mpc85xx: Add support for the MPC8536DS reference board

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
Signed-off-by: Dejan Minic <minic@freescale.com>
Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

7 files changed, 1077 insertions, 0 deletions

diff --git a/board/freescale/mpc8536ds/Makefile b/board/freescale/mpc8536ds/Makefile
new file mode 100644
index 0000000..7fcbdaa
--- /dev/null
+++ b/board/freescale/mpc8536ds/Makefile
@@ -0,0 +1,54 @@
+#
+# Copyright 2008 Freescale Semiconductor.
+# (C) Copyright 2001-2006
+# 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-y	+= $(BOARD).o
+COBJS-y	+= ddr.o
+COBJS-y	+= law.o
+COBJS-y	+= tlb.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+	rm -f $(OBJS) $(SOBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/mpc8536ds/config.mk b/board/freescale/mpc8536ds/config.mk
new file mode 100644
index 0000000..9775ff4
--- /dev/null
+++ b/board/freescale/mpc8536ds/config.mk
@@ -0,0 +1,32 @@
+#
+# Copyright 2008 Freescale Semiconductor.
+#
+# 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
+#
+
+#
+# mpc8536ds board
+#
+ifndef TEXT_BASE
+TEXT_BASE = 0xeff80000
+endif
+
+PLATFORM_CPPFLAGS += -DCONFIG_E500=1
+PLATFORM_CPPFLAGS += -DCONFIG_MPC85xx=1
+PLATFORM_CPPFLAGS += -DCONFIG_MPC8536=1
diff --git a/board/freescale/mpc8536ds/ddr.c b/board/freescale/mpc8536ds/ddr.c
new file mode 100644
index 0000000..2e88c79
--- /dev/null
+++ b/board/freescale/mpc8536ds/ddr.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <i2c.h>
+
+#include <asm/fsl_ddr_sdram.h>
+
+static void get_spd(ddr2_spd_eeprom_t *spd, unsigned char i2c_address)
+{
+	i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr2_spd_eeprom_t));
+}
+
+unsigned int fsl_ddr_get_mem_data_rate(void)
+{
+	return get_ddr_freq(0);
+}
+
+void fsl_ddr_get_spd(ddr2_spd_eeprom_t *ctrl_dimms_spd,
+		      unsigned int ctrl_num)
+{
+	unsigned int i;
+
+	if (ctrl_num) {
+		printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num);
+		return;
+	}
+
+	for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
+		get_spd(&(ctrl_dimms_spd[i]), SPD_EEPROM_ADDRESS);
+	}
+}
+
+void fsl_ddr_board_options(memctl_options_t *popts, unsigned int ctrl_num)
+{
+	/*
+	 * Factors to consider for clock adjust:
+	 *	- number of chips on bus
+	 *	- position of slot
+	 *	- DDR1 vs. DDR2?
+	 *	- ???
+	 *
+	 * This needs to be determined on a board-by-board basis.
