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Aurelien Jarno1c0c13e2007-09-25 15:40:12 +02001/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +02003 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
Michael Büscheb032b92011-07-04 20:50:05 +02004 * Copyright (C) 2006 Michael Buesch <m@bues.ch>
Waldemar Brodkorb121915c2010-06-08 19:06:01 +02005 * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +01006 * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +02007 *
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.
12 *
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.
23 *
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.
27 */
28
Paul Gortmakercae39d12011-07-28 18:46:31 -040029#include <linux/export.h>
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +020030#include <linux/types.h>
Hauke Mehrtensb04138b2013-12-20 02:16:13 +010031#include <linux/ethtool.h>
32#include <linux/phy.h>
33#include <linux/phy_fixed.h>
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +020034#include <linux/ssb/ssb.h>
Aurelien Jarnob06f3e12008-10-14 11:44:26 +020035#include <linux/ssb/ssb_embedded.h>
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +020036#include <linux/bcma/bcma_soc.h>
Aurelien Jarno25e5fb92007-09-25 15:41:24 +020037#include <asm/bootinfo.h>
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +020038#include <asm/reboot.h>
39#include <asm/time.h>
40#include <bcm47xx.h>
Hauke Mehrtens111bd982012-12-26 19:51:14 +000041#include <bcm47xx_nvram.h>
Hauke Mehrtens786c4972013-09-18 13:29:57 +020042#include <bcm47xx_board.h>
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +020043
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +020044union bcm47xx_bus bcm47xx_bus;
45EXPORT_SYMBOL(bcm47xx_bus);
46
47enum bcm47xx_bus_type bcm47xx_bus_type;
48EXPORT_SYMBOL(bcm47xx_bus_type);
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +020049
50static void bcm47xx_machine_restart(char *command)
51{
52 printk(KERN_ALERT "Please stand by while rebooting the system...\n");
53 local_irq_disable();
54 /* Set the watchdog timer to reset immediately */
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +020055 switch (bcm47xx_bus_type) {
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +020056#ifdef CONFIG_BCM47XX_SSB
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +020057 case BCM47XX_BUS_TYPE_SSB:
58 ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 1);
59 break;
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +020060#endif
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +020061#ifdef CONFIG_BCM47XX_BCMA
62 case BCM47XX_BUS_TYPE_BCMA:
63 bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 1);
64 break;
65#endif
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +020066 }
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +020067 while (1)
68 cpu_relax();
69}
70
71static void bcm47xx_machine_halt(void)
72{
73 /* Disable interrupts and watchdog and spin forever */
74 local_irq_disable();
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +020075 switch (bcm47xx_bus_type) {
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +020076#ifdef CONFIG_BCM47XX_SSB
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +020077 case BCM47XX_BUS_TYPE_SSB:
78 ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0);
79 break;
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +020080#endif
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +020081#ifdef CONFIG_BCM47XX_BCMA
82 case BCM47XX_BUS_TYPE_BCMA:
83 bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 0);
84 break;
85#endif
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +020086 }
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +020087 while (1)
88 cpu_relax();
89}
90
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +020091#ifdef CONFIG_BCM47XX_SSB
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +010092static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
Hauke Mehrtensfe6f3642011-05-10 23:31:32 +020093{
94 char prefix[10];
95
96 if (bus->bustype == SSB_BUSTYPE_PCI) {
Nathan Hintz5fe2e072012-05-04 21:56:32 -070097 memset(out, 0, sizeof(struct ssb_sprom));
Hauke Mehrtensfe6f3642011-05-10 23:31:32 +020098 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
99 bus->host_pci->bus->number + 1,
100 PCI_SLOT(bus->host_pci->devfn));
Hauke Mehrtensb8ebbaf2012-10-03 11:34:20 +0000101 bcm47xx_fill_sprom(out, prefix, false);
Hauke Mehrtensfe6f3642011-05-10 23:31:32 +0200102 return 0;
103 } else {
104 printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
105 return -EINVAL;
106 }
107}
108
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200109static int bcm47xx_get_invariants(struct ssb_bus *bus,
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100110 struct ssb_init_invariants *iv)
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200111{
Hauke Mehrtens2aa088d2010-11-27 17:45:59 +0100112 char buf[20];
Aurelien Jarno25e5fb92007-09-25 15:41:24 +0200113
114 /* Fill boardinfo structure */
115 memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo));
116
Hauke Mehrtensa9bba182012-04-29 02:04:07 +0200117 bcm47xx_fill_ssb_boardinfo(&iv->boardinfo, NULL);
Aurelien Jarno25e5fb92007-09-25 15:41:24 +0200118
Nathan Hintz5fe2e072012-05-04 21:56:32 -0700119 memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
Hauke Mehrtensb8ebbaf2012-10-03 11:34:20 +0000120 bcm47xx_fill_sprom(&iv->sprom, NULL, false);
Aurelien Jarno25e5fb92007-09-25 15:41:24 +0200121
Hauke Mehrtens111bd982012-12-26 19:51:14 +0000122 if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
Hauke Mehrtens2aa088d2010-11-27 17:45:59 +0100123 iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);
Aurelien Jarno25e5fb92007-09-25 15:41:24 +0200124
