sh: add support for sh7752evb board

The R0P7752C00000RZ board has SH7752, 512MB DDR3-SDRAM, SPI ROM,
Gigabit Ethernet, and eMMC.

This patch supports the following functions:
 - 512MB DDR3-SDRAM, SCIF4, SPI ROM, Gigabit Ethernet, eMMC

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

5 files changed, 1039 insertions, 0 deletions

diff --git a/board/renesas/sh7752evb/Makefile b/board/renesas/sh7752evb/Makefile
new file mode 100644
index 0000000000..196c992ad8
--- /dev/null
+++ b/board/renesas/sh7752evb/Makefile
@@ -0,0 +1,36 @@
+#
+# Copyright (C) 2012  Yoshihiro Shimoda <yoshihiro.shimoda.uh@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	:= sh7752evb.o spi-boot.o
+SOBJS	:= lowlevel_init.o
+
+$(LIB):	$(obj).depend $(COBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(COBJS) $(SOBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/renesas/sh7752evb/lowlevel_init.S b/board/renesas/sh7752evb/lowlevel_init.S
new file mode 100644
index 0000000000..73c8ac4667
--- /dev/null
+++ b/board/renesas/sh7752evb/lowlevel_init.S
@@ -0,0 +1,460 @@
+/*
+ * Copyright (C) 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.
+ *
+ * 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>
+
+.macro	or32, addr, data
+	mov.l \addr, r1
+	mov.l \data, r0
+	mov.l @r1, r2
+	or    r2, r0
+	mov.l r0, @r1
+.endm
+
+.macro	wait_DBCMD
+	mov.l	DBWAIT_A, r0
+	mov.l	@r0, r1
+.endm
+
+	.global lowlevel_init
+	.section	.spiboot1.text
+	.align  2
+
+lowlevel_init:
+	/*------- GPIO -------*/
+	write16 PDCR_A,	PDCR_D		! SPI0
+	write16 PGCR_A,	PGCR_D		! SPI0, GETHER MDIO gate(PTG1)
+	write16 PJCR_A,	PJCR_D		! SCIF4
+	write16 PTCR_A,	PTCR_D		! STATUS
+	write16 PSEL1_A, PSEL1_D	! SPI0
+	write16 PSEL2_A, PSEL2_D	! SPI0
+	write16 PSEL5_A, PSEL5_D	! STATUS
+
+	bra	exit_gpio
+	nop
+
+	.align	2
+
+/*------- GPIO -------*/
+PDCR_A:		.long	0xffec0006
+PGCR_A:		.long	0xffec000c
+PJCR_A:		.long	0xffec0012
+PTCR_A:		.long	0xffec0026
+PSEL1_A:	.long	0xffec0072
+PSEL2_A:	.long	0xffec0074
+PSEL5_A:	.long	0xffec007a
+
+PDCR_D:		.long	0x0000
+PGCR_D:		.long	0x0004
+PJCR_D:		.long	0x0000
+PTCR_D:		.long	0x0000
+PSEL1_D:	.long	0x0000
+PSEL2_D:	.long	0x3000
+PSEL5_D:	.long	0x0ffc
+
+	.align	2
+
+exit_gpio:
+	mov	#0, r14
+	mova	2f, r0
+	mov.l	PC_MASK, r1
+	tst	r0, r1
+	bf	2f
+
+	bra	exit_pmb
+	nop
+
+	.align	2
+
+/* If CPU runs on SDRAM (PC=0x5???????) or not. */
+PC_MASK:	.long	0x20000000
+
+2:
+	mov	#1, r14
+
+	mov.l	EXPEVT_A, r0
+	mov.l	@r0, r0
+	mov.l	EXPEVT_POWER_ON_RESET, r1
+	cmp/eq	r0, r1
+	bt	1f
+
+	/*
+	 * If EXPEVT value is manual reset or tlb multipul-hit,
+	 * initialization of DDR3IF is not necessary.
+	 */
+	bra	exit_ddr
+	nop
+
+1:
+	/*------- Reset -------*/
+	write32 MRSTCR0_A, MRSTCR0_D
+	write32 MRSTCR1_A, MRSTCR1_D
+
+	/* For Core Reset */
+	mov.l	DBACEN_A, r0
+	mov.l	@r0, r0
+	cmp/eq	#0, r0
+	bt	3f
+
+	/*
+	 * If DBACEN == 1(DBSC was already enabled), we have to avoid the
+	 * initialization of DDR3-SDRAM.
