Patch by TsiChung Liew, 23 Sep 2004:

- add support for MPC8220 CPU
- Add support for Alaska and Yukon boards

CHANGELOG

@@ -2,6 +2,10 @@
 Changes since U-Boot 1.1.1:
 ======================================================================
 
+* Patch by TsiChung Liew, 23 Sep 2004:
+  - add support for MPC8220 CPU
+  - Add support for Alaska and Yukon boards
+
 * Fix configuration for ERIC board (needs more room)
 
 * Adjust MIPS compiler options at run-time depending on tools version

MAKEALL

@@ -71,6 +71,14 @@ LIST_4xx="	\
 	WALNUT405	XPEDITE1K					\
 "
 
+#########################################################################
+## MPC8220 Systems
+#########################################################################
+
+LIST_8220="	\
+	Alaska8220	Yukon8220					\
+"
+
 #########################################################################
 ## MPC824x Systems
 #########################################################################
@@ -228,7 +236,7 @@ build_target() {
 for arg in $@
 do
 	case "$arg" in
-	ppc|5xx|5xxx|8xx|824x|8260|85xx|4xx|7xx|74xx| \
+	ppc|5xx|5xxx|8xx|8220|824x|8260|85xx|4xx|7xx|74xx| \
 	arm|SA|ARM7|ARM9|pxa|ixp| \
 	microblaze| \
 	mips| \

Makefile

@@ -825,6 +825,15 @@ WALNUT405_config:	unconfig
 XPEDITE1K_config:	unconfig
 	@./mkconfig $(@:_config=) ppc ppc4xx xpedite1k
 
+#########################################################################
+## MPC8220 Systems
+#########################################################################
+Alaska8220_config:	unconfig
+	@./mkconfig $(@:_config=) ppc mpc8220 alaska
+
+Yukon8220_config:	unconfig
+	@./mkconfig $(@:_config=) ppc mpc8220 yukon
+
 #########################################################################
 ## MPC824x Systems
 #########################################################################

README

@@ -123,24 +123,25 @@ Directory Hierarchy:
 - board		Board dependent files
 - common	Misc architecture independent functions
 - cpu		CPU specific files
-  - 74xx_7xx	Files specific to Motorola MPC74xx and 7xx CPUs
+  - 74xx_7xx	Files specific to Freescale MPC74xx and 7xx CPUs
   - arm720t	Files specific to ARM 720 CPUs
   - arm920t	Files specific to ARM 920 CPUs
-    - imx	Files specific to Motorola MC9328 i.MX CPUs
+    - imx	Files specific to Freescale MC9328 i.MX CPUs
     - s3c24x0	Files specific to Samsung S3C24X0 CPUs
   - arm925t	Files specific to ARM 925 CPUs
   - arm926ejs	Files specific to ARM 926 CPUs
   - at91rm9200	Files specific to Atmel AT91RM9200 CPUs
   - i386	Files specific to i386 CPUs
   - ixp		Files specific to Intel XScale IXP CPUs
-  - mcf52x2	Files specific to Motorola ColdFire MCF52x2 CPUs
+  - mcf52x2	Files specific to Freescale ColdFire MCF52x2 CPUs
   - mips	Files specific to MIPS CPUs
-  - mpc5xx	Files specific to Motorola MPC5xx  CPUs
-  - mpc5xxx	Files specific to Motorola MPC5xxx CPUs
-  - mpc8xx	Files specific to Motorola MPC8xx  CPUs
-  - mpc824x	Files specific to Motorola MPC824x CPUs
-  - mpc8260	Files specific to Motorola MPC8260 CPUs
-  - mpc85xx	Files specific to Motorola MPC85xx CPUs
+  - mpc5xx	Files specific to Freescale MPC5xx  CPUs
+  - mpc5xxx	Files specific to Freescale MPC5xxx CPUs
+  - mpc8xx	Files specific to Freescale MPC8xx  CPUs
+  - mpc8220	Files specific to Freescale MPC8220 CPUs
+  - mpc824x	Files specific to Freescale MPC824x CPUs
+  - mpc8260	Files specific to Freescale MPC8260 CPUs
+  - mpc85xx	Files specific to Freescale MPC85xx CPUs
   - nios	Files specific to Altera NIOS CPUs
   - nios2	Files specific to Altera Nios-II CPUs
   - ppc4xx	Files specific to IBM PowerPC 4xx CPUs
@@ -229,6 +230,7 @@ The following options need to be configured:
 		-------------------
 		CONFIG_MPC823,	CONFIG_MPC850,	CONFIG_MPC855,	CONFIG_MPC860
 	or	CONFIG_MPC5xx
+	or	CONFIG_MPC8220
 	or	CONFIG_MPC824X, CONFIG_MPC8260
 	or	CONFIG_MPC85xx
 	or	CONFIG_IOP480
@@ -2140,6 +2142,7 @@ configurations; the following names are supported:
 
