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authorMark Jackson <mpfj-list@newflow.co.uk>2016-12-15 10:52:13 +0000
committerTony Lindgren <tony@atomide.com>2017-01-05 09:08:11 -0800
commite2ae7efefb32324bb95fb4485269bff99ca603ed (patch)
tree1871489b38e2e551b0318e14dd8e86dd157c99b6 /arch/arm/boot/dts/am335x-nano.dts
parent1a8eca7fa8cad9e4da8a772b7da93584bbda910e (diff)
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>
Diffstat (limited to 'arch/arm/boot/dts/am335x-nano.dts')
-rw-r--r--arch/arm/boot/dts/am335x-nano.dts31
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 {