sh: Add support Renesas sh7722 processor and Hitachi MS7722SE01 board

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

5 files changed, 542 insertions, 0 deletions

diff --git a/board/ms7722se/Makefile b/board/ms7722se/Makefile
new file mode 100644
index 0000000..94469f7
--- /dev/null
+++ b/board/ms7722se/Makefile
@@ -0,0 +1,48 @@
+#
+# Copyright (C) 2007
+# Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+#     
+# Copyright (C) 2007
+# Kenati Technologies, Inc.
+#
+# board/ms7722se/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	:= ms7722se.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/ms7722se/config.mk b/board/ms7722se/config.mk
new file mode 100644
index 0000000..e4ca55a
--- /dev/null
+++ b/board/ms7722se/config.mk
@@ -0,0 +1,32 @@
+#
+# Copyright (C) 2007
+# Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+#
+# Copyright (C) 2007
+# Kenati Technologies, Inc.
+#
+# board/ms7722se/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).
+#
+
+TEXT_BASE = 0x8FFC0000
+
diff --git a/board/ms7722se/lowlevel_init.S b/board/ms7722se/lowlevel_init.S
new file mode 100644
index 0000000..e0d519c
--- /dev/null
+++ b/board/ms7722se/lowlevel_init.S
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2007
+ * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *    
+ * Copyright (C) 2007
+ * Kenati Technologies, Inc.
+ *
+ * board/ms7722se/lowlevel_init.S
+ *
+ * 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>
+
+/*
+ *  Board specific low level init code, called _very_ early in the
+ *  startup sequence. Relocation to SDRAM has not happened yet, no
+ *  stack is available, bss section has not been initialised, etc.
+ *
+ *  (Note: As no stack is available, no subroutines can be called...).
+ */
+
+	.global	lowlevel_init
+
+	.text
+	.align	2
+
+lowlevel_init:
+
+	mov.l	CCR_A, r1	! Address of Cache Control Register
+	mov.l	CCR_D, r0	! Instruction Cache Invalidate
+	mov.l	r0, @r1
+
+	mov.l	MMUCR_A, r1	! Address of MMU Control Register
+	mov.l	MMUCR_D, r0	! TI == TLB Invalidate bit
+	mov.l	r0, @r1
+
+	mov.l	MSTPCR0_A, r1	! Address of Power Control Register 0
+	mov.l	MSTPCR0_D, r0	! 
+	mov.l	r0, @r1
+
+	mov.l	MSTPCR2_A, r1	! Address of Power Control Register 2
+	mov.l	MSTPCR2_D, r0	! 
+	mov.l	r0, @r1
+
+	mov.l	SBSCR_A, r1	! 
+	mov.w	SBSCR_D, r0	! 
+	mov.w	r0, @r1
+
+	mov.l	PSCR_A, r1	! 
+	mov.w	PSCR_D, r0	! 
+	mov.w	r0, @r1
+
+!	mov.l	RWTCSR_A, r1	! 0xA4520004 (Watchdog Control / Status Register)
+!	mov.w	RWTCSR_D_1, r0	! 0xA507 -> timer_STOP/WDT_CLK=max
+!	mov.w	r0, @r1
+
+	mov.l	RWTCNT_A, r1	! 0xA4520000 (Watchdog Count Register)
+	mov.w	RWTCNT_D, r0	! 0x5A00 -> Clear
+	mov.w	r0, @r1
+
+	mov.l	RWTCSR_A, r1	! 0xA4520004 (Watchdog Control / Status Register)
+	mov.w	RWTCSR_D_2, r0	! 0xA504 -> timer_STOP/CLK=500ms
+	mov.w	r0, @r1
+
+	mov.l	FRQCR_A, r1		! 0xA4150000 Frequency control register
+	mov.l	FRQCR_D, r0	! 
+	mov.l	r0, @r1
+
+	mov.l	CCR_A, r1		! Address of Cache Control Register
+	mov.l	CCR_D_2, r0	! ??
