3c1f6e358d
Patches are generated using the "format-patch" command from the following location: *https://www.codeaurora.org/cgit/quic/kernel/galak-msm/log/?h=apq_ipq_base *rev=0771849495b4128cac2faf7d49c85c729fc48b20 Patches numbered 76/77/102/103 have already been integrated in 3.14.12, so they're not in this list. All these patches are either integrated are pending integration into kernel.org, therefore these patches should go away once the kernel gets upgraded to 3.16. Support is currently limited to AP148 board but can be extended to other platforms in the future. These changes do not cover ethernet connectivity. Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> SVN-Revision: 42334
111 lines
3.4 KiB
Diff
111 lines
3.4 KiB
Diff
From a8e8c90a3cc81c6a7a44ff7fb18ceb71978c9155 Mon Sep 17 00:00:00 2001
|
|
From: "Ivan T. Ivanov" <iivanov@mm-sol.com>
|
|
Date: Thu, 13 Feb 2014 18:21:23 +0200
|
|
Subject: [PATCH 066/182] spi: qup: Add device tree bindings information
|
|
|
|
The Qualcomm Universal Peripheral (QUP) core is an
|
|
AHB slave that provides a common data path (an output
|
|
FIFO and an input FIFO) for serial peripheral interface
|
|
(SPI) mini-core.
|
|
|
|
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
|
|
Signed-off-by: Mark Brown <broonie@linaro.org>
|
|
---
|
|
.../devicetree/bindings/spi/qcom,spi-qup.txt | 85 ++++++++++++++++++++
|
|
1 file changed, 85 insertions(+)
|
|
create mode 100644 Documentation/devicetree/bindings/spi/qcom,spi-qup.txt
|
|
|
|
diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt
|
|
new file mode 100644
|
|
index 0000000..b82a268
|
|
--- /dev/null
|
|
+++ b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt
|
|
@@ -0,0 +1,85 @@
|
|
+Qualcomm Universal Peripheral (QUP) Serial Peripheral Interface (SPI)
|
|
+
|
|
+The QUP core is an AHB slave that provides a common data path (an output FIFO
|
|
+and an input FIFO) for serial peripheral interface (SPI) mini-core.
|
|
+
|
|
+SPI in master mode supports up to 50MHz, up to four chip selects, programmable
|
|
+data path from 4 bits to 32 bits and numerous protocol variants.
|
|
+
|
|
+Required properties:
|
|
+- compatible: Should contain "qcom,spi-qup-v2.1.1" or "qcom,spi-qup-v2.2.1"
|
|
+- reg: Should contain base register location and length
|
|
+- interrupts: Interrupt number used by this controller
|
|
+
|
|
+- clocks: Should contain the core clock and the AHB clock.
|
|
+- clock-names: Should be "core" for the core clock and "iface" for the
|
|
+ AHB clock.
|
|
+
|
|
+- #address-cells: Number of cells required to define a chip select
|
|
+ address on the SPI bus. Should be set to 1.
|
|
+- #size-cells: Should be zero.
|
|
+
|
|
+Optional properties:
|
|
+- spi-max-frequency: Specifies maximum SPI clock frequency,
|
|
+ Units - Hz. Definition as per
|
|
+ Documentation/devicetree/bindings/spi/spi-bus.txt
|
|
+
|
|
+SPI slave nodes must be children of the SPI master node and can contain
|
|
+properties described in Documentation/devicetree/bindings/spi/spi-bus.txt
|
|
+
|
|
+Example:
|
|
+
|
|
+ spi_8: spi@f9964000 { /* BLSP2 QUP2 */
|
|
+
|
|
+ compatible = "qcom,spi-qup-v2";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <0>;
|
|
+ reg = <0xf9964000 0x1000>;
|
|
+ interrupts = <0 102 0>;
|
|
+ spi-max-frequency = <19200000>;
|
|
+
|
|
+ clocks = <&gcc GCC_BLSP2_QUP2_SPI_APPS_CLK>, <&gcc GCC_BLSP2_AHB_CLK>;
|
|
+ clock-names = "core", "iface";
|
|
+
|
|
+ pinctrl-names = "default";
|
|
+ pinctrl-0 = <&spi8_default>;
|
|
+
|
|
+ device@0 {
|
|
+ compatible = "arm,pl022-dummy";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <1>;
|
|
+ reg = <0>; /* Chip select 0 */
|
|
+ spi-max-frequency = <19200000>;
|
|
+ spi-cpol;
|
|
+ };
|
|
+
|
|
+ device@1 {
|
|
+ compatible = "arm,pl022-dummy";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <1>;
|
|
+ reg = <1>; /* Chip select 1 */
|
|
+ spi-max-frequency = <9600000>;
|
|
+ spi-cpha;
|
|
+ };
|
|
+
|
|
+ device@2 {
|
|
+ compatible = "arm,pl022-dummy";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <1>;
|
|
+ reg = <2>; /* Chip select 2 */
|
|
+ spi-max-frequency = <19200000>;
|
|
+ spi-cpol;
|
|
+ spi-cpha;
|
|
+ };
|
|
+
|
|
+ device@3 {
|
|
+ compatible = "arm,pl022-dummy";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <1>;
|
|
+ reg = <3>; /* Chip select 3 */
|
|
+ spi-max-frequency = <19200000>;
|
|
+ spi-cpol;
|
|
+ spi-cpha;
|
|
+ spi-cs-high;
|
|
+ };
|
|
+ };
|
|
--
|
|
1.7.10.4
|
|
|