linux: add support of Synopsys ARCHS38-based boards

This patch introduces support of new boards with ARC HS38 cores.

ARC HS38 is a new generation of ARC cores which utilize ARCv2 ISA.
As with ARC770 we're addind support for 2 boards for now:

 [1] Synopsys SDP board (AXS103)
     This is the same base-board as in AXS101 but with
     FPGA-based CPU-tile where ARCHs38 core is implemented.

 [2] nSIM
     Again this is the same simulation engine but configured for
     new instruction set and features of new CPU.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Jo-Philipp Wich <jow@openwrt.org>
Cc: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 48740

diff --git a/include/target.mk b/include/target.mk
index 54ee463477e19b772507f63a2ae81182a0677d16..42febfca7b619adb666157a10a7edd7dc178b2d2 100644 (file)
--- a/include/target.mk
+++ b/include/target.mk
@@ -265,6 +265,7 @@ ifeq ($(DUMP),1)
     CPU_TYPE ?= arc700
     CPU_CFLAGS += -matomic
     CPU_CFLAGS_arc700 = -marc700
     CPU_TYPE ?= arc700
     CPU_CFLAGS += -matomic
     CPU_CFLAGS_arc700 = -marc700

+    CPU_CFLAGS_archs = -marchs

   endif
   DEFAULT_CFLAGS=$(strip $(CPU_CFLAGS) $(CPU_CFLAGS_$(CPU_TYPE)) $(CPU_CFLAGS_$(CPU_SUBTYPE)))
 endif
   endif
   DEFAULT_CFLAGS=$(strip $(CPU_CFLAGS) $(CPU_CFLAGS_$(CPU_TYPE)) $(CPU_CFLAGS_$(CPU_SUBTYPE)))
 endif

diff --git a/target/linux/archs38/Makefile b/target/linux/archs38/Makefile
new file mode 100644 (file)
index 0000000..166d3d5
--- /dev/null
+++ b/target/linux/archs38/Makefile
@@ -0,0 +1,26 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+ARCH:=arc
+CPU_TYPE:=archs
+BOARD:=archs38
+BOARDNAME:=Synopsys DesignWare ARC HS38
+MAINTAINER:=Alexey Brodkin <abrodkin@synopsys.com>
+SUBTARGETS:=generic
+
+KERNEL_PATCHVER:=4.4
+
+DEVICE_TYPE:=developerboard
+
+include $(INCLUDE_DIR)/target.mk
+
+define Target/Description
+       Synopsys DesignWare boards
+endef
+
+$(eval $(call BuildTarget))

diff --git a/target/linux/archs38/base-files.mk b/target/linux/archs38/base-files.mk
new file mode 100644 (file)
index 0000000..fdd2c71
--- /dev/null
+++ b/target/linux/archs38/base-files.mk
@@ -0,0 +1,3 @@
+define Package/base-files/install-target
+       rm -f $(1)/etc/config/network
+endef

diff --git a/target/linux/archs38/base-files/etc/board.d/02_network b/target/linux/archs38/base-files/etc/board.d/02_network
new file mode 100755 (executable)
index 0000000..da86ee0
--- /dev/null
+++ b/target/linux/archs38/base-files/etc/board.d/02_network
@@ -0,0 +1,19 @@
+#!/bin/sh
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+
+. /lib/arc.sh
+. /lib/functions/uci-defaults.sh
+
+board_config_update
+
+case "$( arc_board_name )" in
+"arc-sdp"*)
+       ucidef_set_interface_lan "eth0" "dhcp"
+       ;;
+esac
+
+board_config_flush
+
+exit 0