+	mov.l	r0, @r1
+
+bsc_init:
+
+	mov.l	PSELA_A, r1
+	mov.w	PSELA_D, r0
+	mov.w	r0, @r1
+
+	mov.l	DRVCR_A, r1
+	mov.w	DRVCR_D, r0
+	mov.w	r0, @r1
+
+	mov.l	PCCR_A, r1
+	mov.w	PCCR_D, r0
+	mov.w	r0, @r1
+
+	mov.l	PECR_A, r1
+	mov.w	PECR_D, r0
+	mov.w	r0, @r1
+
+	mov.l	PJCR_A, r1
+	mov.w	PJCR_D, r0
+	mov.w	r0, @r1
+
+	mov.l	PXCR_A, r1
+	mov.w	PXCR_D, r0
+	mov.w	r0, @r1
+
+	mov.l	CMNCR_A, r1	! CMNCR address -> R1
+	mov.l 	CMNCR_D, r0	! CMNCR data    -> R0
+	mov.l	r0, @r1		! CMNCR set
+
+	mov.l	CS0BCR_A, r1	! CS0BCR address -> R1
+	mov.l 	CS0BCR_D, r0	! CS0BCR data    -> R0
+	mov.l	r0, @r1		! CS0BCR set
+
+	mov.l	CS2BCR_A, r1	! CS2BCR address -> R1
+	mov.l	CS2BCR_D, r0	! CS2BCR data    -> R0
+	mov.l	r0, @r1		! CS2BCR set
+
+	mov.l	CS4BCR_A, r1	! CS4BCR address -> R1
+	mov.l	CS4BCR_D, r0	! CS4BCR data    -> R0
+	mov.l	r0, @r1		! CS4BCR set
+
+	mov.l	CS5ABCR_A, r1	! CS5ABCR address -> R1
+	mov.l 	CS5ABCR_D, r0	! CS5ABCR data    -> R0
+	mov.l	r0, @r1		! CS5ABCR set
+
+	mov.l	CS5BBCR_A, r1	! CS5BBCR address -> R1
+	mov.l 	CS5BBCR_D, r0	! CS5BBCR data    -> R0
+	mov.l	r0, @r1		! CS5BBCR set
+
+	mov.l	CS6ABCR_A, r1	! CS6ABCR address -> R1
+	mov.l 	CS6ABCR_D, r0	! CS6ABCR data    -> R0
+	mov.l	r0, @r1		! CS6ABCR set
+
+	mov.l	CS0WCR_A, r1	! CS0WCR address -> R1
+	mov.l 	CS0WCR_D, r0	! CS0WCR data    -> R0
+	mov.l	r0, @r1		! CS0WCR set
+
+	mov.l	CS2WCR_A, r1	! CS2WCR address -> R1
+	mov.l 	CS2WCR_D, r0	! CS2WCR data    -> R0
+	mov.l	r0, @r1		! CS2WCR set
+
+	mov.l	CS4WCR_A, r1	! CS4WCR address -> R1
+	mov.l 	CS4WCR_D, r0	! CS4WCR data    -> R0
+	mov.l	r0, @r1		! CS4WCR set
+
+	mov.l	CS5AWCR_A, r1	! CS5AWCR address -> R1
+	mov.l 	CS5AWCR_D, r0	! CS5AWCR data    -> R0
+	mov.l	r0, @r1		! CS5AWCR set
+
+	mov.l	CS5BWCR_A, r1	! CS5BWCR address -> R1
+	mov.l 	CS5BWCR_D, r0	! CS5BWCR data    -> R0
+	mov.l	r0, @r1		! CS5BWCR set
+
+	mov.l	CS6AWCR_A, r1	! CS6AWCR address -> R1
+	mov.l 	CS6AWCR_D, r0	! CS6AWCR data    -> R0
+	mov.l	r0, @r1		! CS6AWCR set
+
+	! SDRAM initialization
+	mov.l	SDCR_A, r1	! SB_SDCR address -> R1
+	mov.l	SDCR_D, r0	! SB_SDCR data    -> R0
+	mov.l	r0, @r1		! SB_SDCR set
+
+	mov.l	SDWCR_A, r1	! SB_SDWCR address -> R1
+	mov.l	SDWCR_D, r0	! SB_SDWCR data    -> R0
+	mov.l	r0, @r1		! SB_SDWCR set
+
+	mov.l	SDPCR_A, r1	! SB_SDPCR address -> R1
+	mov.l	SDPCR_D, r0	! SB_SDPCR data    -> R0
+	mov.l	r0, @r1		! SB_SDPCR set
+
+	mov.l	RTCOR_A, r1	! SB_RTCOR address -> R1
+	mov.l	RTCOR_D, r0	! SB_RTCOR data    -> R0
+	mov.l	r0, @r1		! SB_RTCOR set
+
+	mov.l	RTCSR_A, r1	! SB_RTCSR address -> R1
+	mov.l	RTCSR_D, r0	! SB_RTCSR data    -> R0
+	mov.l	r0, @r1		! SB_RTCSR set
+
+	mov.l	SDMR3_A, r1	! SDMR3 address -> R1
+	mov 	#0x00, r0	! SDMR3 data    -> R0
+	mov.b	r0, @r1		! SDMR3 set
+
+	! BL bit off (init = ON)  (?!?)
