/* * (Hisilicon's SoC based) flattened device tree enabled machine * * Copyright (c) 2012-2013 Hisilicon Ltd. * Copyright (c) 2012-2013 Linaro Ltd. * * Author: Haojian Zhuang <haojian.zhuang@linaro.org> * * 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/clocksource.h> #include <linux/irqchip.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #define HI3620_SYSCTRL_PHYS_BASE 0xfc802000 #define HI3620_SYSCTRL_VIRT_BASE 0xfe802000 /* * This table is only for optimization. Since ioremap() could always share * the same mapping if it's defined as static IO mapping. * * Without this table, system could also work. The cost is some virtual address * spaces wasted since ioremap() may be called multi times for the same * IO space. */ static struct map_desc hi3620_io_desc[] __initdata = { { /* sysctrl */ .pfn = __phys_to_pfn(HI3620_SYSCTRL_PHYS_BASE), .virtual = HI3620_SYSCTRL_VIRT_BASE, .length = 0x1000, .type = MT_DEVICE, }, }; static void __init hi3620_map_io(void) { debug_ll_io_init(); iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc)); } static const char *const hi3xxx_compat[] __initconst = { "hisilicon,hi3620-hi4511", NULL, }; DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)") .map_io = hi3620_map_io, .dt_compat = hi3xxx_compat, MACHINE_END