+	 *	0110	3/4 cycle late
+	 *	0111	7/8 cycle late
+	 */
+	popts->clk_adjust = 7;
+
+	/*
+	 * Factors to consider for CPO:
+	 *	- frequency
+	 *	- ddr1 vs. ddr2
+	 */
+	popts->cpo_override = 10;
+
+	/*
+	 * Factors to consider for write data delay:
+	 *	- number of DIMMs
+	 *
+	 * 1 = 1/4 clock delay
+	 * 2 = 1/2 clock delay
+	 * 3 = 3/4 clock delay
+	 * 4 = 1   clock delay
+	 * 5 = 5/4 clock delay
+	 * 6 = 3/2 clock delay
+	 */
+	popts->write_data_delay = 3;
+
+	/*
+	 * Factors to consider for half-strength driver enable:
+	 *	- number of DIMMs installed
+	 */
+	popts->half_strength_driver_enable = 0;
+}
diff --git a/board/freescale/mpc8536ds/law.c b/board/freescale/mpc8536ds/law.c
new file mode 100644
index 0000000..cdf5215
--- /dev/null
+++ b/board/freescale/mpc8536ds/law.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * 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 <common.h>
+#include <asm/fsl_law.h>
+#include <asm/mmu.h>
+
+struct law_entry law_table[] = {
+	SET_LAW(CFG_PCI1_MEM_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_PCI),
+	SET_LAW(CFG_PCI1_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCI),
+	SET_LAW(CFG_FLASH_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
+	SET_LAW(CFG_PCIE1_MEM_PHYS, LAWAR_SIZE_128M, LAW_TRGT_IF_PCIE_1),
+	SET_LAW(CFG_PCIE1_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_1),
+	SET_LAW(CFG_PCIE2_MEM_PHYS, LAWAR_SIZE_128M, LAW_TRGT_IF_PCIE_2),
+	SET_LAW(CFG_PCIE2_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_2),
+	SET_LAW(CFG_PCIE3_MEM_PHYS, LAWAR_SIZE_512M, LAW_TRGT_IF_PCIE_3),
+	SET_LAW(CFG_PCIE3_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_3),
+	SET_LAW(PIXIS_BASE, LAW_SIZE_4K, LAW_TRGT_IF_LBC),
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/freescale/mpc8536ds/mpc8536ds.c b/board/freescale/mpc8536ds/mpc8536ds.c
new file mode 100644
index 0000000..8216c70
--- /dev/null
+++ b/board/freescale/mpc8536ds/mpc8536ds.c
@@ -0,0 +1,653 @@
+/*
+ * Copyright 2008 Freescale Semiconductor.
+ *
+ * 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/mmu.h>
+#include <asm/immap_85xx.h>
+#include <asm/immap_fsl_pci.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/io.h>
+#include <spd.h>
+#include <miiphy.h>
+#include <libfdt.h>
+#include <spd_sdram.h>
+#include <fdt_support.h>
+
+#include "../common/pixis.h"
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+extern void ddr_enable_ecc(unsigned int dram_size);
+#endif
+
+phys_size_t fixed_sdram(void);
+
+int checkboard (void)
+{
+	printf ("Board: MPC8536DS, System ID: 0x%02x, "
+		"System Version: 0x%02x, FPGA Version: 0x%02x\n",
+		in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER),
+		in8(PIXIS_BASE + PIXIS_PVER));
+	return 0;
+}
+
+phys_size_t
+initdram(int board_type)
+{
+	phys_size_t dram_size = 0;
+
+	puts("Initializing....");
+
+#ifdef CONFIG_SPD_EEPROM
+	dram_size = fsl_ddr_sdram();
+
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+
+	dram_size *= 0x100000;
+#else
+	dram_size = fixed_sdram();
+#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(CONFIG_SPD_EEPROM)
+/*
+ * Fixed sdram init -- doesn't use serial presence detect.
+ */
+
+phys_size_t fixed_sdram (void)
+{
+	volatile immap_t *immap = (immap_t *)CFG_IMMR;
+	volatile ccsr_ddr_t *ddr= &immap->im_ddr;
+	uint d_init;
+
+	ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
+	ddr->cs0_config = CFG_DDR_CS0_CONFIG;
+
+	ddr->timing_cfg_3 = CFG_DDR_TIMING_3;
+	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_mode = CFG_DDR_MODE_1;
+	ddr->sdram_mode_2 = CFG_DDR_MODE_2;
+	ddr->sdram_interval = CFG_DDR_INTERVAL;
+	ddr->sdram_data_init = CFG_DDR_DATA_INIT;
+	ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL;
+	ddr->sdram_cfg_2 = CFG_DDR_CONTROL2;
+
+#if defined (CONFIG_DDR_ECC)
+	ddr->err_int_en = CFG_DDR_ERR_INT_EN;
+	ddr->err_disable = CFG_DDR_ERR_DIS;
+	ddr->err_sbe = CFG_DDR_SBE;
+#endif
+	asm("sync;isync");
+
+	udelay(500);
+
+	ddr->sdram_cfg = CFG_DDR_CONTROL;
+
+#if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+	d_init = 1;
+	debug("DDR - 1st controller: memory initializing\n");
+	/*
+	 * Poll until memory is initialized.
