[ARM] 5338/1: Add Nuvoton W90P910 Platform support

Add Nuvoton W90X900 ARM9 plat support to linux arm tree,
Now, this patch include only W90P910 EVB of W90P910 CPU,
Its driver is nothing.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/Kconfig

@@ -572,6 +572,13 @@ config ARCH_MSM
 	  interface to the ARM9 modem processor which runs the baseband stack
 	  and controls some vital subsystems (clock and power control, etc).
 
+config ARCH_W90X900
+	bool "Nuvoton W90X900 CPU"
+	select CPU_ARM926T
+	help
+		Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
+		can login www.mcuos.com or www.nuvoton.com to know more.
+
 endchoice
 
 source "arch/arm/mach-clps711x/Kconfig"
@@ -650,6 +657,8 @@ source "arch/arm/mach-ks8695/Kconfig"
 
 source "arch/arm/mach-msm/Kconfig"
 
+source "arch/arm/mach-w90x900/Kconfig"
+
 # Definitions to make life easier
 config ARCH_ACORN
 	bool

arch/arm/Makefile

@@ -143,6 +143,7 @@ endif
  machine-$(CONFIG_ARCH_MSM)	   := msm
  machine-$(CONFIG_ARCH_LOKI)       := loki
  machine-$(CONFIG_ARCH_MV78XX0)    := mv78xx0
+ machine-$(CONFIG_ARCH_W90X900)    := w90x900
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)
 # This is what happens if you forget the IOCS16 line.

arch/arm/mach-w90x900/Kconfig

@@ -0,0 +1,19 @@
+if ARCH_W90X900
+
+config CPU_W90P910
+	bool
+	help
+	  Support for W90P910 of Nuvoton W90X900 CPUs.
+
+menu "W90P910 Machines"
+
+config MACH_W90P910EVB
+	bool "Nuvoton W90P910 Evaluation Board"
+	default y
+	select CPU_W90P910
+	help
+	   Say Y here if you are using the Nuvoton W90P910EVB
+
+endmenu
+
+endif

arch/arm/mach-w90x900/Makefile

@@ -0,0 +1,15 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y				:= irq.o time.o
+
+# W90X900 CPU support files
+
+obj-$(CONFIG_CPU_W90P910)	+= w90p910.o
+
+# machine support
+
+obj-$(CONFIG_MACH_W90P910EVB)	+= mach-w90p910evb.o

arch/arm/mach-w90x900/Makefile.boot

@@ -0,0 +1,3 @@
+zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+

arch/arm/mach-w90x900/cpu.h

@@ -0,0 +1,77 @@
+/*
+ * arch/arm/mach-w90x900/cpu.h
+ *
+ * Based on linux/include/asm-arm/plat-s3c24xx/cpu.h by Ben Dooks
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Header file for W90X900 CPU support
+ *
+ * Wan ZongShun <mcuos.com@gmail.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.
+ *
+ */
+
+#define IODESC_ENT(y)                                  \
+{                                                      \
+       .virtual = (unsigned long)W90X900_VA_##y,       \
+       .pfn     = __phys_to_pfn(W90X900_PA_##y),       \
+       .length  = W90X900_SZ_##y,                      \
+       .type    = MT_DEVICE,                           \
+}
+
+/*Cpu identifier register*/
+
+#define W90X900PDID	W90X900_VA_GCR
+#define W90P910_CPUID	0x02900910
+#define W90P920_CPUID	0x02900920
+#define W90P950_CPUID	0x02900950
+#define W90N960_CPUID	0x02900960
+
+struct w90x900_uartcfg;
+struct map_desc;
+struct sys_timer;
+
+/* core initialisation functions */
+
+extern void w90x900_init_irq(void);
+extern void w90p910_init_io(struct map_desc *mach_desc, int size);
+extern void w90p910_init_uarts(struct w90x900_uartcfg *cfg, int no);
+extern void w90p910_init_clocks(int xtal);
+extern void w90p910_map_io(struct map_desc *mach_desc, int size);
+extern struct sys_timer w90x900_timer;
+
+#define W90X900_RES(name)				\
+struct resource w90x900_##name##_resource[] = {		\
+	[0] = {						\
+		.start = name##_PA,			\
+		.end   = name##_PA + 0x0ff,		\
+		.flags = IORESOURCE_MEM,		\
+	},						\
+	[1] = {						\
+		.start = IRQ_##name,			\
+		.end   = IRQ_##name,			\
+		.flags = IORESOURCE_IRQ,		\
+	}						\
+}
+
+#define W90X900_DEVICE(devname, regname, devid, platdevname)		\
+struct platform_device w90x900_##devname = {				\
+	.name		= platdevname,					\
+	.id		= devid,					\
+	.num_resources 	= ARRAY_SIZE(w90x900_##regname##_resource),	\
+	.resource 	= w90x900_##regname##_resource,			\
+}
+
+#define W90X900_UARTCFG(port, flag, uc, ulc, ufc)	\
+{							\
+		.hwport	= port,				\
+		.flags	= flag,				\
+		.ucon	= uc,				\
+		.ulcon	= ulc,				\
+		.ufcon	= ufc,				\
+}

