_FORCE_JTAG_WRITE); + + /* * SGRF_FAST_BOOT_EN - system to boot from FAST_BOOT_ADDR * PCLK_WDT_GATE - disable WDT during suspend. */ @@ -83,6 +99,13 @@ static void rk3288_slp_mode_set(int level) SGRF_PCLK_WDT_GATE | SGRF_FAST_BOOT_EN | SGRF_PCLK_WDT_GATE_WRITE | SGRF_FAST_BOOT_EN_WRITE); + /* + * The dapswjdp can not auto reset before resume, that cause it may + * access some illegal address during resume. Let's disable it before + * suspend, and the MASKROM will enable it back. + */ + regmap_write(sgrf_regmap, RK3288_SGRF_CPU_CON0, SGRF_DAPDEVICEEN_WRITE); + /* booting address of resuming system is from this register value */ regmap_write(sgrf_regmap, RK3288_SGRF_FAST_BOOT_ADDR, rk3288_bootram_phy); @@ -128,6 +151,9 @@ static void rk3288_slp_mode_set_resume(void) regmap_write(sgrf_regmap, RK3288_SGRF_SOC_CON0, rk3288_sgrf_soc_con0 | SGRF_PCLK_WDT_GATE_WRITE | SGRF_FAST_BOOT_EN_WRITE); + + regmap_write(grf_regmap, RK3288_GRF_SOC_CON0, rk3288_grf_soc_con0 | + GRF_FORCE_JTAG_WRITE); } static int rockchip_lpmode_enter(unsigned long arg) @@ -186,6 +212,13 @@ static int rk3288_suspend_init(struct device_node *np) return PTR_ERR(pmu_regmap); } + grf_regmap = syscon_regmap_lookup_by_compatible( + "rockchip,rk3288-grf"); + if (IS_ERR(grf_regmap)) { + pr_err("%s: could not find grf regmap\n", __func__); + return PTR_ERR(pmu_regmap); + } + sram_np = of_find_compatible_node(NULL, NULL, "rockchip,rk3288-pmu-sram"); if (!sram_np) { diff --git a/arch/arm/mach-rockchip/pm.h b/arch/arm/mach-rockchip/pm.h index 03ff31d8282d..f8a747bc1437 100644 --- a/arch/arm/mach-rockchip/pm.h +++ b/arch/arm/mach-rockchip/pm.h @@ -48,6 +48,10 @@ static inline void rockchip_suspend_init(void) #define RK3288_PMU_WAKEUP_RST_CLR_CNT 0x44 #define RK3288_PMU_PWRMODE_CON1 0x90 +#define RK3288_GRF_SOC_CON0 0x244 +#define GRF_FORCE_JTAG BIT(12) +#define GRF_FORCE_JTAG_WRITE BIT(28) + #define RK3288_SGRF_SOC_CON0 (0x0000) #define RK3288_SGRF_FAST_BOOT_ADDR (0x0120) #define SGRF_PCLK_WDT_GATE BIT(6) @@ -55,6 +59,10 @@ static inline void rockchip_suspend_init(void) #define SGRF_FAST_BOOT_EN BIT(8) #define SGRF_FAST_BOOT_EN_WRITE BIT(24) +#define RK3288_SGRF_CPU_CON0 (0x40) +#define SGRF_DAPDEVICEEN BIT(0) +#define SGRF_DAPDEVICEEN_WRITE BIT(16) + #define RK3288_CRU_MODE_CON 0x50 #define RK3288_CRU_SEL0_CON 0x60 #define RK3288_CRU_SEL1_CON 0x64 diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c index d360ec044b66..b6cf3b449428 100644 --- a/arch/arm/mach-rockchip/rockchip.c +++ b/arch/arm/mach-rockchip/rockchip.c @@ -30,11 +30,30 @@ #include "pm.h" #define RK3288_GRF_SOC_CON0 0x244 +#define RK3288_TIMER6_7_PHYS 0xff810000 static void __init rockchip_timer_init(void) { if (of_machine_is_compatible("rockchip,rk3288")) { struct regmap *grf; + void __iomem *reg_base; + + /* + * Most/all uboot versions for rk3288 don't enable timer7 + * which is needed for the architected timer to work. + * So make sure it is running during early boot. + */ + reg_base = ioremap(RK3288_TIMER6_7_PHYS, SZ_16K); + if (reg_base) { + writel(0, reg_base + 0x30); + writel(0xffffffff, reg_base + 0x20); + writel(0xffffffff, reg_base + 0x24); + writel(1, reg_base + 0x30); + dsb(); + iounmap(reg_base); + } else { + pr_err("rockchip: could not map timer7 registers\n"); + } /* * Disable auto jtag/sdmmc switching that causes issues diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 09c5fe3d30c2..7e7583ddd607 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -1878,7 +1878,7 @@ struct dma_map_ops iommu_coherent_ops = { * arm_iommu_attach_device function. */ struct dma_iommu_mapping * -arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size) +arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, u64 size) { unsigned int bits = size >> PAGE_SHIFT; unsigned int bitmap_size = BITS_TO_LONGS(bits) * sizeof(long); @@ -1886,6 +1886,10 @@ arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size) int extensions = 1; int err = -ENOMEM; + /* currently only 32-bit DMA address space is supported */ + if (size > DMA_BIT_MASK(32) + 1) + return ERR_PTR(-ERANGE); + if (!bitmap_size) return ERR_PTR(-EINVAL); @@ -2057,13 +2061,6 @@ static bool arm_setup_iommu_dma_ops(struct device *dev, u64 dma_base, u64 size, if (!iommu) return false; - /* - * currently arm_iommu_create_mapping() takes a max of size_t - * for size param. So check this limit for now. - */ - if (size > SIZE_MAX) - return false; - mapping = arm_iommu_create_mapping(dev->bus, dma_base, size); if (IS_ERR(mapping)) { pr_warn("Failed to create %llu-byte IOMMU mapping for device %s\n", diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index aa0519eed698..774ef1323554 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -22,8 +22,6 @@ * * These are the low level assembler for performing cache and TLB * functions on the arm1020. - * - * CONFIG_CPU_ARM1020_CPU_IDLE -> nohlt */ #include <linux/linkage.h> #include <linux/init.h> diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S index bff4c7f70fd6..ae3c27b71594 100644 --- a/arch/arm/mm/proc-arm1020e.S +++ b/arch/arm/mm/proc-arm1020e.S @@ -22,8 +22,6 @@ * * These are the low level assembler for performing cache and TLB * functions on the arm1020e. - * - * CONFIG_CPU_ARM1020_CPU_IDLE -> nohlt */ #include <linux/linkage.h> #include <linux/init.h> diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index ede8c54ab4aa..32a47cc19076 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -441,9 +441,6 @@ ENTRY(cpu_arm925_set_pte_ext) .type __arm925_setup, #function __arm925_setup: mov r0, #0 -#if defined(CONFIG_CPU_ICACHE_STREAMING_DISABLE) - orr r0,r0,#1 << 7 -#endif /* Transparent on, D-cache clean & flush mode. See NOTE2 above */ orr r0,r0,#1 << 1 @ transparent mode on diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index e494d6d6acbe..92e08bf37aad 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -602,7 +602,6 @@ __\name\()_proc_info: PMD_SECT_AP_WRITE | \ PMD_SECT_AP_READ initfn __feroceon_setup, __\name\()_proc_info - .long __feroceon_setup .long cpu_arch_name .long cpu_elf_name .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index b5f470ddab6d..4550d247e308 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -54,6 +54,7 @@ #define SEEN_DATA (1 << (BPF_MEMWORDS + 3)) #define FLAG_NEED_X_RESET (1 << 0) +#define FLAG_IMM_OVERFLOW (1 << 1) struct jit_ctx { const struct bpf_prog *skf; @@ -293,6 +294,15 @@ static u16 imm_offset(u32 k, struct jit_ctx *ctx) /* PC in ARM mode == address of the instruction + 8 */ imm = offset - (8 + ctx->idx * 4); + if (imm & ~0xfff) { + /* + * literal pool is too far, signal it into flags. we + * can only detect it on the second pass unfortunately. + */ + ctx->flags |= FLAG_IMM_OVERFLOW; + return 0; + } + return imm; } @@ -449,10 +459,21 @@ static inline void emit_udiv(u8 rd, u8 rm, u8 rn, struct jit_ctx *ctx) return; } #endif - if (rm != ARM_R0) - emit(ARM_MOV_R(ARM_R0, rm), ctx); + + /* + * For BPF_ALU | BPF_DIV | BPF_K instructions, rm is ARM_R4 + * (r_A) and rn is ARM_R0 (r_scratch) so load rn first into + * ARM_R1 to avoid accidentally overwriting ARM_R0 with rm + * before using it as a source for ARM_R1. + * + * For BPF_ALU | BPF_DIV | BPF_X rm is ARM_R4 (r_A) and rn is + * ARM_R5 (r_X) so there is no particular register overlap + * issues. + */ if (rn != ARM_R1) emit(ARM_MOV_R(ARM_R1, rn), ctx); + if (rm != ARM_R0) + emit(ARM_MOV_R(ARM_R0, rm), ctx); ctx->seen |= SEEN_CALL; emit_mov_i(ARM_R3, (u32)jit_udiv, ctx); @@ -865,6 +886,14 @@ b_epilogue: default: return -1; } + + if (ctx->flags & FLAG_IMM_OVERFLOW) + /* + * this instruction generated an overflow when + * trying to access the literal pool, so + * delegate this filter to the kernel interpreter. + */ + return -1; } /* compute offsets only during the first pass */ @@ -927,7 +956,14 @@ void bpf_jit_compile(struct bpf_prog *fp) ctx.idx = 0; build_prologue(&ctx); - build_body(&ctx); + if (build_body(&ctx) < 0) { +#if __LINUX_ARM_ARCH__ < 7 + if (ctx.imm_count) + kfree(ctx.imms); +#endif + bpf_jit_binary_free(header); + goto out; + } build_epilogue(&ctx); flush_icache_range((u32)ctx.target, (u32)(ctx.target + ctx.idx)); diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index 793551d15f1d..498325074a06 100644 --- a/arch/arm/xen/mm.c +++ b/arch/arm/xen/mm.c @@ -4,6 +4,7 @@ #include <linux/gfp.h> #include <linux/highmem.h> #include <linux/export.h> +#include <linux/memblock.h> #include <linux/of_address.h> #include <linux/slab.h> #include <linux/types.h> @@ -21,6 +22,20 @@ #include <asm/xen/hypercall.h> #include <asm/xen/interface.h> +unsigned long xen_get_swiotlb_free_pages(unsigned int order) +{ + struct memblock_region *reg; + gfp_t flags = __GFP_NOWARN; + + for_each_memblock(memory, reg) { + if (reg->base < (phys_addr_t)0xffffffff) { + flags |= __GFP_DMA; + break; + } + } + return __get_free_pages(flags, order); +} + enum dma_cache_op { DMA_UNMAP, DMA_MAP, |