1 /* 2 * (Hisilicon's SoC based) flattened device tree enabled machine 3 * 4 * Copyright (c) 2012-2013 Hisilicon Ltd. 5 * Copyright (c) 2012-2013 Linaro Ltd. 6 * 7 * Author: Haojian Zhuang <haojian.zhuang@linaro.org> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14 #include <linux/clk-provider.h> 15 #include <linux/clocksource.h> 16 #include <linux/irqchip.h> 17 18 #include <asm/mach/arch.h> 19 #include <asm/mach/map.h> 20 21 #define HI3620_SYSCTRL_PHYS_BASE 0xfc802000 22 #define HI3620_SYSCTRL_VIRT_BASE 0xfe802000 23 24 /* 25 * This table is only for optimization. Since ioremap() could always share 26 * the same mapping if it's defined as static IO mapping. 27 * 28 * Without this table, system could also work. The cost is some virtual address 29 * spaces wasted since ioremap() may be called multi times for the same 30 * IO space. 31 */ 32 static struct map_desc hi3620_io_desc[] __initdata = { 33 { 34 /* sysctrl */ 35 .pfn = __phys_to_pfn(HI3620_SYSCTRL_PHYS_BASE), 36 .virtual = HI3620_SYSCTRL_VIRT_BASE, 37 .length = 0x1000, 38 .type = MT_DEVICE, 39 }, 40 }; 41 42 static void __init hi3620_map_io(void) 43 { 44 debug_ll_io_init(); 45 iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc)); 46 } 47 48 static const char *hi3xxx_compat[] __initconst = { 49 "hisilicon,hi3620-hi4511", 50 NULL, 51 }; 52 53 DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)") 54 .map_io = hi3620_map_io, 55 .dt_compat = hi3xxx_compat, 56 MACHINE_END 57 58 static const char *hix5hd2_compat[] __initconst = { 59 "hisilicon,hix5hd2", 60 NULL, 61 }; 62 63 DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)") 64 .dt_compat = hix5hd2_compat, 65 MACHINE_END 66