22 files changed, 150 insertions, 71 deletions

diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 7b4099fcf817..d5c4669224b1 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -17,14 +17,6 @@
 
         aliases {
                 ethernet0 = &emac;
-                serial0 = &uart0;
-                serial1 = &uart1;
-                serial2 = &uart2;
-                serial3 = &uart3;
-                serial4 = &uart4;
-                serial5 = &uart5;
-                serial6 = &uart6;
-                serial7 = &uart7;
         };
 
         chosen {
@@ -39,6 +31,14 @@
                                  <&ahb_gates 44>;
                         status = "disabled";
                 };
+
+                framebuffer@1 {
+                        compatible = "allwinner,simple-framebuffer", "simple-framebuffer";
+                        allwinner,pipeline = "de_fe0-de_be0-lcd0-hdmi";
+                        clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
+                                 <&ahb_gates 44>, <&ahb_gates 46>;
+                        status = "disabled";
+                };
         };
 
         cpus {
@@ -438,8 +438,8 @@
                         reg-names = "phy_ctrl", "pmu1", "pmu2";
                         clocks = <&usb_clk 8>;
                         clock-names = "usb_phy";
-                        resets = <&usb_clk 1>, <&usb_clk 2>;
-                        reset-names = "usb1_reset", "usb2_reset";
+                        resets = <&usb_clk 0>, <&usb_clk 1>, <&usb_clk 2>;
+                        reset-names = "usb0_reset", "usb1_reset", "usb2_reset";
                         status = "disabled";
                 };
 
diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index fe3c559ca6a8..bfa742817690 100644
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -55,6 +55,12 @@
         model = "Olimex A10s-Olinuxino Micro";
         compatible = "olimex,a10s-olinuxino-micro", "allwinner,sun5i-a10s";
 
+        aliases {
+                serial0 = &uart0;
+                serial1 = &uart2;
+                serial2 = &uart3;
+        };
+
         soc@01c00000 {
                 emac: ethernet@01c0b000 {
                         pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 1b76667f3182..2e7d8263799d 100644
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -18,10 +18,6 @@
 
         aliases {
                 ethernet0 = &emac;
-                serial0 = &uart0;
-                serial1 = &uart1;
-                serial2 = &uart2;
-                serial3 = &uart3;
         };
 
         chosen {
@@ -390,8 +386,8 @@
                         reg-names = "phy_ctrl", "pmu1";
                         clocks = <&usb_clk 8>;
                         clock-names = "usb_phy";
-                        resets = <&usb_clk 1>;
-                        reset-names = "usb1_reset";
+                        resets = <&usb_clk 0>, <&usb_clk 1>;
+                        reset-names = "usb0_reset", "usb1_reset";
                         status = "disabled";
                 };
 
diff --git a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
index eeed1f236ee8..c7be3abd9fcc 100644
--- a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
+++ b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
@@ -53,6 +53,10 @@
         model = "HSG H702";
         compatible = "hsg,h702", "allwinner,sun5i-a13";
 
+        aliases {
+                serial0 = &uart1;
+        };
+
         soc@01c00000 {
                 mmc0: mmc@01c0f000 {
                         pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
index 916ee8bb826f..3decefb3c37a 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
@@ -54,6 +54,10 @@
         model = "Olimex A13-Olinuxino Micro";
         compatible = "olimex,a13-olinuxino-micro", "allwinner,sun5i-a13";
 
+        aliases {
+                serial0 = &uart1;
+        };
+
         soc@01c00000 {
                 mmc0: mmc@01c0f000 {
                         pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
index e31d291d14cb..b421f7fa197b 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
@@ -55,6 +55,10 @@
         model = "Olimex A13-Olinuxino";
         compatible = "olimex,a13-olinuxino", "allwinner,sun5i-a13";
 
+        aliases {
+                serial0 = &uart1;
+        };
+
         soc@01c00000 {
                 mmc0: mmc@01c0f000 {
                         pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index c35217ea1f64..c556688f8b8b 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -16,11 +16,6 @@
 / {
         interrupt-parent = <&intc>;
 
