ppc4xx: ML507: U-Boot in flash and System ACE

This patch allows booting from FLASH the ML507 board by Xilinx.
Previously, U-Boot needed to be loaded from JTAG or a Sytem ACE CF

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

5 files changed, 167 insertions, 9 deletions

diff --git a/board/xilinx/ml507/config.mk b/board/xilinx/ml507/config.mk
index 35c52ad..e827e8a 100644
--- a/board/xilinx/ml507/config.mk
+++ b/board/xilinx/ml507/config.mk
@@ -20,5 +20,8 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 # MA 02111-1307 USA
 #
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
 
+ifndef TEXT_BASE
 TEXT_BASE = 0x04000000
+endif
diff --git a/board/xilinx/ml507/init.S b/board/xilinx/ml507/init.S
index f54d929..3228a65 100644
--- a/board/xilinx/ml507/init.S
+++ b/board/xilinx/ml507/init.S
@@ -35,13 +35,19 @@ tlbentry(XPAR_UARTLITE_0_BASEADDR, SZ_64K, XPAR_UARTLITE_0_BASEADDR, 0,
 	/* PIC */
 tlbentry(XPAR_INTC_0_BASEADDR, SZ_64K, XPAR_INTC_0_BASEADDR, 0,
 	 AC_R | AC_W | SA_G | SA_I)
+#ifdef XPAR_IIC_EEPROM_BASEADDR
 	/* I2C */
 tlbentry(XPAR_IIC_EEPROM_BASEADDR, SZ_64K, XPAR_IIC_EEPROM_BASEADDR, 0,
 	 AC_R | AC_W | SA_G | SA_I)
+#endif
+#ifdef XPAR_LLTEMAC_0_BASEADDR
 	/* Net */
 tlbentry(XPAR_LLTEMAC_0_BASEADDR, SZ_64K, XPAR_LLTEMAC_0_BASEADDR, 0,
 	 AC_R | AC_W | SA_G | SA_I)
+#endif
+#ifdef XPAR_FLASH_MEM0_BASEADDR
 	/*Flash*/
 tlbentry(XPAR_FLASH_MEM0_BASEADDR, SZ_256M, XPAR_FLASH_MEM0_BASEADDR, 0,
-	AC_R | AC_W | SA_G | SA_I)
+	 AC_R | AC_W | AC_X | SA_G | SA_I)
+#endif
 tlbtab_end
diff --git a/board/xilinx/ml507/u-boot.lds b/board/xilinx/ml507/u-boot-ram.lds
index ef2bdc3..2c98d27 100644
--- a/board/xilinx/ml507/u-boot.lds
+++ b/board/xilinx/ml507/u-boot-ram.lds
@@ -1,8 +1,6 @@
 /*
- * (C) Copyright 2000
+ * (C) Copyright 2000-2004
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- * 2008:
- * Modified by: Ricardo Ribalda Delgado ricardo.ribalda@uam.es
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -25,8 +23,7 @@
 
 OUTPUT_ARCH(powerpc)
 ENTRY(_start_440)
-/* Do we need any of these for elf?
-   __DYNAMIC = 0;    */
+
 SECTIONS
 {
   /* Read-only sections, merged into text segment: */
@@ -55,6 +52,10 @@ SECTIONS
   .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)
@@ -125,6 +126,9 @@ SECTIONS
    *(.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/ml507/u-boot-rom.lds b/board/xilinx/ml507/u-boot-rom.lds
new file mode 100644
index 0000000..d5da018
--- /dev/null
+++ b/board/xilinx/ml507/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/ml507/xparameters.h b/board/xilinx/ml507/xparameters.h
index 1542e84..6a8e183 100644
--- a/board/xilinx/ml507/xparameters.h
+++ b/board/xilinx/ml507/xparameters.h
@@ -22,13 +22,14 @@
 #define XPARAMETER_H
 
 #define XPAR_DDR2_SDRAM_MEM_BASEADDR 	0x00000000
-#define XPAR_INTC_0_BASEADDR 		0x81800000
-#define XPAR_UARTLITE_0_BASEADDR 	0x84000000
 #define XPAR_IIC_EEPROM_BASEADDR 	0x81600000
+#define XPAR_INTC_0_BASEADDR 		0x81800000
 #define XPAR_LLTEMAC_0_BASEADDR 	0x81c00000
-#define XPAR_FLASH_MEM0_BASEADDR 	0xFC000000
+#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