diff --git a/target/linux/archs38/base-files/lib/arc.sh b/target/linux/archs38/base-files/lib/arc.sh
new file mode 100644 (file)
index 0000000..99d0077
--- /dev/null
+++ b/target/linux/archs38/base-files/lib/arc.sh
@@ -0,0 +1,50 @@
+#!/bin/sh
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+
+# defaults
+ARC_BOARD_NAME="generic"
+ARC_BOARD_MODEL="Generic ARC board"
+
+arc_board_detect() {
+       local board
+       local model
+       local compatible
+
+       [ -e "/tmp/sysinfo/" ] || mkdir -p "/tmp/sysinfo/"
+
+       model="$( cat /proc/device-tree/model )"
+       compatible="$( cat /proc/device-tree/compatible )"
+
+       case "$compatible" in
+       "snps,axs103""snps,arc-sdp")
+               board="arc-sdp";
+               ;;
+       "snps,nsim_hs")
+               board="arc-nsim";
+               ;;
+       esac
+
+       if [ "$board" != "" ]; then
+               ARC_BOARD_NAME="$board"
+       fi
+
+       if [ "$model" != "" ]; then
+               ARC_BOARD_MODEL="$model"
+       fi
+
+       echo "$ARC_BOARD_NAME" > /tmp/sysinfo/board_name
+       echo "$ARC_BOARD_MODEL" > /tmp/sysinfo/model
+       echo "Detected $ARC_BOARD_NAME // $ARC_BOARD_MODEL"
+}
+
+arc_board_name() {
+       local name
+
+       [ -f /tmp/sysinfo/board_name ] && name="$(cat /tmp/sysinfo/board_name)"
+       [ -z "$name" ] && name="unknown"
+
+       echo "$name"
+}
+

diff --git a/target/linux/archs38/base-files/lib/preinit/01_preinit_arc.sh b/target/linux/archs38/base-files/lib/preinit/01_preinit_arc.sh
new file mode 100644 (file)
index 0000000..192c91b
--- /dev/null
+++ b/target/linux/archs38/base-files/lib/preinit/01_preinit_arc.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+do_arc() {
+        . /lib/arc.sh
+
+        arc_board_detect
+}
+
+boot_hook_add preinit_main do_arc

diff --git a/target/linux/archs38/config-4.4 b/target/linux/archs38/config-4.4
new file mode 100644 (file)
index 0000000..9ea33c6
--- /dev/null
+++ b/target/linux/archs38/config-4.4
@@ -0,0 +1,183 @@
+# CONFIG_16KSTACKS is not set
+CONFIG_ARC=y
+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
+# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
+# CONFIG_ARCH_HAS_SG_CHAIN is not set
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARC_BUILTIN_DTB_NAME=""
+CONFIG_ARC_CACHE=y
+CONFIG_ARC_CACHE_LINE_SHIFT=6
+CONFIG_ARC_CACHE_PAGES=y
+# CONFIG_ARC_CANT_LLSC is not set
+CONFIG_ARC_CPU_HS=y
+CONFIG_ARC_CURR_IN_REG=y
+CONFIG_ARC_DBG=y
+# CONFIG_ARC_DBG_TLB_MISS_COUNT is not set
+# CONFIG_ARC_DBG_TLB_PARANOIA is not set
+CONFIG_ARC_DW2_UNWIND=y
+CONFIG_ARC_HAS_COH_CACHES=y
+CONFIG_ARC_HAS_DCACHE=y
+# CONFIG_ARC_HAS_DCCM is not set
+CONFIG_ARC_HAS_DIV_REM=y
+CONFIG_ARC_HAS_GRTC=y
+CONFIG_ARC_HAS_HW_MPY=y
+CONFIG_ARC_HAS_ICACHE=y
+# CONFIG_ARC_HAS_ICCM is not set
+CONFIG_ARC_HAS_LL64=y
+CONFIG_ARC_HAS_LLSC=y
+# CONFIG_ARC_HAS_PAE40 is not set
+# CONFIG_ARC_HAS_REENTRANT_IRQ_LV2 is not set
+CONFIG_ARC_HAS_SWAPE=y
+# CONFIG_ARC_IPI_DBG is not set
+CONFIG_ARC_MCIP=y
+# CONFIG_ARC_METAWARE_HLINK is not set
+CONFIG_ARC_MMU_V4=y
