Addressed comments from:
- Rob: https://www.spinics.net/lists/arm-kernel/msg606616.html
Changes since previous update:
- Addressed some device tree issues pointed out by Rob.
- No changes to mach-npcm since v5
- No changes to MAINTAINERS since v5
Changes have been tested on the NPCM750 evaluation board.
Adds basic support for the Nuvoton NPCM750 BMC.
Signed-off-by: Brendan Higgins <[email protected]>
---
arch/arm/Kconfig | 2 +
arch/arm/Makefile | 1 +
arch/arm/mach-npcm/Kconfig | 48 ++++++++++++++++++++++++
arch/arm/mach-npcm/Makefile | 3 ++
arch/arm/mach-npcm/headsmp.S | 17 +++++++++
arch/arm/mach-npcm/npcm7xx.c | 34 +++++++++++++++++
arch/arm/mach-npcm/platsmp.c | 88 ++++++++++++++++++++++++++++++++++++++++++++
7 files changed, 193 insertions(+)
create mode 100644 arch/arm/mach-npcm/Kconfig
create mode 100644 arch/arm/mach-npcm/Makefile
create mode 100644 arch/arm/mach-npcm/headsmp.S
create mode 100644 arch/arm/mach-npcm/npcm7xx.c
create mode 100644 arch/arm/mach-npcm/platsmp.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 61a0cb15067e..05543f1cfbde 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -782,6 +782,8 @@ source "arch/arm/mach-netx/Kconfig"
source "arch/arm/mach-nomadik/Kconfig"
+source "arch/arm/mach-npcm/Kconfig"
+
source "arch/arm/mach-nspire/Kconfig"
source "arch/arm/plat-omap/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 47d3a1ab08d2..60ca50c7d762 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -191,6 +191,7 @@ machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
machine-$(CONFIG_ARCH_MXS) += mxs
machine-$(CONFIG_ARCH_NETX) += netx
machine-$(CONFIG_ARCH_NOMADIK) += nomadik
+machine-$(CONFIG_ARCH_NPCM) += npcm
machine-$(CONFIG_ARCH_NSPIRE) += nspire
machine-$(CONFIG_ARCH_OXNAS) += oxnas
machine-$(CONFIG_ARCH_OMAP1) += omap1
diff --git a/arch/arm/mach-npcm/Kconfig b/arch/arm/mach-npcm/Kconfig
new file mode 100644
index 000000000000..21dfa8ce828f
--- /dev/null
+++ b/arch/arm/mach-npcm/Kconfig
@@ -0,0 +1,48 @@
+menuconfig ARCH_NPCM
+ bool "Nuvoton NPCM Architecture"
+ select ARCH_REQUIRE_GPIOLIB
+ select USE_OF
+ select PINCTRL
+ select PINCTRL_NPCM7XX
+
+if ARCH_NPCM
+
+comment "NPCMX50 CPU type"
+
+config CPU_NPCM750
+ depends on ARCH_NPCM && ARCH_MULTI_V7
+ bool "Support for NPCM750 BMC CPU (Poleg)"
+ select CACHE_L2X0
+ select CPU_V7
+ select ARM_GIC
+ select HAVE_SMP
+ select SMP
+ select SMP_ON_UP
+ select HAVE_ARM_SCU
+ select HAVE_ARM_TWD if SMP
+ select ARM_ERRATA_720789
+ select ARM_ERRATA_754322
+ select ARM_ERRATA_764369
+ select ARM_ERRATA_794072
+ select PL310_ERRATA_588369
+ select PL310_ERRATA_727915
+ select USB_EHCI_ROOT_HUB_TT
+ select USB_ARCH_HAS_HCD
+ select USB_ARCH_HAS_EHCI
+ select USB_EHCI_HCD
+ select USB_ARCH_HAS_OHCI
+ select USB_OHCI_HCD
+ select USB
+ select FIQ
+ select CPU_USE_DOMAINS
+ select GENERIC_CLOCKEVENTS
+ select CLKDEV_LOOKUP
+ select COMMON_CLK if OF
+ select NPCM750_TIMER
+ select MFD_SYSCON
+ help
+ Support for NPCM750 BMC CPU (Poleg).
+
+ Nuvoton NPCM750 BMC based on the Cortex A9.
+
+endif
diff --git a/arch/arm/mach-npcm/Makefile b/arch/arm/mach-npcm/Makefile
new file mode 100644
index 000000000000..78416055b854
--- /dev/null
+++ b/arch/arm/mach-npcm/Makefile
@@ -0,0 +1,3 @@
+AFLAGS_headsmp.o += -march=armv7-a
+
+obj-$(CONFIG_CPU_NPCM750) += npcm7xx.o platsmp.o headsmp.o
diff --git a/arch/arm/mach-npcm/headsmp.S b/arch/arm/mach-npcm/headsmp.S
new file mode 100644
index 000000000000..9fccbbd49ed4
--- /dev/null
+++ b/arch/arm/mach-npcm/headsmp.S
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2017 Google, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/assembler.h>
+
+ENTRY(npcm7xx_secondary_startup)
+ safe_svcmode_maskall r0
+
+ b secondary_startup
+ENDPROC(npcm7xx_secondary_startup)
diff --git a/arch/arm/mach-npcm/npcm7xx.c b/arch/arm/mach-npcm/npcm7xx.c
new file mode 100644
index 000000000000..132e9d587857
--- /dev/null
+++ b/arch/arm/mach-npcm/npcm7xx.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2017 Nuvoton Technology corporation.
+ * Copyright 2017 Google, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+#include <asm/mach/map.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#define NPCM7XX_AUX_VAL (L310_AUX_CTRL_INSTR_PREFETCH | \
+ L310_AUX_CTRL_DATA_PREFETCH | \
+ L310_AUX_CTRL_NS_LOCKDOWN | \
+ L310_AUX_CTRL_CACHE_REPLACE_RR | \
+ L2C_AUX_CTRL_SHARED_OVERRIDE | \
+ L310_AUX_CTRL_FULL_LINE_ZERO)
+
+static const char *const npcm7xx_dt_match[] = {
+ "nuvoton,npcm750",
+ NULL
+};
+
+DT_MACHINE_START(NPCM7XX_DT, "NPCMX50 Chip family")
+ .atag_offset = 0x100,
+ .dt_compat = npcm7xx_dt_match,
+ .l2c_aux_val = NPCM7XX_AUX_VAL,
+ .l2c_aux_mask = ~NPCM7XX_AUX_VAL,
+MACHINE_END
diff --git a/arch/arm/mach-npcm/platsmp.c b/arch/arm/mach-npcm/platsmp.c
new file mode 100644
index 000000000000..450e83c3c531
--- /dev/null
+++ b/arch/arm/mach-npcm/platsmp.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2017 Google, Inc.
+ *
+ * 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.
