From: Heiko Stuebner <heiko@sntech.de>
To: Brian Norris <briannorris@chromium.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>,
linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
Doug Anderson <dianders@chromium.org>,
Shawn Lin <shawn.lin@rock-chips.com>,
linux-arm-kernel@lists.infradead.org,
Brian Norris <computersforpeace@gmail.com>
Subject: Re: [PATCH 1/4] phy: rockchip-emmc: give DLL some extra time to be ready
Date: Fri, 17 Jun 2016 01:35:28 +0200 [thread overview]
Message-ID: <2019301.c5hsQIZXPF@phil> (raw)
In-Reply-To: <1463092986-61777-1-git-send-email-briannorris@chromium.org>
Am Donnerstag, 12. Mai 2016, 15:43:03 schrieb Brian Norris:
> From: Shawn Lin <shawn.lin@rock-chips.com>
>
> According to the databook, 10.2us is the max time for dll to be ready to
> work. However in testing, some chips need 20us for dll to be ready. This
> patch adds some extra margin for dllrdy to be ready, fixing our
> -ETIMEDOUT issues.
>
> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
> Signed-off-by: Brian Norris <briannorris@chromium.org>
haven't looked to deep into the emmc-phy block, but on my rk3399-evb board
the emmc still runs nicely with this patch, so
Tested-by: Heiko Stuebner <heiko@sntech.de>
WARNING: multiple messages have this Message-ID (diff)
From: heiko@sntech.de (Heiko Stuebner)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/4] phy: rockchip-emmc: give DLL some extra time to be ready
Date: Fri, 17 Jun 2016 01:35:28 +0200 [thread overview]
Message-ID: <2019301.c5hsQIZXPF@phil> (raw)
In-Reply-To: <1463092986-61777-1-git-send-email-briannorris@chromium.org>
Am Donnerstag, 12. Mai 2016, 15:43:03 schrieb Brian Norris:
> From: Shawn Lin <shawn.lin@rock-chips.com>
>
> According to the databook, 10.2us is the max time for dll to be ready to
> work. However in testing, some chips need 20us for dll to be ready. This
> patch adds some extra margin for dllrdy to be ready, fixing our
> -ETIMEDOUT issues.
>
> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
> Signed-off-by: Brian Norris <briannorris@chromium.org>
haven't looked to deep into the emmc-phy block, but on my rk3399-evb board
the emmc still runs nicely with this patch, so
Tested-by: Heiko Stuebner <heiko@sntech.de>
next prev parent reply other threads:[~2016-06-16 23:35 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-12 22:43 [PATCH 1/4] phy: rockchip-emmc: give DLL some extra time to be ready Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-12 22:43 ` [PATCH 3/4] phy: rockchip-emmc: configure default output tap delay Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-13 22:25 ` Doug Anderson
2016-05-13 22:25 ` Doug Anderson
2016-05-16 4:15 ` Shawn Lin
2016-05-16 4:15 ` Shawn Lin
[not found] ` <52567d92-d1d3-f089-65c2-a30f3a00386b-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-05-16 15:12 ` Doug Anderson
2016-05-16 15:12 ` Doug Anderson
2016-05-16 15:12 ` Doug Anderson
2016-06-16 23:36 ` Heiko Stuebner
2016-06-16 23:36 ` Heiko Stuebner
[not found] ` <1463092986-61777-3-git-send-email-briannorris-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2016-06-20 13:11 ` Kishon Vijay Abraham I
2016-06-20 13:11 ` Kishon Vijay Abraham I
2016-06-20 13:11 ` Kishon Vijay Abraham I
2016-05-12 22:43 ` [PATCH 4/4] phy: rockchip-emmc: reindent the register definitions Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-13 22:26 ` Doug Anderson
2016-05-13 22:26 ` Doug Anderson
2016-06-16 23:37 ` Heiko Stuebner
2016-06-16 23:37 ` Heiko Stuebner
[not found] ` <1463092986-61777-4-git-send-email-briannorris-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2016-06-20 13:12 ` Kishon Vijay Abraham I
2016-06-20 13:12 ` Kishon Vijay Abraham I
2016-06-20 13:12 ` Kishon Vijay Abraham I
2016-05-13 22:01 ` [PATCH 1/4] phy: rockchip-emmc: give DLL some extra time to be ready Doug Anderson
2016-05-13 22:01 ` Doug Anderson
2016-06-16 23:35 ` Heiko Stuebner [this message]
2016-06-16 23:35 ` Heiko Stuebner
[not found] ` <1463092986-61777-1-git-send-email-briannorris-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2016-05-12 22:43 ` [PATCH 2/4] phy: rockchip-emmc: configure frequency range and drive impedance Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-12 22:43 ` Brian Norris
2016-05-13 1:02 ` Shawn Lin
2016-05-13 1:02 ` Shawn Lin
2016-05-13 18:46 ` Doug Anderson
2016-05-13 18:46 ` Doug Anderson
2016-05-13 21:04 ` Brian Norris
2016-05-13 21:04 ` Brian Norris
2016-05-24 4:51 ` Doug Anderson
2016-05-24 4:51 ` Doug Anderson
2016-05-13 21:09 ` [PATCH v2 " Brian Norris
2016-05-13 21:09 ` Brian Norris
2016-05-13 22:04 ` Doug Anderson
2016-05-13 22:04 ` Doug Anderson
2016-06-16 23:36 ` Heiko Stuebner
2016-06-16 23:36 ` Heiko Stuebner
2016-06-20 13:11 ` [PATCH " Kishon Vijay Abraham I
2016-06-20 13:11 ` Kishon Vijay Abraham I
2016-06-20 13:11 ` Kishon Vijay Abraham I
2016-06-20 13:11 ` [PATCH 1/4] phy: rockchip-emmc: give DLL some extra time to be ready Kishon Vijay Abraham I
2016-06-20 13:11 ` Kishon Vijay Abraham I
2016-06-20 13:11 ` Kishon Vijay Abraham I
2016-06-20 16:19 ` Brian Norris
2016-06-20 16:19 ` Brian Norris
2016-06-20 16:19 ` Brian Norris
2016-06-20 16:25 ` Doug Anderson
2016-06-20 16:25 ` Doug Anderson
2016-06-20 16:50 ` Brian Norris
2016-06-20 16:50 ` Brian Norris
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