u-boot/arch/arm/dts/imx7d-sdb-qspi.dts
Ye Li 3b82335015 imx: imx7d-sdb: Add DM QSPI support
On iMX7D SabreSD board, the QSPI has pins conflict with EPDC (default).
To use QSPI, users have to rework the board (de-populate R388-R391, R396-R399
populate R392-R395, R299, R300). So we add new DTS file and new defconfig
dedicated for QSPI.

Other changes to support the DM QSPI:
 - Add QSPI node and alias spi0.
 - Modify spi4 (spi-gpio) node and add alias spi5 for it to avoid req
   conflict
 - Add EPDC node in imx7d.dtsi and disable it in imx7d-sdb-qspi.dts to
   align with kernel and also present the conflict.
 - Add -u-boot.dtsi to modify compatible string of mx25l51245g@0 to
   "spi-flash"
 - Remove iomux settings of qspi in board codes which is not needed
   for DM driver.

Signed-off-by: Ye Li <ye.li@nxp.com>
2018-09-04 08:47:23 +02:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Freescale Semiconductor, Inc.
* Copyright 2018 NXP
*/
#include "imx7d-sdb.dts"
/* disable epdc, conflict with qspi */
&epdc {
status = "disabled";
};
&iomuxc {
qspi1 {
pinctrl_qspi1_1: qspi1grp_1 {
fsl,pins = <
MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0 0x51
MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1 0x51
MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2 0x51
MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3 0x51
MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK 0x51
MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B 0x51
>;
};
};
};
&qspi1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_qspi1_1>;
status = "okay";
ddrsmp=<0>;
flash0: mx25l51245g@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "macronix,mx25l51245g";
spi-max-frequency = <29000000>;
/* take off one dummy cycle */
spi-nor,ddr-quad-read-dummy = <5>;
reg = <0>;
};
};