+	 */
+	bra	exit_ddr
+	nop
+
+3:
+	/*------- DDR3IF -------*/
+	/* oscillation stabilization time */
+	wait_timer	WAIT_OSC_TIME
+
+	/* step 3 */
+	write32 DBCMD_A, DBCMD_RSTL_VAL
+	wait_timer	WAIT_30US
+
+	/* step 4 */
+	write32 DBCMD_A, DBCMD_PDEN_VAL
+
+	/* step 5 */
+	write32 DBKIND_A, DBKIND_D
+
+	/* step 6 */
+	write32 DBCONF_A, DBCONF_D
+	write32 DBTR0_A, DBTR0_D
+	write32 DBTR1_A, DBTR1_D
+	write32 DBTR2_A, DBTR2_D
+	write32 DBTR3_A, DBTR3_D
+	write32 DBTR4_A, DBTR4_D
+	write32 DBTR5_A, DBTR5_D
+	write32 DBTR6_A, DBTR6_D
+	write32 DBTR7_A, DBTR7_D
+	write32 DBTR8_A, DBTR8_D
+	write32 DBTR9_A, DBTR9_D
+	write32 DBTR10_A, DBTR10_D
+	write32 DBTR11_A, DBTR11_D
+	write32 DBTR12_A, DBTR12_D
+	write32 DBTR13_A, DBTR13_D
+	write32 DBTR14_A, DBTR14_D
+	write32 DBTR15_A, DBTR15_D
+	write32 DBTR16_A, DBTR16_D
+	write32 DBTR17_A, DBTR17_D
+	write32 DBTR18_A, DBTR18_D
+	write32 DBTR19_A, DBTR19_D
+	write32 DBRNK0_A, DBRNK0_D
+
+	/* step 7 */
+	write32 DBPDCNT3_A, DBPDCNT3_D
+
+	/* step 8 */
+	write32 DBPDCNT1_A, DBPDCNT1_D
+	write32 DBPDCNT2_A, DBPDCNT2_D
+	write32 DBPDLCK_A, DBPDLCK_D
+	write32 DBPDRGA_A, DBPDRGA_D
+	write32 DBPDRGD_A, DBPDRGD_D
+
+	/* step 9 */
+	wait_timer	WAIT_30US
+
+	/* step 10 */
+	write32 DBPDCNT0_A, DBPDCNT0_D
+
+	/* step 11 */
+	wait_timer	WAIT_30US
+	wait_timer	WAIT_30US
+
+	/* step 12 */
+	write32 DBCMD_A, DBCMD_WAIT_VAL
+	wait_DBCMD
+
+	/* step 13 */
+	write32 DBCMD_A, DBCMD_RSTH_VAL
+	wait_DBCMD
+
+	/* step 14 */
+	write32 DBCMD_A, DBCMD_WAIT_VAL
+	write32 DBCMD_A, DBCMD_WAIT_VAL
+	write32 DBCMD_A, DBCMD_WAIT_VAL
+	write32 DBCMD_A, DBCMD_WAIT_VAL
+
+	/* step 15 */
+	write32 DBCMD_A, DBCMD_PDXT_VAL
+
+	/* step 16 */
+	write32 DBCMD_A, DBCMD_MRS2_VAL
+
+	/* step 17 */
+	write32 DBCMD_A, DBCMD_MRS3_VAL
+
+	/* step 18 */
+	write32 DBCMD_A, DBCMD_MRS1_VAL
+
+	/* step 19 */
+	write32 DBCMD_A, DBCMD_MRS0_VAL
+
+	/* step 20 */
+	write32 DBCMD_A, DBCMD_ZQCL_VAL
+
+	write32 DBCMD_A, DBCMD_REF_VAL
+	write32 DBCMD_A, DBCMD_REF_VAL
+	wait_DBCMD
+
+	/* step 21 */
+	write32 DBADJ0_A, DBADJ0_D
+	write32 DBADJ1_A, DBADJ1_D
+	write32 DBADJ2_A, DBADJ2_D
+
+	/* step 22 */
+	write32 DBRFCNF0_A, DBRFCNF0_D
+	write32 DBRFCNF1_A, DBRFCNF1_D
+	write32 DBRFCNF2_A, DBRFCNF2_D
+
+	/* step 23 */
+	write32 DBCALCNF_A, DBCALCNF_D
+
+	/* step 24 */
+	write32 DBRFEN_A, DBRFEN_D
+	write32 DBCMD_A, DBCMD_SRXT_VAL
+
+	/* step 25 */
+	write32 DBACEN_A, DBACEN_D
+
+	/* step 26 */
+	wait_DBCMD
+
+	bra	exit_ddr
+	nop
+
+	.align 2
+
+EXPEVT_A:		.long	0xff000024
+EXPEVT_POWER_ON_RESET:	.long	0x00000000
+
+/*------- Reset -------*/
+MRSTCR0_A:	.long	0xffd50030
+MRSTCR0_D:	.long	0xfe1ffe7f
+MRSTCR1_A:	.long	0xffd50034
+MRSTCR1_D:	.long	0xfff3ffff
+
+/*------- DDR3IF -------*/
+DBCMD_A:	.long	0xfe800018
+DBKIND_A:	.long	0xfe800020
+DBCONF_A:	.long	0xfe800024
+DBTR0_A:	.long	0xfe800040
+DBTR1_A:	.long	0xfe800044
+DBTR2_A:	.long	0xfe800048
+DBTR3_A:	.long	0xfe800050
+DBTR4_A:	.long	0xfe800054
+DBTR5_A:	.long	0xfe800058
+DBTR6_A:	.long	0xfe80005c
+DBTR7_A:	.long	0xfe800060
+DBTR8_A:	.long	0xfe800064
