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/clk-provider.h> 20 #include <linux/clocksource.h> 21 #include <asm/system_misc.h> 22 #include <asm/mach/arch.h> 23 #include <asm/mach/map.h> 24 #include <mach/orion5x.h> 25 #include <mach/bridge-regs.h> 26 #include <plat/irq.h> 27 #include <plat/time.h> 28 #include "common.h" 29 30 static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = { 31 OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), 32 OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", 33 NULL), 34 OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL), 35 OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL), 36 OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL), 37 {}, 38 }; 39 40 static void __init orion5x_dt_init(void) 41 { 42 char *dev_name; 43 u32 dev, rev; 44 45 orion5x_id(&dev, &rev, &dev_name); 46 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk); 47 48 BUG_ON(mvebu_mbus_dt_init()); 49 50 /* 51 * Setup Orion address map 52 */ 53 orion5x_setup_wins(); 54 55 /* 56 * Don't issue "Wait for Interrupt" instruction if we are 57 * running on D0 5281 silicon. 58 */ 59 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { 60 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); 61 cpu_idle_poll_ctrl(true); 62 } 63 64 of_platform_populate(NULL, of_default_bus_match_table, 65 orion5x_auxdata_lookup, NULL); 66 } 67 68 static const char *orion5x_dt_compat[] = { 69 "marvell,orion5x", 70 NULL, 71 }; 72 73 DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)") 74 /* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */ 75 .map_io = orion5x_map_io, 76 .init_machine = orion5x_dt_init, 77 .restart = orion5x_restart, 78 .dt_compat = orion5x_dt_compat, 79 MACHINE_END 80