cns3xxx: copy patches for kernel 4.14

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2024-12-19 05:38:00 +00:00 · 2018-01-11 16:04:34 +01:00 · 2018-01-11 16:04:34 +01:00 · 0ef702c7e3
commit 0ef702c7e3
parent 809a265e35
24 changed files with 1170 additions and 0 deletions
--- a/target/linux/cns3xxx/patches-4.14/000-cns3xxx_arch_include.patch
+++ b/target/linux/cns3xxx/patches-4.14/000-cns3xxx_arch_include.patch
@ -0,0 +1,8 @@
+--- a/arch/arm/mach-cns3xxx/Makefile
+++ b/arch/arm/mach-cns3xxx/Makefile
+@@ -1,3 +1,5 @@
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
+
+ obj-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx.o
+ cns3xxx-y				+= core.o pm.o
+ cns3xxx-$(CONFIG_ATAGS)			+= devices.o
--- a/target/linux/cns3xxx/patches-4.14/001-arm_openwrt_machtypes.patch
+++ b/target/linux/cns3xxx/patches-4.14/001-arm_openwrt_machtypes.patch
@ -0,0 +1,7 @@
+--- a/arch/arm/tools/mach-types
+++ b/arch/arm/tools/mach-types
+@@ -1006,3 +1006,4 @@ eco5_bx2		MACH_ECO5_BX2		ECO5_BX2		4572
+ eukrea_cpuimx28sd	MACH_EUKREA_CPUIMX28SD	EUKREA_CPUIMX28SD	4573
+ domotab			MACH_DOMOTAB		DOMOTAB			4574
+ pfla03			MACH_PFLA03		PFLA03			4575
+gw2388			MACH_GW2388		GW2388			2635
--- a/target/linux/cns3xxx/patches-4.14/010-arm_introduce-dma-fiq-irq-broadcast.patch
+++ b/target/linux/cns3xxx/patches-4.14/010-arm_introduce-dma-fiq-irq-broadcast.patch
@ -0,0 +1,80 @@
+--- a/arch/arm/include/asm/glue-cache.h
+++ b/arch/arm/include/asm/glue-cache.h
+@@ -152,9 +152,15 @@ static inline void nop_dma_unmap_area(co
+ #define __cpuc_flush_user_range		__glue(_CACHE,_flush_user_cache_range)
+ #define __cpuc_coherent_kern_range	__glue(_CACHE,_coherent_kern_range)
+ #define __cpuc_coherent_user_range	__glue(_CACHE,_coherent_user_range)
+-#define __cpuc_flush_dcache_area	__glue(_CACHE,_flush_kern_dcache_area)
+ 
+-#define dmac_flush_range		__glue(_CACHE,_dma_flush_range)
+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST
+# define __cpuc_flush_dcache_area	__glue(_CACHE,_flush_kern_dcache_area)
+# define dmac_flush_range		__glue(_CACHE,_dma_flush_range)
+#else
+# define __cpuc_flush_dcache_area	__glue(fiq,_flush_kern_dcache_area)
+# define dmac_flush_range		__glue(fiq,_dma_flush_range)
+#endif
+
+ #endif
+ 
+ #endif
+--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
+@@ -873,6 +873,17 @@ config DMA_CACHE_RWFO
+ 	  in hardware, other workarounds are needed (e.g. cache
+ 	  maintenance broadcasting in software via FIQ).
+ 
+config DMA_CACHE_FIQ_BROADCAST
+	bool "Enable fiq broadcast DMA cache maintenance"
+	depends on CPU_V6K && SMP
+	select FIQ
+	help
+	  The Snoop Control Unit on ARM11MPCore does not detect the
+	  cache maintenance operations and the dma_{map,unmap}_area()
+	  functions may leave stale cache entries on other CPUs. By
+	  enabling this option, fiq broadcast in the ARMv6
+	  DMA cache maintenance functions is performed.
+
+ config OUTER_CACHE
+ 	bool
+ 
+--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
+@@ -319,6 +319,7 @@ void __sync_icache_dcache(pte_t pteval)
+ void flush_dcache_page(struct page *page)
+ {
+ 	struct address_space *mapping;
+	bool skip_broadcast = true;
+ 
+ 	/*
+ 	 * The zero page is never written to, so never has any dirty
+@@ -329,7 +330,10 @@ void flush_dcache_page(struct page *page
+ 
+ 	mapping = page_mapping(page);
+ 
+-	if (!cache_ops_need_broadcast() &&
+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST
+        skip_broadcast = !cache_ops_need_broadcast();
+#endif
+        if (skip_broadcast &&
+ 	    mapping && !page_mapcount(page))
+ 		clear_bit(PG_dcache_clean, &page->flags);
+ 	else {
+--- a/arch/arm/mm/dma.h
+++ b/arch/arm/mm/dma.h
+@@ -4,8 +4,13 @@
+ #include <asm/glue-cache.h>
+ 
+ #ifndef MULTI_CACHE
+-#define dmac_map_area			__glue(_CACHE,_dma_map_area)
+-#define dmac_unmap_area 		__glue(_CACHE,_dma_unmap_area)
+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST
+# define dmac_map_area			__glue(_CACHE,_dma_map_area)
+# define dmac_unmap_area 		__glue(_CACHE,_dma_unmap_area)
+#else
+# define dmac_map_area			__glue(fiq,_dma_map_area)
+# define dmac_unmap_area			__glue(fiq,_dma_unmap_area)
+#endif
+ 
+ /*
+  * These are private to the dma-mapping API.  Do not use directly.
--- a/target/linux/cns3xxx/patches-4.14/020-watchdog_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/020-watchdog_support.patch
@ -0,0 +1,185 @@
+Add a watchdog driver for ARM MPcore processors.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
+@@ -324,6 +324,13 @@ config KS8695_WATCHDOG
+ 	  Watchdog timer embedded into KS8695 processor. This will reboot your
+ 	  system when the timeout is reached.