+DBTR9_A:	.long	0xfe800068
+DBTR10_A:	.long	0xfe80006c
+DBTR11_A:	.long	0xfe800070
+DBTR12_A:	.long	0xfe800074
+DBTR13_A:	.long	0xfe800078
+DBTR14_A:	.long	0xfe80007c
+DBTR15_A:	.long	0xfe800080
+DBTR16_A:	.long	0xfe800084
+DBTR17_A:	.long	0xfe800088
+DBTR18_A:	.long	0xfe80008c
+DBTR19_A:	.long	0xfe800090
+DBRNK0_A:	.long	0xfe800100
+DBPDCNT0_A:	.long	0xfe800200
+DBPDCNT1_A:	.long	0xfe800204
+DBPDCNT2_A:	.long	0xfe800208
+DBPDCNT3_A:	.long	0xfe80020c
+DBPDLCK_A:	.long	0xfe800280
+DBPDRGA_A:	.long	0xfe800290
+DBPDRGD_A:	.long	0xfe8002a0
+DBADJ0_A:	.long	0xfe8000c0
+DBADJ1_A:	.long	0xfe8000c4
+DBADJ2_A:	.long	0xfe8000c8
+DBRFCNF0_A:	.long	0xfe8000e0
+DBRFCNF1_A:	.long	0xfe8000e4
+DBRFCNF2_A:	.long	0xfe8000e8
+DBCALCNF_A:	.long	0xfe8000f4
+DBRFEN_A:	.long	0xfe800014
+DBACEN_A:	.long	0xfe800010
+DBWAIT_A:	.long	0xfe80001c
+
+WAIT_OSC_TIME:	.long	6000
+WAIT_30US:	.long	13333
+
+DBCMD_RSTL_VAL:	.long	0x20000000
+DBCMD_PDEN_VAL:	.long	0x1000d73c
+DBCMD_WAIT_VAL:	.long	0x0000d73c
+DBCMD_RSTH_VAL:	.long	0x2100d73c
+DBCMD_PDXT_VAL:	.long	0x110000c8
+DBCMD_MRS0_VAL:	.long	0x28000930
+DBCMD_MRS1_VAL:	.long	0x29000004
+DBCMD_MRS2_VAL:	.long	0x2a000008
+DBCMD_MRS3_VAL:	.long	0x2b000000
+DBCMD_ZQCL_VAL:	.long	0x03000200
+DBCMD_REF_VAL:	.long	0x0c000000
+DBCMD_SRXT_VAL:	.long	0x19000000
+DBKIND_D:	.long	0x00000007
+DBCONF_D:	.long	0x0f030a01
+DBTR0_D:	.long	0x00000007
+DBTR1_D:	.long	0x00000006
+DBTR2_D:	.long	0x00000000
+DBTR3_D:	.long	0x00000007
+DBTR4_D:	.long	0x00070007
+DBTR5_D:	.long	0x0000001b
+DBTR6_D:	.long	0x00000014
+DBTR7_D:	.long	0x00000005
+DBTR8_D:	.long	0x00000015
+DBTR9_D:	.long	0x00000006
+DBTR10_D:	.long	0x00000008
+DBTR11_D:	.long	0x00000007
+DBTR12_D:	.long	0x0000000e
+DBTR13_D:	.long	0x00000056
+DBTR14_D:	.long	0x00000006
+DBTR15_D:	.long	0x00000004
+DBTR16_D:	.long	0x00150002
+DBTR17_D:	.long	0x000c0017
+DBTR18_D:	.long	0x00000200
+DBTR19_D:	.long	0x00000040
+DBRNK0_D:	.long	0x00000001
+DBPDCNT0_D:	.long	0x00000001
+DBPDCNT1_D:	.long	0x00000001
+DBPDCNT2_D:	.long	0x00000000
+DBPDCNT3_D:	.long	0x00004010
+DBPDLCK_D:	.long	0x0000a55a
+DBPDRGA_D:	.long	0x00000028
+DBPDRGD_D:	.long	0x00017100
+
+DBADJ0_D:	.long	0x00000000
+DBADJ1_D:	.long	0x00000000
+DBADJ2_D:	.long	0x18061806
+DBRFCNF0_D:	.long	0x000001ff
+DBRFCNF1_D:	.long	0x08001000
+DBRFCNF2_D:	.long	0x00000000
+DBCALCNF_D:	.long	0x0000ffff
+DBRFEN_D:	.long	0x00000001
+DBACEN_D:	.long	0x00000001
+
+	.align 2
+exit_ddr:
+#if defined(CONFIG_SH_32BIT)
+	/*------- set PMB -------*/
+	write32	PASCR_A,	PASCR_29BIT_D
+	write32	MMUCR_A,	MMUCR_D
+
+	/*****************************************************************
+	 * ent	virt		phys		v	sz	c	wt
+	 * 0	0xa0000000	0x00000000	1	128M	0	1
+	 * 1	0xa8000000	0x48000000	1	128M	0	1
+	 * 5	0x88000000	0x48000000	1	128M	1	1
+	 */
+	write32	PMB_ADDR_SPIBOOT_A,	PMB_ADDR_SPIBOOT_D
+	write32	PMB_DATA_SPIBOOT_A,	PMB_DATA_SPIBOOT_D
+	write32	PMB_ADDR_DDR_C1_A,	PMB_ADDR_DDR_C1_D
+	write32	PMB_DATA_DDR_C1_A,	PMB_DATA_DDR_C1_D
+	write32	PMB_ADDR_DDR_N1_A,	PMB_ADDR_DDR_N1_D