+	 * 512 Meg at 400 might hit this 200 times or so.
+	 */
+	while ((ddr->sdram_cfg_2 & (d_init << 4)) != 0) {
+		udelay(1000);
+	}
+	debug("DDR: memory initialized\n\n");
+	asm("sync; isync");
+	udelay(500);
+#endif
+
+	return 512 * 1024 * 1024;
+}
+
+#endif
+
+#ifdef CONFIG_PCI1
+static struct pci_controller pci1_hose;
+#endif
+
+#ifdef CONFIG_PCIE1
+static struct pci_controller pcie1_hose;
+#endif
+
+#ifdef CONFIG_PCIE2
+static struct pci_controller pcie2_hose;
+#endif
+
+#ifdef CONFIG_PCIE3
+static struct pci_controller pcie3_hose;
+#endif
+
+int first_free_busno=0;
+
+void
+pci_init_board(void)
+{
+	volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
+	uint devdisr = gur->devdisr;
+	uint sdrs2_io_sel =
+		(gur->pordevsr & MPC85xx_PORDEVSR_SRDS2_IO_SEL) >> 27;
+	uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
+	uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
+
+	debug("   pci_init_board: devdisr=%x, sdrs2_io_sel=%x, io_sel=%x,\
+		host_agent=%x\n", devdisr, sdrs2_io_sel, io_sel, host_agent);
+
+	if (sdrs2_io_sel == 7)
+		printf("    Serdes2 disalbed\n");
+	else if (sdrs2_io_sel == 4) {
+		printf("    eTSEC1 is in sgmii mode.\n");
+		printf("    eTSEC3 is in sgmii mode.\n");
+	} else if (sdrs2_io_sel == 6)
+		printf("    eTSEC1 is in sgmii mode.\n");
+
+#ifdef CONFIG_PCIE3
+{
+	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE3_ADDR;
+	extern void fsl_pci_init(struct pci_controller *hose);
+	struct pci_controller *hose = &pcie3_hose;
+	int pcie_ep = (host_agent == 1);
+	int pcie_configured  = (io_sel == 7);
+
+	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
+		printf ("\n    PCIE3 connected to Slot3 as %s (base address %x)",
+			pcie_ep ? "End Point" : "Root Complex",
+			(uint)pci);
+		if (pci->pme_msg_det) {
+			pci->pme_msg_det = 0xffffffff;
+			debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
+		}
+		printf ("\n");
+
+		/* inbound */
+		pci_set_region(hose->regions + 0,
+			       CFG_PCI_MEMORY_BUS,
+			       CFG_PCI_MEMORY_PHYS,
+			       CFG_PCI_MEMORY_SIZE,
+			       PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+		/* outbound memory */
+		pci_set_region(hose->regions + 1,
+			       CFG_PCIE3_MEM_BASE,
+			       CFG_PCIE3_MEM_PHYS,
+			       CFG_PCIE3_MEM_SIZE,
+			       PCI_REGION_MEM);
+
+		/* outbound io */
+		pci_set_region(hose->regions + 2,
+			       CFG_PCIE3_IO_BASE,
+			       CFG_PCIE3_IO_PHYS,
+			       CFG_PCIE3_IO_SIZE,
+			       PCI_REGION_IO);
+
+		hose->region_count = 3;
+
+		hose->first_busno=first_free_busno;
+		pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+		fsl_pci_init(hose);
+
+		first_free_busno=hose->last_busno+1;
+		printf ("    PCIE3 on bus %02x - %02x\n",
+			hose->first_busno,hose->last_busno);
+	} else {
+		printf ("    PCIE3: disabled\n");
+	}
+
+ }
+#else
+	gur->devdisr |= MPC85xx_DEVDISR_PCIE3; /* disable */
+#endif
+
+#ifdef CONFIG_PCIE1
+ {
+	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR;
