Re: [PATCH 3/3] arm64: dts: ti: k3-j7200-som-p0: Add nodes for OSPI0
From: Vignesh Raghavendra <vigneshr@ti.com>
Date: 2021-03-02 08:39:35
Also in:
linux-arm-kernel, lkml
On 3/2/21 1:28 AM, Pratyush Yadav wrote:
+
+ mcu_fss0_ospi0_pins_default: mcu-fss0-ospi0-pins-default {
+ pinctrl-single,pins = <
+ J721E_WKUP_IOPAD(0x0000, PIN_OUTPUT, 0) /* MCU_OSPI0_CLK */
+ J721E_WKUP_IOPAD(0x002c, PIN_OUTPUT, 0) /* MCU_OSPI0_CSn0 */
+ J721E_WKUP_IOPAD(0x000c, PIN_INPUT, 0) /* MCU_OSPI0_D0 */
+ J721E_WKUP_IOPAD(0x0010, PIN_INPUT, 0) /* MCU_OSPI0_D1 */
+ J721E_WKUP_IOPAD(0x0014, PIN_INPUT, 0) /* MCU_OSPI0_D2 */
+ J721E_WKUP_IOPAD(0x0018, PIN_INPUT, 0) /* MCU_OSPI0_D3 */
+ J721E_WKUP_IOPAD(0x001c, PIN_INPUT, 0) /* MCU_OSPI0_D4 */
+ J721E_WKUP_IOPAD(0x0020, PIN_INPUT, 0) /* MCU_OSPI0_D5 */
+ J721E_WKUP_IOPAD(0x0024, PIN_INPUT, 0) /* MCU_OSPI0_D6 */
+ J721E_WKUP_IOPAD(0x0028, PIN_INPUT, 0) /* MCU_OSPI0_D7 */
+ J721E_WKUP_IOPAD(0x0008, PIN_INPUT_PULLDOWN, 0) /* MCU_OSPI0_DQS */
+ >;
+ };There is a pulldown resistor on the board right? So, internal pulldown is unnecessary and may even cause conflicts.