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board: ge: bx50v3: Add PCIe reset to DT

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Add PCIe reset gpio to the Bx50v3 devicetree and get get rid of
CONFIG_PCIE_IMX_PERST_GPIO.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Sebastian Reichel 2021-08-04 18:22:54 +02:00 committed by Stefano Babic
parent 0ac226b3c6
commit 3bbc48e8f1
2 changed files with 10 additions and 1 deletions
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10
arch/arm/dts/imx6q-bx50v3-uboot.dtsi
View File

@ -47,3 +47,13 @@
phy-reset-duration = <1>;
phy-reset-post-delay = <0>;
};
/*
* PCIe reset is not done in the file shared with the kernel, since
* this GPIO also resets other peripherals (i.e. not just PCIe).
* These peripherals are being initialized by U-Boot and should not
* be reset by the kernel, so it may not reset PCIe via this GPIO.
*/
&pcie {
reset-gpio = <&gpio7 12 GPIO_ACTIVE_LOW>;
};

1
include/configs/ge_bx50v3.h
View File

@ -150,7 +150,6 @@
#define CONFIG_PCI_SCAN_SHOW
#define CONFIG_PCIE_IMX
#define CONFIG_PCIE_IMX_PERST_GPIO IMX_GPIO_NR(7, 12)
#define CONFIG_PCIE_IMX_POWER_GPIO IMX_GPIO_NR(1, 5)
#endif /* __GE_BX50V3_CONFIG_H */