From mboxrd@z Thu Jan 1 00:00:00 1970 From: manabian@gmail.com (Joachim Eastwood) Date: Wed, 1 Apr 2015 23:20:38 +0200 Subject: [PATCH 1/6] ARM: lpc18xx: add basic support for NXP LPC18xx/43xx SoCs In-Reply-To: <1427923243-26296-1-git-send-email-manabian@gmail.com> References: <1427923243-26296-1-git-send-email-manabian@gmail.com> Message-ID: <1427923243-26296-2-git-send-email-manabian@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- arch/arm/Kconfig | 20 ++++++++++++++++++++ arch/arm/Kconfig.debug | 8 +++++--- arch/arm/Makefile | 1 + arch/arm/mach-lpc18xx/Makefile | 1 + arch/arm/mach-lpc18xx/Makefile.boot | 3 +++ arch/arm/mach-lpc18xx/board-dt.c | 24 ++++++++++++++++++++++++ 6 files changed, 54 insertions(+), 3 deletions(-) create mode 100644 arch/arm/mach-lpc18xx/Makefile create mode 100644 arch/arm/mach-lpc18xx/Makefile.boot create mode 100644 arch/arm/mach-lpc18xx/board-dt.c diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index cf4c0c99aa25..056921e6fccb 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -593,6 +593,26 @@ config ARCH_W90X900 +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_OF + 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 diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 970de7518341..348adb414a66 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1329,8 +1329,9 @@ config DEBUG_UART_8250 def_bool ARCH_DOVE || ARCH_EBSA110 || \ (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \ ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \ - ARCH_IOP33X || ARCH_IXP4XX || \ - ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC + ARCH_IOP33X || ARCH_IXP4XX || ARCH_LPC18XX || \ + ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || \ + ARCH_RPC # Compatibility options for BCM63xx config DEBUG_UART_BCM63XX @@ -1371,6 +1372,7 @@ 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 @@ -1573,7 +1575,7 @@ config DEBUG_UNCOMPRESS config UNCOMPRESS_INCLUDE string default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ - PLAT_SAMSUNG || ARCH_EFM32 + PLAT_SAMSUNG || ARCH_EFM32 || ARCH_LPC18XX default "mach/uncompress.h" config EARLY_PRINTK diff --git a/arch/arm/Makefile b/arch/arm/Makefile index eb7bb511f853..0bf3fe30ac5e 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -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 diff --git a/arch/arm/mach-lpc18xx/Makefile b/arch/arm/mach-lpc18xx/Makefile new file mode 100644 index 000000000000..bd0b7b5d6e9d --- /dev/null +++ b/arch/arm/mach-lpc18xx/Makefile @@ -0,0 +1 @@ +obj-y += board-dt.o diff --git a/arch/arm/mach-lpc18xx/Makefile.boot b/arch/arm/mach-lpc18xx/Makefile.boot new file mode 100644 index 000000000000..eacfc3f5c33e --- /dev/null +++ b/arch/arm/mach-lpc18xx/Makefile.boot @@ -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 . diff --git a/arch/arm/mach-lpc18xx/board-dt.c b/arch/arm/mach-lpc18xx/board-dt.c new file mode 100644 index 000000000000..082881aab49d --- /dev/null +++ b/arch/arm/mach-lpc18xx/board-dt.c @@ -0,0 +1,24 @@ +/* + * Device Tree board file for NXP LPC18xx/43xx + * + * Copyright (C) 2015 Joachim Eastwood + * + * 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 + +#include +#include + +static const char *const lpc18xx_43xx_compat[] __initconst = { + "ea,lpc4357-developers-kit", + NULL +}; + +DT_MACHINE_START(LPC18XXDT, "NXP LPC18xx/43xx (Device Tree Support)") + .dt_compat = lpc18xx_43xx_compat, + .restart = armv7m_restart, +MACHINE_END -- 1.8.0