Patchwork [U-Boot,v2] sh: Add support for AP-SH4A-4A board

login
register
mail settings
Submitter Nobuhiro Iwamatsu
Date May 16, 2012, 12:58 a.m.
Message ID <1337129936-3938-1-git-send-email-nobuhiro.iwamatsu.yj@renesas.com>
Download mbox | patch
Permalink /patch/159482/
State Accepted
Commit bfc93fb47d41c1aa0831469eabaf88afe7f99db1
Headers show

Comments

Nobuhiro Iwamatsu - May 16, 2012, 12:58 a.m.
The AP-SH4A-4A board has SH7734, 64MB DDR2-SDRAM, USB,
Ethernet, and more.

This patch supports the following functions:
  - 64MB DDR2-SDRAM
  - 16MB NOR Flash memory
  - Serial console (SCIF)
  - Ethernet (SH-Ether with Gigabit)
  - I2C

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
---
 V2: Fix inital value of BSC.

 MAINTAINERS                                   |    1 +
 board/alphaproject/ap_sh4a_4a/Makefile        |   40 +++
 board/alphaproject/ap_sh4a_4a/ap_sh4a_4a.c    |  195 +++++++++++
 board/alphaproject/ap_sh4a_4a/lowlevel_init.S |  459 +++++++++++++++++++++++++
 boards.cfg                                    |    1 +
 include/configs/ap_sh4a_4a.h                  |  176 ++++++++++
 6 files changed, 872 insertions(+)
 create mode 100644 board/alphaproject/ap_sh4a_4a/Makefile
 create mode 100644 board/alphaproject/ap_sh4a_4a/ap_sh4a_4a.c
 create mode 100644 board/alphaproject/ap_sh4a_4a/lowlevel_init.S
 create mode 100644 include/configs/ap_sh4a_4a.h

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 4501b7e..2ed4152 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1091,6 +1091,7 @@  Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
 	SHMIN		SH7706
 	ECOVEC		SH7724
 	R0P7734     SH7734
+	AP_SH4A_4A  SH7734
 
 Mark Jonas <mark.jonas@de.bosch.com>
 
diff --git a/board/alphaproject/ap_sh4a_4a/Makefile b/board/alphaproject/ap_sh4a_4a/Makefile
new file mode 100644
index 0000000..0008c25
--- /dev/null
+++ b/board/alphaproject/ap_sh4a_4a/Makefile
@@ -0,0 +1,40 @@ 
+#
+# Copyright (C) 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.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 $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	:= ap_sh4a_4a.o
+SOBJS	:= lowlevel_init.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/alphaproject/ap_sh4a_4a/ap_sh4a_4a.c b/board/alphaproject/ap_sh4a_4a/ap_sh4a_4a.c
new file mode 100644
index 0000000..85184a8
--- /dev/null
+++ b/board/alphaproject/ap_sh4a_4a/ap_sh4a_4a.c
@@ -0,0 +1,195 @@ 
+/*
+ * Copyright (C) 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * 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.
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <netdev.h>
+#include <i2c.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MODEMR			(0xFFCC0020)
+#define MODEMR_MASK		(0x6)
+#define MODEMR_533MHZ	(0x2)
+
+int checkboard(void)
+{
+	u32 r = readl(MODEMR);
+	if ((r & MODEMR_MASK) & MODEMR_533MHZ)
+		puts("CPU Clock: 533MHz\n");
+	else
+		puts("CPU Clock: 400MHz\n");
+
+	puts("BOARD: Alpha Project. AP-SH4A-4A\n");
+	return 0;
+}
+
+#define MSTPSR1			(0xFFC80044)
+#define MSTPCR1			(0xFFC80034)
+#define MSTPSR1_GETHER	(1 << 14)
+
+/* IPSR3 */
+#define ET0_ETXD0 (0x4 << 3)
+#define ET0_GTX_CLK_A (0x4 << 6)
+#define ET0_ETXD1_A (0x4 << 9)
+#define ET0_ETXD2_A (0x4 << 12)
+#define ET0_ETXD3_A (0x4 << 15)
+#define ET0_ETXD4 (0x3 < 18)
+#define ET0_ETXD5_A (0x5 << 21)
+#define ET0_ETXD6_A (0x5 << 24)
+#define ET0_ETXD7 (0x4 << 27)
