Add support for SBC8641D. Board files.

Add support for Wind River's SBC8641D reference board.

Signed-off by: Joe Hamman <joe.hamman@embeddedspecialties.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Jon Loeliger <jdl@freescale.com>

5 files changed, 735 insertions, 0 deletions

diff --git a/board/sbc8641d/Makefile b/board/sbc8641d/Makefile
new file mode 100644
index 0000000..a90b725
--- /dev/null
+++ b/board/sbc8641d/Makefile
@@ -0,0 +1,52 @@
+#
+# (C) Copyright 2001
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS	:= $(BOARD).o
+SOBJS	:= init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+	rm -f $(OBJS) $(SOBJS)
+
+.PHONY: distclean
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude ($obj).depend
+
+#########################################################################
diff --git a/board/sbc8641d/config.mk b/board/sbc8641d/config.mk
new file mode 100644
index 0000000..dd1754d
--- /dev/null
+++ b/board/sbc8641d/config.mk
@@ -0,0 +1,30 @@
+# Copyright 2004 Freescale Semiconductor.
+# Modified by Jeff Brown
+#
+# 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
+#
+
+#
+# sbc8641 board
+# default CCSRBAR is at 0xff700000
+#
+TEXT_BASE = 0xfff00000
+
+PLATFORM_CPPFLAGS += -DCONFIG_MPC86xx=1
+PLATFORM_CPPFLAGS += -DCONFIG_MPC8641=1 -maltivec -mabi=altivec -msoft-float
diff --git a/board/sbc8641d/init.S b/board/sbc8641d/init.S
new file mode 100644
index 0000000..c151d7e
--- /dev/null
+++ b/board/sbc8641d/init.S
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
+ * Copyright 2007 Embedded Specialties, Inc.
+ * Joe Hamman joe.hamman@embeddedspecialties.com
+ *
+ * Copyright 2004 Freescale Semiconductor.
+ * Jeff Brown
+ * Srikanth Srinivasan (srikanth.srinivasan@freescale.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
+ */
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <config.h>
+#include <mpc86xx.h>
+
+/*
+ * LAW(Local Access Window) configuration:
+ *
+ * 0x0000_0000	0x0fff_ffff	DDR1	256M
+ * 0x1000_0000	0x1fff_ffff	DDR2	256M
+ * 0xe000_0000	0xffff_ffff	LBC	512M
+ *
+ * Notes:
+ *   CCSRBAR doesn't need a configured Local Access Window.
+ *   If flash is 8M at default position (last 8M), no LAW needed.
+ */
+
+# DDR Bank 1
+# #define LAWBAR1 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff)
+# #define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_256M))
+
+# DDR Bank 2
+# #define LAWBAR2 ((CFG_DDR_SDRAM_BASE2>>12) & 0xffffff)
+# #define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_256M))
+
+# LBC
+# #define LAWBAR3 ((0xe0000000>>12) & 0xffffff)
+# #define LAWAR3 (LAWAR_EN & (LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_512M)))
+
+/*
+ * LAW (Local Access Window) configuration:
+ *
+ * 0x0000_0000	DDR			256M
+ * 0x1000_0000	DDR2			256M
+ * 0x8000_0000	PCI1 MEM		512M
+ * 0xa000_0000	PCI2 MEM		512M
+ * 0xc000_0000	RapidIO			512M
+ * 0xe200_0000	PCI1 IO			16M
+ * 0xe300_0000	PCI2 IO			16M
+ * 0xf800_0000	CCSRBAR			2M
+ * 0xfe00_0000	FLASH (boot bank)	32M
+ *
+ */
+
+#define LAWBAR1 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff)
+#define LAWAR1	(LAWAR_EN | LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_256M))
+
+#define LAWBAR2 ((CFG_PCI1_MEM_BASE>>12) & 0xffffff)
