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authorVignesh R <vigneshr@ti.com>2015-12-11 09:39:59 +0530
committerTony Lindgren <tony@atomide.com>2015-12-18 08:40:47 -0800
commit1929d0b5a821ed5bec3d1e683e63851fc51d05ee (patch)
treed4063616c64d3807b0cd79de754dbd8b3102478b /Documentation/devicetree/bindings/spi
parentd01d8799308f53f2a350ec48ae3a98f4b803dac1 (diff)
downloadblackbird-op-linux-1929d0b5a821ed5bec3d1e683e63851fc51d05ee.tar.gz
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ARM: dts: DRA7: add entry for qspi mmap region
Add qspi memory mapped region entries for DRA7xx based SoCs. Also, update the binding documents for the controller to document this change. Signed-off-by: Vignesh R <vigneshr@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'Documentation/devicetree/bindings/spi')
-rw-r--r--Documentation/devicetree/bindings/spi/ti_qspi.txt17
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt
index 601a360531a5..809c3f334316 100644
--- a/Documentation/devicetree/bindings/spi/ti_qspi.txt
+++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt
@@ -15,6 +15,10 @@ Recommended properties:
- spi-max-frequency: Definition as per
Documentation/devicetree/bindings/spi/spi-bus.txt
+Optional properties:
+- syscon-chipselects: Handle to system control region contains QSPI
+ chipselect register and offset of that register.
+
Example:
qspi: qspi@4b300000 {
@@ -26,3 +30,16 @@ qspi: qspi@4b300000 {
spi-max-frequency = <25000000>;
ti,hwmods = "qspi";
};
+
+For dra7xx:
+qspi: qspi@4b300000 {
+ compatible = "ti,dra7xxx-qspi";
+ reg = <0x4b300000 0x100>,
+ <0x5c000000 0x4000000>,
+ reg-names = "qspi_base", "qspi_mmap";
+ syscon-chipselects = <&scm_conf 0x558>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spi-max-frequency = <48000000>;
+ ti,hwmods = "qspi";
+};
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