1*1c0c13ebSAurelien Jarno /* 2*1c0c13ebSAurelien Jarno * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> 3*1c0c13ebSAurelien Jarno * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> 4*1c0c13ebSAurelien Jarno * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> 5*1c0c13ebSAurelien Jarno * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de> 6*1c0c13ebSAurelien Jarno * 7*1c0c13ebSAurelien Jarno * This program is free software; you can redistribute it and/or modify it 8*1c0c13ebSAurelien Jarno * under the terms of the GNU General Public License as published by the 9*1c0c13ebSAurelien Jarno * Free Software Foundation; either version 2 of the License, or (at your 10*1c0c13ebSAurelien Jarno * option) any later version. 11*1c0c13ebSAurelien Jarno * 12*1c0c13ebSAurelien Jarno * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 13*1c0c13ebSAurelien Jarno * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 14*1c0c13ebSAurelien Jarno * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 15*1c0c13ebSAurelien Jarno * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 16*1c0c13ebSAurelien Jarno * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 17*1c0c13ebSAurelien Jarno * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 18*1c0c13ebSAurelien Jarno * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 19*1c0c13ebSAurelien Jarno * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 20*1c0c13ebSAurelien Jarno * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 21*1c0c13ebSAurelien Jarno * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 22*1c0c13ebSAurelien Jarno * 23*1c0c13ebSAurelien Jarno * You should have received a copy of the GNU General Public License along 24*1c0c13ebSAurelien Jarno * with this program; if not, write to the Free Software Foundation, Inc., 25*1c0c13ebSAurelien Jarno * 675 Mass Ave, Cambridge, MA 02139, USA. 26*1c0c13ebSAurelien Jarno */ 27*1c0c13ebSAurelien Jarno 28*1c0c13ebSAurelien Jarno #include <linux/types.h> 29*1c0c13ebSAurelien Jarno #include <linux/ssb/ssb.h> 30*1c0c13ebSAurelien Jarno #include <asm/reboot.h> 31*1c0c13ebSAurelien Jarno #include <asm/time.h> 32*1c0c13ebSAurelien Jarno #include <bcm47xx.h> 33*1c0c13ebSAurelien Jarno 34*1c0c13ebSAurelien Jarno struct ssb_bus ssb_bcm47xx; 35*1c0c13ebSAurelien Jarno EXPORT_SYMBOL(ssb_bcm47xx); 36*1c0c13ebSAurelien Jarno 37*1c0c13ebSAurelien Jarno static void bcm47xx_machine_restart(char *command) 38*1c0c13ebSAurelien Jarno { 39*1c0c13ebSAurelien Jarno printk(KERN_ALERT "Please stand by while rebooting the system...\n"); 40*1c0c13ebSAurelien Jarno local_irq_disable(); 41*1c0c13ebSAurelien Jarno /* Set the watchdog timer to reset immediately */ 42*1c0c13ebSAurelien Jarno ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 1); 43*1c0c13ebSAurelien Jarno while (1) 44*1c0c13ebSAurelien Jarno cpu_relax(); 45*1c0c13ebSAurelien Jarno } 46*1c0c13ebSAurelien Jarno 47*1c0c13ebSAurelien Jarno static void bcm47xx_machine_halt(void) 48*1c0c13ebSAurelien Jarno { 49*1c0c13ebSAurelien Jarno /* Disable interrupts and watchdog and spin forever */ 50*1c0c13ebSAurelien Jarno local_irq_disable(); 51*1c0c13ebSAurelien Jarno ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 0); 52*1c0c13ebSAurelien Jarno while (1) 53*1c0c13ebSAurelien Jarno cpu_relax(); 54*1c0c13ebSAurelien Jarno } 55*1c0c13ebSAurelien Jarno 56*1c0c13ebSAurelien Jarno static int bcm47xx_get_invariants(struct ssb_bus *bus, 57*1c0c13ebSAurelien Jarno struct ssb_init_invariants *iv) 58*1c0c13ebSAurelien Jarno { 59*1c0c13ebSAurelien Jarno /* TODO: fill ssb_init_invariants using boardtype/boardrev 60*1c0c13ebSAurelien Jarno * CFE environment variables. 61*1c0c13ebSAurelien Jarno */ 62*1c0c13ebSAurelien Jarno return 0; 63*1c0c13ebSAurelien Jarno } 64*1c0c13ebSAurelien Jarno 65*1c0c13ebSAurelien Jarno void __init plat_mem_setup(void) 66*1c0c13ebSAurelien Jarno { 67*1c0c13ebSAurelien Jarno int err; 68*1c0c13ebSAurelien Jarno 69*1c0c13ebSAurelien Jarno err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, 70*1c0c13ebSAurelien Jarno bcm47xx_get_invariants); 71*1c0c13ebSAurelien Jarno if (err) 72*1c0c13ebSAurelien Jarno panic("Failed to initialize SSB bus (err %d)\n", err); 73*1c0c13ebSAurelien Jarno 74*1c0c13ebSAurelien Jarno _machine_restart = bcm47xx_machine_restart; 75*1c0c13ebSAurelien Jarno _machine_halt = bcm47xx_machine_halt; 76*1c0c13ebSAurelien Jarno pm_power_off = bcm47xx_machine_halt; 77*1c0c13ebSAurelien Jarno board_time_init = bcm47xx_time_init; 78*1c0c13ebSAurelien Jarno } 79*1c0c13ebSAurelien Jarno 80