+ */
+
+#define pr_fmt(fmt) "PLATSMP: " fmt
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <asm/cacheflush.h>
+#include <asm/smp.h>
+#include <asm/smp_plat.h>
+#include <asm/smp_scu.h>
+
+#define NPCM7XX_SCRPAD_REG 0x13c
+
+extern void npcm7xx_secondary_startup(void);
+
+static int npcm7xx_smp_boot_secondary(unsigned int cpu,
+ struct task_struct *idle)
+{
+ struct device_node *gcr_np;
+ void __iomem *gcr_base;
+ int ret = 0;
+
+ gcr_np = of_find_compatible_node(NULL, NULL, "nuvoton,npcm750-gcr");
+ if (!gcr_np) {
+ pr_err("no gcr device node\n");
+ ret = -EFAULT;
+ goto out;
+ }
+ gcr_base = of_iomap(gcr_np, 0);
+ if (!gcr_base) {
+ pr_err("could not iomap gcr at: 0x%p\n", gcr_base);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ /* give boot ROM kernel start address. */
+ iowrite32(__pa_symbol(npcm7xx_secondary_startup), gcr_base +
+ NPCM7XX_SCRPAD_REG);
+ /* make sure npcm7xx_secondary_startup is seen by all observers. */
+ smp_wmb();
+ dsb_sev();
+ /* make sure write buffer is drained */
+ mb();
+
+ iounmap(gcr_base);
+out:
+ return ret;
+}
+
+static void __init npcm7xx_smp_prepare_cpus(unsigned int max_cpus)
+{
+ struct device_node *scu_np;
+ void __iomem *scu_base;
+
+ scu_np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
+ if (!scu_np) {
+ pr_err("no scu device node\n");
+ return;
+ }
+ scu_base = of_iomap(scu_np, 0);
+ if (!scu_base) {
+ pr_err("could not iomap scu at: 0x%p\n", scu_base);
+ return;
+ }
+
+ scu_enable(scu_base);
+
+ iounmap(scu_base);
+}
+
+static struct smp_operations npcm7xx_smp_ops __initdata = {
+ .smp_prepare_cpus = npcm7xx_smp_prepare_cpus,
+ .smp_boot_secondary = npcm7xx_smp_boot_secondary,
+};
+
+CPU_METHOD_OF_DECLARE(npcm7xx_smp, "nuvoton,npcm7xx-smp", &npcm7xx_smp_ops);
--
2.14.1.690.gbb1197296e-goog
Add a common device tree for all Nuvoton NPCM750 BMCs and a board
specific device tree for the NPCM750 (Poleg) evaluation board.
Signed-off-by: Brendan Higgins <[email protected]>
Reviewed-by: Tomer Maimon <[email protected]>
Reviewed-by: Avi Fishman <[email protected]>
Reviewed-by: Joel Stanley <[email protected]>
Tested-by: Tomer Maimon <[email protected]>
Tested-by: Avi Fishman <[email protected]>
---
.../arm/cpu-enable-method/nuvoton,npcm7xx-smp | 42 ++++
.../devicetree/bindings/arm/npcm/npcm.txt | 6 +
arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 48 +++++
arch/arm/boot/dts/nuvoton-npcm750.dtsi | 211 +++++++++++++++++++++
include/dt-bindings/clock/nuvoton,npcm7xx-clks.h | 39 ++++
5 files changed, 346 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
create mode 100644 Documentation/devicetree/bindings/arm/npcm/npcm.txt
create mode 100644 arch/arm/boot/dts/nuvoton-npcm750-evb.dts
create mode 100644 arch/arm/boot/dts/nuvoton-npcm750.dtsi
create mode 100644 include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
diff --git a/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
new file mode 100644
index 000000000000..e81f85b400cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
@@ -0,0 +1,42 @@
+=========================================================
+Secondary CPU enable-method "nuvoton,npcm7xx-smp" binding
+=========================================================
+
+To apply to all CPUs, a single "nuvoton,npcm7xx-smp" enable method should be
+defined in the "cpus" node.
+
+Enable method name: "nuvoton,npcm7xx-smp"
+Compatible machines: "nuvoton,npcm750"
+Compatible CPUs: "arm,cortex-a9"
+Related properties: (none)
+
+Note:
+This enable method needs valid nodes compatible with "arm,cortex-a9-scu" and
+"nuvoton,npcm750-gcr".
+
+Example:
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "nuvoton,npcm7xx-smp";
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk NPCM7XX_CLK_CPU>;
+ clock-names = "clk_cpu";
+ reg = <0>;
+ next-level-cache = <&L2>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk NPCM7XX_CLK_CPU>;
+ clock-names = "clk_cpu";
+ reg = <1>;
+ next-level-cache = <&L2>;
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/arm/npcm/npcm.txt b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
new file mode 100644
index 000000000000..2d87d9ecea85
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
@@ -0,0 +1,6 @@
+NPCM Platforms Device Tree Bindings
+-----------------------------------
+NPCM750 SoC
+Required root node properties:
+ - compatible = "nuvoton,npcm750";
+
diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
new file mode 100644
index 000000000000..a0675e584125
--- /dev/null
+++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
@@ -0,0 +1,48 @@
+/*
+ * DTS file for all NPCM750 SoCs
+ *
+ * Copyright 2012 Tomer Maimon <[email protected]>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include "nuvoton-npcm750.dtsi"
+
+/ {
+ model = "Nuvoton npcm750 Development Board (Device Tree)";
+ compatible = "nuvoton,npcm750";
+
+ chosen {
+ stdout-path = &serial3;
+ };
+
+ memory {
+ reg = <0 0x40000000>;
+ };
+};
+
+&watchdog1 {
+ status = "okay";
+};
+
+&serial0 {
+ status = "okay";
+};
+
+&serial1 {
+ status = "okay";
+};
+
+&serial2 {
+ status = "okay";
+};
+
+&serial3 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/nuvoton-npcm750.dtsi b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
new file mode 100644
index 000000000000..5d8a48e44274
--- /dev/null
+++ b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
@@ -0,0 +1,211 @@
+/*
+ * DTSi file for the NPCM750 SoC
+ *
+ * Copyright 2012 Tomer Maimon <[email protected]>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/nuvoton,npcm7xx-clks.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&gic>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "nuvoton,npcm7xx-smp";
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk NPCM7XX_CLK_CPU>;
+ clock-names = "clk_cpu";
+ reg = <0>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk NPCM7XX_CLK_CPU>;
+ clock-names = "clk_cpu";
+ reg = <1>;
+ next-level-cache = <&l2>;
+ };
+ };
+
+ gcr: gcr@f0800000 {
+ compatible = "nuvoton,npcm750-gcr", "syscon",
+ "simple-mfd";
+ reg = <0xf0800000 0x1000>;
+ };
+
+ scu: scu@f03fe000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0xf03fe000 0x1000>;
+ };
+
+ l2: cache-controller@f03fc000 {
+ compatible = "arm,pl310-cache";
+ reg = <0xf03fc000 0x1000>;
+ interrupts = <0 21 4>;
+ cache-unified;
+ cache-level = <2>;
+ clocks = <&clk NPCM7XX_CLK_AXI>;
+ };
+
+ gic: interrupt-controller@f03ff000 {
+ compatible = "arm,cortex-a9-gic";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0xf03ff000 0x1000>,
+ <0xf03fe100 0x100>;
+ };
+
+ timer@f03fe600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0xf03fe600 0x20>;
+ interrupts = <1 13 0x304>;
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ ahb {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0x80000000 0x80000000 0x40000000
+ 0xc0000000 0xc0000000 0x00002000
+ 0xc0008000 0xc0008000 0x00001000
+ 0xe0800000 0xe0800000 0x00001000
+ 0xe1000000 0xe1000000 0x00001000
