Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "New core SoC-specific changes.

  New platforms:
   * Introduction of a vendor, Hisilicon, and one of their SoCs with
     some random numerical product name.
   * Introduction of EFM32, embedded platform from Silicon Labs (ARMv7m,
     i.e. !MMU).
   * Marvell Berlin series of SoCs, which include the one in Chromecast.
   * MOXA platform support, ARM9-based platform used mostly in
     industrial products
   * Support for Freescale's i.MX50 SoC.

  Other work:
   * Renesas work for new platforms and drivers, and conversion over to
     more multiplatform-friendly device registration schemes.
   * SMP support for Allwinner sunxi platforms.
   * ... plus a bunch of other stuff across various platforms"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (201 commits)
  ARM: tegra: fix tegra_powergate_sequence_power_up() inline
  ARM: msm_defconfig: Update for multi-platform
  ARM: msm: Move MSM's DT based hardware to multi-platform support
  ARM: msm: Only build timer.c if required
  ARM: msm: Only build clock.c on proc_comm based platforms
  ARM: ux500: Enable system suspend with WFI support
  ARM: ux500: turn on PRINTK_TIME in u8500_defconfig
  ARM: shmobile: r8a7790: Fix I2C controller names
  ARM: msm: Simplify ARCH_MSM_DT config
  ARM: msm: Add support for MSM8974 SoC
  ARM: sunxi: select ARM_PSCI
  MAINTAINERS: Update Allwinner sunXi maintainer files
  ARM: sunxi: Select RESET_CONTROLLER
  ARM: imx: improve the comment of CCM lpm SW workaround
  ARM: imx: improve status check of clock gate
  ARM: imx: add necessary interface for pfd
  ARM: imx_v6_v7_defconfig: Select CONFIG_REGULATOR_PFUZE100
  ARM: imx_v6_v7_defconfig: Select MX35 and MX50 device tree support
  ARM: imx: Add cpu frequency scaling support
  ARM i.MX35: Add devicetree support.
  ...

7 files changed, 333 insertions, 2 deletions

diff --git a/drivers/Makefile b/drivers/Makefile
index 3cc8214f9b26..8e3b8b06c0b2 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -118,7 +118,7 @@ obj-$(CONFIG_SGI_SN)		+= sn/
 obj-y                           += firmware/
 obj-$(CONFIG_CRYPTO)            += crypto/
 obj-$(CONFIG_SUPERH)            += sh/
-obj-$(CONFIG_ARCH_SHMOBILE)     += sh/
+obj-$(CONFIG_ARCH_SHMOBILE_LEGACY)      += sh/
 ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
 obj-y                           += clocksource/
 endif
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 358358d87b6d..c7ca50a9c232 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -26,7 +26,7 @@ obj-$(CONFIG_SUN5I_HSTIMER)	+= timer-sun5i.o
 obj-$(CONFIG_ARCH_TEGRA)        += tegra20_timer.o
 obj-$(CONFIG_VT8500_TIMER)      += vt8500_timer.o
 obj-$(CONFIG_ARCH_NSPIRE)       += zevio-timer.o
-obj-$(CONFIG_ARCH_BCM)          += bcm_kona_timer.o
+obj-$(CONFIG_ARCH_BCM_MOBILE)   += bcm_kona_timer.o
 obj-$(CONFIG_CADENCE_TTC_TIMER) += cadence_ttc_timer.o
 obj-$(CONFIG_CLKSRC_EFM32)      += time-efm32.o
 obj-$(CONFIG_CLKSRC_EXYNOS_MCT) += exynos_mct.o
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 3792a1aa52b8..940638ddc982 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -30,6 +30,10 @@ config ARM_VIC_NR
           The maximum number of VICs available in the system, for
           power management.