+#define IPSR3_ETH_ENABLE \
+	(ET0_ETXD0 | ET0_GTX_CLK_A | ET0_ETXD1_A | ET0_ETXD2_A | \
+	ET0_ETXD3_A | ET0_ETXD4 | ET0_ETXD5_A | ET0_ETXD6_A | ET0_ETXD7)
+
+/* IPSR4 */
+#define ET0_ERXD7	(0x4)
+#define ET0_RX_DV	(0x4 << 3)
+#define ET0_RX_ER	(0x4 << 6)
+#define ET0_CRS		(0x4 << 9)
+#define ET0_COL		(0x4 << 12)
+#define ET0_MDC		(0x4 << 15)
+#define ET0_MDIO_A	(0x3 << 18)
+#define ET0_LINK_A	(0x3 << 20)
+#define ET0_PHY_INT_A (0x3 << 24)
+
+#define IPSR4_ETH_ENABLE \
+	(ET0_ERXD7 | ET0_RX_DV | ET0_RX_ER | ET0_CRS | ET0_COL | \
+	ET0_MDC | ET0_MDIO_A | ET0_LINK_A | ET0_PHY_INT_A)
+
+/* IPSR8 */
+#define ET0_ERXD0	(0x4 << 20)
+#define ET0_ERXD1	(0x4 << 23)
+#define ET0_ERXD2_A (0x3 << 26)
+#define ET0_ERXD3_A (0x3 << 28)
+#define IPSR8_ETH_ENABLE \
+	(ET0_ERXD0 | ET0_ERXD1 | ET0_ERXD2_A | ET0_ERXD3_A)
+
+/* IPSR10 */
+#define RX4_D	(0x1 << 22)
+#define TX4_D	(0x1 << 23)
+#define IPSR10_SCIF_ENABLE (RX4_D | TX4_D)
+
+/* IPSR11 */
+#define ET0_ERXD4	(0x4 <<  4)
+#define ET0_ERXD5	(0x4 <<  7)
+#define ET0_ERXD6	(0x4 <<  4)
+#define ET0_TX_EN	(0x2 << 19)
+#define ET0_TX_ER	(0x2 << 21)
+#define ET0_TX_CLK_A (0x4 << 23)
+#define ET0_RX_CLK_A (0x3 << 26)
+#define IPSR11_ETH_ENABLE \
+	(ET0_ERXD4 | ET0_ERXD5 | ET0_ERXD6 | ET0_TX_EN | ET0_TX_ER | \
+	ET0_TX_CLK_A | ET0_RX_CLK_A)
+
+#define GPSR1_INIT (0xFFBF7FFF)
+#define GPSR2_INIT (0x4005FEFF)
+#define GPSR3_INIT (0x2EFFFFFF)
+#define GPSR4_INIT (0xC7000000)
+
+int board_init(void)
+{
+	u32 data;
+
+	/* Set IPSR register */
+	data = readl(IPSR3);
+	data |= IPSR3_ETH_ENABLE;
+	writel(~data, PMMR);
+	writel(data, IPSR3);
+
+	data = readl(IPSR4);
+	data |= IPSR4_ETH_ENABLE;
+	writel(~data, PMMR);
+	writel(data, IPSR4);
+
+	data = readl(IPSR8);
+	data |= IPSR8_ETH_ENABLE;
+	writel(~data, PMMR);
+	writel(data, IPSR8);
+
+	data = readl(IPSR10);
+	data |= IPSR10_SCIF_ENABLE;
+	writel(~data, PMMR);
+	writel(data, IPSR10);
+
+	data = readl(IPSR11);
+	data |= IPSR11_ETH_ENABLE;
+	writel(~data, PMMR);
+	writel(data, IPSR11);
+
+	/* GPIO select */
+	data = GPSR1_INIT;
+	writel(~data, PMMR);
+	writel(data, GPSR1);
+
+	data = GPSR2_INIT;
+	writel(~data, PMMR);
+	writel(data, GPSR2);
+
+	data = GPSR3_INIT;
+	writel(~data, PMMR);
+	writel(data, GPSR3);
+
+	data = GPSR4_INIT;
+	writel(~data, PMMR);
+	writel(data, GPSR4);
+
+	data = 0x0;
+	writel(~data, PMMR);
+	writel(data, GPSR5);
+
+	/* mode select */
+	data = MODESEL2_INIT;
+	writel(~data, PMMR);
+	writel(data, MODESEL2);
+
+#if defined(CONFIG_SH_ETHER)
+	u32 r = readl(MSTPSR1);
+	if (r & MSTPSR1_GETHER)
+		writel((r & ~MSTPSR1_GETHER), MSTPCR1);
+#endif
+	return 0;
+}
+
+int board_late_init(void)
+{
+	u8 mac[6];
+
+	/* Read Mac Address and set*/
+	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+	i2c_set_bus_num(CONFIG_SYS_I2C_MODULE);
+
+	/* Read MAC address */
+	i2c_read(0x50, 0x0, 0, mac, 6);
+
+	if (is_valid_ether_addr(mac))
+		eth_setenv_enetaddr("ethaddr", mac);
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	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;
+}
diff --git a/board/alphaproject/ap_sh4a_4a/lowlevel_init.S b/board/alphaproject/ap_sh4a_4a/lowlevel_init.S
new file mode 100644
index 0000000..f04b36b
--- /dev/null
+++ b/board/alphaproject/ap_sh4a_4a/lowlevel_init.S
@@ -0,0 +1,459 @@ 
+/*
+ * Copyright (C) 2011, 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ * Copyright (C) 2011, 2012 Renesas Solutions Corp.
