1 /* 2 * Copyright 2012 (C), Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 3 * 4 * arch/arm/mach-orion5x/board-dt.c 5 * 6 * Flattened Device Tree board initialization 7 * 8 * This file is licensed under the terms of the GNU General Public 9 * License version 2. This program is licensed "as is" without any 10 * warranty of any kind, whether express or implied. 11 */ 12 13 #include <linux/kernel.h> 14 #include <linux/init.h> 15 #include <linux/of.h> 16 #include <linux/of_platform.h> 17 #include <linux/cpu.h> 18 #include <linux/mbus.h> 19 #include <linux/clocksource.h> 20 #include <asm/system_misc.h> 21 #include <asm/mach/arch.h> 22 #include <asm/mach/map.h> 23 #include <plat/irq.h> 24 #include <plat/time.h> 25 #include "orion5x.h" 26 #include "bridge-regs.h" 27 #include "common.h" 28 29 static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = { 30 OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), 31 OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", 32 NULL), 33 OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL), 34 OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL), 35 OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL), 36 {}, 37 }; 38 39 static void __init orion5x_dt_init(void) 40 { 41 char *dev_name; 42 u32 dev, rev; 43 44 orion5x_id(&dev, &rev, &dev_name); 45 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk); 46 47 BUG_ON(mvebu_mbus_dt_init(false)); 48 49 /* 50 * Setup Orion address map 51 */ 52 orion5x_setup_wins(); 53 54 /* 55 * Don't issue "Wait for Interrupt" instruction if we are 56 * running on D0 5281 silicon. 57 */ 58 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { 59 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); 60 cpu_idle_poll_ctrl(true); 61 } 62 63 if (of_machine_is_compatible("maxtor,shared-storage-2")) 64 mss2_init(); 65 66 of_platform_default_populate(NULL, orion5x_auxdata_lookup, NULL); 67 } 68 69 static const char *orion5x_dt_compat[] = { 70 "marvell,orion5x", 71 NULL, 72 }; 73 74 DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)") 75 /* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */ 76 .map_io = orion5x_map_io, 77 .init_machine = orion5x_dt_init, 78 .restart = orion5x_restart, 79 .dt_compat = orion5x_dt_compat, 80 MACHINE_END 81