RT73025. ea-lpc1788: the very basic port

Stubs for ea-lpc1788 port.

Makefile

@@ -3203,6 +3203,9 @@ a2f-hoermann-brd_config :  unconfig
 stm3220g-eval_config : unconfig
 	@$(MKCONFIG) $(@:_config=) arm arm_cortexm3 stm3220g-eval stm stm32
 
+ea-lpc1788_config : unconfig
+	@$(MKCONFIG) $(@:_config=) arm arm_cortexm3 ea-lpc1788 nxp lpc178x
+
 #########################################################################
 ## XScale Systems
 #########################################################################

board/nxp/ea-lpc1788/Makefile

+#
+# (C) Copyright 2011
+#
+# Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS	:= board.o
+
+SRCS	:= $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+	rm -f $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend

board/nxp/ea-lpc1788/board.c

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Board specific code for the Embedded Artists LPC1788 board
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Early hardware init.
+ */
+int board_init(void)
+{
+	/* TBD */
+	return 0;
+}
+
+/*
+ * Dump pertinent info to the console.
+ */
+int checkboard(void)
+{
+	printf("Board: EA-LPC1788 board %s\n",
+		CONFIG_SYS_BOARD_REV_STR);
+
+	return 0;
+}
+
+/*
+ * Configure board specific parts.
+ */
+int misc_init_r(void)
+{
+	/* TBD */
+	return 0;
+}
+
+/*
+ * Setup external RAM.
+ */
+int dram_init(void)
+{
+	/* TBD */
+	return 0;
+}
+

cpu/arm_cortexm3/cpu.c

@@ -54,6 +54,8 @@ int arch_cpu_init(void)
 	gd->bd->bi_arch_number = MACH_TYPE_A2F;
 #elif defined(CONFIG_SYS_STM32)
 	gd->bd->bi_arch_number = MACH_TYPE_STM32;
+#elif defined(CONFIG_SYS_LPC178X)
+	gd->bd->bi_arch_number = MACH_TYPE_LPC178X;
 #else
 # error "Unsupported Cortex-M3 SOC."
 #endif

cpu/arm_cortexm3/lpc178x/Makefile

+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2011
+# Port to EA-LPC1788
+# Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(SOC).a
+
+COBJS	:= clock.o cpu.o envm.o wdt.o
+SOBJS	:=
+
+SRCS	:= $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

cpu/arm_cortexm3/lpc178x/clock.c

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#include "clock.h"
+
+/*
+ * Clock values
+ */
+static u32 clock_val[CLOCK_END];
+
+/*
+ * Initialize the reference clocks.
+ */
+void clock_init(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}
+
+/*
+ * Return a clock value for the specified clock.
+ * Note that we need this function in RAM because it will be used
+ * during self-upgrade of U-boot into eNMV.
+ * @param clck          id of the clock
+ * @returns             frequency of the clock
+ */
+unsigned long  __attribute__((section(".ramcode")))
+	       __attribute__ ((long_call))
+	       clock_get(enum clock clck)
+{
+	return clock_val[clck];
+}

cpu/arm_cortexm3/lpc178x/cpu.c

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#include <asm/arch/lpc178x.h>
+#include "clock.h"
+
+/*
+ * Print the CPU specific information
+ */
+int print_cpuinfo(void)
+{
+	printf("CPU  : %s\n", "LPC178x/7x series (Cortex-M3)");
+
+	return 0;
+}

cpu/arm_cortexm3/lpc178x/envm.c

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#include "envm.h"
+
+/*
+ * Initialize internal Flash interface
+ */
+void envm_init(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}
+
+/*
+ * Write a data buffer to internal Flash.
+ * Note that we need for this function to reside in RAM since it
+ * will be used to self-upgrade U-boot in internal Flash.
+ */
+unsigned int __attribute__((section(".ramcode")))
+	     __attribute__ ((long_call))
+  envm_write(unsigned int offset, void * buf, unsigned int size)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}

cpu/arm_cortexm3/lpc178x/wdt.c

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#include "wdt.h"
+
+/*
+ * Strobe the WDT.
+ */
+void wdt_strobe(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}
+
+/*
+ * Disable the WDT.
+ */
+void wdt_disable(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}
+
+/*
+ * Enable the WDT.
+ */
+void wdt_enable(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}

drivers/serial/Makefile

@@ -53,6 +53,7 @@ COBJS-$(CONFIG_S3C44B0_SERIAL) += serial_s3c44b0.o
 COBJS-$(CONFIG_XILINX_UARTLITE) += serial_xuartlite.o
 COBJS-$(CONFIG_SCIF_CONSOLE) += serial_sh.o
 COBJS-$(CONFIG_STM32_USART_CONSOLE) += stm32_usart.o
+COBJS-$(CONFIG_LPC178X_UART_CONSOLE) += lpc178x_uart.o
 COBJS-$(CONFIG_USB_TTY) += usbtty.o
 
