From e2ae7efefb32324bb95fb4485269bff99ca603ed Mon Sep 17 00:00:00 2001 From: Mark Jackson Date: Thu, 15 Dec 2016 10:52:13 +0000 Subject: [PATCH] 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 Signed-off-by: Tony Lindgren --- 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 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 { -- 2.11.0