+ *
+ * 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.
+ *
+ */
+#include <config.h>
+#include <version.h>
+#include <asm/processor.h>
+#include <asm/macro.h>
+
+#include <asm/processor.h>
+
+	.global	lowlevel_init
+
+	.text
+	.align	2
+
+lowlevel_init:
+
+	/* WDT */
+	write32 WDTCSR_A, WDTCSR_D
+
+	/* MMU */
+	write32 MMUCR_A, MMUCR_D
+
+	write32 FRQCR2_A, FRQCR2_D
+	write32 FRQCR0_A, FRQCR0_D
+
+	write32 CS0CTRL_A, CS0CTRL_D
+	write32 CS1CTRL_A, CS1CTRL_D
+	write32 CS0CTRL2_A, CS0CTRL2_D
+
+	write32 CSPWCR0_A, CSPWCR0_D
+	write32 CSPWCR1_A, CSPWCR1_D
+	write32 CS1GDST_A, CS1GDST_D
+
+	# clock mode check
+	mov.l   MODEMR, r1
+	mov.l   @r1, r0
+	and		#6, r0 /* Check 1 and 2 bit.*/
+	cmp/eq  #2, r0 /* 0x02 is 533Mhz mode */
+	bt      init_lbsc_533
+
+init_lbsc_400:
+
+	write32 CSWCR0_A, CSWCR0_D_400
+	write32 CSWCR1_A, CSWCR1_D
+
+	bra	init_dbsc3_400_pad
+	nop
+
+	.align 2
+
+MODEMR:		.long	0xFFCC0020
+WDTCSR_A:	.long	0xFFCC0004
+WDTCSR_D:	.long	0xA5000000
+MMUCR_A:	.long	0xFF000010
+MMUCR_D:	.long	0x00000004
+
+FRQCR2_A:	.long	0xFFC80008
+FRQCR2_D:	.long	0x00000000
+FRQCR0_A:	.long	0xFFC80000
+FRQCR0_D:	.long	0xCF000001
+
+CS0CTRL_A:	.long	0xFF800200
+CS0CTRL_D:	.long	0x00000020
+CS1CTRL_A:	.long	0xFF800204
+CS1CTRL_D:	.long	0x00000020
+
+CS0CTRL2_A:	.long	0xFF800220
+CS0CTRL2_D:	.long	0x00004000
+
+CSPWCR0_A:	.long	0xFF800280
+CSPWCR0_D:	.long	0x00000000
+CSPWCR1_A:	.long	0xFF800284
+CSPWCR1_D:	.long	0x00000000
+CS1GDST_A:	.long	0xFF8002C0
+CS1GDST_D:	.long	0x00000011
+
+init_lbsc_533:
+
+	write32 CSWCR0_A, CSWCR0_D_533
+	write32 CSWCR1_A, CSWCR1_D
+
+	bra	init_dbsc3_533_pad
+	nop
+
+	.align 2
+
+CSWCR0_A:	.long	0xFF800230
+CSWCR0_D_533:	.long	0x01120104
+CSWCR0_D_400:	.long	0x02120114
+CSWCR1_A:	.long	0xFF800234
+CSWCR1_D:	.long	0x077F077F
+
+init_dbsc3_400_pad:
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D
+	wait_timer	WAIT_200US_400
+
+	write32 DBPDCNT0_A,	DBPDCNT0_D_400
+	write32 DBPDCNT3_A,	DBPDCNT3_D0
+	write32 DBPDCNT1_A,	DBPDCNT1_D
+
+	write32 DBPDCNT3_A,	DBPDCNT3_D1
+	wait_timer WAIT_32MCLK
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D2
+	wait_timer WAIT_100US_400
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D3
+	wait_timer WAIT_16MCLK
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D4
+	wait_timer WAIT_200US_400
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D5
+	wait_timer WAIT_1MCLK
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D6
+	wait_timer WAIT_10KMCLK
+
+	bra init_dbsc3_ctrl_400
+	nop
+
+	.align 2
+
+init_dbsc3_533_pad:
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D
+	wait_timer	WAIT_200US_533
+
+	write32 DBPDCNT0_A,	DBPDCNT0_D_533
