mirror of https://gitee.com/openkylin/linux.git
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: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20210115155130.185010-2-u.kleine-koenig@pengutronix.de' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Uwe Kleine-König
Arnd Bergmann
parent
665a8799b0
commit
cc6111375c
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@ -725,14 +725,6 @@ source "arch/arm/mach-zx/Kconfig"
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source "arch/arm/mach-zynq/Kconfig"
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# ARMv7-M architecture
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config ARCH_EFM32
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bool "Energy Micro efm32"
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depends on ARM_SINGLE_ARMV7M
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select GPIOLIB
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help
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Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
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processors.
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config ARCH_LPC18XX
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bool "NXP LPC18xx/LPC43xx"
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depends on ARM_SINGLE_ARMV7M
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@ -1550,7 +1542,7 @@ config ARM_MODULE_PLTS
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config FORCE_MAX_ZONEORDER
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int "Maximum zone order"
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default "12" if SOC_AM33XX
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default "9" if SA1111 || ARCH_EFM32
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default "9" if SA1111
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default "11"
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help
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The kernel memory allocator divides physically contiguous memory
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@ -1448,20 +1448,6 @@ choice
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options; the platform specific options are deprecated
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and will be soon removed.
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config DEBUG_LL_UART_EFM32
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bool "Kernel low-level debugging via efm32 UART"
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depends on ARCH_EFM32
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help
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Say Y here if you want the debug print routines to direct
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their output to an UART or USART port on efm32 based
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machines. Use the following addresses for DEBUG_UART_PHYS:
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0x4000c000 | USART0
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0x4000c400 | USART1
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0x4000c800 | USART2
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0x4000e000 | UART0
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0x4000e400 | UART1
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config DEBUG_LL_UART_PL01X
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bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
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help
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@ -1579,7 +1565,6 @@ config DEBUG_LL_INCLUDE
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default "debug/meson.S" if DEBUG_MESON_UARTAO
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default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
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default "debug/exynos.S" if DEBUG_EXYNOS_UART
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default "debug/efm32.S" if DEBUG_LL_UART_EFM32
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default "debug/icedcc.S" if DEBUG_ICEDCC
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default "debug/imx.S" if DEBUG_IMX1_UART || \
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DEBUG_IMX25_UART || \
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@ -1674,7 +1659,6 @@ config DEBUG_UART_PHYS
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default 0x20201000 if DEBUG_BCM2835
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default 0x3e000000 if DEBUG_BCM_KONA_UART
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default 0x3f201000 if DEBUG_BCM2836
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default 0x4000e400 if DEBUG_LL_UART_EFM32
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default 0x40010000 if STM32MP1_DEBUG_UART
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default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
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STM32H7_DEBUG_UART
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@ -1759,7 +1743,6 @@ config DEBUG_UART_PHYS
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default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
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depends on ARCH_EP93XX || \
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DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
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DEBUG_LL_UART_EFM32 || \
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DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
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DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
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DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
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@ -168,7 +168,6 @@ machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
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machine-$(CONFIG_ARCH_DAVINCI) += davinci
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machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor
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machine-$(CONFIG_ARCH_DOVE) += dove
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machine-$(CONFIG_ARCH_EFM32) += efm32
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machine-$(CONFIG_ARCH_EP93XX) += ep93xx
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machine-$(CONFIG_ARCH_EXYNOS) += exynos
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machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge
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@ -177,8 +177,6 @@ dtb-$(CONFIG_ARCH_DAVINCI) += \
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da850-lego-ev3.dtb
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dtb-$(CONFIG_ARCH_DIGICOLOR) += \
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cx92755_equinox.dtb
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dtb-$(CONFIG_ARCH_EFM32) += \
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efm32gg-dk3750.dtb
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dtb-$(CONFIG_ARCH_EXYNOS3) += \
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exynos3250-artik5-eval.dtb \
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exynos3250-monk.dtb \
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@ -1,88 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Device tree for EFM32GG-DK3750 development board.
