sh: Add support 32-Bit Extended Address Mode to sh7785lcr

We can built 'make sh7785lcr_32bit_config'. And add new command "pmb"
for this mode. This command changes PMB for using 512MB system memory.

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

6 files changed, 324 insertions, 2 deletions

diff --git a/board/renesas/sh7785lcr/config.mk b/board/renesas/sh7785lcr/config.mk
index 20807dfc52..66d35cb21d 100644
--- a/board/renesas/sh7785lcr/config.mk
+++ b/board/renesas/sh7785lcr/config.mk
@@ -22,4 +22,8 @@
 #
 # NOTE: Must match value used in u-boot.lds (in this directory).
 #
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
+
+ifndef TEXT_BASE
 TEXT_BASE = 0x0ff80000
+endif
diff --git a/board/renesas/sh7785lcr/lowlevel_init.S b/board/renesas/sh7785lcr/lowlevel_init.S
index f5ebeb9a7d..97920df47a 100644
--- a/board/renesas/sh7785lcr/lowlevel_init.S
+++ b/board/renesas/sh7785lcr/lowlevel_init.S
@@ -130,6 +130,46 @@ lbsc_29bit:
 	write32	CS6WCR_A,	CS_SD_WCR_D
 
 lbsc_end:
+#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	64M	0	0
+	 * 1	0xa4000000	0x04000000	1	16M	0	0
+	 * 2	0xa6000000	0x08000000	1	16M	0	0
+	 * 9	0x88000000	0x48000000	1	128M	1	1
+	 * 10	0x90000000	0x50000000	1	128M	1	1
+	 * 11	0x98000000	0x58000000	1	128M	1	1
+	 * 13	0xa8000000	0x48000000	1	128M	0	0
+	 * 14	0xb0000000	0x50000000	1	128M	0	0
+	 * 15	0xb8000000	0x58000000	1	128M	0	0
+	 */
+	write32	PMB_ADDR_FLASH_A,	PMB_ADDR_FLASH_D
+	write32	PMB_DATA_FLASH_A,	PMB_DATA_FLASH_D
+	write32	PMB_ADDR_CPLD_A,	PMB_ADDR_CPLD_D
+	write32	PMB_DATA_CPLD_A,	PMB_DATA_CPLD_D
+	write32	PMB_ADDR_USB_A,		PMB_ADDR_USB_D
+	write32	PMB_DATA_USB_A,		PMB_DATA_USB_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_C2_A,	PMB_ADDR_DDR_C2_D
+	write32	PMB_DATA_DDR_C2_A,	PMB_DATA_DDR_C2_D
+	write32	PMB_ADDR_DDR_C3_A,	PMB_ADDR_DDR_C3_D
+	write32	PMB_DATA_DDR_C3_A,	PMB_DATA_DDR_C3_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_DDR_N2_A,	PMB_ADDR_DDR_N2_D
+	write32	PMB_DATA_DDR_N2_A,	PMB_DATA_DDR_N2_D
+	write32	PMB_ADDR_DDR_N3_A,	PMB_ADDR_DDR_N3_D
+	write32	PMB_DATA_DDR_N3_A,	PMB_DATA_DDR_N3_D
+
+	write32	PASCR_A,	PASCR_INIT
+	mov.l	DUMMY_ADDR, r0
+	icbi	@r0
+#endif
 
 	write32	CCR_A,	CCR_D
 
@@ -140,7 +180,11 @@ lbsc_end:
 
 /*------- LBSC -------*/
 MMSELR_A:	.long	0xfc400020
+#if defined(CONFIG_SH_32BIT)
+MMSELR_D:	.long	0xa5a50005
+#else
 MMSELR_D:	.long	0xa5a50002
+#endif
 
 /*------- DBSC2 -------*/
 #define DBSC2_BASE	0xfe800000
@@ -287,5 +331,55 @@ CS_SD_WCR_D:	.long	0x00030108
 CS_I2C_BCR_D:	.long	0x11111100
 CS_I2C_WCR_D:	.long	0x00000003
 