+	write32 DBPDCNT3_A,	DBPDCNT3_D0
+	write32 DBPDCNT1_A,	DBPDCNT1_D
+
+	write32 DBPDCNT3_A,	DBPDCNT3_D1
+	wait_timer WAIT_32MCLK
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D2
+	wait_timer WAIT_100US_533
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D3
+	wait_timer WAIT_16MCLK
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D4
+	wait_timer WAIT_200US_533
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D5
+	wait_timer WAIT_1MCLK
+
+	write32	DBPDCNT3_A,	DBPDCNT3_D6
+	wait_timer	WAIT_10KMCLK
+
+	bra init_dbsc3_ctrl_533
+	nop
+
+	.align 2
+
+WAIT_200US_400:	.long	40000
+WAIT_200US_533:	.long	53300
+WAIT_100US_400:	.long	20000
+WAIT_100US_533:	.long	26650
+WAIT_32MCLK:	.long	32
+WAIT_16MCLK:	.long	16
+WAIT_1MCLK:		.long	1
+WAIT_10KMCLK:	.long	10000
+
+DBPDCNT0_A:		.long	0xFE800200
+DBPDCNT0_D_533:	.long	0x00010245
+DBPDCNT0_D_400:	.long	0x00010235
+DBPDCNT1_A:		.long	0xFE800204
+DBPDCNT1_D:		.long	0x00000014
+DBPDCNT3_A:		.long	0xFE80020C
+DBPDCNT3_D:		.long	0x80000000
+DBPDCNT3_D0:	.long	0x800F0000
+DBPDCNT3_D1:	.long	0x800F1000
+DBPDCNT3_D2:	.long	0x820F1000
+DBPDCNT3_D3:	.long	0x860F1000
+DBPDCNT3_D4:	.long	0x870F1000
+DBPDCNT3_D5:	.long	0x870F3000
+DBPDCNT3_D6:	.long	0x870F7000
+
+init_dbsc3_ctrl_400:
+
+	write32 DBKIND_A, DBKIND_D
+	write32 DBCONF_A, DBCONF_D
+
+	write32 DBTR0_A,	DBTR0_D_400
+	write32 DBTR1_A,	DBTR1_D_400
+	write32 DBTR2_A,	DBTR2_D
+	write32 DBTR3_A,	DBTR3_D_400
+	write32 DBTR4_A,	DBTR4_D_400
+	write32 DBTR5_A,	DBTR5_D_400
+	write32 DBTR6_A,	DBTR6_D_400
+	write32 DBTR7_A,	DBTR7_D
+	write32 DBTR8_A,	DBTR8_D_400
+	write32 DBTR9_A,	DBTR9_D
+	write32 DBTR10_A,	DBTR10_D_400
+	write32 DBTR11_A,	DBTR11_D
+	write32 DBTR12_A,	DBTR12_D_400
+	write32 DBTR13_A,	DBTR13_D_400
+	write32 DBTR14_A,	DBTR14_D
+	write32 DBTR15_A,	DBTR15_D
+	write32 DBTR16_A,	DBTR16_D_400
+	write32 DBTR17_A,	DBTR17_D_400
+	write32 DBTR18_A,	DBTR18_D_400
+
+	write32	DBBL_A,	DBBL_D
+	write32	DBRNK0_A,	DBRNK0_D
+
+	write32 DBCMD_A,	DBCMD_D0_400
+	write32 DBCMD_A,	DBCMD_D1
+	write32 DBCMD_A,	DBCMD_D2
+	write32 DBCMD_A,	DBCMD_D3
+	write32 DBCMD_A,	DBCMD_D4
+	write32 DBCMD_A,	DBCMD_D5_400
+	write32 DBCMD_A,	DBCMD_D6
+	write32 DBCMD_A,	DBCMD_D7
+	write32 DBCMD_A,	DBCMD_D8
+	write32 DBCMD_A,	DBCMD_D9_400
+	write32 DBCMD_A,	DBCMD_D10
+	write32 DBCMD_A,	DBCMD_D11
+	write32 DBCMD_A,	DBCMD_D12
+
+	write32	DBRFCNF0_A,	DBRFCNF0_D
+	write32	DBRFCNF1_A,	DBRFCNF1_D_400
+	write32	DBRFCNF2_A,	DBRFCNF2_D
+	write32	DBRFEN_A,	DBRFEN_D
+	write32	DBACEN_A,	DBACEN_D
+	write32	DBACEN_A,	DBACEN_D
+
+	/* Dummy read */
+	mov.l DBWAIT_A, r1
+	synco
+	mov.l @r1, r0
+	synco
+
+	/* Dummy read */
+	mov.l SDRAM_A, r1
+	synco
+	mov.l @r1, r0
