bgmac: reset all cores on Northstar SoC
On the Northstar SoC (BCM4707 and BCM53018) we have to enable all GMAC cores when we just want to use on. We iterate over all the cores and activate them. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
48e07fbe07
commit
622a521fa4
|
@ -1446,6 +1446,27 @@ static int bgmac_probe(struct bcma_device *core)
|
|||
|
||||
bgmac_chip_reset(bgmac);
|
||||
|
||||
/* For Northstar, we have to take all GMAC core out of reset */
|
||||
if (core->id.id == BCMA_CHIP_ID_BCM4707 ||
|
||||
core->id.id == BCMA_CHIP_ID_BCM53018) {
|
||||
struct bcma_device *ns_core;
|
||||
int ns_gmac;
|
||||
|
||||
/* Northstar has 4 GMAC cores */
|
||||
for (ns_gmac = 0; ns_gmac < 4; ns_gmac++) {
|
||||
/* As northstar requirement, we have to reset all GAMCs
|
||||
* before accessing one. bgmac_chip_reset() call
|
||||
* bcma_core_enable() for this core. Then the other
|
||||
* three GAMCs didn't reset. We do it here.
|
||||
*/
|
||||
ns_core = bcma_find_core_unit(core->bus,
|
||||
BCMA_CORE_MAC_GBIT,
|
||||
ns_gmac);
|
||||
if (ns_core && !bcma_core_is_enabled(ns_core))
|
||||
bcma_core_enable(ns_core, 0);
|
||||
}
|
||||
}
|
||||
|
||||
err = bgmac_dma_alloc(bgmac);
|
||||
if (err) {
|
||||
bgmac_err(bgmac, "Unable to alloc memory for DMA\n");
|
||||
|
|
Loading…
Reference in a new issue