u-boot-brain/arch/arm/dts/k3-j7200-common-proc-board.dts
Suman Anna 3f7e032f70 arm: dts: k3-j7200-main: Add MAIN domain R5F cluster nodes
The J7200 SoCs have 2 dual-core Arm Cortex-R5F processor (R5FSS)
subsystems/clusters. One R5F cluster is present within the MCU
domain (MCU_R5FSS0), and the other one is present within the MAIN
domain (MAIN_R5FSS0). Each of these can be configured at boot time
to be either run in a LockStep mode or in an Asymmetric Multi
Processing (AMP) fashion in Split-mode. These subsystems have 64 KB
each Tightly-Coupled Memory (TCM) internal memories for each core
split between two banks - ATCM and BTCM (further interleaved into
two banks). The TCMs of both Cores are combined in LockStep-mode
to provide a larger 128 KB of memory.

Add the DT node for the MAIN domain R5F cluster/subsystem, the two
R5F cores are added as child nodes to the main cluster/subsystem node.
The cluster is configured to run in Split-mode by default, with the
ATCMs enabled to allow the R5 cores to execute code from DDR with
boot-strapping code from ATCM. The inter-processor communication
between the main A72 cores and these processors is achieved through
shared memory and Mailboxes.

Signed-off-by: Suman Anna <s-anna@ti.com>
2020-09-15 18:51:53 +05:30

203 lines
4.2 KiB
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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/
*/
/dts-v1/;
#include <dt-bindings/net/ti-dp83867.h>
#include "k3-j7200-som-p0.dtsi"
/ {
chosen {
stdout-path = "serial2:115200n8";
bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
};
aliases {
remoteproc0 = &mcu_r5fss0_core0;
remoteproc1 = &mcu_r5fss0_core1;
remoteproc2 = &main_r5fss0_core0;
remoteproc3 = &main_r5fss0_core1;
};
};
&wkup_pmx0 {
wkup_i2c0_pins_default: wkup-i2c0-pins-default {
pinctrl-single,pins = <
J721E_WKUP_IOPAD(0x100, PIN_INPUT_PULLUP, 0) /* (F20) WKUP_I2C0_SCL */
J721E_WKUP_IOPAD(0x104, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */
>;
};
wkup_gpio_pins_default: wkup-gpio-pins-default {
pinctrl-single,pins = <
J721E_WKUP_IOPAD(0xd8, PIN_INPUT, 7) /* (C14) WKUP_GPIO0_6 */
>;
};
mcu_cpsw_pins_default: mcu_cpsw_pins_default {
pinctrl-single,pins = <
J721E_WKUP_IOPAD(0x0068, PIN_OUTPUT, 0) /* MCU_RGMII1_TX_CTL */
J721E_WKUP_IOPAD(0x006c, PIN_INPUT, 0) /* MCU_RGMII1_RX_CTL */
J721E_WKUP_IOPAD(0x0070, PIN_OUTPUT, 0) /* MCU_RGMII1_TD3 */
J721E_WKUP_IOPAD(0x0074, PIN_OUTPUT, 0) /* MCU_RGMII1_TD2 */
J721E_WKUP_IOPAD(0x0078, PIN_OUTPUT, 0) /* MCU_RGMII1_TD1 */
J721E_WKUP_IOPAD(0x007c, PIN_OUTPUT, 0) /* MCU_RGMII1_TD0 */
J721E_WKUP_IOPAD(0x0088, PIN_INPUT, 0) /* MCU_RGMII1_RD3 */
J721E_WKUP_IOPAD(0x008c, PIN_INPUT, 0) /* MCU_RGMII1_RD2 */
J721E_WKUP_IOPAD(0x0090, PIN_INPUT, 0) /* MCU_RGMII1_RD1 */
J721E_WKUP_IOPAD(0x0094, PIN_INPUT, 0) /* MCU_RGMII1_RD0 */
J721E_WKUP_IOPAD(0x0080, PIN_INPUT, 0) /* MCU_RGMII1_TXC */
J721E_WKUP_IOPAD(0x0084, PIN_INPUT, 0) /* MCU_RGMII1_RXC */
>;
};
mcu_mdio_pins_default: mcu_mdio1_pins_default {
pinctrl-single,pins = <
J721E_WKUP_IOPAD(0x009c, PIN_OUTPUT, 0) /* (L1) MCU_MDIO0_MDC */
J721E_WKUP_IOPAD(0x0098, PIN_INPUT, 0) /* (L4) MCU_MDIO0_MDIO */
>;
};
};
&main_pmx0 {
main_i2c0_pins_default: main-i2c0-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL */
J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA */
>;
};
main_usbss0_pins_default: main_usbss0_pins_default {
pinctrl-single,pins = <
J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS */
>;
};
};
&wkup_uart0 {
/* Wakeup UART is used by System firmware */
status = "disabled";
};
&main_uart0 {
power-domains = <&k3_pds 146 TI_SCI_PD_SHARED>;
};
&main_uart2 {
/* MAIN UART 2 is used by R5F firmware */
status = "disabled";
};
&main_uart3 {
/* UART not brought out */
status = "disabled";
};
&main_uart4 {
/* UART not brought out */
status = "disabled";
};
&main_uart5 {
/* UART not brought out */
status = "disabled";
};
&main_uart6 {
/* UART not brought out */
status = "disabled";
};
&main_uart7 {
/* UART not brought out */
status = "disabled";
};
&main_uart8 {
/* UART not brought out */
status = "disabled";
};
&main_uart9 {
/* UART not brought out */
status = "disabled";
};
&wkup_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&wkup_i2c0_pins_default>;
clock-frequency = <400000>;
};
&main_sdhci0 {
/* eMMC */
non-removable;
ti,driver-strength-ohm = <50>;
disable-wp;
};
&main_sdhci1 {
/* SD card */
ti,driver-strength-ohm = <50>;
disable-wp;
no-1-8-v;
sdhci-caps-mask = <0x8000000F 0x0>;
};
&main_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c0_pins_default>;
clock-frequency = <400000>;
exp1: gpio@20 {
compatible = "ti,tca6416";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
};
exp2: gpio@22 {
compatible = "ti,tca6424";
reg = <0x22>;
gpio-controller;
#gpio-cells = <2>;
};
};
&usbss0 {
pinctrl-names = "default";
pinctrl-0 = <&main_usbss0_pins_default>;
ti,vbus-divider;
ti,usb2-only;
};
&usb0 {
dr_mode = "otg";
maximum-speed = "high-speed";
};
&wkup_gpio0 {
pinctrl-names = "default";
pinctrl-0 = <&wkup_gpio_pins_default>;
};
&mcu_cpsw {
pinctrl-names = "default";
pinctrl-0 = <&mcu_cpsw_pins_default &mcu_mdio_pins_default>;
};
&davinci_mdio {
phy0: ethernet-phy@0 {
reg = <0>;
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
};
};
&cpsw_port1 {
phy-mode = "rgmii-rxid";
phy-handle = <&phy0>;
};