/* Get first nr AHB Slave devices, put them into dev (which is an array of nr length) */
int
amba_find_ahbmsts (amba_confarea_type * amba_conf, int vendor, int device,
amba_ahb_device * devs, int maxno)
{
unsigned int conf, mbar, addr;
int i, j, cnt;
for (cnt = i = 0; (i < amba_conf->ahbmst.devnr) && (maxno < cnt); i++) {
conf = amba_get_confword (amba_conf->ahbslv, i, 0);
if ((amba_vendor (conf) == vendor) && (amba_device (conf) == device)) {
for (j = 0; j < 4; j++) {
mbar = amba_ahb_get_membar (amba_conf->ahbmst, i, j);
addr = amba_membar_start (mbar);
if (amba_membar_type (mbar) == AMBA_TYPE_AHBIO) {
addr = AMBA_TYPE_AHBIO_ADDR (addr, amba_conf->ioarea);
} else {
/* convert address if needed */
if ((addr = addr_from (amba_conf->mmaps, addr)) == 1) {
addr = 0; /* no available memory translation available, will not be able to access
* Plug&Play information for this AHB address. Skip it.
*/
}
}
devs[cnt].start[j] = addr;
}
devs[cnt].irq = amba_irq (conf);
devs[cnt].ver = amba_ver (conf);
cnt++;
}
}
return cnt;
}
void
amba_scan (amba_confarea_type * amba_conf, unsigned int ioarea,
struct amba_mmap *mmaps)
{
unsigned int *cfg_area; /* address to configuration area */
unsigned int mbar, conf, custom;
int i, j;
unsigned int apbmst;
int maxloops = amba_conf->notroot ? 16 : 64; /* scan first bus for 64 devices, rest for 16 devices */
amba_conf->ahbmst.devnr = 0;
amba_conf->ahbslv.devnr = 0;
amba_conf->apbslv.devnr = 0;
cfg_area = (unsigned int *) (ioarea | AMBA_CONF_AREA);
amba_conf->ioarea = ioarea;
amba_conf->mmaps = mmaps;
for (i = 0; i < maxloops; i++) {
amba_insert_device (&amba_conf->ahbmst, cfg_area);
cfg_area += AMBA_AHB_CONF_WORDS;
}
cfg_area =
(unsigned int *) (ioarea | AMBA_CONF_AREA | AMBA_AHB_SLAVE_CONF_AREA);
for (i = 0; i < maxloops; i++) {
amba_insert_device (&amba_conf->ahbslv, cfg_area);
cfg_area += AMBA_AHB_CONF_WORDS;
}
for (i = 0; i < amba_conf->ahbslv.devnr; i++){
conf = amba_get_confword(amba_conf->ahbslv, i, 0);
mbar = amba_ahb_get_membar(amba_conf->ahbslv, i, 0);
if ( (amba_vendor(conf) == VENDOR_GAISLER) && (amba_device(conf) == GAISLER_AHB2AHB) ){
/* Found AHB->AHB bus bridge, scan it if more free amba_confarea_type:s available
* Custom config 1 contain ioarea.
*/
custom = amba_ahb_get_custom(amba_conf->ahbslv,i,1);
if ( amba_ver(conf) && amba_conf->next ){
amba_conf->next->notroot = 1;
amba_scan(amba_conf->next,custom,mmaps);
}
}else if ((amba_vendor(conf) == VENDOR_GAISLER) && (amba_device(conf) == GAISLER_APBMST))
{
apbmst = amba_membar_start(mbar);
if ( (apbmst=addr_from(mmaps,apbmst)) == 1 )
continue; /* no available memory translation available, will not be able to access
* Plug&Play information for this AHB/APB bridge. Skip it.