+	synco
+
+	/* need sleep 186A0 */
+
+	bra	finish_init_sh7734
+	nop
+
+	.align 2
+
+init_dbsc3_ctrl_533:
+
+	write32 DBKIND_A, DBKIND_D
+	write32 DBCONF_A, DBCONF_D
+
+	write32 DBTR0_A,	DBTR0_D_533
+	write32 DBTR1_A,	DBTR1_D_533
+	write32 DBTR2_A,	DBTR2_D
+	write32 DBTR3_A,	DBTR3_D_533
+	write32 DBTR4_A,	DBTR4_D_533
+	write32 DBTR5_A,	DBTR5_D_533
+	write32 DBTR6_A,	DBTR6_D_533
+	write32 DBTR7_A,	DBTR7_D
+	write32 DBTR8_A,	DBTR8_D_533
+	write32 DBTR9_A,	DBTR9_D
+	write32 DBTR10_A,	DBTR10_D_533
+	write32 DBTR11_A,	DBTR11_D
+	write32 DBTR12_A,	DBTR12_D_533
+	write32 DBTR13_A,	DBTR13_D_533
+	write32 DBTR14_A,	DBTR14_D
+	write32 DBTR15_A,	DBTR15_D
+	write32 DBTR16_A,	DBTR16_D_533
+	write32 DBTR17_A,	DBTR17_D_533
+	write32 DBTR18_A,	DBTR18_D_533
+
+	write32	DBBL_A,	DBBL_D
+	write32	DBRNK0_A,	DBRNK0_D
+
+	write32 DBCMD_A,	DBCMD_D0_533
+	write32 DBCMD_A,	DBCMD_D1
+	write32 DBCMD_A,	DBCMD_D2
+	write32 DBCMD_A,	DBCMD_D3
+	write32 DBCMD_A,	DBCMD_D4
+	write32 DBCMD_A,	DBCMD_D5_533
+	write32 DBCMD_A,	DBCMD_D6
+	write32 DBCMD_A,	DBCMD_D7
+	write32 DBCMD_A,	DBCMD_D8
+	write32 DBCMD_A,	DBCMD_D9_533
+	write32 DBCMD_A,	DBCMD_D10
+	write32 DBCMD_A,	DBCMD_D11
+	write32 DBCMD_A,	DBCMD_D12
+
+	write32	DBRFCNF0_A,	DBRFCNF0_D
+	write32	DBRFCNF1_A,	DBRFCNF1_D_533
+	write32	DBRFCNF2_A,	DBRFCNF2_D
+	write32	DBRFEN_A,	DBRFEN_D
+	write32	DBACEN_A,	DBACEN_D
+	write32	DBACEN_A,	DBACEN_D
+
+	/* Dummy read */
+	mov.l DBWAIT_A, r1
+	synco
+	mov.l @r1, r0
+	synco
+
+	/* Dummy read */
+	mov.l SDRAM_A, r1
+	synco
+	mov.l @r1, r0
+	synco
+
+	/* need sleep 186A0 */
+
+	bra	finish_init_sh7734
+	nop
+
+	.align 2
+
+DBKIND_A:	.long	0xFE800020
+DBKIND_D:	.long	0x00000005
+DBCONF_A:	.long	0xFE800024
+DBCONF_D:	.long	0x0D020901
+
+DBTR0_A:	.long	0xFE800040
+DBTR0_D_533:.long	0x00000004
+DBTR0_D_400:.long	0x00000003
+DBTR1_A:	.long	0xFE800044
+DBTR1_D_533:.long	0x00000003
+DBTR1_D_400:.long	0x00000002
+DBTR2_A:	.long	0xFE800048
+DBTR2_D:	.long	0x00000000
+DBTR3_A:	.long	0xFE800050
+DBTR3_D_533:.long	0x00000004
+DBTR3_D_400:.long	0x00000003
+
+DBTR4_A:	.long	0xFE800054
+DBTR4_D_533:.long	0x00050004
+DBTR4_D_400:.long	0x00050003
+
+DBTR5_A:	.long	0xFE800058
+DBTR5_D_533:.long	0x0000000F
+DBTR5_D_400:.long	0x0000000B
+
+DBTR6_A:	.long	0xFE80005C
+DBTR6_D_533:.long	0x0000000B
+DBTR6_D_400:.long	0x00000008
+
+DBTR7_A:	.long	0xFE800060
+DBTR7_D:	.long	0x00000002
+
+DBTR8_A:	.long	0xFE800064
+DBTR8_D_533:.long	0x0000000D
+DBTR8_D_400:.long	0x0000000A
+
+DBTR9_A:	.long	0xFE800068
+DBTR9_D:	.long	0x00000002
+
+DBTR10_A:	.long	0xFE80006C
+DBTR10_D_533:.long	0x00000004
+DBTR10_D_400:.long	0x00000003
+
+DBTR11_A:	.long	0xFE800070
+DBTR11_D:	.long	0x00000008
