Introduce the Microchip LAN9696 SoC (lan969x family) and the EV23X71A evaluation board, booted as BL33 from TF-A.
Signed-off-by: Oleksij Rempel <[email protected]> --- arch/arm/Kconfig | 11 +++ arch/arm/boards/Makefile | 1 + .../microchip-lan9696-ev23x71a/Makefile | 4 ++ .../boards/microchip-lan9696-ev23x71a/board.c | 33 +++++++++ .../microchip-lan9696-ev23x71a/lowlevel.c | 34 ++++++++++ arch/arm/dts/Makefile | 1 + arch/arm/dts/lan9691-bb.dtsi | 68 +++++++++++++++++++ arch/arm/dts/lan9696-ev23x71a.dts | 65 ++++++++++++++++++ images/Makefile | 1 + images/Makefile.microchip | 9 +++ 10 files changed, 227 insertions(+) create mode 100644 arch/arm/boards/microchip-lan9696-ev23x71a/Makefile create mode 100644 arch/arm/boards/microchip-lan9696-ev23x71a/board.c create mode 100644 arch/arm/boards/microchip-lan9696-ev23x71a/lowlevel.c create mode 100644 arch/arm/dts/lan9691-bb.dtsi create mode 100644 arch/arm/dts/lan9696-ev23x71a.dts create mode 100644 images/Makefile.microchip diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5fdec7159827..26f0d040ca68 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -301,6 +301,17 @@ source "arch/arm/mach-tegra/Kconfig" source "arch/arm/mach-zynq/Kconfig" source "arch/arm/mach-zynqmp/Kconfig" +if ARCH_MICROCHIP + +config MACH_MICROCHIP_LAN9696_EV23X71A + bool "Microchip LAN9696 EV23X71A Evaluation Board" + help + Support for Microchip LAN9696 EV23X71A Evaluation Board. + This is a 28-port Ethernet switch SoC with ARM64 CPU and + AT91/SAMA5 compatible peripherals. + +endif # ARCH_MICROCHIP + config BOARD_ARM_VIRT bool select BOARD_GENERIC_DT diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile index f08983f4d23f..4a15cb8e5909 100644 --- a/arch/arm/boards/Makefile +++ b/arch/arm/boards/Makefile @@ -116,6 +116,7 @@ obj-$(CONFIG_MACH_SAMA5D27_GIANTBOARD) += sama5d27-giantboard/ obj-$(CONFIG_MACH_SAMA5D27_SOM1) += sama5d27-som1/ obj-$(CONFIG_MACH_SAMA5D3_XPLAINED) += sama5d3_xplained/ obj-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += microchip-ksz9477-evb/ +obj-$(CONFIG_MACH_MICROCHIP_LAN9696_EV23X71A) += microchip-lan9696-ev23x71a/ obj-$(CONFIG_MACH_MICROCHIP_SAMA5D3_EDS) += microchip-sama5d3-eds/ obj-$(CONFIG_MACH_SAMA5D4_XPLAINED) += sama5d4_xplained/ obj-$(CONFIG_MACH_SAMA5D4_WIFX) += sama5d4_wifx/ diff --git a/arch/arm/boards/microchip-lan9696-ev23x71a/Makefile b/arch/arm/boards/microchip-lan9696-ev23x71a/Makefile new file mode 100644 index 000000000000..5678718188b9 --- /dev/null +++ b/arch/arm/boards/microchip-lan9696-ev23x71a/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only + +lwl-y += lowlevel.o +obj-y += board.o diff --git a/arch/arm/boards/microchip-lan9696-ev23x71a/board.c b/arch/arm/boards/microchip-lan9696-ev23x71a/board.c new file mode 100644 index 000000000000..2707a425659d --- /dev/null +++ b/arch/arm/boards/microchip-lan9696-ev23x71a/board.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2026 Oleksij Rempel <[email protected]> + */ + +#include <bbu.h> +#include <bootsource.h> +#include <common.h> +#include <deep-probe.h> +#include <init.h> + +static int lan9696_probe(struct device *dev) +{ + bbu_register_std_file_update("nor", BBU_HANDLER_FLAG_DEFAULT, + "/dev/m25p0", filetype_fip); + return 0; +} + +static const struct of_device_id lan9696_of_match[] = { + { + .compatible = "microchip,ev23x71a", + }, + { /* sentinel */ }, +}; + +static struct driver lan9696_board_driver = { + .name = "board-lan9696-ev23x71a", + .probe = lan9696_probe, + .of_compatible = lan9696_of_match, +}; +coredevice_platform_driver(lan9696_board_driver); + +BAREBOX_DEEP_PROBE_ENABLE(lan9696_of_match); diff --git a/arch/arm/boards/microchip-lan9696-ev23x71a/lowlevel.c b/arch/arm/boards/microchip-lan9696-ev23x71a/lowlevel.c new file mode 100644 index 000000000000..c95bbd4cccc0 --- /dev/null +++ b/arch/arm/boards/microchip-lan9696-ev23x71a/lowlevel.