mpc83xx: Add MPC8313ERDB support.

Signed-off-by: Scott Wood <scottwood@freescale.com>

5 files changed, 423 insertions, 0 deletions

diff --git a/board/mpc8313erdb/Makefile b/board/mpc8313erdb/Makefile
new file mode 100644
index 0000000..a987e510
--- /dev/null
+++ b/board/mpc8313erdb/Makefile
@@ -0,0 +1,50 @@
+#
+# (C) Copyright 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	:= $(BOARD).o sdram.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(AR) crv $@ $(OBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/mpc8313erdb/config.mk b/board/mpc8313erdb/config.mk
new file mode 100644
index 0000000..f768264
--- /dev/null
+++ b/board/mpc8313erdb/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0xFE000000
diff --git a/board/mpc8313erdb/mpc8313erdb.c b/board/mpc8313erdb/mpc8313erdb.c
new file mode 100644
index 0000000..999fe9e
--- /dev/null
+++ b/board/mpc8313erdb/mpc8313erdb.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
+ *
+ * Author: Scott Wood <scottwood@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 <common.h>
+#include <ft_build.h>
+#include <pci.h>
+#include <mpc83xx.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+#ifndef CFG_8313ERDB_BROKEN_PMC
+	volatile immap_t *im = (immap_t *)CFG_IMMR;
+
+	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
+		gd->flags |= GD_FLG_SILENT;
+#endif
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: Freescale MPC8313ERDB\n");
+	return 0;
+}
+
+static struct pci_region pci_regions[] = {
+	{
+		bus_start: CFG_PCI1_MEM_BASE,
+		phys_start: CFG_PCI1_MEM_PHYS,
+		size: CFG_PCI1_MEM_SIZE,
+		flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+	},
+	{
+		bus_start: CFG_PCI1_MMIO_BASE,
+		phys_start: CFG_PCI1_MMIO_PHYS,
+		size: CFG_PCI1_MMIO_SIZE,
+		flags: PCI_REGION_MEM
+	},
+	{
+		bus_start: CFG_PCI1_IO_BASE,
+		phys_start: CFG_PCI1_IO_PHYS,
+		size: CFG_PCI1_IO_SIZE,
+		flags: PCI_REGION_IO
+	}
+};
+
+void pci_init_board(void)
+{
+	volatile immap_t *immr = (volatile immap_t *)CFG_IMMR;
+	volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
+	volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+	struct pci_region *reg[] = { pci_regions };
+	int warmboot;
+
+	/* Enable all 3 PCI_CLK_OUTPUTs. */
+	clk->occr |= 0xe0000000;
+
+	/*
+	 * Configure PCI Local Access Windows
+	 */
+	pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR;
+	pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
+
+	pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR;
+	pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
+
+	warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
+#ifndef CFG_8313ERDB_BROKEN_PMC
+	warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF;
+#endif
+
+	mpc83xx_pci_init(1, reg, warmboot);
+}
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	u32 *p;
+	int len;
+
+#ifdef CONFIG_PCI
+	ft_pci_setup(blob, bd);
+#endif
+	ft_cpu_setup(blob, bd);
+
+	p = ft_get_prop(blob, "/memory/reg", &len);
+	if (p) {
+		*p++ = cpu_to_be32(bd->bi_memstart);
+		*p = cpu_to_be32(bd->bi_memsize);
+	}
+}
+#endif
diff --git a/board/mpc8313erdb/sdram.c b/board/mpc8313erdb/sdram.c
new file mode 100644
index 0000000..4b67788
--- /dev/null
+++ b/board/mpc8313erdb/sdram.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
+ *
+ * Authors: Nick.Spence@freescale.com
+ *          Wilson.Lo@freescale.com
+ *          scottwood@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 <common.h>
+#include <mpc83xx.h>
+#include <spd_sdram.h>