+	write32	PMB_DATA_DDR_N1_A,	PMB_DATA_DDR_N1_D
+
+	write32	PMB_ADDR_ENTRY2,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY3,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY4,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY6,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY7,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY8,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY9,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY10,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY11,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY12,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY13,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY14,	PMB_ADDR_NOT_USE_D
+	write32	PMB_ADDR_ENTRY15,	PMB_ADDR_NOT_USE_D
+
+	write32	PASCR_A,	PASCR_INIT
+	mov.l	DUMMY_ADDR, r0
+	icbi	@r0
+#endif	/* if defined(CONFIG_SH_32BIT) */
+
+exit_pmb:
+	/* CPU is running on ILRAM? */
+	mov	r14, r0
+	tst	#1, r0
+	bt	1f
+
+	mov.l	_stack_ilram, r15
+	mov.l	_spiboot_main, r0
+100:	bsrf	r0
+	nop
+
+	.align	2
+_spiboot_main:	.long	(spiboot_main - (100b + 4))
+_stack_ilram:	.long	0xe5204000
+
+1:
+	write32	CCR_A,	CCR_D
+
+	rts
+	 nop
+
+	.align 2
+
+#if defined(CONFIG_SH_32BIT)
+/*------- set PMB -------*/
+PMB_ADDR_SPIBOOT_A:	.long	PMB_ADDR_BASE(0)
+PMB_ADDR_DDR_N1_A:	.long	PMB_ADDR_BASE(1)
+PMB_ADDR_DDR_C1_A:	.long	PMB_ADDR_BASE(5)
+PMB_ADDR_ENTRY2:	.long	PMB_ADDR_BASE(2)
+PMB_ADDR_ENTRY3:	.long	PMB_ADDR_BASE(3)
+PMB_ADDR_ENTRY4:	.long	PMB_ADDR_BASE(4)
+PMB_ADDR_ENTRY6:	.long	PMB_ADDR_BASE(6)
+PMB_ADDR_ENTRY7:	.long	PMB_ADDR_BASE(7)
+PMB_ADDR_ENTRY8:	.long	PMB_ADDR_BASE(8)
+PMB_ADDR_ENTRY9:	.long	PMB_ADDR_BASE(9)
+PMB_ADDR_ENTRY10:	.long	PMB_ADDR_BASE(10)
+PMB_ADDR_ENTRY11:	.long	PMB_ADDR_BASE(11)
+PMB_ADDR_ENTRY12:	.long	PMB_ADDR_BASE(12)
+PMB_ADDR_ENTRY13:	.long	PMB_ADDR_BASE(13)
+PMB_ADDR_ENTRY14:	.long	PMB_ADDR_BASE(14)
+PMB_ADDR_ENTRY15:	.long	PMB_ADDR_BASE(15)
+
+PMB_ADDR_SPIBOOT_D:	.long	mk_pmb_addr_val(0xa0)
+PMB_ADDR_DDR_C1_D:	.long	mk_pmb_addr_val(0x88)
+PMB_ADDR_DDR_N1_D:	.long	mk_pmb_addr_val(0xa8)
+PMB_ADDR_NOT_USE_D:	.long	0x00000000
+
+PMB_DATA_SPIBOOT_A:	.long	PMB_DATA_BASE(0)
+PMB_DATA_DDR_N1_A:	.long	PMB_DATA_BASE(1)
+PMB_DATA_DDR_C1_A:	.long	PMB_DATA_BASE(5)
+
+/*						ppn   ub v s1 s0  c  wt */
+PMB_DATA_SPIBOOT_D:	.long	mk_pmb_data_val(0x00, 0, 1, 1, 0, 0, 1)
+PMB_DATA_DDR_C1_D:	.long	mk_pmb_data_val(0x48, 0, 1, 1, 0, 1, 1)
+PMB_DATA_DDR_N1_D:	.long	mk_pmb_data_val(0x48, 1, 1, 1, 0, 0, 1)
+
+PASCR_A:		.long	0xff000070
+DUMMY_ADDR:		.long	0xa0000000
+PASCR_29BIT_D:		.long	0x00000000
+PASCR_INIT:		.long	0x80000080
+MMUCR_A:		.long	0xff000010
+MMUCR_D:		.long	0x00000004	/* clear ITLB */
+#endif	/* CONFIG_SH_32BIT */
+
+CCR_A:		.long	CCR
+CCR_D:		.long	CCR_CACHE_INIT
diff --git a/board/renesas/sh7752evb/sh7752evb.c b/board/renesas/sh7752evb/sh7752evb.c
new file mode 100644
index 0000000000..e99659395b
--- /dev/null
+++ b/board/renesas/sh7752evb/sh7752evb.c
@@ -0,0 +1,330 @@
+/*
+ * 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.