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2026 Oleksij Rempel <[email protected]> + */ + +#include <common.h> +#include <linux/sizes.h> +#include <asm/barebox-arm.h> + +extern char __dtb_z_lan9696_ev23x71a_start[]; + +/* + * EV23x71a memory map. + * + * The board has 896 MiB of DDR mapped at 0x60000000. TF-A's BL31 + * (EL3 runtime) lives in the top 2 MiB of that region, so the + * usable area for barebox + payload ends at LAN9696_DRAM_USABLE_END. + */ +#define LAN9696_DRAM_BASE UL(0x60000000) +#define LAN9696_DRAM_SIZE (896 * SZ_1M) +#define LAN9696_BL31_RESERVE SZ_2M +#define LAN9696_DRAM_USABLE (LAN9696_DRAM_SIZE - LAN9696_BL31_RESERVE) +#define LAN9696_DRAM_USABLE_END (LAN9696_DRAM_BASE + LAN9696_DRAM_USABLE) + +ENTRY_FUNCTION_WITHSTACK(start_lan9696_ev23x71a, + LAN9696_DRAM_USABLE_END, r0, r1, r2) +{ + arm_cpu_lowlevel_init(); + relocate_to_current_adr(); + setup_c(); + + barebox_arm_entry(LAN9696_DRAM_BASE, LAN9696_DRAM_USABLE, + runtime_address(__dtb_z_lan9696_ev23x71a_start)); +} diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 55149d9c3675..f993da7ebb65 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -256,6 +256,7 @@ lwl-$(CONFIG_MACH_LS1046ARDB) += fsl-ls1046a-rdb.dtb.o lwl-$(CONFIG_MACH_TQMLS1046A) += fsl-ls1046a-tqmls1046a-mbls10xxa.dtb.o lwl-$(CONFIG_MACH_TQMLS1046A) += fsl-tqmls1046a-arkona-at300.dtb.o lwl-$(CONFIG_MACH_LS1021AIOT) += fsl-ls1021a-iot.dtb.o +lwl-$(CONFIG_MACH_MICROCHIP_LAN9696_EV23X71A) += lan9696-ev23x71a.dtb.o lwl-$(CONFIG_MACH_ZEDBOARD) += zynq-zed.dtb.o lwl-$(CONFIG_MACH_MNT_REFORM) += imx8mq-mnt-reform2.dtb.o lwl-$(CONFIG_MACH_VARISCITE_DT8MCUSTOMBOARD_IMX8MP) += imx8mp-var-dart-dt8mcustomboard.dtb.o diff --git a/arch/arm/dts/lan9691-bb.dtsi b/arch/arm/dts/lan9691-bb.dtsi new file mode 100644 index 000000000000..72e1b870f68c --- /dev/null +++ b/arch/arm/dts/lan9691-bb.dtsi @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT) +/* + * Barebox-only overlay for the LAN9691 SoC. Adds nodes that exist in the + * upstream Linux DTSI but are not yet present in the snapshot under + * barebox/dts/src/ (which is auto-synced from Linux and must not be patched + * locally). + * + * Nodes here are copied verbatim from + * linux/arch/arm64/boot/dts/microchip/lan9691.dtsi + * so that when the upstream snapshot catches up, this file can be deleted + * (or trimmed) without touching anything else. + */ + +#include <arm64/microchip/clk-lan9691.h> + +&axi { + sdmmc0: mmc@e0830000 { + compatible = "microchip,lan9691-sdhci"; + reg = <0xe0830000 0x00000300>; + interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks GCK_ID_SDMMC0>, <&clks GCK_ID_SDMMC0>; + clock-names = "hclock", "multclk"; + assigned-clocks = <&clks GCK_ID_SDMMC0>; + assigned-clock-rates = <100000000>; + status = "disabled"; + }; + + sdmmc1: mmc@e0838000 { + compatible = "microchip,lan9691-sdhci"; + reg = <0xe0838000 0x00000300>; + interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks GCK_ID_SDMMC1>, <&clks GCK_ID_SDMMC1>; + clock-names = "hclock", "multclk"; + assigned-clocks = <&clks GCK_ID_SDMMC1>; + assigned-clock-rates = <45000000>; + status = "disabled"; + }; + + qspi0: spi@e0804000 { + compatible = "microchip,lan9691-qspi", "microchip,lan966x-qspi"; + reg = <0xe0804000 0x00000100>, + <0x20000000 0x08000000>; + reg-names = "qspi_base", "qspi_mmap"; + interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&fabric_clk>, <&clks GCK_ID_QSPI0>; + clock-names = "pclk", "gclk"; + assigned-clocks = <&clks GCK_ID_QSPI0>; + assigned-clock-rates = <100000000>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + qspi2: spi@e0834000 { + compatible = "microchip,lan9691-qspi", "microchip,lan966x-qspi"; + reg = <0xe0834000 0x00000100>, + <0x30000000 0x04000000>; + reg-names = "qspi_base", "qspi_mmap"; + interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&fabric_clk>, <&clks GCK_ID_QSPI2>; + clock-names = "pclk", "gclk"; + assigned-clocks = <&clks GCK_ID_QSPI2>; + assigned-clock-rates = <100000000>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; +}; diff --git a/arch/arm/dts/lan9696-ev23x71a.dts b/arch/arm/dts/lan9696-ev23x71a.dts new file mode 100644 index 000000000000..e72abca6ed39 --- /dev/null +++ b/arch/arm/dts/lan9696-ev23x71a.dts @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT) +/* + * Copyright (C) 2025 Microchip Technology Inc. + */ + +/dts-v1/; + +/* Include upstream device tree from Linux */ +#include <arm64/microchip/lan9696-ev23x71a.dts> + +#include "lan9691-bb.dtsi" + +/* Ensure serial console is enabled */ +&usart0 { + status = "okay"; +}; + +&sdmmc0 { + pinctrl-0 = <&emmc_sd_pins>; + pinctrl-names = "default"; + max-frequency = <100000000>; + bus-width = <8>; + mmc-ddr-1_8v; + mmc-hs200-1_8v; + non-removable; + disable-wp; + status = "okay"; +}; + +&{/leds/led-status} { + barebox,default-trigger = "heartbeat"; +}; + +&{/leds/led-sfp1-green} { + barebox,default-trigger = "heartbeat"; +}; + +&sgpio { + pinctrl-0 = <&sgpio_pins>; + pinctrl-names = "default"; + microchip,sgpio-port-ranges = <0 1>, <6 9>; + status = "okay"; + + gpio@0 { + ngpios = <128>; + }; + gpio@1 { + ngpios = <128>; + }; +}; + +&qspi0 { + status = "okay"; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <50000000>; + #address-cells = <1>; + #size-cells = <1>; + spi-tx-bus-width = <1>; + spi-rx-bus-width = <4>; + m25p,fast-read; + }; +}; diff --git a/images/Makefile b/images/Makefile index 91425dd3a068..644b7ee0bf93 100644 --- a/images/Makefile +++ b/images/Makefile @@ -193,6 +193,7 @@ include $(srctree)/images/Makefile.versatile include $(srctree)/images/Makefile.vexpress include $(srctree)/images/Makefile.xburst include $(srctree)/images/Makefile.at91 +include $(srctree)/images/Makefile.microchip include $(srctree)/images/Makefile.zynq include $(srctree)/images/Makefile.zynqmp include $(srctree)/images/Makefile.layerscape diff --git a/images/Makefile.microchip b/images/Makefile.microchip new file mode 100644 index 000000000000..161396c73542 --- /dev/null +++ b/images/Makefile.microchip @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# barebox image generation Makefile for Microchip ARM64 SoCs +# + +# Microchip LAN9696 EV23X71A Evaluation Board +pblb-$(CONFIG_MACH_MICROCHIP_LAN9696_EV23X71A) += start_lan9696_ev23x71a +FILE_barebox-microchip-lan9696-ev23x71a.img = start_lan9696_ev23x71a.pblb +image-$(CONFIG_MACH_MICROCHIP_LAN9696_EV23X71A) += barebox-microchip-lan9696-ev23x71a.img -- 2.47.3