 
+config DW_APB_ICTL
+        bool
+        select IRQ_DOMAIN
+
 config IMGPDC_IRQ
         bool
         select GENERIC_IRQ_CHIP
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index c60b9010b152..6427323af4c3 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_ARCH_MMP)			+= irq-mmp.o
 obj-$(CONFIG_ARCH_MVEBU)                += irq-armada-370-xp.o
 obj-$(CONFIG_ARCH_MXS)                  += irq-mxs.o
 obj-$(CONFIG_ARCH_S3C24XX)              += irq-s3c24xx.o
+obj-$(CONFIG_DW_APB_ICTL)               += irq-dw-apb-ictl.o
 obj-$(CONFIG_METAG)                     += irq-metag-ext.o
 obj-$(CONFIG_METAG_PERFCOUNTER_IRQS)    += irq-metag.o
 obj-$(CONFIG_ARCH_MOXART)               += irq-moxart.o
diff --git a/drivers/irqchip/irq-dw-apb-ictl.c b/drivers/irqchip/irq-dw-apb-ictl.c
new file mode 100644
index 000000000000..31e231e1f566
--- /dev/null
+++ b/drivers/irqchip/irq-dw-apb-ictl.c
@@ -0,0 +1,150 @@
+/*
+ * Synopsys DW APB ICTL irqchip driver.
+ *
+ * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+ *
+ * based on GPL'ed 2.6 kernel sources
+ *  (c) Marvell International Ltd.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#include "irqchip.h"
+
+#define APB_INT_ENABLE_L        0x00
+#define APB_INT_ENABLE_H        0x04
+#define APB_INT_MASK_L          0x08
+#define APB_INT_MASK_H          0x0c
+#define APB_INT_FINALSTATUS_L   0x30
+#define APB_INT_FINALSTATUS_H   0x34
+
+static void dw_apb_ictl_handler(unsigned int irq, struct irq_desc *desc)
+{
+        struct irq_chip *chip = irq_get_chip(irq);
+        struct irq_chip_generic *gc = irq_get_handler_data(irq);
+        struct irq_domain *d = gc->private;
+        u32 stat;
+        int n;
+
+        chained_irq_enter(chip, desc);
+
+        for (n = 0; n < gc->num_ct; n++) {
+                stat = readl_relaxed(gc->reg_base +
+                                     APB_INT_FINALSTATUS_L + 4 * n);
+                while (stat) {
+                        u32 hwirq = ffs(stat) - 1;
+                        generic_handle_irq(irq_find_mapping(d,
+                                            gc->irq_base + hwirq + 32 * n));
+                        stat &= ~(1 << hwirq);
+                }
+        }
+
+        chained_irq_exit(chip, desc);
+}
+
+static int __init dw_apb_ictl_init(struct device_node *np,
+                                   struct device_node *parent)
+{
+        unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
+        struct resource r;
+        struct irq_domain *domain;
+        struct irq_chip_generic *gc;
+        void __iomem *iobase;
+        int ret, nrirqs, irq;
+        u32 reg;
+
+        /* Map the parent interrupt for the chained handler */
+        irq = irq_of_parse_and_map(np, 0);
+        if (irq <= 0) {
+                pr_err("%s: unable to parse irq\n", np->full_name);
+                return -EINVAL;
+        }
+
+        ret = of_address_to_resource(np, 0, &r);
+        if (ret) {
+                pr_err("%s: unable to get resource\n", np->full_name);
+                return ret;
+        }
+
+        if (!request_mem_region(r.start, resource_size(&r), np->full_name)) {
+                pr_err("%s: unable to request mem region\n", np->full_name);
+                return -ENOMEM;
+        }
+
+        iobase = ioremap(r.start, resource_size(&r));
+        if (!iobase) {
+                pr_err("%s: unable to map resource\n", np->full_name);
+                ret = -ENOMEM;
+                goto err_release;
+        }
+
+        /*
+         * DW IP can be configured to allow 2-64 irqs. We can determine
+         * the number of irqs supported by writing into enable register
+         * and look for bits not set, as corresponding flip-flops will
+         * have been removed by sythesis tool.