+ *
+ * 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 <malloc.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/mmc.h>
+#include <spi_flash.h>
+
+int checkboard(void)
+{
+	puts("BOARD: SH7752 evaluation board (R0P7752C00000RZ)\n");
+
+	return 0;
+}
+
+static void init_gpio(void)
+{
+	struct gpio_regs *gpio = GPIO_BASE;
+	struct sermux_regs *sermux = SERMUX_BASE;
+
+	/* GPIO */
+	writew(0x0000, &gpio->pacr);	/* GETHER */
+	writew(0x0001, &gpio->pbcr);	/* INTC */
+	writew(0x0000, &gpio->pccr);	/* PWMU, INTC */
+	writew(0xeaff, &gpio->pecr);	/* GPIO */
+	writew(0x0000, &gpio->pfcr);	/* WDT */
+	writew(0x0000, &gpio->phcr);	/* SPI1 */
+	writew(0x0000, &gpio->picr);	/* SDHI */
+	writew(0x0003, &gpio->pkcr);	/* SerMux */
+	writew(0x0000, &gpio->plcr);	/* SerMux */
+	writew(0x0000, &gpio->pmcr);	/* RIIC */
+	writew(0x0000, &gpio->pncr);	/* USB, SGPIO */
+	writew(0x0000, &gpio->pocr);	/* SGPIO */
+	writew(0xd555, &gpio->pqcr);	/* GPIO */
+	writew(0x0000, &gpio->prcr);	/* RIIC */
+	writew(0x0000, &gpio->pscr);	/* RIIC */
+	writeb(0x00, &gpio->pudr);
+	writew(0x5555, &gpio->pucr);	/* Debug LED */
+	writew(0x0000, &gpio->pvcr);	/* RSPI */
+	writew(0x0000, &gpio->pwcr);	/* EVC */
+	writew(0x0000, &gpio->pxcr);	/* LBSC */
+	writew(0x0000, &gpio->pycr);	/* LBSC */
+	writew(0x0000, &gpio->pzcr);	/* eMMC */
+	writew(0xfe00, &gpio->psel0);
+	writew(0xff00, &gpio->psel3);
+	writew(0x771f, &gpio->psel4);
+	writew(0x00ff, &gpio->psel6);
+	writew(0xfc00, &gpio->psel7);
+
+	writeb(0x10, &sermux->smr0);	/* SMR0: SerMux mode 0 */
+}
+
+static void init_usb_phy(void)
+{
+	struct usb_common_regs *common0 = USB0_COMMON_BASE;
+	struct usb_common_regs *common1 = USB1_COMMON_BASE;
+	struct usb0_phy_regs *phy = USB0_PHY_BASE;
+	struct usb1_port_regs *port = USB1_PORT_BASE;
+	struct usb1_alignment_regs *align = USB1_ALIGNMENT_BASE;
+
+	writew(0x0100, &phy->reset);		/* set reset */
+	/* port0 = USB0, port1 = USB1 */
+	writew(0x0002, &phy->portsel);
+	writel(0x0001, &port->port1sel);	/* port1 = Host */
+	writew(0x0111, &phy->reset);		/* clear reset */
+
+	writew(0x4000, &common0->suspmode);
+	writew(0x4000, &common1->suspmode);
+
+#if defined(__LITTLE_ENDIAN)
+	writel(0x00000000, &align->ehcidatac);
+	writel(0x00000000, &align->ohcidatac);
+#endif
+}
+
+static void init_gether_mdio(void)
+{
+	struct gpio_regs *gpio = GPIO_BASE;
+
+	writew(readw(&gpio->pgcr) | 0x0004, &gpio->pgcr);
+	writeb(readb(&gpio->pgdr) | 0x02, &gpio->pgdr);	/* Use ET0-MDIO */
+}
+
+static void set_mac_to_sh_giga_eth_register(int channel, char *mac_string)
+{
+	struct ether_mac_regs *ether;
+	unsigned char mac[6];
+	unsigned long val;
+
+	eth_parse_enetaddr(mac_string, mac);
+
+	if (!channel)
+		ether = GETHER0_MAC_BASE;
+	else
+		ether = GETHER1_MAC_BASE;
+
+	val = (mac[0] << 24) | (mac[1] << 16) | (mac[2] << 8) | mac[3];
+	writel(val, &ether->mahr);
+	val = (mac[4] << 8) | mac[5];
+	writel(val, &ether->malr);
+}
+
+/*****************************************************************
+ * This PMB must be set on this timing. The lowlevel_init is run on
+ * Area 0(phys 0x00000000), so we have to map it.
