[OpenWrt-Devel] [PATCH] [kernel] Support for new Archer C7 with gd25q128 chip in 15.05.1

[John Marrett]

Hauke,

I want to make certain I get the updated patch right; I should
integrate target/linux/generic/patches-3.18/043-mtd_GD25Q128B_support_backport_from_3.19.patch
patch (which, because of its order, results in pushes down in some
other flash files) and adjust the
target/linux/bcm53xx/patches-3.18/004-mtd-spi-nor-from-3.20.patch to
avoid a conflict because of the change?

Please confirm and I'll make the appropriate adjustments.

Thank you for taking the time to review my submission,

-JohnF

On Sun, Apr 17, 2016 at 9:04 AM, Hauke Mehrtens <hauke at hauke-m.de> wrote:
> On 04/17/2016 01:55 PM, John Marrett wrote:
>> Recent Archer C7 V2.0 units have changed flash chips to the gd25q128
>> chip, this is supported in trunk but not presently in 15.05. I would
>> like stable support for this version so I've back ported the required
>> fix [1] from the upstream kernel. I've tried to place this patch in
>> order with the other flash support patches. I've tested it and I'm
>> able to install a build of 15.05.1 on the device with this patch.
>> Wireless and other functionality appears to be working properly.
>>
>> This is my first submitted patch for OpenWrt, please let me know on
>> list or off if there are any issues.
>>
>> [1] https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/drivers/mtd/spi-nor/spi-nor.c?id=fcc87a95195236b0935183361a72e4a98bf577d8
>>
>> Signed-off-by: John Marrett <johnf at zioncluster.ca>
>>
>> diff --git a/target/linux/ar71xx/patches-3.18/414-mtd-gd25q128-support.patch
>> b/target/linux/ar71xx/
>> new file mode 100644
>> index 0000000..c4a0a94
>> --- /dev/null
>> +++ b/target/linux/ar71xx/patches-3.18/414-mtd-gd25q128-support.patch
>> @@ -0,0 +1,12 @@
>> +Index: linux-3.18.29/drivers/mtd/spi-nor/spi-nor.c
>> +===================================================================
>> +--- linux-3.18.29.orig/drivers/mtd/spi-nor/spi-nor.c   2016-04-15
>> 20:02:47.709062050 -0400
>> ++++ linux-3.18.29/drivers/mtd/spi-nor/spi-nor.c        2016-04-16
>> 07:41:06.071314788 -0400
>> +@@ -510,6 +510,7 @@
>> +       /* GigaDevice */
>> +       { "gd25q32", INFO(0xc84016, 0, 64 * 1024,  64, SECT_4K) },
>> +       { "gd25q64", INFO(0xc84017, 0, 64 * 1024, 128, SECT_4K) },
>> ++      { "gd25q128", INFO(0xc84018, 0, 64 * 1024, 256, SECT_4K) },
>> +
>> +       /* Intel/Numonyx -- xxxs33b */
>> +       { "160s33b",  INFO(0x898911, 0, 64 * 1024,  32, 0) },
>
> This patch is already in trunk at
> target/linux/generic/patches-3.18/043-mtd_GD25Q128B_support_backport_from_3.19.patch
> could you also place your change to the generic folder to keep it in
> sync with trunk.
>
> There is already a patch in cc for the bcm53xx target which also adds
> this line here:
> target/linux/bcm53xx/patches-3.18/004-mtd-spi-nor-from-3.20.patch this
> has to be modified when you add your patch to generic.
>
> Hauke
>
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