/* * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de> * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org> * Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/types.h> #include <linux/ssb/ssb.h> #include <linux/ssb/ssb_embedded.h> #include <asm/bootinfo.h> #include <asm/reboot.h> #include <asm/time.h> #include <bcm47xx.h> #include <asm/mach-bcm47xx/nvram.h> struct ssb_bus ssb_bcm47xx; EXPORT_SYMBOL(ssb_bcm47xx); static void bcm47xx_machine_restart(char *command) { printk(KERN_ALERT "Please stand by while rebooting the system...\n"); local_irq_disable(); /* Set the watchdog timer to reset immediately */ ssb_watchdog_timer_set(&ssb_bcm47xx, 1); while (1) cpu_relax(); } static void bcm47xx_machine_halt(void) { /* Disable interrupts and watchdog and spin forever */ local_irq_disable(); ssb_watchdog_timer_set(&ssb_bcm47xx, 0); while (1) cpu_relax(); } #define READ_FROM_NVRAM(_outvar, name, buf) \ if (nvram_getprefix(prefix, name, buf, sizeof(buf)) >= 0)\ sprom->_outvar = simple_strtoul(buf, NULL, 0); #define READ_FROM_NVRAM2(_outvar, name1, name2, buf) \ if (nvram_getprefix(prefix, name1, buf, sizeof(buf)) >= 0 || \ nvram_getprefix(prefix, name2, buf, sizeof(buf)) >= 0)\ sprom->_outvar = simple_strtoul(buf, NULL, 0); static inline int nvram_getprefix(const char *prefix, char *name, char *buf, int len) { if (prefix) { char key[100]; snprintf(key, sizeof(key), "%s%s", prefix, name); return nvram_getenv(key, buf, len); } return nvram_getenv(name, buf, len); } static u32 nvram_getu32(const char *name, char *buf, int len) { int rv; char key[100]; u16 var0, var1; snprintf(key, sizeof(key), "%s0", name); rv = nvram_getenv(key, buf, len); /* return 0 here so this looks like unset */ if (rv < 0) return 0; var0 = simple_strtoul(buf, NULL, 0); snprintf(key, sizeof(key), "%s1", name); rv = nvram_getenv(key, buf, len); if (rv < 0) return 0; var1 = simple_strtoul(buf, NULL, 0); return var1 << 16 | var0; } static void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix) { char buf[100]; u32 boardflags; memset(sprom, 0, sizeof(struct ssb_sprom)); sprom->revision = 1; /* Fallback: Old hardware does not define this. */ READ_FROM_NVRAM(revision, "sromrev", buf); if (nvram_getprefix(prefix, "il0macaddr", buf, sizeof(buf)) >= 0 || nvram_getprefix(prefix, "macaddr", buf, sizeof(buf)) >= 0) nvram_parse_macaddr(buf, sprom->il0mac); if (nvram_getprefix(prefix, "et0macaddr", buf, sizeof(buf)) >= 0) nvram_parse_macaddr(buf, sprom->et0mac); if (nvram_getprefix(prefix, "et1macaddr", buf, sizeof(buf)) >= 0) nvram_parse_macaddr(buf, sprom->et1mac); READ_FROM_NVRAM(et0phyaddr, "et0phyaddr", buf); READ_FROM_NVRAM(et1phyaddr, "et1phyaddr", buf); READ_FROM_NVRAM(et0mdcport, "et0mdcport", buf); READ_FROM_NVRAM(et1mdcport, "et1mdcport", buf); READ_FROM_NVRAM(board_rev, "boardrev", buf); READ_FROM_NVRAM(country_code, "ccode", buf); READ_FROM_NVRAM(ant_available_a, "aa5g", buf); READ_FROM_NVRAM(ant_available_bg, "aa2g", buf); READ_FROM_NVRAM(pa0b0, "pa0b0", buf); READ_FROM_NVRAM(pa0b1, "pa0b1", buf); READ_FROM_NVRAM(pa0b2, "pa0b2", buf); READ_FROM_NVRAM(pa1b0, "pa1b0", buf); READ_FROM_NVRAM(pa1b1, "pa1b1", buf); READ_FROM_NVRAM(pa1b2, "pa1b2", buf); READ_FROM_NVRAM(pa1lob0, "pa1lob0", buf); READ_FROM_NVRAM(pa1lob2, "pa1lob1", buf); READ_FROM_NVRAM(pa1lob1, "pa1lob2", buf); READ_FROM_NVRAM(pa1hib0, "pa1hib0", buf); READ_FROM_NVRAM(pa1hib2, "pa1hib1", buf); READ_FROM_NVRAM(pa1hib1, "pa1hib2", buf); READ_FROM_NVRAM2(gpio0, "ledbh0", "wl0gpio0", buf); READ_FROM_NVRAM2(gpio1, "ledbh1", "wl0gpio1", buf); READ_FROM_NVRAM2(gpio2, "ledbh2", "wl0gpio2", buf); READ_FROM_NVRAM2(gpio3, "ledbh3", "wl0gpio3", buf); READ_FROM_NVRAM2(maxpwr_bg, "maxp2ga0", "pa0maxpwr", buf); READ_FROM_NVRAM2(maxpwr_al, "maxp5gla0", "pa1lomaxpwr", buf); READ_FROM_NVRAM2(maxpwr_a, "maxp5ga0", "pa1maxpwr", buf); READ_FROM_NVRAM2(maxpwr_ah, "maxp5gha0", "pa1himaxpwr", buf); READ_FROM_NVRAM2(itssi_bg, "itt5ga0", "pa0itssit", buf); READ_FROM_NVRAM2(itssi_a, "itt2ga0", "pa1itssit", buf); READ_FROM_NVRAM(tri2g, "tri2g", buf); READ_FROM_NVRAM(tri5gl, "tri5gl", buf); READ_FROM_NVRAM(tri5g, "tri5g", buf); READ_FROM_NVRAM(tri5gh, "tri5gh", buf); READ_FROM_NVRAM(txpid2g[0], "txpid2ga0", buf); READ_FROM_NVRAM(txpid2g[1], "txpid2ga1", buf); READ_FROM_NVRAM(txpid2g[2], "txpid2ga2", buf); READ_FROM_NVRAM(txpid2g[3], "txpid2ga3", buf); READ_FROM_NVRAM(txpid5g[0], "txpid5ga0", buf); READ_FROM_NVRAM(txpid5g[1], "txpid5ga1", buf); READ_FROM_NVRAM(txpid5g[2], "txpid5ga2", buf); READ_FROM_NVRAM(txpid5g[3], "txpid5ga3", buf); READ_FROM_NVRAM(txpid5gl[0], "txpid5gla0", buf); READ_FROM_NVRAM(txpid5gl[1], "txpid5gla1", buf); READ_FROM_NVRAM(txpid5gl[2], "txpid5gla2", buf); READ_FROM_NVRAM(txpid5gl[3], "txpid5gla3", buf); READ_FROM_NVRAM(txpid5gh[0], "txpid5gha0", buf); READ_FROM_NVRAM(txpid5gh[1], "txpid5gha1", buf); READ_FROM_NVRAM(txpid5gh[2], "txpid5gha2", buf); READ_FROM_NVRAM(txpid5gh[3], "txpid5gha3", buf); READ_FROM_NVRAM(rxpo2g, "rxpo2g", buf); READ_FROM_NVRAM(rxpo5g, "rxpo5g", buf); READ_FROM_NVRAM(rssisav2g, "rssisav2g", buf); READ_FROM_NVRAM(rssismc2g, "rssismc2g", buf); READ_FROM_NVRAM(rssismf2g, "rssismf2g", buf); READ_FROM_NVRAM(bxa2g, "bxa2g", buf); READ_FROM_NVRAM(rssisav5g, "rssisav5g", buf); READ_FROM_NVRAM(rssismc5g, "rssismc5g", buf); READ_FROM_NVRAM(rssismf5g, "rssismf5g", buf); READ_FROM_NVRAM(bxa5g, "bxa5g", buf); READ_FROM_NVRAM(cck2gpo, "cck2gpo", buf); sprom->ofdm2gpo = nvram_getu32("ofdm2gpo", buf, sizeof(buf)); sprom->ofdm5glpo = nvram_getu32("ofdm5glpo", buf, sizeof(buf)); sprom->ofdm5gpo = nvram_getu32("ofdm5gpo", buf, sizeof(buf)); sprom->ofdm5ghpo = nvram_getu32("ofdm5ghpo", buf, sizeof(buf)); READ_FROM_NVRAM(antenna_gain.ghz24.a0, "ag0", buf); READ_FROM_NVRAM(antenna_gain.ghz24.a1, "ag1", buf); READ_FROM_NVRAM(antenna_gain.ghz24.a2, "ag2", buf); READ_FROM_NVRAM(antenna_gain.ghz24.a3, "ag3", buf); memcpy(&sprom->antenna_gain.ghz5, &sprom->antenna_gain.ghz24, sizeof(sprom->antenna_gain.ghz5)); if (nvram_getprefix(prefix, "boardflags", buf, sizeof(buf)) >= 0) { boardflags = simple_strtoul(buf, NULL, 0); if (boardflags) { sprom->boardflags_lo = (boardflags & 0x0000FFFFU); sprom->boardflags_hi = (boardflags & 0xFFFF0000U) >> 16; } } if (nvram_getprefix(prefix, "boardflags2", buf, sizeof(buf)) >= 0) { boardflags = simple_strtoul(buf, NULL, 0); if (boardflags) { sprom->boardflags2_lo = (boardflags & 0x0000FFFFU); sprom->boardflags2_hi = (boardflags & 0xFFFF0000U) >> 16; } } } int bcm47xx_get_sprom(struct ssb_bus *bus, struct ssb_sprom *out) { char prefix[10]; if (bus->bustype == SSB_BUSTYPE_PCI) { snprintf(prefix, sizeof(prefix), "pci/%u/%u/", bus->host_pci->bus->number + 1, PCI_SLOT(bus->host_pci->devfn)); bcm47xx_fill_sprom(out, prefix); return 0; } else { printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n"); return -EINVAL; } } static int bcm47xx_get_invariants(struct ssb_bus *bus, struct ssb_init_invariants *iv) { char buf[20]; /* Fill boardinfo structure */ memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); if (nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) iv->boardinfo.vendor = (u16)simple_strtoul(buf, NULL, 0); else iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM; if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); bcm47xx_fill_sprom(&iv->sprom, NULL); if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0) iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10); return 0; } void __init plat_mem_setup(void) { int err; char buf[100]; struct ssb_mipscore *mcore; err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom); if (err) printk(KERN_WARNING "bcm47xx: someone else already registered" " a ssb SPROM callback handler (err %d)\n", err); err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, bcm47xx_get_invariants); if (err) panic("Failed to initialize SSB bus (err %d)\n", err); mcore = &ssb_bcm47xx.mipscore; if (nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) { if (strstr(buf, "console=ttyS1")) { struct ssb_serial_port port; printk(KERN_DEBUG "Swapping serial ports!\n"); /* swap serial ports */ memcpy(&port, &mcore->serial_ports[0], sizeof(port)); memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1], sizeof(port)); memcpy(&mcore->serial_ports[1], &port, sizeof(port)); } } _machine_restart = bcm47xx_machine_restart; _machine_halt = bcm47xx_machine_halt; pm_power_off = bcm47xx_machine_halt; }