+CONFIG_ARC_NUMBER_OF_INTERRUPTS=32
+# CONFIG_ARC_PAGE_SIZE_16K is not set
+# CONFIG_ARC_PAGE_SIZE_4K is not set
+CONFIG_ARC_PAGE_SIZE_8K=y
+CONFIG_ARC_PLAT_AXS10X=y
+CONFIG_ARC_PLAT_SIM=y
+# CONFIG_ARC_PLAT_TB10X is not set
+# CONFIG_ARC_SMP_HALT_ON_RESET is not set
+CONFIG_ARC_STAR_9000923308=y
+# CONFIG_ARC_UBOOT_SUPPORT is not set
+CONFIG_AXS103=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_COMMON_CLK=y
+# CONFIG_CPU_BIG_ENDIAN is not set
+CONFIG_CPU_RMAP=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_DTC=y
+CONFIG_DWMAC_GENERIC=y
+# CONFIG_DWMAC_SUNXI is not set
+CONFIG_DW_APB_ICTL=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CSUM=y
+CONFIG_GENERIC_FIND_FIRST_BIT=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PENDING_IRQ=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+# CONFIG_GEN_RTC is not set
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DEVRES=y
+CONFIG_GPIO_DWAPB=y
+CONFIG_GPIO_GENERIC=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+# CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_FUTEX_CMPXCHG=y
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
+CONFIG_HAVE_IOREMAP_PROT=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_WORK=y
+# CONFIG_ISA_ARCOMPACT is not set
+CONFIG_ISA_ARCV2=y
+CONFIG_KALLSYMS=y
+CONFIG_LIBFDT=y
+CONFIG_LINUX_LINK_BASE=0x80000000
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+CONFIG_MDIO_BOARDINFO=y
+CONFIG_MFD_SYSCON=y
+CONFIG_MMC=y
+CONFIG_MMC_DW=y
+# CONFIG_MMC_DW_EXYNOS is not set
+# CONFIG_MMC_DW_K3 is not set
+CONFIG_MMC_DW_PLTFM=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NATIONAL_PHY=y
+# CONFIG_NET_CADENCE is not set
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NET_PTP_CLASSIFY=y
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_QUALCOMM is not set
+# CONFIG_NET_VENDOR_ROCKER is not set
+# CONFIG_NET_VENDOR_SAMSUNG is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_NO_BOOTMEM=y
+CONFIG_NO_IOPORT_MAP=y
+CONFIG_NR_CPUS=4
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_MTD=y
+CONFIG_OF_NET=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+CONFIG_PPS=y
+CONFIG_PREEMPT=y
+CONFIG_PREEMPT_COUNT=y
+# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_RCU=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_RATIONAL=y
+# CONFIG_RCU_BOOST is not set
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RFS_ACCEL=y
+CONFIG_RPS=y
+# CONFIG_RTC is not set
+# CONFIG_SCHED_INFO is not set
+# CONFIG_SCSI_DMA is not set
+CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
+CONFIG_SERIAL_8250_DW=y
+# CONFIG_SERIAL_8250_FSL is not set
+CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_ARC=y
+CONFIG_SERIAL_ARC_CONSOLE=y
+CONFIG_SERIAL_ARC_NR_PORTS=1
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SMP=y
+CONFIG_SRCU=y
+CONFIG_STACKTRACE=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+# CONFIG_SUNXI_SRAM is not set
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_UNINLINE_SPIN_UNLOCK=y
+CONFIG_USB_SUPPORT=y
+CONFIG_XPS=y
+CONFIG_ZONE_DMA_FLAG=0