+
+DBTR12_A:	.long	0xFE800074
+DBTR12_D_533:.long	0x00000009
+DBTR12_D_400:.long	0x00000008
+
+DBTR13_A:	.long	0xFE800078
+DBTR13_D_533:.long	0x00000022
+DBTR13_D_400:.long	0x0000001A
+
+DBTR14_A:	.long	0xFE80007C
+DBTR14_D:	.long	0x00070002
+
+DBTR15_A:	.long	0xFE800080
+DBTR15_D:	.long	0x00000003
+
+DBTR16_A:	.long	0xFE800084
+DBTR16_D_533:.long	0x120A1001
+DBTR16_D_400:.long	0x12091001
+
+DBTR17_A:	.long	0xFE800088
+DBTR17_D_533:.long	0x00040000
+DBTR17_D_400:.long	0x00030000
+
+DBTR18_A:	.long	0xFE80008C
+DBTR18_D_533:.long	0x02010200
+DBTR18_D_400:.long	0x02000207
+
+DBBL_A:	.long	0xFE8000B0
+DBBL_D:	.long	0x00000000
+
+DBRNK0_A:		.long	0xFE800100
+DBRNK0_D:		.long	0x00000001
+
+DBCMD_A:		.long	0xFE800018
+DBCMD_D0_533:	.long	0x1100006B
+DBCMD_D0_400:	.long	0x11000050
+DBCMD_D1:		.long	0x0B000000
+DBCMD_D2:		.long	0x2A004000
+DBCMD_D3:		.long	0x2B006000
+DBCMD_D4:		.long	0x29002044
+DBCMD_D5_533:	.long	0x28000743
+DBCMD_D5_400:	.long	0x28000533
+DBCMD_D6:		.long	0x0B000000
+DBCMD_D7:		.long	0x0C000000
+DBCMD_D8:		.long	0x0C000000
+DBCMD_D9_533:	.long	0x28000643
+DBCMD_D9_400:	.long	0x28000433
+DBCMD_D10:		.long	0x000000C8
+DBCMD_D11:		.long	0x290023C4
+DBCMD_D12:		.long	0x29002004
+
+DBRFCNF0_A:		.long	0xFE8000E0
+DBRFCNF0_D:		.long	0x000001FF
+DBRFCNF1_A:		.long	0xFE8000E4
+DBRFCNF1_D_533:	.long	0x00000805
+DBRFCNF1_D_400:	.long	0x00000618
+
+DBRFCNF2_A:		.long	0xFE8000E8
+DBRFCNF2_D:		.long	0x00000000
+
+DBRFEN_A:		.long	0xFE800014
+DBRFEN_D:		.long	0x00000001
+
+DBACEN_A:		.long	0xFE800010
+DBACEN_D:		.long	0x00000001
+
+DBWAIT_A:		.long	0xFE80001C
+SDRAM_A:		.long	0x0C000000
+
+finish_init_sh7734:
+	write32 CCR_A,  CCR_D
+
+	stc sr, r0
+	mov.l  SR_MASK_D, r1
+	and r1, r0
+	ldc r0, sr
+
+	rts
+	nop
+
+	.align  2
+
+CCR_A:	.long	0xFF00001C
+CCR_D:	.long	0x0000090B
+SR_MASK_D:	.long	0xEFFFFF0F
diff --git a/boards.cfg b/boards.cfg
index 1f6614f..8444370 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -1017,6 +1017,7 @@  sh7763rdp                    sh          sh4         sh7763rdp           renesas
 sh7785lcr                    sh          sh4         sh7785lcr           renesas        -
 sh7785lcr_32bit              sh          sh4         sh7785lcr           renesas        -           sh7785lcr:SH_32BIT=1
 r0p7734                      sh          sh4         r0p7734             renesas        -
+ap_sh4a_4a                   sh          sh4         ap_sh4a_4a          alphaproject   -
 grsim_leon2                  sparc       leon2       -                   gaisler
 gr_cpci_ax2000               sparc       leon3       -                   gaisler
 gr_ep2s60                    sparc       leon3       -                   gaisler