-        aliases {
-                serial0 = &uart1;
-                serial1 = &uart3;
-        };
-
         cpus {
                 #address-cells = <1>;
                 #size-cells = <0>;
@@ -349,8 +344,8 @@
                         reg-names = "phy_ctrl", "pmu1";
                         clocks = <&usb_clk 8>;
                         clock-names = "usb_phy";
-                        resets = <&usb_clk 1>;
-                        reset-names = "usb1_reset";
+                        resets = <&usb_clk 0>, <&usb_clk 1>;
+                        reset-names = "usb0_reset", "usb1_reset";
                         status = "disabled";
                 };
 
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index f47156b6572b..1e7e7bcf8307 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -53,12 +53,6 @@
         interrupt-parent = <&gic>;
 
         aliases {
-                serial0 = &uart0;
-                serial1 = &uart1;
-                serial2 = &uart2;
-                serial3 = &uart3;
-                serial4 = &uart4;
-                serial5 = &uart5;
                 ethernet0 = &gmac;
         };
 
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index 1cf1214cc068..bd7b15add697 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -55,6 +55,12 @@
         model = "LeMaker Banana Pi";
         compatible = "lemaker,bananapi", "allwinner,sun7i-a20";
 
+        aliases {
+                serial0 = &uart0;
+                serial1 = &uart3;
+                serial2 = &uart7;
+        };
+
         soc@01c00000 {
                 spi0: spi@01c05000 {
                         pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
index 0e4bfa3b2b85..0bcefcbbb756 100644
--- a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
+++ b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
@@ -19,6 +19,14 @@
         model = "Merrii A20 Hummingbird";
         compatible = "merrii,a20-hummingbird", "allwinner,sun7i-a20";
 
+        aliases {
+                serial0 = &uart0;
+                serial1 = &uart2;
+                serial2 = &uart3;
+                serial3 = &uart4;
+                serial4 = &uart5;
+        };
+
         soc@01c00000 {
                 mmc0: mmc@01c0f000 {
                         pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index 9d669cdf031d..66cc77707198 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -20,6 +20,9 @@
         compatible = "olimex,a20-olinuxino-micro", "allwinner,sun7i-a20";
 
         aliases {
+                serial0 = &uart0;
+                serial1 = &uart6;
+                serial2 = &uart7;
                 spi0 = &spi1;
                 spi1 = &spi2;
         };
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index e21ce5992d56..89749ce34a84 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -54,14 +54,6 @@
 
         aliases {
                 ethernet0 = &gmac;
-                serial0 = &uart0;
-                serial1 = &uart1;
-                serial2 = &uart2;
-                serial3 = &uart3;
-                serial4 = &uart4;
-                serial5 = &uart5;
-                serial6 = &uart6;
-                serial7 = &uart7;
         };
 
         chosen {
diff --git a/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts b/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
index 7f2117ce6985..32ad80804dbb 100644
--- a/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
+++ b/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
@@ -55,6 +55,10 @@
         model = "Ippo Q8H Dual Core Tablet (v5)";
         compatible = "ippo,q8h-v5", "allwinner,sun8i-a23";
 
+        aliases {
+                serial0 = &r_uart;
+        };
+
         chosen {
                 bootargs = "earlyprintk console=ttyS0,115200";
         };
diff --git a/arch/arm/boot/dts/sun8i-a23.dtsi b/arch/arm/boot/dts/sun8i-a23.dtsi
index 0746cd1024d7..86584fcf5e32 100644
--- a/arch/arm/boot/dts/sun8i-a23.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23.dtsi
@@ -52,15 +52,6 @@
 / {
         interrupt-parent = <&gic>;
 
-        aliases {
-                serial0 = &uart0;
-                serial1 = &uart1;
-                serial2 = &uart2;
-                serial3 = &uart3;
-                serial4 = &uart4;
-                serial5 = &r_uart;
-        };
-
         cpus {
                 #address-cells = <1>;
                 #size-cells = <0>;
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
index 506948f582ee..11ec71072e81 100644
--- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
+++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
@@ -54,6 +54,11 @@
         model = "Merrii A80 Optimus Board";
         compatible = "merrii,a80-optimus", "allwinner,sun9i-a80";
 
+        aliases {
+                serial0 = &uart0;
+                serial1 = &uart4;
+        };
+
         chosen {
                 bootargs = "earlyprintk console=ttyS0,115200";
         };
diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index 494714f67b57..9ef4438206a9 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -52,16 +52,6 @@
 / {
         interrupt-parent = <&gic>;
 