+#define LAWAR2	(LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M))
+
+#define LAWBAR3 ((CFG_PCI2_MEM_BASE>>12) & 0xffffff)
+#define LAWAR3	(~LAWAR_EN & (LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_512M)))
+
+#define LAWBAR4 ((0xf8000000>>12) & 0xffffff)
+#define LAWAR4	(LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_2M))
+
+#define LAWBAR5 ((CFG_PCI1_IO_BASE>>12) & 0xffffff)
+#define LAWAR5	(LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_16M))
+
+#define LAWBAR6 ((CFG_PCI2_IO_BASE>>12) & 0xffffff)
+#define LAWAR6	(~LAWAR_EN &( LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_16M)))
+
+#define LAWBAR7 ((0xfe000000 >>12) & 0xffffff)
+#define LAWAR7	(LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_32M))
+
+#define LAWBAR8 ((CFG_DDR_SDRAM_BASE2>>12) & 0xffffff)
+#define LAWAR8 (LAWAR_EN | LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_256M))
+
+#define LAWBAR9 ((CFG_RIO_MEM_BASE>>12) & 0xfffff)
+#define LAWAR9  (LAWAR_EN | LAWAR_TRGT_IF_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M))
+
+	.section .bootpg, "ax"
+	.globl	law_entry
+law_entry:
+	lis	r7,CFG_CCSRBAR@h
+	ori	r7,r7,CFG_CCSRBAR@l
+
+	addi    r4,r7,0
+	addi    r5,r7,0
+
+	/* Skip LAWAR0, start at LAWAR1 */
+	lis     r6,LAWBAR1@h
+	ori     r6,r6,LAWBAR1@l
+	stwu    r6, 0xc28(r4)
+
+	lis     r6,LAWAR1@h
+	ori     r6,r6,LAWAR1@l
+	stwu    r6, 0xc30(r5)
+
+	/* LAWBAR2, LAWAR2 */
+	lis     r6,LAWBAR2@h
+	ori     r6,r6,LAWBAR2@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR2@h
+	ori     r6,r6,LAWAR2@l
+	stwu    r6, 0x20(r5)
+
+	/* LAWBAR3, LAWAR3 */
+	lis     r6,LAWBAR3@h
+	ori     r6,r6,LAWBAR3@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR3@h
+	ori     r6,r6,LAWAR3@l
+	stwu    r6, 0x20(r5)
+
+	/* LAWBAR4, LAWAR4 */
+	lis     r6,LAWBAR4@h
+	ori     r6,r6,LAWBAR4@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR4@h
+	ori     r6,r6,LAWAR4@l
+	stwu    r6, 0x20(r5)
+
+	/* LAWBAR5, LAWAR5 */
+	lis     r6,LAWBAR5@h
+	ori     r6,r6,LAWBAR5@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR5@h
+	ori     r6,r6,LAWAR5@l
+	stwu    r6, 0x20(r5)
+
+	/* LAWBAR6, LAWAR6 */
+	lis     r6,LAWBAR6@h
+	ori     r6,r6,LAWBAR6@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR6@h
+	ori     r6,r6,LAWAR6@l
+	stwu    r6, 0x20(r5)
+
+	/* LAWBAR7, LAWAR7 */
+	lis     r6,LAWBAR7@h
+	ori     r6,r6,LAWBAR7@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR7@h
+	ori     r6,r6,LAWAR7@l
+	stwu    r6, 0x20(r5)
+
+	/* LAWBAR8, LAWAR8 */
+	lis     r6,LAWBAR8@h
+	ori     r6,r6,LAWBAR8@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR8@h
+	ori     r6,r6,LAWAR8@l
+	stwu    r6, 0x20(r5)
+
+	/* LAWBAR9, LAWAR9 */
+	lis     r6,LAWBAR9@h
+	ori     r6,r6,LAWBAR9@l
+	stwu    r6, 0x20(r4)
+
+	lis     r6,LAWAR9@h
+	ori     r6,r6,LAWAR9@l
+	stwu    r6, 0x20(r5)
+
+	blr
diff --git a/board/sbc8641d/sbc8641d.c b/board/sbc8641d/sbc8641d.c
new file mode 100644
index 0000000..e5dd550
--- /dev/null
+++ b/board/sbc8641d/sbc8641d.c
@@ -0,0 +1,326 @@
+/*
+ * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
+ * Copyright 2007 Embedded Specialties, Inc.
+ * Joe Hamman joe.hamman@embeddedspecialties.com
+ *
+ * Copyright 2004 Freescale Semiconductor.