 	ADCIOP_config		FPS860L_config		omap730p2_config
 	ADS860_config		GEN860T_config		pcu_e_config
+	Alaska8220_config
 	AR405_config		GENIETV_config		PIP405_config
 	at91rm9200dk_config	GTH_config		QS823_config
 	CANBT_config		hermes_config		QS850_config
@@ -2161,6 +2164,7 @@ configurations; the following names are supported:
 	FADS860T_config		omap1610inn_config	TQM855L_config
 	FPS850L_config		omap5912osk_config	TQM860L_config
 							WALNUT405_config
+							Yukon8220_config
 							ZPC1900_config
 
 Note: for some board special configuration names may exist; check if

board/alaska/Makefile

+# (C) Copyright 2003-2004
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= $(BOARD).o flash.o extserial.o serial.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################

board/alaska/alaska.c

+/*
+ * (C) Copyright 2004, Freescale Inc.
+ * TsiChung Liew, Tsi-Chung.Liew@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 <mpc8220.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+
+void setupBat (ulong size)
+{
+	ulong batu, batl;
+	int blocksize = 0;
+
+	/* Flash 0 */
+#if defined (CFG_AMD_BOOT)
+	batu = CFG_FLASH0_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+#else
+	batu = CFG_FLASH0_BASE | (BL_16M << 2) | BPP_RW | BPP_RX;
+#endif
+	batl = CFG_FLASH0_BASE | 0x22;
+	write_bat (IBAT0, batu, batl);
+	write_bat (DBAT0, batu, batl);
+
+	/* Flash 1 */
+#if defined (CFG_AMD_BOOT)
+	batu = CFG_FLASH1_BASE | (BL_16M << 2) | BPP_RW | BPP_RX;
+#else
+	batu = CFG_FLASH1_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+#endif
+	batl = CFG_FLASH1_BASE | 0x22;
+	write_bat (IBAT1, batu, batl);
+	write_bat (DBAT1, batu, batl);
+
+	/* CPLD */
+	batu = CFG_CPLD_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+	batl = CFG_CPLD_BASE | 0x22;
+	write_bat (IBAT2, 0, 0);
+	write_bat (DBAT2, batu, batl);
+
+	/* FPGA */
+	batu = CFG_FPGA_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+	batl = CFG_FPGA_BASE | 0x22;
+	write_bat (IBAT3, 0, 0);
+	write_bat (DBAT3, batu, batl);
+
+	/* MBAR - Data only */
+	batu = CFG_MBAR | BPP_RW | BPP_RX;
+	batl = CFG_MBAR | 0x22;
+	mtspr (IBAT4L, 0);
+	mtspr (IBAT4U, 0);
+	mtspr (DBAT4L, batl);