+#if defined(CONFIG_SH_32BIT)
+/*------- set PMB -------*/
+PMB_ADDR_FLASH_A:	.long	PMB_ADDR_BASE(0)
+PMB_ADDR_CPLD_A:	.long	PMB_ADDR_BASE(1)
+PMB_ADDR_USB_A:		.long	PMB_ADDR_BASE(2)
+PMB_ADDR_DDR_C1_A:	.long	PMB_ADDR_BASE(9)
+PMB_ADDR_DDR_C2_A:	.long	PMB_ADDR_BASE(10)
+PMB_ADDR_DDR_C3_A:	.long	PMB_ADDR_BASE(11)
+PMB_ADDR_DDR_N1_A:	.long	PMB_ADDR_BASE(13)
+PMB_ADDR_DDR_N2_A:	.long	PMB_ADDR_BASE(14)
+PMB_ADDR_DDR_N3_A:	.long	PMB_ADDR_BASE(15)
+
+PMB_ADDR_FLASH_D:	.long	mk_pmb_addr_val(0xa0)
+PMB_ADDR_CPLD_D:	.long	mk_pmb_addr_val(0xa4)
+PMB_ADDR_USB_D:		.long	mk_pmb_addr_val(0xa6)
+PMB_ADDR_DDR_C1_D:	.long	mk_pmb_addr_val(0x88)
+PMB_ADDR_DDR_C2_D:	.long	mk_pmb_addr_val(0x90)
+PMB_ADDR_DDR_C3_D:	.long	mk_pmb_addr_val(0x98)
+PMB_ADDR_DDR_N1_D:	.long	mk_pmb_addr_val(0xa8)
+PMB_ADDR_DDR_N2_D:	.long	mk_pmb_addr_val(0xb0)
+PMB_ADDR_DDR_N3_D:	.long	mk_pmb_addr_val(0xb8)
+
+PMB_DATA_FLASH_A:	.long	PMB_DATA_BASE(0)
+PMB_DATA_CPLD_A:	.long	PMB_DATA_BASE(1)
+PMB_DATA_USB_A:		.long	PMB_DATA_BASE(2)
+PMB_DATA_DDR_C1_A:	.long	PMB_DATA_BASE(9)
+PMB_DATA_DDR_C2_A:	.long	PMB_DATA_BASE(10)
+PMB_DATA_DDR_C3_A:	.long	PMB_DATA_BASE(11)
+PMB_DATA_DDR_N1_A:	.long	PMB_DATA_BASE(13)
+PMB_DATA_DDR_N2_A:	.long	PMB_DATA_BASE(14)
+PMB_DATA_DDR_N3_A:	.long	PMB_DATA_BASE(15)
+
+/*						ppn   ub v s1 s0  c  wt */
+PMB_DATA_FLASH_D:	.long	mk_pmb_data_val(0x00, 1, 1, 0, 1, 0, 1)
+PMB_DATA_CPLD_D:	.long	mk_pmb_data_val(0x04, 1, 1, 0, 0, 0, 1)
+PMB_DATA_USB_D:		.long	mk_pmb_data_val(0x08, 1, 1, 0, 0, 0, 1)
+PMB_DATA_DDR_C1_D:	.long	mk_pmb_data_val(0x48, 0, 1, 1, 0, 1, 1)
+PMB_DATA_DDR_C2_D:	.long	mk_pmb_data_val(0x50, 0, 1, 1, 0, 1, 1)
+PMB_DATA_DDR_C3_D:	.long	mk_pmb_data_val(0x58, 0, 1, 1, 0, 1, 1)
+PMB_DATA_DDR_N1_D:	.long	mk_pmb_data_val(0x48, 1, 1, 1, 0, 0, 1)
+PMB_DATA_DDR_N2_D:	.long	mk_pmb_data_val(0x50, 1, 1, 1, 0, 0, 1)
+PMB_DATA_DDR_N3_D:	.long	mk_pmb_data_val(0x58, 1, 1, 1, 0, 0, 1)
+
+DUMMY_ADDR:	.long	0xa0000000
+PASCR_29BIT_D:	.long	0x00000000
+PASCR_INIT:	.long	0x80000080	/* check booting mode */
+MMUCR_A:	.long	0xff000010
+MMUCR_D:	.long	0x00000004	/* clear ITLB */
+#endif	/* CONFIG_SH_32BIT */
+
 CCR_A:		.long	0xff00001c
 CCR_D:		.long	0x0000090b
diff --git a/board/renesas/sh7785lcr/sh7785lcr.c b/board/renesas/sh7785lcr/sh7785lcr.c
index 786c758a92..1d81688753 100644
--- a/board/renesas/sh7785lcr/sh7785lcr.c
+++ b/board/renesas/sh7785lcr/sh7785lcr.c
@@ -54,3 +54,35 @@ int board_eth_init(bd_t *bis)
 {
 	return pci_eth_init(bis);
 }
+
+#if defined(CONFIG_SH_32BIT)
+int do_pmb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	/* clear ITLB */
+	writel(0x00000004, 0xff000010);
+
+	/* delete PMB for peripheral */
+	writel(0, PMB_ADDR_BASE(0));
+	writel(0, PMB_DATA_BASE(0));
+	writel(0, PMB_ADDR_BASE(1));
+	writel(0, PMB_DATA_BASE(1));
+	writel(0, PMB_ADDR_BASE(2));
+	writel(0, PMB_DATA_BASE(2));
+
+	/* add PMB for SDRAM(0x40000000 - 0x47ffffff) */
+	writel(mk_pmb_addr_val(0x80), PMB_ADDR_BASE(8));
+	writel(mk_pmb_data_val(0x40, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(8));
+	writel(mk_pmb_addr_val(0xa0), PMB_ADDR_BASE(12));
+	writel(mk_pmb_data_val(0x40, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(12));
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	pmb,	1,	1,	do_pmb,
+	"pmb     - PMB setting\n",
+	"\n"
+	"    - PMB setting for all SDRAM mapping\n"
+);
+#endif
+
diff --git a/board/renesas/sh7785lcr/u-boot.lds b/board/renesas/sh7785lcr/u-boot.lds
index 231769f3b3..446fb930f8 100644
--- a/board/renesas/sh7785lcr/u-boot.lds
+++ b/board/renesas/sh7785lcr/u-boot.lds
@@ -1,7 +1,7 @@
 /*
  * Copyrigth (c) 2007
  * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- * Copyrigth (c) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ * Copyrigth (c) 2008-2009 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -28,7 +28,7 @@ ENTRY(_start)
 
