mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-19 14:29:43 +02:00
7ed9009bbd
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7092 3c298f89-4303-0410-b956-a3cf2f4a3e73
242 lines
6.1 KiB
C
242 lines
6.1 KiB
C
/*
|
|
* Generic setup routines for Broadcom MIPS boards
|
|
*
|
|
* Copyright (C) 2005 Felix Fietkau <nbd@openwrt.org>
|
|
*
|
|
* 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.
|
|
*
|
|
*
|
|
* Copyright 2005, Broadcom Corporation
|
|
* All Rights Reserved.
|
|
*
|
|
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
|
|
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
|
|
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/serialP.h>
|
|
#include <linux/ide.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/cpu.h>
|
|
#include <asm/time.h>
|
|
#include <asm/reboot.h>
|
|
|
|
#include <typedefs.h>
|
|
#include <osl.h>
|
|
#include <sbutils.h>
|
|
#include <bcmutils.h>
|
|
#include <bcmnvram.h>
|
|
#include <sbhndmips.h>
|
|
#include <hndmips.h>
|
|
#include <trxhdr.h>
|
|
|
|
/* Virtual IRQ base, after last hw IRQ */
|
|
#define SBMIPS_VIRTIRQ_BASE 6
|
|
|
|
/* # IRQs, hw and sw IRQs */
|
|
#define SBMIPS_NUMIRQS 8
|
|
|
|
/* Global SB handle */
|
|
sb_t *bcm947xx_sbh = NULL;
|
|
spinlock_t bcm947xx_sbh_lock = SPIN_LOCK_UNLOCKED;
|
|
|
|
/* Convenience */
|
|
#define sbh bcm947xx_sbh
|
|
#define sbh_lock bcm947xx_sbh_lock
|
|
|
|
extern void bcm947xx_time_init(void);
|
|
extern void bcm947xx_timer_setup(struct irqaction *irq);
|
|
|
|
#ifdef CONFIG_REMOTE_DEBUG
|
|
extern void set_debug_traps(void);
|
|
extern void rs_kgdb_hook(struct serial_state *);
|
|
extern void breakpoint(void);
|
|
#endif
|
|
|
|
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
|
|
extern struct ide_ops std_ide_ops;
|
|
#endif
|
|
|
|
/* Kernel command line */
|
|
char arcs_cmdline[CL_SIZE] __initdata = CONFIG_CMDLINE;
|
|
extern void sb_serial_init(sb_t *sbh, void (*add)(void *regs, uint irq, uint baud_base, uint reg_shift));
|
|
|
|
void
|
|
bcm947xx_machine_restart(char *command)
|
|
{
|
|
printk("Please stand by while rebooting the system...\n");
|
|
|
|
/* Set the watchdog timer to reset immediately */
|
|
__cli();
|
|
sb_watchdog(sbh, 1);
|
|
while (1);
|
|
}
|
|
|
|
void
|
|
bcm947xx_machine_halt(void)
|
|
{
|
|
printk("System halted\n");
|
|
|
|
/* Disable interrupts and watchdog and spin forever */
|
|
__cli();
|
|
sb_watchdog(sbh, 0);
|
|
while (1);
|
|
}
|
|
|
|
#ifdef CONFIG_SERIAL
|
|
|
|
static int ser_line = 0;
|
|
|
|
typedef struct {
|
|
void *regs;
|
|
uint irq;
|
|
uint baud_base;
|
|
uint reg_shift;
|
|
} serial_port;
|
|
|
|
static serial_port ports[4];
|
|
static int num_ports = 0;
|
|
|
|
static void
|
|
serial_add(void *regs, uint irq, uint baud_base, uint reg_shift)
|
|
{
|
|
ports[num_ports].regs = regs;
|
|
ports[num_ports].irq = irq;
|
|
ports[num_ports].baud_base = baud_base;
|
|
ports[num_ports].reg_shift = reg_shift;
|
|
num_ports++;
|
|
}
|
|
|
|
static void
|
|
do_serial_add(serial_port *port)
|
|
{
|
|
void *regs;
|
|
uint irq;
|
|
uint baud_base;
|
|
uint reg_shift;
|
|
struct serial_struct s;
|
|
|
|
regs = port->regs;
|
|
irq = port->irq;
|
|
baud_base = port->baud_base;
|
|
reg_shift = port->reg_shift;
|
|
|
|
memset(&s, 0, sizeof(s));
|
|
|
|
s.line = ser_line++;
|
|
s.iomem_base = regs;
|
|
s.irq = irq + 2;
|
|
s.baud_base = baud_base / 16;
|
|
s.flags = ASYNC_BOOT_AUTOCONF;
|
|
s.io_type = SERIAL_IO_MEM;
|
|
s.iomem_reg_shift = reg_shift;
|
|
|
|
if (early_serial_setup(&s) != 0) {
|
|
printk(KERN_ERR "Serial setup failed!\n");
|
|
}
|
|
}
|
|
|
|
#endif /* CONFIG_SERIAL */
|
|
|
|
void __init
|
|
brcm_setup(void)
|
|
{
|
|
char *s;
|
|
int i;
|
|
char *value;
|
|
|
|
/* Get global SB handle */
|
|
sbh = sb_kattach();
|
|
|
|
/* Initialize clocks and interrupts */
|
|
sb_mips_init(sbh, SBMIPS_VIRTIRQ_BASE);
|
|
|
|
if (BCM330X(current_cpu_data.processor_id) &&
|
|
(read_c0_diag() & BRCM_PFC_AVAIL)) {
|
|
/*
|
|
* Now that the sbh is inited set the proper PFC value
|
|
*/
|
|
printk("Setting the PFC to its default value\n");
|
|
enable_pfc(PFC_AUTO);
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_SERIAL
|
|
sb_serial_init(sbh, serial_add);
|
|
|
|
/* reverse serial ports if nvram variable starts with console=ttyS1 */
|
|
/* Initialize UARTs */
|
|
s = nvram_get("kernel_args");
|
|
if (!s) s = "";
|
|
if (!strncmp(s, "console=ttyS1", 13)) {
|
|
for (i = num_ports; i; i--)
|
|
do_serial_add(&ports[i - 1]);
|
|
} else {
|
|
for (i = 0; i < num_ports; i++)
|
|
do_serial_add(&ports[i]);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
|
|
ide_ops = &std_ide_ops;
|
|
#endif
|
|
|
|
/* Override default command line arguments */
|
|
value = nvram_get("kernel_cmdline");
|
|
if (value && strlen(value) && strncmp(value, "empty", 5))
|
|
strncpy(arcs_cmdline, value, sizeof(arcs_cmdline));
|
|
|
|
|
|
/* Generic setup */
|
|
_machine_restart = bcm947xx_machine_restart;
|
|
_machine_halt = bcm947xx_machine_halt;
|
|
_machine_power_off = bcm947xx_machine_halt;
|
|
|
|
board_time_init = bcm947xx_time_init;
|
|
board_timer_setup = bcm947xx_timer_setup;
|
|
}
|
|
|
|
const char *
|
|
get_system_type(void)
|
|
{
|
|
static char s[32];
|
|
|
|
if (bcm947xx_sbh) {
|
|
sprintf(s, "Broadcom BCM%X chip rev %d", sb_chip(bcm947xx_sbh),
|
|
sb_chiprev(bcm947xx_sbh));
|
|
return s;
|
|
}
|
|
else
|
|
return "Broadcom BCM947XX";
|
|
}
|
|
|
|
void __init
|
|
bus_error_init(void)
|
|
{
|
|
}
|
|
|