diff options
Diffstat (limited to 'arch/arm/mach-w90x900')
21 files changed, 976 insertions, 0 deletions
diff --git a/arch/arm/mach-w90x900/Kconfig b/arch/arm/mach-w90x900/Kconfig new file mode 100644 index 0000000..8e4178f --- /dev/null +++ b/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 diff --git a/arch/arm/mach-w90x900/Makefile b/arch/arm/mach-w90x900/Makefile new file mode 100644 index 0000000..0c0c1d6 --- /dev/null +++ b/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 diff --git a/arch/arm/mach-w90x900/Makefile.boot b/arch/arm/mach-w90x900/Makefile.boot new file mode 100644 index 0000000..a057b54 --- /dev/null +++ b/arch/arm/mach-w90x900/Makefile.boot @@ -0,0 +1,3 @@ +zreladdr-y := 0x00008000 +params_phys-y := 0x00000100 + diff --git a/arch/arm/mach-w90x900/cpu.h b/arch/arm/mach-w90x900/cpu.h new file mode 100644 index 0000000..40ff408 --- /dev/null +++ b/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, \ +} diff --git a/arch/arm/mach-w90x900/include/mach/entry-macro.S b/arch/arm/mach-w90x900/include/mach/entry-macro.S new file mode 100644 index 0000000..d39aca5 --- /dev/null +++ b/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 diff --git a/arch/arm/mach-w90x900/include/mach/hardware.h b/arch/arm/mach-w90x900/include/mach/hardware.h new file mode 100644 index 0000000..fe3c626 --- /dev/null +++ b/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 */ diff --git a/arch/arm/mach-w90x900/include/mach/io.h b/arch/arm/mach-w90x900/include/mach/io.h new file mode 100644 index 0000000..d96ab99 --- /dev/null +++ b/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 diff --git a/arch/arm/mach-w90x900/include/mach/irqs.h b/arch/arm/mach-w90x900/include/mach/irqs.h new file mode 100644 index 0000000..1c583f9 --- /dev/null +++ b/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 */ diff --git a/arch/arm/mach-w90x900/include/mach/map.h b/arch/arm/mach-w90x900/include/mach/map.h new file mode 100644 index 0000000..79320eb --- /dev/null +++ b/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 */ diff --git a/arch/arm/mach-w90x900/include/mach/memory.h b/arch/arm/mach-w90x900/include/mach/memory.h new file mode 100644 index 0000000..971b807 --- /dev/null +++ b/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 diff --git a/arch/arm/mach-w90x900/include/mach/regs-irq.h b/arch/arm/mach-w90x900/include/mach/regs-irq.h new file mode 100644 index 0000000..8a3185f --- /dev/null +++ b/arch/arm/mach-w90x900/include/mach/regs-irq.h @@ -0,0 +1,51 @@ +/* + * arch/arm/mach-w90x900/include/mach/regs-irq.h + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * Based on arch/arm/mach-s3c2410/include/mach/regs-irq.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_REGS_IRQ_H +#define ___ASM_ARCH_REGS_IRQ_H + +/* Advance Interrupt Controller (AIC) Registers */ + +#define AIC_BA W90X900_VA_IRQ + +#define REG_AIC_IRQSC (AIC_BA+0x80) +#define REG_AIC_GEN (AIC_BA+0x84) +#define REG_AIC_GASR (AIC_BA+0x88) +#define REG_AIC_GSCR (AIC_BA+0x8C) +#define REG_AIC_IRSR (AIC_BA+0x100) +#define REG_AIC_IASR (AIC_BA+0x104) +#define REG_AIC_ISR (AIC_BA+0x108) +#define REG_AIC_IPER (AIC_BA+0x10C) +#define REG_AIC_ISNR (AIC_BA+0x110) +#define REG_AIC_IMR (AIC_BA+0x114) +#define REG_AIC_OISR (AIC_BA+0x118) +#define REG_AIC_MECR (AIC_BA+0x120) +#define REG_AIC_MDCR (AIC_BA+0x124) +#define