ppc4xx: Add 405GPr based MCU25 board specific files

Signed-off-by: Niklaus Giger <niklaus.giger@netstal.com>

5 files changed, 499 insertions, 0 deletions

diff --git a/board/netstal/mcu25/Makefile b/board/netstal/mcu25/Makefile
new file mode 100644
index 0000000..53df61e
--- /dev/null
+++ b/board/netstal/mcu25/Makefile
@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2007-2008 Netstal Maschinen AG
+# Niklaus Giger (ng@netstal.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, 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
+
+# NOBJS : Netstal common objects
+NOBJS	= fixed_sdram.o nm_bsp.o
+COBJS	= $(BOARD).o
+SOBJS	=
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c) $(addprefix ../common/,$(NOBJS:.o=.c))
+OBJS	:= $(addprefix $(obj),$(COBJS))
+NOBJS	:= $(addprefix $(obj)../common/,$(NOBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(OBJS) $(SOBJS) $(NOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) $(NOBJS)
+
+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/netstal/mcu25/README.txt b/board/netstal/mcu25/README.txt
new file mode 100644
index 0000000..0b10342
--- /dev/null
+++ b/board/netstal/mcu25/README.txt
@@ -0,0 +1,60 @@
+MCU25 Configuration Details
+
+Memory Bank 0 -- Flash chip
+---------------------------
+
+0xfff00000 - 0xffffffff
+
+The flash chip is really only 512Kbytes, but the high address bit of
+the 1Meg region is ignored, so the flash is replicated through the
+region. Thus, this is consistent with a flash base address 0xfff80000.
+
+The placement at the end is to be consistent with reset behavior,
+where the processor itself initially uses this bus to load the branch
+vector and start running.
+
+On-Chip Memory
+--------------
+
+0xf4000000 - 0xf4000fff
+
+The 405GPr includes a 4K on-chip memory that can be placed however
+software chooses. I choose to place the memory at this address, to
+keep it out of the cachable areas.
+
+
+Internal Peripherals
+--------------------
+
+0xef600300 - 0xef6008ff
+
+These are scattered various peripherals internal to the PPC405GPr
+chip.
+
+Chip-Select 2: Flash Memory
+---------------------------
+
+0x70000000
+
+Chip-Select 3: CAN Interface
+----------------------------
+0x7800000
+
+
+Chip-Select 4: IMC-bus standard
+-------------------------------
+
+Our IO-Bus (slow version)
+
+
+Chip-Select 5: IMC-bus fast (inactive)
+--------------------------------------
+
+Our IO-Bus (fast, but not yet use)
+
+
+Memory Bank 1 -- SDRAM
+-------------------------------------
+
+0x00000000 - 0x2ffffff   # Default 64 MB
+
diff --git a/board/netstal/mcu25/config.mk b/board/netstal/mcu25/config.mk
new file mode 100644
index 0000000..12f61e7
--- /dev/null
+++ b/board/netstal/mcu25/config.mk
@@ -0,0 +1,29 @@
+#
+# (C) Copyright 2005 Netstal Maschinen AG
+#     Niklaus Giger (ng@netstal.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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+#
+# Netstal Maschinen AG: MCU25 board
+#
+
+TEXT_BASE = 0xFFFB0000
+
+ifeq ($(debug),1)
+PLATFORM_CPPFLAGS += -DDEBUG -g
+endif
+
diff --git a/board/netstal/mcu25/mcu25.c b/board/netstal/mcu25/mcu25.c
new file mode 100644
index 0000000..dd7bd83
--- /dev/null
+++ b/board/netstal/mcu25/mcu25.c
@@ -0,0 +1,218 @@
+/*
+ *(C) Copyright 2005-2008 Netstal Maschinen AG
+ *    Niklaus Giger (Niklaus.Giger@netstal.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form 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  <ppc4xx.h>
+#include  <asm/processor.h>
+#include  <asm/io.h>
+#include  <asm-ppc/u-boot.h>
+#include  "../common/nm.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MCU25_SLOT_ADDRESS		(0x7A000000 + 0x0A)
+#define MCU25_DIGITAL_IO_REGISTER	(0x7A000000 + 0xc0)
+
+#define MCU25_LED_REGISTER_ADDRESS	(0x7C000000 + 0x10)
+#define MCU25_VERSIONS_REGISTER	(0x7C000000 + 0x0C)
+#define MCU25_IO_CONFIGURATION		(0x7C000000 + 0x0e)
+#define MCU_SW_INSTALL_REQUESTED	0x08
+
+#define SDRAM_LEN	(32 << 20)	/* 32 MB - RAM */
+
+/*
+ * This function is run very early, out of flash, and before devices are
+ * initialized. It is called by lib_ppc/board.c:board_init_f by virtue
+ * of being in the init_sequence array.
+ *
+ * The SDRAM has been initialized already -- start.S:start called
+ * init.S:init_sdram early on -- but it is not yet being used for
+ * anything, not even stack. So be careful.
+ */
+
+/* Attention: If you want 1 microsecs times from the external oscillator