arch/arm/mach-w90x900/include/mach/entry-macro.S

@@ -0,0 +1,34 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for W90P910-based platforms
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ */
+
+#include <mach/hardware.h>
+#include <mach/regs-irq.h>
+
+	.macro  get_irqnr_preamble, base, tmp
+	.endm
+
+	.macro  arch_ret_to_user, tmp1, tmp2
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+		mov	\base, #AIC_BA
+
+		ldr	\irqnr, [ \base, #AIC_IPER]
+		ldr	\irqnr, [ \base, #AIC_ISNR]
+		cmp	\irqnr, #0
+
+	.endm
+
+	/* currently don't need an disable_fiq macro */
+
+	.macro	disable_fiq
+	.endm

arch/arm/mach-w90x900/include/mach/hardware.h

@@ -0,0 +1,24 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/hardware.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * Based on arch/arm/mach-s3c2410/include/mach/hardware.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include <asm/sizes.h>
+#include <mach/map.h>
+
+#endif /* __ASM_ARCH_HARDWARE_H */

arch/arm/mach-w90x900/include/mach/io.h

@@ -0,0 +1,30 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/io.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * Based on arch/arm/mach-s3c2410/include/mach/io.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT	0xffffffff
+
+/*
+ * 1:1 mapping for ioremapped regions.
+ */
+
+#define __mem_pci(a)	(a)
+#define __io(a)		__typesafe_io(a)
+
+#endif

arch/arm/mach-w90x900/include/mach/irqs.h

@@ -0,0 +1,45 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/irqs.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * Based on arch/arm/mach-s3c2410/include/mach/irqs.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+/*
+ * we keep the first set of CPU IRQs out of the range of
+ * the ISA space, so that the PC104 has them to itself
+ * and we don't end up having to do horrible things to the
+ * standard ISA drivers....
+ *
+ */
+
+#define W90X900_IRQ(x)	(x)
+
+/* Main cpu interrupts */
+
+#define IRQ_WDT		W90X900_IRQ(1)
+#define IRQ_UART0	W90X900_IRQ(7)
+#define IRQ_UART1	W90X900_IRQ(8)
+#define IRQ_UART2	W90X900_IRQ(9)
+#define IRQ_UART3	W90X900_IRQ(10)
+#define IRQ_UART4	W90X900_IRQ(11)
+#define IRQ_TIMER0	W90X900_IRQ(12)
+#define IRQ_TIMER1	W90X900_IRQ(13)
+#define IRQ_T_INT_GROUP	W90X900_IRQ(14)
+#define IRQ_ADC		W90X900_IRQ(31)
+#define NR_IRQS		(IRQ_ADC+1)
+
+#endif /* __ASM_ARCH_IRQ_H */

arch/arm/mach-w90x900/include/mach/map.h

@@ -0,0 +1,76 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/map.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * Based on arch/arm/mach-s3c2410/include/mach/map.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef __ASM_ARCH_MAP_H
+#define __ASM_ARCH_MAP_H
+
+#ifndef __ASSEMBLY__
+#define W90X900_ADDR(x)		((void __iomem *)(0xF0000000 + (x)))
+#else
+#define W90X900_ADDR(x)		(0xF0000000 + (x))
+#endif
+
+#define AHB_IO_BASE		0xB0000000
+#define APB_IO_BASE		0xB8000000
+#define CLOCKPW_BASE		(APB_IO_BASE+0x200)
+#define AIC_IO_BASE		(APB_IO_BASE+0x2000)
+#define TIMER_IO_BASE		(APB_IO_BASE+0x1000)
+
+/*
+ * interrupt controller is the first thing we put in, to make
+ * the assembly code for the irq detection easier
+ */
+
+#define W90X900_VA_IRQ		W90X900_ADDR(0x00000000)
+#define W90X900_PA_IRQ		(0xB8002000)
+#define W90X900_SZ_IRQ		SZ_4K
+
+#define W90X900_VA_GCR		W90X900_ADDR(0x08002000)
+#define W90X900_PA_GCR		(0xB0000000)
+#define W90X900_SZ_GCR		SZ_4K
+
+/* Clock and Power management */
+
+#define W90X900_VA_CLKPWR	(W90X900_VA_GCR+0x200)
+#define W90X900_PA_CLKPWR	(0xB0000200)
+#define W90X900_SZ_CLKPWR	SZ_4K
+
+/* EBI management */
+
+#define W90X900_VA_EBI		W90X900_ADDR(0x00001000)
+#define W90X900_PA_EBI		(0xB0001000)
+#define W90X900_SZ_EBI		SZ_4K
+
+/* UARTs */
+
+#define W90X900_VA_UART		W90X900_ADDR(0x08000000)
+#define W90X900_PA_UART		(0xB8000000)
+#define W90X900_SZ_UART		SZ_4K
+
+/* Timers */
+
+#define W90X900_VA_TIMER	W90X900_ADDR(0x08001000)
+#define W90X900_PA_TIMER	(0xB8001000)
+#define W90X900_SZ_TIMER	SZ_4K
+
+/* GPIO ports */
+
+#define W90X900_VA_GPIO		W90X900_ADDR(0x08003000)
+#define W90X900_PA_GPIO		(0xB8003000)
+#define W90X900_SZ_GPIO		SZ_4K
+
+#endif /* __ASM_ARCH_MAP_H */

arch/arm/mach-w90x900/include/mach/memory.h

@@ -0,0 +1,23 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/memory.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * Based on arch/arm/mach-s3c2410/include/mach/memory.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PHYS_OFFSET	UL(0x00000000)
+
+#endif