 COBJS	:= $(sort $(COBJS-y))

drivers/serial/lpc178x_uart.c

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * EA-LPC178X UART driver
+ */
+
+#include <common.h>
+
+/*
+ * Initialize the serial port.
+ */
+int serial_init(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+/*
+ * Set new baudrate.
+ */
+void serial_setbrg(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}
+
+/*
+ * Read a single character from the serial port.
+ */
+int serial_getc(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+/*
+ * Put a single character to the serial port.
+ */
+void serial_putc(const char c)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}
+
+/*
+ * Put a string ('\0'-terminated) to the serial port.
+ */
+void serial_puts(const char *s)
+{
+	while (*s)
+		serial_putc(*s++);
+}
+
+/*
+ * Test whether a character in in the RX buffer.
+ */
+int serial_tstc(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+

include/asm-arm/arch-lpc178x/lpc178x.h

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * LPC178X processor definitions
+ */
+#ifndef _MACH_LPC178X_H_
+#define _MACH_LPC178X_H_
+
+/*
+ * Clocks enumeration
+ */
+enum clock {
+	CLOCK_SYSTICK,		/* Systimer clock frequency expressed in Hz   */
+	CLOCK_END		/* for internal usage			      */
+};
+
+/******************************************************************************
+ * FIXME: get rid of this
+ ******************************************************************************/
+
+/*
+ * Return a clock value for the specified clock.
+ * Note that we need this function in RAM because it will be used
+ * during self-upgrade of U-boot into eNMV.
+ * @param clck          id of the clock
+ * @returns             frequency of the clock
+ */
+unsigned long  __attribute__((section(".ramcode")))
+	       __attribute__ ((long_call))
+	       clock_get(enum clock clck);
+
+#endif /* _MACH_LPC178X_H_ */

include/asm-arm/mach-types.h

@@ -2701,6 +2701,7 @@ extern unsigned int __machine_arch_type;
 #define MACH_TYPE_AXELL_H40_H50_CTRL   2718
 #define MACH_TYPE_A2F                  3344
 #define MACH_TYPE_STM32                3750
+#define MACH_TYPE_LPC178X              3855
 #ifdef CONFIG_ARCH_EBSA110
 # ifdef machine_arch_type

include/common.h

@@ -119,6 +119,9 @@ typedef volatile unsigned char	vu_char;
 #ifdef CONFIG_SYS_STM32
 #include <asm/arch-stm32/stm32.h>
 #endif
+#ifdef CONFIG_SYS_LPC178X
+#include <asm/arch-lpc178x/lpc178x.h>
+#endif
 
 #include <part.h>
 #include <flash.h>
@@ -468,7 +471,8 @@ int	checkdcache   (void);
 void	upmconfig     (unsigned int, unsigned int *, unsigned int);
 ulong	get_tbclk     (void);
 void
-#if defined(CONFIG_SYS_A2F) || defined(CONFIG_SYS_STM32)
+#if defined(CONFIG_SYS_A2F) || defined(CONFIG_SYS_STM32) || \
+    defined(CONFIG_SYS_LPC178X)
 	__attribute__((section(".ramcode")))
 	__attribute__ ((long_call))
 #endif

include/configs/ea-lpc1788.h

+/*
+ * (C) Copyright 2011
+ *
+ * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Configuration settings for the Embedded Artists LPC1788 board.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * Disable debug messages
+ */
+#undef DEBUG
+
+/*
+ * This is an ARM Cortex-M3 CPU core
+ */
+#define CONFIG_SYS_ARMCORTEXM3
+
+/*
+ * This is the EA LPC1788 device
+ */
+#define CONFIG_SYS_LPC178X
+
+/*
+ * Enable GPIO driver