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 <asm/system_misc.h> 18 #include <asm/mach/arch.h> 19 #include <mach/orion5x.h> 20 #include <plat/irq.h> 21 #include "common.h" 22 23 struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = { 24 OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), 25 OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", 26 NULL), 27 OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL), 28 OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL), 29 OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL), 30 {}, 31 }; 32 33 static void __init orion5x_dt_init(void) 34 { 35 char *dev_name; 36 u32 dev, rev; 37 38 orion5x_id(&dev, &rev, &dev_name); 39 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk); 40 41 /* 42 * Setup Orion address map 43 */ 44 orion5x_setup_cpu_mbus_bridge(); 45 46 /* Setup root of clk tree */ 47 clk_init(); 48 49 /* 50 * Don't issue "Wait for Interrupt" instruction if we are 51 * running on D0 5281 silicon. 52 */ 53 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { 54 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); 55 disable_hlt(); 56 } 57 58 of_platform_populate(NULL, of_default_bus_match_table, 59 orion5x_auxdata_lookup, NULL); 60 } 61 62 static const char *orion5x_dt_compat[] = { 63 "marvell,orion5x", 64 NULL, 65 }; 66 67 DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)") 68 /* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */ 69 .map_io = orion5x_map_io, 70 .init_early = orion5x_init_early, 71 .init_irq = orion_dt_init_irq, 72 .timer = &orion5x_timer, 73 .init_machine = orion5x_dt_init, 74 .restart = orion5x_restart, 75 .dt_compat = orion5x_dt_compat, 76 MACHINE_END 77