+ 0xe8000000 0xe8000000 0x08000000
+ /* APB start */
+ 0xf0000000 0xf0000000 0x00005000
+ 0xf0007000 0xf0007000 0x00005000
+ 0xf0010000 0xf0010000 0x00008000
+ 0xf0080000 0xf0080000 0x00010000
+ 0xf009f000 0xf009f000 0x00001000
+ 0xf0100000 0xf0100000 0x00005000
+ 0xf0180000 0xf0180000 0x0000b000
+ 0xf0200000 0xf0200000 0x00002000
+ /* APB end */
+ 0xf0800000 0xf0800000 0x000fc000
+ 0xf8000000 0xf8000000 0x02000000
+ 0xfb000000 0xfb000000 0x00002000>;
+
+ clk: clock-controller@f0801000 {
+ compatible = "nuvoton,npcm750-clk";
+ #clock-cells = <1>;
+ reg = <0xf0801000 0x1000>;
+ status = "okay";
+ };
+
+ /* external clock signal rg1refck, supplied by the phy */
+ clk-rg1refck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <125000000>;
+ };
+
+ /* external clock signal rg2refck, supplied by the phy */
+ clk-rg2refck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <125000000>;
+ };
+
+ clk-xin {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ };
+
+ apb {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0xf0000000 0xf0000000 0x00005000
+ 0xf0007000 0xf0007000 0x00005000
+ 0xf0010000 0xf0010000 0x00008000
+ 0xf0080000 0xf0080000 0x00010000
+ 0xf009f000 0xf009f000 0x00001000
+ 0xf0100000 0xf0100000 0x00005000
+ 0xf0180000 0xf0180000 0x0000b000
+ 0xf0200000 0xf0200000 0x00002000>;
+
+ timer0: timer@f0000000 {
+ compatible = "nuvoton,npcm750-timer";
+ interrupts = <0 32 4>;
+ reg = <0xf0000000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ watchdog0: watchdog@f0008000 {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <0 47 4>;
+ reg = <0xf0008000 0x1000>;
+ status = "disabled";
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ watchdog1: watchdog@f0009000 {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <0 48 4>;
+ reg = <0xf0009000 0x1000>;
+ status = "disabled";
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ watchdog2: watchdog@f000a000 {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <0 49 4>;
+ reg = <0xf000a000 0x1000>;
+ status = "disabled";
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ serial0: serial0@f0001000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0xf0001000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART_CORE>;
+ interrupts = <0 2 4>;
+ status = "disabled";
+ };
+
+ serial1: serial1@f0002000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0xf0002000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART_CORE>;
+ interrupts = <0 3 4>;
+ status = "disabled";
+ };
+
+ serial2: serial2@f0003000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0xf0003000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART_CORE>;
+ interrupts = <0 4 4>;
+ status = "disabled";
+ };
+
+ serial3: serial3@f0004000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0xf0004000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART_CORE>;
+ interrupts = <0 5 4>;
+ status = "disabled";
+ };
+ };
+ };
+};
diff --git a/include/dt-bindings/clock/nuvoton,npcm7xx-clks.h b/include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
new file mode 100644
index 000000000000..c69d3bbf7e42
--- /dev/null
+++ b/include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016 Nuvoton Technologies, [email protected]
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ */
+
+#ifndef _DT_BINDINGS_CLK_NPCM7XX_H
+#define _DT_BINDINGS_CLK_NPCM7XX_H
+
+#define NPCM7XX_CLK_PLL0 0
+#define NPCM7XX_CLK_PLL1 1
+#define NPCM7XX_CLK_PLL2 2
+#define NPCM7XX_CLK_GFX 3
+#define NPCM7XX_CLK_APB1 4
+#define NPCM7XX_CLK_APB2 5
+#define NPCM7XX_CLK_APB3 6
+#define NPCM7XX_CLK_APB4 7
+#define NPCM7XX_CLK_APB5 8
+#define NPCM7XX_CLK_MC 9
+#define NPCM7XX_CLK_CPU 10
+#define NPCM7XX_CLK_SPI0 11
+#define NPCM7XX_CLK_SPI3 12
+#define NPCM7XX_CLK_SPIX 13
+#define NPCM7XX_CLK_UART_CORE 14
+#define NPCM7XX_CLK_TIMER 15
+#define NPCM7XX_CLK_HOST_UART 16
+#define NPCM7XX_CLK_MMC 17
+#define NPCM7XX_CLK_SDHC 18
+#define NPCM7XX_CLK_ADC 19
+#define NPCM7XX_CLK_GFX_MEM 20
+#define NPCM7XX_CLK_USB_BRIDGE 21
+#define NPCM7XX_CLK_AXI 22
+#define NPCM7XX_CLK_AHB 23
+#define NPCM7XX_CLK_EMC 24
+#define NPCM7XX_CLK_GMAC 25
+
+#endif
--
2.14.1.690.gbb1197296e-goog
Add maintainers and reviewers for the Nuvoton NPCM architecture.
Signed-off-by: Brendan Higgins <[email protected]>
Reviewed-by: Tomer Maimon <[email protected]>
Reviewed-by: Avi Fishman <[email protected]>
---
MAINTAINERS | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 44cb004c765d..ec0d35384a16 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1598,6 +1598,19 @@ F: drivers/pinctrl/nomadik/
F: drivers/i2c/busses/i2c-nomadik.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
+ARM/NUVOTON NPCM ARCHITECTURE
+M: Avi Fishman <[email protected]>
+M: Tomer Maimon <[email protected]>
+R: Brendan Higgins <[email protected]>
+R: Rick Altherr <[email protected]>
+L: [email protected] (moderated for non-subscribers)
+S: Supported
+F: arch/arm/mach-npcm/
+F: arch/arm/boot/dts/nuvoton-npcm*
+F: include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
+F: drivers/*/*npcm*
+F: Documentation/*/*npcm*
+
ARM/NUVOTON W90X900 ARM ARCHITECTURE
M: Wan ZongShun <[email protected]>
L: [email protected] (moderated for non-subscribers)
--
2.14.1.690.gbb1197296e-goog
On Tue, Sep 19, 2017 at 03:40:00PM -0700, Brendan Higgins wrote:
> Add a common device tree for all Nuvoton NPCM750 BMCs and a board
> specific device tree for the NPCM750 (Poleg) evaluation board.
>
> Signed-off-by: Brendan Higgins <[email protected]>
> Reviewed-by: Tomer Maimon <[email protected]>
> Reviewed-by: Avi Fishman <[email protected]>
> Reviewed-by: Joel Stanley <[email protected]>
> Tested-by: Tomer Maimon <[email protected]>
> Tested-by: Avi Fishman <[email protected]>
> ---
> .../arm/cpu-enable-method/nuvoton,npcm7xx-smp | 42 ++++
> .../devicetree/bindings/arm/npcm/npcm.txt | 6 +
> arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 48 +++++
> arch/arm/boot/dts/nuvoton-npcm750.dtsi | 211 +++++++++++++++++++++
> include/dt-bindings/clock/nuvoton,npcm7xx-clks.h | 39 ++++
> 5 files changed, 346 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
> create mode 100644 Documentation/devicetree/bindings/arm/npcm/npcm.txt
> create mode 100644 arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> create mode 100644 arch/arm/boot/dts/nuvoton-npcm750.dtsi
> create mode 100644 include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
>
> diff --git a/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
> new file mode 100644
> index 000000000000..e81f85b400cf
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
> @@ -0,0 +1,42 @@
> +=========================================================
> +Secondary CPU enable-method "nuvoton,npcm7xx-smp" binding
> +=========================================================
> +
> +To apply to all CPUs, a single "nuvoton,npcm7xx-smp" enable method should be
> +defined in the "cpus" node.