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*
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* Documentation available from
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* http://www.silabs.com/Support%20Documents/TechnicalDocs/efm32gg-dk3750-ug.pdf
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*/
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/dts-v1/;
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#include "efm32gg.dtsi"
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/ {
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model = "Energy Micro Giant Gecko Development Kit";
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compatible = "efm32,dk3750";
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chosen {
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bootargs = "console=ttyefm4,115200 init=/linuxrc ignore_loglevel ihash_entries=64 dhash_entries=64 earlyprintk uclinux.physaddr=0x8c400000 root=/dev/mtdblock0";
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};
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memory@88000000 {
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device_type = "memory";
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reg = <0x88000000 0x400000>;
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};
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soc {
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adc@40002000 {
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status = "ok";
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};
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i2c@4000a000 {
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energymicro,location = <3>;
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status = "ok";
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temp@48 {
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compatible = "st,stds75";
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reg = <0x48>;
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};
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eeprom@50 {
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compatible = "microchip,24c02", "atmel,24c02";
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reg = <0x50>;
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pagesize = <16>;
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};
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};
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spi0: spi@4000c000 { /* USART0 */
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cs-gpios = <&gpio 68 1>; // E4
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energymicro,location = <1>;
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status = "ok";
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microsd@0 {
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compatible = "mmc-spi-slot";
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spi-max-frequency = <100000>;
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voltage-ranges = <3200 3400>;
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broken-cd;
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reg = <0>;
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};
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};
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spi1: spi@4000c400 { /* USART1 */
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cs-gpios = <&gpio 51 1>; // D3
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energymicro,location = <1>;
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status = "ok";
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ks8851@0 {
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compatible = "ks8851";
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spi-max-frequency = <6000000>;
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reg = <0>;
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interrupt-parent = <&boardfpga>;
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interrupts = <4>;
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};
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};
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uart4: uart@4000e400 { /* UART1 */
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energymicro,location = <2>;
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status = "ok";
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};
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boardfpga: boardfpga@80000000 {
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compatible = "efm32board";
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reg = <0x80000000 0x400>;
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irq-gpios = <&gpio 64 1>;
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interrupt-controller;
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#interrupt-cells = <1>;
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status = "ok";
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};
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};
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};
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@ -1,177 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Device tree for Energy Micro EFM32 Giant Gecko SoC.
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*
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* Documentation available from
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* http://www.silabs.com/Support%20Documents/TechnicalDocs/EFM32GG-RM.pdf
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*/
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#include "armv7-m.dtsi"
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#include "dt-bindings/clock/efm32-cmu.h"
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/ {
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#address-cells = <1>;
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#size-cells = <1>;
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aliases {
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i2c0 = &i2c0;
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i2c1 = &i2c1;
