RT72064. stm3220g-eval: the very basic port

Stubs for stm3220g-eval port.

Signed-off-by: Yuri Tikhonov <yur@emcraft.com>

Makefile

@@ -3200,6 +3200,9 @@ a2f-hoermann-brd_config :  unconfig
 	@$(MKCONFIG) $(@:_config=) arm arm_cortexm3 a2f-hoermann-brd \
 	hoermann a2f
 
+stm3220g-eval_config : unconfig
+	@$(MKCONFIG) $(@:_config=) arm arm_cortexm3 stm3220g-eval stm stm32f2
+
 #########################################################################
 ## XScale Systems
 #########################################################################

board/stm/stm3220g-eval/Makefile

+#
+# (C) Copyright 2011
+#
+# Yuri Tikhonov, Emcraft Systems, yur@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/stm/stm3220g-eval/board.c

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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 STMicroelectronic STM3220G-EVAL 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: STM3220G-EVAL board %s\n",
+		CONFIG_SYS_BOARD_REV_STR);
+
+	return 0;
+}
+
+/*
+ * Configure board specific parts.
+ */
+int misc_init_r(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+/*
+ * Setup dynamic RAM.
+ */
+int dram_init(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}

cpu/arm_cortexm3/cpu.c

@@ -52,6 +52,8 @@ int arch_cpu_init(void)
 	 */
 #if defined(CONFIG_SYS_A2F)
 	gd->bd->bi_arch_number = MACH_TYPE_A2F;
+#elif defined(CONFIG_SYS_STM32F2)
+	gd->bd->bi_arch_number = MACH_TYPE_STM32F2;
 #else
 # error "Unknown Cortex-M3 SOC."
 #endif

cpu/arm_cortexm3/stm32f2/Makefile

+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2011
+# Port to STM32F2
+# Yuri Tikhonov, Emcraft Systems, yur@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 timer.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/stm32f2/clock.c

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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"
+
+/*
+ * Initialize the reference clocks.
+ */
+void clock_init(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}

cpu/arm_cortexm3/stm32f2/cpu.c

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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>
+
+/*
+ * Print the CPU specific information
+ */
+int print_cpuinfo(void)
+{
+	printf("CPU: %s\n", "STM32 F2 series (Cortex-M3)");
+
+	return 0;
+}
+
+/*
+ * Perform the low-level reset.
+ * Note that we need for this function to reside in RAM since it
+ * will be used to self-upgrade U-boot in eNMV.
+ */
+void __attribute__((section(".ramcode")))
+		__attribute__ ((long_call))
+		reset_cpu(ulong addr)
+{
+	/*
+	 * TBD
+	 */
+
+	return;
+}
+
+/*
+ * Dump the registers on an exception we don't know how to process.
+ */
+unsigned char cortex_m3_irq_vec_get(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}

cpu/arm_cortexm3/stm32f2/envm.c

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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/stm32f2/timer.c

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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>
+
+/*
+ * Init timer.
+ */
+int timer_init(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+/*
+ * Return difference between timer ticks and 'base'.
+ */
+unsigned long get_timer(unsigned long base)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+/*
+ * Reset timer.
+ */
+void reset_timer(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+/*
+ * Delay for 'usec' useconds.
+ */
+void __udelay(unsigned long usec)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On ARM it returns the number of timer ticks per second.
+ */
+unsigned long get_tbclk(void)
+{
+	/*
+	 * TBD
+	 */
+
+	return 0;
+}

cpu/arm_cortexm3/stm32f2/wdt.c

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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

@@ -28,6 +28,7 @@ LIB	:= $(obj)libserial.a
 COBJS-$(CONFIG_ARM_DCC) += arm_dcc.o
 COBJS-$(CONFIG_AT91RM9200_USART) += at91rm9200_usart.o
 COBJS-$(CONFIG_ATMEL_USART) += atmel_usart.o
+COBJS-$(CONFIG_STM32F2_USART) += stm32f2_usart.o
 COBJS-$(CONFIG_MCFUART) += mcfuart.o
 COBJS-$(CONFIG_NS9750_UART) += ns9750_serial.o
 COBJS-$(CONFIG_SYS_NS16550) += ns16550.o

drivers/serial/stm32f2_usart.c

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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
+ */
+
+/*
+ * STM32 F2 USART 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/mach-types.h

@@ -2700,6 +2700,7 @@ extern unsigned int __machine_arch_type;
 #define MACH_TYPE_IGEP0030             2717
 #define MACH_TYPE_AXELL_H40_H50_CTRL   2718
 #define MACH_TYPE_A2F                  3344
+#define MACH_TYPE_STM32F2              3345
 #ifdef CONFIG_ARCH_EBSA110
 # ifdef machine_arch_type

include/common.h

@@ -462,7 +462,7 @@ int	checkdcache   (void);
 void	upmconfig     (unsigned int, unsigned int *, unsigned int);
 ulong	get_tbclk     (void);
 void
-#if defined(CONFIG_SYS_A2F)
+#if defined(CONFIG_SYS_A2F) || defined(CONFIG_SYS_STM32F2)
 	__attribute__((section(".ramcode")))
 	__attribute__ ((long_call))
 #endif

include/configs/stm3220g-eval.h

+/*
+ * (C) Copyright 2011
+ *
+ * Yuri Tikhonov, Emcraft Systems, yur@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.
+ *
+