diff --git a/target/linux/archs38/dts/axc003_idu.dtsi b/target/linux/archs38/dts/axc003_idu.dtsi
new file mode 100644 (file)
index 0000000..06a9f29
--- /dev/null
+++ b/target/linux/archs38/dts/axc003_idu.dtsi
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2014, 2015 Synopsys, Inc. (www.synopsys.com)
+ *
+ * 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 Free Software Foundation.
+ */
+
+/*
+ * Device tree for AXC003 CPU card: HS38x2 (Dual Core) with IDU intc
+ */
+
+/ {
+       compatible = "snps,arc";
+       clock-frequency = <90000000>;
+       #address-cells = <1>;
+       #size-cells = <1>;
+
+       cpu_card {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               ranges = <0x00000000 0xf0000000 0x10000000>;
+
+               cpu_intc: archs-intc@cpu {
+                       compatible = "snps,archs-intc";
+                       interrupt-controller;
+                       #interrupt-cells = <1>;
+               };
+
+               idu_intc: idu-interrupt-controller {
+                       compatible = "snps,archs-idu-intc";
+                       interrupt-controller;
+                       interrupt-parent = <&cpu_intc>;
+
+                       /*
+                        * <hwirq  distribution>
+                        * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
+                        */
+                       #interrupt-cells = <2>;
+
+                       /*
+                        * upstream irqs to core intc - downstream these are
+                        * "COMMON" irq 0,1..
+                        */
+                       interrupts = <24 25>;
+               };
+
+               /*
+                * this GPIO block ORs all interrupts on CPU card (creg,..)
+                * to uplink only 1 IRQ to ARC core intc
+                */
+               dw-apb-gpio@0x2000 {
+                       compatible = "snps,dw-apb-gpio";
+                       reg = < 0x2000 0x80 >;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       ictl_intc: gpio-controller@0 {
+                               compatible = "snps,dw-apb-gpio-port";
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               snps,nr-gpios = <30>;
+                               reg = <0>;
+                               interrupt-controller;
+                               #interrupt-cells = <2>;
+                               interrupt-parent = <&idu_intc>;
+
+                               /*
+                                * cmn irq 1 -> cpu irq 25
+                                * Distribute to cpu0 only
+                                */
+                               interrupts = <1 1>;
+                       };
+               };
+
+               debug_uart: dw-apb-uart@0x5000 {
+                       compatible = "snps,dw-apb-uart";
+                       reg = <0x5000 0x100>;
+                       clock-frequency = <33333000>;
+                       interrupt-parent = <&ictl_intc>;
+                       interrupts = <2 4>;
+                       baud = <115200>;
+                       reg-shift = <2>;
+                       reg-io-width = <4>;
+               };
+
+               arcpct0: pct {
+                       compatible = "snps,archs-pct";
+                       #interrupt-cells = <1>;
+                       interrupt-parent = <&cpu_intc>;
+                       interrupts = <20>;
+               };
+       };
+
+       /*
+        * This INTC is actually connected to DW APB GPIO
+        * which acts as a wire between MB INTC and CPU INTC.
+        * GPIO INTC is configured in platform init code
+        * and here we mimic direct connection from MB INTC to
+        * CPU INTC, thus we set "interrupts = <0 1>" instead of
+        * "interrupts = <12>"
+        *
+        * This intc actually resides on MB, but we move it here to
+        * avoid duplicating the MB dtsi file given that IRQ from
+        * this intc to cpu intc are different for axs101 and axs103
+        */
+       mb_intc: dw-apb-ictl@0xe0012000 {
+               #interrupt-cells = <1>;
+               compatible = "snps,dw-apb-ictl";
+               reg = < 0xe0012000 0x200 >;
+               interrupt-controller;
+               interrupt-parent = <&idu_intc>;
+               interrupts = <0 1>;     /* cmn irq 0 -> cpu irq 24
+                                          distribute to cpu0 only */
+       };
+
+       memory {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges = <0x00000000 0x80000000 0x40000000>;
+               device_type = "memory";
+               reg = <0x80000000 0x20000000>;  /* 512MiB */
+       };
+};

