arch/arm/boot/dts/ti/omap/dra74x-mmc-iodelay.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/dra74x-mmc-iodelay.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/dra74x-mmc-iodelay.dtsi
Extension
.dtsi
Size
35597 bytes
Lines
640
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * MMC IOdelay values for TI's DRA74x, DRA75x and AM572x SoCs.
 *
 * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
 */

/*
 * Rules for modifying this file:
 * a) Update of this file should typically correspond to a datamanual revision.
 *    Datamanual revision that was used should be updated in comment below.
 *    If there is no update to datamanual, do not update the values. If you
 *    need to use values different from that recommended by the datamanual
 *    for your design, then you should consider adding values to the device-
 *    -tree file for your board directly.
 * b) We keep the mode names as close to the datamanual as possible. So
 *    if the manual calls a mode, DDR50, or DDR or DDR 1.8v or DDR 3.3v,
 *    we follow that in code too.
 * c) If the values change between multiple revisions of silicon, we add
 *    a revision tag to both the new and old entry. Use 'rev11' for PG 1.1,
 *    'rev20' for PG 2.0 and so on.
 * d) The node name and node label should be the exact same string. This is
 *    to curb naming creativity and achieve consistency.
 *
 * Datamanual Revisions:
 *
 * AM572x Silicon Revision 2.0: SPRS953F, Revised May 2019
 * AM572x Silicon Revision 1.1: SPRS915R, Revised November 2016
 *
 */

&dra7_pmx_core {
	mmc1_pins_default: mmc1-default-pins {
		pinctrl-single,pins = <
			DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
			DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
			DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
			DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
			DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
			DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
		>;
	};

	mmc1_pins_sdr12: mmc1-sdr12-pins {
		pinctrl-single,pins = <
			DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_clk.clk */
			DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_cmd.cmd */
			DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat0.dat0 */
			DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat1.dat1 */
			DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat2.dat2 */
			DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat3.dat3 */
		>;
	};

	mmc1_pins_hs: mmc1-hs-pins {
		pinctrl-single,pins = <
			DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_clk.clk */
			DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_cmd.cmd */
			DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat0.dat0 */
			DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat1.dat1 */
			DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat2.dat2 */
			DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat3.dat3 */
		>;
	};

	mmc1_pins_sdr25: mmc1-sdr25-pins {
		pinctrl-single,pins = <
			DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0)	/* mmc1_clk.clk */
			DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0)	/* mmc1_cmd.cmd */
			DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0)	/* mmc1_dat0.dat0 */

Annotation

Implementation Notes