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

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On 05/26/14 09:48, Hans de Goede wrote:
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.

Let keep it as this for now. I added some remarks below.

Regards,
Arend

Signed-off-by: Hans de Goede<hdegoede@xxxxxxxxxx>
---
  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) {
+			/* assign GPIO to SDIO core */
+			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 */

These names are all off. These should be:
SBSDIO_SPROM_ADDR_HIGH = SBSDIO_GPIO_SELECT
SBSDIO_CHIP_CTRL_DATA = SBSDIO_GPIO_OUT
SBSDIO_CHIP_CTRL_EN = SBSDIO_GPIO_EN

+			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;

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