+ 
+config MPCORE_WATCHDOG
+	tristate "MPcore watchdog"
+	depends on HAVE_ARM_TWD
+	select WATCHDOG_CORE
+	help
+	  Watchdog timer embedded into the MPcore system
+
+ config HAVE_S3C2410_WATCHDOG
+ 	bool
+ 	help
+--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
+@@ -47,6 +47,7 @@ obj-$(CONFIG_21285_WATCHDOG) += wdt285.o
+ obj-$(CONFIG_977_WATCHDOG) += wdt977.o
+ obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
+ obj-$(CONFIG_KS8695_WATCHDOG) += ks8695_wdt.o
+obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o
+ obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
+ obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o
+ obj-$(CONFIG_SAMA5D4_WATCHDOG) += sama5d4_wdt.o
+--- /dev/null
+++ b/drivers/watchdog/mpcore_wdt.c
+@@ -0,0 +1,118 @@
+/*
+ * Watchdog driver for ARM MPcore
+ *
+ * Copyright (C) 2017 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/watchdog.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <asm/smp_twd.h>
+
+static void __iomem *wdt_base;
+static int wdt_timeout = 60;
+
+static int mpcore_wdt_keepalive(struct watchdog_device *wdd)
+{
+	static int perturb;
+	u32 count;
+
+	count = (twd_timer_get_rate() / 256) * wdt_timeout;
+
+	/* Reload register needs a different value on each refresh */
+	count += perturb;
+	perturb = !perturb;
+
+	iowrite32(count, wdt_base + TWD_WDOG_LOAD);
+
+	return 0;
+}
+
+static int mpcore_wdt_start(struct watchdog_device *wdd)
+{
+	mpcore_wdt_keepalive(wdd);
+
+	/* prescale = 256, mode = 1, enable = 1 */
+	iowrite32(0x0000FF09, wdt_base + TWD_WDOG_CONTROL);
+
+	return 0;
+}
+
+static int mpcore_wdt_stop(struct watchdog_device *wdd)
+{
+	iowrite32(0x12345678, wdt_base + TWD_WDOG_DISABLE);
+	iowrite32(0x87654321, wdt_base + TWD_WDOG_DISABLE);
+	iowrite32(0x0, wdt_base + TWD_WDOG_CONTROL);
+
+	return 0;
+}
+
+static int mpcore_wdt_set_timeout(struct watchdog_device *wdd,
+				 unsigned int timeout)
+{
+	mpcore_wdt_stop(wdd);
+	wdt_timeout = timeout;
+	mpcore_wdt_start(wdd);
+
+	return 0;
+}
+
+static const struct watchdog_info mpcore_wdt_info = {
+	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+	.identity = "MPcore Watchdog",
+};
+
+static const struct watchdog_ops mpcore_wdt_ops = {
+	.owner = THIS_MODULE,
+	.start = mpcore_wdt_start,
+	.stop  = mpcore_wdt_stop,
+	.ping  = mpcore_wdt_keepalive,
+	.set_timeout = mpcore_wdt_set_timeout,
+};
+
+static struct watchdog_device mpcore_wdt = {
+	.info = &mpcore_wdt_info,
+	.ops = &mpcore_wdt_ops,
+	.min_timeout = 1,
+	.max_timeout = 65535,
+};
+
+static int mpcore_wdt_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	unsigned long rate = twd_timer_get_rate();
+
+	pr_info("MPCore WD init. clockrate: %u prescaler: %u countrate: %u timeout: %us\n", rate, 256, rate / 256, wdt_timeout);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENODEV;
+
+	wdt_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(wdt_base))
+		return PTR_ERR(wdt_base);
+
+	watchdog_register_device(&mpcore_wdt);
+	return 0;
+}
+
+static int mpcore_wdt_remove(struct platform_device *dev)
+{
+	watchdog_unregister_device(&mpcore_wdt);
+	return 0;
+}
+
+static struct platform_driver mpcore_wdt_driver = {
+	.probe		= mpcore_wdt_probe,
+	.remove		= mpcore_wdt_remove,
+	.driver		= {
+		.name	= "mpcore_wdt",
+	},
+};
+
+module_platform_driver(mpcore_wdt_driver);
+MODULE_AUTHOR("Felix Fietkau <nbd@nbd.name>");
+MODULE_LICENSE("GPL");
+--- a/arch/arm/include/asm/smp_twd.h
+++ b/arch/arm/include/asm/smp_twd.h
+@@ -33,5 +33,6 @@ struct twd_local_timer name __initdata =
+ };
+ 
+ int twd_local_timer_register(struct twd_local_timer *);
+unsigned long twd_timer_get_rate(void);
+ 
+ #endif
+--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
+@@ -15,6 +15,7 @@
+ #include <linux/delay.h>
+ #include <linux/device.h>
+ #include <linux/err.h>
+#include <linux/export.h>
+ #include <linux/smp.h>
+ #include <linux/jiffies.h>
+ #include <linux/clockchips.h>
+@@ -380,6 +381,14 @@ int __init twd_local_timer_register(stru
+ 	return twd_local_timer_common_register(NULL);
+ }
+ 
+/* Needed by mpcore_wdt */
+unsigned long twd_timer_get_rate(void)
+{
+	return twd_timer_rate;
+}
+EXPORT_SYMBOL_GPL(twd_timer_get_rate);
+
+
+ #ifdef CONFIG_OF
+ static int __init twd_local_timer_of_register(struct device_node *np)
+ {
--- a/target/linux/cns3xxx/patches-4.14/025-smp_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/025-smp_support.patch
@ -0,0 +1,30 @@
+--- a/arch/arm/mach-cns3xxx/Makefile
+++ b/arch/arm/mach-cns3xxx/Makefile
+@@ -5,3 +5,5 @@ cns3xxx-y				+= core.o pm.o
+ cns3xxx-$(CONFIG_ATAGS)			+= devices.o
+ cns3xxx-$(CONFIG_PCI)			+= pcie.o
+ cns3xxx-$(CONFIG_MACH_CNS3420VB)	+= cns3420vb.o
+cns3xxx-$(CONFIG_SMP)			+= platsmp.o headsmp.o
+cns3xxx-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
+--- a/arch/arm/mach-cns3xxx/Kconfig
+++ b/arch/arm/mach-cns3xxx/Kconfig
+@@ -2,6 +2,9 @@ menuconfig ARCH_CNS3XXX
+ 	bool "Cavium Networks CNS3XXX family"
+ 	depends on ARCH_MULTI_V6
+ 	select ARM_GIC
+	select HAVE_ARM_SCU if SMP
+	select HAVE_ARM_TWD
+	select HAVE_SMP
+ 	help
+ 	  Support for Cavium Networks CNS3XXX platform.
+ 
+--- a/arch/arm/mach-cns3xxx/core.h
+++ b/arch/arm/mach-cns3xxx/core.h
+@@ -13,6 +13,7 @@
+ 
+ #include <linux/reboot.h>
+ 
+extern struct smp_operations cns3xxx_smp_ops;
+ extern void cns3xxx_timer_init(void);
+ 
+ #ifdef CONFIG_CACHE_L2X0
--- a/target/linux/cns3xxx/patches-4.14/030-pcie_clock.patch
+++ b/target/linux/cns3xxx/patches-4.14/030-pcie_clock.patch
@ -0,0 +1,11 @@
+--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
+@@ -281,8 +281,6 @@ void __init cns3xxx_pcie_init_late(void)
+ 			"imprecise external abort");
+ 
+ 	for (i = 0; i < ARRAY_SIZE(cns3xxx_pcie); i++) {
+-		cns3xxx_pwr_clk_en(0x1 << PM_CLK_GATE_REG_OFFSET_PCIE(i));
+-		cns3xxx_pwr_soft_rst(0x1 << PM_SOFT_RST_REG_OFFST_PCIE(i));
+ 		cns3xxx_pcie_check_link(&cns3xxx_pcie[i]);
+ 		cns3xxx_pcie_hw_init(&cns3xxx_pcie[i]);
+ 		private_data = &cns3xxx_pcie[i];
--- a/target/linux/cns3xxx/patches-4.14/040-fiq_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/040-fiq_support.patch
@ -0,0 +1,40 @@
+--- a/arch/arm/mach-cns3xxx/Kconfig
+++ b/arch/arm/mach-cns3xxx/Kconfig
+@@ -5,6 +5,7 @@ menuconfig ARCH_CNS3XXX
+ 	select HAVE_ARM_SCU if SMP
+ 	select HAVE_ARM_TWD
+ 	select HAVE_SMP
+	select FIQ
+ 	help
+ 	  Support for Cavium Networks CNS3XXX platform.