+	extern void fsl_pci_init(struct pci_controller *hose);
+	struct pci_controller *hose = &pcie1_hose;
+	int pcie_ep = (host_agent == 5);
+	int pcie_configured  = (io_sel == 2 || io_sel == 3
+				|| io_sel == 5 || io_sel == 7);
+
+	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
+		printf ("\n    PCIE1 connected to Slot1 as %s (base address %x)",
+			pcie_ep ? "End Point" : "Root Complex",
+			(uint)pci);
+		if (pci->pme_msg_det) {
+			pci->pme_msg_det = 0xffffffff;
+			debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
+		}
+		printf ("\n");
+
+		/* inbound */
+		pci_set_region(hose->regions + 0,
+			       CFG_PCI_MEMORY_BUS,
+			       CFG_PCI_MEMORY_PHYS,
+			       CFG_PCI_MEMORY_SIZE,
+			       PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+		/* outbound memory */
+		pci_set_region(hose->regions + 1,
+			       CFG_PCIE1_MEM_BASE,
+			       CFG_PCIE1_MEM_PHYS,
+			       CFG_PCIE1_MEM_SIZE,
+			       PCI_REGION_MEM);
+
+		/* outbound io */
+		pci_set_region(hose->regions + 2,
+			       CFG_PCIE1_IO_BASE,
+			       CFG_PCIE1_IO_PHYS,
+			       CFG_PCIE1_IO_SIZE,
+			       PCI_REGION_IO);
+
+		hose->region_count = 3;
+#ifdef CFG_PCIE1_MEM_BASE2
+		/* outbound memory */
+		pci_set_region(hose->regions + 3,
+			       CFG_PCIE1_MEM_BASE2,
+			       CFG_PCIE1_MEM_PHYS2,
+			       CFG_PCIE1_MEM_SIZE2,
+			       PCI_REGION_MEM);
+		hose->region_count++;
+#endif
+		hose->first_busno=first_free_busno;
+
+		pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+		fsl_pci_init(hose);
+
+		first_free_busno=hose->last_busno+1;
+		printf("    PCIE1 on bus %02x - %02x\n",
+		       hose->first_busno,hose->last_busno);
+
+	} else {
+		printf ("    PCIE1: disabled\n");
+	}
+
+ }
+#else
+	gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
+#endif
+
+#ifdef CONFIG_PCIE2
+ {
+	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE2_ADDR;
+	extern void fsl_pci_init(struct pci_controller *hose);
+	struct pci_controller *hose = &pcie2_hose;
+	int pcie_ep = (host_agent == 3);
+	int pcie_configured  = (io_sel == 5 || io_sel == 7);
+
+	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
+		printf ("\n    PCIE2 connected to Slot 2 as %s (base address %x)",
+			pcie_ep ? "End Point" : "Root Complex",
+			(uint)pci);
+		if (pci->pme_msg_det) {
+			pci->pme_msg_det = 0xffffffff;
+			debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
+		}
+		printf ("\n");
+
+		/* inbound */
+		pci_set_region(hose->regions + 0,
+			       CFG_PCI_MEMORY_BUS,
+			       CFG_PCI_MEMORY_PHYS,
+			       CFG_PCI_MEMORY_SIZE,
+			       PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+		/* outbound memory */
+		pci_set_region(hose->regions + 1,
+			       CFG_PCIE2_MEM_BASE,
+			       CFG_PCIE2_MEM_PHYS,
+			       CFG_PCIE2_MEM_SIZE,
+			       PCI_REGION_MEM);
+
+		/* outbound io */
+		pci_set_region(hose->regions + 2,
+			       CFG_PCIE2_IO_BASE,
+			       CFG_PCIE2_IO_PHYS,
+			       CFG_PCIE2_IO_SIZE,
