These add device tree entry for qspi controller driver on dra7-evm.
Signed-off-by: Sourav Poddar <sourav.pod...@ti.com>
---
Done and tested on top of
linux-next + benoit for_15 + tony crossbar branch +
crossbar dts patches.
v2->v3:
This was added as part of the following series,
http://www.spinics.net/lists/linux-omap/msg101024.html
Few patches of the above series are picked.
Sending this dts patch with updates[1] to enable spi mode
operations with flash device.
[1]:
- Enables only SPI mode operations
- Add partition table
- Add crossbar interrupt value.
arch/arm/boot/dts/dra7-evm.dts | 80 ++++++++++++++++++++++++++++++++++++++++
arch/arm/boot/dts/dra7.dtsi | 13 +++++++
2 files changed, 93 insertions(+)
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 5babba0..986fcf3 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -93,6 +93,21 @@
0x24c (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_txd */
>;
};
+
+ qspi1_pins: pinmux_qspi1_pins {
+ pinctrl-single,pins = <
+ 0x4c (PIN_INPUT | MUX_MODE1) /* gpmc_a3.qspi1_cs2 */
+ 0x50 (PIN_INPUT | MUX_MODE1) /* gpmc_a4.qspi1_cs3 */
+ 0x74 (PIN_INPUT | MUX_MODE1) /* gpmc_a13.qspi1_rtclk */
+ 0x78 (PIN_INPUT | MUX_MODE1) /* gpmc_a14.qspi1_d3 */
+ 0x7c (PIN_INPUT | MUX_MODE1) /* gpmc_a15.qspi1_d2 */
+ 0x80 (PIN_INPUT | MUX_MODE1) /* gpmc_a16.qspi1_d1 */
+ 0x84 (PIN_INPUT | MUX_MODE1) /* gpmc_a17.qspi1_d0 */
+ 0x88 (PIN_INPUT | MUX_MODE1) /* qpmc_a18.qspi1_sclk */
+ 0xb8 (PIN_INPUT_PULLUP | MUX_MODE1) /*
gpmc_cs2.qspi1_cs0 */
+ 0xbc (PIN_INPUT_PULLUP | MUX_MODE1) /*
gpmc_cs3.qspi1_cs1 */
+ >;
+ };
};
&i2c1 {
@@ -273,3 +288,68 @@
&cpu0 {
cpu0-supply = <&smps123_reg>;
};
+
+&qspi {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&qspi1_pins>;
+
+ spi-max-frequency = <48000000>;
+ m25p80@0 {
+ compatible = "s25fl256s1";
+ spi-max-frequency = <48000000>;
+ reg = <0>;
+ spi-tx-bus-width = <1>;
+ spi-rx-bus-width = <4>;
+ spi-cpol;
+ spi-cpha;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* MTD partition table.
+ * The ROM checks the first four physical blocks
+ * for a valid file to boot and the flash here is
+ * 64KiB block size.
+ */
+ partition@0 {
+ label = "QSPI.SPL";
+ reg = <0x00000000 0x000010000>;
+ };
+ partition@1 {
+ label = "QSPI.SPL.backup1";
+ reg = <0x00010000 0x00010000>;
+ };
+ partition@2 {
+ label = "QSPI.SPL.backup2";
+ reg = <0x00020000 0x00010000>;
+ };
+ partition@3 {
+ label = "QSPI.SPL.backup3";
+ reg = <0x00030000 0x00010000>;
+ };
+ partition@4 {
+ label = "QSPI.u-boot";
+ reg = <0x00040000 0x00180000>;
+ };
+ partition@5 {
+ label = "QSPI.u-boot-spl-os";
+ reg = <0x001c0000 0x00010000>;
+ };
+ partition@6 {
+ label = "QSPI.u-boot-env";
+ reg = <0x001d0000 0x00010000>;
+ };
+ partition@7 {
+ label = "QSPI.u-boot-env.backup1";
+ reg = <0x001e0000 0x0010000>;
+ };
+ partition@8 {
+ label = "QSPI.kernel";
+ reg = <0x001f0000 0x00500000>;
+ };
+ partition@9 {
+ label = "QSPI.file-system";
+ reg = <0x006f0000 0x01910000>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 5d2ff52..a7a2fa8 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -645,6 +645,19 @@
dma-names = "tx0", "rx0";
status = "disabled";
};
+
+ qspi: qspi@4b300000 {
+ compatible = "ti,dra7xxx-qspi";
+ reg = <0x4b300000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ti,hwmods = "qspi";
+ clocks = <&qspi_gfclk_div>;
+ clock-names = "fck";
+ num-cs = <4>;
+ interrupts = <0 343 0x4>;
+ status = "disabled";
+ };
};
};
--
1.7.9.5
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