+ 
+--- a/arch/arm/mach-cns3xxx/Makefile
+++ b/arch/arm/mach-cns3xxx/Makefile
+@@ -5,5 +5,5 @@ cns3xxx-y				+= core.o pm.o
+ cns3xxx-$(CONFIG_ATAGS)			+= devices.o
+ cns3xxx-$(CONFIG_PCI)			+= pcie.o
+ cns3xxx-$(CONFIG_MACH_CNS3420VB)	+= cns3420vb.o
+-cns3xxx-$(CONFIG_SMP)			+= platsmp.o headsmp.o
+cns3xxx-$(CONFIG_SMP)			+= platsmp.o headsmp.o cns3xxx_fiq.o
+ cns3xxx-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
+--- a/arch/arm/mach-cns3xxx/cns3xxx.h
+++ b/arch/arm/mach-cns3xxx/cns3xxx.h
+@@ -261,6 +261,7 @@
+ #define MISC_PCIE_INT_MASK(x)			MISC_MEM_MAP(0x978 + (x) * 0x100)
+ #define MISC_PCIE_INT_STATUS(x)			MISC_MEM_MAP(0x97C + (x) * 0x100)
+ 
+#define MISC_FIQ_CPU(x)				MISC_MEM_MAP(0xA58 - (x) * 0x4)
+ /*
+  * Power management and clock control
+  */
+--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
+@@ -856,7 +856,7 @@ config VDSO
+ 
+ config DMA_CACHE_RWFO
+ 	bool "Enable read/write for ownership DMA cache maintenance"
+-	depends on CPU_V6K && SMP
+	depends on CPU_V6K && SMP && !ARCH_CNS3XXX
+ 	default y
+ 	help
+ 	  The Snoop Control Unit on ARM11MPCore does not detect the
--- a/target/linux/cns3xxx/patches-4.14/045-twd_base.patch
+++ b/target/linux/cns3xxx/patches-4.14/045-twd_base.patch
@ -0,0 +1,43 @@
+--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
+@@ -17,6 +17,7 @@
+ #include <linux/platform_device.h>
+ #include <linux/usb/ehci_pdriver.h>
+ #include <linux/usb/ohci_pdriver.h>
+#include <asm/smp_twd.h>
+ #include <asm/mach/arch.h>
+ #include <asm/mach/map.h>
+ #include <asm/mach/time.h>
+@@ -26,6 +27,8 @@
+ #include "core.h"
+ #include "pm.h"
+ 
+#define IRQ_LOCALTIMER 29
+
+ static struct map_desc cns3xxx_io_desc[] __initdata = {
+ 	{
+ 		.virtual	= CNS3XXX_TC11MP_SCU_BASE_VIRT,
+@@ -198,6 +201,15 @@ static struct irqaction cns3xxx_timer_ir
+ 	.handler	= cns3xxx_timer_interrupt,
+ };
+ 
+static void __init cns3xxx_init_twd(void)
+{
+	static DEFINE_TWD_LOCAL_TIMER(cns3xx_twd_local_timer,
+		CNS3XXX_TC11MP_TWD_BASE,
+		IRQ_LOCALTIMER);
+
+	twd_local_timer_register(&cns3xx_twd_local_timer);
+}
+
+ /*
+  * Set up the clock source and clock events devices
+  */
+@@ -251,6 +263,7 @@ static void __init __cns3xxx_timer_init(
+ 	setup_irq(timer_irq, &cns3xxx_timer_irq);
+ 
+ 	cns3xxx_clockevents_init(timer_irq);
+	cns3xxx_init_twd();
+ }
+ 
+ void __init cns3xxx_timer_init(void)
--- a/target/linux/cns3xxx/patches-4.14/055-pcie_io.patch
+++ b/target/linux/cns3xxx/patches-4.14/055-pcie_io.patch
@ -0,0 +1,19 @@
+--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
+@@ -81,6 +81,16 @@ static struct map_desc cns3xxx_io_desc[]
+ 		.pfn		= __phys_to_pfn(CNS3XXX_PCIE1_CFG1_BASE),
+ 		.length		= SZ_16M,
+ 		.type		= MT_DEVICE,
+	}, {
+		.virtual	= CNS3XXX_PCIE0_IO_BASE_VIRT,
+		.pfn		= __phys_to_pfn(CNS3XXX_PCIE0_IO_BASE),
+		.length		= SZ_16M,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= CNS3XXX_PCIE1_IO_BASE_VIRT,
+		.pfn		= __phys_to_pfn(CNS3XXX_PCIE1_IO_BASE),
+		.length		= SZ_16M,
+		.type		= MT_DEVICE,
+ #endif
+ 	},
+ };
--- a/target/linux/cns3xxx/patches-4.14/060-pcie_abort.patch
+++ b/target/linux/cns3xxx/patches-4.14/060-pcie_abort.patch
@ -0,0 +1,109 @@
+--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
+@@ -86,6 +86,79 @@ static void __iomem *cns3xxx_pci_map_bus
+ 	return base + (where & 0xffc) + (devfn << 12);
+ }
+ 
+static inline int check_master_abort(struct pci_bus *bus, unsigned int devfn, int where)
+{
+	struct cns3xxx_pcie *cnspci = pbus_to_cnspci(bus);
+
+  /* check PCI-compatible status register after access */
+	if (cnspci->linked) {
+		void __iomem *host_base;
+		u32 sreg, ereg;
+
+		host_base = (void __iomem *) cnspci->cfg_bases[CNS3XXX_HOST_TYPE].virtual;
+		sreg = __raw_readw(host_base + 0x6) & 0xF900;
+		ereg = __raw_readl(host_base + 0x104); // Uncorrectable Error Status Reg
+
+		if (sreg | ereg) {
+			/* SREG:
+			 *  BIT15 - Detected Parity Error
+			 *  BIT14 - Signaled System Error
+			 *  BIT13 - Received Master Abort
+			 *  BIT12 - Received Target Abort
+			 *  BIT11 - Signaled Target Abort
+			 *  BIT08 - Master Data Parity Error
+			 *
+			 * EREG:
+			 *  BIT20 - Unsupported Request
+			 *  BIT19 - ECRC
+			 *  BIT18 - Malformed TLP
+			 *  BIT17 - Receiver Overflow
+			 *  BIT16 - Unexpected Completion
+			 *  BIT15 - Completer Abort
+			 *  BIT14 - Completion Timeout
+			 *  BIT13 - Flow Control Protocol Error
+			 *  BIT12 - Poisoned TLP
+			 *  BIT04 - Data Link Protocol Error
+			 *
+			 * TODO: see Documentation/pci-error-recovery.txt
