linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 04/10] ARM: dts: Add GPMC timings for omap zoom serial port
Date: Wed, 29 Oct 2014 17:29:02 -0700	[thread overview]
Message-ID: <1414628948-30702-5-git-send-email-tony@atomide.com> (raw)
In-Reply-To: <1414628948-30702-1-git-send-email-tony@atomide.com>

The four port serial port on the zoom debug board uses a TL16CP754C
with a single interrupt and GPMC chip select. The serial ports each
use a 8 bytes for IO registers, and are 256 bytes apart on the GPMC
line.

Let's add timings for all four ports so we can remove the GPMC
workarounds for using bootloader timings.

Not caused by this patch, but looks like u-boot only properly
initializes the fifo on the first serial port. Currently the other
ports produce garbage at least with my version of u-boot. I suspect
that TL16CP754C needs non-standard initialization added to 8250
driver to properly fix this issue.

Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap-zoom-common.dtsi | 58 +++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/arch/arm/boot/dts/omap-zoom-common.dtsi b/arch/arm/boot/dts/omap-zoom-common.dtsi
index 2889b50..46ef3e4 100644
--- a/arch/arm/boot/dts/omap-zoom-common.dtsi
+++ b/arch/arm/boot/dts/omap-zoom-common.dtsi
@@ -23,6 +23,64 @@
 		interrupts = <6 IRQ_TYPE_EDGE_RISING>;	/* gpio102 */
 		clock-frequency = <1843200>;
 		current-speed = <115200>;
+		gpmc,mux-add-data = <0>;
+		gpmc,device-width = <1>;
+		gpmc,wait-pin = <1>;
+		gpmc,cycle2cycle-samecsen = <1>;
+		gpmc,cycle2cycle-diffcsen = <1>;
+		gpmc,cs-on-ns = <5>;
+		gpmc,cs-rd-off-ns = <155>;
+		gpmc,cs-wr-off-ns = <155>;
+		gpmc,adv-on-ns = <15>;
+		gpmc,adv-rd-off-ns = <40>;
+		gpmc,adv-wr-off-ns = <40>;
+		gpmc,oe-on-ns = <45>;
+		gpmc,oe-off-ns = <145>;
+		gpmc,we-on-ns = <45>;
+		gpmc,we-off-ns = <145>;
+		gpmc,rd-cycle-ns = <155>;
+		gpmc,wr-cycle-ns = <155>;
+		gpmc,access-ns = <145>;
+		gpmc,page-burst-access-ns = <20>;
+		gpmc,bus-turnaround-ns = <20>;
+		gpmc,cycle2cycle-delay-ns = <20>;
+		gpmc,wait-monitoring-ns = <0>;
+		gpmc,clk-activation-ns = <0>;
+		gpmc,wr-data-mux-bus-ns = <45>;
+		gpmc,wr-access-ns = <145>;
+	};
+	uart at 3,1 {
+		compatible = "ns16550a";
+		reg = <3 0x100 8>;	/* CS3, offset 0x100, IO size 8 */
+		bank-width = <2>;
+		reg-shift = <1>;
+		reg-io-width = <1>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <6 IRQ_TYPE_EDGE_RISING>;	/* gpio102 */
+		clock-frequency = <1843200>;
+		current-speed = <115200>;
+	};
+	uart at 3,2 {
+		compatible = "ns16550a";
+		reg = <3 0x200 8>;	/* CS3, offset 0x200, IO size 8 */
+		bank-width = <2>;
+		reg-shift = <1>;
+		reg-io-width = <1>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <6 IRQ_TYPE_EDGE_RISING>;	/* gpio102 */
+		clock-frequency = <1843200>;
+		current-speed = <115200>;
+	};
+	uart at 3,3 {
+		compatible = "ns16550a";
+		reg = <3 0x300 8>;	/* CS3, offset 0x300, IO size 8 */
+		bank-width = <2>;
+		reg-shift = <1>;
+		reg-io-width = <1>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <6 IRQ_TYPE_EDGE_RISING>;	/* gpio102 */
+		clock-frequency = <1843200>;
+		current-speed = <115200>;
 	};
 
 	ethernet at gpmc {
-- 
2.1.1

  parent reply	other threads:[~2014-10-30  0:29 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-30  0:28 [PATCH 00/10] omap gpmc and board clean-up for v3.19 merge window Tony Lindgren
2014-10-30  0:28 ` [PATCH 01/10] ARM: dts: Fix bootloader version dependencies by muxing n900 smc91x pins Tony Lindgren
2014-10-30 11:59   ` Roger Quadros
2014-10-30 15:49     ` Tony Lindgren
2014-11-03  9:30       ` Roger Quadros
2014-10-30  0:29 ` [PATCH 02/10] ARM: dts: Fix wrong GPMC size mappings for omaps Tony Lindgren
2014-10-30 12:05   ` Roger Quadros
2014-10-30  0:29 ` [PATCH 03/10] ARM: dts: Add smc91x GPMC configuration for 2430sdp Tony Lindgren
2014-10-30  0:29 ` Tony Lindgren [this message]
2014-10-30 12:21   ` [PATCH 04/10] ARM: dts: Add GPMC timings for omap zoom serial port Roger Quadros
2014-10-30  0:29 ` [PATCH 05/10] ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select Tony Lindgren
2014-10-30 12:26   ` Roger Quadros
2014-10-30  0:29 ` [PATCH 06/10] ARM: OMAP2+: Show bootloader GPMC timings to allow configuring the .dts file Tony Lindgren
2014-10-30 14:19   ` Roger Quadros
2014-10-30 14:45     ` Tony Lindgren
2014-10-30 15:04       ` Roger Quadros
2014-10-30 16:30         ` Tony Lindgren
2014-10-31  9:24           ` Roger Quadros
2014-11-04 13:40           ` Roger Quadros
2014-11-04 15:49             ` Tony Lindgren
2014-10-30 14:26   ` Roger Quadros
2014-10-30  0:29 ` [PATCH 07/10] ARM: OMAP2+: Require proper GPMC timings for devices Tony Lindgren
2014-10-30 14:27   ` Roger Quadros
2014-10-30  0:29 ` [PATCH 08/10] ARM: OMAP2+: Drop legacy code for gpmc-smc91x.c Tony Lindgren
2014-10-30 14:28   ` Roger Quadros
2014-10-30  0:29 ` [PATCH 09/10] ARM: OMAP2+: Drop board file for ti8168evm Tony Lindgren
2014-10-30  0:29 ` [PATCH 10/10] ARM: omap2plus: Drop board file for 3430sdp Tony Lindgren

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1414628948-30702-5-git-send-email-tony@atomide.com \
    --to=tony@atomide.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).