+			       PCI_REGION_IO);
+
+		hose->region_count = 3;
+#ifdef CFG_PCIE2_MEM_BASE2
+		/* outbound memory */
+		pci_set_region(hose->regions + 3,
+			       CFG_PCIE2_MEM_BASE2,
+			       CFG_PCIE2_MEM_PHYS2,
+			       CFG_PCIE2_MEM_SIZE2,
+			       PCI_REGION_MEM);
+		hose->region_count++;
+#endif
+		hose->first_busno=first_free_busno;
+		pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+		fsl_pci_init(hose);
+		first_free_busno=hose->last_busno+1;
+		printf ("    PCIE2 on bus %02x - %02x\n",
+			hose->first_busno,hose->last_busno);
+
+	} else {
+		printf ("    PCIE2: disabled\n");
+	}
+
+ }
+#else
+	gur->devdisr |= MPC85xx_DEVDISR_PCIE2; /* disable */
+#endif
+
+
+#ifdef CONFIG_PCI1
+{
+	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
+	extern void fsl_pci_init(struct pci_controller *hose);
+	struct pci_controller *hose = &pci1_hose;
+
+	uint pci_agent = (host_agent == 6);
+	uint pci_speed = 66666000; /*get_clock_freq (); PCI PSPEED in [4:5] */
+	uint pci_32 = 1;
+	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;	/* PORDEVSR[14] */
+	uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;	/* PORPLLSR[16] */
+
+
+	if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
+		printf ("\n    PCI: %d bit, %s MHz, %s, %s, %s (base address %x)\n",
+			(pci_32) ? 32 : 64,
+			(pci_speed == 33333000) ? "33" :
+			(pci_speed == 66666000) ? "66" : "unknown",
+			pci_clk_sel ? "sync" : "async",
+			pci_agent ? "agent" : "host",
+			pci_arb ? "arbiter" : "external-arbiter",
+			(uint)pci
+			);
+
+		/* inbound */
+		pci_set_region(hose->regions + 0,
+			       CFG_PCI_MEMORY_BUS,
+			       CFG_PCI_MEMORY_PHYS,
+			       CFG_PCI_MEMORY_SIZE,
+			       PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+		/* outbound memory */
+		pci_set_region(hose->regions + 1,
+			       CFG_PCI1_MEM_BASE,
+			       CFG_PCI1_MEM_PHYS,
+			       CFG_PCI1_MEM_SIZE,
+			       PCI_REGION_MEM);
+
+		/* outbound io */
+		pci_set_region(hose->regions + 2,
+			       CFG_PCI1_IO_BASE,
+			       CFG_PCI1_IO_PHYS,
+			       CFG_PCI1_IO_SIZE,
+			       PCI_REGION_IO);
+		hose->region_count = 3;
+#ifdef CFG_PCI1_MEM_BASE2
+		/* outbound memory */
+		pci_set_region(hose->regions + 3,
+			       CFG_PCI1_MEM_BASE2,
+			       CFG_PCI1_MEM_PHYS2,
+			       CFG_PCI1_MEM_SIZE2,
+			       PCI_REGION_MEM);
+		hose->region_count++;
+#endif
+		hose->first_busno=first_free_busno;
+		pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+		fsl_pci_init(hose);
+		first_free_busno=hose->last_busno+1;
+		printf ("PCI on bus %02x - %02x\n",
+			hose->first_busno,hose->last_busno);
+	} else {
+		printf ("    PCI: disabled\n");
+	}
+}
+#else
+	gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
+#endif
+}
+
+
+int board_early_init_r(void)
+{
+	unsigned int i;
+	const unsigned int flashbase = CFG_FLASH_BASE;
+	const u8 flash_esel = 1;
+
+	/*
+	 * Remap Boot flash + PROMJET region to caching-inhibited
+	 * so that flash can be erased properly.
