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ARM: new platform for Energy Micro's EFM32 Cortex-M3 SoCs

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There are still some missing parts (e.g. board support, device trees),
but with these bits added on top of this patch I can successfully boot a
EFM32GG-DK3750 board that uses an EFM32GG990F1024.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2011-11-17 14:36:23 +01:00
parent 319e2e3f63
commit 6d85e2b0b6
8 changed files with 150 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
arch/arm/Kconfig
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@ -410,6 +410,26 @@ config ARCH_EBSA110
Ethernet interface, two PCMCIA sockets, two serial ports and a
parallel port.
config ARCH_EFM32
bool "Energy Micro efm32"
depends on !MMU
select ARCH_REQUIRE_GPIOLIB
select ARM_NVIC
# CLKSRC_MMIO is wrong here, but needed until a proper fix is merged,
# i.e. CLKSRC_EFM32 selecting CLKSRC_MMIO
select CLKSRC_MMIO
select CLKSRC_OF
select COMMON_CLK
select CPU_V7M
select GENERIC_CLOCKEVENTS
select NO_DMA
select NO_IOPORT
select SPARSE_IRQ
select USE_OF
help
Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
processors.
config ARCH_EP93XX
bool "EP93xx-based"
select ARCH_HAS_HOLES_MEMORYMODEL
@ -1799,7 +1819,7 @@ config FORCE_MAX_ZONEORDER
int "Maximum zone order" if ARCH_SHMOBILE
range 11 64 if ARCH_SHMOBILE
default "12" if SOC_AM33XX
default "9" if SA1111
default "9" if SA1111 || ARCH_EFM32
default "11"
help
The kernel memory allocator divides physically contiguous memory

1
arch/arm/Makefile
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@ -153,6 +153,7 @@ machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
machine-$(CONFIG_ARCH_DAVINCI) += davinci
machine-$(CONFIG_ARCH_DOVE) += dove
machine-$(CONFIG_ARCH_EBSA110) += ebsa110
machine-$(CONFIG_ARCH_EFM32) += efm32
machine-$(CONFIG_ARCH_EP93XX) += ep93xx
machine-$(CONFIG_ARCH_EXYNOS) += exynos
machine-$(CONFIG_ARCH_GEMINI) += gemini

102
arch/arm/configs/efm32_defconfig Normal file
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@ -0,0 +1,102 @@
CONFIG_HIGH_RES_TIMERS=y
CONFIG_LOG_BUF_SHIFT=12
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_UID16 is not set
# CONFIG_BASE_FULL is not set
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
# CONFIG_EVENTFD is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_MMU is not set
CONFIG_ARCH_EFM32=y
# CONFIG_KUSER_HELPERS is not set
CONFIG_SET_MEM_PARAM=y
CONFIG_DRAM_BASE=0x88000000
CONFIG_DRAM_SIZE=0x00400000
CONFIG_FLASH_MEM_BASE=0x8c000000
CONFIG_FLASH_SIZE=0x01000000
CONFIG_PREEMPT=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_XIP_KERNEL=y
CONFIG_XIP_PHYS_ADDR=0x8c000000
CONFIG_BINFMT_FLAT=y
CONFIG_BINFMT_SHARED_FLAT=y
# CONFIG_COREDUMP is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_BLOCK_RO=y
CONFIG_MTD_ROM=y
CONFIG_MTD_UCLINUX=y
CONFIG_PROC_DEVICETREE=y
# CONFIG_BLK_DEV is not set
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_FARADAY is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_KS8851=y
# 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
# CONFIG_VT is not set
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_EFM32_UART=y
CONFIG_SERIAL_EFM32_UART_CONSOLE=y
# CONFIG_HW_RANDOM is not set
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_IOMMU_SUPPORT is not set
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_WARN_DEPRECATED is not set
# 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
arch/arm/mach-efm32/Makefile Normal file
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@ -0,0 +1 @@
obj-y += dtmachine.o

3
arch/arm/mach-efm32/Makefile.boot Normal file
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@ -0,0 +1,3 @@
# 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 .

15
arch/arm/mach-efm32/dtmachine.c Normal file
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@ -0,0 +1,15 @@
#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

4
arch/arm/mach-efm32/include/mach/entry-macro.S Normal file
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@ -0,0 +1,4 @@
/*
* Empty file waiting for deletion once <mach/entry-macro.S> isn't needed any
* more. Patch "ARM: v7-M: drop using mach/entry-macro.S" sitting in next.
*/

3
arch/arm/mach-efm32/include/mach/timex.h Normal file
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@ -0,0 +1,3 @@
/*
* Empty file waiting for deletion once <mach/timex.h> isn't needed any more.
*/