sh: Add support shmin board

This adds support for the SHMIN SH7706 board(T-SH7706LAN).
The CPU of this board is SH7706.
There are SDRAM of 32M byte, Flash memory of 512K byte, Serial,
10Base Ether and MMC.

http://web.kyoto-inet.or.jp/people/takagaki/T-SH7706/T-SH7706.htm

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

7 files changed, 337 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 553930a..d7cd09c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1011,6 +1011,7 @@ Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
 	SH7763RDP	SH7763
 	RSK7203		SH7203
 	AP325RXA	SH7723
+	SHMIN		SH7706
 
 Mark Jonas <mark.jonas@de.bosch.com>
 
diff --git a/board/shmin/Makefile b/board/shmin/Makefile
new file mode 100644
index 0000000..be04e2c
--- /dev/null
+++ b/board/shmin/Makefile
@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2010 Nobuhiro Iwamatsu
+# Copyright (C) 2008 Renesas Solutions Corp.
+#
+# u-boot/board/shmin/Makefile
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= shmin.o
+SOBJS	:= lowlevel_init.o
+
+LIB	:= $(addprefix $(obj),$(LIB))
+OBJS	:= $(addprefix $(obj),$(OBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/shmin/config.mk b/board/shmin/config.mk
new file mode 100644
index 0000000..eca20d4
--- /dev/null
+++ b/board/shmin/config.mk
@@ -0,0 +1,27 @@
+#
+# Copyright (C) 2010 Nobuhiro Iwamatsu
+#
+# u-boot/board/shmin/config.mk
+#
+# 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
+
+#
+# TEXT_BASE refers to image _after_ relocation.
+#
+# NOTE: Must match value used in u-boot.lds (in this directory).
+#
+
+CONFIG_SYS_TEXT_BASE = 0x8DFC0000
diff --git a/board/shmin/lowlevel_init.S b/board/shmin/lowlevel_init.S
new file mode 100644
index 0000000..b29da35
--- /dev/null
+++ b/board/shmin/lowlevel_init.S
@@ -0,0 +1,36 @@
+/*
+ * (C) Copyright 2008, 2010 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * 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 <config.h>
+#include <version.h>
+
+#include <asm/processor.h>
+#include <asm/macro.h>
+
+
+	.global	lowlevel_init
+
+	.text
+	.align	2
+
+lowlevel_init:
+	/* Use setting of original bootloader */
+	rts
+	nop
+	.align 2
diff --git a/board/shmin/shmin.c b/board/shmin/shmin.c
new file mode 100644
index 0000000..8742f10
--- /dev/null
+++ b/board/shmin/shmin.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2007 - 2010
+ *     Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ * (C) Copyright 2000-2003
+ *     Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * board/shmin/shmin.c
+ *
+ * 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
+ *
+ * Copy board_flash_get_legacy() from board/freescale/m54455evb/m54455evb.c
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+int checkboard(void)
+{
+	puts("BOARD: T-SH7706LAN ");
+	if(readb(0xb0008006) == 0xab)
+		puts("v2\n");
+	else
+		puts("v1\n");
+	return 0;
+}
+
+int board_init(void)
+{
+	writew(0x2980, BCR2);
+	return 0;
+}
+
+int dram_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+	printf("DRAM:  %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
+	return 0;
+}
+
+void led_set_state(unsigned short value)
+{
+
+}
+
+#if defined(CONFIG_FLASH_CFI_LEGACY)
+#include <flash.h>
+ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
+{
+	int sect[] = CONFIG_SYS_ATMEL_SECT;
+	int sectsz[] = CONFIG_SYS_ATMEL_SECTSZ;
+		int i, j, k;
+
+	if (base != CONFIG_SYS_ATMEL_BASE)
+		return 0;
+
+	info->flash_id			= 0x01000000;
+	info->portwidth			= 1;
+	info->chipwidth			= 1;
+	info->buffer_size		= 1;
+	info->erase_blk_tout	= 16384;
+	info->write_tout		= 2;
+	info->buffer_write_tout	= 5;
+	info->vendor			= 0xFFF0; /* CFI_CMDSET_AMD_LEGACY */
+	info->cmd_reset			= 0x00F0;
+	info->interface			= FLASH_CFI_X8;
+	info->legacy_unlock		= 0;
+	info->manufacturer_id	= (u16) ATM_MANUFACT;
+	info->device_id			= ATM_ID_LV040;
+	info->device_id2		= 0;
+	info->ext_addr			= 0;
+	info->cfi_version		= 0x3133;
+	info->cfi_offset		= 0x0000;
+	info->addr_unlock1		= 0x00000555;
+	info->addr_unlock2		= 0x000002AA;
+	info->name				= "CFI conformant";
+	info->size				= 0;
+	info->sector_count		= CONFIG_SYS_ATMEL_TOTALSECT;
+	info->start[0] = base;
+
+	for (k = 0, i = 0; i < CONFIG_SYS_ATMEL_REGION; i++) {
+		info->size += sect[i] * sectsz[i];
+		for (j = 0; j < sect[i]; j++, k++) {
+			info->start[k + 1] = info->start[k] + sectsz[i];
