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Re: No scan results from wl1271-sdio

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On Tue, 2010-11-23 at 21:13 +0200, Ido Yariv wrote:
> On Tue, Nov 23, 2010 at 10:34:14AM -0500, Josh Watts wrote:
> > I'm wondering if there's maybe some
> > minor component or setting that I'm missing (like radio-enable, or
> > perhaps limit to 802.11a, etc)?
> Hi Josh,
> 
> These kind of problems could be caused by using a wrong reference clock
> value. Could you please double check that the reference clock
> (board_ref_clock) matches the reference clock connected to the wl1271?
> 
> Regards,
> Ido.

Does board_ref_clock refer to the SLOW_CLK signal fed to the TiWi board?
The datasheet, and thus the board we designed, shows this signal should
be 32KHz, but when I look through the wl12xx driver source, I can only
find options for 19.2, 26, 38.4, 40 and 33.6. Currently I have
board_ref_clock set to 1, which I think is supposed to be REF_FREQ_26_0?
(I borrowed the line of code from the board-zoom-peripherals.c)

-- board-zoom-peripherals.c --
struct wl12xx_platform_data omap_zoom_wlan_data __initdata = {
        .irq = OMAP_GPIO_IRQ(OMAP_ZOOM_WLAN_IRQ_GPIO),
        /* ZOOM ref clock is 26 MHz */
        .board_ref_clock = 1,
};
-- end clip --

-- reg.h --
#define REF_FREQ_19_2                       0
#define REF_FREQ_26_0                       1
#define REF_FREQ_38_4                       2
#define REF_FREQ_40_0                       3
#define REF_FREQ_33_6                       4
#define REF_FREQ_NUM                        5
-- end clip --

--
Josh Watts
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