devkit3250: add Timll DevKit3250 board initial support

This change adds a basic support for Embest/Timll DevKit3250 board,
NOR and UART are the only supported peripherals for a moment. The board
doesn't require low-level init, because the initial SDRAM and GPIO
configuration is performed during kickstart bootloader execution.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Marek Vasut <marek.vasut@gmail.com>

5 files changed, 231 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index e2441d8d31..4ede19befc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -932,6 +932,10 @@ Sughosh Ganu <urwithsughosh@gmail.com>
 
 	hawkboard	ARM926EJS (OMAP-L138)
 
+Vladimir Zapolskiy <vz@mleia.com>
+
+	devkit3250	lpc32xx
+
 -------------------------------------------------------------------------
 
 Unknown / orphaned boards:
diff --git a/board/timll/devkit3250/Makefile b/board/timll/devkit3250/Makefile
new file mode 100644
index 0000000000..ea7827c80d
--- /dev/null
+++ b/board/timll/devkit3250/Makefile
@@ -0,0 +1,44 @@
+#
+# Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
+# Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de>
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA  02110-1301, USA.
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	:= devkit3250.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/timll/devkit3250/devkit3250.c b/board/timll/devkit3250/devkit3250.c
new file mode 100644
index 0000000000..6b0ec80fcd
--- /dev/null
+++ b/board/timll/devkit3250/devkit3250.c
@@ -0,0 +1,65 @@
+/*
+ * Embest/Timll DevKit3250 board support
+ *
+ * Copyright (C) 2011 Vladimir Zapolskiy <vz@mleia.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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include <common.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/emc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct emc_regs *emc = (struct emc_regs *)EMC_BASE;
+
+int board_early_init_f(void)
+{
+	lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params  = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_SYS_FLASH_CFI
+	/* Use 16-bit memory interface for NOR Flash */
+	emc->stat[0].config	= EMC_STAT_CONFIG_PB | EMC_STAT_CONFIG_16BIT;
+
+	/* Change the NOR timings to optimum value to get maximum bandwidth */
+	emc->stat[0].waitwen	= EMC_STAT_WAITWEN(1);
+	emc->stat[0].waitoen	= EMC_STAT_WAITOEN(1);
+	emc->stat[0].waitrd	= EMC_STAT_WAITRD(12);
+	emc->stat[0].waitpage	= EMC_STAT_WAITPAGE(12);
+	emc->stat[0].waitwr	= EMC_STAT_WAITWR(5);
+	emc->stat[0].waitturn	= EMC_STAT_WAITTURN(2);
+#endif
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+
+	return 0;
+}
diff --git a/boards.cfg b/boards.cfg
index 5f328b586d..9460c38572 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -154,6 +154,7 @@ openrd_ultimate              arm         arm926ejs   openrd              Marvell
 rd6281a                      arm         arm926ejs   -                   Marvell        kirkwood
 sheevaplug                   arm         arm926ejs   -                   Marvell        kirkwood
 dockstar                     arm         arm926ejs   -                   Seagate        kirkwood
+devkit3250                   arm         arm926ejs   devkit3250          timll          lpc32xx
 jadecpu                      arm         arm926ejs   jadecpu             syteco         mb86r0x
 mx25pdk                      arm         arm926ejs   mx25pdk             freescale      mx25		mx25pdk:IMX_CONFIG=board/freescale/mx25pdk/imximage.cfg
 tx25                         arm         arm926ejs   tx25                karo           mx25
diff --git a/include/configs/devkit3250.h b/include/configs/devkit3250.h
new file mode 100644
index 0000000000..9f15ffb0fd
--- /dev/null
+++ b/include/configs/devkit3250.h
@@ -0,0 +1,117 @@
+/*
+ * Embest/Timll DevKit3250 board configuration file
+ *
+ * Copyright (C) 2011 Vladimir Zapolskiy <vz@mleia.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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#ifndef __CONFIG_DEVKIT3250_H__
+#define __CONFIG_DEVKIT3250_H__
+
+/* SoC and board defines */
+#include <asm/sizes.h>
+#include <asm/arch/cpu.h>
+
+/*
+ * Define DevKit3250 machine type by hand until it lands in mach-types
+ */
+#define MACH_TYPE_DEVKIT3250		3697
+#define CONFIG_MACH_TYPE		MACH_TYPE_DEVKIT3250
+
+#define CONFIG_SYS_ICACHE_OFF
+#define CONFIG_SYS_DCACHE_OFF
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_BOARD_EARLY_INIT_F
+
+/*
+ * Memory configurations
+ */
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_STACKSIZE		SZ_32K
+#define CONFIG_SYS_MALLOC_LEN		SZ_1M
+#define CONFIG_SYS_GBL_DATA_SIZE	128
+#define CONFIG_SYS_SDRAM_BASE		EMC_DYCS0_BASE
+#define CONFIG_SYS_SDRAM_SIZE		SZ_64M
+#define CONFIG_SYS_TEXT_BASE		0x83FA0000
+#define CONFIG_SYS_MEMTEST_START	(CONFIG_SYS_SDRAM_BASE + SZ_32K)
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_TEXT_BASE - SZ_1M)
+
+#define CONFIG_SYS_LOAD_ADDR		(CONFIG_SYS_SDRAM_BASE + SZ_32K)
+
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_SDRAM_BASE + SZ_4K \
+					 - GENERATED_GBL_DATA_SIZE)
+
+/*
+ * Serial Driver
+ */
+#define CONFIG_SYS_LPC32XX_UART		2   /* UART2 */
+#define CONFIG_BAUDRATE			115200
+
+/*
+ * NOR Flash
+ */
+#define CONFIG_CMD_FLASH
+#define CONFIG_SYS_MAX_FLASH_BANKS	1
+#define CONFIG_SYS_MAX_FLASH_SECT	71
+#define CONFIG_SYS_FLASH_BASE		EMC_CS0_BASE
+#define CONFIG_SYS_FLASH_SIZE		SZ_4M
+#define CONFIG_SYS_FLASH_CFI
+
+/*
+ * U-Boot General Configurations
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT		"=> "
+#define CONFIG_SYS_CBSIZE		1024
+#define CONFIG_SYS_PBSIZE		\
+	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_MAXARGS		16
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_VERSION_VARIABLE
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DOS_PARTITION
+
+#define CONFIG_ENV_IS_NOWHERE
+#define CONFIG_ENV_SIZE			SZ_128K
+
+/*
+ * U-Boot Commands
+ */
+#include <config_cmd_default.h>
+#define CONFIG_CMD_CACHE
+
+/*
+ * Boot Linux
+ */
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_ZERO_BOOTDELAY_CHECK
+#define CONFIG_BOOTDELAY		3
+
+#define CONFIG_BOOTFILE			"uImage"
+#define CONFIG_BOOTARGS			"console=ttyS2,115200n8"
+#define CONFIG_LOADADDR			0x80008000
+
+/*
+ * Include SoC specific configuration
+ */
+#include <asm/arch/config.h>
+
+#endif  /* __CONFIG_DEVKIT3250_H__*/