REG_AIC_SSCR (AIC_BA+0x128) +#define REG_AIC_SCCR (AIC_BA+0x12C) +#define REG_AIC_EOSCR (AIC_BA+0x130) +#define AIC_IPER (0x10C) +#define AIC_ISNR (0x110) + +/*16-18 bits of REG_AIC_GEN define irq(2-4) group*/ + +#define TIMER2_IRQ (1 << 16) +#define TIMER3_IRQ (1 << 17) +#define TIMER4_IRQ (1 << 18) +#define TIME_GROUP_IRQ (TIMER2_IRQ|TIMER3_IRQ|TIMER4_IRQ) + +#endif /* ___ASM_ARCH_REGS_IRQ_H */ diff --git a/arch/arm/mach-w90x900/include/mach/regs-serial.h b/arch/arm/mach-w90x900/include/mach/regs-serial.h new file mode 100644 index 0000000..f08fa0d --- /dev/null +++ b/arch/arm/mach-w90x900/include/mach/regs-serial.h @@ -0,0 +1,59 @@ +/* + * arch/arm/mach-w90x900/include/mach/regs-serial.h + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * Based on arch/arm/mach-s3c2410/include/mach/regs-serial.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_REGS_SERIAL_H +#define __ASM_ARM_REGS_SERIAL_H + +#define UART0_BA W90X900_VA_UART +#define UART1_BA (W90X900_VA_UART+0x100) +#define UART2_BA (W90X900_VA_UART+0x200) +#define UART3_BA (W90X900_VA_UART+0x300) +#define UART4_BA (W90X900_VA_UART+0x400) + +#define UART0_PA W90X900_PA_UART +#define UART1_PA (W90X900_PA_UART+0x100) +#define UART2_PA (W90X900_PA_UART+0x200) +#define UART3_PA (W90X900_PA_UART+0x300) +#define UART4_PA (W90X900_PA_UART+0x400) + +#ifndef __ASSEMBLY__ + +struct w90x900_uart_clksrc { + const char *name; + unsigned int divisor; + unsigned int min_baud; + unsigned int max_baud; +}; + +struct w90x900_uartcfg { + unsigned char hwport; + unsigned char unused; + unsigned short flags; + unsigned long uart_flags; + + unsigned long ucon; + unsigned long ulcon; + unsigned long ufcon; + + struct w90x900_uart_clksrc *clocks; + unsigned int clocks_size; +}; + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_ARM_REGS_SERIAL_H */ + diff --git a/arch/arm/mach-w90x900/include/mach/regs-timer.h b/arch/arm/mach-w90x900/include/mach/regs-timer.h new file mode 100644 index 0000000..8f39062 --- /dev/null +++ b/arch/arm/mach-w90x900/include/mach/regs-timer.h @@ -0,0 +1,42 @@ +/* + * arch/arm/mach-w90x900/include/mach/regs-timer.h + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * Based on arch/arm/mach-s3c2410/include/mach/regs-timer.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_REGS_TIMER_H +#define __ASM_ARCH_REGS_TIMER_H + +/* Timer Registers */ + +#define TMR_BA W90X900_VA_TIMER +#define REG_TCSR0 (TMR_BA+0x00) +#define REG_TCSR1 (TMR_BA+0x04) +#define REG_TICR0 (TMR_BA+0x08) +#define REG_TICR1 (TMR_BA+0x0C) +#define REG_TDR0 (TMR_BA+0x10) +#define REG_TDR1 (TMR_BA+0x14) +#define REG_TISR (TMR_BA+0x18) +#define REG_WTCR (TMR_BA+0x1C) +#define REG_TCSR2 (TMR_BA+0x20) +#define REG_TCSR3 (TMR_BA+0x24) +#define REG_TICR2 (TMR_BA+0x28) +#define REG_TICR3 (TMR_BA+0x2C) +#define REG_TDR2 (TMR_BA+0x30) +#define REG_TDR3 (TMR_BA+0x34) +#define REG_TCSR4 (TMR_BA+0x40) +#define REG_TICR4 (TMR_BA+0x48) +#define REG_TDR4 (TMR_BA+0x50) + +#endif /* __ASM_ARCH_REGS_TIMER_H */ diff --git a/arch/arm/mach-w90x900/include/mach/system.h b/arch/arm/mach-w90x900/include/mach/system.h new file mode 100644 index 0000000..93753f9 --- /dev/null +++ b/arch/arm/mach-w90x900/include/mach/system.h @@ -0,0 +1,28 @@ +/* + * arch/arm/mach-w90x900/include/mach/system.h + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * Based on arch/arm/mach-s3c2410/include/mach/system.