These are more of RFC, because I can't test if 1/2 is really fixes anything, and not sure how much 2/2 is needed - maybe error it fixes happens just in my setup (and also I'm not sure if 2 seconds is a good value for timeout, because I have no idea, how much time it takes for PLL to lock when everything) But anyway... While trying to make PCIe work on Harmony board, I've noticed that pinmux groups for PCIe related signals are tristated, which looked suspicious. So I fixed that - that's the patch 1/2. Sadly, even with this fix and 3.3v regulator patch[1] applied, PCIe still doesn't work for me. Usually driver just loops infinitely in PLL lock waiting code (that was the reason for writing patch 2/2 in this mini-series). Couple of times I observed that after about 20-30 seconds of waiting it passed PLL lock test and continue further, but then it failed to detect a link with PCIe card. And I can't even reproduce this anymore. Does anyone have working PCIe on Harmony? Can you please share the details of your setup - what bootloader are you using, which version of kernel, some additional patches maybe? Is there some secret tricks which are needed? I've tried several combinations of different kernels and bootloaders, but still can't find even a one which works. [1] http://www.spinics.net/lists/linux-tegra/msg04148.html Dmitry Artamonow (2): arm/tegra: fix harmony pinmux for PCIe arm/tegra: add timeout to PCIe PLL lock detection loop arch/arm/mach-tegra/board-harmony-pinmux.c | 6 +++--- arch/arm/mach-tegra/pcie.c | 14 +++++++++++--- 2 files changed, 14 insertions(+), 6 deletions(-) -- 1.7.5.1.300.gc565c -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