+ * 0x00004051 is okay for u-boot/linux, but different from old vxworks values
+ * 0x00804051 causes problems with u-boot and linux!
+ */
+#define CPC0_CR0_VALUE	0x0007F03C
+#define CPC0_CR1_VALUE	0x00004051
+
+int board_early_init_f (void)
+{
+	/* Documented in A-1171
+	 *
+	 * Interrupt controller setup for the MCU25 board.
+	 * Note: IRQ 0-15  405GP internally generated; high; level sensitive
+	 *       IRQ 16    405GP internally generated; low; level sensitive
+	 *      IRQ 17-24 RESERVED/UNUSED
+	 *      IRQ 31 (EXT IRQ 6) (unused)
+	 */
+	mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
+	mtdcr(uicer, 0x00000000); /* disable all ints */
+	mtdcr(uiccr, 0x00000000); /* set all to be non-critical */
+	mtdcr(uicpr, 0xFFFFE000); /* set int polarities */
+	mtdcr(uictr, 0x00000000); /* set int trigger levels */
+	mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
+
+	mtdcr(cntrl1, CPC0_CR1_VALUE);
+	mtdcr(ecr, 0x60606000);
+	mtdcr(CPC0_EIRR, 0x7C000000);
+	out32(GPIO0_OR,		CFG_GPIO0_OR );
+	out32(GPIO0_TCR,	CFG_GPIO0_TCR);
+	out32(GPIO0_ODR,	CFG_GPIO0_ODR);
+	mtspr(ccr0,      0x00700000);
+
+	return 0;
+}
+
+#ifdef CONFIG_BOARD_PRE_INIT
+int board_pre_init (void)
+{
+	return board_early_init_f ();
+}
+#endif
+
+int sys_install_requested(void)
+{
+	u16 ioValue = in_be16((u16 *)MCU25_DIGITAL_IO_REGISTER);
+	return (ioValue & MCU_SW_INSTALL_REQUESTED) != 0;
+}
+
+int checkboard (void)
+{
+	u16 boardVersReg = in_be16((u16 *)MCU25_VERSIONS_REGISTER);
+	u16 hwConfig   = in_be16((u16 *)MCU25_IO_CONFIGURATION);
+	u16 generation = boardVersReg & 0x0f;
+	u16 index      = boardVersReg & 0xf0;
+
+	/* Cannot be done in board_early_init */
+	mtdcr(cntrl0,  CPC0_CR0_VALUE);
+
+	/* Force /RTS to active. The board it not wired quite
+	 * correctly to use cts/rtc flow control, so just force the
+	 * /RST active and forget about it.
+	 */
+	writeb (readb (0xef600404) | 0x03, 0xef600404);
+	nm_show_print(generation, index, hwConfig);
+	return 0;
+}
+
+u32 hcu_led_get(void)
+{
+	return in_be16((u16 *)MCU25_LED_REGISTER_ADDRESS) & 0x3ff;
+}
+
+/*
+ * hcu_led_set  value to be placed into the LEDs (max 6 bit)
+ */
+void hcu_led_set(u32 value)
+{
+   out_be16((u16 *)MCU25_LED_REGISTER_ADDRESS, value);
+}
+
+/*
+ * sdram_init - Dummy implementation for start.S, spd_sdram  or initdram
+ *		used for HCUx
+ */
+void sdram_init(void)
+{
+	return;
+}
+
+/*
+ * hcu_get_slot
+ */
+u32 hcu_get_slot(void)
+{
+	u16 slot = in_be16((u16 *)MCU25_SLOT_ADDRESS);
+	return slot & 0x7f;
+}
+
+/*
+ * get_serial_number
+ */
+u32 get_serial_number(void)
+{
+	u32 serial = in_be32((u32 *)CFG_FLASH_BASE);
+
+	if (serial == 0xffffffff)
+		return 0;
+
+	return serial;
+}
+
+
+/*
+ * misc_init_r.
+ */
+
+int misc_init_r(void)
+{
+	common_misc_init_r();
+	set_params_for_sw_install( sys_install_requested(), "mcu25" );
+	return 0;
+}
+
+long int initdram(int board_type)
+{
+	unsigned int dram_size = 64*1024*1024;
+	init_ppc405_sdram(dram_size);
+
+#ifdef DEBUG
+	show_sdram_registers();
+#endif
+
+	return dram_size;
+}
+
+#if defined(CONFIG_POST)
+/*
+ * Returns 1 if keys pressed to start the power-on long-running tests
+ * Called from board_init_f().
+ */
+int post_hotkeys_pressed(void)
+{
+	return 0;	/* No hotkeys supported */
+}
+#endif /* CONFIG_POST */
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
+
+/*
+ * Hardcoded flash setup:
+ * Flash 0 is a non-CFI AMD AM29F040 flash, 8 bit flash / 8 bit bus.
+ */
+ulong board_flash_get_legacy (ulong base, int banknum, flash_info_t * info)
+{
+	if (banknum == 0) {	/* non-CFI boot flash */
+		info->portwidth = 1;
+		info->chipwidth = 1;
+		info->interface = FLASH_CFI_X8;
+		return 1;
+	} else
+		return 0;
+}
+
diff --git a/board/netstal/mcu25/u-boot.lds b/board/netstal/mcu25/u-boot.lds
new file mode 100644
index 0000000..bfa0a47
--- /dev/null
+++ b/board/netstal/mcu25/u-boot.lds
@@ -0,0 +1,141 @@
+/*
+ * (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)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+SECTIONS
+{
+  .resetvec 0xFFFFFFFC :
+  {
+    *(.resetvec)
+  } = 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          : {
+    /* The start.o file includes the initial jump vector that
+       must be located in the beginning. It is the basic run-
+       time function that calls all other functions. */
+    cpu/ppc4xx/start.o	(.text)
+
+/*    . = env_offset;*/
+/*    common/environment.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 = .);
+}
+