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200125 return 0;
126}
127
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +0200128static void __init bcm47xx_register_ssb(void)
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200129{
130 int err;
Hauke Mehrtens1690a7f2010-11-27 17:46:01 +0100131 char buf[100];
132 struct ssb_mipscore *mcore;
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200133
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100134 err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb);
Hauke Mehrtensfe6f3642011-05-10 23:31:32 +0200135 if (err)
136 printk(KERN_WARNING "bcm47xx: someone else already registered"
137 " a ssb SPROM callback handler (err %d)\n", err);
138
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +0200139 err = ssb_bus_ssbbus_register(&(bcm47xx_bus.ssb), SSB_ENUM_BASE,
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200140 bcm47xx_get_invariants);
141 if (err)
Ralf Baechleab75dc02011-11-17 15:07:31 +0000142 panic("Failed to initialize SSB bus (err %d)", err);
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200143
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +0200144 mcore = &bcm47xx_bus.ssb.mipscore;
Hauke Mehrtens111bd982012-12-26 19:51:14 +0000145 if (bcm47xx_nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) {
Hauke Mehrtens1690a7f2010-11-27 17:46:01 +0100146 if (strstr(buf, "console=ttyS1")) {
147 struct ssb_serial_port port;
148
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],
153 sizeof(port));
154 memcpy(&mcore->serial_ports[1], &port, sizeof(port));
155 }
156 }
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +0200157}
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +0200158#endif
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +0200159
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200160#ifdef CONFIG_BCM47XX_BCMA
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100161static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
162{
163 char prefix[10];
164 struct bcma_device *core;
165
166 switch (bus->hosttype) {
167 case BCMA_HOSTTYPE_PCI:
Nathan Hintz5fe2e072012-05-04 21:56:32 -0700168 memset(out, 0, sizeof(struct ssb_sprom));
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100169 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
170 bus->host_pci->bus->number + 1,
171 PCI_SLOT(bus->host_pci->devfn));
Hauke Mehrtensb8ebbaf2012-10-03 11:34:20 +0000172 bcm47xx_fill_sprom(out, prefix, false);
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100173 return 0;
174 case BCMA_HOSTTYPE_SOC:
Nathan Hintz5fe2e072012-05-04 21:56:32 -0700175 memset(out, 0, sizeof(struct ssb_sprom));
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100176 core = bcma_find_core(bus, BCMA_CORE_80211);
177 if (core) {
178 snprintf(prefix, sizeof(prefix), "sb/%u/",
179 core->core_index);
Hauke Mehrtensb8ebbaf2012-10-03 11:34:20 +0000180 bcm47xx_fill_sprom(out, prefix, true);
Hauke Mehrtens2c376312012-10-03 11:34:19 +0000181 } else {
Hauke Mehrtensb8ebbaf2012-10-03 11:34:20 +0000182 bcm47xx_fill_sprom(out, NULL, false);
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100183 }
184 return 0;
185 default:
186 pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
187 return -EINVAL;
188 }
189}
190
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200191static void __init bcm47xx_register_bcma(void)
192{
193 int err;
194
Hauke Mehrtensf384b3d2012-02-28 00:56:14 +0100195 err = bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma);
196 if (err)
197 pr_warn("bcm47xx: someone else already registered a bcma SPROM callback handler (err %d)\n", err);
198
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200199 err = bcma_host_soc_register(&bcm47xx_bus.bcma);
200 if (err)
Ralf Baechleab75dc02011-11-17 15:07:31 +0000201 panic("Failed to initialize BCMA bus (err %d)", err);
Hauke Mehrtens0a2fcaa2012-04-29 02:04:08 +0200202
203 bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200204}
205#endif
206
Hauke Mehrtens08ccf5722011-07-23 01:20:12 +0200207void __init plat_mem_setup(void)
208{
209 struct cpuinfo_mips *c = &current_cpu_data;
210
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200211 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();
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +0200216#endif
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200217 } else {
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();
222#endif
223 }
Hauke Mehrtens1690a7f2010-11-27 17:46:01 +0100224
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200225 _machine_restart = bcm47xx_machine_restart;
226 _machine_halt = bcm47xx_machine_halt;
227 pm_power_off = bcm47xx_machine_halt;
Hauke Mehrtens786c4972013-09-18 13:29:57 +0200228 bcm47xx_board_detect();
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200229}
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200230
Hauke Mehrtensb04138b2013-12-20 02:16:13 +0100231static struct fixed_phy_status bcm47xx_fixed_phy_status __initdata = {
232 .link = 1,
233 .speed = SPEED_100,
234 .duplex = DUPLEX_FULL,
235};
236
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200237static int __init bcm47xx_register_bus_complete(void)
238{
239 switch (bcm47xx_bus_type) {
240#ifdef CONFIG_BCM47XX_SSB
241 case BCM47XX_BUS_TYPE_SSB:
242 /* Nothing to do */
243 break;
244#endif
245#ifdef CONFIG_BCM47XX_BCMA
246 case BCM47XX_BUS_TYPE_BCMA:
247 bcma_bus_register(&bcm47xx_bus.bcma.bus);
248 break;
249#endif
250 }
Hauke Mehrtensb04138b2013-12-20 02:16:13 +0100251 fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
Hauke Mehrtensc1d1c5d2011-07-23 01:20:14 +0200252 return 0;
253}
254device_initcall(bcm47xx_register_bus_complete);