> +
> +Enable method name: "nuvoton,npcm7xx-smp"
> +Compatible machines: "nuvoton,npcm750"
> +Compatible CPUs: "arm,cortex-a9"
> +Related properties: (none)
> +
> +Note:
> +This enable method needs valid nodes compatible with "arm,cortex-a9-scu" and
> +"nuvoton,npcm750-gcr".
> +
> +Example:
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + enable-method = "nuvoton,npcm7xx-smp";
> +
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <0>;
> + next-level-cache = <&L2>;
> + };
> +
> + cpu@1 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <1>;
> + next-level-cache = <&L2>;
> + };
> + };
> +
> diff --git a/Documentation/devicetree/bindings/arm/npcm/npcm.txt b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
> new file mode 100644
> index 000000000000..2d87d9ecea85
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
> @@ -0,0 +1,6 @@
> +NPCM Platforms Device Tree Bindings
> +-----------------------------------
> +NPCM750 SoC
> +Required root node properties:
> + - compatible = "nuvoton,npcm750";
> +
> diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> new file mode 100644
> index 000000000000..a0675e584125
> --- /dev/null
> +++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> @@ -0,0 +1,48 @@
> +/*
> + * DTS file for all NPCM750 SoCs
> + *
> + * Copyright 2012 Tomer Maimon <[email protected]>
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +
> +/dts-v1/;
> +#include "nuvoton-npcm750.dtsi"
> +
> +/ {
> + model = "Nuvoton npcm750 Development Board (Device Tree)";
> + compatible = "nuvoton,npcm750";
> +
> + chosen {
> + stdout-path = &serial3;
> + };
> +
> + memory {
> + reg = <0 0x40000000>;
> + };
> +};
> +
> +&watchdog1 {
> + status = "okay";
> +};
> +
> +&serial0 {
> + status = "okay";
> +};
> +
> +&serial1 {
> + status = "okay";
> +};
> +
> +&serial2 {
> + status = "okay";
> +};
> +
> +&serial3 {
> + status = "okay";
> +};
> diff --git a/arch/arm/boot/dts/nuvoton-npcm750.dtsi b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
> new file mode 100644
> index 000000000000..5d8a48e44274
> --- /dev/null
> +++ b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
> @@ -0,0 +1,211 @@
> +/*
> + * DTSi file for the NPCM750 SoC
> + *
> + * Copyright 2012 Tomer Maimon <[email protected]>
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/nuvoton,npcm7xx-clks.h>
> +
> +/ {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + interrupt-parent = <&gic>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + enable-method = "nuvoton,npcm7xx-smp";
> +
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <0>;
> + next-level-cache = <&l2>;
> + };
> +
> + cpu@1 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <1>;
> + next-level-cache = <&l2>;
> + };
> + };
> +
> + gcr: gcr@f0800000 {
> + compatible = "nuvoton,npcm750-gcr", "syscon",
> + "simple-mfd";
> + reg = <0xf0800000 0x1000>;
> + };
> +
> + scu: scu@f03fe000 {
> + compatible = "arm,cortex-a9-scu";
> + reg = <0xf03fe000 0x1000>;
> + };
> +
> + l2: cache-controller@f03fc000 {
> + compatible = "arm,pl310-cache";
> + reg = <0xf03fc000 0x1000>;
> + interrupts = <0 21 4>;
> + cache-unified;
> + cache-level = <2>;
> + clocks = <&clk NPCM7XX_CLK_AXI>;
> + };
> +
> + gic: interrupt-controller@f03ff000 {
> + compatible = "arm,cortex-a9-gic";
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + reg = <0xf03ff000 0x1000>,
> + <0xf03fe100 0x100>;
> + };
> +
> + timer@f03fe600 {
> + compatible = "arm,cortex-a9-twd-timer";
> + reg = <0xf03fe600 0x20>;
> + interrupts = <1 13 0x304>;
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
All these nodes with a memory mapped address should go under a bus node.
> +
> + ahb {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "simple-bus";
> + interrupt-parent = <&gic>;
> + ranges = <0x80000000 0x80000000 0x40000000
> + 0xc0000000 0xc0000000 0x00002000
> + 0xc0008000 0xc0008000 0x00001000
> + 0xe0800000 0xe0800000 0x00001000
> + 0xe1000000 0xe1000000 0x00001000
> + 0xe8000000 0xe8000000 0x08000000
These addresses don't appear to be used. These are coming later? They
could be collapsed down into 2 entries.
<0x80000000 0x80000000 0x40010000>
<0xe0800000 0xe0800000 0x0f800000>
> + /* APB start */
> + 0xf0000000 0xf0000000 0x00005000
> + 0xf0007000 0xf0007000 0x00005000
> + 0xf0010000 0xf0010000 0x00008000
> + 0xf0080000 0xf0080000 0x00010000
> + 0xf009f000 0xf009f000 0x00001000
> + 0xf0100000 0xf0100000 0x00005000
> + 0xf0180000 0xf0180000 0x0000b000
> + 0xf0200000 0xf0200000 0x00002000
Not necessary to be so fine grained and shouldn't just be 1:1. So
for these just:
<0 0xf0000000 0x00900000>
> + /* APB end */
> + 0xf0800000 0xf0800000 0x000fc000
> + 0xf8000000 0xf8000000 0x02000000
> + 0xfb000000 0xfb000000 0x00002000>;
> +
> + clk: clock-controller@f0801000 {
> + compatible = "nuvoton,npcm750-clk";
> + #clock-cells = <1>;
> + reg = <0xf0801000 0x1000>;
Then this becomes: 0x801000 0x1000
> + status = "okay";
> + };
> +
> + /* external clock signal rg1refck, supplied by the phy */
> + clk-rg1refck {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <125000000>;
> + };
> +
> + /* external clock signal rg2refck, supplied by the phy */
> + clk-rg2refck {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <125000000>;
> + };
> +
> + clk-xin {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + };
These clocks are not on the bus, so move them out of the bus node to the
top level.
> +
> + apb {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "simple-bus";
> + interrupt-parent = <&gic>;
> + ranges = <0xf0000000 0xf0000000 0x00005000
> + 0xf0007000 0xf0007000 0x00005000
> + 0xf0010000 0xf0010000 0x00008000
> + 0xf0080000 0xf0080000 0x00010000
> + 0xf009f000 0xf009f000 0x00001000
> + 0xf0100000 0xf0100000 0x00005000
> + 0xf0180000 0xf0180000 0x0000b000
> + 0xf0200000 0xf0200000 0x00002000>;
With above changes this can be just: <0 0 0x300000>
> +
> + timer0: timer@f0000000 {
> + compatible = "nuvoton,npcm750-timer";
> + interrupts = <0 32 4>;
> + reg = <0xf0000000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + watchdog0: watchdog@f0008000 {
> + compatible = "nuvoton,npcm750-wdt";
> + interrupts = <0 47 4>;
> + reg = <0xf0008000 0x1000>;
> + status = "disabled";
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + watchdog1: watchdog@f0009000 {
> + compatible = "nuvoton,npcm750-wdt";
> + interrupts = <0 48 4>;
> + reg = <0xf0009000 0x1000>;
> + status = "disabled";
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + watchdog2: watchdog@f000a000 {
> + compatible = "nuvoton,npcm750-wdt";
> + interrupts = <0 49 4>;
> + reg = <0xf000a000 0x1000>;
> + status = "disabled";
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + serial0: serial0@f0001000 {
Sorry I miss this earlier, but need to drop the 0 in the node names.