+			 *    implement error_detected handler
+			 */
+/*
+			printk("pci error: %04d:%02x:%02x.%02x sreg=0x%04x ereg=0x%08x", pci_domain_nr(bus), bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), sreg, ereg);
+			if (sreg & BIT(15)) printk(" <PERR");
+			if (sreg & BIT(14)) printk(" >SERR");
+			if (sreg & BIT(13)) printk(" <MABRT");
+			if (sreg & BIT(12)) printk(" <TABRT");
+			if (sreg & BIT(11)) printk(" >TABRT");
+			if (sreg & BIT( 8)) printk(" MPERR");
+
+			if (ereg & BIT(20)) printk(" Unsup");
+			if (ereg & BIT(19)) printk(" ECRC");
+			if (ereg & BIT(18)) printk(" MTLP");
+			if (ereg & BIT(17)) printk(" OFLOW");
+			if (ereg & BIT(16)) printk(" Unex");
+			if (ereg & BIT(15)) printk(" ABRT");
+			if (ereg & BIT(14)) printk(" COMPTO");
+			if (ereg & BIT(13)) printk(" FLOW");
+			if (ereg & BIT(12)) printk(" PTLP");
+			if (ereg & BIT( 4)) printk(" DLINK");
+			printk("\n");
+*/
+			pr_debug("%s failed port%d sreg=0x%04x\n", __func__,
+				pci_domain_nr(bus), sreg);
+
+			/* make sure the status bits are reset */
+			__raw_writew(sreg, host_base + 6);
+			__raw_writel(ereg, host_base + 0x104);
+			return 1;
+		}
+	}
+	else
+		return 1;
+
+  return 0;
+}
+
+ static int cns3xxx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+ 				   int where, int size, u32 *val)
+ {
+@@ -95,6 +168,11 @@ static int cns3xxx_pci_read_config(struc
+ 
+ 	ret = pci_generic_config_read32(bus, devfn, where, size, val);
+ 
+	if (check_master_abort(bus, devfn, where)) {
+		printk(KERN_ERR "pci error: %04d:%02x:%02x.%02x %02x(%d)= master_abort on read\n", pci_domain_nr(bus), bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	}
+
+ 	if (ret == PCIBIOS_SUCCESSFUL && !bus->number && !devfn &&
+ 	    (where & 0xffc) == PCI_CLASS_REVISION)
+ 		/*
+@@ -257,8 +335,14 @@ static void __init cns3xxx_pcie_hw_init(
+ static int cns3xxx_pcie_abort_handler(unsigned long addr, unsigned int fsr,
+ 				      struct pt_regs *regs)
+ {
+#if 0
+/* R14_ABORT = PC+4 for XSCALE but not ARM11MPCORE
+ * ignore imprecise aborts and use PCI-compatible Status register to
+ * determine errors instead
+ */
+ 	if (fsr & (1 << 10))
+ 		regs->ARM_pc += 4;
+#endif
+ 	return 0;
+ }
+ 
--- a/target/linux/cns3xxx/patches-4.14/065-pcie_skip_inactive.patch
+++ b/target/linux/cns3xxx/patches-4.14/065-pcie_skip_inactive.patch
@ -0,0 +1,11 @@
+--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
+@@ -366,6 +366,8 @@ void __init cns3xxx_pcie_init_late(void)
+ 
+ 	for (i = 0; i < ARRAY_SIZE(cns3xxx_pcie); i++) {
+ 		cns3xxx_pcie_check_link(&cns3xxx_pcie[i]);
+		if (!cns3xxx_pcie[i].linked)
+			continue;
+ 		cns3xxx_pcie_hw_init(&cns3xxx_pcie[i]);
+ 		private_data = &cns3xxx_pcie[i];
+ 		pci_common_init(&hw_pci);
--- a/target/linux/cns3xxx/patches-4.14/070-i2c_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/070-i2c_support.patch
@ -0,0 +1,31 @@
+--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
+@@ -441,6 +441,18 @@ config I2C_CBUS_GPIO
+ 	  This driver can also be built as a module.  If so, the module
+ 	  will be called i2c-cbus-gpio.
+ 
+config I2C_CNS3XXX
+	tristate "Cavium CNS3xxx I2C driver"
+	depends on ARCH_CNS3XXX
+	help
+	  Support for Cavium CNS3xxx I2C controller driver.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-cns3xxx.
+
+	  Please note that this driver might be needed to bring up other
+	  devices such as Cavium CNS3xxx Ethernet.
+
+ config I2C_CPM
+ 	tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
+ 	depends on CPM1 || CPM2
+--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
+@@ -114,6 +114,7 @@ obj-$(CONFIG_I2C_VIPERBOARD)	+= i2c-vipe
+ obj-$(CONFIG_I2C_ACORN)		+= i2c-acorn.o
+ obj-$(CONFIG_I2C_BCM_KONA)	+= i2c-bcm-kona.o
+ obj-$(CONFIG_I2C_BRCMSTB)	+= i2c-brcmstb.o
+obj-$(CONFIG_I2C_CNS3XXX)	+= i2c-cns3xxx.o
+ obj-$(CONFIG_I2C_CROS_EC_TUNNEL)	+= i2c-cros-ec-tunnel.o
+ obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
+ obj-$(CONFIG_I2C_OPAL)		+= i2c-opal.o
--- a/target/linux/cns3xxx/patches-4.14/075-spi_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/075-spi_support.patch
@ -0,0 +1,51 @@
+--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
+@@ -199,6 +199,13 @@ config SPI_CLPS711X
+ 	  This enables dedicated general purpose SPI/Microwire1-compatible
+ 	  master mode interface (SSI1) for CLPS711X-based CPUs.
+ 
+config SPI_CNS3XXX
+	tristate "CNS3XXX SPI controller"
+	depends on ARCH_CNS3XXX && SPI_MASTER
+	select SPI_BITBANG
+	help
+	  This enables using the CNS3XXX SPI controller in master mode.