+ *
+ * The new PMB table is following:
+ * ent	virt		phys		v	sz	c	wt
+ * 0	0xa0000000	0x40000000	1	128M	0	1
+ * 1	0xa8000000	0x48000000	1	128M	0	1
+ * 2	0xb0000000	0x50000000	1	128M	0	1
+ * 3	0xb8000000	0x58000000	1	128M	0	1
+ * 4	0x80000000	0x40000000	1	128M	1	1
+ * 5	0x88000000	0x48000000	1	128M	1	1
+ * 6	0x90000000	0x50000000	1	128M	1	1
+ * 7	0x98000000	0x58000000	1	128M	1	1
+ */
+static void set_pmb_on_board_init(void)
+{
+	struct mmu_regs *mmu = MMU_BASE;
+
+	/* clear ITLB */
+	writel(0x00000004, &mmu->mmucr);
+
+	/* delete PMB for SPIBOOT */
+	writel(0, PMB_ADDR_BASE(0));
+	writel(0, PMB_DATA_BASE(0));
+
+	/* add PMB for SDRAM(0x40000000 - 0x47ffffff) */
+	/*			ppn  ub v s1 s0  c  wt */
+	writel(mk_pmb_addr_val(0xa0), PMB_ADDR_BASE(0));
+	writel(mk_pmb_data_val(0x40, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(0));
+	writel(mk_pmb_addr_val(0xb0), PMB_ADDR_BASE(2));
+	writel(mk_pmb_data_val(0x50, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(2));
+	writel(mk_pmb_addr_val(0xb8), PMB_ADDR_BASE(3));
+	writel(mk_pmb_data_val(0x58, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(3));
+	writel(mk_pmb_addr_val(0x80), PMB_ADDR_BASE(4));
+	writel(mk_pmb_data_val(0x40, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(4));
+	writel(mk_pmb_addr_val(0x90), PMB_ADDR_BASE(6));
+	writel(mk_pmb_data_val(0x50, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(6));
+	writel(mk_pmb_addr_val(0x98), PMB_ADDR_BASE(7));
+	writel(mk_pmb_data_val(0x58, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(7));
+}
+
+int board_init(void)
+{
+	init_gpio();
+	set_pmb_on_board_init();
+
+	init_usb_phy();
+	init_gether_mdio();
+
+	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;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	struct gpio_regs *gpio = GPIO_BASE;
+
+	writew(readw(&gpio->pgcr) | 0x0040, &gpio->pgcr);
+	writeb(readb(&gpio->pgdr) & ~0x08, &gpio->pgdr); /* Reset */
+	udelay(1);
+	writeb(readb(&gpio->pgdr) | 0x08, &gpio->pgdr);	/* Release reset */
+	udelay(200);
+
+	return mmcif_mmc_init();
+}
+
+static int get_sh_eth_mac_raw(unsigned char *buf, int size)
+{
+	struct spi_flash *spi;
+	int ret;
+
+	spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
+	if (spi == NULL) {
+		printf("%s: spi_flash probe failed.\n", __func__);
+		return 1;
+	}
+
+	ret = spi_flash_read(spi, SH7752EVB_ETHERNET_MAC_BASE, size, buf);
+	if (ret) {
+		printf("%s: spi_flash read failed.\n", __func__);
+		spi_flash_free(spi);
+		return 1;
+	}
+	spi_flash_free(spi);
+
+	return 0;
+}
+
+static int get_sh_eth_mac(int channel, char *mac_string, unsigned char *buf)
+{
+	memcpy(mac_string, &buf[channel * (SH7752EVB_ETHERNET_MAC_SIZE + 1)],
+		SH7752EVB_ETHERNET_MAC_SIZE);
+	mac_string[SH7752EVB_ETHERNET_MAC_SIZE] = 0x00;	/* terminate */
+
+	return 0;
+}
+
+static void init_ethernet_mac(void)
+{
+	char mac_string[64];
+	char env_string[64];
+	int i;
+	unsigned char *buf;
+
+	buf = malloc(256);
+	if (!buf) {
+		printf("%s: malloc failed.\n", __func__);
+		return;
+	}
+	get_sh_eth_mac_raw(buf, 256);
+
+	/* Gigabit Ethernet */
+	for (i = 0; i < SH7752EVB_ETHERNET_NUM_CH; i++) {
+		get_sh_eth_mac(i, mac_string, buf);
