163 lines
4.6 KiB
C
163 lines
4.6 KiB
C
/*
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* Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
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* Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
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* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2006 Michael Buesch
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/tty.h>
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#include <linux/serial.h>
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#include <linux/serial_core.h>
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#include <linux/serial_reg.h>
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#include <asm/bootinfo.h>
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#include <asm/time.h>
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#include <asm/reboot.h>
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#include <asm/cfe.h>
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#include <linux/pm.h>
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#include <linux/ssb/ssb.h>
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#include <nvram.h>
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extern void bcm47xx_pci_init(void);
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extern void bcm47xx_time_init(void);
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struct ssb_bus ssb;
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static void bcm47xx_machine_restart(char *command)
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{
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printk(KERN_ALERT "Please stand by while rebooting the system...\n");
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local_irq_disable();
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/* CFE has a reboot callback, but that does not work.
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* Oopses with: Reserved instruction in kernel code.
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*/
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/* Set the watchdog timer to reset immediately */
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ssb_chipco_watchdog(&ssb.chipco, 1);
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while (1)
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cpu_relax();
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}
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static void bcm47xx_machine_halt(void)
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{
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/* Disable interrupts and watchdog and spin forever */
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local_irq_disable();
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ssb_chipco_watchdog(&ssb.chipco, 0);
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while (1)
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cpu_relax();
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}
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static void e_aton(char *str, char *dest)
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{
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int i = 0;
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if (str == NULL) {
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memset(dest, 0, 6);
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return;
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}
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for (;;) {
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dest[i++] = (char) simple_strtoul(str, NULL, 16);
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str += 2;
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if (!*str++ || i == 6)
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break;
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}
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}
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static void bcm47xx_fill_sprom(struct ssb_sprom *sprom)
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{
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// TODO
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}
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static void bcm47xx_fill_sprom_nvram(struct ssb_sprom *sprom)
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{
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char *s;
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memset(sprom, 0, sizeof(struct ssb_sprom));
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sprom->revision = 3;
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if ((s = nvram_get("et0macaddr")))
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e_aton(s, sprom->r1.et0mac);
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if ((s = nvram_get("et1macaddr")))
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e_aton(s, sprom->r1.et1mac);
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if ((s = nvram_get("et0phyaddr")))
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sprom->r1.et0phyaddr = simple_strtoul(s, NULL, 10);
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if ((s = nvram_get("et1phyaddr")))
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sprom->r1.et1phyaddr = simple_strtoul(s, NULL, 10);
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}
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void __init plat_mem_setup(void)
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{
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int i, err;
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char *s;
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struct ssb_mipscore *mcore;
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err = ssb_bus_ssbbus_register(&ssb, SSB_ENUM_BASE, bcm47xx_fill_sprom);
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if (err) {
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const char *msg = "Failed to initialize SSB bus (err %d)\n";
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cfe_printk(msg, err); /* Make sure the message gets out of the box. */
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panic(msg, err);
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}
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mcore = &ssb.mipscore;
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/* FIXME: the nvram init depends on the ssb being fully initializes,
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* can't use the fill_sprom callback yet! */
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bcm47xx_fill_sprom_nvram(&ssb.sprom);
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s = nvram_get("kernel_args");
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if (s && !strncmp(s, "console=ttyS1", 13)) {
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struct ssb_serial_port port;
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cfe_printk("Swapping serial ports!\n");
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/* swap serial ports */
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memcpy(&port, &mcore->serial_ports[0], sizeof(port));
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memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1], sizeof(port));
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memcpy(&mcore->serial_ports[1], &port, sizeof(port));
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}
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for (i = 0; i < mcore->nr_serial_ports; i++) {
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struct ssb_serial_port *port = &(mcore->serial_ports[i]);
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struct uart_port s;
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memset(&s, 0, sizeof(s));
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s.line = i;
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s.membase = port->regs;
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s.irq = port->irq + 2;//FIXME?
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s.uartclk = port->baud_base;
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s.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
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s.iotype = SERIAL_IO_MEM;
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s.regshift = port->reg_shift;
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early_serial_setup(&s);
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}
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cfe_printk("Serial init done.\n");
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_machine_restart = bcm47xx_machine_restart;
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_machine_halt = bcm47xx_machine_halt;
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pm_power_off = bcm47xx_machine_halt;
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board_time_init = bcm47xx_time_init;//FIXME move into ssb
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}
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EXPORT_SYMBOL(ssb);
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