/* * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> * Copyright (C) 2006-2008 Michael Buesch <mb@bu3sch.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/init.h> #include <linux/types.h> #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> #include <linux/serial_reg.h> #include <linux/serial_8250.h> #include <asm/bootinfo.h> #include <asm/time.h> #include <asm/reboot.h> #include <asm/cfe.h> #include <linux/pm.h> #include <linux/ssb/ssb.h> #include <linux/ssb/ssb_embedded.h> #include <nvram.h> extern void bcm47xx_pci_init(void); extern void bcm47xx_time_init(void); struct ssb_bus ssb; int pcibios_plat_dev_init(struct pci_dev *dev) { int err; err = ssb_pcibios_plat_dev_init(dev); if (err) { printk(KERN_ALERT "PCI: Failed to init device %s\n", pci_name(dev)); } return err; } static void bcm47xx_machine_restart(char *command) { printk(KERN_ALERT "Please stand by while rebooting the system...\n"); local_irq_disable(); /* CFE has a reboot callback, but that does not work. * Oopses with: Reserved instruction in kernel code. */ /* Set the watchdog timer to reset immediately */ if (ssb_watchdog_timer_set(&ssb, 1)) printk(KERN_EMERG "SSB watchdog-triggered reboot failed!\n"); while (1) cpu_relax(); } static void bcm47xx_machine_halt(void) { /* Disable interrupts and watchdog and spin forever */ local_irq_disable(); if (ssb_watchdog_timer_set(&ssb, 0)) printk(KERN_EMERG "Failed to disable SSB watchdog!\n"); while (1) cpu_relax(); } static void e_aton(char *str, char *dest) { int i = 0; if (str == NULL) { memset(dest, 0, 6); return; } for (;;) { dest[i++] = (char) simple_strtoul(str, NULL, 16); str += 2; if (!*str++ || i == 6) break; } } static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) { char *s; memset(sprom, 0xFF, sizeof(struct ssb_sprom)); sprom->revision = 1; if ((s = nvram_get("il0macaddr"))) e_aton(s, sprom->il0mac); if ((s = nvram_get("et0macaddr"))) e_aton(s, sprom->et0mac); if ((s = nvram_get("et1macaddr"))) e_aton(s, sprom->et1mac); if ((s = nvram_get("et0phyaddr"))) sprom->et0phyaddr = simple_strtoul(s, NULL, 0); if ((s = nvram_get("et1phyaddr"))) sprom->et1phyaddr = simple_strtoul(s, NULL, 0); if ((s = nvram_get("et0mdcport"))) sprom->et0mdcport = !!simple_strtoul(s, NULL, 10); if ((s = nvram_get("et1mdcport"))) sprom->et1mdcport = !!simple_strtoul(s, NULL, 10); if ((s = nvram_get("pa0b0"))) sprom->pa0b0 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa0b1"))) sprom->pa0b1 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa0b2"))) sprom->pa0b2 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa1b0"))) sprom->pa1b0 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa1b1"))) sprom->pa1b1 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa1b2"))) sprom->pa1b2 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("wl0gpio0"))) sprom->gpio0 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("wl0gpio1"))) sprom->gpio1 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("wl0gpio2"))) sprom->gpio2 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("wl0gpio3"))) sprom->gpio3 = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa0maxpwr"))) sprom->maxpwr_bg = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa1maxpwr"))) sprom->maxpwr_a = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa0itssit"))) sprom->itssi_bg = simple_strtoul(s, NULL, 0); if ((s = nvram_get("pa1itssit"))) sprom->itssi_a = simple_strtoul(s, NULL, 0); sprom->boardflags_lo = 0; if ((s = nvram_get("boardflags"))) sprom->boardflags_lo = simple_strtoul(s, NULL, 0); sprom->boardflags_hi = 0; if ((s = nvram_get("boardflags2"))) sprom->boardflags_hi = simple_strtoul(s, NULL, 0); } static int bcm47xx_get_invariants(struct ssb_bus *bus, struct ssb_init_invariants *iv) { char *s; iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM; if ((s = nvram_get("boardtype"))) iv->boardinfo.type = (u16)simple_strtoul(s, NULL, 0); if ((s = nvram_get("boardrev"))) iv->boardinfo.rev = (u16)simple_strtoul(s, NULL, 0); bcm47xx_fill_sprom(&iv->sprom); if ((s = nvram_get("cardbus"))) iv->has_cardbus_slot = !!simple_strtoul(s, NULL, 10); return 0; } void __init plat_mem_setup(void) { int i, err; char *s; struct ssb_mipscore *mcore; err = ssb_bus_ssbbus_register(&ssb, SSB_ENUM_BASE, bcm47xx_get_invariants); if (err) { const char *msg = "Failed to initialize SSB bus (err %d)\n"; cfe_printk(msg, err); /* Make sure the message gets out of the box. */ panic(msg, err); } mcore = &ssb.mipscore; s = nvram_get("kernel_args"); if (s && !strncmp(s, "console=ttyS1", 13)) { struct ssb_serial_port port; cfe_printk("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)); } for (i = 0; i < mcore->nr_serial_ports; i++) { struct ssb_serial_port *port = &(mcore->serial_ports[i]); struct uart_port s; memset(&s, 0, sizeof(s)); s.line = i; s.membase = port->regs; s.irq = port->irq + 2; s.uartclk = port->baud_base; s.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; s.iotype = SERIAL_IO_MEM; s.regshift = port->reg_shift; early_serial_setup(&s); } cfe_printk("Serial init done.\n"); _machine_restart = bcm47xx_machine_restart; _machine_halt = bcm47xx_machine_halt; pm_power_off = bcm47xx_machine_halt; board_time_init = bcm47xx_time_init; } static int __init bcm47xx_register_gpiodev(void) { static struct resource res = { .start = 0xFFFFFFFF, }; struct platform_device *pdev; pdev = platform_device_register_simple("GPIODEV", 0, &res, 1); if (!pdev) { printk(KERN_ERR "bcm47xx: GPIODEV init failed\n"); return -ENODEV; } return 0; } device_initcall(bcm47xx_register_gpiodev); EXPORT_SYMBOL(ssb);