+         */
+
+        /* mask and enable all interrupts */
+        writel(~0, iobase + APB_INT_MASK_L);
+        writel(~0, iobase + APB_INT_MASK_H);
+        writel(~0, iobase + APB_INT_ENABLE_L);
+        writel(~0, iobase + APB_INT_ENABLE_H);
+
+        reg = readl(iobase + APB_INT_ENABLE_H);
+        if (reg)
+                nrirqs = 32 + fls(reg);
+        else
+                nrirqs = fls(readl(iobase + APB_INT_ENABLE_L));
+
+        domain = irq_domain_add_linear(np, nrirqs,
+                                       &irq_generic_chip_ops, NULL);
+        if (!domain) {
+                pr_err("%s: unable to add irq domain\n", np->full_name);
+                ret = -ENOMEM;
+                goto err_unmap;
+        }
+
+        ret = irq_alloc_domain_generic_chips(domain, 32, (nrirqs > 32) ? 2 : 1,
+                                             np->name, handle_level_irq, clr, 0,
+                                             IRQ_GC_INIT_MASK_CACHE);
+        if (ret) {
+                pr_err("%s: unable to alloc irq domain gc\n", np->full_name);
+                goto err_unmap;
+        }
+
+        gc = irq_get_domain_generic_chip(domain, 0);
+        gc->private = domain;
+        gc->reg_base = iobase;
+
+        gc->chip_types[0].regs.mask = APB_INT_MASK_L;
+        gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit;
+        gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit;
+
+        if (nrirqs > 32) {
+                gc->chip_types[1].regs.mask = APB_INT_MASK_H;
+                gc->chip_types[1].chip.irq_mask = irq_gc_mask_set_bit;
+                gc->chip_types[1].chip.irq_unmask = irq_gc_mask_clr_bit;
+        }
+
+        irq_set_handler_data(irq, gc);
+        irq_set_chained_handler(irq, dw_apb_ictl_handler);
+
+        return 0;
+
+err_unmap:
+        iounmap(iobase);
+err_release:
+        release_mem_region(r.start, resource_size(&r));
+        return ret;
+}
+IRQCHIP_DECLARE(dw_apb_ictl,
+                "snps,dw-apb-ictl", dw_apb_ictl_init);
diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile
index 1e2d83f2b995..cc29832c9638 100644
--- a/drivers/reset/Makefile
+++ b/drivers/reset/Makefile
@@ -1 +1,2 @@
 obj-$(CONFIG_RESET_CONTROLLER) += core.o
+obj-$(CONFIG_ARCH_SUNXI) += reset-sunxi.o
diff --git a/drivers/reset/reset-sunxi.c b/drivers/reset/reset-sunxi.c
new file mode 100644
index 000000000000..695bd3496eba
--- /dev/null
+++ b/drivers/reset/reset-sunxi.c
@@ -0,0 +1,175 @@
+/*
+ * Allwinner SoCs Reset Controller driver
+ *
+ * Copyright 2013 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * 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.
