From 26bd3f312c2ece0e8860c80fc64a112df5a620c6 Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Mon, 14 Sep 2020 21:52:31 +0530 Subject: [PATCH] arm64: dts: ti: Add support for J7200 Common Processor Board Add support for J7200 Common Processor Board. The EVM architecture is very similar to J721E as follows: +------------------------------------------------------+ | +-------------------------------------------+ | | | | | | | Add-on Card 1 Options | | | | | | | +-------------------------------------------+ | | | | | | +-------------------+ | | | | | | | SOM | | | +--------------+ | | | | | | | | | | | Add-on | +-------------------+ | | | Card 2 | | Power Supply | | Options | | | | | | | | | +--------------+ | <--- +------------------------------------------------------+ Common Processor Board Common Processor board is the baseboard that has most of the actual connectors, power supply etc. A SOM (System on Module) is plugged on to the common processor board and this contains the SoC, PMIC, DDR and basic high speed components necessary for functionality. Note: * The minimum configuration required to boot up the board is System On Module(SOM) + Common Processor Board. * Since there is just a single SOM and Common Processor Board, we are maintaining common processor board as the base dts and SOM as the dtsi that we include. In the future as more SOM's appear, we should move common processor board as a dtsi and include configurations as dts. * All daughter cards beyond the basic boards shall be maintained as overlays. Signed-off-by: Lokesh Vutla Signed-off-by: Peter Ujfalusi Signed-off-by: Nishanth Menon Reviewed-by: Grygorii Strashko Reviewed-by: Suman Anna Link: https://lore.kernel.org/r/20200914162231.2535-6-lokeshvutla@ti.com --- arch/arm64/boot/dts/ti/Makefile | 2 + .../boot/dts/ti/k3-j7200-common-proc-board.dts | 65 ++++++++++++++++++++++ arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi | 29 ++++++++++ 3 files changed, 96 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 7f28be6..65506f2 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -9,3 +9,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb dtb-$(CONFIG_ARCH_K3) += k3-j721e-common-proc-board.dtb + +dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts new file mode 100644 index 0000000..d257d23 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; + +#include "k3-j7200-som-p0.dtsi" + +/ { + chosen { + stdout-path = "serial2:115200n8"; + bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000"; + }; +}; + +&wkup_uart0 { + /* Wakeup UART is used by System firmware */ + status = "disabled"; +}; + +&main_uart0 { + /* Shared with ATF on this platform */ + 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"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi new file mode 100644 index 0000000..f7e271c --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; + +#include "k3-j7200.dtsi" + +/ { + memory@80000000 { + device_type = "memory"; + /* 4G RAM */ + reg = <0x00 0x80000000 0x00 0x80000000>, + <0x08 0x80000000 0x00 0x80000000>; + }; + + reserved_memory: reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + secure_ddr: optee@9e800000 { + reg = <0x00 0x9e800000 0x00 0x01800000>; + alignment = <0x1000>; + no-map; + }; + }; +}; -- 2.7.4