168 lines
4.5 KiB
C
168 lines
4.5 KiB
C
/*
|
|
* For License see notice in hfc_multi.c
|
|
*
|
|
* special IO and init functions for the embedded XHFC board
|
|
* from Speech Design
|
|
*
|
|
*/
|
|
|
|
#include <asm/8xx_immap.h>
|
|
|
|
/* Change this to the value used by your board */
|
|
#ifndef IMAP_ADDR
|
|
#define IMAP_ADDR 0xFFF00000
|
|
#endif
|
|
|
|
static void
|
|
#ifdef HFC_REGISTER_DEBUG
|
|
HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val,
|
|
const char *function, int line)
|
|
#else
|
|
HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val)
|
|
#endif
|
|
{
|
|
hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
|
|
writeb(reg, hc->xhfc_memaddr);
|
|
hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
|
|
writeb(val, hc->xhfc_memdata);
|
|
}
|
|
static u_char
|
|
#ifdef HFC_REGISTER_DEBUG
|
|
HFC_inb_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line)
|
|
#else
|
|
HFC_inb_embsd(struct hfc_multi *hc, u_char reg)
|
|
#endif
|
|
{
|
|
hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
|
|
writeb(reg, hc->xhfc_memaddr);
|
|
hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
|
|
return readb(hc->xhfc_memdata);
|
|
}
|
|
static u_short
|
|
#ifdef HFC_REGISTER_DEBUG
|
|
HFC_inw_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line)
|
|
#else
|
|
HFC_inw_embsd(struct hfc_multi *hc, u_char reg)
|
|
#endif
|
|
{
|
|
hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
|
|
writeb(reg, hc->xhfc_memaddr);
|
|
hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
|
|
return readb(hc->xhfc_memdata);
|
|
}
|
|
static void
|
|
#ifdef HFC_REGISTER_DEBUG
|
|
HFC_wait_embsd(struct hfc_multi *hc, const char *function, int line)
|
|
#else
|
|
HFC_wait_embsd(struct hfc_multi *hc)
|
|
#endif
|
|
{
|
|
hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
|
|
writeb(R_STATUS, hc->xhfc_memaddr);
|
|
hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
|
|
while (readb(hc->xhfc_memdata) & V_BUSY)
|
|
cpu_relax();
|
|
}
|
|
|
|
/* write fifo data (EMBSD) */
|
|
void
|
|
write_fifo_embsd(struct hfc_multi *hc, u_char *data, int len)
|
|
{
|
|
hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
|
|
*hc->xhfc_memaddr = A_FIFO_DATA0;
|
|
hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
|
|
while (len) {
|
|
*hc->xhfc_memdata = *data;
|
|
data++;
|
|
len--;
|
|
}
|
|
}
|
|
|
|
/* read fifo data (EMBSD) */
|
|
void
|
|
read_fifo_embsd(struct hfc_multi *hc, u_char *data, int len)
|
|
{
|
|
hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
|
|
*hc->xhfc_memaddr = A_FIFO_DATA0;
|
|
hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
|
|
while (len) {
|
|
*data = (u_char)(*hc->xhfc_memdata);
|
|
data++;
|
|
len--;
|
|
}
|
|
}
|
|
|
|
static int
|
|
setup_embedded(struct hfc_multi *hc, struct hm_map *m)
|
|
{
|
|
printk(KERN_INFO
|
|
"HFC-multi: card manufacturer: '%s' card name: '%s' clock: %s\n",
|
|
m->vendor_name, m->card_name, m->clock2 ? "double" : "normal");
|
|
|
|
hc->pci_dev = NULL;
|
|
if (m->clock2)
|
|
test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip);
|
|
|
|
hc->leds = m->leds;
|
|
hc->ledstate = 0xAFFEAFFE;
|
|
hc->opticalsupport = m->opticalsupport;
|
|
|
|
hc->pci_iobase = 0;
|
|
hc->pci_membase = 0;
|
|
hc->xhfc_membase = NULL;
|
|
hc->xhfc_memaddr = NULL;
|
|
hc->xhfc_memdata = NULL;
|
|
|
|
/* set memory access methods */
|
|
if (m->io_mode) /* use mode from card config */
|
|
hc->io_mode = m->io_mode;
|
|
switch (hc->io_mode) {
|
|
case HFC_IO_MODE_EMBSD:
|
|
test_and_set_bit(HFC_CHIP_EMBSD, &hc->chip);
|
|
hc->slots = 128; /* required */
|
|
/* fall through */
|
|
hc->HFC_outb = HFC_outb_embsd;
|
|
hc->HFC_inb = HFC_inb_embsd;
|
|
hc->HFC_inw = HFC_inw_embsd;
|
|
hc->HFC_wait = HFC_wait_embsd;
|
|
hc->read_fifo = read_fifo_embsd;
|
|
hc->write_fifo = write_fifo_embsd;
|
|
hc->xhfc_origmembase = XHFC_MEMBASE + XHFC_OFFSET * hc->id;
|
|
hc->xhfc_membase = (u_char *)ioremap(hc->xhfc_origmembase,
|
|
XHFC_MEMSIZE);
|
|
if (!hc->xhfc_membase) {
|
|
printk(KERN_WARNING
|
|
"HFC-multi: failed to remap xhfc address space. "
|
|
"(internal error)\n");
|
|
return -EIO;
|
|
}
|
|
hc->xhfc_memaddr = (u_long *)(hc->xhfc_membase + 4);
|
|
hc->xhfc_memdata = (u_long *)(hc->xhfc_membase);
|
|
printk(KERN_INFO
|
|
"HFC-multi: xhfc_membase:%#lx xhfc_origmembase:%#lx "
|
|
"xhfc_memaddr:%#lx xhfc_memdata:%#lx\n",
|
|
(u_long)hc->xhfc_membase, hc->xhfc_origmembase,
|
|
(u_long)hc->xhfc_memaddr, (u_long)hc->xhfc_memdata);
|
|
break;
|
|
default:
|
|
printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/* Prepare the MPC8XX PortA 10 as output (address/data selector) */
|
|
hc->immap = (struct immap *)(IMAP_ADDR);
|
|
hc->immap->im_ioport.iop_papar &= ~(PA_XHFC_A0);
|
|
hc->immap->im_ioport.iop_paodr &= ~(PA_XHFC_A0);
|
|
hc->immap->im_ioport.iop_padir |= PA_XHFC_A0;
|
|
|
|
/* Prepare the MPC8xx PortB __X__ as input (ISDN__X__IRQ) */
|
|
hc->pb_irqmsk = (PB_XHFC_IRQ1 << hc->id);
|
|
hc->immap->im_cpm.cp_pbpar &= ~(hc->pb_irqmsk);
|
|
hc->immap->im_cpm.cp_pbodr &= ~(hc->pb_irqmsk);
|
|
hc->immap->im_cpm.cp_pbdir &= ~(hc->pb_irqmsk);
|
|
|
|
/* At this point the needed config is done */
|
|
/* fifos are still not enabled */
|
|
return 0;
|
|
}
|