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. + * + */ + +#include <asm/proc-fns.h> + +static void arch_idle(void) +{ +} + +static void arch_reset(char mode) +{ + cpu_reset(0); +} + diff --git a/arch/arm/mach-w90x900/include/mach/timex.h b/arch/arm/mach-w90x900/include/mach/timex.h new file mode 100644 index 0000000..164dce0 --- /dev/null +++ b/arch/arm/mach-w90x900/include/mach/timex.h @@ -0,0 +1,25 @@ +/* + * arch/arm/mach-w90x900/include/mach/timex.h + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * Based on arch/arm/mach-s3c2410/include/mach/timex.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_TIMEX_H +#define __ASM_ARCH_TIMEX_H + +/* CLOCK_TICK_RATE Now, I don't use it. */ + +#define CLOCK_TICK_RATE 15000000 + +#endif /* __ASM_ARCH_TIMEX_H */ diff --git a/arch/arm/mach-w90x900/include/mach/uncompress.h b/arch/arm/mach-w90x900/include/mach/uncompress.h new file mode 100644 index 0000000..050d9fe --- /dev/null +++ b/arch/arm/mach-w90x900/include/mach/uncompress.h @@ -0,0 +1,40 @@ +/* + * arch/arm/mach-w90x900/include/mach/uncompress.h + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * Based on arch/arm/mach-s3c2410/include/mach/uncompress.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_UNCOMPRESS_H +#define __ASM_ARCH_UNCOMPRESS_H + +/* Defines for UART registers */ + +#include <mach/regs-serial.h> +#include <mach/map.h> + +#define arch_decomp_wdog() + +static void putc(int ch) +{ +} + +static inline void flush(void) +{ +} + +static void arch_decomp_setup(void) +{ +} + +#endif/* __ASM_W90X900_UNCOMPRESS_H */ diff --git a/arch/arm/mach-w90x900/include/mach/vmalloc.h b/arch/arm/mach-w90x900/include/mach/vmalloc.h new file mode 100644 index 0000000..2f9dfb9 --- /dev/null +++ b/arch/arm/mach-w90x900/include/mach/vmalloc.h @@ -0,0 +1,23 @@ +/* + * arch/arm/mach-w90x900/include/mach/vmalloc.h + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * Based on arch/arm/mach-s3c2410/include/mach/vmalloc.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_VMALLOC_H +#define __ASM_ARCH_VMALLOC_H + +#define VMALLOC_END (0xE0000000) + +#endif /* __ASM_ARCH_VMALLOC_H */ diff --git a/arch/arm/mach-w90x900/irq.c b/arch/arm/mach-w90x900/irq.c new file mode 100644 index 0000000..0b4fc19 --- /dev/null +++ b/arch/arm/mach-w90x900/irq.c @@ -0,0 +1,76 @@ +/* + * linux/arch/arm/mach-w90x900/irq.c + * + * based on linux/arch/arm/plat-s3c24xx/irq.c by Ben Dooks + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * 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 as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/ptrace.h> +#include <linux/sysdev.h> +#include <linux/io.h> + +#include <asm/irq.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/regs-irq.h> + +static void w90x900_irq_mask(unsigned int irq) +{ + __raw_writel(1 << irq, REG_AIC_MDCR); +} + +/* + * By the w90p910 spec,any irq,only write 1 + * to REG_AIC_EOSCR for ACK + */ + +static void w90x900_irq_ack(unsigned int irq) +{ + __raw_writel(0x01, REG_AIC_EOSCR); +} + +static void w90x900_irq_unmask(unsigned int irq) +{ + unsigned long mask; + + if (irq == IRQ_T_INT_GROUP) { + mask = __raw_readl(REG_AIC_GEN); + __raw_writel(TIME_GROUP_IRQ | mask, REG_AIC_GEN); + __raw_writel(1 << IRQ_T_INT_GROUP, REG_AIC_MECR); + } + __raw_writel(1 << irq, REG_AIC_MECR); +} + +static struct irq_chip w90x900_irq_chip = { + .ack = w90x900_irq_ack, + .mask = w90x900_irq_mask, + .unmask = w90x900_irq_unmask, +}; + +void __init w90x900_init_irq(void) +{ + int irqno; + + __raw_writel(0xFFFFFFFE, REG_AIC_MDCR); + + for (irqno = IRQ_WDT; irqno <= IRQ_ADC; irqno++) { + set_irq_chip(irqno, &w90x900_irq_chip); + set_irq_handler(irqno, handle_level_irq); + set_irq_flags(irqno, IRQF_VALID); + } +} diff --git a/arch/arm/mach-w90x900/mach-w90p910evb.c b/arch/arm/mach-w90x900/mach-w90p910evb.c new file mode 100644 index 0000000..9307a24 --- /dev/null +++ b/arch/arm/mach-w90x900/mach-w90p910evb.c @@ -0,0 +1,72 @@ +/* + * linux/arch/arm/mach-w90x900/mach-w90p910evb.c + * + * Based on mach-s3c2410/mach-smdk2410.c by Jonas Dietsche + * + * Copyright (C) 2008 Nuvoton technology corporation + * All rights reserved. + * + * 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 as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/platform_device.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> +#include <asm/mach-types.h> + +#include <mach/regs-serial.h> + +#include "cpu.h" + +static struct map_desc w90p910_iodesc[] __initdata = { +}; + +static struct w90x900_uartcfg w90p910_uartcfgs[] = { + W90X900_UARTCFG(0, 0, 0, 0, 0), + W90X900_UARTCFG(1, 0, 0, 0, 0), + W90X900_UARTCFG(2, 0, 0, 0, 0), + W90X900_UARTCFG(3, 0, 0, 0, 0), + W90X900_UARTCFG(4, 0, 0, 0, 0), +}; + +/*Here should be your evb resourse,such as LCD*/ + +static struct platform_device *w90p910evb_dev[] __initdata = { +}; + +static void __init w90p910evb_map_io(void) +{ + w90p910_map_io(w90p910_iodesc, ARRAY_SIZE(w90p910_iodesc)); + w90p910_init_clocks(0); + w90p910_init_uarts(w90p910_uartcfgs, ARRAY_SIZE(w90p910_uartcfgs)); +} + +static void __init w90p910evb_init(void) +{ + platform_add_devices(w90p910evb_dev, ARRAY_SIZE(w90p910evb_dev)); +} + +MACHINE_START(W90P910EVB, "W90P910EVB") + /* Maintainer: Wan ZongShun */ + .phys_io = W90X900_PA_UART, + .io_pg_offst = (((u32)W90X900_VA_UART) >> 18) & 0xfffc, + .boot_params = 0, + .map_io = w90p910evb_map_io, + .init_irq = w90x900_init_irq, + .init_machine = w90p910evb_init, + .timer = &w90x900_timer, +MACHINE_END diff --git a/arch/arm/mach-w90x900/time.c b/arch/arm/mach-w90x900/time.c new file mode 100644 index 0000000..3a69e38 --- /dev/null +++ b/arch/arm/mach-w90x900/time.c @@ -0,0 +1,80 @@ +/* + * linux/arch/arm/mach-w90x900/time.c + * + * Based on linux/arch/arm/plat-s3c24xx/time.c by Ben Dooks + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * 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 as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/leds.h> + +#include <asm/mach-types.h> +#include <asm/mach/irq.h> +#include <asm/mach/time.h> + +#include <mach/system.h> +#include <mach/map.h> +#include <mach/regs-timer.h> + +static unsigned long w90x900_gettimeoffset(void) +{ + return 0; +} + +/*IRQ handler for the timer*/ + +static irqreturn_t +w90x900_timer_interrupt(int irq, void *dev_id) +{ + timer_tick(); + __raw_writel(0x01, REG_TISR); /* clear TIF0 */ + return IRQ_HANDLED; +} + +static struct irqaction w90x900_timer_irq = { + .name = "w90x900 Timer Tick", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, + .handler = w90x900_timer_interrupt, +}; + +/*Set up timer reg.