+
+	stc	sr, r0				! BL bit off(init=ON)
+	mov.l	SR_MASK_D, r1
+	and	r1, r0
+	ldc	r0, sr
+
+	rts
+	mov	#0, r0
+
+
+
+	.align	2
+
+CCR_A:		.long	CCR			
+MMUCR_A:	.long	MMUCR
+MSTPCR0_A:	.long	MSTPCR0
+MSTPCR2_A:	.long	MSTPCR2
+SBSCR_A:	.long	SBSCR
+PSCR_A:		.long	PSCR
+RWTCSR_A:	.long	RWTCSR
+RWTCNT_A:	.long	RWTCNT
+FRQCR_A:	.long	FRQCR
+
+CCR_D:		.long	0x00000800
+CCR_D_2:	.long	0x00000103
+MMUCR_D:	.long	0x00000004
+MSTPCR0_D:	.long	0x00001001
+MSTPCR2_D:	.long	0xffffffff
+FRQCR_D:	.long	0x07022538
+
+PSELA_A:	.long   0xa405014E
+PSELA_D:	.word   0x0A10
+        .align 2
+
+DRVCR_A:	.long   0xa405018A
+DRVCR_D:	.word   0x0554
+	.align 2
+
+PCCR_A:		.long   0xa4050104
+PCCR_D:		.word   0x8800
+	.align 2
+
+PECR_A:		.long   0xa4050108
+PECR_D:		.word   0x0000
+	.align 2
+
+PJCR_A:		.long   0xa4050110
+PJCR_D:		.word   0x1000
+	.align 2
+
+PXCR_A:		.long   0xa4050148
+PXCR_D:		.word   0x0AAA
+	.align 2
+
+CMNCR_A:	.long	CMNCR
+CMNCR_D:	.long	0x00000013
+CS0BCR_A:	.long	CS0BCR		! Flash bank 1
+CS0BCR_D:	.long	0x24920400
+CS2BCR_A:	.long	CS2BCR		! SRAM
+CS2BCR_D:	.long	0x24920400
+CS4BCR_A:	.long	CS4BCR		! FPGA, PCMCIA, USB, ext slot
+CS4BCR_D:	.long	0x24920400
+CS5ABCR_A:	.long	CS5ABCR		! Ext slot
+CS5ABCR_D:	.long	0x24920400
+CS5BBCR_A:	.long	CS5BBCR		! USB controller
+CS5BBCR_D:	.long	0x24920400
+CS6ABCR_A:	.long	CS6ABCR		! Ethernet
+CS6ABCR_D:	.long	0x24920400
+
+CS0WCR_A:	.long	CS0WCR
+CS0WCR_D:	.long	0x00000300
+CS2WCR_A:	.long	CS2WCR
+CS2WCR_D:	.long	0x00000300
+CS4WCR_A:	.long	CS4WCR
+CS4WCR_D:	.long	0x00000300
+CS5AWCR_A:	.long	CS5AWCR
+CS5AWCR_D:	.long	0x00000300
+CS5BWCR_A:	.long	CS5BWCR
+CS5BWCR_D:	.long	0x00000300
+CS6AWCR_A:	.long	CS6AWCR
+CS6AWCR_D:	.long	0x00000300
+
+SDCR_A:		.long	SBSC_SDCR
+SDCR_D:		.long	0x00020809
+SDWCR_A:	.long	SBSC_SDWCR
+SDWCR_D:	.long	0x00164d0d
+SDPCR_A:	.long	SBSC_SDPCR
+SDPCR_D:	.long	0x00000087
+RTCOR_A:	.long	SBSC_RTCOR
+RTCOR_D:	.long	0xA55A0034
+RTCSR_A:	.long	SBSC_RTCSR
+RTCSR_D:	.long	0xA55A0010
+SDMR3_A:	.long	0xFE500180
+
+	.align	1
+
+SBSCR_D:	.word	0x0040
+PSCR_D:		.word	0x0000
+RWTCSR_D_1:	.word	0xA507
+RWTCSR_D_2:	.word	0xA507
+RWTCNT_D:	.word	0x5A00
+
+SR_MASK_D:	.long	0xEFFFFF0F
diff --git a/board/ms7722se/ms7722se.c b/board/ms7722se/ms7722se.c
new file mode 100644
index 0000000..3eeb1b7
--- /dev/null
+++ b/board/ms7722se/ms7722se.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2007
+ * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * Copyright (C) 2007
+ * Kenati Technologies, Inc.
+ * 
+ * board/ms7722se/ms7722se.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
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+#define LED_BASE	0xB0800000
+
+int checkboard(void)
+{
+	puts("BOARD: Hitachi UL MS7722SE\n");
+	return 0;
+}
+
+int board_init(void)
+{
+	/* Setup PTXMD[1:0] for /CS6A */
+	outw(inw(PXCR) & ~0xf000, PXCR);
+
+	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;
+}
+
+void led_set_state (unsigned short value)
+{
+	*((volatile unsigned short *) LED_BASE) = (value & 0xFF);
+}
+
diff --git a/board/ms7722se/u-boot.lds b/board/ms7722se/u-boot.lds
new file mode 100644
index 0000000..24c2184
--- /dev/null
+++ b/board/ms7722se/u-boot.lds
@@ -0,0 +1,106 @@
+/*
+ * Copyrigth (c) 2007
+ * 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).
+	   
+	*/
+	. = 0x8C000000 + (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 = .);
+}
+