+	mtspr (DBAT4U, batu);
+
+	/* MBAR - SRAM */
+	batu = CFG_SRAM_BASE | BPP_RW | BPP_RX;
+	batl = CFG_SRAM_BASE | 0x42;
+	mtspr (IBAT5L, batl);
+	mtspr (IBAT5U, batu);
+	mtspr (DBAT5L, batl);
+	mtspr (DBAT5U, batu);
+
+	if (size <= 0x800000)	/* 8MB */
+		blocksize = BL_8M << 2;
+	else if (size <= 0x1000000)	/* 16MB */
+		blocksize = BL_16M << 2;
+	else if (size <= 0x2000000)	/* 32MB */
+		blocksize = BL_32M << 2;
+	else if (size <= 0x4000000)	/* 64MB */
+		blocksize = BL_64M << 2;
+	else if (size <= 0x8000000)	/* 128MB */
+		blocksize = BL_128M << 2;
+	else if (size <= 0x10000000)	/* 256MB */
+		blocksize = BL_256M << 2;
+
+	/* Memory */
+	batu = CFG_SDRAM_BASE | blocksize | BPP_RW | BPP_RX;
+	batl = CFG_SDRAM_BASE | 0x42;
+	mtspr (IBAT6L, batl);
+	mtspr (IBAT6U, batu);
+	mtspr (DBAT6L, batl);
+	mtspr (DBAT6U, batu);
+
+	/* memory size is less than 256MB */
+	if (size <= 0x10000000) {
+		/* Nothing */
+		batu = 0;
+		batl = 0;
+	} else {
+		size -= 0x10000000;
+		if (size <= 0x800000)	/* 8MB */
+			blocksize = BL_8M << 2;
+		else if (size <= 0x1000000)	/* 16MB */
+			blocksize = BL_16M << 2;
+		else if (size <= 0x2000000)	/* 32MB */
+			blocksize = BL_32M << 2;
+		else if (size <= 0x4000000)	/* 64MB */
+			blocksize = BL_64M << 2;
+		else if (size <= 0x8000000)	/* 128MB */
+			blocksize = BL_128M << 2;
+		else if (size <= 0x10000000)	/* 256MB */
+			blocksize = BL_256M << 2;
+
+		batu = (CFG_SDRAM_BASE +
+			0x10000000) | blocksize | BPP_RW | BPP_RX;
+		batl = (CFG_SDRAM_BASE + 0x10000000) | 0x42;
+	}
+
+	mtspr (IBAT7L, batl);
+	mtspr (IBAT7U, batu);
+	mtspr (DBAT7L, batl);
+	mtspr (DBAT7U, batu);
+}
+
+long int initdram (int board_type)
+{
+	ulong size;
+
+	size = dramSetup ();
+
+/* if iCache ad dCache is defined */
+#if (CONFIG_COMMANDS & CFG_CMD_CACHE)
+/*    setupBat(size);*/
+#endif
+
+	return size;
+}
+
+int checkboard (void)
+{
+	puts ("Board: Alaska MPC8220 Evaluation Board\n");
+
+	return 0;
+}

board/alaska/config.mk

+#
+# (C) Copyright 2003-2004
+# 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
+#
+
+#
+# alaska board
+#
+
+TEXT_BASE = 0xfff00000
+# TEXT_BASE = 0x00100000
+
+PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)/board