diff --git a/target/linux/archs38/dts/axs103_idu.dts b/target/linux/archs38/dts/axs103_idu.dts
new file mode 100644 (file)
index 0000000..9c4bf0f
--- /dev/null
+++ b/target/linux/archs38/dts/axs103_idu.dts
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
+ *
+ * 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 Free Software Foundation.
+ */
+
+/*
+ * Device Tree for AXS103 SDP with AXS10X Main Board and
+ * AXC003 FPGA Card (with SMP bitfile)
+ */
+/dts-v1/;
+
+/include/ "axc003_idu.dtsi"
+/include/ "axs10x_mb.dtsi"
+
+/ {
+       model = "Synopsys AXS103 Development Board";
+       compatible = "snps,axs103", "snps,arc-sdp";
+
+       chosen {
+               bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=ttyS3,115200n8";
+       };
+};

diff --git a/target/linux/archs38/dts/axs10x_mb.dtsi b/target/linux/archs38/dts/axs10x_mb.dtsi
new file mode 100644 (file)
index 0000000..44a578c
--- /dev/null
+++ b/target/linux/archs38/dts/axs10x_mb.dtsi
@@ -0,0 +1,225 @@
+/*
+ * Support for peripherals on the AXS10x mainboard
+ *
+ * Copyright (C) 2013-15 Synopsys, Inc. (www.synopsys.com)
+ *
+ * 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 Free Software Foundation.
+ */
+
+/ {
+       axs10x_mb {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges = <0x00000000 0xe0000000 0x10000000>;
+               interrupt-parent = <&mb_intc>;
+
+               clocks {
+                       i2cclk: i2cclk {
+                               compatible = "fixed-clock";
+                               clock-frequency = <50000000>;
+                               #clock-cells = <0>;
+                       };
+
+                       apbclk: apbclk {
+                               compatible = "fixed-clock";
+                               clock-frequency = <50000000>;
+                               #clock-cells = <0>;
+                       };
+
+                       mmcclk: mmcclk {
+                               compatible = "fixed-clock";
+                               clock-frequency = <50000000>;
+                               #clock-cells = <0>;
+                       };
+               };
+
+               ethernet@0x18000 {
+                       #interrupt-cells = <1>;
+                       compatible = "snps,dwmac";
+                       reg = < 0x18000 0x2000 >;
+                       interrupts = < 4 >;
+                       interrupt-names = "macirq";
+                       phy-mode = "rgmii";
+                       snps,pbl = < 32 >;
+                       clocks = <&apbclk>;
+                       clock-names = "stmmaceth";
+                       max-speed = <100>;
+               };
+
+               ehci@0x40000 {
+                       compatible = "generic-ehci";
+                       reg = < 0x40000 0x100 >;
+                       interrupts = < 8 >;
+               };
+
+               ohci@0x60000 {
+                       compatible = "generic-ohci";
+                       reg = < 0x60000 0x100 >;
+                       interrupts = < 8 >;
+               };
+
+               /*
+                * According to DW Mobile Storage databook it is required
+                * to use  "Hold Register" if card is enumerated in SDR12 or
+                * SDR25 modes.
+                *
+                * Utilization of "Hold Register" is already implemented via
+                * dw_mci_pltfm_prepare_command() which in its turn gets
+                * used through dw_mci_drv_data->prepare_command call-back.
+                * This call-back is used in Altera Socfpga platform and so
+                * we may reuse it saying that we're compatible with their
+                * "altr,socfpga-dw-mshc".
+                *
+                * Most probably "Hold Register" utilization is platform-
+                * independent requirement which means that single unified
+                * "snps,dw-mshc" should be enough for all users of DW MMC once
+                * dw_mci_pltfm_prepare_command() is used in generic platform
+                * code.
+                */
+               mmc@0x15000 {
+                       compatible = "altr,socfpga-dw-mshc";
+                       reg = < 0x15000 0x400 >;
+                       num-slots = < 1 >;
+                       fifo-depth = < 16 >;
+                       card-detect-delay = < 200 >;
+                       clocks = <&apbclk>, <&mmcclk>;
+                       clock-names = "biu", "ciu";
+                       interrupts = < 7 >;
+                       bus-width = < 4 >;
+               };
+
+               uart@0x20000 {
+                       compatible = "snps,dw-apb-uart";
+                       reg = <0x20000 0x100>;
+                       clock-frequency = <33333333>;
+                       interrupts = <17>;
+                       baud = <115200>;
+                       reg-shift = <2>;
+                       reg-io-width = <4>;
+               };
+
+               uart@0x21000 {
+                       compatible = "snps,dw-apb-uart";
+                       reg = <0x21000 0x100>;
+                       clock-frequency = <33333333>;
+                       interrupts = <18>;
+                       baud = <115200>;
+                       reg-shift = <2>;
+                       reg-io-width = <4>;
+               };
+
+               /* UART muxed with USB data port (ttyS3) */
+               uart@0x22000 {
+                       compatible = "snps,dw-apb-uart";
+                       reg = <0x22000 0x100>;
+                       clock-frequency = <33333333>;
+                       interrupts = <19>;
+                       baud = <115200>;
+                       reg-shift = <2>;
+                       reg-io-width = <4>;
+               };
+
+               i2c@0x1d000 {
+                       compatible = "snps,designware-i2c";
+                       reg = <0x1d000 0x100>;
+                       clock-frequency = <400000>;
+                       clocks = <&i2cclk>;
+                       interrupts = <14>;
+               };
+
+               i2c@0x1e000 {
+                       compatible = "snps,designware-i2c";
+                       reg = <0x1e000 0x100>;
+                       clock-frequency = <400000>;
+                       clocks = <&i2cclk>;
+                       interrupts = <15>;
+               };
+
+               i2c@0x1f000 {
+                       compatible = "snps,designware-i2c";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0x1f000 0x100>;
+                       clock-frequency = <400000>;
+                       clocks = <&i2cclk>;
+                       interrupts = <16>;
+
+                       eeprom@0x54{
+                               compatible = "24c01";
+                               reg = <0x54>;
+                               pagesize = <0x8>;
+                       };
+
+                       eeprom@0x57{
+                               compatible = "24c04";
+                               reg = <0x57>;
+                               pagesize = <0x8>;
+                       };
+               };
+
+               gpio0:gpio@13000 {
+                       compatible = "snps,dw-apb-gpio";
+                       reg = <0x13000 0x1000>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       gpio0_banka: gpio-controller@0 {
+                               compatible = "snps,dw-apb-gpio-port";
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               snps,nr-gpios = <32>;
+                               reg = <0>;
+                       };
+
+                       gpio0_bankb: gpio-controller@1 {
+                               compatible = "snps,dw-apb-gpio-port";
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               snps,nr-gpios = <8>;
+                               reg = <1>;
+                       };
+
+                       gpio0_bankc: gpio-controller@2 {
+                               compatible = "snps,dw-apb-gpio-port";
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               snps,nr-gpios = <8>;
+                               reg = <2>;
+                       };
+               };
+
+               gpio1:gpio@14000 {
+                       compatible = "snps,dw-apb-gpio";
+                       reg = <0x14000 0x1000>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       gpio1_banka: gpio-controller@0 {
+                               compatible = "snps,dw-apb-gpio-port";
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               snps,nr-gpios = <30>;
+                               reg = <0>;
+                       };
+
+                       gpio1_bankb: gpio-controller@1 {
+                               compatible = "snps,dw-apb-gpio-port";
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               snps,nr-gpios = <10>;
+                               reg = <1>;
+                       };
+
+                       gpio1_bankc: gpio-controller@2 {
+                               compatible = "snps,dw-apb-gpio-port";
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               snps,nr-gpios = <8>;
+                               reg = <2>;
+                       };
+               };
+       };
+};