+		if (i == 0)
+			setenv("ethaddr", mac_string);
+		else {
+			sprintf(env_string, "eth%daddr", i);
+			setenv(env_string, mac_string);
+		}
+		set_mac_to_sh_giga_eth_register(i, mac_string);
+	}
+
+	free(buf);
+}
+
+int board_late_init(void)
+{
+	init_ethernet_mac();
+
+	return 0;
+}
+
+int do_write_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int i, ret;
+	char mac_string[256];
+	struct spi_flash *spi;
+	unsigned char *buf;
+
+	if (argc != 3) {
+		buf = malloc(256);
+		if (!buf) {
+			printf("%s: malloc failed.\n", __func__);
+			return 1;
+		}
+
+		get_sh_eth_mac_raw(buf, 256);
+
+		/* print current MAC address */
+		for (i = 0; i < SH7752EVB_ETHERNET_NUM_CH; i++) {
+			get_sh_eth_mac(i, mac_string, buf);
+			printf("GETHERC ch%d = %s\n", i, mac_string);
+		}
+		free(buf);
+		return 0;
+	}
+
+	/* new setting */
+	memset(mac_string, 0xff, sizeof(mac_string));
+	sprintf(mac_string, "%s\t%s",
+		argv[1], argv[2]);
+
+	/* write MAC data to SPI rom */
+	spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
+	if (!spi) {
+		printf("%s: spi_flash probe failed.\n", __func__);
+		return 1;
+	}
+
+	ret = spi_flash_erase(spi, SH7752EVB_ETHERNET_MAC_BASE_SPI,
+				SH7752EVB_SPI_SECTOR_SIZE);
+	if (ret) {
+		printf("%s: spi_flash erase failed.\n", __func__);
+		return 1;
+	}
+
+	ret = spi_flash_write(spi, SH7752EVB_ETHERNET_MAC_BASE_SPI,
+				sizeof(mac_string), mac_string);
+	if (ret) {
+		printf("%s: spi_flash write failed.\n", __func__);
+		spi_flash_free(spi);
+		return 1;
+	}
+	spi_flash_free(spi);
+
+	puts("The writing of the MAC address to SPI ROM was completed.\n");
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	write_mac,	3,	1,	do_write_mac,
+	"write MAC address for GETHERC",
+	"[GETHERC ch0] [GETHERC ch1]\n"
+);
diff --git a/board/renesas/sh7752evb/spi-boot.c b/board/renesas/sh7752evb/spi-boot.c
new file mode 100644
index 0000000000..91565d44d7
--- /dev/null
+++ b/board/renesas/sh7752evb/spi-boot.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2012  Renesas Solutions Corp.
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License.  See the file "COPYING.LIB" in the main
+ * directory of this archive for more details.
+ */
+
+#include <common.h>
+
+#define CONFIG_RAM_BOOT_PHYS	CONFIG_SYS_TEXT_BASE
+#define CONFIG_SPI_ADDR		0x00000000
+#define CONFIG_SPI_LENGTH	CONFIG_SYS_MONITOR_LEN
+#define CONFIG_RAM_BOOT		CONFIG_SYS_TEXT_BASE
+
+#define SPIWDMADR	0xFE001018
+#define SPIWDMCNTR	0xFE001020
+#define SPIDMCOR	0xFE001028
+#define SPIDMINTSR	0xFE001188
+#define SPIDMINTMR	0xFE001190
+
+#define SPIDMINTSR_DMEND	0x00000004
+
+#define TBR	0xFE002000
+#define RBR	0xFE002000
+
+#define CR1	0xFE002008
+#define CR2	0xFE002010
+#define CR3	0xFE002018
+#define CR4	0xFE002020
+
+/* CR1 */
+#define SPI_TBE		0x80
+#define SPI_TBF		0x40
+#define SPI_RBE		0x20
+#define SPI_RBF		0x10
+#define SPI_PFONRD	0x08
+#define SPI_SSDB	0x04
+#define SPI_SSD		0x02
+#define SPI_SSA		0x01
+
+/* CR2 */
+#define SPI_RSTF	0x80
+#define SPI_LOOPBK	0x40
+#define SPI_CPOL	0x20
+#define SPI_CPHA	0x10
+#define SPI_L1M0	0x08
+
+/* CR4 */
+#define SPI_TBEI	0x80
+#define SPI_TBFI	0x40
+#define SPI_RBEI	0x20
