Commit cc611137 authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Arnd Bergmann
Browse files

ARM: drop efm32 platform 



I didn't touch this code since it served as a platform to introduce
ARMv7-M support to Linux. The only known machine that runs Linux has only
4 MiB of RAM (that originally only exists to hold the display's framebuffer).

There are no known users and no further use foreseeable, so drop the
code.

Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210115155130.185010-2-u.kleine-koenig@pengutronix.de

'
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 665a8799

arch/arm/Kconfig

+1 −9
Original line number Diff line number Diff line
@@ -725,14 +725,6 @@ source "arch/arm/mach-zx/Kconfig" 
source "arch/arm/mach-zynq/Kconfig"



# ARMv7-M architecture

config ARCH_EFM32

	bool "Energy Micro efm32"

	depends on ARM_SINGLE_ARMV7M

	select GPIOLIB

	help

	  Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko

	  processors.



config ARCH_LPC18XX

	bool "NXP LPC18xx/LPC43xx"

	depends on ARM_SINGLE_ARMV7M
@@ -1550,7 +1542,7 @@ config ARM_MODULE_PLTS 
config FORCE_MAX_ZONEORDER

	int "Maximum zone order"

	default "12" if SOC_AM33XX

	default "9" if SA1111 || ARCH_EFM32

	default "9" if SA1111

	default "11"

	help

	  The kernel memory allocator divides physically contiguous memory

arch/arm/Kconfig.debug

+0 −17
Original line number Diff line number Diff line
@@ -1448,20 +1448,6 @@ choice 
		  options; the platform specific options are deprecated

		  and will be soon removed.



	config DEBUG_LL_UART_EFM32

		bool "Kernel low-level debugging via efm32 UART"

		depends on ARCH_EFM32

		help

		  Say Y here if you want the debug print routines to direct

		  their output to an UART or USART port on efm32 based

		  machines. Use the following addresses for DEBUG_UART_PHYS:



		    0x4000c000 | USART0

		    0x4000c400 | USART1

		    0x4000c800 | USART2

		    0x4000e000 | UART0

		    0x4000e400 | UART1



	config DEBUG_LL_UART_PL01X

		bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"

		help
@@ -1579,7 +1565,6 @@ config DEBUG_LL_INCLUDE 
	default "debug/meson.S" if DEBUG_MESON_UARTAO

	default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X

	default "debug/exynos.S" if DEBUG_EXYNOS_UART

	default "debug/efm32.S" if DEBUG_LL_UART_EFM32

	default "debug/icedcc.S" if DEBUG_ICEDCC

	default "debug/imx.S" if DEBUG_IMX1_UART || \

				 DEBUG_IMX25_UART || \
@@ -1674,7 +1659,6 @@ config DEBUG_UART_PHYS 
	default 0x20201000 if DEBUG_BCM2835

	default 0x3e000000 if DEBUG_BCM_KONA_UART

	default 0x3f201000 if DEBUG_BCM2836

	default 0x4000e400 if DEBUG_LL_UART_EFM32

	default 0x40010000 if STM32MP1_DEBUG_UART

	default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \

				STM32H7_DEBUG_UART
@@ -1759,7 +1743,6 @@ config DEBUG_UART_PHYS 
	default 0xfffff200 if DEBUG_AT91_RM9200_DBGU

	depends on ARCH_EP93XX || \

	        DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \

		DEBUG_LL_UART_EFM32 || \

		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \

		DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \

		DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \

arch/arm/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -168,7 +168,6 @@ machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx 
machine-$(CONFIG_ARCH_DAVINCI)		+= davinci

machine-$(CONFIG_ARCH_DIGICOLOR)	+= digicolor

machine-$(CONFIG_ARCH_DOVE)		+= dove

machine-$(CONFIG_ARCH_EFM32)		+= efm32

machine-$(CONFIG_ARCH_EP93XX)		+= ep93xx

machine-$(CONFIG_ARCH_EXYNOS)		+= exynos

machine-$(CONFIG_ARCH_FOOTBRIDGE)	+= footbridge

arch/arm/boot/dts/Makefile

+0 −2
Original line number Diff line number Diff line
@@ -177,8 +177,6 @@ dtb-$(CONFIG_ARCH_DAVINCI) += \ 
	da850-lego-ev3.dtb

dtb-$(CONFIG_ARCH_DIGICOLOR) += \

	cx92755_equinox.dtb

dtb-$(CONFIG_ARCH_EFM32) += \

	efm32gg-dk3750.dtb

dtb-$(CONFIG_ARCH_EXYNOS3) += \

	exynos3250-artik5-eval.dtb \

	exynos3250-monk.dtb \

arch/arm/boot/dts/efm32gg-dk3750.dts

deleted100644 → 0
+0 −88
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Device tree for EFM32GG-DK3750 development board.

 *

 * Documentation available from

 * http://www.silabs.com/Support%20Documents/TechnicalDocs/efm32gg-dk3750-ug.pdf

 */



/dts-v1/;

#include "efm32gg.dtsi"



/ {

	model = "Energy Micro Giant Gecko Development Kit";

	compatible = "efm32,dk3750";



	chosen {

		bootargs = "console=ttyefm4,115200 init=/linuxrc ignore_loglevel ihash_entries=64 dhash_entries=64 earlyprintk uclinux.physaddr=0x8c400000 root=/dev/mtdblock0";

	};



	memory@88000000 {

		device_type = "memory";

		reg = <0x88000000 0x400000>;

	};



	soc {

		adc@40002000 {

			status = "ok";

		};



		i2c@4000a000 {

			energymicro,location = <3>;

			status = "ok";



			temp@48 {

				compatible = "st,stds75";

				reg = <0x48>;

			};



			eeprom@50 {

				compatible = "microchip,24c02", "atmel,24c02";

				reg = <0x50>;

				pagesize = <16>;

			};

		};



		spi0: spi@4000c000 { /* USART0 */

			cs-gpios = <&gpio 68 1>; // E4

			energymicro,location = <1>;

			status = "ok";



			microsd@0 {

				compatible = "mmc-spi-slot";

				spi-max-frequency = <100000>;

				voltage-ranges = <3200 3400>;

				broken-cd;

				reg = <0>;

			};

		};



		spi1: spi@4000c400 { /* USART1 */

			cs-gpios = <&gpio 51 1>; // D3

			energymicro,location = <1>;

			status = "ok";



			ks8851@0 {

				compatible = "ks8851";

				spi-max-frequency = <6000000>;

				reg = <0>;

				interrupt-parent = <&boardfpga>;

				interrupts = <4>;

			};

		};



		uart4: uart@4000e400 { /* UART1 */

			energymicro,location = <2>;

			status = "ok";

		};



		boardfpga: boardfpga@80000000 {

			compatible = "efm32board";

			reg = <0x80000000 0x400>;

			irq-gpios = <&gpio 64 1>;

			interrupt-controller;

			#interrupt-cells = <1>;

			status = "ok";

		};

	};

};