[linux-yocto] [PATCH] ARC: Add nsimhs- and hsdk-standard configs

[Alexey Brodkin]

With ARC support ramping-up in upstream OE we're ready to
build more complicated distributions and linux-yocto is
a nice and configurable base for that.

This commit adds support of 1 simulated board (nSIM) and
the mast affordable and powerful to date development board (HSDK).

Once Qemu port for ARC is functional (it's being actively developed now)
we'll switch from nSIM to Qemu.

Still it would be really good to keep nSIM support in linux-yocto for now
as it allows for simpler testing as compared to real HW.

Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Bruce Ashfield <bruce.ashfield at windriver.com>
---
 arch/arc/arc.cfg               |  8 ++++++
 arch/arc/arc.scc               |  5 ++++
 bsp/hsdk/hsdk-standard.scc     |  7 +++++
 bsp/hsdk/hsdk.cfg              | 61 ++++++++++++++++++++++++++++++++++++++++++
 bsp/hsdk/hsdk.scc              |  7 +++++
 bsp/nsimhs/nsimhs-standard.scc |  7 +++++
 bsp/nsimhs/nsimhs.cfg          |  9 +++++++
 bsp/nsimhs/nsimhs.scc          |  1 +
 8 files changed, 105 insertions(+)
 create mode 100644 arch/arc/arc.cfg
 create mode 100644 arch/arc/arc.scc
 create mode 100644 bsp/hsdk/hsdk-standard.scc
 create mode 100644 bsp/hsdk/hsdk.cfg
 create mode 100644 bsp/hsdk/hsdk.scc
 create mode 100644 bsp/nsimhs/nsimhs-standard.scc
 create mode 100644 bsp/nsimhs/nsimhs.cfg
 create mode 100644 bsp/nsimhs/nsimhs.scc

diff --git a/arch/arc/arc.cfg b/arch/arc/arc.cfg
new file mode 100644
index 00000000..761f3ed9
--- /dev/null
+++ b/arch/arc/arc.cfg
@@ -0,0 +1,8 @@
+CONFIG_ARC=y
+CONFIG_HIGH_RES_TIMERS=y
+
+CONFIG_ARC_CACHE=y
+
+# Enable unwinding
+CONFIG_ARC_DBG=y
+CONFIG_ARC_DW2_UNWIND=y
diff --git a/arch/arc/arc.scc b/arch/arc/arc.scc
new file mode 100644
index 00000000..bcc7c330
--- /dev/null
+++ b/arch/arc/arc.scc
@@ -0,0 +1,5 @@
+# patches are for everyone, but the kconfig data is just for ARC builds.
+if [ "$KARCH" = "arc" ]; then
+       kconf hardware arc.cfg
+       include cfg/timer/hz_100.scc
+fi
diff --git a/bsp/hsdk/hsdk-standard.scc b/bsp/hsdk/hsdk-standard.scc
new file mode 100644
index 00000000..29c46047
--- /dev/null
+++ b/bsp/hsdk/hsdk-standard.scc
@@ -0,0 +1,7 @@
+define KMACHINE hsdk
+define KTYPE standard
+define KARCH arc
+
+include ktypes/standard/standard.scc
+
+include hsdk.scc
diff --git a/bsp/hsdk/hsdk.cfg b/bsp/hsdk/hsdk.cfg
new file mode 100644
index 00000000..6d439021
--- /dev/null
+++ b/bsp/hsdk/hsdk.cfg
@@ -0,0 +1,61 @@
+# ARCv2 ISA
+CONFIG_ISA_ARCV2=y
+
+# HSDK custom SoC
+CONFIG_ARC_SOC_HSDK=y
+CONFIG_SMP=y
+
+# Build default .dtb inside kernel image as a good starting point
+CONFIG_ARC_BUILTIN_DTB_NAME="hsdk"
+
+# Enable passing command-line and .dtb from U-Boot
+CONFIG_ARC_UBOOT_SUPPORT=y
+
+# Auto-selected by U-Boot support but if it is enabled slave cores won't start
+# CONFIG_ARC_SMP_HALT_ON_RESET is not set
+
+# Serial port
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_OF_PLATFORM=y
+
+# DesignWare MobileStorage AKA DW MMC
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_DW=y
+
+# We use non-standard link base 0x9z to accommodate DCCM mapped to 0x8z
+# on cores 1 & 3.
+# Though we move xCCMs to 0x6z on early boot and may use all avaialble DDR
+# starting from normal 0x8z thus LINUX_RAM_BASE.
+CONFIG_LINUX_LINK_BASE=0x90000000
+CONFIG_LINUX_RAM_BASE=0x80000000
+
+# Ethernet
+CONFIG_NET_VENDOR_STMICRO=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+CONFIG_MICREL_PHY=y
+
+# GPIO
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_DWAPB=y
+
+# Video
+CONFIG_DRM=y
+CONFIG_DRM_UDL=y
+CONFIG_FB=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+
+# Required for SOFTLOCKUP_DETECTOR
+CONFIG_DEBUG_KERNEL=y
+
+# Soft lock-up detector
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
+
+# Performance counters
+CONFIG_PERF_EVENTS=y
diff --git a/bsp/hsdk/hsdk.scc b/bsp/hsdk/hsdk.scc
new file mode 100644
index 00000000..2cfcb654
--- /dev/null
+++ b/bsp/hsdk/hsdk.scc
@@ -0,0 +1,7 @@
+include features/input/input.scc
+include features/usb/ehci-hcd.scc
+include features/usb/ohci-hcd.scc
+
+include cfg/usb-mass-storage.scc
+
+kconf hardware hsdk.cfg
diff --git a/bsp/nsimhs/nsimhs-standard.scc b/bsp/nsimhs/nsimhs-standard.scc
new file mode 100644
index 00000000..da749cd0
--- /dev/null
+++ b/bsp/nsimhs/nsimhs-standard.scc
@@ -0,0 +1,7 @@
+define KMACHINE nsimhs
+define KTYPE standard
+define KARCH arc
+
+include ktypes/standard/standard.scc
+
+include nsimhs.scc
diff --git a/bsp/nsimhs/nsimhs.cfg b/bsp/nsimhs/nsimhs.cfg
new file mode 100644
index 00000000..2475825d
--- /dev/null
+++ b/bsp/nsimhs/nsimhs.cfg
@@ -0,0 +1,9 @@
+# ARCv2 ISA
+CONFIG_ISA_ARCV2=y
+
+# Legacy ARC UART
+CONFIG_SERIAL_ARC=y
+CONFIG_SERIAL_ARC_CONSOLE=y
+
+# Built-in .dtb
+CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs"
diff --git a/bsp/nsimhs/nsimhs.scc b/bsp/nsimhs/nsimhs.scc
new file mode 100644
index 00000000..93a3ab1b
--- /dev/null
+++ b/bsp/nsimhs/nsimhs.scc
@@ -0,0 +1 @@
+kconf hardware nsimhs.cfg
-- 
2.16.2