+
+ config SPI_COLDFIRE_QSPI
+ 	tristate "Freescale Coldfire QSPI controller"
+ 	depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
+--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
+@@ -29,6 +29,7 @@ obj-$(CONFIG_SPI_BITBANG)		+= spi-bitban
+ obj-$(CONFIG_SPI_BUTTERFLY)		+= spi-butterfly.o
+ obj-$(CONFIG_SPI_CADENCE)		+= spi-cadence.o
+ obj-$(CONFIG_SPI_CLPS711X)		+= spi-clps711x.o
+obj-$(CONFIG_SPI_CNS3XXX)		+= spi-cns3xxx.o
+ obj-$(CONFIG_SPI_COLDFIRE_QSPI)		+= spi-coldfire-qspi.o
+ obj-$(CONFIG_SPI_DAVINCI)		+= spi-davinci.o
+ obj-$(CONFIG_SPI_DLN2)			+= spi-dln2.o
+--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
+@@ -763,6 +763,10 @@ struct spi_transfer {
+ 	u32		speed_hz;
+ 
+ 	struct list_head transfer_list;
+
+#ifdef CONFIG_ARCH_CNS3XXX
+	unsigned	last_in_message_list;
+#endif
+ };
+ 
+ /**
+--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
+@@ -985,6 +985,9 @@ static int spi_transfer_one_message(stru
+ 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+ 		trace_spi_transfer_start(msg, xfer);
+ 
+		xfer->last_in_message_list =
+			list_is_last(&xfer->transfer_list, &msg->transfers);
+
+ 		spi_statistics_add_transfer_stats(statm, xfer, master);
+ 		spi_statistics_add_transfer_stats(stats, xfer, master);
+ 
--- a/target/linux/cns3xxx/patches-4.14/080-sata_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/080-sata_support.patch
@ -0,0 +1,26 @@
+--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
+@@ -37,12 +37,23 @@ static struct scsi_host_template ahci_pl
+ 	AHCI_SHT(DRV_NAME),
+ };
+ 
+static const struct ata_port_info cns3xxx_port_info = {
+	.flags		= AHCI_FLAG_COMMON,
+	.pio_mask	= ATA_PIO4,
+	.udma_mask	= ATA_UDMA6,
+	.port_ops	= &ahci_pmp_retry_srst_ops,
+};
+
+ static int ahci_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
+ 	struct ahci_host_priv *hpriv;
+	const struct ata_port_info *info = &ahci_port_info;
+ 	int rc;
+ 
+	if (IS_ENABLED(CONFIG_ARCH_CNS3XXX))
+		info = &cns3xxx_port_info;
+
+ 	hpriv = ahci_platform_get_resources(pdev);
+ 	if (IS_ERR(hpriv))
+ 		return PTR_ERR(hpriv);
--- a/target/linux/cns3xxx/patches-4.14/090-timers.patch
+++ b/target/linux/cns3xxx/patches-4.14/090-timers.patch
@ -0,0 +1,103 @@
+--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
+@@ -138,6 +138,7 @@ static int cns3xxx_set_oneshot(struct cl
+ 
+ 	/* period set, and timer enabled in 'next_event' hook */
+ 	ctrl |= (1 << 2) | (1 << 9);
+	writel(0, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET);
+ 	writel(ctrl, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
+ 	return 0;
+ }
+@@ -148,7 +149,7 @@ static int cns3xxx_set_periodic(struct c
+ 	int pclk = cns3xxx_cpu_clock() / 8;
+ 	int reload;
+ 
+-	reload = pclk * 20 / (3 * HZ) * 0x25000;
+	reload = pclk * 1000000 / HZ;
+ 	writel(reload, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET);
+ 	ctrl |= (1 << 0) | (1 << 2) | (1 << 9);
+ 	writel(ctrl, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
+@@ -175,7 +176,7 @@ static struct clock_event_device cns3xxx
+ 	.set_state_oneshot	= cns3xxx_set_oneshot,
+ 	.tick_resume		= cns3xxx_shutdown,
+ 	.set_next_event		= cns3xxx_timer_set_next_event,
+-	.rating			= 350,
+	.rating			= 300,
+ 	.cpumask		= cpu_all_mask,
+ };
+ 
+@@ -220,6 +221,32 @@ static void __init cns3xxx_init_twd(void
+ 	twd_local_timer_register(&cns3xx_twd_local_timer);
+ }
+ 
+static cycle_t cns3xxx_get_cycles(struct clocksource *cs)
+{
+  u64 val;
+
+  val = readl(cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET);
+  val &= 0xffff;
+
+  return ((val << 32) | readl(cns3xxx_tmr1 + TIMER_FREERUN_OFFSET));
+}
+
+static struct clocksource clocksource_cns3xxx = {
+	.name = "freerun",
+	.rating = 200,
+	.read = cns3xxx_get_cycles,
+	.mask = CLOCKSOURCE_MASK(48),
+	.flags  = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static void __init cns3xxx_clocksource_init(void)
+{
+	/* Reset the FreeRunning counter */
+	writel((1 << 16), cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET);
+
+	clocksource_register_khz(&clocksource_cns3xxx, 100);
+}
+
+ /*
+  * Set up the clock source and clock events devices
+  */
+@@ -237,13 +264,12 @@ static void __init __cns3xxx_timer_init(
+ 	/* stop free running timer3 */
+ 	writel(0, cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET);
+ 
+-	/* timer1 */
+-	writel(0x5C800, cns3xxx_tmr1 + TIMER1_COUNTER_OFFSET);
+-	writel(0x5C800, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET);
+-
+ 	writel(0, cns3xxx_tmr1 + TIMER1_MATCH_V1_OFFSET);
+ 	writel(0, cns3xxx_tmr1 + TIMER1_MATCH_V2_OFFSET);
+ 
+	val = (cns3xxx_cpu_clock() >> 3) * 1000000 / HZ;
+	writel(val, cns3xxx_tmr1 + TIMER1_COUNTER_OFFSET);
+
+ 	/* mask irq, non-mask timer1 overflow */
+ 	irq_mask = readl(cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET);
+ 	irq_mask &= ~(1 << 2);
+@@ -255,23 +281,9 @@ static void __init __cns3xxx_timer_init(
+ 	val |= (1 << 9);
+ 	writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
+ 
+-	/* timer2 */
+-	writel(0, cns3xxx_tmr1 + TIMER2_MATCH_V1_OFFSET);
+-	writel(0, cns3xxx_tmr1 + TIMER2_MATCH_V2_OFFSET);
+-
+-	/* mask irq */
+-	irq_mask = readl(cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET);
+-	irq_mask |= ((1 << 3) | (1 << 4) | (1 << 5));
+-	writel(irq_mask, cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET);
+-
+-	/* down counter */
+-	val = readl(cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
+-	val |= (1 << 10);
+-	writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
+-
+-	/* Make irqs happen for the system timer */
+ 	setup_irq(timer_irq, &cns3xxx_timer_irq);
+ 
+	cns3xxx_clocksource_init();
+ 	cns3xxx_clockevents_init(timer_irq);
+ 	cns3xxx_init_twd();
+ }
--- a/target/linux/cns3xxx/patches-4.14/093-add-virt-pci-io-mapping.patch
+++ b/target/linux/cns3xxx/patches-4.14/093-add-virt-pci-io-mapping.patch
@ -0,0 +1,41 @@
+--- a/arch/arm/mach-cns3xxx/cns3xxx.h
+++ b/arch/arm/mach-cns3xxx/cns3xxx.h
+@@ -162,11 +162,13 @@