diff --git a/include/configs/ap_sh4a_4a.h b/include/configs/ap_sh4a_4a.h
new file mode 100644
index 0000000..f63061b
--- /dev/null
+++ b/include/configs/ap_sh4a_4a.h
@@ -0,0 +1,176 @@ 
+/*
+ * Configuation settings for the Alpha Project AP-SH4A-4A board
+ *
+ * Copyright (C) 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.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.
+ *
+ */
+
+#ifndef __AP_SH4A_4A_H
+#define __AP_SH4A_4A_H
+
+#undef DEBUG
+#define CONFIG_SH		1
+#define CONFIG_SH4		1
+#define CONFIG_SH4A		1
+#define CONFIG_CPU_SH7734	1
+#define CONFIG_AP_SH4A_4A	1
+#define CONFIG_400MHZ_MODE	1
+/* #define CONFIG_533MHZ_MODE	1 */
+
+#define CONFIG_BOARD_LATE_INIT
+#define CONFIG_SYS_TEXT_BASE 0x8BFC0000
+
+#define CONFIG_CMD_FLASH
+#define CONFIG_CMD_MEMORY
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_SDRAM
+#define CONFIG_CMD_ENV
+#define CONFIG_CMD_SAVEENV
+
+#define CONFIG_BAUDRATE		115200
+#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTARGS		"console=ttySC4,115200"
+
+#define CONFIG_VERSION_VARIABLE
+#undef  CONFIG_SHOW_BOOT_PROGRESS
+
+/* Ether */
+#define CONFIG_SH_ETHER 1
+#define CONFIG_SH_ETHER_USE_PORT (0)
+#define CONFIG_SH_ETHER_PHY_ADDR (0x0)
+#define CONFIG_SH_ETHER_PHY_MODE (PHY_INTERFACE_MODE_GMII)
+#define CONFIG_SH_ETHER_SH7734_MII (0x02) /* GMII */
+#define CONFIG_PHYLIB
+#define CONFIG_PHY_MICREL 1
+#define CONFIG_BITBANGMII
+#define CONFIG_BITBANGMII_MULTI
+
+/* I2C */
+#define CONFIG_CMD_I2C
+#define CONFIG_SH_SH7734_I2C	1
+#define CONFIG_HARD_I2C			1
+#define CONFIG_I2C_MULTI_BUS	1
+#define CONFIG_SYS_MAX_I2C_BUS	2
+#define CONFIG_SYS_I2C_MODULE	0
+#define CONFIG_SYS_I2C_SPEED	400000 /* 400 kHz */
+#define CONFIG_SYS_I2C_SLAVE	0x50
+#define CONFIG_SH_I2C_DATA_HIGH	4
+#define CONFIG_SH_I2C_DATA_LOW	5
+#define CONFIG_SH_I2C_CLOCK		500000000
+#define CONFIG_SH_I2C_BASE0		0xFFC70000
+#define CONFIG_SH_I2C_BASE1		0xFFC71000
+
+/* undef to save memory	*/
+#define CONFIG_SYS_LONGHELP
+/* Monitor Command Prompt */
+#define CONFIG_SYS_PROMPT		"=> "
+/* Buffer size for input from the Console */
+#define CONFIG_SYS_CBSIZE		256
+/* Buffer size for Console output */
+#define CONFIG_SYS_PBSIZE		256
+/* max args accepted for monitor commands */
+#define CONFIG_SYS_MAXARGS		16
+/* 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_SCIF			1
+#define CONFIG_CONS_SCIF4	1
+
+/* Suppress display of console information at boot */
+#undef  CONFIG_SYS_CONSOLE_INFO_QUIET
+#undef  CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
+#undef  CONFIG_SYS_CONSOLE_ENV_OVERWRITE
+
+/* SDRAM */
+#define CONFIG_SYS_SDRAM_BASE	(0x88000000)
