| Message ID | 20210827092623.10677-1-kavyasree.kotagiri@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: at91: add basic support for new SoC lan966x | expand |
Hello Kavya, Thank you for the patch and the upstreaming effort! On 27/08/2021 14:56:23+0530, kavyasree.kotagiri@microchip.com wrote: > From: Kavyasree Kotagiri <Kavyasree.Kotagiri@microchip.com> > > This patch introduces Microchip LAN966X ARMv7 based SoC family > of multiport gigabit AVB/TSN-capable ethernet switches. > It supports two SKUs: 4-port LAN9662 with multiprotocol > processing support and 8-port LAN9668 switch. > > LAN966X includes copper and serial ethernet interfaces, > peripheral interfaces such as PCIe, USB, TWI, SPI, UART, QSPI, > SD/eMMC, Parallel Interface (PI) as well as synchronization > and trigger inputs/outputs. > > Signed-off-by: Kavya Sree Kotagiri <kavyasree.kotagiri@microchip.com> > --- > arch/arm/mach-at91/Kconfig | 13 +++++++++++++ > arch/arm/mach-at91/Makefile | 1 + > arch/arm/mach-at91/lan966x.c | 31 +++++++++++++++++++++++++++++++ > 3 files changed, 45 insertions(+) > create mode 100644 arch/arm/mach-at91/lan966x.c > > diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig > index ccd7e80ce943..06cb425af761 100644 > --- a/arch/arm/mach-at91/Kconfig > +++ b/arch/arm/mach-at91/Kconfig > @@ -122,6 +122,14 @@ config SOC_SAM9X60 > help > Select this if you are using Microchip's SAM9X60 SoC > > +config SOC_LAN966X > + bool "ARMv7 based Microchip LAN966X SoC family" > + depends on ARCH_MULTI_V7 > + select SOC_LAN966 > + select DW_APB_TIMER_OF > + help > + This enables support for ARMv7 based Microchip LAN966X SoC family. > + > comment "Clocksource driver selection" > > config ATMEL_CLOCKSOURCE_PIT > @@ -188,6 +196,11 @@ config SOC_SAMA5 > select SOC_SAM_V7 > select SRAM if PM > > +config SOC_LAN966 > + bool > + select ARM_GIC > + select MEMORY > + > config ATMEL_PM > bool > > diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile > index f565490f1b70..93cfd5b4e6d4 100644 > --- a/arch/arm/mach-at91/Makefile > +++ b/arch/arm/mach-at91/Makefile > @@ -6,6 +6,7 @@ > # CPU-specific support > obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o > obj-$(CONFIG_SOC_AT91SAM9) += at91sam9.o > +obj-$(CONFIG_SOC_LAN966X) += lan966x.o > obj-$(CONFIG_SOC_SAM9X60) += sam9x60.o > obj-$(CONFIG_SOC_SAMA5) += sama5.o > obj-$(CONFIG_SOC_SAMV7) += samv7.o > diff --git a/arch/arm/mach-at91/lan966x.c b/arch/arm/mach-at91/lan966x.c > new file mode 100644 > index 000000000000..de689f854068 > --- /dev/null > +++ b/arch/arm/mach-at91/lan966x.c > @@ -0,0 +1,31 @@ > +// SPDX-License-Identifier: GPL-2.0-or-later > +/* > + * Setup code for LAN966X > + * > + * Copyright (C) 2021 Microchip Technology, Inc. and its subsidiaries > + * > + */ > + > +#include <linux/of.h> > +#include <linux/of_platform.h> > + > +#include <asm/mach/arch.h> > +#include <asm/system_misc.h> > + > +#include "generic.h" > + > +static void __init lan966x_dt_device_init(void) > +{ > + of_platform_default_populate(NULL, NULL, NULL); Are you sure this is needed? This is a workaround that is there on the other platforms because of the at91 pinctrl driver. Ideally, you should be able to boot without that. Can you confirm? > +} > + > +static const char *const lan966x_dt_board_compat[] __initconst = { > + "microchip,lan966x", > + NULL > +}; > + > +DT_MACHINE_START(lan966x_dt, "Microchip LAN966X") > + /* Maintainer: Microchip */ > + .init_machine = lan966x_dt_device_init, > + .dt_compat = lan966x_dt_board_compat, > +MACHINE_END > -- > 2.17.1 >
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index ccd7e80ce943..06cb425af761 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -122,6 +122,14 @@ config SOC_SAM9X60 help Select this if you are using Microchip's SAM9X60 SoC +config SOC_LAN966X + bool "ARMv7 based Microchip LAN966X SoC family" + depends on ARCH_MULTI_V7 + select SOC_LAN966 + select DW_APB_TIMER_OF + help + This enables support for ARMv7 based Microchip LAN966X SoC family. + comment "Clocksource driver selection" config ATMEL_CLOCKSOURCE_PIT @@ -188,6 +196,11 @@ config SOC_SAMA5 select SOC_SAM_V7 select SRAM if PM +config SOC_LAN966 + bool + select ARM_GIC + select MEMORY + config ATMEL_PM bool diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index f565490f1b70..93cfd5b4e6d4 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -6,6 +6,7 @@ # CPU-specific support obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o obj-$(CONFIG_SOC_AT91SAM9) += at91sam9.o +obj-$(CONFIG_SOC_LAN966X) += lan966x.o obj-$(CONFIG_SOC_SAM9X60) += sam9x60.o obj-$(CONFIG_SOC_SAMA5) += sama5.o obj-$(CONFIG_SOC_SAMV7) += samv7.o diff --git a/arch/arm/mach-at91/lan966x.c b/arch/arm/mach-at91/lan966x.c new file mode 100644 index 000000000000..de689f854068 --- /dev/null +++ b/arch/arm/mach-at91/lan966x.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Setup code for LAN966X + * + * Copyright (C) 2021 Microchip Technology, Inc. and its subsidiaries + * + */ + +#include <linux/of.h> +#include <linux/of_platform.h> + +#include <asm/mach/arch.h> +#include <asm/system_misc.h> + +#include "generic.h" + +static void __init lan966x_dt_device_init(void) +{ + of_platform_default_populate(NULL, NULL, NULL); +} + +static const char *const lan966x_dt_board_compat[] __initconst = { + "microchip,lan966x", + NULL +}; + +DT_MACHINE_START(lan966x_dt, "Microchip LAN966X") + /* Maintainer: Microchip */ + .init_machine = lan966x_dt_device_init, + .dt_compat = lan966x_dt_board_compat, +MACHINE_END