[PATCH 09/11] brcmfmac: Fix OOB interrupt not working for BCM43362

Hans de Goede
2014-05-26T07:48:04Z

It has taken me a long long time to get the OOB interrupt working on the
AP6210 sdio wifi/bt module found on various Allwinner A20 boards. In the
end I found these magic register pokes in the cubietruck kernel tree:
https://github.com/cubieboard2/linux-sunxi/commit/7f08ba395617d17e7a711507503d89a50406fe7a

I'm not entirely sure if this specific to the AP6210 module, or if this
should be done for all BCM43362 sdio devices.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 0fc707c..2369a0f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -39,7 +39,9 @@
#include <brcm_hw_ids.h>
#include <brcmu_utils.h>
#include <brcmu_wifi.h>
+#include <chipcommon.h>
#include <soc.h>
+#include "chip.h"
#include "dhd_bus.h"
#include "dhd_dbg.h"
#include "sdio_host.h"
@@ -119,6 +121,7 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
{
int ret = 0;
u8 data;
+ u32 addr, gpiocontrol;
unsigned long flags;

if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
@@ -148,6 +151,21 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)

sdio_claim_host(sdiodev->func[1]);

+ if (sdiodev->bus_if->chip == BCM43362_CHIP_ID) {
+ addr = CORE_CC_REG(SI_ENUM_BASE, gpiocontrol);
+ gpiocontrol = brcmf_sdiod_regrl(sdiodev, addr, &ret);
+ gpiocontrol |= 0x2;
+ brcmf_sdiod_regwl(sdiodev, addr, gpiocontrol, &ret);
+
+ /* SPROM_ADDR_HIGH ? perhaps the defines name is off */
+ brcmf_sdiod_regwb(sdiodev, SBSDIO_SPROM_ADDR_HIGH, 0xf,
+ &ret);
+ brcmf_sdiod_regwb(sdiodev, SBSDIO_CHIP_CTRL_DATA, 0,
+ &ret);
+ brcmf_sdiod_regwb(sdiodev, SBSDIO_CHIP_CTRL_EN, 0x2,
+ &ret);
+ }
+
/* must configure SDIO_CCCR_IENx to enable irq */
data = brcmf_sdiod_regrb(sdiodev, SDIO_CCCR_IENx, &ret);
data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1;
--
1.9.3