+#define CONFIG_SYS_SDRAM_SIZE	(64 * 1024 * 1024)
+#define CONFIG_SYS_LOAD_ADDR	(CONFIG_SYS_SDRAM_BASE + 16 * 1024 * 1024)
+
+#define CONFIG_SYS_MEMTEST_START (CONFIG_SYS_SDRAM_BASE)
+#define CONFIG_SYS_MEMTEST_END	 (CONFIG_SYS_MEMTEST_START + CONFIG_SYS_SDRAM_SIZE)
+/* Enable alternate, more extensive, memory test */
+#undef  CONFIG_SYS_ALT_MEMTEST
+/* Scratch address used by the alternate memory test */
+#undef  CONFIG_SYS_MEMTEST_SCRATCH
+
+/* Enable temporary baudrate change while serial download */
+#undef  CONFIG_SYS_LOADS_BAUD_CHANGE
+
+/* FLASH */
+#define CONFIG_FLASH_CFI_DRIVER 1
+#define CONFIG_SYS_FLASH_CFI
+#undef  CONFIG_SYS_FLASH_QUIET_TEST
+#define CONFIG_SYS_FLASH_EMPTY_INFO
+#define CONFIG_SYS_FLASH_BASE	(0xA0000000)
+#define CONFIG_SYS_MAX_FLASH_SECT	512
+
+/* if you use all NOR Flash , you change dip-switch. Please see Manual. */
+#define CONFIG_SYS_MAX_FLASH_BANKS	1
+#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE }
+
+/* Timeout for Flash erase operations (in ms) */
+#define CONFIG_SYS_FLASH_ERASE_TOUT	(3 * 1000)
+/* Timeout for Flash write operations (in ms) */
+#define CONFIG_SYS_FLASH_WRITE_TOUT	(3 * 1000)
+/* Timeout for Flash set sector lock bit operations (in ms) */
+#define CONFIG_SYS_FLASH_LOCK_TOUT	(3 * 1000)
+/* Timeout for Flash clear lock bit operations (in ms) */
+#define CONFIG_SYS_FLASH_UNLOCK_TOUT	(3 * 1000)
+
+/*
+ * Use hardware flash sectors protection instead
+ * of U-Boot software protection
+ */
+#undef  CONFIG_SYS_FLASH_PROTECTION
+#undef  CONFIG_SYS_DIRECT_FLASH_TFTP
+
+/* Address of u-boot image in Flash (NOT run time address in SDRAM) ?!? */
+#define CONFIG_SYS_MONITOR_BASE	(CONFIG_SYS_FLASH_BASE)
+/* Monitor size */
+#define CONFIG_SYS_MONITOR_LEN	(256 * 1024)
+/* Size of DRAM reserved for malloc() use */
+#define CONFIG_SYS_MALLOC_LEN	(256 * 1024)
+/* size in bytes reserved for initial data */
+#define CONFIG_SYS_GBL_DATA_SIZE	(256)
+#define CONFIG_SYS_BOOTMAPSZ	(8 * 1024 * 1024)
+
+/* ENV setting */
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_OVERWRITE	1
+#define CONFIG_ENV_SECT_SIZE	(128 * 1024)
+#define CONFIG_ENV_SIZE		(CONFIG_ENV_SECT_SIZE)
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
+/* Offset of env Flash sector relative to CONFIG_SYS_FLASH_BASE */
+#define CONFIG_ENV_OFFSET	(CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE)
+#define CONFIG_ENV_SIZE_REDUND	(CONFIG_ENV_SECT_SIZE)
+
+/* Board Clock */
+#if defined(CONFIG_400MHZ_MODE)
+#define CONFIG_SYS_CLK_FREQ 50000000
+#else
+#define CONFIG_SYS_CLK_FREQ 44444444
+#endif
+#define CONFIG_SYS_TMU_CLK_DIV      4
+#define CONFIG_SYS_HZ       1000
+
+#endif	/* __AP_SH4A_4A_H */