[OpenWrt-Devel] [PATCH][ar71xx] Mikrotik Routerboard RB2011 switch fix

[Matt Lee]

Hi David,

I tested on 2011UiAS-2HnD and 2011UAS-2HnD, and for me, this works better
with pll_1000 set to 0x6f000000.  But I have to make more testing.

I will conitnue testing...

Thanks





On Tue, Dec 23, 2014 at 1:57 PM, David Hutchison <dhutchison at bluemesh.net>
wrote:

> Hello,
>
> Can you try: ath79_eth0_pll_data.pll_1000 = 0x6f0000000;
>
> This is the value I originally found on the 951G, I tried to toggle as
> many bits as possible and narrow down from there. John Crispin found
> some documentation and we narrowed it down to 0x3e000000 for the 951G.
> He is actually working on a patch that will grab the correct
> ath79_eth0_pll_data.pll_1000 value from the bootloader. That way this
> becomes dynamic. I do not know the progress he has made on it.
>
> http://comments.gmane.org/gmane.comp.embedded.openwrt.devel/28589
>
> Here is our original thread, where John posted the relevant datasheet.
> You can take the same approach we did, and narrow down to find your
> correct bits.
>
> It may also be easier to wait for his patch where he will dynamically set
> it.
>
> Hope this helps,
>
> -- Davey
>
> On Tue, Dec 23, 2014 at 11:23 AM, Matt Lee <mattlee2nix at gmail.com> wrote:
> > Hi Chris,
> >
> >>This patch is the same as the Routerboard 951G fix, I've built this
> >>and tested it on my rb-2011uias-2hnd.  However we should check that it
> >>also works on other/older RB2011 routers which did work OK with the
> >>unpatched code.
> >>
> >>diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
> >>b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
> >>index b73fae6..951ab94 100644
> >>--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
> >>+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
> >>@@ -270,6 +270,7 @@ static int __init rb2011_setup(u32 flags)
> >>        rb2011_nand_init();
> >>
> >>        ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
> >>+                                   AR934X_ETH_CFG_RXD_DELAY |
> >>                                   AR934X_ETH_CFG_SW_ONLY_MODE);
> >>
> >>        ath79_register_mdio(1, 0x0);
> >>@@ -283,7 +284,7 @@ static int __init rb2011_setup(u32 flags)
> >>        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
> >>        ath79_eth0_data.phy_mask = BIT(0);
> >>        ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
> >>-       ath79_eth0_pll_data.pll_1000 = 0x06000000;
> >>+       ath79_eth0_pll_data.pll_1000 = 0x3e000000;
> >>
> >>        ath79_register_eth(0);
> >>
> >>--
> >>Chris Green
> > This patch is not working correctly for me on the 2011UiAS-2HnD.  Many
> > packets are dropped, and I can see many FCS Errors and RxBadByte.
> >
> > root at OpenWrt:/# swconfig dev ag71xx-mdio.0 port 0 show
> > Port 0:
> >         mib: Port 0 MIB counters
> > RxBroad     : 8
> > RxPause     : 0
> > RxMulti     : 15
> > RxFcsErr    : 800
> > RxAlignErr  : 0
> > RxRunt      : 0
> > RxFragment  : 0
> > Rx64Byte    : 7
> > Rx128Byte   : 17323
> > Rx256Byte   : 6
> > Rx512Byte   : 9
> > Rx1024Byte  : 0
> > Rx1518Byte  : 0
> > RxMaxByte   : 0
> > RxTooLong   : 0
> > RxGoodByte  : 1145334
> > RxBadByte   : 65266
> > RxOverFlow  : 0
> > Filtered    : 11
> > TxBroad     : 244
> > TxPause     : 0
> > TxMulti     : 170
> > TxUnderRun  : 0
> > Tx64Byte    : 21
> > Tx128Byte   : 360
> > Tx256Byte   : 20
> > Tx512Byte   : 44
> > Tx1024Byte  : 14459
> > Tx1518Byte  : 3
> > TxMaxByte   : 5683
> > TxOverSize  : 0
> > TxByte      : 16836688
> > TxCollision : 0
> > TxAbortCol  : 0
> > TxMultiCol  : 0
> > TxSingleCol : 0
> > TxExcDefer  : 0
> > TxDefer     : 0
> > TxLateCol   : 0
> >         pvid: 0
> >         link: port:0 link:up speed:1000baseT full-duplex txflow rxflow
> >
> > How can we determine the right value for the
> ath79_eth0_pll_data.pll_1000 ?
> >
> > -matt
> >
> >
> > _______________________________________________
> > openwrt-devel mailing list
> > openwrt-devel at lists.openwrt.org
> > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
> >
>
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