ppc44x: Unification of virtex5 pp440 boards

This patch provides an unificated way of handling xilinx v5 ppc440 boards.

It unificates 3 different things:

1) Source code
A new board called ppc440-generic has been created. This board includes
a generic tlb initialization (Maps the whole memory into virtual) and
defines board_pre_init, checkboard, initdram and get_sys_info weakly,
so, they can be replaced by specific functions.

If a new board needs to redefine any of the previous functions
(specific initialization) it can create a new directory with the
specific initializations needed. (see the example ml507 board).

2) Configuration file
Common configurations are located under configs/xilinx-ppc440.h, this
header file interpretes the xparameters file generated by EDK and
configurates u-boot in correspondence. Example: if there is a Temac,
allows CMD_CONFIG_NET
Specific configuration are located under specific configuration file.
(see the example ml507 board)

3) Makefile
Some work has been done in order to not duplicate work in the Main
Makefile. Please see the attached code.

In order to support new boards they can be implemented in the next way:

a) Simple Generic Board  (90% of the time)
Using EDK generates a new xparameters.h file, replace
ppc440-generic/xparameters.h  and run make xilinx-ppc440-generic_config
&& make

b) Simple Boards with special u-boot parameters (9 % of the time)
Create a new file under configs for it (use ml507.h as example) and
change your paramaters. Create a new Makefile paragraph and compile

c) Complex boards (1% of the time)
Create a new folder for the board, like the ml507

Finally, it adds support for the Avnet FX30T Evaluation board, following
the new generic structure:

Cheap board by Avnet for evaluating the Virtex5 FX technology.

This patch adds support for:
 - UartLite
 - 16MB Flash
 - 64MB RAM

Prior using U-boot in this board, read carefully the ERRATA by Avnet
to solve some memory initialization issues.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@uam.es>
Signed-off-by: Stefan Roese <sr@denx.de>

