ARM: dts: Update Nanobone dts file to add external FRAM chip

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>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 30 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/am335x-nano.dts b/arch/arm/boot/dts/am335x-nano.dts
index 483d585c8908..807494bc722b 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 {