diff --git a/target/linux/archs38/dts/nsim_hs_idu.dts b/target/linux/archs38/dts/nsim_hs_idu.dts
new file mode 100644 (file)
index 0000000..75f539b
--- /dev/null
+++ b/target/linux/archs38/dts/nsim_hs_idu.dts
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
+ *
+ * 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 Free Software Foundation.
+ */
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+       model = "Synopsys ARC HS38 nSIM simulator";
+       compatible = "snps,nsim_hs";
+       interrupt-parent = <&core_intc>;
+
+       chosen {
+               bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
+       };
+
+       aliases {
+               serial0 = &arcuart0;
+       };
+
+       fpga {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               /* child and parent address space 1:1 mapped */
+               ranges;
+
+               core_intc: core-interrupt-controller {
+                       compatible = "snps,archs-intc";
+                       interrupt-controller;
+                       #interrupt-cells = <1>;
+               };
+
+               idu_intc: idu-interrupt-controller {
+                       compatible = "snps,archs-idu-intc";
+                       interrupt-controller;
+                       interrupt-parent = <&core_intc>;
+
+                       /*
+                        * <hwirq  distribution>
+                        * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
+                        */
+                       #interrupt-cells = <2>;
+
+                       /*
+                        * upstream irqs to core intc - downstream these are
+                        * "COMMON" irq 0,1..
+                        */
+                       interrupts = <24 25 26 27 28 29 30 31>;
+               };
+
+               arcuart0: serial@c0fc1000 {
+                       compatible = "snps,arc-uart";
+                       reg = <0xc0fc1000 0x100>;
+                       interrupt-parent = <&idu_intc>;
+                       interrupts = <0 0>;
+                       clock-frequency = <80000000>;
+                       current-speed = <115200>;
+                       status = "okay";
+               };
+
+               arcpct0: pct {
+                       compatible = "snps,archs-pct";
+                       #interrupt-cells = <1>;
+                       interrupts = <20>;
+               };
+       };
+};

diff --git a/target/linux/archs38/dts/skeleton.dtsi b/target/linux/archs38/dts/skeleton.dtsi
new file mode 100644 (file)
index 0000000..296d371
--- /dev/null
+++ b/target/linux/archs38/dts/skeleton.dtsi
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * 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 Free Software Foundation.
+ */
+
+/*
+ * Skeleton device tree; the bare minimum needed to boot; just include and
+ * add a compatible value.
+ */
+
+/ {
+       compatible = "snps,arc";
+       clock-frequency = <80000000>;   /* 80 MHZ */
+       #address-cells = <1>;
+       #size-cells = <1>;
+       chosen { };
+       aliases { };
+
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               cpu@0 {
+                       device_type = "cpu";
+                       compatible = "snps,arc770d";
+                       reg = <0>;
+               };
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0x80000000 0x10000000>;  /* 256M */
+       };
+};