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/reset-controller.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+struct sunxi_reset_data {
+        spinlock_t                      lock;
+        void __iomem                    *membase;
+        struct reset_controller_dev     rcdev;
+};
+
+static int sunxi_reset_assert(struct reset_controller_dev *rcdev,
+                              unsigned long id)
+{
+        struct sunxi_reset_data *data = container_of(rcdev,
+                                                     struct sunxi_reset_data,
+                                                     rcdev);
+        int bank = id / BITS_PER_LONG;
+        int offset = id % BITS_PER_LONG;
+        unsigned long flags;
+        u32 reg;
+
+        spin_lock_irqsave(&data->lock, flags);
+
+        reg = readl(data->membase + (bank * 4));
+        writel(reg & ~BIT(offset), data->membase + (bank * 4));
+
+        spin_unlock_irqrestore(&data->lock, flags);
+
+        return 0;
+}
+
+static int sunxi_reset_deassert(struct reset_controller_dev *rcdev,
+                                unsigned long id)
+{
+        struct sunxi_reset_data *data = container_of(rcdev,
+                                                     struct sunxi_reset_data,
+                                                     rcdev);
+        int bank = id / BITS_PER_LONG;
+        int offset = id % BITS_PER_LONG;
+        unsigned long flags;
+        u32 reg;
+
+        spin_lock_irqsave(&data->lock, flags);
+
+        reg = readl(data->membase + (bank * 4));
+        writel(reg | BIT(offset), data->membase + (bank * 4));
+
+        spin_unlock_irqrestore(&data->lock, flags);
+
+        return 0;
+}
+
+static struct reset_control_ops sunxi_reset_ops = {
+        .assert         = sunxi_reset_assert,
+        .deassert       = sunxi_reset_deassert,
+};
+
+static int sunxi_reset_init(struct device_node *np)
+{
+        struct sunxi_reset_data *data;
+        struct resource res;
+        resource_size_t size;
+        int ret;
+
+        data = kzalloc(sizeof(*data), GFP_KERNEL);
+        if (!data)
+                return -ENOMEM;
+
+        ret = of_address_to_resource(np, 0, &res);
+        if (ret)
+                goto err_alloc;
+
+        size = resource_size(&res);
+        if (!request_mem_region(res.start, size, np->name)) {
+                ret = -EBUSY;
+                goto err_alloc;
+        }
+
+        data->membase = ioremap(res.start, size);
+        if (!data->membase) {
+                ret = -ENOMEM;
+                goto err_alloc;
+        }
+
+        data->rcdev.owner = THIS_MODULE;
+        data->rcdev.nr_resets = size * 32;
+        data->rcdev.ops = &sunxi_reset_ops;
+        data->rcdev.of_node = np;
+        reset_controller_register(&data->rcdev);
+
+        return 0;
+
+err_alloc:
+        kfree(data);
+        return ret;
+};
+
+/*
+ * These are the reset controller we need to initialize early on in
+ * our system, before we can even think of using a regular device
+ * driver for it.
+ */
+static const struct of_device_id sunxi_early_reset_dt_ids[] __initdata = {
+        { .compatible = "allwinner,sun6i-a31-ahb1-reset", },
+        { /* sentinel */ },
+};
+
+void __init sun6i_reset_init(void)
+{
+        struct device_node *np;
+
+        for_each_matching_node(np, sunxi_early_reset_dt_ids)
+                sunxi_reset_init(np);
+}
+
+/*
+ * And these are the controllers we can register through the regular
+ * device model.
+ */
+static const struct of_device_id sunxi_reset_dt_ids[] = {
+         { .compatible = "allwinner,sun6i-a31-clock-reset", },
+         { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, sunxi_reset_dt_ids);
+
+static int sunxi_reset_probe(struct platform_device *pdev)
+{
+        return sunxi_reset_init(pdev->dev.of_node);
+}
+
+static int sunxi_reset_remove(struct platform_device *pdev)
+{
+        struct sunxi_reset_data *data = platform_get_drvdata(pdev);
+
+        reset_controller_unregister(&data->rcdev);
+        iounmap(data->membase);
+        kfree(data);
+
+        return 0;
+}
+
+static struct platform_driver sunxi_reset_driver = {
+        .probe  = sunxi_reset_probe,
+        .remove = sunxi_reset_remove,
+        .driver = {
+                .name           = "sunxi-reset",
+                .owner          = THIS_MODULE,
+                .of_match_table = sunxi_reset_dt_ids,
+        },
+};
+module_platform_driver(sunxi_reset_driver);
+
+MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com");
+MODULE_DESCRIPTION("Allwinner SoCs Reset Controller Driver");
+MODULE_LICENSE("GPL");