[PATCH v8 4/4] MIPS: Ingenic: Add YSH & ATIL CU Neo board support.

From: "周琰杰 (Zhou Yanjie)" <zhouyanjie@wanyeetech.com>
To: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	robh+dt@kernel.org, paul.burton@mips.com, paulburton@kernel.org,
	jhogan@kernel.org, mripard@kernel.org, shawnguo@kernel.org,
	mark.rutland@arm.com, alexandre.belloni@bootlin.com,
	ralf@linux-mips.org, heiko@sntech.de, icenowy@aosc.io,
	ak@linux.intel.com, laurent.pinchart@ideasonboard.com,
	krzk@kernel.org, geert+renesas@glider.be, paul@crapouillou.net,
	prasannatsmkumar@gmail.com, keescook@chromium.org,
	ebiederm@xmission.com, sernia.zhou@foxmail.com,
	zhenwenjin@gmail.com, 772753199@qq.com
Subject: [PATCH v8 4/4] MIPS: Ingenic: Add YSH & ATIL CU Neo board support.
Date: Tue, 10 Dec 2019 20:02:43 +0800	[thread overview]
Message-ID: <1575979363-25956-5-git-send-email-zhouyanjie@wanyeetech.com> (raw)
In-Reply-To: <1575979363-25956-1-git-send-email-zhouyanjie@wanyeetech.com>

Add a device tree for the Ingenic X1000 based YSH & ATIL CU Neo board.
Note that this is unselectable via Kconfig until the X1000 SoC is made
selectable in a later commit.

Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
---

Notes:
    v1->v2:
    Rebase on top of mips-next, use TCU for system timer and clocksource.
    
    v2->v3:
    No change.
    
    v3->v4:
    1.Adjust "model" in "cu1000.dts" to match the description in "devices.yaml".
    2.Adjust "bool" in "Kconfig" to avoid duplicate names with subsequent boards.
    
    v4->v5:
    1.Rename "cu1000" to "cu1000-neo" to prevent conflicts with subsequent boards
      such as "cu1000-geo", and so on.
    2.Remove "CONFIG_HZ=100" and "mem=32M@0x0" from defconfg.
    3.Modify incorrect comments in DT.
    
    v5->v6:
    1.Use "stdout-path = "serial2:115200n8"" instead "stdout-path = &uart2" in DT.
    2.Remove "console=ttyS2,115200n8" and "CONFIG_CMDLINE_OVERRIDE=y" from defconfg.
    
    v6->v7:
    Change my Signed-off-by from "Zhou Yanjie <zhouyanjie@zoho.com>"
    to "周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>" because
    the old mailbox is in an unstable state.
    
    v7->v8:
    Merge [6/6] in v7 to this patch.

 arch/mips/boot/dts/ingenic/Makefile       |   1 +
 arch/mips/boot/dts/ingenic/cu1000-neo.dts |  99 ++++++++++++++++++++++++++
 arch/mips/configs/cu1000-neo_defconfig    | 111 ++++++++++++++++++++++++++++++
 arch/mips/jz4740/Kconfig                  |   4 ++
 4 files changed, 215 insertions(+)
 create mode 100644 arch/mips/boot/dts/ingenic/cu1000-neo.dts
 create mode 100644 arch/mips/configs/cu1000-neo_defconfig

diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile
index 9cc4844..e165429 100644
--- a/arch/mips/boot/dts/ingenic/Makefile
+++ b/arch/mips/boot/dts/ingenic/Makefile
@@ -2,5 +2,6 @@
 dtb-$(CONFIG_JZ4740_QI_LB60)	+= qi_lb60.dtb
 dtb-$(CONFIG_JZ4770_GCW0)	+= gcw0.dtb
 dtb-$(CONFIG_JZ4780_CI20)	+= ci20.dtb
+dtb-$(CONFIG_X1000_CU1000_NEO)	+= cu1000-neo.dtb
 
 obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/ingenic/cu1000-neo.dts b/arch/mips/boot/dts/ingenic/cu1000-neo.dts
new file mode 100644
index 00000000..b0733da
--- /dev/null
+++ b/arch/mips/boot/dts/ingenic/cu1000-neo.dts
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "x1000.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/ingenic,tcu.h>
+
+/ {
+	compatible = "yna,cu1000-neo", "ingenic,x1000";
+	model = "YSH & ATIL General Board CU Neo";
+
+	aliases {
+		serial2 = &uart2;
+	};
+
+	chosen {
+		stdout-path = "serial2:115200n8";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x04000000>;
+	};
+};
+
+&exclk {
+	clock-frequency = <24000000>;
+};
+
+&tcu {
+	/* 1500 kHz for the system timer and clocksource */
+	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>;
+	assigned-clock-rates = <1500000>, <1500000>;
+
+	/* Use channel #0 for the system timer channel #2 for the clocksource */
+	ingenic,pwm-channels-mask = <0xfa>;
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_uart2>;
+
+	status = "okay";
+};
+
+&mac {
+	phy-mode = "rmii";
+	phy-handle = <&lan8720a>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_mac>;
+
+	snps,reset-gpio = <&gpc 23 GPIO_ACTIVE_LOW>; /* PC23 */
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 10000 30000>;
+
+	status = "okay";
+};
+
+&mdio {
+	status = "okay";
+
+	lan8720a: ethernet-phy@0 {
+		compatible = "ethernet-phy-id0007.c0f0", "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+	};
+};
+
+&msc0 {
+	bus-width = <8>;
+	max-frequency = <50000000>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_msc0>;
+
+	non-removable;
+
+	status = "okay";
+};
+
+&pinctrl {
+	pins_uart2: uart2 {
+		function = "uart2";
+		groups = "uart2-data-d";
+		bias-disable;
+	};
+
+	pins_mac: mac {
+		function = "mac";
+		groups = "mac";
+		bias-disable;
+	};
+
+	pins_msc0: msc0 {
+		function = "mmc0";
+		groups = "mmc0-1bit", "mmc0-4bit", "mmc0-8bit";
+		bias-disable;
+	};
+};
diff --git a/arch/mips/configs/cu1000-neo_defconfig b/arch/mips/configs/cu1000-neo_defconfig
new file mode 100644
index 00000000..9f988ed
--- /dev/null
+++ b/arch/mips/configs/cu1000-neo_defconfig
@@ -0,0 +1,111 @@
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_KERNEL_GZIP=y
+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_KMEM=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SLAB=y
+CONFIG_MACH_INGENIC=y
+CONFIG_X1000_CU1000_NEO=y
+CONFIG_HIGHMEM=y
+CONFIG_HZ_100=y
+# CONFIG_SECCOMP is not set
+# CONFIG_SUSPEND is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_COMPACTION is not set
+CONFIG_CMA=y
+CONFIG_CMA_AREAS=7
+CONFIG_NET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_UEVENT_HELPER=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_NETDEVICES=y
+CONFIG_STMMAC_ETH=y
+CONFIG_SMSC_PHY=y
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=2
+CONFIG_SERIAL_EARLYCON=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=3
+CONFIG_SERIAL_8250_RUNTIME_UARTS=3
+CONFIG_SERIAL_8250_INGENIC=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_GPIO_SYSFS=y
+CONFIG_WATCHDOG=y
+CONFIG_JZ4740_WDT=y
+# CONFIG_HWMON is not set
+# CONFIG_LCD_CLASS_DEVICE is not set
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+# CONFIG_VGA_CONSOLE is not set
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_MMC=y
+CONFIG_MMC_JZ4740=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_JZ4740=y
+CONFIG_DMADEVICES=y
+CONFIG_DMA_JZ4780=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_NVMEM=y
+CONFIG_NVMEM_SYSFS=y
+CONFIG_EXT4_FS=y
+# CONFIG_DNOTIFY is not set
+CONFIG_AUTOFS_FS=y
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_NLS=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_UTF8=y
+CONFIG_CRYPTO_ECHAINIV=y
+CONFIG_CRYPTO_AES=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_PRINTK_TIME=y
+CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
+CONFIG_CONSOLE_LOGLEVEL_QUIET=15
+CONFIG_MESSAGE_LOGLEVEL_DEFAULT=7
+CONFIG_DEBUG_INFO=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PANIC_TIMEOUT=10
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+CONFIG_STACKTRACE=y
+# CONFIG_FTRACE is not set
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="earlycon clk_ignore_unused"
diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
index 6b96844..412d2fa 100644
--- a/arch/mips/jz4740/Kconfig
+++ b/arch/mips/jz4740/Kconfig
@@ -16,6 +16,10 @@ config JZ4780_CI20
 	bool "MIPS Creator CI20"
 	select MACH_JZ4780
 
+config X1000_CU1000_NEO
+	bool "YSH & ATIL CU1000 Module with Neo backplane"
+	select MACH_X1000
+
 endchoice
 
 config MACH_JZ4740
-- 
2.7.4