IOW, should be "serial@f0001000".
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0001000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 2 4>;
> + status = "disabled";
> + };
> +
> + serial1: serial1@f0002000 {
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0002000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 3 4>;
> + status = "disabled";
> + };
> +
> + serial2: serial2@f0003000 {
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0003000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 4 4>;
> + status = "disabled";
> + };
> +
> + serial3: serial3@f0004000 {
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0004000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 5 4>;
> + status = "disabled";
> + };
> + };
> + };
> +};
On Sun, Oct 29, 2017 at 3:33 PM, Tomer Maimon <[email protected]> wrote:
> On 20 September 2017 at 00:40, Brendan Higgins
> <[email protected]> wrote:
>> Add a common device tree for all Nuvoton NPCM750 BMCs and a board
>> specific device tree for the NPCM750 (Poleg) evaluation board.
>>
>> + timer0: timer@f0000000 {
>> + compatible = "nuvoton,npcm750-timer";
>> + interrupts = <0 32 4>;
>> + reg = <0xf0000000 0x1000>;
>> + clocks = <&clk NPCM7XX_CLK_TIMER>;
>> + };
>
> I started the upstream process of NPCM7xx clocksource driver, I got
> the following comment:
> https://www.spinics.net/lists/devicetree/msg197916.html
>
> Is it possible to modify the the timer DT entry to:
>
> timer0: timer@f0008000 {
> compatible = "nuvoton,npcm7xx-timer";
Please don't. Using 750 is correct. Using 7xx (i.e. wildcards) is not.
If there's subsequent SoCs with the same block, then you can do:
'"nuvoton,npcm760-timer", "nuvoton,npcm750-timer"'.
Rob
From 1582625484156011122@xxx Sun Oct 29 20:34:36 +0000 2017
X-GM-THRID: 1579010319724238086
X-Gmail-Labels: Inbox,Category Forums
On 20 September 2017 at 00:40, Brendan Higgins
<[email protected]> wrote:
> Add a common device tree for all Nuvoton NPCM750 BMCs and a board
> specific device tree for the NPCM750 (Poleg) evaluation board.
>
> Signed-off-by: Brendan Higgins <[email protected]>
> Reviewed-by: Tomer Maimon <[email protected]>
> Reviewed-by: Avi Fishman <[email protected]>
> Reviewed-by: Joel Stanley <[email protected]>
> Tested-by: Tomer Maimon <[email protected]>
> Tested-by: Avi Fishman <[email protected]>
> ---
> .../arm/cpu-enable-method/nuvoton,npcm7xx-smp | 42 ++++
> .../devicetree/bindings/arm/npcm/npcm.txt | 6 +
> arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 48 +++++
> arch/arm/boot/dts/nuvoton-npcm750.dtsi | 211 +++++++++++++++++++++
> include/dt-bindings/clock/nuvoton,npcm7xx-clks.h | 39 ++++
> 5 files changed, 346 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
> create mode 100644 Documentation/devicetree/bindings/arm/npcm/npcm.txt
> create mode 100644 arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> create mode 100644 arch/arm/boot/dts/nuvoton-npcm750.dtsi
> create mode 100644 include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
>
> diff --git a/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
> new file mode 100644
> index 000000000000..e81f85b400cf
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
> @@ -0,0 +1,42 @@
> +=========================================================
> +Secondary CPU enable-method "nuvoton,npcm7xx-smp" binding
> +=========================================================
> +
> +To apply to all CPUs, a single "nuvoton,npcm7xx-smp" enable method should be
> +defined in the "cpus" node.
> +
> +Enable method name: "nuvoton,npcm7xx-smp"
> +Compatible machines: "nuvoton,npcm750"
> +Compatible CPUs: "arm,cortex-a9"
> +Related properties: (none)
> +
> +Note:
> +This enable method needs valid nodes compatible with "arm,cortex-a9-scu" and
> +"nuvoton,npcm750-gcr".
> +
> +Example:
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + enable-method = "nuvoton,npcm7xx-smp";
> +
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <0>;
> + next-level-cache = <&L2>;
> + };
> +
> + cpu@1 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <1>;
> + next-level-cache = <&L2>;
> + };
> + };
> +
> diff --git a/Documentation/devicetree/bindings/arm/npcm/npcm.txt b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
> new file mode 100644
> index 000000000000..2d87d9ecea85
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
> @@ -0,0 +1,6 @@
> +NPCM Platforms Device Tree Bindings
> +-----------------------------------
> +NPCM750 SoC
> +Required root node properties:
> + - compatible = "nuvoton,npcm750";
> +
> diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> new file mode 100644
> index 000000000000..a0675e584125
> --- /dev/null
> +++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> @@ -0,0 +1,48 @@
> +/*
> + * DTS file for all NPCM750 SoCs
> + *
> + * Copyright 2012 Tomer Maimon <[email protected]>
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +
> +/dts-v1/;
> +#include "nuvoton-npcm750.dtsi"
> +
> +/ {
> + model = "Nuvoton npcm750 Development Board (Device Tree)";
> + compatible = "nuvoton,npcm750";
> +
> + chosen {
> + stdout-path = &serial3;
> + };
> +
> + memory {
> + reg = <0 0x40000000>;
> + };
> +};
> +
> +&watchdog1 {
> + status = "okay";
> +};
> +
> +&serial0 {
> + status = "okay";
> +};
> +
> +&serial1 {
> + status = "okay";
> +};
> +
> +&serial2 {
> + status = "okay";
> +};
> +
> +&serial3 {
> + status = "okay";
> +};
> diff --git a/arch/arm/boot/dts/nuvoton-npcm750.dtsi b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
> new file mode 100644
> index 000000000000..5d8a48e44274
> --- /dev/null
> +++ b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
> @@ -0,0 +1,211 @@
> +/*
> + * DTSi file for the NPCM750 SoC
> + *
> + * Copyright 2012 Tomer Maimon <[email protected]>
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/nuvoton,npcm7xx-clks.h>
> +
> +/ {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + interrupt-parent = <&gic>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + enable-method = "nuvoton,npcm7xx-smp";
> +
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <0>;
> + next-level-cache = <&l2>;
> + };
> +
> + cpu@1 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a9";