+	 */
+
+	/* Invalidate any remaining lines of the flash from caches. */
+	for (i = 0; i < 256*1024*1024; i+=32) {
+		asm volatile ("dcbi %0,%1": : "b" (flashbase), "r" (i));
+		asm volatile ("icbi %0,%1": : "b" (flashbase), "r" (i));
+	}
+
+	/* invalidate existing TLB entry for flash + promjet */
+	disable_tlb(flash_esel);
+
+	set_tlb(1, flashbase, flashbase,		/* tlb, epn, rpn */
+		MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,	/* perms, wimge */
+		0, flash_esel, BOOKE_PAGESZ_256M, 1);	/* ts, esel, tsize, iprot */
+
+	return 0;
+}
+
+#ifdef CONFIG_GET_CLK_FROM_ICS307
+/* decode S[0-2] to Output Divider (OD) */
+static unsigned char
+ics307_S_to_OD[] = {
+	10, 2, 8, 4, 5, 7, 3, 6
+};
+
+/* Calculate frequency being generated by ICS307-02 clock chip based upon
+ * the control bytes being programmed into it. */
+/* XXX: This function should probably go into a common library */
+static unsigned long
+ics307_clk_freq (unsigned char cw0, unsigned char cw1, unsigned char cw2)
+{
+	const unsigned long long InputFrequency = CONFIG_ICS307_REFCLK_HZ;
+	unsigned long VDW = ((cw1 << 1) & 0x1FE) + ((cw2 >> 7) & 1);
+	unsigned long RDW = cw2 & 0x7F;
+	unsigned long OD = ics307_S_to_OD[cw0 & 0x7];
+	unsigned long freq;
+
+	/* CLK1Frequency = InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD) */
+
+	/* cw0:  C1 C0 TTL F1 F0 S2 S1 S0
+	 * cw1:  V8 V7 V6 V5 V4 V3 V2 V1
+	 * cw2:  V0 R6 R5 R4 R3 R2 R1 R0
+	 *
+	 * R6:R0 = Reference Divider Word (RDW)
+	 * V8:V0 = VCO Divider Word (VDW)
+	 * S2:S0 = Output Divider Select (OD)
+	 * F1:F0 = Function of CLK2 Output
+	 * TTL = duty cycle
+	 * C1:C0 = internal load capacitance for cyrstal
+	 */
+
+	/* Adding 1 to get a "nicely" rounded number, but this needs
+	 * more tweaking to get a "properly" rounded number. */
+
+	freq = 1 + (InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD));
+
+	debug("ICS307: CW[0-2]: %02X %02X %02X => %u Hz\n", cw0, cw1, cw2,
+		freq);
+	return freq;
+}
+
+unsigned long
+get_board_sys_clk(ulong dummy)
+{
+	return ics307_clk_freq (
+	    in8(PIXIS_BASE + PIXIS_VSYSCLK0),
+	    in8(PIXIS_BASE + PIXIS_VSYSCLK1),
+	    in8(PIXIS_BASE + PIXIS_VSYSCLK2)
+	);
+}
+
+unsigned long
+get_board_ddr_clk(ulong dummy)
+{
+	return ics307_clk_freq (
+	    in8(PIXIS_BASE + PIXIS_VDDRCLK0),
+	    in8(PIXIS_BASE + PIXIS_VDDRCLK1),
+	    in8(PIXIS_BASE + PIXIS_VDDRCLK2)
+	);
+}
+#else
+unsigned long
+get_board_sys_clk(ulong dummy)
+{
+	u8 i;
+	ulong val = 0;
+
+	i = in8(PIXIS_BASE + PIXIS_SPD);
+	i &= 0x07;
+
+	switch (i) {
+	case 0:
+		val = 33333333;
+		break;
+	case 1:
+		val = 40000000;
+		break;
+	case 2:
+		val = 50000000;
+		break;
+	case 3:
+		val = 66666666;
+		break;
+	case 4:
+		val = 83333333;
+		break;
+	case 5:
+		val = 100000000;
+		break;
+	case 6:
+		val = 133333333;
+		break;
+	case 7:
+		val = 166666666;
+		break;
+	}
+
+	return val;
+}
+
+unsigned long
+get_board_ddr_clk(ulong dummy)
+{
+	u8 i;
+	ulong val = 0;
+
+	i = in8(PIXIS_BASE + PIXIS_SPD);
+	i &= 0x38;
+	i >>= 3;
+
+	switch (i) {
+	case 0:
+		val = 33333333;
+		break;
+	case 1:
+		val = 40000000;
+		break;
+	case 2:
+		val = 50000000;
+		break;
+	case 3:
+		val = 66666666;
+		break;
+	case 4:
+		val = 83333333;
+		break;
+	case 5:
+		val = 100000000;
+		break;
+	case 6:
+		val = 133333333;
+		break;
+	case 7:
+		val = 166666666;
+		break;
+	}
+	return val;
+}
+#endif
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+	int node, tmp[2];
+	const char *path;
+
+	ft_cpu_setup(blob, bd);
+
+	node = fdt_path_offset(blob, "/aliases");
+	tmp[0] = 0;
+	if (node >= 0) {
+#ifdef CONFIG_PCI1
+		path = fdt_getprop(blob, node, "pci0", NULL);