+ * Jeff Brown
+ * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
+ *
+ * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.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
+ */
+
+#include <common.h>
+#include <command.h>
+#include <pci.h>
+#include <asm/processor.h>
+#include <asm/immap_86xx.h>
+#include <spd.h>
+
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+extern void ft_cpu_setup (void *blob, bd_t * bd);
+#endif
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+extern void ddr_enable_ecc (unsigned int dram_size);
+#endif
+
+#if defined(CONFIG_SPD_EEPROM)
+#include "spd_sdram.h"
+#endif
+
+void sdram_init (void);
+long int fixed_sdram (void);
+
+int board_early_init_f (void)
+{
+	return 0;
+}
+
+int checkboard (void)
+{
+	puts ("Board: Wind River SBC8641D\n");
+
+#ifdef CONFIG_PCI
+
+	volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
+	volatile ccsr_gur_t *gur = &immap->im_gur;
+	volatile ccsr_pex_t *pex1 = &immap->im_pex1;
+
+	uint devdisr = gur->devdisr;
+	uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
+	uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
+	uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
+
+	if ((io_sel == 2 || io_sel == 3 || io_sel == 5
+	     || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
+	    && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
+		debug ("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
+		debug ("0x%08x=0x%08x ", &pex1->pme_msg_det, pex1->pme_msg_det);
+		if (pex1->pme_msg_det) {
+			pex1->pme_msg_det = 0xffffffff;
+			debug (" with errors.  Clearing.  Now 0x%08x",
+			       pex1->pme_msg_det);
+		}
+		debug ("\n");
+	} else {
+		puts ("PCI-EXPRESS 1: Disabled in hardware\n");
+	}
+
+#else
+	puts ("PCI-EXPRESS1: Disabled in configuration\n");
+#endif
+
+	return 0;
+}
+
+long int initdram (int board_type)
+{
+	long dram_size = 0;
+
+#if defined(CONFIG_SPD_EEPROM)
+	dram_size = spd_sdram ();
+#else
+	dram_size = fixed_sdram ();
+#endif
+
+#if defined(CFG_RAMBOOT)
+	puts ("    DDR: ");
+	return dram_size;
+#endif
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+	/*
+	 * Initialize and enable DDR ECC.
+	 */
+	ddr_enable_ecc (dram_size);
+#endif
+
+	puts ("    DDR: ");
+	return dram_size;
+}
+
+#if defined(CFG_DRAM_TEST)
+int testdram (void)
+{
+	uint *pstart = (uint *) CFG_MEMTEST_START;
+	uint *pend = (uint *) CFG_MEMTEST_END;
+	uint *p;
+
+	puts ("SDRAM test phase 1:\n");
+	for (p = pstart; p < pend; p++)
+		*p = 0xaaaaaaaa;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0xaaaaaaaa) {
+			printf ("SDRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+
+	puts ("SDRAM test phase 2:\n");
+	for (p = pstart; p < pend; p++)
+		*p = 0x55555555;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0x55555555) {
+			printf ("SDRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+
+	puts ("SDRAM test passed.\n");
+	return 0;
+}
+#endif
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*
+ * Fixed sdram init -- doesn't use serial presence detect.
+ */
+long int fixed_sdram (void)
+{
+#if !defined(CFG_RAMBOOT)
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile ccsr_ddr_t *ddr = &immap->im_ddr1;
+
+	ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
+	ddr->cs1_bnds = CFG_DDR_CS1_BNDS;
+	ddr->cs2_bnds = CFG_DDR_CS2_BNDS;
+	ddr->cs3_bnds = CFG_DDR_CS3_BNDS;
+	ddr->cs0_config = CFG_DDR_CS0_CONFIG;
+	ddr->cs1_config = CFG_DDR_CS1_CONFIG;
+	ddr->cs2_config = CFG_DDR_CS2_CONFIG;
+	ddr->cs3_config = CFG_DDR_CS3_CONFIG;
+	ddr->ext_refrec = CFG_DDR_EXT_REFRESH;
+	ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
+	ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
+	ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
+	ddr->sdram_cfg_1 = CFG_DDR_CFG_1A;
+	ddr->sdram_cfg_2 = CFG_DDR_CFG_2;
+	ddr->sdram_mode_1 = CFG_DDR_MODE_1;
+	ddr->sdram_mode_2 = CFG_DDR_MODE_2;
+	ddr->sdram_mode_cntl = CFG_DDR_MODE_CTL;
+	ddr->sdram_interval = CFG_DDR_INTERVAL;
+	ddr->sdram_data_init = CFG_DDR_DATA_INIT;
+	ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL;
+
+	asm ("sync;isync");
+
+	udelay (500);
+
+	ddr->sdram_cfg_1 = CFG_DDR_CFG_1B;
+	asm ("sync; isync");
+
+	udelay (500);
+	ddr = &immap->im_ddr2;
+
+	ddr->cs0_bnds = CFG_DDR2_CS0_BNDS;
+	ddr->cs1_bnds = CFG_DDR2_CS1_BNDS;
+	ddr->cs2_bnds = CFG_DDR2_CS2_BNDS;
+	ddr->cs3_bnds = CFG_DDR2_CS3_BNDS;
+	ddr->cs0_config = CFG_DDR2_CS0_CONFIG;
+	ddr->cs1_config = CFG_DDR2_CS1_CONFIG;
+	ddr->cs2_config = CFG_DDR2_CS2_CONFIG;
+	ddr->cs3_config = CFG_DDR2_CS3_CONFIG;
+	ddr->ext_refrec = CFG_DDR2_EXT_REFRESH;
+	ddr->timing_cfg_0 = CFG_DDR2_TIMING_0;
+	ddr->timing_cfg_1 = CFG_DDR2_TIMING_1;
+	ddr->timing_cfg_2 = CFG_DDR2_TIMING_2;
+	ddr->sdram_cfg_1 = CFG_DDR2_CFG_1A;
+	ddr->sdram_cfg_2 = CFG_DDR2_CFG_2;
+	ddr->sdram_mode_1 = CFG_DDR2_MODE_1;
+	ddr->sdram_mode_2 = CFG_DDR2_MODE_2;
+	ddr->sdram_mode_cntl = CFG_DDR2_MODE_CTL;
+	ddr->sdram_interval = CFG_DDR2_INTERVAL;
+	ddr->sdram_data_init = CFG_DDR2_DATA_INIT;
+	ddr->sdram_clk_cntl = CFG_DDR2_CLK_CTRL;
+
+	asm ("sync;isync");
+
+	udelay (500);
+
+	ddr->sdram_cfg_1 = CFG_DDR2_CFG_1B;
+	asm ("sync; isync");
+
+	udelay (500);
+#endif
+	return CFG_SDRAM_SIZE * 1024 * 1024;
+}
+#endif				/* !defined(CONFIG_SPD_EEPROM) */
+
+#if defined(CONFIG_PCI)
+/*
+ * Initialize PCI Devices, report devices found.
