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;
}
void *
osl_init()
{
uint32 c0reg;
sb_t *sbh;
/* Disable interrupts */
c0reg = MFC0(C0_STATUS, 0);
c0reg &= ~ST0_IE;
MTC0(C0_STATUS, 0, c0reg);
/* Scan backplane */
sbh = sb_kattach(SB_OSH);
sb_mips_init(sbh, 0);
sb_serial_init(sbh, serial_add);
/* Init malloc */
free_mem_ptr = (ulong) bss_end;
free_mem_ptr_end = ((ulong)&c0reg) - 8192; /* Enough stack? */
return ((void *)sbh);
}