1 /* 2 * linux/arch/arm/mach-nspire/nspire.c 3 * 4 * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2, as 8 * published by the Free Software Foundation. 9 * 10 */ 11 #include <linux/init.h> 12 #include <linux/of_irq.h> 13 #include <linux/of_address.h> 14 #include <linux/of_platform.h> 15 #include <linux/irqchip.h> 16 #include <linux/irqchip/arm-vic.h> 17 #include <linux/clk-provider.h> 18 #include <linux/clkdev.h> 19 #include <linux/amba/bus.h> 20 #include <linux/amba/clcd.h> 21 #include <linux/clocksource.h> 22 23 #include <asm/mach/arch.h> 24 #include <asm/mach-types.h> 25 #include <asm/mach/map.h> 26 27 #include <asm/hardware/timer-sp.h> 28 29 #include "mmio.h" 30 #include "clcd.h" 31 32 static const char *nspire_dt_match[] __initconst = { 33 "ti,nspire", 34 "ti,nspire-cx", 35 "ti,nspire-tp", 36 "ti,nspire-clp", 37 NULL, 38 }; 39 40 static void __init nspire_map_io(void) 41 { 42 debug_ll_io_init(); 43 } 44 45 static struct clcd_board nspire_clcd_data = { 46 .name = "LCD", 47 .caps = CLCD_CAP_5551 | CLCD_CAP_565, 48 .check = clcdfb_check, 49 .decode = clcdfb_decode, 50 .setup = nspire_clcd_setup, 51 .mmap = nspire_clcd_mmap, 52 .remove = nspire_clcd_remove, 53 }; 54 55 56 static struct of_dev_auxdata nspire_auxdata[] __initdata = { 57 OF_DEV_AUXDATA("arm,pl111", NSPIRE_LCD_PHYS_BASE, 58 NULL, &nspire_clcd_data), 59 { } 60 }; 61 62 static void __init nspire_init(void) 63 { 64 of_platform_populate(NULL, of_default_bus_match_table, 65 nspire_auxdata, NULL); 66 } 67 68 static void __init nspire_init_time(void) 69 { 70 of_clk_init(NULL); 71 clocksource_of_init(); 72 } 73 74 static void nspire_restart(char mode, const char *cmd) 75 { 76 void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K); 77 if (!base) 78 return; 79 80 writel(2, base + NSPIRE_MISC_HWRESET); 81 } 82 83 DT_MACHINE_START(NSPIRE, "TI-NSPIRE") 84 .dt_compat = nspire_dt_match, 85 .map_io = nspire_map_io, 86 .init_time = nspire_init_time, 87 .init_machine = nspire_init, 88 .restart = nspire_restart, 89 MACHINE_END 90