* [PATCH] Update Nanobone dts file to add external FRAM chip
@ 2016-12-15 10:52 Mark Jackson
2017-01-04 10:55 ` Mark Jackson
0 siblings, 1 reply; 3+ messages in thread
From: Mark Jackson @ 2016-12-15 10:52 UTC (permalink / raw)
To: Tony Lindgren; +Cc: linux-omap, lkml
>From v4.2+ the GPMC code has been changed to reset all the bootloader
GPMC settings when the kernel starts.
As such, this DTS file now needs the external FRAM defined.
Signed-off-by: Mark Jackson <mpfj@newflow.co.uk>
---
arch/arm/boot/dts/am335x-nano.dts | 31 ++++++++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/am335x-nano.dts b/arch/arm/boot/dts/am335x-nano.dts
index 483d585..807494b 100644
--- a/arch/arm/boot/dts/am335x-nano.dts
+++ b/arch/arm/boot/dts/am335x-nano.dts
@@ -249,7 +249,8 @@
#address-cells = <2>;
#size-cells = <1>;
- ranges = <0 0 0x08000000 0x08000000>; /* CS0: NOR 128M */
+ ranges = <0 0 0x08000000 0x08000000>, /* CS0: NOR 128M */
+ <1 0 0x1c000000 0x01000000>; /* CS1: FRAM 16M */
nor@0,0 {
reg = <0 0x00000000 0x08000000>;
@@ -342,6 +343,34 @@
reg = <0x04000000 0x04000000>; /* 64MB */
};
};
+
+ fram@1,0 {
+ reg = <1 0x00000000 0x01000000>;
+ bank-width = <2>;
+
+ gpmc,mux-add-data = <2>;
+
+ gpmc,sync-clk-ps = <0>;
+ gpmc,cs-on-ns = <0>;
+ gpmc,cs-rd-off-ns = <160>;
+ gpmc,cs-wr-off-ns = <160>;
+ gpmc,adv-on-ns = <10>;
+ gpmc,adv-rd-off-ns = <20>;
+ gpmc,adv-wr-off-ns = <20>;
+ gpmc,oe-on-ns = <30>;
+ gpmc,oe-off-ns = <150>;
+ gpmc,we-on-ns = <30>;
+ gpmc,we-off-ns = <150>;
+ gpmc,rd-cycle-ns = <160>;
+ gpmc,wr-cycle-ns = <160>;
+ gpmc,access-ns = <130>;
+ gpmc,page-burst-access-ns = <10>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
+ gpmc,cycle2cycle-delay-ns = <10>;
+ gpmc,wr-data-mux-bus-ns = <30>;
+ gpmc,wr-access-ns = <0>;
+ };
};
&mac {
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] Update Nanobone dts file to add external FRAM chip
2016-12-15 10:52 [PATCH] Update Nanobone dts file to add external FRAM chip Mark Jackson
@ 2017-01-04 10:55 ` Mark Jackson
2017-01-05 17:09 ` Tony Lindgren
0 siblings, 1 reply; 3+ messages in thread
From: Mark Jackson @ 2017-01-04 10:55 UTC (permalink / raw)
To: Tony Lindgren; +Cc: linux-omap, lkml
On 15/12/16 10:52, Mark Jackson wrote:
>>From v4.2+ the GPMC code has been changed to reset all the bootloader
> GPMC settings when the kernel starts.
>
> As such, this DTS file now needs the external FRAM defined.
>
> Signed-off-by: Mark Jackson <mpfj@newflow.co.uk>
<snip>
Tony, any update on this patch ?
Cheers
Mark J
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Update Nanobone dts file to add external FRAM chip
2017-01-04 10:55 ` Mark Jackson
@ 2017-01-05 17:09 ` Tony Lindgren
0 siblings, 0 replies; 3+ messages in thread
From: Tony Lindgren @ 2017-01-05 17:09 UTC (permalink / raw)
To: Mark Jackson; +Cc: linux-omap, lkml
* Mark Jackson <mpfj-list@newflow.co.uk> [170104 02:56]:
> On 15/12/16 10:52, Mark Jackson wrote:
> >>From v4.2+ the GPMC code has been changed to reset all the bootloader
> > GPMC settings when the kernel starts.
> >
> > As such, this DTS file now needs the external FRAM defined.
> >
> > Signed-off-by: Mark Jackson <mpfj@newflow.co.uk>
>
> <snip>
>
> Tony, any update on this patch ?
Applying into omap-for-v4.11/dt thanks. I usually don't get around to
applying new stuff until around -rc2 or after the fixes are out of
the way. And then I usually don't apply much anything except fixes
after -rc6 FYI.
Regards,
Tony
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-01-05 17:10 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-12-15 10:52 [PATCH] Update Nanobone dts file to add external FRAM chip Mark Jackson
2017-01-04 10:55 ` Mark Jackson
2017-01-05 17:09 ` Tony Lindgren
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).