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| author | Matthias Schiffer <matthias.schiffer@ew.tq-group.com> | 2021-09-22 15:00:53 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2021-10-05 07:24:05 +0200 |
| commit | 61b2f7b15839f5d6b4838a44b6faaff9957e98e7 (patch) | |
| tree | 86300d021d5657a1d92c25f539eb0fc779e53212 | |
| parent | ARM: dts: imx7-tqma7/mba7: correct spelling of "TQ-Systems" (diff) | |
| download | linux-61b2f7b15839f5d6b4838a44b6faaff9957e98e7.tar.xz linux-61b2f7b15839f5d6b4838a44b6faaff9957e98e7.zip | |
ARM: dts: imx7-tqma7: add SPI-NOR flash
The SPI-NOR flash on the SoM was missing from the device tree.
The TQMa7 as a designated QSPI_RESET# pin, however depending on the
hardware configuration the pin may be unconnected, or be used for a
different purpose. With this in mind, we mux the pin as a pullup and
define an input hog for it, but keep it a separate pin group, so that it
is easy for dependent Device Trees to modify the configuration.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm/boot/dts/imx7-tqma7.dtsi | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx7-tqma7.dtsi b/arch/arm/boot/dts/imx7-tqma7.dtsi index 065e1668e280..fe42b0a46831 100644 --- a/arch/arm/boot/dts/imx7-tqma7.dtsi +++ b/arch/arm/boot/dts/imx7-tqma7.dtsi @@ -19,6 +19,16 @@ cpu-supply = <&sw1a_reg>; }; +&gpio2 { + /* Configured as pullup by QSPI pin group */ + qspi-reset-hog { + gpio-hog; + gpios = <4 GPIO_ACTIVE_LOW>; + input; + line-name = "qspi-reset"; + }; +}; + &i2c1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c1>; @@ -160,6 +170,25 @@ >; }; + pinctrl_qspi: qspigrp { + fsl,pins = < + MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0 0x5A + MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1 0x5A + MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2 0x5A + MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3 0x5A + MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK 0x11 + MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B 0x54 + MX7D_PAD_EPDC_DATA07__QSPI_A_SS1_B 0x54 + >; + }; + + pinctrl_qspi_reset: qspi_resetgrp { + fsl,pins = < + /* #QSPI_RESET */ + MX7D_PAD_EPDC_DATA04__GPIO2_IO4 0x52 + >; + }; + pinctrl_usdhc3: usdhc3grp { fsl,pins = < MX7D_PAD_SD3_CMD__SD3_CMD 0x59 @@ -217,6 +246,20 @@ }; }; +&qspi { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_qspi &pinctrl_qspi_reset>; + status = "okay"; + + flash0: flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <29000000>; + spi-rx-bus-width = <4>; + spi-tx-bus-width = <4>; + }; +}; + &sdma { status = "okay"; }; |