mvebu: backport mainline patches from kernel 3.11

[openwrt.git] / target / linux / mvebu / patches-3.10 / 0003-ARM-mvebu-Add-support-for-NOR-flash-device-on-Armada.patch

diff --git a/target/linux/mvebu/patches-3.10/0003-ARM-mvebu-Add-support-for-NOR-flash-device-on-Armada.patch b/target/linux/mvebu/patches-3.10/0003-ARM-mvebu-Add-support-for-NOR-flash-device-on-Armada.patch
new file mode 100644 (file)
index 0000000..22f8ad0
--- /dev/null
+++ b/target/linux/mvebu/patches-3.10/0003-ARM-mvebu-Add-support-for-NOR-flash-device-on-Armada.patch
@@ -0,0 +1,71 @@
+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>;
++                              };
++                      };
+               };
+       };
+ };