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serial0 = &uart0;
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serial1 = &uart1;
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serial2 = &uart2;
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serial3 = &uart3;
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serial4 = &uart4;
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spi0 = &spi0;
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spi1 = &spi1;
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spi2 = &spi2;
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};
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soc {
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adc: adc@40002000 {
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compatible = "energymicro,efm32-adc";
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reg = <0x40002000 0x400>;
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interrupts = <7>;
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clocks = <&cmu clk_HFPERCLKADC0>;
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status = "disabled";
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};
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gpio: gpio@40006000 {
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compatible = "energymicro,efm32-gpio";
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reg = <0x40006000 0x1000>;
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interrupts = <1 11>;
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gpio-controller;
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#gpio-cells = <2>;
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interrupt-controller;
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#interrupt-cells = <1>;
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clocks = <&cmu clk_HFPERCLKGPIO>;
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status = "ok";
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};
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i2c0: i2c@4000a000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "energymicro,efm32-i2c";
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reg = <0x4000a000 0x400>;
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interrupts = <9>;
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clocks = <&cmu clk_HFPERCLKI2C0>;
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clock-frequency = <100000>;
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status = "disabled";
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};
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i2c1: i2c@4000a400 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "energymicro,efm32-i2c";
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reg = <0x4000a400 0x400>;
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interrupts = <10>;
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clocks = <&cmu clk_HFPERCLKI2C1>;
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clock-frequency = <100000>;
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status = "disabled";
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};
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spi0: spi@4000c000 { /* USART0 */
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "energymicro,efm32-spi";
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reg = <0x4000c000 0x400>;
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interrupts = <3 4>;
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clocks = <&cmu clk_HFPERCLKUSART0>;
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status = "disabled";
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};
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spi1: spi@4000c400 { /* USART1 */
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "energymicro,efm32-spi";
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reg = <0x4000c400 0x400>;
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interrupts = <15 16>;
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clocks = <&cmu clk_HFPERCLKUSART1>;
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status = "disabled";
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};
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spi2: spi@4000c800 { /* USART2 */
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "energymicro,efm32-spi";
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reg = <0x4000c800 0x400>;
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interrupts = <18 19>;
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clocks = <&cmu clk_HFPERCLKUSART2>;
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status = "disabled";
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};
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uart0: uart@4000c000 { /* USART0 */
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compatible = "energymicro,efm32-uart";
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reg = <0x4000c000 0x400>;
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interrupts = <3 4>;
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clocks = <&cmu clk_HFPERCLKUSART0>;
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status = "disabled";
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};
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uart1: uart@4000c400 { /* USART1 */
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compatible = "energymicro,efm32-uart";
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reg = <0x4000c400 0x400>;
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interrupts = <15 16>;
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clocks = <&cmu clk_HFPERCLKUSART1>;
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status = "disabled";
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};
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uart2: uart@4000c800 { /* USART2 */
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compatible = "energymicro,efm32-uart";
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reg = <0x4000c800 0x400>;
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interrupts = <18 19>;