> + clocks = <&clk NPCM7XX_CLK_CPU>;
> + clock-names = "clk_cpu";
> + reg = <1>;
> + next-level-cache = <&l2>;
> + };
> + };
> +
> + gcr: gcr@f0800000 {
> + compatible = "nuvoton,npcm750-gcr", "syscon",
> + "simple-mfd";
> + reg = <0xf0800000 0x1000>;
> + };
> +
> + scu: scu@f03fe000 {
> + compatible = "arm,cortex-a9-scu";
> + reg = <0xf03fe000 0x1000>;
> + };
> +
> + l2: cache-controller@f03fc000 {
> + compatible = "arm,pl310-cache";
> + reg = <0xf03fc000 0x1000>;
> + interrupts = <0 21 4>;
> + cache-unified;
> + cache-level = <2>;
> + clocks = <&clk NPCM7XX_CLK_AXI>;
> + };
> +
> + gic: interrupt-controller@f03ff000 {
> + compatible = "arm,cortex-a9-gic";
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + reg = <0xf03ff000 0x1000>,
> + <0xf03fe100 0x100>;
> + };
> +
> + timer@f03fe600 {
> + compatible = "arm,cortex-a9-twd-timer";
> + reg = <0xf03fe600 0x20>;
> + interrupts = <1 13 0x304>;
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + ahb {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "simple-bus";
> + interrupt-parent = <&gic>;
> + ranges = <0x80000000 0x80000000 0x40000000
> + 0xc0000000 0xc0000000 0x00002000
> + 0xc0008000 0xc0008000 0x00001000
> + 0xe0800000 0xe0800000 0x00001000
> + 0xe1000000 0xe1000000 0x00001000
> + 0xe8000000 0xe8000000 0x08000000
> + /* APB start */
> + 0xf0000000 0xf0000000 0x00005000
> + 0xf0007000 0xf0007000 0x00005000
> + 0xf0010000 0xf0010000 0x00008000
> + 0xf0080000 0xf0080000 0x00010000
> + 0xf009f000 0xf009f000 0x00001000
> + 0xf0100000 0xf0100000 0x00005000
> + 0xf0180000 0xf0180000 0x0000b000
> + 0xf0200000 0xf0200000 0x00002000
> + /* APB end */
> + 0xf0800000 0xf0800000 0x000fc000
> + 0xf8000000 0xf8000000 0x02000000
> + 0xfb000000 0xfb000000 0x00002000>;
> +
> + clk: clock-controller@f0801000 {
> + compatible = "nuvoton,npcm750-clk";
> + #clock-cells = <1>;
> + reg = <0xf0801000 0x1000>;
> + status = "okay";
> + };
> +
> + /* external clock signal rg1refck, supplied by the phy */
> + clk-rg1refck {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <125000000>;
> + };
> +
> + /* external clock signal rg2refck, supplied by the phy */
> + clk-rg2refck {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <125000000>;
> + };
> +
> + clk-xin {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + };
> +
> + apb {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "simple-bus";
> + interrupt-parent = <&gic>;
> + ranges = <0xf0000000 0xf0000000 0x00005000
> + 0xf0007000 0xf0007000 0x00005000
> + 0xf0010000 0xf0010000 0x00008000
> + 0xf0080000 0xf0080000 0x00010000
> + 0xf009f000 0xf009f000 0x00001000
> + 0xf0100000 0xf0100000 0x00005000
> + 0xf0180000 0xf0180000 0x0000b000
> + 0xf0200000 0xf0200000 0x00002000>;
> +
> + timer0: timer@f0000000 {
> + compatible = "nuvoton,npcm750-timer";
> + interrupts = <0 32 4>;
> + reg = <0xf0000000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
I started the upstream process of NPCM7xx clocksource driver, I got
the following comment:
https://www.spinics.net/lists/devicetree/msg197916.html
Is it possible to modify the the timer DT entry to:
timer0: timer@f0008000 {
compatible = "nuvoton,npcm7xx-timer";
interrupts = <0 32 4>;
reg = <0xf0008000 0x1000>;
clocks = <&clk NPCM7XX_CLK_TIMER>;
};
> +
> + watchdog0: watchdog@f0008000 {
> + compatible = "nuvoton,npcm750-wdt";
> + interrupts = <0 47 4>;
> + reg = <0xf0008000 0x1000>;
> + status = "disabled";
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + watchdog1: watchdog@f0009000 {
> + compatible = "nuvoton,npcm750-wdt";
> + interrupts = <0 48 4>;
> + reg = <0xf0009000 0x1000>;
> + status = "disabled";
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + watchdog2: watchdog@f000a000 {
> + compatible = "nuvoton,npcm750-wdt";
> + interrupts = <0 49 4>;
> + reg = <0xf000a000 0x1000>;
> + status = "disabled";
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> + };
> +
> + serial0: serial0@f0001000 {
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0001000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 2 4>;
> + status = "disabled";
> + };
> +
> + serial1: serial1@f0002000 {
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0002000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 3 4>;
> + status = "disabled";
> + };
> +
> + serial2: serial2@f0003000 {
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0003000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 4 4>;
> + status = "disabled";
> + };
> +
> + serial3: serial3@f0004000 {
> + compatible = "nuvoton,npcm750-uart";
> + reg = <0xf0004000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
> + interrupts = <0 5 4>;
> + status = "disabled";
> + };
> + };
> + };
> +};
> diff --git a/include/dt-bindings/clock/nuvoton,npcm7xx-clks.h b/include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
> new file mode 100644
> index 000000000000..c69d3bbf7e42
> --- /dev/null
> +++ b/include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
> @@ -0,0 +1,39 @@
> +/*
> + * Copyright (C) 2016 Nuvoton Technologies, [email protected]
> + *
> + * This software is licensed under the terms of the GNU General Public
> + * License version 2, as published by the Free Software Foundation, and
> + * may be copied, distributed, and modified under those terms.
> + */
> +
> +#ifndef _DT_BINDINGS_CLK_NPCM7XX_H
> +#define _DT_BINDINGS_CLK_NPCM7XX_H
> +
> +#define NPCM7XX_CLK_PLL0 0
> +#define NPCM7XX_CLK_PLL1 1
> +#define NPCM7XX_CLK_PLL2 2
> +#define NPCM7XX_CLK_GFX 3
> +#define NPCM7XX_CLK_APB1 4
> +#define NPCM7XX_CLK_APB2 5
> +#define NPCM7XX_CLK_APB3 6
> +#define NPCM7XX_CLK_APB4 7
> +#define NPCM7XX_CLK_APB5 8
> +#define NPCM7XX_CLK_MC 9
> +#define NPCM7XX_CLK_CPU 10
> +#define NPCM7XX_CLK_SPI0 11
> +#define NPCM7XX_CLK_SPI3 12
> +#define NPCM7XX_CLK_SPIX 13
> +#define NPCM7XX_CLK_UART_CORE 14
> +#define NPCM7XX_CLK_TIMER 15
> +#define NPCM7XX_CLK_HOST_UART 16
> +#define NPCM7XX_CLK_MMC 17
> +#define NPCM7XX_CLK_SDHC 18
> +#define NPCM7XX_CLK_ADC 19
> +#define NPCM7XX_CLK_GFX_MEM 20
> +#define NPCM7XX_CLK_USB_BRIDGE 21
> +#define NPCM7XX_CLK_AXI 22
> +#define NPCM7XX_CLK_AHB 23
> +#define NPCM7XX_CLK_EMC 24
> +#define NPCM7XX_CLK_GMAC 25
> +
> +#endif
> --
> 2.14.1.690.gbb1197296e-goog
>
Thanks!