+		if (path) {
+			tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
+			do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
+		}
+#endif
+#ifdef CONFIG_PCIE2
+		path = fdt_getprop(blob, node, "pci1", NULL);
+		if (path) {
+			tmp[1] = pcie2_hose.last_busno - pcie2_hose.first_busno;
+			do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
+		}
+#endif
+#ifdef CONFIG_PCIE1
+		path = fdt_getprop(blob, node, "pci2", NULL);
+		if (path) {
+			tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
+			do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
+		}
+#endif
+#ifdef CONFIG_PCIE3
+		path = fdt_getprop(blob, node, "pci3", NULL);
+		if (path) {
+			tmp[1] = pcie3_hose.last_busno - pcie3_hose.first_busno;
+			do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
+		}
+#endif
+	}
+}
+#endif
diff --git a/board/freescale/mpc8536ds/tlb.c b/board/freescale/mpc8536ds/tlb.c
new file mode 100644
index 0000000..28a9fa8
--- /dev/null
+++ b/board/freescale/mpc8536ds/tlb.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * 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 <common.h>
+#include <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+	/* TLB 0 - for temp stack in cache */
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR, CFG_INIT_RAM_ADDR,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 4 * 1024 , CFG_INIT_RAM_ADDR + 4 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 8 * 1024 , CFG_INIT_RAM_ADDR + 8 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 12 * 1024 , CFG_INIT_RAM_ADDR + 12 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	SET_TLB_ENTRY(0, PIXIS_BASE, PIXIS_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/* TLB 1 */
+	/* *I*G* - CCSRBAR */
+	SET_TLB_ENTRY(1, CFG_CCSRBAR, CFG_CCSRBAR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 0, BOOKE_PAGESZ_1M, 1),
+
+	/* W**G* - Flash/promjet, localbus */
+	/* This will be changed to *I*G* after relocation to RAM. */
+	SET_TLB_ENTRY(1, CFG_FLASH_BASE, CFG_FLASH_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_W|MAS2_G,
+		      0, 1, BOOKE_PAGESZ_256M, 1),
+
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CFG_PCI1_MEM_PHYS, CFG_PCI1_MEM_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 2, BOOKE_PAGESZ_1G, 1),
+
+	/* *I*G* - PCI I/O */
+	SET_TLB_ENTRY(1, CFG_PCI1_IO_PHYS, CFG_PCI1_IO_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 3, BOOKE_PAGESZ_256K, 1),
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);
diff --git a/board/freescale/mpc8536ds/u-boot.lds b/board/freescale/mpc8536ds/u-boot.lds
new file mode 100644
index 0000000..901f633
--- /dev/null
+++ b/board/freescale/mpc8536ds/u-boot.lds
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2008 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)
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+PHDRS
+{
+  text PT_LOAD;
+  bss PT_LOAD;
+}
+
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .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      :
+  {
+    *(.text)
+    *(.fixup)
+    *(.got1)
+   } :text
+    _etext = .;
+    PROVIDE (etext = .);
+    .rodata    :
+   {
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+    *(.eh_frame)
+  } :text
+  .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 = .;
+
+  .bootpg ADDR(.text) + 0x7f000 :
+  {
+    cpu/mpc85xx/start.o	(.bootpg)
+  } :text = 0xffff
+
+  .resetvec ADDR(.text) + 0x7fffc :
+  {
+    *(.resetvec)
+  } :text = 0xffff
+
+  . = ADDR(.text) + 0x80000;
+
+  __bss_start = .;
+  .bss (NOLOAD)       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  } :bss
+
+  . = ALIGN(4);
+  _end = . ;
+  PROVIDE (end = .);
+}