 SECTIONS
 {
-	. = 0x08000000 + (128 * 1024 * 1024) - (512 * 1024);
+	. = 0x88000000 + (128 * 1024 * 1024) - (512 * 1024);
 
 	PROVIDE (reloc_dst = .);
 
diff --git a/board/renesas/sh7785lcr/u-boot_29bit b/board/renesas/sh7785lcr/u-boot_29bit
new file mode 100644
index 0000000000..231769f3b3
--- /dev/null
+++ b/board/renesas/sh7785lcr/u-boot_29bit
@@ -0,0 +1,96 @@
+/*
+ * Copyrigth (c) 2007
+ * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ * Copyrigth (c) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@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
+{
+	. = 0x08000000 + (128 * 1024 * 1024) - (512 * 1024);
+
+	PROVIDE (reloc_dst = .);
+
+	PROVIDE (_ftext = .);
+	PROVIDE (_fcode = .);
+	PROVIDE (_start = .);
+
+	.text :
+	{
+		cpu/sh4/start.o		(.text)
+		. = ALIGN(8192);
+		common/env_embedded.o	(.ppcenv)
+		. = ALIGN(8192);
+		common/env_embedded.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 = .);
+}
diff --git a/board/renesas/sh7785lcr/u-boot_32bit b/board/renesas/sh7785lcr/u-boot_32bit
new file mode 100644
index 0000000000..446fb930f8
--- /dev/null
+++ b/board/renesas/sh7785lcr/u-boot_32bit
@@ -0,0 +1,96 @@
+/*
+ * Copyrigth (c) 2007
+ * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ * Copyrigth (c) 2008-2009 Yoshihiro Shimoda <shimoda.yoshihiro@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
+{
+	. = 0x88000000 + (128 * 1024 * 1024) - (512 * 1024);
+
+	PROVIDE (reloc_dst = .);
+
+	PROVIDE (_ftext = .);
+	PROVIDE (_fcode = .);
+	PROVIDE (_start = .);
+
+	.text :
+	{
+		cpu/sh4/start.o		(.text)
+		. = ALIGN(8192);
+		common/env_embedded.o	(.ppcenv)
+		. = ALIGN(8192);
+		common/env_embedded.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 = .);
+}