From 1581807154089246805@xxx Fri Oct 20 19:47:36 +0000 2017
X-GM-THRID: 1579010319724238086
X-Gmail-Labels: Inbox,Category Forums
Sorry for the delay. A couple questions:
On Wed, Sep 27, 2017 at 2:42 PM, Rob Herring <[email protected]> wrote:
> On Tue, Sep 19, 2017 at 03:40:00PM -0700, Brendan Higgins wrote:
>> Add a common device tree for all Nuvoton NPCM750 BMCs and a board
>> specific device tree for the NPCM750 (Poleg) evaluation board.
>>
>> Signed-off-by: Brendan Higgins <[email protected]>
>> Reviewed-by: Tomer Maimon <[email protected]>
>> Reviewed-by: Avi Fishman <[email protected]>
>> Reviewed-by: Joel Stanley <[email protected]>
>> Tested-by: Tomer Maimon <[email protected]>
>> Tested-by: Avi Fishman <[email protected]>
>> ---
>> .../arm/cpu-enable-method/nuvoton,npcm7xx-smp | 42 ++++
>> .../devicetree/bindings/arm/npcm/npcm.txt | 6 +
>> arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 48 +++++
>> arch/arm/boot/dts/nuvoton-npcm750.dtsi | 211 +++++++++++++++++++++
>> include/dt-bindings/clock/nuvoton,npcm7xx-clks.h | 39 ++++
>> 5 files changed, 346 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
>> create mode 100644 Documentation/devicetree/bindings/arm/npcm/npcm.txt
>> create mode 100644 arch/arm/boot/dts/nuvoton-npcm750-evb.dts
>> create mode 100644 arch/arm/boot/dts/nuvoton-npcm750.dtsi
>> create mode 100644 include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
>>
>> diff --git a/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
>> new file mode 100644
>> index 000000000000..e81f85b400cf
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm7xx-smp
>> @@ -0,0 +1,42 @@
>> +=========================================================
>> +Secondary CPU enable-method "nuvoton,npcm7xx-smp" binding
>> +=========================================================
>> +
>> +To apply to all CPUs, a single "nuvoton,npcm7xx-smp" enable method should be
>> +defined in the "cpus" node.
>> +
>> +Enable method name: "nuvoton,npcm7xx-smp"
>> +Compatible machines: "nuvoton,npcm750"
>> +Compatible CPUs: "arm,cortex-a9"
>> +Related properties: (none)
>> +
>> +Note:
>> +This enable method needs valid nodes compatible with "arm,cortex-a9-scu" and
>> +"nuvoton,npcm750-gcr".
>> +
>> +Example:
>> +
>> + cpus {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + enable-method = "nuvoton,npcm7xx-smp";
>> +
>> + cpu@0 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a9";
>> + clocks = <&clk NPCM7XX_CLK_CPU>;
>> + clock-names = "clk_cpu";
>> + reg = <0>;
>> + next-level-cache = <&L2>;
>> + };
>> +
>> + cpu@1 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a9";
>> + clocks = <&clk NPCM7XX_CLK_CPU>;
>> + clock-names = "clk_cpu";
>> + reg = <1>;
>> + next-level-cache = <&L2>;
>> + };
>> + };
>> +
>> diff --git a/Documentation/devicetree/bindings/arm/npcm/npcm.txt b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
>> new file mode 100644
>> index 000000000000..2d87d9ecea85
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/npcm/npcm.txt
>> @@ -0,0 +1,6 @@
>> +NPCM Platforms Device Tree Bindings
>> +-----------------------------------
>> +NPCM750 SoC
>> +Required root node properties:
>> + - compatible = "nuvoton,npcm750";
>> +
>> diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
>> new file mode 100644
>> index 000000000000..a0675e584125
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
>> @@ -0,0 +1,48 @@
>> +/*
>> + * DTS file for all NPCM750 SoCs
>> + *
>> + * Copyright 2012 Tomer Maimon <[email protected]>
>> + *
>> + * The code contained herein is licensed under the GNU General Public
>> + * License. You may obtain a copy of the GNU General Public License
>> + * Version 2 or later at the following locations:
>> + *
>> + * http://www.opensource.org/licenses/gpl-license.html
>> + * http://www.gnu.org/copyleft/gpl.html
>> + */
>> +
>> +/dts-v1/;
>> +#include "nuvoton-npcm750.dtsi"
>> +
>> +/ {
>> + model = "Nuvoton npcm750 Development Board (Device Tree)";
>> + compatible = "nuvoton,npcm750";
>> +
>> + chosen {
>> + stdout-path = &serial3;
>> + };
>> +
>> + memory {
>> + reg = <0 0x40000000>;
>> + };
>> +};
>> +
>> +&watchdog1 {
>> + status = "okay";
>> +};
>> +
>> +&serial0 {
>> + status = "okay";
>> +};
>> +
>> +&serial1 {
>> + status = "okay";
>> +};
>> +
>> +&serial2 {
>> + status = "okay";
>> +};
>> +
>> +&serial3 {
>> + status = "okay";
>> +};
>> diff --git a/arch/arm/boot/dts/nuvoton-npcm750.dtsi b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
>> new file mode 100644
>> index 000000000000..5d8a48e44274
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
>> @@ -0,0 +1,211 @@
>> +/*
>> + * DTSi file for the NPCM750 SoC
>> + *
>> + * Copyright 2012 Tomer Maimon <[email protected]>
>> + *
>> + * The code contained herein is licensed under the GNU General Public
>> + * License. You may obtain a copy of the GNU General Public License
>> + * Version 2 or later at the following locations:
>> + *
>> + * http://www.opensource.org/licenses/gpl-license.html
>> + * http://www.gnu.org/copyleft/gpl.html
>> + */
>> +
>> +#include <dt-bindings/interrupt-controller/arm-gic.h>
>> +#include <dt-bindings/clock/nuvoton,npcm7xx-clks.h>
>> +
>> +/ {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + interrupt-parent = <&gic>;
>> +
>> + cpus {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + enable-method = "nuvoton,npcm7xx-smp";
>> +
>> + cpu@0 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a9";
>> + clocks = <&clk NPCM7XX_CLK_CPU>;
>> + clock-names = "clk_cpu";
>> + reg = <0>;
>> + next-level-cache = <&l2>;
>> + };
>> +
>> + cpu@1 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a9";
>> + clocks = <&clk NPCM7XX_CLK_CPU>;
>> + clock-names = "clk_cpu";
>> + reg = <1>;
>> + next-level-cache = <&l2>;
>> + };
>> + };
>> +
>
>> + gcr: gcr@f0800000 {
>> + compatible = "nuvoton,npcm750-gcr", "syscon",
>> + "simple-mfd";
>> + reg = <0xf0800000 0x1000>;
>> + };
>> +
>> + scu: scu@f03fe000 {
>> + compatible = "arm,cortex-a9-scu";
>> + reg = <0xf03fe000 0x1000>;
>> + };
>> +
>> + l2: cache-controller@f03fc000 {
>> + compatible = "arm,pl310-cache";
>> + reg = <0xf03fc000 0x1000>;
>> + interrupts = <0 21 4>;
>> + cache-unified;
>> + cache-level = <2>;
>> + clocks = <&clk NPCM7XX_CLK_AXI>;
>> + };
>> +
>> + gic: interrupt-controller@f03ff000 {
>> + compatible = "arm,cortex-a9-gic";
>> + interrupt-controller;
>> + #interrupt-cells = <3>;
>> + reg = <0xf03ff000 0x1000>,
>> + <0xf03fe100 0x100>;
>> + };
>> +
>> + timer@f03fe600 {
>> + compatible = "arm,cortex-a9-twd-timer";
>> + reg = <0xf03fe600 0x20>;
>> + interrupts = <1 13 0x304>;
>> + clocks = <&clk NPCM7XX_CLK_TIMER>;
>> + };
>
> All these nodes with a memory mapped address should go under a bus node.
