From mboxrd@z Thu Jan 1 00:00:00 1970 From: hjk@linutronix.de (Hans J. Koch) Date: Wed, 26 May 2010 19:51:36 +0200 Subject: [PATCH 5/7 v6] Basic IO mappings for mach-tcc8k In-Reply-To: <20100526174240.GC2006@bluebox.local> References: <20100526174240.GC2006@bluebox.local> Message-ID: <20100526175136.GH2006@bluebox.local> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Map the IO ranges of TCC8xxx peripherals. Signed-off-by: "Hans J. Koch" --- arch/arm/mach-tcc8k/Makefile | 2 +- arch/arm/mach-tcc8k/io.c | 63 +++++++++++++++++++++++++++++++++++ arch/arm/plat-tcc/include/mach/io.h | 23 +++++++++++++ 3 files changed, 87 insertions(+), 1 deletions(-) create mode 100644 arch/arm/mach-tcc8k/io.c create mode 100644 arch/arm/plat-tcc/include/mach/io.h diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile index 5673868..09552e2 100644 --- a/arch/arm/mach-tcc8k/Makefile +++ b/arch/arm/mach-tcc8k/Makefile @@ -3,5 +3,5 @@ # # Common support -obj-y += clock.o irq.o time.o +obj-y += clock.o irq.o time.o io.o diff --git a/arch/arm/mach-tcc8k/io.c b/arch/arm/mach-tcc8k/io.c new file mode 100644 index 0000000..57825a0 --- /dev/null +++ b/arch/arm/mach-tcc8k/io.c @@ -0,0 +1,63 @@ +/* + * linux/arch/arm/mach-tcc8k/io.c + * + * (C) 2009 Hans J. Koch + * + * derived from TCC83xx io.c + * Copyright (C) Telechips, 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 +#include +#include + +#include + +#include + +/* + * The machine specific code may provide the extra mapping besides the + * default mapping provided here. + */ +static struct map_desc tcc8k_io_desc[] __initdata = { + { + .virtual = (unsigned long)CS1_BASE_VIRT, + .pfn = __phys_to_pfn(CS1_BASE), + .length = CS1_SIZE, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)AHB_PERI_BASE_VIRT, + .pfn = __phys_to_pfn(AHB_PERI_BASE), + .length = AHB_PERI_SIZE, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)APB0_PERI_BASE_VIRT, + .pfn = __phys_to_pfn(APB0_PERI_BASE), + .length = APB0_PERI_SIZE, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)APB1_PERI_BASE_VIRT, + .pfn = __phys_to_pfn(APB1_PERI_BASE), + .length = APB1_PERI_SIZE, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)EXT_MEM_CTRL_BASE_VIRT, + .pfn = __phys_to_pfn(EXT_MEM_CTRL_BASE), + .length = EXT_MEM_CTRL_SIZE, + .type = MT_DEVICE, + }, +}; + +/* + * Maps common IO regions for tcc8k. + * + */ +void __init tcc8k_map_common_io(void) +{ + iotable_init(tcc8k_io_desc, ARRAY_SIZE(tcc8k_io_desc)); +} + diff --git a/arch/arm/plat-tcc/include/mach/io.h b/arch/arm/plat-tcc/include/mach/io.h new file mode 100644 index 0000000..3e911d3 --- /dev/null +++ b/arch/arm/plat-tcc/include/mach/io.h @@ -0,0 +1,23 @@ +/* + * IO definitions for TCC8000 processors and boards + * + * Copyright (C) 1997-1999 Russell King + * Copyright (C) 2008-2009 Telechips + * Copyright (C) 2010 Hans J. Koch + * + * Licensed under the terms of the GNU Public License version 2. + */ + +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +/* + * We don't actually have real ISA nor PCI buses, but there is so many + * drivers out there that might just work if we fake them... + */ +#define __io(a) __typesafe_io(a) +#define __mem_pci(a) (a) + +#endif -- 1.6.3.3