brcmfmac: restrict dongle txglom disable to old SDIO core
txglomming is a firmware feature for sdio bus interface. For SDIO
device cores newer than revision 11, the default setting of
firmware should be used instead of disabling it from the host side.
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 076b772..1616c14 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -4169,6 +4169,9 @@
{
int ret;
struct brcmf_sdio *bus;
+ struct brcmf_bus_dcmd *dlst;
+ u32 dngl_txglom;
+ u8 idx;
brcmf_dbg(TRACE, "Enter\n");
@@ -4254,6 +4257,18 @@
brcmf_sdio_debugfs_create(bus);
brcmf_dbg(INFO, "completed!!\n");
+ /* sdio bus core specific dcmd */
+ idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_SDIO_DEV);
+ dlst = kzalloc(sizeof(struct brcmf_bus_dcmd), GFP_KERNEL);
+ if (bus->ci->c_inf[idx].rev < 12 && dlst) {
+ /* for sdio core rev < 12, disable txgloming */
+ dngl_txglom = 0;
+ dlst->name = "bus:txglom";
+ dlst->param = (char *)&dngl_txglom;
+ dlst->param_len = sizeof(u32);
+ list_add(&dlst->list, &bus->sdiodev->bus_if->dcmd_list);
+ }
+
/* if firmware path present try to download and bring up bus */
ret = brcmf_bus_start(bus->sdiodev->dev);
if (ret != 0) {