board/alaska/extserial.c

+/*
+ * (C) Copyright 2004, Freescale, Inc
+ * TsiChung Liew, Tsi-Chung.Liew@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
+ *
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <mpc8220.h>
+
+#if defined (CONFIG_EXTUART_CONSOLE)
+#   include <ns16550.h>
+
+#   define PADSERIAL_BAUD_115200   0x40
+#   define PADSERIAL_BAUD_57600    0x20
+#   define PADSERIAL_BAUD_9600     0
+#   define PADCARD_FREQ            18432000
+
+const NS16550_t com_port = (NS16550_t) CFG_NS16550_COM1;
+
+int ext_serial_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	volatile u8 *dipswitch = (volatile u8 *) (CFG_CPLD_BASE + 0x1002);
+	int baud_divisor;
+
+	/* Find out the baud rate speed on debug card dip switches */
+	if (*dipswitch & PADSERIAL_BAUD_115200)
+		gd->baudrate = 115200;
+	else if (*dipswitch & PADSERIAL_BAUD_57600)
+		gd->baudrate = 57600;
+	else
+		gd->baudrate = 9600;
+
+	/* Debug card frequency */
+	baud_divisor = PADCARD_FREQ / (16 * gd->baudrate);
+
+	NS16550_init (com_port, baud_divisor);
+
+	return (0);
+}
+
+void ext_serial_putc (const char c)
+{
+	if (c == '\n')
+		NS16550_putc (com_port, '\r');
+
+	NS16550_putc (com_port, c);
+}
+
+void ext_serial_puts (const char *s)
+{
+	while (*s) {
+		serial_putc (*s++);
+	}
+}
+
+int ext_serial_getc (void)
+{
+	return NS16550_getc (com_port);
+}
+
+int ext_serial_tstc (void)
+{
+	return NS16550_tstc (com_port);
+}
+
+void ext_serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	volatile u8 *dipswitch = (volatile u8 *) (CFG_CPLD_BASE + 0x1002);
+	int baud_divisor;
+
+	/* Find out the baud rate speed on debug card dip switches */
+	if (*dipswitch & PADSERIAL_BAUD_115200)
+		gd->baudrate = 115200;
+	else if (*dipswitch & PADSERIAL_BAUD_57600)
+		gd->baudrate = 57600;
+	else
+		gd->baudrate = 9600;
+
+	/* Debug card frequency */
+	baud_divisor = PADCARD_FREQ / (16 * gd->baudrate);
+
+	NS16550_reinit (com_port, baud_divisor);
+}
+#endif /* CONFIG_EXTUART_CONSOLE */

board/alaska/serial.c

+/*
+ * (C) Copyright 2004, Freescale, Inc
+ * TsiChung Liew, Tsi-Chung.Liew@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
+ *
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <mpc8220.h>
+
+int serial_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+#if defined (CONFIG_EXTUART_CONSOLE)
+	volatile uchar *cpld = (volatile uchar *) CFG_CPLD_BASE;
+#endif
+
+	/* Check CPLD Switch 2 whether is external or internal */
+#if defined (CONFIG_EXTUART_CONSOLE)
+	if ((*cpld & 0x02) == 0x02) {
+		gd->bExtUart = 1;
+		return ext_serial_init ();
+	} else
+#endif
+	{
+#if defined(CONFIG_PSC_CONSOLE)
+		gd->bExtUart = 0;
+		return psc_serial_init ();
+#endif
+	}
+
+	return (0);
+}
+
+void serial_putc (const char c)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		ext_serial_putc (c);
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		psc_serial_putc (c);
+#endif
+	}
+}
+
+void serial_puts (const char *s)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		ext_serial_puts (s);
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		psc_serial_puts (s);
+#endif
+	}
+}
+
+int serial_getc (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		return ext_serial_getc ();
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		return psc_serial_getc ();
+#endif
+	}
+}
+
+int serial_tstc (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		return ext_serial_tstc ();
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		return psc_serial_tstc ();
+#endif
+	}
+}
+
+void serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		ext_serial_setbrg ();
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		psc_serial_setbrg ();
+#endif
+	}
+}

board/alaska/u-boot.lds

+/*
+ * (C) Copyright 2003-2004
+ * 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
+{
+  /* 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/mpc8220/start.o	(.text)
+    *(.text)
+    *(.fixup)
+    *(.got1)
+    . = ALIGN(16);
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+  }
+  .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 = .);
+}