7 files changed, 472 insertions, 0 deletions

diff --git a/board/xilinx/ppc440-generic/.gitignore b/board/xilinx/ppc440-generic/.gitignore
new file mode 100644
index 0000000..6896ef6
--- /dev/null
+++ b/board/xilinx/ppc440-generic/.gitignore
@@ -0,0 +1 @@
+/config.mk
diff --git a/board/xilinx/ppc440-generic/Makefile b/board/xilinx/ppc440-generic/Makefile
new file mode 100644
index 0000000..f7405a8
--- /dev/null
+++ b/board/xilinx/ppc440-generic/Makefile
@@ -0,0 +1,62 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2008
+# Ricardo Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es
+# Work supported by Qtechnology http://www.qtec.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 $(TOPDIR)/config.mk
+ifneq ($(OBJTREE),$(SRCTREE))
+endif
+
+INCS		:=
+CFLAGS		+= $(INCS)
+HOST_CFLAGS	+= $(INCS)
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS	+= $(SRCTREE)/board/xilinx/ppc440-generic/xilinx_ppc440_generic.o
+
+SOBJS	+= $(SRCTREE)/board/xilinx/ppc440-generic/init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $^
+
+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/xilinx/ppc440-generic/init.S b/board/xilinx/ppc440-generic/init.S
new file mode 100644
index 0000000..1409467
--- /dev/null
+++ b/board/xilinx/ppc440-generic/init.S
@@ -0,0 +1,45 @@
+/*
+ *  (C) Copyright 2008
+ *  Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es
+ *  This work has been supported by: QTechnology  http://qtec.com/
+ *
+ *  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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <ppc_asm.tmpl>
+#include <config.h>
+#include <asm-ppc/mmu.h>
+
+.section .bootpg,"ax"
+.globl tlbtab
+
+tlbtab:
+tlbtab_start
+tlbentry(0x00000000, SZ_256M, 0x00000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x10000000, SZ_256M, 0x10000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x20000000, SZ_256M, 0x20000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x30000000, SZ_256M, 0x30000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x40000000, SZ_256M, 0x40000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x50000000, SZ_256M, 0x50000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x60000000, SZ_256M, 0x60000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x70000000, SZ_256M, 0x70000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x80000000, SZ_256M, 0x80000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0x90000000, SZ_256M, 0x90000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0xa0000000, SZ_256M, 0xa0000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0xb0000000, SZ_256M, 0xb0000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0xc0000000, SZ_256M, 0xc0000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0xd0000000, SZ_256M, 0xd0000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0xe0000000, SZ_256M, 0xe0000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbentry(0xf0000000, SZ_256M, 0xf0000000, 0, AC_R | AC_W | AC_X | SA_G | SA_I)
+tlbtab_end
diff --git a/board/xilinx/ppc440-generic/u-boot-ram.lds b/board/xilinx/ppc440-generic/u-boot-ram.lds
new file mode 100644
index 0000000..2c98d27
--- /dev/null
+++ b/board/xilinx/ppc440-generic/u-boot-ram.lds
@@ -0,0 +1,134 @@
+/*
+ * (C) Copyright 2000-2004
+ * 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)
+ENTRY(_start_440)
+
+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      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+
+    *(.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 (NOLOAD)       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+
+  ppcenv_assert = ASSERT(. < 0xFFFFB000, ".bss section too big, overlaps .ppcenv section. Please update your confguration: CFG_MONITOR_BASE, CFG_MONITOR_LEN and TEXT_BASE may need to be modified.");
+
+  _end = . ;
+  PROVIDE (end = .);
+}
diff --git a/board/xilinx/ppc440-generic/u-boot-rom.lds b/board/xilinx/ppc440-generic/u-boot-rom.lds
new file mode 100644
index 0000000..d5da018
--- /dev/null
+++ b/board/xilinx/ppc440-generic/u-boot-rom.lds
@@ -0,0 +1,144 @@
+/*
+ * (C) Copyright 2000-2004
+ * 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)
+ENTRY(_start_440)
+
+SECTIONS
+{
+  .resetvec 0xFFFFFFFC :
+  {
+    *(.resetvec)
+  } = 0xffff
+
+  .bootpg 0xFFFFF000 :
+  {
+    cpu/ppc4xx/start.o	(.bootpg)
+  } = 0xffff
+
+  /* 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      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+
+    *(.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 (NOLOAD)       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+
+  ppcenv_assert = ASSERT(. < 0xFFFFB000, ".bss section too big, overlaps .ppcenv section. Please update your confguration: CFG_MONITOR_BASE, CFG_MONITOR_LEN and TEXT_BASE may need to be modified.");
+
+  _end = . ;
+  PROVIDE (end = .);
+}
diff --git a/board/xilinx/ppc440-generic/xilinx_ppc440_generic.c b/board/xilinx/ppc440-generic/xilinx_ppc440_generic.c
new file mode 100644
index 0000000..0867226
--- /dev/null
+++ b/board/xilinx/ppc440-generic/xilinx_ppc440_generic.c
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2008
+ * Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es
+ * This work has been supported by: QTechnology  http://qtec.com/
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+#include <common.h>
+#include <asm/processor.h>
+
+int __board_pre_init(void)
+{
+	return 0;
+}
+int board_pre_init(void) __attribute__((weak, alias("__board_pre_init")));
+
+int __checkboard(void)
+{
+	puts("Xilinx PPC440 Generic Board\n");
+	return 0;
+}
+int checkboard(void) __attribute__((weak, alias("__checkboard")));
+
+phys_size_t __initdram(int board_type)
+{
+	return get_ram_size(XPAR_DDR2_SDRAM_MEM_BASEADDR,
+			    CFG_SDRAM_SIZE_MB * 1024 * 1024);
+}
+phys_size_t initdram(int) __attribute__((weak, alias("__initdram")));
+
+void __get_sys_info(sys_info_t *sysInfo)
+{
+	sysInfo->freqProcessor = XPAR_CORE_CLOCK_FREQ_HZ;
+	sysInfo->freqPLB = XPAR_PLB_CLOCK_FREQ_HZ;
+	sysInfo->freqPCI = 0;
+
+	return;
+}
+void get_sys_info(sys_info_t *) __attribute__((weak, alias("__get_sys_info")));
diff --git a/board/xilinx/ppc440-generic/xparameters.h b/board/xilinx/ppc440-generic/xparameters.h
new file mode 100644
index 0000000..1992fff
--- /dev/null
+++ b/board/xilinx/ppc440-generic/xparameters.h
@@ -0,0 +1,34 @@
+/*
+ * (C) Copyright 2008
+ * Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es
+ * This work has been supported by: QTechnology  http://qtec.com/
+ * based on xparameters-ml507.h by Xilinx
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef XPARAMETER_H
+#define XPARAMETER_H
+
+#define XPAR_DDR2_SDRAM_MEM_BASEADDR	0x00000000
+#define XPAR_IIC_EEPROM_BASEADDR	0x81600000
+#define XPAR_INTC_0_BASEADDR		0x81800000
+#define XPAR_UARTLITE_0_BASEADDR	0x84000000
+#define XPAR_FLASH_MEM0_BASEADDR	0xFE000000
+#define XPAR_PLB_CLOCK_FREQ_HZ		100000000
+#define XPAR_CORE_CLOCK_FREQ_HZ		400000000
+#define XPAR_INTC_MAX_NUM_INTR_INPUTS	13
+#define XPAR_UARTLITE_0_BAUDRATE	9600
+
+#endif