You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.1 KiB
Diff
72 lines
2.1 KiB
Diff
From 74cd8c09ae416261d7595021fc8062836dc750a2 Mon Sep 17 00:00:00 2001
|
|
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
|
|
Date: Fri, 17 May 2013 08:09:58 -0300
|
|
Subject: [PATCH 003/203] ARM: mvebu: Add support for NOR flash device on
|
|
Armada XP-DB board
|
|
|
|
The Armada XP Development Board (DB-78460-BP) has a NOR flash device
|
|
connected to the Device Bus. This commit adds the device tree node
|
|
to support this device.
|
|
|
|
This SoC supports a flexible and dynamic decoding window allocation
|
|
scheme; but since this feature is still not implemented we need
|
|
to specify the window base address in the device tree node itself.
|
|
|
|
This base address has been selected in a completely arbitrary fashion.
|
|
|
|
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
|
|
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
|
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
|
|
---
|
|
arch/arm/boot/dts/armada-xp-db.dts | 32 ++++++++++++++++++++++++++++++++
|
|
1 file changed, 32 insertions(+)
|
|
|
|
--- a/arch/arm/boot/dts/armada-xp-db.dts
|
|
+++ b/arch/arm/boot/dts/armada-xp-db.dts
|
|
@@ -30,6 +30,9 @@
|
|
};
|
|
|
|
soc {
|
|
+ ranges = <0 0 0xd0000000 0x100000 /* Internal registers 1MiB */
|
|
+ 0xf0000000 0 0xf0000000 0x1000000>; /* Device Bus, NOR 16MiB */
|
|
+
|
|
internal-regs {
|
|
serial@12000 {
|
|
clock-frequency = <250000000>;
|
|
@@ -156,6 +159,35 @@
|
|
status = "okay";
|
|
};
|
|
};
|
|
+
|
|
+ devbus-bootcs@10400 {
|
|
+ status = "okay";
|
|
+ ranges = <0 0xf0000000 0x1000000>;
|
|
+
|
|
+ /* Device Bus parameters are required */
|
|
+
|
|
+ /* Read parameters */
|
|
+ devbus,bus-width = <8>;
|
|
+ devbus,turn-off-ps = <60000>;
|
|
+ devbus,badr-skew-ps = <0>;
|
|
+ devbus,acc-first-ps = <124000>;
|
|
+ devbus,acc-next-ps = <248000>;
|
|
+ devbus,rd-setup-ps = <0>;
|
|
+ devbus,rd-hold-ps = <0>;
|
|
+
|
|
+ /* Write parameters */
|
|
+ devbus,sync-enable = <0>;
|
|
+ devbus,wr-high-ps = <60000>;
|
|
+ devbus,wr-low-ps = <60000>;
|
|
+ devbus,ale-wr-ps = <60000>;
|
|
+
|
|
+ /* NOR 16 MiB */
|
|
+ nor@0 {
|
|
+ compatible = "cfi-flash";
|
|
+ reg = <0 0x1000000>;
|
|
+ bank-width = <2>;
|
|
+ };
|
|
+ };
|
|
};
|
|
};
|
|
};
|