+ #define CNS3XXX_L2C_BASE			0x92000000	/* L2 Cache Control */
+ 
+ #define CNS3XXX_PCIE0_MEM_BASE			0xA0000000	/* PCIe Port 0 IO/Memory Space */
+#define CNS3XXX_PCIE0_MEM_BASE_VIRT		0xE0000000
+ 
+ #define CNS3XXX_PCIE0_HOST_BASE			0xAB000000	/* PCIe Port 0 RC Base */
+ #define CNS3XXX_PCIE0_HOST_BASE_VIRT		0xE1000000
+ 
+ #define CNS3XXX_PCIE0_IO_BASE			0xAC000000	/* PCIe Port 0 */
+#define CNS3XXX_PCIE0_IO_BASE_VIRT		0xE2000000
+ 
+ #define CNS3XXX_PCIE0_CFG0_BASE			0xAD000000	/* PCIe Port 0 CFG Type 0 */
+ #define CNS3XXX_PCIE0_CFG0_BASE_VIRT		0xE3000000
+@@ -175,13 +177,16 @@
+ #define CNS3XXX_PCIE0_CFG1_BASE_VIRT		0xE4000000
+ 
+ #define CNS3XXX_PCIE0_MSG_BASE			0xAF000000	/* PCIe Port 0 Message Space */
+#define CNS3XXX_PCIE0_MSG_BASE_VIRT		0xE5000000
+ 
+ #define CNS3XXX_PCIE1_MEM_BASE			0xB0000000	/* PCIe Port 1 IO/Memory Space */
+#define CNS3XXX_PCIE1_MEM_BASE_VIRT		0xE8000000
+ 
+ #define CNS3XXX_PCIE1_HOST_BASE			0xBB000000	/* PCIe Port 1 RC Base */
+ #define CNS3XXX_PCIE1_HOST_BASE_VIRT		0xE9000000
+ 
+ #define CNS3XXX_PCIE1_IO_BASE			0xBC000000	/* PCIe Port 1 */
+#define CNS3XXX_PCIE1_IO_BASE_VIRT		0xEA000000
+ 
+ #define CNS3XXX_PCIE1_CFG0_BASE			0xBD000000	/* PCIe Port 1 CFG Type 0 */
+ #define CNS3XXX_PCIE1_CFG0_BASE_VIRT		0xEB000000
+@@ -190,6 +195,7 @@
+ #define CNS3XXX_PCIE1_CFG1_BASE_VIRT		0xEC000000
+ 
+ #define CNS3XXX_PCIE1_MSG_BASE			0xBF000000	/* PCIe Port 1 Message Space */
+#define CNS3XXX_PCIE1_MSG_BASE_VIRT		0xED000000
+ 
+ /*
+  * Testchip peripheral and fpga gic regions
--- a/target/linux/cns3xxx/patches-4.14/095-gpio_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/095-gpio_support.patch
@ -0,0 +1,67 @@
+--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
+@@ -223,6 +223,10 @@ static void __init cns3420_init(void)
+ 
+ 	cns3xxx_ahci_init();
+ 	cns3xxx_sdhci_init();
+	cns3xxx_gpio_init( 0, 32, CNS3XXX_GPIOA_BASE_VIRT, IRQ_CNS3XXX_GPIOA,
+		NR_IRQS_CNS3XXX);
+	cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, IRQ_CNS3XXX_GPIOB,
+		NR_IRQS_CNS3XXX + 32);
+ 
+ 	pm_power_off = cns3xxx_power_off;
+ }
+--- a/arch/arm/mach-cns3xxx/Kconfig
+++ b/arch/arm/mach-cns3xxx/Kconfig
+@@ -2,6 +2,8 @@ menuconfig ARCH_CNS3XXX
+ 	bool "Cavium Networks CNS3XXX family"
+ 	depends on ARCH_MULTI_V6
+ 	select ARM_GIC
+	select ARCH_REQUIRE_GPIOLIB
+	select GENERIC_IRQ_CHIP
+ 	select HAVE_ARM_SCU if SMP
+ 	select HAVE_ARM_TWD
+ 	select HAVE_SMP
+--- a/arch/arm/mach-cns3xxx/Makefile
+++ b/arch/arm/mach-cns3xxx/Makefile
+@@ -1,7 +1,7 @@
+ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
+ 
+ obj-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx.o
+-cns3xxx-y				+= core.o pm.o
+cns3xxx-y				+= core.o pm.o gpio.o
+ cns3xxx-$(CONFIG_ATAGS)			+= devices.o
+ cns3xxx-$(CONFIG_PCI)			+= pcie.o
+ cns3xxx-$(CONFIG_MACH_CNS3420VB)	+= cns3420vb.o
+--- a/arch/arm/mach-cns3xxx/cns3xxx.h
+++ b/arch/arm/mach-cns3xxx/cns3xxx.h
+@@ -68,8 +68,10 @@
+ #define SMC_PCELL_ID_3_OFFSET			0xFFC
+ 
+ #define CNS3XXX_GPIOA_BASE			0x74000000	/* GPIO port A */
+#define CNS3XXX_GPIOA_BASE_VIRT			0xFB006000
+ 
+ #define CNS3XXX_GPIOB_BASE			0x74800000	/* GPIO port B */
+#define CNS3XXX_GPIOB_BASE_VIRT			0xFB007000
+ 
+ #define CNS3XXX_RTC_BASE			0x75000000	/* Real Time Clock */
+ 
+--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
+@@ -50,6 +50,16 @@ static struct map_desc cns3xxx_io_desc[]
+ 		.pfn		= __phys_to_pfn(CNS3XXX_PM_BASE),
+ 		.length		= SZ_4K,
+ 		.type		= MT_DEVICE,
+	}, {
+		.virtual	= CNS3XXX_GPIOA_BASE_VIRT,
+		.pfn		= __phys_to_pfn(CNS3XXX_GPIOA_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= CNS3XXX_GPIOB_BASE_VIRT,
+		.pfn		= __phys_to_pfn(CNS3XXX_GPIOB_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+ #ifdef CONFIG_PCI
+ 	}, {
+ 		.virtual	= CNS3XXX_PCIE0_HOST_BASE_VIRT,
--- a/target/linux/cns3xxx/patches-4.14/097-l2x0_cmdline_disable.patch
+++ b/target/linux/cns3xxx/patches-4.14/097-l2x0_cmdline_disable.patch
@ -0,0 +1,69 @@
+--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
+@@ -307,13 +307,26 @@ void __init cns3xxx_timer_init(void)
+ 
+ #ifdef CONFIG_CACHE_L2X0
+ 
+-void __init cns3xxx_l2x0_init(void)
+static int cns3xxx_l2x0_enable = 1;
+
+static int __init cns3xxx_l2x0_disable(char *s)
+{
+	cns3xxx_l2x0_enable = 0;
+	return 1;
+}
+__setup("nol2x0", cns3xxx_l2x0_disable);
+
+static int __init cns3xxx_l2x0_init(void)
+ {
+-	void __iomem *base = ioremap(CNS3XXX_L2C_BASE, SZ_4K);
+	void __iomem *base;
+ 	u32 val;
+ 
+	if (!cns3xxx_l2x0_enable)
+		return 0;
+
+	base = ioremap(CNS3XXX_L2C_BASE, SZ_4K);
+ 	if (WARN_ON(!base))
+-		return;
+		return 0;
+ 
+ 	/*
+ 	 * Tag RAM Control register
+@@ -343,7 +356,10 @@ void __init cns3xxx_l2x0_init(void)
+ 
+ 	/* 32 KiB, 8-way, parity disable */
+ 	l2x0_init(base, 0x00500000, 0xfe0f0fff);
+
+	return 0;
+ }
+arch_initcall(cns3xxx_l2x0_init);
+ 
+ #endif /* CONFIG_CACHE_L2X0 */
+ 
+--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
+@@ -217,8 +217,6 @@ static struct platform_device *cns3420_p
+ 
+ static void __init cns3420_init(void)
+ {
+-	cns3xxx_l2x0_init();
+-
+ 	platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));
+ 
+ 	cns3xxx_ahci_init();
+--- a/arch/arm/mach-cns3xxx/core.h
+++ b/arch/arm/mach-cns3xxx/core.h
+@@ -16,12 +16,6 @@
+ extern struct smp_operations cns3xxx_smp_ops;
+ extern void cns3xxx_timer_init(void);
+ 
+-#ifdef CONFIG_CACHE_L2X0
+-void __init cns3xxx_l2x0_init(void);
+-#else
+-static inline void cns3xxx_l2x0_init(void) {}
+-#endif /* CONFIG_CACHE_L2X0 */
+-
+ #ifdef CONFIG_PCI
+ extern void __init cns3xxx_pcie_init_late(void);
+ #else
--- a/target/linux/cns3xxx/patches-4.14/100-laguna_support.patch
+++ b/target/linux/cns3xxx/patches-4.14/100-laguna_support.patch
@ -0,0 +1,46 @@
+--- a/arch/arm/mach-cns3xxx/Kconfig
+++ b/arch/arm/mach-cns3xxx/Kconfig
+@@ -22,4 +22,12 @@ config MACH_CNS3420VB
+ 	  This is a platform with an on-board ARM11 MPCore and has support
+ 	  for USB, USB-OTG, MMC/SD/SDIO, SATA, PCI-E, etc.
