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authorJoachim Eastwood <manabian@gmail.com>2015-05-12 01:00:47 +0300
committerArnd Bergmann <arnd@arndb.de>2015-05-15 22:43:56 +0300
commite8d235d4d8fb8957bae5f6ed4521115203a00d8b (patch)
treee60031e922176c3650dab7999c9279198074a0d7
parent9b799b78372c925d3204567741e3ff8fe0cc1c7d (diff)
downloadlinux-e8d235d4d8fb8957bae5f6ed4521115203a00d8b.tar.xz
ARM: lpc18xx: add basic support for NXP LPC18xx/43xx SoCs
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>
-rw-r--r--arch/arm/Kconfig20
-rw-r--r--arch/arm/Kconfig.debug3
-rw-r--r--arch/arm/Makefile1
-rw-r--r--arch/arm/mach-lpc18xx/Makefile1
-rw-r--r--arch/arm/mach-lpc18xx/Makefile.boot3
-rw-r--r--arch/arm/mach-lpc18xx/board-dt.c22
6 files changed, 49 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 99544479ab01..16b47afb60f1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -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
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 7ed976a719b3..8e354a710d0b 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -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
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index d7af1922f56f..16bfd585585c 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..fdcee78d1bc4
--- /dev/null
+++ b/arch/arm/mach-lpc18xx/board-dt.c
@@ -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