2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2006 Michael Buesch <m@bues.ch>
5 * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
6 * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <linux/export.h>
30 #include <linux/types.h>
31 #include <linux/ethtool.h>
32 #include <linux/phy.h>
33 #include <linux/phy_fixed.h>
34 #include <linux/ssb/ssb.h>
35 #include <linux/ssb/ssb_embedded.h>
36 #include <linux/bcma/bcma_soc.h>
37 #include <asm/bootinfo.h>
38 #include <asm/reboot.h>
41 #include <bcm47xx_nvram.h>
42 #include <bcm47xx_board.h>
44 union bcm47xx_bus bcm47xx_bus;
45 EXPORT_SYMBOL(bcm47xx_bus);
47 enum bcm47xx_bus_type bcm47xx_bus_type;
48 EXPORT_SYMBOL(bcm47xx_bus_type);
50 static void bcm47xx_machine_restart(char *command)
52 printk(KERN_ALERT "Please stand by while rebooting the system...\n");
54 /* Set the watchdog timer to reset immediately */
55 switch (bcm47xx_bus_type) {
56 #ifdef CONFIG_BCM47XX_SSB
57 case BCM47XX_BUS_TYPE_SSB:
58 ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 1);
61 #ifdef CONFIG_BCM47XX_BCMA
62 case BCM47XX_BUS_TYPE_BCMA:
63 bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 1);
71 static void bcm47xx_machine_halt(void)
73 /* Disable interrupts and watchdog and spin forever */
75 switch (bcm47xx_bus_type) {
76 #ifdef CONFIG_BCM47XX_SSB
77 case BCM47XX_BUS_TYPE_SSB:
78 ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0);
81 #ifdef CONFIG_BCM47XX_BCMA
82 case BCM47XX_BUS_TYPE_BCMA:
83 bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 0);
91 #ifdef CONFIG_BCM47XX_SSB
92 static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
96 if (bus->bustype == SSB_BUSTYPE_PCI) {
97 memset(out, 0, sizeof(struct ssb_sprom));
98 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
99 bus->host_pci->bus->number + 1,
100 PCI_SLOT(bus->host_pci->devfn));
101 bcm47xx_fill_sprom(out, prefix, false);
104 printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
109 static int bcm47xx_get_invariants(struct ssb_bus *bus,
110 struct ssb_init_invariants *iv)
114 /* Fill boardinfo structure */
115 memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo));
117 bcm47xx_fill_ssb_boardinfo(&iv->boardinfo, NULL);
119 memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
120 bcm47xx_fill_sprom(&iv->sprom, NULL, false);
122 if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
123 iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);
128 static void __init bcm47xx_register_ssb(void)
132 struct ssb_mipscore *mcore;
134 err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb);
136 printk(KERN_WARNING "bcm47xx: someone else already registered"
137 " a ssb SPROM callback handler (err %d)\n", err);
139 err = ssb_bus_ssbbus_register(&(bcm47xx_bus.ssb), SSB_ENUM_BASE,
140 bcm47xx_get_invariants);
142 panic("Failed to initialize SSB bus (err %d)", err);
144 mcore = &bcm47xx_bus.ssb.mipscore;
145 if (bcm47xx_nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) {
146 if (strstr(buf, "console=ttyS1")) {
147 struct ssb_serial_port port;
149 printk(KERN_DEBUG "Swapping serial ports!\n");
150 /* swap serial ports */
151 memcpy(&port, &mcore->serial_ports[0], sizeof(port));
152 memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1],
154 memcpy(&mcore->serial_ports[1], &port, sizeof(port));
160 #ifdef CONFIG_BCM47XX_BCMA
161 static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
164 struct bcma_device *core;
166 switch (bus->hosttype) {
167 case BCMA_HOSTTYPE_PCI:
168 memset(out, 0, sizeof(struct ssb_sprom));
169 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
170 bus->host_pci->bus->number + 1,
171 PCI_SLOT(bus->host_pci->devfn));
172 bcm47xx_fill_sprom(out, prefix, false);
174 case BCMA_HOSTTYPE_SOC:
175 memset(out, 0, sizeof(struct ssb_sprom));
176 core = bcma_find_core(bus, BCMA_CORE_80211);
178 snprintf(prefix, sizeof(prefix), "sb/%u/",
180 bcm47xx_fill_sprom(out, prefix, true);
182 bcm47xx_fill_sprom(out, NULL, false);
186 pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
191 static void __init bcm47xx_register_bcma(void)
195 err = bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma);
197 pr_warn("bcm47xx: someone else already registered a bcma SPROM callback handler (err %d)\n", err);
199 err = bcma_host_soc_register(&bcm47xx_bus.bcma);
201 panic("Failed to initialize BCMA bus (err %d)", err);
203 bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
207 void __init plat_mem_setup(void)
209 struct cpuinfo_mips *c = ¤t_cpu_data;
211 if (c->cputype == CPU_74K) {
212 printk(KERN_INFO "bcm47xx: using bcma bus\n");
213 #ifdef CONFIG_BCM47XX_BCMA
214 bcm47xx_bus_type = BCM47XX_BUS_TYPE_BCMA;
215 bcm47xx_register_bcma();
218 printk(KERN_INFO "bcm47xx: using ssb bus\n");
219 #ifdef CONFIG_BCM47XX_SSB
220 bcm47xx_bus_type = BCM47XX_BUS_TYPE_SSB;
221 bcm47xx_register_ssb();
225 _machine_restart = bcm47xx_machine_restart;
226 _machine_halt = bcm47xx_machine_halt;
227 pm_power_off = bcm47xx_machine_halt;
228 bcm47xx_board_detect();
231 static struct fixed_phy_status bcm47xx_fixed_phy_status __initdata = {
234 .duplex = DUPLEX_FULL,
237 static int __init bcm47xx_register_bus_complete(void)
239 switch (bcm47xx_bus_type) {
240 #ifdef CONFIG_BCM47XX_SSB
241 case BCM47XX_BUS_TYPE_SSB:
245 #ifdef CONFIG_BCM47XX_BCMA
246 case BCM47XX_BUS_TYPE_BCMA:
247 bcma_bus_register(&bcm47xx_bus.bcma.bus);
251 fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
254 device_initcall(bcm47xx_register_bus_complete);