*/
cfg_area = (unsigned int *)( apbmst | AMBA_CONF_AREA);
for (j=0; (amba_conf->apbslv.devnr<AMBA_APB_SLAVES) && (j<AMBA_APB_SLAVES); j++){
amba_insert_apb_device(&amba_conf->apbslv, cfg_area, apbmst);
cfg_area += AMBA_APB_CONF_WORDS;
}
}
}
}
int rtems_leon_open_eth_driver_attach(
struct rtems_bsdnet_ifconfig *config,
int attach
)
{
int device_found = 0;
int i;
unsigned int conf, iobar;
unsigned int base_addr = 0; /* avoid warnings */
unsigned int eth_irq = 0; /* avoid warnings */
/* Scan for MAC AHB slave interface */
for (i = 0; i < amba_conf.ahbslv.devnr; i++)
{
conf = amba_get_confword(amba_conf.ahbslv, i, 0);
if (((amba_vendor(conf) == VENDOR_OPENCORES) && (amba_device(conf) == OPENCORES_ETHMAC)) ||
((amba_vendor(conf) == VENDOR_GAISLER) && (amba_device(conf) == GAISLER_ETHAHB)))
{
iobar = amba_ahb_get_membar(amba_conf.ahbslv, i, 0);
base_addr = amba_iobar_start(LEON3_IO_AREA, iobar);
eth_irq = amba_irq(conf) + 0x10;
device_found = 1;
break;
}
}
if (device_found)
{
/* clear control register and reset NIC */
*(volatile int *) base_addr = 0;
*(volatile int *) base_addr = 0x800;
*(volatile int *) base_addr = 0;
leon_open_eth_configuration.base_address = base_addr;
leon_open_eth_configuration.vector = eth_irq;
leon_open_eth_configuration.txd_count = TDA_COUNT;
leon_open_eth_configuration.rxd_count = RDA_COUNT;
/* enable 100 MHz operation only if cpu frequency >= 50 MHz */
if (LEON3_Timer_Regs->scaler_reload >= 49) leon_open_eth_configuration.en100MHz = 1;
if (rtems_open_eth_driver_attach( config, &leon_open_eth_configuration )) {
LEON_Clear_interrupt(leon_open_eth_configuration.vector);
LEON_Unmask_interrupt(leon_open_eth_configuration.vector);
}
}
return 0;
}
void amba_prinf_config(void) {
char devbuf[128];
char vendorbuf[128];
unsigned int conf;
int i = 0;
int j = 0;
unsigned int addr;
unsigned int m;
printf(" Vendors Slaves\n");
printf("Ahb masters:\n");
i = 0;
while (i < amba_conf.ahbmst.devnr) {
conf = amba_get_confword(amba_conf.ahbmst, i, 0);
vendor_dev_string(conf, vendorbuf, devbuf);
printf("%2i(%2x:%3x|%2i): %16s %16s \n", i, amba_vendor(conf),
amba_device(conf), amba_irq(conf), vendorbuf, devbuf);
for (j = 0; j < 4; j++) {
m = amba_ahb_get_membar(amba_conf.ahbmst, i, j);
if (m) {
addr = amba_membar_start(m);
printf(" +%i: 0x%x \n", j, addr);
}
}
i++;
}
printf("Ahb slaves:\n");
i = 0;
while (i < amba_conf.ahbslv.devnr) {
conf = amba_get_confword(amba_conf.ahbslv, i, 0);
vendor_dev_string(conf, vendorbuf, devbuf);
printf("%2i(%2x:%3x|%2i): %16s %16s \n", i, amba_vendor(conf),
amba_device(conf), amba_irq(conf), vendorbuf, devbuf);
for (j = 0; j < 4; j++) {
m = amba_ahb_get_membar(amba_conf.ahbslv, i, j);
if (m) {
addr = amba_membar_start(m);
if (amba_membar_type(m) == AMBA_TYPE_AHBIO) {
addr = AMBA_TYPE_AHBIO_ADDR(addr);
} else if (amba_membar_type(m) ==
AMBA_TYPE_APBIO) {
printf("Warning: apbio membar\n");
}
printf(" +%i: 0x%x (raw:0x%x)\n", j, addr, m);
}
}
i++;
}
printf("Apb slaves:\n");
i = 0;
while (i < amba_conf.apbslv.devnr) {
conf = amba_get_confword(amba_conf.apbslv, i, 0);
vendor_dev_string(conf, vendorbuf, devbuf);
printf("%2i(%2x:%3x|%2i): %16s %16s \n", i, amba_vendor(conf),
amba_device(conf), amba_irq(conf), vendorbuf, devbuf);
m = amba_apb_get_membar(amba_conf.apbslv, i);
addr = amba_iobar_start(amba_conf.apbslv.apbmst[i], m);
printf(" +%2i: 0x%x (raw:0x%x) \n", 0, addr, m);
i++;
}
}
