[PATCH v2 01/10] ARM: NUC900: Add nuc970 machine support

Wan Zongshun
2016-07-10T07:27:21Z

NUC970 is a new SoC of Nuvoton nuc900 series, this patch is
to add machine file support for it.

Signed-off-by: Wan Zongshun <mcuos.com@gmail.com>
---
arch/arm/mach-w90x900/Kconfig | 20 ++++++++++++++++++++
arch/arm/mach-w90x900/Makefile | 3 +++
arch/arm/mach-w90x900/nuc900.c | 41 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 64 insertions(+)
create mode 100644 arch/arm/mach-w90x900/nuc900.c

diff --git a/arch/arm/mach-w90x900/Kconfig b/arch/arm/mach-w90x900/Kconfig
index 69bab32..80ab00c 100644
--- a/arch/arm/mach-w90x900/Kconfig
+++ b/arch/arm/mach-w90x900/Kconfig
@@ -15,6 +15,26 @@ config CPU_NUC960
help
Support for NUCP960 of Nuvoton NUC900 CPUs.

+config SOC_NUC970
+ bool "Nuvoton NUC970 SoC support"
+ select COMMON_CLK
+ select GENERIC_IRQ_CHIP
+ select HAVE_CLK_PREPARE
+ select IRQ_DOMAIN
+ select MULTI_IRQ_HANDLER
+ select MFD_SYSCON
+ select NUC900_TIMER
+ select SOC_NUC900
+ select USE_OF
+ help
+ Support for NUC970 of Nuvoton NUC900 SoCs.
+ The NUC970 series runs up to 300 MHz, with 16 KB I-cache,
+ 16 KB D-cache and MMU, 56KB embedded SRAM and 16 KB Internal
+ Boot ROM for booting from USB, NAND and SPI FLASH.
+ Detailed information please check the following link:
+ https://github.com/zswan/nuc900-document/blob/master/
+ NUC970_TechnicalReferenceManual_EN_Rev1.30.pdf
+
menu "W90P910 Machines"

config MACH_W90P910EVB
diff --git a/arch/arm/mach-w90x900/Makefile b/arch/arm/mach-w90x900/Makefile
index 828c032..d13ba5a 100644
--- a/arch/arm/mach-w90x900/Makefile
+++ b/arch/arm/mach-w90x900/Makefile
@@ -4,8 +4,10 @@

# Object file lists.

+ifeq ($(CONFIG_SOC_NUC970),)
obj-y := irq.o time.o mfp.o gpio.o clock.o
obj-y += clksel.o dev.o cpu.o
+endif
# W90X900 CPU support files

obj-$(CONFIG_CPU_W90P910) += nuc910.o
@@ -17,3 +19,4 @@ obj-$(CONFIG_CPU_NUC960) += nuc960.o
obj-$(CONFIG_MACH_W90P910EVB) += mach-nuc910evb.o
obj-$(CONFIG_MACH_W90P950EVB) += mach-nuc950evb.o
obj-$(CONFIG_MACH_W90N960EVB) += mach-nuc960evb.o
+obj-$(CONFIG_SOC_NUC970) += nuc900.o
diff --git a/arch/arm/mach-w90x900/nuc900.c b/arch/arm/mach-w90x900/nuc900.c
new file mode 100644
index 0000000..309c332
--- /dev/null
+++ b/arch/arm/mach-w90x900/nuc900.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2016 Wan Zongshun <mcuos.com@gmail.com>
+ *
+ * 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 <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/sys_soc.h>
+#include <linux/semaphore.h>
+
+#include <asm/system_misc.h>
+#include <asm/mach/arch.h>
+
+static void __init nuc900_machine_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char *nuc900_dt_compat[] __initconst = {
+ "nuvoton,nuc970",
+ NULL,
+};
+
+DT_MACHINE_START(nuc900_dt, "Nuvoton NUC900 (Device Tree Support)")
+ .init_machine = nuc900_machine_init,
+ .dt_compat = nuc900_dt_compat,
+MACHINE_END
--
2.7.4