-        aliases {
-                serial0 = &uart0;
-                serial1 = &uart1;
-                serial2 = &uart2;
-                serial3 = &uart3;
-                serial4 = &uart4;
-                serial5 = &uart5;
-                serial6 = &r_uart;
-        };
-
         cpus {
                 #address-cells = <1>;
                 #size-cells = <0>;
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index caa21e9b8cd9..ccef8806bb58 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -190,6 +190,13 @@ static void __init armada_375_380_coherency_init(struct device_node *np)
         arch_ioremap_caller = armada_pcie_wa_ioremap_caller;
 
         /*
+         * We should switch the PL310 to I/O coherency mode only if
+         * I/O coherency is actually enabled.
+         */
+        if (!coherency_available())
+                return;
+
+        /*
          * Add the PL310 property "arm,io-coherent". This makes sure the
          * outer sync operation is not used, which allows to
          * workaround the system erratum that causes deadlocks when
diff --git a/arch/arm/mach-shmobile/board-ape6evm.c b/arch/arm/mach-shmobile/board-ape6evm.c
index 66f67816a844..444f22d370f0 100644
--- a/arch/arm/mach-shmobile/board-ape6evm.c
+++ b/arch/arm/mach-shmobile/board-ape6evm.c
@@ -18,6 +18,8 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-gic.h>
 #include <linux/kernel.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mmc/host.h>
@@ -273,6 +275,22 @@ static void __init ape6evm_add_standard_devices(void)
                                       sizeof(ape6evm_leds_pdata));
 }
 
+static void __init ape6evm_legacy_init_time(void)
+{
+        /* Do not invoke DT-based timers via clocksource_of_init() */
+}
+
+static void __init ape6evm_legacy_init_irq(void)
+{
+        void __iomem *gic_dist_base = ioremap_nocache(0xf1001000, 0x1000);
+        void __iomem *gic_cpu_base = ioremap_nocache(0xf1002000, 0x1000);
+
+        gic_init(0, 29, gic_dist_base, gic_cpu_base);
+
+        /* Do not invoke DT-based interrupt code via irqchip_init() */
+}
+
+
 static const char *ape6evm_boards_compat_dt[] __initdata = {
         "renesas,ape6evm",
         NULL,
@@ -280,7 +298,9 @@ static const char *ape6evm_boards_compat_dt[] __initdata = {
 
 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
         .init_early     = shmobile_init_delay,
+        .init_irq       = ape6evm_legacy_init_irq,
         .init_machine   = ape6evm_add_standard_devices,
         .init_late      = shmobile_init_late,
         .dt_compat      = ape6evm_boards_compat_dt,
+        .init_time      = ape6evm_legacy_init_time,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index f8197eb6e566..65b128dd4072 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -21,6 +21,8 @@
 #include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-gic.h>
 #include <linux/kernel.h>
 #include <linux/leds.h>
 #include <linux/mfd/tmio.h>
@@ -811,6 +813,16 @@ static void __init lager_init(void)
                                           lager_ksz8041_fixup);
 }
 
+static void __init lager_legacy_init_irq(void)
+{
+        void __iomem *gic_dist_base = ioremap_nocache(0xf1001000, 0x1000);
+        void __iomem *gic_cpu_base = ioremap_nocache(0xf1002000, 0x1000);
+
+        gic_init(0, 29, gic_dist_base, gic_cpu_base);
+
+        /* Do not invoke DT-based interrupt code via irqchip_init() */
+}
+
 static const char * const lager_boards_compat_dt[] __initconst = {
         "renesas,lager",
         NULL,
@@ -819,6 +831,7 @@ static const char * const lager_boards_compat_dt[] __initconst = {
 DT_MACHINE_START(LAGER_DT, "lager")
         .smp            = smp_ops(r8a7790_smp_ops),
         .init_early     = shmobile_init_delay,
+        .init_irq       = lager_legacy_init_irq,
         .init_time      = rcar_gen2_timer_init,
         .init_machine   = lager_init,
         .init_late      = shmobile_init_late,
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
index 3dd6edd9bd1d..cc9470dfb1ce 100644
--- a/arch/arm/mach-shmobile/setup-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -133,7 +133,9 @@ void __init rcar_gen2_timer_init(void)
 #ifdef CONFIG_COMMON_CLK
         rcar_gen2_clocks_init(mode);
 #endif
+#ifdef CONFIG_ARCH_SHMOBILE_MULTI
         clocksource_of_init();
+#endif
 }
 
 struct memory_reserve_config {
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index f1d027aa7a81..0edf2a6d2bbe 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -70,6 +70,18 @@ void __init shmobile_init_delay(void)
         if (!max_freq)
                 return;
 