+			info->protect[k] = 0;
+		}
+	}
+
+	return 1;
+}
+#endif /* CONFIG_FLASH_CFI_LEGACY */
diff --git a/boards.cfg b/boards.cfg
index 94b8745..0574bb2 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -745,6 +745,7 @@ xilinx-ppc440-generic_flash  powerpc     ppc4xx      ppc440-generic      xilinx
 rsk7203                      sh          sh2         rsk7203             renesas        -
 mpr2                         sh          sh3         mpr2                -              -
 ms7720se                     sh          sh3         ms7720se            -              -
+shmin                        sh          sh3         shmin               -              -
 espt                         sh          sh4         espt                -              -
 ms7722se                     sh          sh4         ms7722se            -              -
 ms7750se                     sh          sh4         ms7750se            -              -
diff --git a/include/configs/shmin.h b/include/configs/shmin.h
new file mode 100644
index 0000000..42d6fe2
--- /dev/null
+++ b/include/configs/shmin.h
@@ -0,0 +1,115 @@
+/*
+ * Configuation settings for shmin (T-SH7706LAN)
+ *
+ * Copyright (C) 2010 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * 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
+ */
+
+#ifndef __SHMIN_H
+#define __SHMIN_H
+
+#define CONFIG_SH		1
+#define CONFIG_SH3		1
+#define CONFIG_CPU_SH7706	1
+#define CONFIG_SHMIN		1
+
+#define CONFIG_CMD_FLASH
+#define CONFIG_CMD_MEMORY
+#define CONFIG_CMD_SDRAM
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_ENV
+#define CONFIG_CMD_SAVEENV
+
+#define CONFIG_BAUDRATE		115200
+#define CONFIG_BOOTARGS		"console=ttySC0,115200"
+
+/* 
+ * This board has original boot loader. If you write u-boot to 0x0,
+ * you should set undef.
+ */
+#define CONFIG_VERSION_VARIABLE
+#undef  CONFIG_SHOW_BOOT_PROGRESS
+
+/* system */
+#define SHMIN_SDRAM_BASE		(0x8C000000)
+#define SHMIN_FLASH_BASE_1		(0xA0000000)
+
+#define CONFIG_SYS_LONGHELP		/* undef to save memory	*/
+#define CONFIG_SYS_PROMPT	"=> "	/* Monitor Command Prompt */
+#define CONFIG_SYS_CBSIZE	256	/* Buffer size for input from the Console */
+#define CONFIG_SYS_PBSIZE	256	/* Buffer size for Console output */
+#define CONFIG_SYS_MAXARGS	16	/* max args accepted for monitor commands */
+/* Buffer size for Boot Arguments passed to kernel */
+#define CONFIG_SYS_BARGSIZE	512
+/* List of legal baudrate settings for this board */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 115200 }
+
+/* SCIF */
+#define CONFIG_SCIF_CONSOLE	1
+#define CONFIG_CONS_SCIF0	1
+
+/* memory */
+#define CONFIG_SYS_SDRAM_BASE		SHMIN_SDRAM_BASE
+#define CONFIG_SYS_SDRAM_SIZE		(32 * 1024 * 1024)
+#define CONFIG_SYS_MEMTEST_START	SHMIN_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + CONFIG_SYS_SDRAM_SIZE - (256 * 1024))
+
+#define CONFIG_SYS_LOAD_ADDR		(CONFIG_SYS_SDRAM_BASE + 1 * 1024 * 1024)
+#define CONFIG_SYS_MONITOR_BASE		(SHMIN_FLASH_BASE_1 + CONFIG_ENV_SECT_SIZE)
+#define CONFIG_SYS_MONITOR_LEN		(128 * 1024)
+#define CONFIG_SYS_MALLOC_LEN		(256 * 1024)
+#define CONFIG_SYS_GBL_DATA_SIZE	256
+#define CONFIG_SYS_BOOTMAPSZ		(8 * 1024 * 1024)
+
+/* FLASH */
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_FLASH_CFI_DRIVER
+#undef  CONFIG_SYS_FLASH_QUIET_TEST
+#define CONFIG_SYS_FLASH_EMPTY_INFO	/* print 'E' for empty sector on flinfo */
+#define CONFIG_SYS_FLASH_BASE		SHMIN_FLASH_BASE_1
+#define CONFIG_SYS_MAX_FLASH_SECT 11
+#define CONFIG_SYS_MAX_FLASH_BANKS	1
+
+#define CONFIG_FLASH_CFI_LEGACY
+#define CONFIG_SYS_ATMEL_BASE		CONFIG_SYS_FLASH_BASE
+#define CONFIG_SYS_ATMEL_TOTALSECT	CONFIG_SYS_MAX_FLASH_SECT
+#define CONFIG_SYS_ATMEL_REGION		4
+#define CONFIG_SYS_ATMEL_SECT		{1, 2, 1, 7}
+#define CONFIG_SYS_ATMEL_SECTSZ		{0x4000, 0x2000, 0x8000, 0x10000}
+
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_SECT_SIZE	(64 * 1024)
+#define CONFIG_ENV_SIZE		CONFIG_ENV_SECT_SIZE
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)
+#define CONFIG_SYS_FLASH_ERASE_TOUT	120000
+#define CONFIG_SYS_FLASH_WRITE_TOUT	500
+
+/* Board Clock */
+#define CONFIG_SYS_CLK_FREQ 33333333
+#define CONFIG_SYS_TMU_CLK_DIV	4
+#define CONFIG_SYS_HZ	1000
+
+/* Network device */
+#define CONFIG_DRIVER_NE2000
+#define CONFIG_DRIVER_NE2000_BASE   (0xb0000300)
+
+#endif	/* __SHMIN_H */