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 <asm/system_misc.h> 19 #include <asm/mach/arch.h> 20 #include <mach/orion5x.h> 21 #include <plat/irq.h> 22 #include "common.h" 23 24 struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = { 25 OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), 26 OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", 27 NULL), 28 OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL), 29 OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL), 30 OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL), 31 {}, 32 }; 33 34 static void __init orion5x_dt_init(void) 35 { 36 char *dev_name; 37 u32 dev, rev; 38 39 orion5x_id(&dev, &rev, &dev_name); 40 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk); 41 42 /* 43 * Setup Orion address map 44 */ 45 orion5x_setup_wins(); 46 47 /* Setup root of clk tree */ 48 clk_init(); 49 50 /* 51 * Don't issue "Wait for Interrupt" instruction if we are 52 * running on D0 5281 silicon. 53 */ 54 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { 55 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); 56 cpu_idle_poll_ctrl(true); 57 } 58 59 if (of_machine_is_compatible("lacie,ethernet-disk-mini-v2")) 60 edmini_v2_init(); 61 62 of_platform_populate(NULL, of_default_bus_match_table, 63 orion5x_auxdata_lookup, NULL); 64 } 65 66 static const char *orion5x_dt_compat[] = { 67 "marvell,orion5x", 68 NULL, 69 }; 70 71 DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)") 72 /* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */ 73 .map_io = orion5x_map_io, 74 .init_early = orion5x_init_early, 75 .init_irq = orion_dt_init_irq, 76 .init_time = orion5x_timer_init, 77 .init_machine = orion5x_dt_init, 78 .restart = orion5x_restart, 79 .dt_compat = orion5x_dt_compat, 80 MACHINE_END 81