sh: Add support Renesas Solutions R2D plus board

R2D plus is SH reference board used with SH7751R.
This board has 266Mhz CPU, 64MB SDRAM, Cardbus, CF interface,
one PCI bus, VGA, and two Ethernet controller.

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

5 files changed, 401 insertions, 0 deletions

diff --git a/board/r2dplus/Makefile b/board/r2dplus/Makefile
new file mode 100644
index 0000000000..ed609ea67e
--- /dev/null
+++ b/board/r2dplus/Makefile
@@ -0,0 +1,43 @@
+#
+# Copyright (C) 2007,2008
+# 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 $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= r2dplus.o
+SOBJS	:= lowlevel_init.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+	$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#################################################################
diff --git a/board/r2dplus/config.mk b/board/r2dplus/config.mk
new file mode 100644
index 0000000000..1ec7dcc605
--- /dev/null
+++ b/board/r2dplus/config.mk
@@ -0,0 +1,23 @@
+#
+# Copyright (C) 2007,2008
+# 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
+#
+#
+# NOTE: Must match value used in u-boot.lds (in this directory).
+#
+TEXT_BASE = 0x0FFC0000
diff --git a/board/r2dplus/lowlevel_init.S b/board/r2dplus/lowlevel_init.S
new file mode 100644
index 0000000000..5755de87b9
--- /dev/null
+++ b/board/r2dplus/lowlevel_init.S
@@ -0,0 +1,154 @@
+/*
+ * modified from SH-IPL+g (init-r0p751rlc0011rl.S)
+ * Initial Register Data for R0P751RLC0011RL (SH7751R 240MHz/120MHz/60MHz)
+ * Coyright (c) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+*/
+
+#include <config.h>
+#include <version.h>
+
+#include <asm/processor.h>
+
+	.global lowlevel_init
+	.text
+	.align  2
+
+lowlevel_init:
+
+	mov.l	CCR_A, r1
+	mov.l	CCR_D_D, r0
+	mov.l	r0,@r1
+
+	mov.l	MMUCR_A,r1
+	mov.l	MMUCR_D,r0
+	mov.w	r0,@r1
+
+	mov.l	BCR1_A,r1
+	mov.l	BCR1_D,r0
+	mov.l	r0,@r1
+
+	mov.l	BCR2_A,r1
+	mov.l	BCR2_D,r0
+	mov.w	r0,@r1
+
+	mov.l	BCR3_A,r1
+	mov.l	BCR3_D,r0
+	mov.w	r0,@r1
+
+	mov.l	BCR4_A,r1
+	mov.l	BCR4_D,r0
+	mov.l	r0,@r1
+
+	mov.l	WCR1_A,r1
+	mov.l	WCR1_D,r0
+	mov.l	r0,@r1
+
+	mov.l	WCR2_A,r1
+	mov.l	WCR2_D,r0
+	mov.l	r0,@r1
+
+	mov.l	WCR3_A,r1
+	mov.l	WCR3_D,r0
+	mov.l	r0,@r1
+
+	mov.l	PCR_A,r1
+	mov.l	PCR_D,r0
+	mov.w	r0,@r1
+
+	mov.l	LED_A,r1
+	mov	#0xff,r0
+	mov.w	r0,@r1
+
+	mov.l	MCR_A,r1
+	mov.l	MCR_D1,r0
+	mov.l	r0,@r1
+
+	mov.l	RTCNT_A,r1
+	mov.l	RTCNT_D,r0
+	mov.w	r0,@r1
+
+	mov.l	RTCOR_A,r1
+	mov.l	RTCOR_D,r0
+	mov.w	r0,@r1
+