common/cmd_bdinfo.c

@@ -63,9 +63,9 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \
     defined(CONFIG_405EP) || defined(CONFIG_XILINX_ML300)
 	print_str ("procfreq",	    strmhz(buf, bd->bi_procfreq));
-	print_str ("plb_busfreq",	    strmhz(buf, bd->bi_plb_busfreq));
+	print_str ("plb_busfreq",   strmhz(buf, bd->bi_plb_busfreq));
 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || defined(CONFIG_XILINX_ML300)
-	print_str ("pci_busfreq",	    strmhz(buf, bd->bi_pci_busfreq));
+	print_str ("pci_busfreq",   strmhz(buf, bd->bi_pci_busfreq));
 #endif
 #else	/* ! CONFIG_405GP, CONFIG_405CR, CONFIG_405EP, CONFIG_XILINX_ML300 */
 #if defined(CONFIG_8260) || defined(CONFIG_MPC8560)
@@ -79,6 +79,13 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #endif
 	print_str ("busfreq",	    strmhz(buf, bd->bi_busfreq));
 #endif /* CONFIG_405GP, CONFIG_405CR, CONFIG_405EP, CONFIG_XILINX_ML300 */
+#if defined(CONFIG_MPC8220)
+	print_str ("inpfreq",	    strmhz(buf, bd->bi_inpfreq));
+	print_str ("flbfreq",	    strmhz(buf, bd->bi_flbfreq));
+	print_str ("pcifreq",	    strmhz(buf, bd->bi_pcifreq));
+	print_str ("vcofreq",	    strmhz(buf, bd->bi_vcofreq));
+	print_str ("pevfreq",	    strmhz(buf, bd->bi_pevfreq));
+#endif
 
 	puts ("ethaddr     =");
 	for (i=0; i<6; ++i) {

common/cmd_bootm.c

@@ -573,6 +573,13 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
 		/* convert all clock information to MHz */
 		kbd->bi_intfreq /= 1000000L;
 		kbd->bi_busfreq /= 1000000L;
+#if defined(CONFIG_MPC8220)
+        kbd->bi_inpfreq /= 1000000L;
+        kbd->bi_pcifreq /= 1000000L;
+        kbd->bi_pevfreq /= 1000000L;
+        kbd->bi_flbfreq /= 1000000L;
+        kbd->bi_vcofreq /= 1000000L;
+#endif
 #if defined(CONFIG_8260) || defined(CONFIG_MPC8560)
 		kbd->bi_cpmfreq /= 1000000L;
 		kbd->bi_brgfreq /= 1000000L;

cpu/mpc8220/Makefile

+#
+# (C) Copyright 2003
+# 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 $(TOPDIR)/config.mk
+
+LIB	= lib$(CPU).a
+
+START	= start.o
+ASOBJS	= io.o fec_dma_tasks.o
+OBJS	= i2c.o traps.o cpu.o cpu_init.o fec.o dramSetup.o interrupts.o \
+	  loadtask.o uart.o speed.o
+
+all:	.depend $(START) $(ASOBJS) $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) crv $@ $(ASOBJS) $(OBJS)
+
+#########################################################################
+
+.depend:	Makefile $(START:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(START:.o=.S) $(ASOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################

cpu/mpc8220/config.mk

+#
+# (C) Copyright 2003
+# 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
+#
+
+PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
+
+PLATFORM_CPPFLAGS += -DCONFIG_MPC8220 -ffixed-r2 -ffixed-r29 \
+		     -mstring -mcpu=603e -mmultiple

cpu/mpc8220/cpu.c

+/*
+ * (C) Copyright 2000-2003
+ * 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
+ */
+
+/*
+ * CPU specific code for the MPC8220 CPUs
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <mpc8220.h>
+#include <asm/processor.h>
+
+int checkcpu (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	ulong clock = gd->cpu_clk;
+	char buf[32];
+
+	puts ("CPU:   ");
+
+	printf (CPU_ID_STR);
+
+	printf (" (JTAG ID %08lx)", *(vu_long *) (CFG_MBAR + 0x50));
+
+	printf (" at %s MHz\n", strmhz (buf, clock));
+
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	volatile gptmr8220_t *gptmr = (volatile gptmr8220_t *) MMAP_GPTMR;
+	ulong msr;
+
+	/* Interrupts and MMU off */
+	__asm__ __volatile__ ("mfmsr    %0":"=r" (msr):);
+
+	msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
+	__asm__ __volatile__ ("mtmsr    %0"::"r" (msr));
+
+	/* Charge the watchdog timer */
+	gptmr->Prescl = 10;
+	gptmr->Count = 1;
+
+	gptmr->Mode = GPT_TMS_SGPIO;
+
+	gptmr->Control = GPT_CTRL_WDEN | GPT_CTRL_CE;
+
+	return 1;
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Get timebase clock frequency (like cpu_clk in Hz)
+ *
+ */
+unsigned long get_tbclk (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	ulong tbclk;
+
+	tbclk = (gd->bus_clk + 3L) / 4L;
+
+	return (tbclk);
+}
+
+/* ------------------------------------------------------------------------- */

