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ARM: lpc18xx: add basic support for NXP LPC18xx/43xx SoCs

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Add support for NXP's LPC18xx (Cortex-M3) and LPC43xx (Cortex-M4)
SoCs. These SoCs are NXP's high preformance MCU line and can run at
clock speeds up to 180 MHz for LPC18xx and 204 MHz for LPC43xx.

LPC43xx is more or less a LPC18xx with a Cortex-M4F core and a few
extra peripherals. The LPC43xx series also features one or two
Cortex-M0 cores that can be used to offload the main M4 core.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Joachim Eastwood 2015-05-12 00:00:47 +02:00 committed by Arnd Bergmann
parent 9b799b7837
commit e8d235d4d8
6 changed files with 49 additions and 1 deletions
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20
arch/arm/Kconfig
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@ -586,6 +586,26 @@ config ARCH_W90X900
<http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
config ARCH_LPC18XX
bool "NXP LPC18xx/LPC43xx"
depends on !MMU
select ARCH_HAS_RESET_CONTROLLER
select ARCH_REQUIRE_GPIOLIB
select ARM_AMBA
select ARM_NVIC
select AUTO_ZRELADDR
select CLKSRC_LPC32XX
select COMMON_CLK
select CPU_V7M
select GENERIC_CLOCKEVENTS
select NO_IOPORT_MAP
select PINCTRL
select SPARSE_IRQ
select USE_OF
help
Support for NXP's LPC18xx Cortex-M3 and LPC43xx Cortex-M4
high performance microcontrollers.
config ARCH_LPC32XX
bool "NXP LPC32XX"
select ARCH_REQUIRE_GPIOLIB

3
arch/arm/Kconfig.debug
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@ -1368,6 +1368,7 @@ config DEBUG_UART_PHYS
default 0x20201000 if DEBUG_BCM2835
default 0x3e000000 if DEBUG_BCM_KONA_UART
default 0x4000e400 if DEBUG_LL_UART_EFM32
default 0x40081000 if ARCH_LPC18XX
default 0x40090000 if ARCH_LPC32XX
default 0x40100000 if DEBUG_PXA_UART1
default 0x42000000 if ARCH_GEMINI
@ -1574,7 +1575,7 @@ config UNCOMPRESS_INCLUDE
string
default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
PLAT_SAMSUNG || ARCH_EFM32 || \
ARCH_SHMOBILE_LEGACY
ARCH_SHMOBILE_LEGACY || ARCH_LPC18XX
default "mach/uncompress.h"
config EARLY_PRINTK

1
arch/arm/Makefile
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@ -167,6 +167,7 @@ machine-$(CONFIG_ARCH_IOP33X) += iop33x
machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
machine-$(CONFIG_ARCH_KEYSTONE) += keystone
machine-$(CONFIG_ARCH_KS8695) += ks8695
machine-$(CONFIG_ARCH_LPC18XX) += lpc18xx
machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
machine-$(CONFIG_ARCH_MESON) += meson
machine-$(CONFIG_ARCH_MMP) += mmp

1
arch/arm/mach-lpc18xx/Makefile Normal file
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@ -0,0 +1 @@
obj-y += board-dt.o

3
arch/arm/mach-lpc18xx/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 .

22
arch/arm/mach-lpc18xx/board-dt.c Normal file
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@ -0,0 +1,22 @@
/*
* Device Tree board file for NXP LPC18xx/43xx
*
* Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <asm/mach/arch.h>
static const char *const lpc18xx_43xx_compat[] __initconst = {
"nxp,lpc1850",
"nxp,lpc4350",
"nxp,lpc4370",
NULL
};
DT_MACHINE_START(LPC18XXDT, "NXP LPC18xx/43xx (Device Tree)")
.dt_compat = lpc18xx_43xx_compat,
MACHINE_END