1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright 2012 (C), Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 4 * 5 * arch/arm/mach-orion5x/board-dt.c 6 * 7 * Flattened Device Tree board initialization 8 */ 9 10 #include <linux/kernel.h> 11 #include <linux/init.h> 12 #include <linux/of.h> 13 #include <linux/of_platform.h> 14 #include <linux/cpu.h> 15 #include <linux/mbus.h> 16 #include <linux/clocksource.h> 17 #include <asm/system_misc.h> 18 #include <asm/mach/arch.h> 19 #include <asm/mach/map.h> 20 #include <plat/irq.h> 21 #include <plat/time.h> 22 #include "orion5x.h" 23 #include "bridge-regs.h" 24 #include "common.h" 25 26 static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = { 27 OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), 28 OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", 29 NULL), 30 OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL), 31 OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL), 32 OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL), 33 {}, 34 }; 35 36 static void __init orion5x_dt_init(void) 37 { 38 char *dev_name; 39 u32 dev, rev; 40 41 orion5x_id(&dev, &rev, &dev_name); 42 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk); 43 44 BUG_ON(mvebu_mbus_dt_init(false)); 45 46 /* 47 * Setup Orion address map 48 */ 49 orion5x_setup_wins(); 50 51 /* 52 * Don't issue "Wait for Interrupt" instruction if we are 53 * running on D0 5281 silicon. 54 */ 55 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { 56 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); 57 cpu_idle_poll_ctrl(true); 58 } 59 60 if (of_machine_is_compatible("maxtor,shared-storage-2")) 61 mss2_init(); 62 63 of_platform_default_populate(NULL, 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_machine = orion5x_dt_init, 75 .restart = orion5x_restart, 76 .dt_compat = orion5x_dt_compat, 77 MACHINE_END 78