On Fri, Apr 9, 2010 at 13:26, Felix Fietkau <nbd@xxxxxxxxxxx> wrote:
> On 2010-04-09 2:23 PM, Helmut Schaa wrote:
>> Am Freitag 09 April 2010 schrieb Felix Fietkau:
>>> On 2010-04-09 1:32 PM, Helmut Schaa wrote:
>>> > Am Freitag 09 April 2010 schrieb Felix Fietkau:
>>> >> On 2010-04-09 7:10 AM, Gertjan van Wingerde wrote:
>>> >> > On 04/09/10 00:28, Felix Fietkau wrote:
>>> >> >> On 2010-04-08 11:50 PM, Gertjan van Wingerde wrote:
>>> >> >>> Only include definitions for RT chipsets that are also used inside the
>>> >> >>> Ralink vendor drivers.
>>> >> >>>
>>> >> >>> Signed-off-by: Gertjan van Wingerde <gwingerde@xxxxxxxxx>
>>> >> >>> ---
>>> >> >>> drivers/net/wireless/rt2x00/rt2800lib.c | 13 -------------
>>> >> >>> drivers/net/wireless/rt2x00/rt2x00.h | 7 +++----
>>> >> >>> 2 files changed, 3 insertions(+), 17 deletions(-)
>>> >> >>>
>>> >> >>> diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
>>> >> >>> index 394c8e4..4bc7e09 100644
>>> >> >>> --- a/drivers/net/wireless/rt2x00/rt2800lib.c
>>> >> >>> +++ b/drivers/net/wireless/rt2x00/rt2800lib.c
>>> >> >>> @@ -1209,10 +1209,7 @@ int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
>>> >> >>> rt2x00_set_field32(®, MAX_LEN_CFG_MAX_MPDU, AGGREGATION_SIZE);
>>> >> >>> if ((rt2x00_rt(rt2x00dev, RT2872) &&
>>> >> >>> (rt2x00_rev(rt2x00dev) >= RT2880E_VERSION)) ||
>>> >> >>> - rt2x00_rt(rt2x00dev, RT2880) ||
>>> >> >>> rt2x00_rt(rt2x00dev, RT2883) ||
>>> >> >>> - rt2x00_rt(rt2x00dev, RT2890) ||
>>> >> >>> - rt2x00_rt(rt2x00dev, RT3052) ||
>>> >> >>> (rt2x00_rt(rt2x00dev, RT3070) &&
>>> >> >>> (rt2x00_rev(rt2x00dev) < RT3070_VERSION)))
>>> >> >>> rt2x00_set_field32(®, MAX_LEN_CFG_MAX_PSDU, 2);
>>> >> >>> @@ -1511,12 +1508,6 @@ int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
>>> >> >>> rt2800_bbp_write(rt2x00dev, 105, 0x05);
>>> >> >>> }
>>> >> >>>
>>> >> >>> - if (rt2x00_rt(rt2x00dev, RT3052)) {
>>> >> >>> - rt2800_bbp_write(rt2x00dev, 31, 0x08);
>>> >> >>> - rt2800_bbp_write(rt2x00dev, 78, 0x0e);
>>> >> >>> - rt2800_bbp_write(rt2x00dev, 80, 0x08);
>>> >> >>> - }
>>> >> >>> -
>>> >> >> Why are you removing support for RT3052? IMHO those writes were
>>> >> >> necessary, last time I tested the rt2800pci code on the RT3052 WiSoC.
>>> >> >
>>> >> > That is because I have not been able to find them in any of the Ralink vendor drivers.
>>> >> > Actually, none of the Ralink vendor drivers mention an RT chipset that identifies itself
>>> >> > as a RT3052. The only mentioning Ive seen is RT305x devices that identify themselves as
>>> >> > RT2872 devices, but even for them I haven't found these BBP initializations.
>>> >> > That's why I removed this part.
>>> >> >
>>> >> > I have no problem re-instating this if I can find some evidence that these devices
>>> >> > actually exist.
>>> >> These chipsets won't show up in STA-only drivers, because they belong to
>>> >> embedded APs. If you download GPL sources for devices such as ASUS
>>> >> RT-N15 you will find ifdefs for CONFIG_RALINK_RT3052 and the above
>>> >> values in BBPRegTable in the driver sources.
>>> >> I have a few devices based on RT3052, which is why I added this code.
>>> >> At some point I even had basic Rx/Tx working on it, but haven't tested
>>> >> in a while.
>>> >
>>> > I also couldn't find any evidence of the existence of an 3052 _rt_ chipset.
>>> > However, the ralink drivers defines a 3052 _rf_ chip:
>>> >
>>> > #define RFIC_3052 9 // 2.4G/5G 2T2R
>>> RT3052 is the name of the whole WiSoC chip, not just the MAC or RF part
>>> of it. Since wifi is integrated in the SoC, I don't think there is a
>>> separate name for just the wifi part.
>>
>> There is. I have one 3052 and one 3050 board (basically a 3052 but only
>> 1T1R), and both identify themselves as RT2872 with different rf "chips"
>> (of course, there are no additional chips). Hence, the check for RT3052
>> was never true on both platforms.
> Back when I tested it, I forced the chip to identify itself as RT3052 by
> taking the id from the platform device.
>
>>> > I don't have such an rf chip in my devices but I don't think the BPP
>>> > register setup should depend on the actual rf chip. So, if the register
>>> > setup is really needed we should maybe check for rt2x00_is_soc instead
>>> > of removing the code?
>>> Yes, but rt2x00_is_soc() is not enough, since RT2880 is also SoC, but
>>> slightly different compared to RT3052. I've only tested RT3052 myself.
>>
>> Right. So, from what I've seen so far it seems like all 305x boards identify
>> themselves as rt2872. Hence, we can just replace 3052 with 2872 in the above
>> check and leave the code as is.
> OK, if that doesn't conflict with any PCI based stuff...
I have a rt2880 based SOC device, my main AP Minitar, I'll hook up the
console to it and report what RT-RF chipset combination it has.
>
> - Felix
> --
Luis Correia
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