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clocks = <&cmu clk_HFPERCLKUSART2>;
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status = "disabled";
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};
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uart3: uart@4000e000 { /* UART0 */
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compatible = "energymicro,efm32-uart";
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reg = <0x4000e000 0x400>;
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interrupts = <20 21>;
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clocks = <&cmu clk_HFPERCLKUART0>;
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status = "disabled";
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};
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uart4: uart@4000e400 { /* UART1 */
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compatible = "energymicro,efm32-uart";
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reg = <0x4000e400 0x400>;
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interrupts = <22 23>;
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clocks = <&cmu clk_HFPERCLKUART1>;
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status = "disabled";
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};
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timer0: timer@40010000 {
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compatible = "energymicro,efm32-timer";
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reg = <0x40010000 0x400>;
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interrupts = <2>;
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clocks = <&cmu clk_HFPERCLKTIMER0>;
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};
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timer1: timer@40010400 {
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compatible = "energymicro,efm32-timer";
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reg = <0x40010400 0x400>;
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interrupts = <12>;
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clocks = <&cmu clk_HFPERCLKTIMER1>;
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};
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timer2: timer@40010800 {
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compatible = "energymicro,efm32-timer";
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reg = <0x40010800 0x400>;
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interrupts = <13>;
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clocks = <&cmu clk_HFPERCLKTIMER2>;
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};
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timer3: timer@40010c00 {
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compatible = "energymicro,efm32-timer";
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reg = <0x40010c00 0x400>;
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interrupts = <14>;
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clocks = <&cmu clk_HFPERCLKTIMER3>;
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};
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cmu: cmu@400c8000 {
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compatible = "efm32gg,cmu";
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reg = <0x400c8000 0x400>;
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interrupts = <32>;
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#clock-cells = <1>;
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};
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};
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};
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@ -1,98 +0,0 @@
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CONFIG_HIGH_RES_TIMERS=y
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CONFIG_LOG_BUF_SHIFT=12
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CONFIG_CC_OPTIMIZE_FOR_SIZE=y
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# CONFIG_UID16 is not set
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# CONFIG_BASE_FULL is not set
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# CONFIG_FUTEX is not set
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# CONFIG_EPOLL is not set
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# CONFIG_SIGNALFD is not set
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# CONFIG_EVENTFD is not set
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# CONFIG_AIO is not set
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CONFIG_EMBEDDED=y
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# CONFIG_VM_EVENT_COUNTERS is not set
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# CONFIG_SLUB_DEBUG is not set
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# CONFIG_BLK_DEV_BSG is not set
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# CONFIG_MMU is not set
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CONFIG_ARM_SINGLE_ARMV7M=y
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CONFIG_ARCH_EFM32=y
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CONFIG_SET_MEM_PARAM=y
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CONFIG_DRAM_BASE=0x88000000
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CONFIG_DRAM_SIZE=0x00400000
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CONFIG_FLASH_MEM_BASE=0x8c000000
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CONFIG_FLASH_SIZE=0x01000000
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CONFIG_PREEMPT=y
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CONFIG_ZBOOT_ROM_TEXT=0x0
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CONFIG_ZBOOT_ROM_BSS=0x0
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CONFIG_XIP_KERNEL=y
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CONFIG_XIP_PHYS_ADDR=0x8c000000
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CONFIG_BINFMT_FLAT=y
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CONFIG_BINFMT_SHARED_FLAT=y
|
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# CONFIG_COREDUMP is not set
|
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CONFIG_NET=y
