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/clkdev.h> 18 #include <linux/amba/bus.h> 19 #include <linux/amba/clcd.h> 20 21 #include <asm/mach/arch.h> 22 #include <asm/mach-types.h> 23 #include <asm/mach/map.h> 24 25 #include <asm/hardware/timer-sp.h> 26 27 #include "mmio.h" 28 #include "clcd.h" 29 30 static const char *const nspire_dt_match[] __initconst = { 31 "ti,nspire", 32 "ti,nspire-cx", 33 "ti,nspire-tp", 34 "ti,nspire-clp", 35 NULL, 36 }; 37 38 static void __init nspire_map_io(void) 39 { 40 debug_ll_io_init(); 41 } 42 43 static struct clcd_board nspire_clcd_data = { 44 .name = "LCD", 45 .caps = CLCD_CAP_5551 | CLCD_CAP_565, 46 .check = clcdfb_check, 47 .decode = clcdfb_decode, 48 .setup = nspire_clcd_setup, 49 .mmap = nspire_clcd_mmap, 50 .remove = nspire_clcd_remove, 51 }; 52 53 54 static struct of_dev_auxdata nspire_auxdata[] __initdata = { 55 OF_DEV_AUXDATA("arm,pl111", NSPIRE_LCD_PHYS_BASE, 56 NULL, &nspire_clcd_data), 57 { } 58 }; 59 60 static void __init nspire_init(void) 61 { 62 of_platform_populate(NULL, of_default_bus_match_table, 63 nspire_auxdata, NULL); 64 } 65 66 static void nspire_restart(enum reboot_mode mode, const char *cmd) 67 { 68 void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K); 69 if (!base) 70 return; 71 72 writel(2, base + NSPIRE_MISC_HWRESET); 73 } 74 75 DT_MACHINE_START(NSPIRE, "TI-NSPIRE") 76 .dt_compat = nspire_dt_match, 77 .map_io = nspire_map_io, 78 .init_machine = nspire_init, 79 .restart = nspire_restart, 80 MACHINE_END 81