diff --git a/target/linux/archs38/generic/profiles/00-default.mk b/target/linux/archs38/generic/profiles/00-default.mk
new file mode 100644 (file)
index 0000000..10edb88
--- /dev/null
+++ b/target/linux/archs38/generic/profiles/00-default.mk
@@ -0,0 +1,16 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define Profile/Default
+       NAME:=Default Profile (all drivers)
+       PACKAGES:= kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-mmc kmod-sdhci
+endef
+
+define Profile/Default/Description
+       Default package set compatible with most boards.
+endef
+$(eval $(call Profile,Default))

diff --git a/target/linux/archs38/generic/profiles/01-minimal.mk b/target/linux/archs38/generic/profiles/01-minimal.mk
new file mode 100644 (file)
index 0000000..fe8d8c3
--- /dev/null
+++ b/target/linux/archs38/generic/profiles/01-minimal.mk
@@ -0,0 +1,15 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define Profile/Minimal
+       NAME:=Minimal Profile (no drivers)
+endef
+
+define Profile/Minimal/Description
+       Minimal package set compatible with most boards.
+endef
+$(eval $(call Profile,Minimal))

diff --git a/target/linux/archs38/generic/profiles/02-axs103.mk b/target/linux/archs38/generic/profiles/02-axs103.mk
new file mode 100644 (file)
index 0000000..4a8ea3a
--- /dev/null
+++ b/target/linux/archs38/generic/profiles/02-axs103.mk
@@ -0,0 +1,16 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define Profile/axs103
+       NAME:=Synopsys DesignWare AXS103
+       PACKAGES:= kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-mmc kmod-sdhci
+endef
+
+define Profile/axs103/Description
+       Package set compatible with hardware using Synopsys DesignWare AXS103 boards.
+endef
+$(eval $(call Profile,axs103))

diff --git a/target/linux/archs38/generic/profiles/03-nsim_hs.mk b/target/linux/archs38/generic/profiles/03-nsim_hs.mk
new file mode 100644 (file)
index 0000000..cebb0a6
--- /dev/null
+++ b/target/linux/archs38/generic/profiles/03-nsim_hs.mk
@@ -0,0 +1,15 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define Profile/nsim_hs
+       NAME:=Synopsys nSIM
+endef
+
+define Profile/nsim_hs/Description
+       Package set compatible with hardware using Synopsys nSIM HS boards.
+endef
+$(eval $(call Profile,nsim_hs))

diff --git a/target/linux/archs38/generic/target.mk b/target/linux/archs38/generic/target.mk
new file mode 100644 (file)
index 0000000..19b310e
--- /dev/null
+++ b/target/linux/archs38/generic/target.mk
@@ -0,0 +1,8 @@
+BOARDNAME:=Generic
+FEATURES += ramdisk usb
+
+define Target/Description
+       Build firmware images for generic ARC HS38 based boards.
+endef
+
+

diff --git a/target/linux/archs38/image/Makefile b/target/linux/archs38/image/Makefile
new file mode 100644 (file)
index 0000000..9b0e53f
--- /dev/null
+++ b/target/linux/archs38/image/Makefile
@@ -0,0 +1,41 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+define Build/patch-dtb
+       $(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb)
+       $(STAGING_DIR_HOST)/bin/patch-dtb $@ $@.dtb
+endef
+
+# Shared device definition: applies to every defined device
+define Device/Default
+  PROFILES = Default $$(DEVICE_PROFILE)
+  KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
+  KERNEL_SUFFIX := .elf
+  KERNEL_INITRAMFS := kernel-bin | patch-dtb
+  KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs.elf
+  DEVICE_PROFILE :=
+  DEVICE_DTS :=
+endef
+DEVICE_VARS += DEVICE_PROFILE DEVICE_DTS
+
+define add_archs38
+  define Device/$(1)
+    DEVICE_PROFILE := $(1)
+    DEVICE_DTS := $(1)
+  endef
+  TARGET_DEVICES += $(1)
+endef
+
+# DesignWare AXS103
+$(eval $(call add_archs38,axs103_idu))
+
+# nSIM with ARCHS38
+$(eval $(call add_archs38,nsim_hs_idu))
+
+$(eval $(call BuildImage))