+ 
+config MACH_GW2388
+	bool "Support for Gateworks Laguna Platform"
+	help
+	  Include support for the Gateworks Laguna Platform
+
+	  This is a platform with an on-board ARM11 MPCore and has support
+	  for USB, USB-OTG, MMC/SD/SDIO, SATA, PCI-E, I2C, GIG, etc.
+
+ endif
+--- a/arch/arm/mach-cns3xxx/Makefile
+++ b/arch/arm/mach-cns3xxx/Makefile
+@@ -7,3 +7,5 @@ cns3xxx-$(CONFIG_PCI)			+= pcie.o
+ cns3xxx-$(CONFIG_MACH_CNS3420VB)	+= cns3420vb.o
+ cns3xxx-$(CONFIG_SMP)			+= platsmp.o headsmp.o cns3xxx_fiq.o
+ cns3xxx-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
+cns3xxx-$(CONFIG_MACH_GW2388)		+= laguna.o
+
+--- a/arch/arm/mach-cns3xxx/devices.c
+++ b/arch/arm/mach-cns3xxx/devices.c
+@@ -16,6 +16,7 @@
+ #include <linux/compiler.h>
+ #include <linux/dma-mapping.h>
+ #include <linux/platform_device.h>
+#include <asm/mach-types.h>
+ #include "cns3xxx.h"
+ #include "pm.h"
+ #include "core.h"
+@@ -101,7 +102,11 @@ void __init cns3xxx_sdhci_init(void)
+ 	u32 gpioa_pins = __raw_readl(gpioa);
+ 
+ 	/* MMC/SD pins share with GPIOA */
+-	gpioa_pins |= 0x1fff0004;
+	if (machine_is_gw2388()) {
+		gpioa_pins |= 0x1fff0000;
+	} else {
+		gpioa_pins |= 0x1fff0004;
+	}
+ 	__raw_writel(gpioa_pins, gpioa);
+ 
+ 	cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SDIO));
--- a/target/linux/cns3xxx/patches-4.14/101-laguna_sdhci_card_detect.patch
+++ b/target/linux/cns3xxx/patches-4.14/101-laguna_sdhci_card_detect.patch
@ -0,0 +1,14 @@
+--- a/drivers/mmc/host/sdhci-cns3xxx.c
+++ b/drivers/mmc/host/sdhci-cns3xxx.c
+@@ -88,9 +88,9 @@ static const struct sdhci_pltfm_data sdh
+ 	.ops = &sdhci_cns3xxx_ops,
+ 	.quirks = SDHCI_QUIRK_BROKEN_DMA |
+ 		  SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+-		  SDHCI_QUIRK_INVERTED_WRITE_PROTECT |
+ 		  SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
+-		  SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
+		  SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
+		  SDHCI_QUIRK_BROKEN_CARD_DETECTION,
+ };
+ 
+ static int sdhci_cns3xxx_probe(struct platform_device *pdev)
--- a/target/linux/cns3xxx/patches-4.14/110-pci_isolated_interrupts.patch
+++ b/target/linux/cns3xxx/patches-4.14/110-pci_isolated_interrupts.patch
@ -0,0 +1,95 @@
+--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
+@@ -18,6 +18,7 @@
+ #include <linux/io.h>
+ #include <linux/ioport.h>
+ #include <linux/interrupt.h>
+#include <linux/irq.h>
+ #include <linux/ptrace.h>
+ #include <asm/mach/map.h>
+ #include "cns3xxx.h"
+@@ -27,7 +28,7 @@ struct cns3xxx_pcie {
+ 	void __iomem *host_regs; /* PCI config registers for host bridge */
+ 	void __iomem *cfg0_regs; /* PCI Type 0 config registers */
+ 	void __iomem *cfg1_regs; /* PCI Type 1 config registers */
+-	unsigned int irqs[2];
+	unsigned int irqs[5];
+ 	struct resource res_io;
+ 	struct resource res_mem;
+ 	int port;
+@@ -95,7 +96,7 @@ static inline int check_master_abort(str
+ 		void __iomem *host_base;
+ 		u32 sreg, ereg;
+ 
+-		host_base = (void __iomem *) cnspci->cfg_bases[CNS3XXX_HOST_TYPE].virtual;
+		host_base = (void __iomem *) cnspci->host_regs;
+ 		sreg = __raw_readw(host_base + 0x6) & 0xF900;
+ 		ereg = __raw_readl(host_base + 0x104); // Uncorrectable Error Status Reg
+ 
+@@ -209,7 +210,7 @@ static struct pci_ops cns3xxx_pcie_ops =
+ static int cns3xxx_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+ {
+ 	struct cns3xxx_pcie *cnspci = pdev_to_cnspci(dev);
+-	int irq = cnspci->irqs[!!dev->bus->number];
+	int irq = cnspci->irqs[!!dev->bus->number + pin - 1];
+ 
+ 	pr_info("PCIe map irq: %04d:%02x:%02x.%02x slot %d, pin %d, irq: %d\n",
+ 		pci_domain_nr(dev->bus), dev->bus->number, PCI_SLOT(dev->devfn),
+@@ -235,7 +236,13 @@ static struct cns3xxx_pcie cns3xxx_pcie[
+ 			.end = CNS3XXX_PCIE0_HOST_BASE - 1, /* 176 MiB */
+ 			.flags = IORESOURCE_MEM,
+ 		},
+-		.irqs = { IRQ_CNS3XXX_PCIE0_RC, IRQ_CNS3XXX_PCIE0_DEVICE, },
+		.irqs = {
+			IRQ_CNS3XXX_PCIE0_RC,
+			IRQ_CNS3XXX_PCIE0_DEVICE,
+			IRQ_CNS3XXX_PCIE0_DEVICE,
+			IRQ_CNS3XXX_PCIE0_DEVICE,
+			IRQ_CNS3XXX_PCIE0_DEVICE,
+		},
+ 		.port = 0,
+ 	},
+ 	[1] = {
+@@ -254,7 +261,13 @@ static struct cns3xxx_pcie cns3xxx_pcie[
+ 			.end = CNS3XXX_PCIE1_HOST_BASE - 1, /* 176 MiB */
+ 			.flags = IORESOURCE_MEM,
+ 		},