+
+#include <asm/bitops.h>
+#include <asm/io.h>
+
+#include <asm/processor.h>
+
+#ifndef CFG_8313ERDB_BROKEN_PMC
+static void resume_from_sleep(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	u32 magic = *(u32 *)0;
+
+	typedef void (*func_t)(void);
+	func_t resume = *(func_t *)4;
+
+	if (magic == 0xf5153ae5)
+		resume();
+
+	gd->flags &= ~GD_FLG_SILENT;
+	puts("\nResume from sleep failed: bad magic word\n");
+}
+#endif
+
+/* Fixed sdram init -- doesn't use serial presence detect.
+ *
+ * This is useful for faster booting in configs where the RAM is unlikely
+ * to be changed, or for things like NAND booting where space is tight.
+ */
+static long fixed_sdram(void)
+{
+	volatile immap_t *im = (volatile immap_t *)CFG_IMMR;
+	u32 msize = CFG_DDR_SIZE * 1024 * 1024;
+	u32 msize_log2 = __ilog2(msize);
+
+	im->sysconf.ddrlaw[0].bar = CFG_DDR_SDRAM_BASE >> 12;
+	im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1);
+	im->sysconf.ddrcdr = CFG_DDRCDR_VALUE;
+
+	/*
+	 * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg],
+	 * or the DDR2 controller may fail to initialize correctly.
+	 */
+	udelay(50000);
+
+	im->ddr.csbnds[0].csbnds = (msize - 1) >> 24;
+	im->ddr.cs_config[0] = CFG_DDR_CONFIG;
+
+	/* Currently we use only one CS, so disable the other bank. */
+	im->ddr.cs_config[1] = 0;
+
+	im->ddr.sdram_clk_cntl = CFG_DDR_CLK_CNTL;
+	im->ddr.timing_cfg_3 = CFG_DDR_TIMING_3;
+	im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
+	im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
+	im->ddr.timing_cfg_0 = CFG_DDR_TIMING_0;
+
+#ifndef CFG_8313ERDB_BROKEN_PMC
+	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
+		im->ddr.sdram_cfg = CFG_SDRAM_CFG | SDRAM_CFG_BI;
+	else
+#endif
+		im->ddr.sdram_cfg = CFG_SDRAM_CFG;
+
+	im->ddr.sdram_cfg2 = CFG_SDRAM_CFG2;
+	im->ddr.sdram_mode = CFG_DDR_MODE;
+	im->ddr.sdram_mode2 = CFG_DDR_MODE_2;
+
+	im->ddr.sdram_interval = CFG_DDR_INTERVAL;
+	sync();
+
+	/* enable DDR controller */
+	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+
+	return msize;
+}
+
+long int initdram(int board_type)
+{
+	volatile immap_t *im = (volatile immap_t *)CFG_IMMR;
+	volatile lbus83xx_t *lbc = &im->lbus;
+	u32 msize;
+
+	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
+		return -1;
+
+	puts("Initializing\n");
+
+	/* DDR SDRAM - Main SODIMM */
+	msize = fixed_sdram();
+
+	/* Local Bus setup lbcr and mrtpr */
+	lbc->lbcr = CFG_LBC_LBCR;
+	lbc->mrtpr = CFG_LBC_MRTPR;
+	sync();
+
+#ifndef CFG_8313ERDB_BROKEN_PMC
+	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
+		resume_from_sleep();
+#endif
+
+	puts("   DDR RAM: ");
+	/* return total bus SDRAM size(bytes)  -- DDR */
+	return msize;
+}
diff --git a/board/mpc8313erdb/u-boot.lds b/board/mpc8313erdb/u-boot.lds
new file mode 100644
index 0000000..937c87a
--- /dev/null
+++ b/board/mpc8313erdb/u-boot.lds
@@ -0,0 +1,123 @@
+/*
+ * (C) Copyright 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
+ */
+
+OUTPUT_ARCH(powerpc)
+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      :
+  {
+    cpu/mpc83xx/start.o	(.text)
+    *(.text)
+    *(.fixup)
+    *(.got1)
+    . = ALIGN(16);
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+    *(.eh_frame)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x0FFF) & 0xFFFFF000;
+  _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(4096);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(4096);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}
+ENTRY(_start)