|
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CONFIG_PACKET=y
|
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CONFIG_UNIX=y
|
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CONFIG_INET=y
|
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# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
|
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# CONFIG_INET_XFRM_MODE_TUNNEL is not set
|
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# CONFIG_INET_XFRM_MODE_BEET is not set
|
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# CONFIG_INET_DIAG is not set
|
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# CONFIG_IPV6 is not set
|
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# CONFIG_WIRELESS is not set
|
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CONFIG_DEVTMPFS=y
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CONFIG_DEVTMPFS_MOUNT=y
|
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# CONFIG_FW_LOADER is not set
|
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CONFIG_MTD=y
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CONFIG_MTD_BLOCK_RO=y
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CONFIG_MTD_ROM=y
|
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CONFIG_MTD_UCLINUX=y
|
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# CONFIG_BLK_DEV is not set
|
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CONFIG_NETDEVICES=y
|
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# CONFIG_NET_VENDOR_ARC is not set
|
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# CONFIG_NET_CADENCE is not set
|
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# CONFIG_NET_VENDOR_BROADCOM is not set
|
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# CONFIG_NET_VENDOR_CIRRUS is not set
|
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# CONFIG_NET_VENDOR_FARADAY is not set
|
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# CONFIG_NET_VENDOR_INTEL is not set
|
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# CONFIG_NET_VENDOR_MARVELL is not set
|
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CONFIG_KS8851=y
|
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# CONFIG_NET_VENDOR_MICROCHIP is not set
|
||||
# CONFIG_NET_VENDOR_NATSEMI is not set
|
||||
# CONFIG_NET_VENDOR_SEEQ is not set
|
||||
# CONFIG_NET_VENDOR_SMSC is not set
|
||||
# CONFIG_NET_VENDOR_STMICRO is not set
|
||||
# CONFIG_NET_VENDOR_VIA is not set
|
||||
# CONFIG_NET_VENDOR_WIZNET is not set
|
||||
# CONFIG_WLAN is not set
|
||||
# CONFIG_INPUT is not set
|
||||
# CONFIG_SERIO is not set
|
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# CONFIG_VT is not set
|
||||
# CONFIG_UNIX98_PTYS is not set
|
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# CONFIG_LEGACY_PTYS is not set
|
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CONFIG_SERIAL_NONSTANDARD=y
|
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# CONFIG_DEVKMEM is not set
|
||||
CONFIG_SERIAL_EFM32_UART=y
|
||||
CONFIG_SERIAL_EFM32_UART_CONSOLE=y
|
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# CONFIG_HW_RANDOM is not set
|
||||
CONFIG_I2C=y
|
||||
# CONFIG_I2C_COMPAT is not set
|
||||
CONFIG_I2C_EFM32=y
|
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CONFIG_SPI=y
|
||||
CONFIG_SPI_EFM32=y
|
||||
CONFIG_GPIO_SYSFS=y
|
||||
# CONFIG_USB_SUPPORT is not set
|
||||
CONFIG_MMC=y
|
||||
CONFIG_MMC_SPI=y
|
||||
CONFIG_EXT2_FS=y
|
||||
# CONFIG_FILE_LOCKING is not set
|
||||
# CONFIG_DNOTIFY is not set
|
||||
# CONFIG_INOTIFY_USER is not set
|
||||
CONFIG_ROMFS_FS=y
|
||||
CONFIG_ROMFS_BACKED_BY_MTD=y
|
||||
# CONFIG_NETWORK_FILESYSTEMS is not set
|
||||
CONFIG_PRINTK_TIME=y
|
||||
CONFIG_DEBUG_INFO=y
|
||||
# CONFIG_ENABLE_MUST_CHECK is not set
|
||||
CONFIG_MAGIC_SYSRQ=y
|
||||
# CONFIG_SCHED_DEBUG is not set
|
||||
# CONFIG_DEBUG_BUGVERBOSE is not set
|
||||
# CONFIG_FTRACE is not set
|
||||
|
|
@ -1,45 +0,0 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
/*
|
||||
* Copyright (C) 2013 Pengutronix
|
||||
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
|
||||
*/
|
||||
|
||||
#define UARTn_CMD 0x000c
|
||||
#define UARTn_CMD_TXEN 0x0004
|
||||
|
||||
#define UARTn_STATUS 0x0010
|
||||
#define UARTn_STATUS_TXC 0x0020
|
||||
#define UARTn_STATUS_TXBL 0x0040
|
||||
|
||||
#define UARTn_TXDATA 0x0034
|
||||
|
||||
.macro addruart, rx, tmp, tmp2
|
||||
ldr \rx, =(CONFIG_DEBUG_UART_PHYS)
|
||||
|
||||
/*
|
||||
* enable TX. The driver might disable it to save energy. We
|
||||
* don't care about disabling at the end as during debug power
|
||||
* consumption isn't that important.
|
||||
*/
|
||||
ldr \tmp, =(UARTn_CMD_TXEN)
|
||||
str \tmp, [\rx, #UARTn_CMD]
|
||||
.endm
|
||||
|
||||
.macro senduart,rd,rx
|
||||
strb \rd, [\rx, #UARTn_TXDATA]
|
||||
.endm
|
||||
|
||||
.macro waituartcts,rd,rx
|
||||
.endm
|
||||
|
||||
.macro waituarttxrdy,rd,rx
|
||||
1001: ldr \rd, [\rx, #UARTn_STATUS]
|
||||
tst \rd, #UARTn_STATUS_TXBL
|
||||
beq 1001b
|
||||
.endm
|
||||
|
||||
.macro busyuart,rd,rx
|
||||
1001: ldr \rd, [\rx, UARTn_STATUS]
|
||||
tst \rd, #UARTn_STATUS_TXC
|
||||
bne 1001b
|
||||
.endm
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
obj-y += dtmachine.o
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
# Empty file waiting for deletion once Makefile.boot isn't needed any more.
|
||||
# Patch waits for application at
|
||||
# http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7889/1 .
|
||||
|
|
@ -1,16 +0,0 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
#include <linux/kernel.h>
|
||||
|
||||
#include <asm/v7m.h>
|
||||
|
||||
#include <asm/mach/arch.h>
|
||||
|
||||
static const char *const efm32gg_compat[] __initconst = {
|
||||
"efm32,dk3750",
|
||||
NULL
|
||||
};
|
||||
|
||||
DT_MACHINE_START(EFM32DT, "EFM32 (Device Tree Support)")
|
||||
.dt_compat = efm32gg_compat,
|
||||
.restart = armv7m_restart,
|
||||
MACHINE_END
|
||||
|
|
@ -638,7 +638,6 @@ config CPU_V7M_NUM_IRQ
|
|||
int "Number of external interrupts connected to the NVIC"
|
||||
depends on CPU_V7M
|
||||
default 90 if ARCH_STM32
|
||||
default 38 if ARCH_EFM32
|
||||
default 112 if SOC_VF610
|
||||
default 240
|
||||
help
|
||||
|
|
|
|||
Loading…
Reference in New Issue