+-		.irqs = { IRQ_CNS3XXX_PCIE1_RC, IRQ_CNS3XXX_PCIE1_DEVICE, },
+		.irqs = {
+			IRQ_CNS3XXX_PCIE1_RC,
+			IRQ_CNS3XXX_PCIE1_DEVICE,
+			IRQ_CNS3XXX_PCIE1_DEVICE,
+			IRQ_CNS3XXX_PCIE1_DEVICE,
+			IRQ_CNS3XXX_PCIE1_DEVICE,
+		},
+ 		.port = 1,
+ 	},
+ };
+@@ -346,6 +359,14 @@ static int cns3xxx_pcie_abort_handler(un
+ 	return 0;
+ }
+ 
+void __init cns3xxx_pcie_set_irqs(int bus, int *irqs)
+{
+	int i;
+
+	for (i = 0; i < 4; i++)
+		cns3xxx_pcie[bus].irqs[i + 1] = irqs[i];
+}
+
+ void __init cns3xxx_pcie_init_late(void)
+ {
+ 	int i;
+--- a/arch/arm/mach-cns3xxx/core.h
+++ b/arch/arm/mach-cns3xxx/core.h
+@@ -18,8 +18,10 @@ extern void cns3xxx_timer_init(void);
+ 
+ #ifdef CONFIG_PCI
+ extern void __init cns3xxx_pcie_init_late(void);
+extern void __init cns3xxx_pcie_set_irqs(int bus, int *irqs);
+ #else
+ static inline void __init cns3xxx_pcie_init_late(void) {}
+static inline void cns3xxx_pcie_set_irqs(int bus, int *irqs) {}
+ #endif
+ 
+ void __init cns3xxx_map_io(void);
--- a/target/linux/cns3xxx/patches-4.14/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch
+++ b/target/linux/cns3xxx/patches-4.14/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch
@ -0,0 +1,23 @@
+--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
+@@ -2015,7 +2015,8 @@ static void pcie_write_mrrs(struct pci_d
+ 	/* In the "safe" case, do not configure the MRRS.  There appear to be
+ 	 * issues with setting MRRS to 0 on a number of devices.
+ 	 */
+-	if (pcie_bus_config != PCIE_BUS_PERFORMANCE)
+	if (pcie_bus_config != PCIE_BUS_PERFORMANCE &&
+	    pcie_bus_config != PCIE_BUS_PEER2PEER)
+ 		return;
+ 
+ 	/* For Max performance, the MRRS must be set to the largest supported
+--- a/include/linux/pci.h
+++ b/include/linux/pci.h
+@@ -783,7 +783,7 @@ enum pcie_bus_config_types {
+ 	PCIE_BUS_DEFAULT,	/* ensure MPS matches upstream bridge */
+ 	PCIE_BUS_SAFE,		/* use largest MPS boot-time devices support */
+ 	PCIE_BUS_PERFORMANCE,	/* use MPS and MRRS for best performance */
+-	PCIE_BUS_PEER2PEER,	/* set MPS = 128 for all devices */
+	PCIE_BUS_PEER2PEER,	/* set MPS and MRSS to 128 for all devices */
+ };
+ 
+ extern enum pcie_bus_config_types pcie_bus_config;
--- a/target/linux/cns3xxx/patches-4.14/200-broadcom_phy_reinit.patch
+++ b/target/linux/cns3xxx/patches-4.14/200-broadcom_phy_reinit.patch
@ -0,0 +1,14 @@
+--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
+@@ -420,6 +420,11 @@ static int bcm5481_config_aneg(struct ph
+ 		/* Write bits 14:0. */
+ 		reg |= (1 << 15);
+ 		phy_write(phydev, 0x18, reg);
+	} else {
+		phy_write(phydev, 0x18, 0xf1e7);
+		phy_write(phydev, 0x1c, 0x8e00);
+
+		phy_write(phydev, 0x1c, 0xa41f);
+ 	}
+ 
+ 	if (of_property_read_bool(np, "enet-phy-lane-swap")) {
--- a/target/linux/cns3xxx/patches-4.14/210-dwc2_defaults.patch
+++ b/target/linux/cns3xxx/patches-4.14/210-dwc2_defaults.patch
@ -0,0 +1,47 @@
+--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
+@@ -308,6 +308,34 @@ static int __dwc2_lowlevel_hw_enable(str
+ 	return ret;
+ }
+ 
+static const struct dwc2_core_params params_cns3xxx = {
+	.otg_cap			= 2,	/* non-HNP/non-SRP capable */
+	.otg_ver			= 0,	/* 1.3 */
+	.dma_enable			= 1,
+	.dma_desc_enable		= 0,
+	.speed				= 0,	/* High Speed */
+	.enable_dynamic_fifo		= 1,
+	.en_multiple_tx_fifo		= 1,
+	.host_rx_fifo_size		= 658,	/* 774 DWORDs */
+	.host_nperio_tx_fifo_size	= 128,	/* 256 DWORDs */
+	.host_perio_tx_fifo_size	= 658,	/* 512 DWORDs */
+	.max_transfer_size		= 65535,
+	.max_packet_count		= 511,
+	.host_channels			= 16,
+	.phy_type			= 1,	/* UTMI */
+	.phy_utmi_width			= 16,	/* 8 bits */
+	.phy_ulpi_ddr			= 0,	/* Single */
+	.phy_ulpi_ext_vbus		= 0,
+	.i2c_enable			= 0,
+	.ulpi_fs_ls			= 0,
+	.host_support_fs_ls_low_power	= 0,
+	.host_ls_low_power_phy_clk	= 0,	/* 48 MHz */
+	.ts_dline			= 0,
+	.reload_ctl			= 0,
+	.ahbcfg				= 0x10,
+	.uframe_sched			= 0,
+};
+
+ /**
+  * dwc2_lowlevel_hw_enable - enable platform lowlevel hw resources
+  * @hsotg: The driver state
+@@ -552,6 +580,9 @@ static int dwc2_driver_probe(struct plat
+ 		/* Default all params to autodetect */
+ 		dwc2_set_all_params(&defparams, -1);
+ 		params = &defparams;
+#ifdef CONFIG_ARCH_CNS3XXX
+		params = &params_cns3xxx;
+#endif
+ 
+ 		/*
+ 		 * Disable descriptor dma mode by default as the HW can support