+	mov.l	RFCR_A,r1
+	mov.l	RFCR_D,r0
+	mov.w	r0,@r1
+
+	mov.l	RTCSR_A,r1
+	mov.l	RTCSR_D,r0
+	mov.w	r0,@r1
+
+	mov.l	SDMR3_A,r1
+	mov	#0x55,r0
+	mov.b	r0,@r1
+
+	/* Wait DRAM refresh 30 times */
+	mov.l	RFCR_A,r1
+	mov	#30,r3
+1:
+	mov.w	@r1,r0
+	extu.w	r0,r2
+	cmp/hi	r3,r2
+	bf	1b
+
+	mov.l	MCR_A,r1
+	mov.l	MCR_D2,r0
+	mov.l	r0,@r1
+
+	mov.l	SDMR3_A,r1
+	mov	#0,r0
+	mov.b	r0,@r1
+
+	mov.l	IRLMASK_A,r1
+	mov.l	IRLMASK_D,r0
+	mov.l	r0,@r1
+
+	mov.l	CCR_A, r1
+	mov.l	CCR_D_E, r0
+	mov.l	r0, @r1
+
+	rts
+	nop
+
+	.align	2
+CCR_A:		.long	CCR		/* Cache Control Register */
+CCR_D_D:	.long	0x0808		/* Flush the cache, disable */
+CCR_D_E:	.long	0x8000090B
+
+FRQCR_A:	.long	FRQCR		/* FRQCR Address */
+FRQCR_D:	.long	0x00000e0a	/* 03/07/15 modify */
+BCR1_A:	.long	BCR1		/* BCR1 Address */
+BCR1_D:	.long	0x00180008
+BCR2_A:	.long	BCR2		/* BCR2 Address */
+BCR2_D:	.long   0xabe8
+BCR3_A:	.long	BCR3		/* BCR3 Address */
+BCR3_D:	.long	0x0000
+BCR4_A:	.long	BCR4		/* BCR4 Address */
+BCR4_D:	.long	0x00000010
+WCR1_A:	.long	WCR1		/* WCR1 Address */
+WCR1_D:	.long	0x33343333
+WCR2_A:	.long	WCR2		/* WCR2 Address */
+WCR2_D:	.long	0xcff86fbf
+WCR3_A:	.long	WCR3		/* WCR3 Address */
+WCR3_D:	.long	0x07777707
+LED_A:		.long	0x04000036	/* LED Address */
+RTCNT_A:	.long	RTCNT		/* RTCNT Address */
+RTCNT_D:	.long	0xA500		/* RTCNT Write Code A5h Data 00h */
+RTCOR_A:	.long	RTCOR		/* RTCOR Address */
+RTCOR_D:	.long	0xA534		/* RTCOR Write Code  */
+RTCSR_A:	.long	RTCSR		/* RTCSR Address */
+RTCSR_D:	.long	0xA510		/* RTCSR Write Code */
+SDMR3_A:	.long   0xFF9400CC	/* SDMR3 Address */
+SDMR3_D:	.long	0x55
+MCR_A:		.long	MCR		/* MCR Address */
+MCR_D1:	.long	0x081901F4	/* MRSET:'0' */
+MCR_D2:	.long	0x481901F4	/* MRSET:'1' */
+RFCR_A:	.long	RFCR		/* RFCR Address */
+RFCR_D:	.long	0xA400		/* RFCR Write Code A4h Data 00h */
+PCR_A:		.long	PCR		/* PCR Address */
+PCR_D:		.long	0x0000
+MMUCR_A:	.long	MMUCR		/* MMUCCR Address */
+MMUCR_D:	.long	0x00000000	/* MMUCCR Data */
+IRLMASK_A:	.long	0xA4000000	/* IRLMASK Address */
+IRLMASK_D:	.long	0x00000000	/* IRLMASK Data */
diff --git a/board/r2dplus/r2dplus.c b/board/r2dplus/r2dplus.c
new file mode 100644
index 0000000000..2ee3ea2f3f
--- /dev/null
+++ b/board/r2dplus/r2dplus.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2007,2008
+ * 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
+ */
+
+#include <common.h>
+#include <ide.h>
+#include <asm/processor.h>
+#include <asm/pci.h>
+
+int checkboard(void)
+{