*/ + +static void w90x900_timer_setup(void) +{ + __raw_writel(0, REG_TCSR0); + __raw_writel(0, REG_TCSR1); + __raw_writel(0, REG_TCSR2); + __raw_writel(0, REG_TCSR3); + __raw_writel(0, REG_TCSR4); + __raw_writel(0x1F, REG_TISR); + __raw_writel(15000000/(100 * 100), REG_TICR0); + __raw_writel(0x68000063, REG_TCSR0); +} + +static void __init w90x900_timer_init(void) +{ + w90x900_timer_setup(); + setup_irq(IRQ_TIMER0, &w90x900_timer_irq); +} + +struct sys_timer w90x900_timer = { + .init = w90x900_timer_init, + .offset = w90x900_gettimeoffset, + .resume = w90x900_timer_setup +}; diff --git a/arch/arm/mach-w90x900/w90p910.c b/arch/arm/mach-w90x900/w90p910.c new file mode 100644 index 0000000..aa783bc --- /dev/null +++ b/arch/arm/mach-w90x900/w90p910.c @@ -0,0 +1,134 @@ +/* + * linux/arch/arm/mach-w90x900/w90p910.c + * + * Based on linux/arch/arm/plat-s3c24xx/s3c244x.c by Ben Dooks + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * W90P910 cpu support + * + * 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. + * + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> +#include <asm/irq.h> + +#include <mach/hardware.h> +#include <mach/regs-serial.h> + +#include "cpu.h" + +/*W90P910 has five uarts*/ + +#define MAX_UART_COUNT 5 +static int uart_count; +static struct platform_device *uart_devs[MAX_UART_COUNT-1]; + +/* Initial IO mappings */ + +static struct map_desc w90p910_iodesc[] __initdata = { + IODESC_ENT(IRQ), + IODESC_ENT(GCR), + IODESC_ENT(UART), + IODESC_ENT(TIMER), + IODESC_ENT(EBI), + /*IODESC_ENT(LCD),*/ +}; + +/*Init the dev resource*/ + +static W90X900_RES(UART0); +static W90X900_RES(UART1); +static W90X900_RES(UART2); +static W90X900_RES(UART3); +static W90X900_RES(UART4); +static W90X900_DEVICE(uart0, UART0, 0, "w90x900-uart"); +static W90X900_DEVICE(uart1, UART1, 1, "w90x900-uart"); +static W90X900_DEVICE(uart2, UART2, 2, "w90x900-uart"); +static W90X900_DEVICE(uart3, UART3, 3, "w90x900-uart"); +static W90X900_DEVICE(uart4, UART4, 4, "w90x900-uart"); + +static struct platform_device *uart_devices[] __initdata = { + &w90x900_uart0, + &w90x900_uart1, + &w90x900_uart2, + &w90x900_uart3, + &w90x900_uart4 +}; + +/*Init W90P910 uart device*/ + +void __init w90p910_init_uarts(struct w90x900_uartcfg *cfg, int no) +{ + struct platform_device *platdev; + int uart, uartdev; + + /*By min() to judge count of uart be used indeed*/ + + uartdev = ARRAY_SIZE(uart_devices); + no = min(uartdev, no); + + for (uart = 0; uart < no; uart++, cfg++) { + if (cfg->hwport != uart) + printk(KERN_ERR "w90x900_uartcfg[%d] error\n", uart); + platdev = uart_devices[cfg->hwport]; + uart_devs[uart] = platdev; + platdev->dev.platform_data = cfg; + } + uart_count = uart; +} + +/*Init W90P910 evb io*/ + +void __init w90p910_map_io(struct map_desc *mach_desc, int mach_size) +{ + unsigned long idcode = 0x0; + + iotable_init(w90p910_iodesc, ARRAY_SIZE(w90p910_iodesc)); + + idcode = __raw_readl(W90X900PDID); + if (idcode != W90P910_CPUID) + printk(KERN_ERR "CPU type 0x%08lx is not W90P910\n", idcode); +} + +/*Init W90P910 clock*/ + +void __init w90p910_init_clocks(int xtal) +{ +} + +static int __init w90p910_init_cpu(void) +{ + return 0; +} + +static int __init w90x900_arch_init(void) +{ + int ret; + + ret = w90p910_init_cpu(); + if (ret != 0) + return ret; + + return platform_add_devices(uart_devs, uart_count); + +} +arch_initcall(w90x900_arch_init); |