>
>> +
>> + ahb {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + compatible = "simple-bus";
>> + interrupt-parent = <&gic>;
>> + ranges = <0x80000000 0x80000000 0x40000000
>> + 0xc0000000 0xc0000000 0x00002000
>> + 0xc0008000 0xc0008000 0x00001000
>> + 0xe0800000 0xe0800000 0x00001000
>> + 0xe1000000 0xe1000000 0x00001000
>> + 0xe8000000 0xe8000000 0x08000000
>
> These addresses don't appear to be used. These are coming later? They
> could be collapsed down into 2 entries.
Yep, the other addresses will be used in later patch sets. This is part of why I
did not think that it made sense to do address translation here. I thought that
mapping such a large range of addresses would not make it any easier to read,
quite the opposite. At least addresses 'mapped' to the original address
correspond to the datasheet. So I am guessing that is not what you are asking
me to do.
Most of the large mappings (on the orders of MB) correspond to memory
locations mapped on either one of the SPI busses or PCIe busses, which when
implemented would likely get their own busses under ahb.
Are you asking that I remap just the addresses for controlling SoC devices
(0xf0xxxxxx), leave the external busses as is, and then remap those within their
busses when we get to that point?
I will try to implement what I think you are asking me to do and get a patch out
later today. Hopefully that will make this discussion easier.
>
> <0x80000000 0x80000000 0x40010000>
> <0xe0800000 0xe0800000 0x0f800000>
>
>> + /* APB start */
>> + 0xf0000000 0xf0000000 0x00005000
>> + 0xf0007000 0xf0007000 0x00005000
>> + 0xf0010000 0xf0010000 0x00008000
>> + 0xf0080000 0xf0080000 0x00010000
>> + 0xf009f000 0xf009f000 0x00001000
>> + 0xf0100000 0xf0100000 0x00005000
>> + 0xf0180000 0xf0180000 0x0000b000
>> + 0xf0200000 0xf0200000 0x00002000
>
> Not necessary to be so fine grained and shouldn't just be 1:1. So
> for these just:
>
> <0 0xf0000000 0x00900000>
>
>
>> + /* APB end */
>> + 0xf0800000 0xf0800000 0x000fc000
>> + 0xf8000000 0xf8000000 0x02000000
>> + 0xfb000000 0xfb000000 0x00002000>;
>
>> +
>> + clk: clock-controller@f0801000 {
>> + compatible = "nuvoton,npcm750-clk";
>> + #clock-cells = <1>;
>> + reg = <0xf0801000 0x1000>;
>
> Then this becomes: 0x801000 0x1000
>
>> + status = "okay";
>> + };
>> +
>> + /* external clock signal rg1refck, supplied by the phy */
>> + clk-rg1refck {
>> + compatible = "fixed-clock";
>> + #clock-cells = <0>;
>> + clock-frequency = <125000000>;
>> + };
>> +
>> + /* external clock signal rg2refck, supplied by the phy */
>> + clk-rg2refck {
>> + compatible = "fixed-clock";
>> + #clock-cells = <0>;
>> + clock-frequency = <125000000>;
>> + };
>> +
>> + clk-xin {
>> + compatible = "fixed-clock";
>> + #clock-cells = <0>;
>> + clock-frequency = <50000000>;
>> + };
>
> These clocks are not on the bus, so move them out of the bus node to the
> top level.
>
>> +
>> + apb {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + compatible = "simple-bus";
>> + interrupt-parent = <&gic>;
>> + ranges = <0xf0000000 0xf0000000 0x00005000
>> + 0xf0007000 0xf0007000 0x00005000
>> + 0xf0010000 0xf0010000 0x00008000
>> + 0xf0080000 0xf0080000 0x00010000
>> + 0xf009f000 0xf009f000 0x00001000
>> + 0xf0100000 0xf0100000 0x00005000
>> + 0xf0180000 0xf0180000 0x0000b000
>> + 0xf0200000 0xf0200000 0x00002000>;
>
> With above changes this can be just: <0 0 0x300000>
>
>> +
>> + timer0: timer@f0000000 {
>> + compatible = "nuvoton,npcm750-timer";
>> + interrupts = <0 32 4>;
>> + reg = <0xf0000000 0x1000>;
>> + clocks = <&clk NPCM7XX_CLK_TIMER>;
>> + };
>> +
>> + watchdog0: watchdog@f0008000 {
>> + compatible = "nuvoton,npcm750-wdt";
>> + interrupts = <0 47 4>;
>> + reg = <0xf0008000 0x1000>;
>> + status = "disabled";
>> + clocks = <&clk NPCM7XX_CLK_TIMER>;
>> + };
>> +
>> + watchdog1: watchdog@f0009000 {
>> + compatible = "nuvoton,npcm750-wdt";
>> + interrupts = <0 48 4>;
>> + reg = <0xf0009000 0x1000>;
>> + status = "disabled";
>> + clocks = <&clk NPCM7XX_CLK_TIMER>;
>> + };
>> +
>> + watchdog2: watchdog@f000a000 {
>> + compatible = "nuvoton,npcm750-wdt";
>> + interrupts = <0 49 4>;
>> + reg = <0xf000a000 0x1000>;
>> + status = "disabled";
>> + clocks = <&clk NPCM7XX_CLK_TIMER>;
>> + };
>> +
>> + serial0: serial0@f0001000 {
>
> Sorry I miss this earlier, but need to drop the 0 in the node names.
> IOW, should be "serial@f0001000".
>
>> + compatible = "nuvoton,npcm750-uart";
>> + reg = <0xf0001000 0x1000>;
>> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
>> + interrupts = <0 2 4>;
>> + status = "disabled";
>> + };
>> +
>> + serial1: serial1@f0002000 {
>> + compatible = "nuvoton,npcm750-uart";
>> + reg = <0xf0002000 0x1000>;
>> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
>> + interrupts = <0 3 4>;
>> + status = "disabled";
>> + };
>> +
>> + serial2: serial2@f0003000 {
>> + compatible = "nuvoton,npcm750-uart";
>> + reg = <0xf0003000 0x1000>;
>> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
>> + interrupts = <0 4 4>;
>> + status = "disabled";
>> + };
>> +
>> + serial3: serial3@f0004000 {
>> + compatible = "nuvoton,npcm750-uart";
>> + reg = <0xf0004000 0x1000>;
>> + clocks = <&clk NPCM7XX_CLK_UART_CORE>;
>> + interrupts = <0 5 4>;
>> + status = "disabled";
>> + };
>> + };
>> + };
>> +};
Thanks!
From 1579730790033999320@xxx Wed Sep 27 21:44:41 +0000 2017
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