+	puts("BOARD: Renesas Solutions R2D Plus\n");
+	return 0;
+}
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_memstart = CFG_SDRAM_BASE;
+	gd->bd->bi_memsize = CFG_SDRAM_SIZE;
+	printf("DRAM:  %dMB\n", CFG_SDRAM_SIZE / (1024 * 1024));
+	return 0;
+}
+
+int board_late_init(void)
+{
+	return 0;
+}
+
+#define FPGA_BASE          0xA4000000
+#define FPGA_CFCTL         (FPGA_BASE + 0x04)
+#define FPGA_CFPOW         (FPGA_BASE + 0x06)
+#define FPGA_CFCDINTCLR    (FPGA_BASE + 0x2A)
+
+void ide_set_reset (int idereset)
+{
+	/* if reset = 1 IDE reset will be asserted */
+	if (idereset){
+		(*(vu_short *)FPGA_CFCTL) = 0x432;
+		(*(vu_short *)FPGA_CFPOW) |= 0x02;
+		(*(vu_short *)FPGA_CFCDINTCLR) = 0x01;
+	}
+}
+
+#if defined(CONFIG_PCI)
+static struct pci_controller hose;
+void pci_init_board(void)
+{
+	pci_sh7751_init( &hose );
+}
+#endif /* CONFIG_PCI */
diff --git a/board/r2dplus/u-boot.lds b/board/r2dplus/u-boot.lds
new file mode 100644
index 0000000000..96d8d81acf
--- /dev/null
+++ b/board/r2dplus/u-boot.lds
@@ -0,0 +1,105 @@
+/*
+ * Copyrigth (c) 2007,2008
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
+OUTPUT_ARCH(sh)
+ENTRY(_start)
+
+SECTIONS
+{
+	/*
+	   Base address of internal SDRAM is 0x0C000000.
+	   Although size of SDRAM can be either 16 or 32 MBytes,
+	   we assume 16 MBytes (ie ignore upper half if the full
+	   32 MBytes is present).
+
+	   NOTE: This address must match with the definition of
+	   TEXT_BASE in config.mk (in this directory).
+
+	*/
+	. = 0x0C000000 + (64*1024*1024) - (256*1024);
+
+	PROVIDE (reloc_dst = .);
+
+	PROVIDE (_ftext = .);
+	PROVIDE (_fcode = .);
+	PROVIDE (_start = .);
+
+	.text :
+	{
+		cpu/sh4/start.o		(.text)
+		. = ALIGN(8192);
+		common/environment.o	(.ppcenv)
+		. = ALIGN(8192);
+		common/environment.o	(.ppcenvr)
+		. = ALIGN(8192);
+		*(.text)
+		. = ALIGN(4);
+	} =0xFF
+	PROVIDE (_ecode = .);
+	.rodata :
+	{
+		*(.rodata)
+		. = ALIGN(4);
+	}
+	PROVIDE (_etext = .);
+
+
+	PROVIDE (_fdata = .);
+	.data :
+	{
+		*(.data)
+		. = ALIGN(4);
+	}
+	PROVIDE (_edata = .);
+
+	PROVIDE (_fgot = .);
+	.got :
+	{
+		*(.got)
+		. = ALIGN(4);
+	}
+	PROVIDE (_egot = .);
+
+	PROVIDE (__u_boot_cmd_start = .);
+	.u_boot_cmd :
+	{
+		*(.u_boot_cmd)
+		. = ALIGN(4);
+	}
+	PROVIDE (__u_boot_cmd_end = .);
+
+	PROVIDE (reloc_dst_end = .);
+	/* _reloc_dst_end = .; */
+
+	PROVIDE (bss_start = .);
+	PROVIDE (__bss_start = .);
+	.bss :
+	{
+		*(.bss)
+		. = ALIGN(4);
+	}
+	PROVIDE (bss_end = .);
+
+	PROVIDE (_end = .);
+}