+ */
+
+#ifndef CONFIG_PCI_PNP
+static struct pci_config_table pci_fsl86xxads_config_table[] = {
+	{PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
+	 PCI_IDSEL_NUMBER, PCI_ANY_ID,
+	 pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
+				     PCI_ENET0_MEMADDR,
+				     PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}},
+	{}
+};
+#endif
+
+static struct pci_controller hose = {
+#ifndef CONFIG_PCI_PNP
+      config_table:pci_mpc86xxcts_config_table,
+#endif
+};
+
+#endif				/* CONFIG_PCI */
+
+void pci_init_board (void)
+{
+#ifdef CONFIG_PCI
+	extern void pci_mpc86xx_init (struct pci_controller *hose);
+
+	pci_mpc86xx_init (&hose);
+#endif				/* CONFIG_PCI */
+}
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup (void *blob, bd_t * bd)
+{
+	u32 *p;
+	int len;
+
+	ft_cpu_setup (blob, bd);
+
+	p = ft_get_prop (blob, "/memory/reg", &len);
+	if (p != NULL) {
+		*p++ = cpu_to_be32 (bd->bi_memstart);
+		*p = cpu_to_be32 (bd->bi_memsize);
+	}
+}
+#endif
+
+void sbc8641d_reset_board (void)
+{
+	puts ("Resetting board....\n");
+}
+
+/*
+ * get_board_sys_clk
+ *      Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ
+ */
+
+unsigned long get_board_sys_clk (ulong dummy)
+{
+	int i;
+	ulong val = 0;
+
+	i = 5;
+	i &= 0x07;
+
+	switch (i) {
+	case 0:
+		val = 33000000;
+		break;
+	case 1:
+		val = 40000000;
+		break;
+	case 2:
+		val = 50000000;
+		break;
+	case 3:
+		val = 66000000;
+		break;
+	case 4:
+		val = 83000000;
+		break;
+	case 5:
+		val = 100000000;
+		break;
+	case 6:
+		val = 134000000;
+		break;
+	case 7:
+		val = 166000000;
+		break;
+	}
+
+	return val;
+}
diff --git a/board/sbc8641d/u-boot.lds b/board/sbc8641d/u-boot.lds
new file mode 100644
index 0000000..fd0f350
--- /dev/null
+++ b/board/sbc8641d/u-boot.lds
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2006, 2007 Freescale Semiconductor, Inc.
+ *
+ * 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_ARCH(powerpc)
+
+SECTIONS
+{
+
+  /* Read-only sections, merged into text segment: */
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    cpu/mpc86xx/start.o	(.text)
+    board/sbc8641d/init.o (.bootpg)
+    cpu/mpc86xx/traps.o (.text)
+    cpu/mpc86xx/interrupts.o (.text)
+    cpu/mpc86xx/cpu_init.o (.text)
+    cpu/mpc86xx/cpu.o (.text)
+    cpu/mpc86xx/speed.o (.text)
+    common/dlmalloc.o (.text)
+    lib_generic/crc32.o (.text)
+    lib_ppc/extable.o (.text)
+    lib_generic/zlib.o (.text)
+    *(.text)
+    *(.fixup)
+    *(.got1)
+   }
+    _etext = .;
+    PROVIDE (etext = .);
+    .rodata    :
+   {
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+    *(.eh_frame)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  . = .;
+  __u_boot_cmd_start = .;
+  .u_boot_cmd : { *(.u_boot_cmd) }
+  __u_boot_cmd_end = .;
+
+  . = .;
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}