+#define SPI_RBFI	0x10
+#define SPI_SpiS0	0x02
+#define SPI_SSS		0x01
+
+#define spi_write(val, addr)	(*(volatile unsigned long *)(addr)) = val
+#define spi_read(addr)		(*(volatile unsigned long *)(addr))
+
+/* M25P80 */
+#define M25_READ	0x03
+
+#define __uses_spiboot2	__attribute__((section(".spiboot2.text")))
+static void __uses_spiboot2 spi_reset(void)
+{
+	int timeout = 0x00100000;
+
+	/* Make sure the last transaction is finalized */
+	spi_write(0x00, CR3);
+	spi_write(0x02, CR1);
+	while (!(spi_read(CR4) & SPI_SpiS0)) {
+		if (timeout-- < 0)
+			break;
+	}
+	spi_write(0x00, CR1);
+
+	spi_write(spi_read(CR2) | SPI_RSTF, CR2);	/* fifo reset */
+	spi_write(spi_read(CR2) & ~SPI_RSTF, CR2);
+
+	spi_write(0, SPIDMCOR);
+}
+
+static void __uses_spiboot2 spi_read_flash(void *buf, unsigned long addr,
+					   unsigned long len)
+{
+	spi_write(M25_READ, TBR);
+	spi_write((addr >> 16) & 0xFF, TBR);
+	spi_write((addr >> 8) & 0xFF, TBR);
+	spi_write(addr & 0xFF, TBR);
+
+	spi_write(SPIDMINTSR_DMEND, SPIDMINTSR);
+	spi_write((unsigned long)buf, SPIWDMADR);
+	spi_write(len & 0xFFFFFFE0, SPIWDMCNTR);
+	spi_write(1, SPIDMCOR);
+
+	spi_write(0xff, CR3);
+	spi_write(spi_read(CR1) | SPI_SSDB, CR1);
+	spi_write(spi_read(CR1) | SPI_SSA, CR1);
+
+	while (!(spi_read(SPIDMINTSR) & SPIDMINTSR_DMEND))
+		;
+
+	/* Nagate SP0-SS0 */
+	spi_write(0, CR1);
+}
+
+void __uses_spiboot2 spiboot_main(void)
+{
+	void (*_start)(void) = (void *)CONFIG_SYS_TEXT_BASE;
+
+	spi_reset();
+	spi_read_flash((void *)CONFIG_RAM_BOOT_PHYS, CONFIG_SPI_ADDR,
+			CONFIG_SPI_LENGTH);
+
+	_start();
+}
diff --git a/board/renesas/sh7752evb/u-boot.lds b/board/renesas/sh7752evb/u-boot.lds
new file mode 100644
index 0000000000..28449b677a
--- /dev/null
+++ b/board/renesas/sh7752evb/u-boot.lds
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2007
+ * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * Copyright (C) 2012
+ * Yoshihiro Shimoda <yoshihiro.shimoda.uh@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.
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
+OUTPUT_ARCH(sh)
+ENTRY(_start)
+
+SECTIONS
+{
+	/*
+	 * entry and reloct_dst will be provided via ldflags
+	 */
+	. = .;
+
+	PROVIDE (_ftext = .);
+	PROVIDE (_fcode = .);
+	PROVIDE (_start = .);
+
+	.text :
+	{
+		KEEP(arch/sh/cpu/sh4/start.o		(.text))
+		*(.spiboot1.text)
+		*(.spiboot2.text)
+		. = ALIGN(8192);
+		common/env_embedded.o	(.ppcenv)
+		. = ALIGN(8192);
+		common/env_embedded.o	(.ppcenvr)
+		. = ALIGN(8192);
+		*(.text)
+		. = ALIGN(4);
+	} =0xFF
+	PROVIDE (_ecode = .);
+	.rodata :
+	{
+		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+		. = ALIGN(4);
+	}
+	PROVIDE (_etext = .);
+
+
+	PROVIDE (_fdata = .);
+	.data :
+	{
+		*(.data)
+		. = ALIGN(4);
+	}
+	PROVIDE (_edata = .);
+
+	PROVIDE (_fgot = .);
+	.got :
+	{
+		*(.got)
+		. = ALIGN(4);
+	}
+	PROVIDE (_egot = .);
+
+	.u_boot_list : {
+		#include <u-boot.lst>
+	}
+
+	PROVIDE (reloc_dst_end = .);
+	/* _reloc_dst_end = .; */
+
+	PROVIDE (bss_start = .);
+	PROVIDE (__bss_start = .);
+	.bss (NOLOAD) :
+	{
+		*(.bss)
+		. = ALIGN(4);
+	}
+	PROVIDE (bss_end = .);
+
+	PROVIDE (__bss_end__ = .);
+}