/arch/mips/bcm47xx/setup.c

  1/*
  2 *  Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
  3 *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
  4 *  Copyright (C) 2006 Michael Buesch <mb@bu3sch.de>
  5 *  Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
  6 *
  7 *  This program is free software; you can redistribute  it and/or modify it
  8 *  under  the terms of  the GNU General  Public License as published by the
  9 *  Free Software Foundation;  either version 2 of the  License, or (at your
 10 *  option) any later version.
 11 *
 12 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 13 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 14 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 15 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 16 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 17 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 18 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 19 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 20 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 21 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 22 *
 23 *  You should have received a copy of the  GNU General Public License along
 24 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 25 *  675 Mass Ave, Cambridge, MA 02139, USA.
 26 */
 27
 28#include <linux/types.h>
 29#include <linux/ssb/ssb.h>
 30#include <linux/ssb/ssb_embedded.h>
 31#include <asm/bootinfo.h>
 32#include <asm/reboot.h>
 33#include <asm/time.h>
 34#include <bcm47xx.h>
 35#include <asm/fw/cfe/cfe_api.h>
 36#include <asm/mach-bcm47xx/nvram.h>
 37
 38struct ssb_bus ssb_bcm47xx;
 39EXPORT_SYMBOL(ssb_bcm47xx);
 40
 41static void bcm47xx_machine_restart(char *command)
 42{
 43	printk(KERN_ALERT "Please stand by while rebooting the system...\n");
 44	local_irq_disable();
 45	/* Set the watchdog timer to reset immediately */
 46	ssb_watchdog_timer_set(&ssb_bcm47xx, 1);
 47	while (1)
 48		cpu_relax();
 49}
 50
 51static void bcm47xx_machine_halt(void)
 52{
 53	/* Disable interrupts and watchdog and spin forever */
 54	local_irq_disable();
 55	ssb_watchdog_timer_set(&ssb_bcm47xx, 0);
 56	while (1)
 57		cpu_relax();
 58}
 59
 60static void str2eaddr(char *str, char *dest)
 61{
 62	int i = 0;
 63
 64	if (str == NULL) {
 65		memset(dest, 0, 6);
 66		return;
 67	}
 68
 69	for (;;) {
 70		dest[i++] = (char) simple_strtoul(str, NULL, 16);
 71		str += 2;
 72		if (!*str++ || i == 6)
 73			break;
 74	}
 75}
 76
 77static int bcm47xx_get_invariants(struct ssb_bus *bus,
 78				   struct ssb_init_invariants *iv)
 79{
 80	char buf[100];
 81
 82	/* Fill boardinfo structure */
 83	memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo));
 84
 85	if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0 ||
 86	    nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0)
 87		iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
 88	if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0 ||
 89	    nvram_getenv("boardtype", buf, sizeof(buf)) >= 0)
 90		iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
 91	if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0 ||
 92	    nvram_getenv("boardrev", buf, sizeof(buf)) >= 0)
 93		iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0);
 94
 95	/* Fill sprom structure */
 96	memset(&(iv->sprom), 0, sizeof(struct ssb_sprom));
 97	iv->sprom.revision = 3;
 98
 99	if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0 ||
100	    nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0)
101		str2eaddr(buf, iv->sprom.et0mac);
102
103	if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0 ||
104	    nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0)
105		str2eaddr(buf, iv->sprom.et1mac);
106
107	if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0 ||
108	    nvram_getenv("et0phyaddr", buf, sizeof(buf)) >= 0)
109		iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 0);
110
111	if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0 ||
112	    nvram_getenv("et1phyaddr", buf, sizeof(buf)) >= 0)
113		iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 0);
114
115	if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0 ||
116	    nvram_getenv("et0mdcport", buf, sizeof(buf)) >= 0)
117		iv->sprom.et0mdcport = simple_strtoul(buf, NULL, 10);
118
119	if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0 ||
120	    nvram_getenv("et1mdcport", buf, sizeof(buf)) >= 0)
121		iv->sprom.et1mdcport = simple_strtoul(buf, NULL, 10);
122
123	return 0;
124}
125
126void __init plat_mem_setup(void)
127{
128	int err;
129
130	err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE,
131				      bcm47xx_get_invariants);
132	if (err)
133		panic("Failed to initialize SSB bus (err %d)\n", err);
134
135	_machine_restart = bcm47xx_machine_restart;
136	_machine_halt = bcm47xx_machine_halt;
137	pm_power_off = bcm47xx_machine_halt;
138}