+#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
+        /* Non-multiplatform r8a73a4 SoC cannot use arch timer due
+         * to GIC being initialized from C and arch timer via DT */
+        if (of_machine_is_compatible("renesas,r8a73a4"))
+                has_arch_timer = false;
+
+        /* Non-multiplatform r8a7790 SoC cannot use arch timer due
+         * to GIC being initialized from C and arch timer via DT */
+        if (of_machine_is_compatible("renesas,r8a7790"))
+                has_arch_timer = false;
+#endif
+
         if (!has_arch_timer || !IS_ENABLED(CONFIG_ARM_ARCH_TIMER)) {
                 if (is_a7_a8_a9)
                         shmobile_setup_delay_hz(max_freq, 1, 3);
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 7864797609b3..a673c7f7e208 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1940,13 +1940,32 @@ void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping)
 }
 EXPORT_SYMBOL_GPL(arm_iommu_release_mapping);
 
+static int __arm_iommu_attach_device(struct device *dev,
+                                     struct dma_iommu_mapping *mapping)
+{
+        int err;
+
+        err = iommu_attach_device(mapping->domain, dev);
+        if (err)
+                return err;
+
+        kref_get(&mapping->kref);
+        dev->archdata.mapping = mapping;
+
+        pr_debug("Attached IOMMU controller to %s device.\n", dev_name(dev));
+        return 0;
+}
+
 /**
  * arm_iommu_attach_device
  * @dev: valid struct device pointer
  * @mapping: io address space mapping structure (returned from
  *      arm_iommu_create_mapping)
  *
- * Attaches specified io address space mapping to the provided device,
+ * Attaches specified io address space mapping to the provided device.
+ * This replaces the dma operations (dma_map_ops pointer) with the
+ * IOMMU aware version.
+ *
  * More than one client might be attached to the same io address space
  * mapping.
  */
@@ -1955,25 +1974,16 @@ int arm_iommu_attach_device(struct device *dev,
 {
         int err;
 
-        err = iommu_attach_device(mapping->domain, dev);
+        err = __arm_iommu_attach_device(dev, mapping);
         if (err)
                 return err;
 
-        kref_get(&mapping->kref);
-        dev->archdata.mapping = mapping;
-
-        pr_debug("Attached IOMMU controller to %s device.\n", dev_name(dev));
+        set_dma_ops(dev, &iommu_ops);
         return 0;
 }
 EXPORT_SYMBOL_GPL(arm_iommu_attach_device);
 
-/**
- * arm_iommu_detach_device
- * @dev: valid struct device pointer
- *
- * Detaches the provided device from a previously attached map.
- */
-void arm_iommu_detach_device(struct device *dev)
+static void __arm_iommu_detach_device(struct device *dev)
 {
         struct dma_iommu_mapping *mapping;
 
@@ -1989,6 +1999,19 @@ void arm_iommu_detach_device(struct device *dev)
 
         pr_debug("Detached IOMMU controller from %s device.\n", dev_name(dev));
 }
+
+/**
+ * arm_iommu_detach_device
+ * @dev: valid struct device pointer
+ *
+ * Detaches the provided device from a previously attached map.
+ * This voids the dma operations (dma_map_ops pointer)
+ */
+void arm_iommu_detach_device(struct device *dev)
+{
+        __arm_iommu_detach_device(dev);
+        set_dma_ops(dev, NULL);
+}
 EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
 
 static struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
@@ -2011,7 +2034,7 @@ static bool arm_setup_iommu_dma_ops(struct device *dev, u64 dma_base, u64 size,
                 return false;
         }
 
-        if (arm_iommu_attach_device(dev, mapping)) {
+        if (__arm_iommu_attach_device(dev, mapping)) {
                 pr_warn("Failed to attached device %s to IOMMU_mapping\n",
                                 dev_name(dev));
                 arm_iommu_release_mapping(mapping);
@@ -2025,7 +2048,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev)
 {
         struct dma_iommu_mapping *mapping = dev->archdata.mapping;
 
-        arm_iommu_detach_device(dev);
+        __arm_iommu_detach_device(dev);
         arm_iommu_release_mapping(mapping);
 }