cpu/mpc8220/cpu_init.c

+/*
+ * (C) Copyright 2000-2003
+ * 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 <mpc8220.h>
+
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers.
+ */
+void cpu_init_f (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	volatile flexbus8220_t *flexbus = (volatile flexbus8220_t *) MMAP_FB;
+	volatile pcfg8220_t *portcfg = (volatile pcfg8220_t *) MMAP_PCFG;
+	volatile xlbarb8220_t *xlbarb = (volatile xlbarb8220_t *) MMAP_XLBARB;
+
+	/* Pointer is writable since we allocated a register for it */
+	gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
+
+	/* Clear initial global data */
+	memset ((void *) gd, 0, sizeof (gd_t));
+
+	/* Clear all port configuration */
+	portcfg->pcfg0 = 0;
+	portcfg->pcfg1 = 0;
+	portcfg->pcfg2 = 0;
+	portcfg->pcfg3 = 0;
+
+	/*
+	 * Flexbus Controller: configure chip selects and enable them
+	 */
+#if defined (CFG_CS0_BASE)
+	flexbus->csar0 = CFG_CS0_BASE;
+	flexbus->cscr0 = CFG_CS0_CTRL;
+	flexbus->csmr0 = ((CFG_CS0_MASK - 1) & 0xffff0000) | 1;
+	__asm__ volatile ("sync");
+#endif
+#if defined (CFG_CS1_BASE)
+	flexbus->csar1 = CFG_CS1_BASE;
+	flexbus->cscr1 = CFG_CS1_CTRL;
+	flexbus->csmr1 = ((CFG_CS1_MASK - 1) & 0xffff0000) | 1;
+	__asm__ volatile ("sync");
+#endif
+#if defined (CFG_CS2_BASE)
+	flexbus->csar2 = CFG_CS2_BASE;
+	flexbus->cscr2 = CFG_CS2_CTRL;
+	flexbus->csmr2 = ((CFG_CS2_MASK - 1) & 0xffff0000) | 1;
+	portcfg->pcfg3 |= CFG_CS2_PORT3_CONFIG;
+	__asm__ volatile ("sync");
+#endif
+#if defined (CFG_CS3_BASE)
+	flexbus->csar3 = CFG_CS3_BASE;
+	flexbus->cscr3 = CFG_CS3_CTRL;
+	flexbus->csmr3 = ((CFG_CS3_MASK - 1) & 0xffff0000) | 1;
+	portcfg->pcfg3 |= CFG_CS3_PORT3_CONFIG;
+	__asm__ volatile ("sync");
+#endif
+#if defined (CFG_CS4_BASE)
+	flexbus->csar4 = CFG_CS4_BASE;
+	flexbus->cscr4 = CFG_CS4_CTRL;
+	flexbus->csmr4 = ((CFG_CS4_MASK - 1) & 0xffff0000) | 1;
+	portcfg->pcfg3 |= CFG_CS4_PORT3_CONFIG;
+	__asm__ volatile ("sync");
+#endif
+#if defined (CFG_CS5_BASE)
+	flexbus->csar5 = CFG_CS5_BASE;
+	flexbus->cscr5 = CFG_CS5_CTRL;
+	flexbus->csmr5 = ((CFG_CS5_MASK - 1) & 0xffff0000) | 1;
+	portcfg->pcfg3 |= CFG_CS5_PORT3_CONFIG;
+	__asm__ volatile ("sync");
+#endif
+
+	/* This section of the code cannot place in cpu_init_r(),
+	   it will cause the system to hang */
+	/* enable timebase */
+	xlbarb->config = 0x00002000;
+
+	xlbarb->addrTenTimeOut = 0x1000;
+	xlbarb->dataTenTimeOut = 0x1000;
+	xlbarb->busActTimeOut = 0x2000;
+
+	/* Master Priority Enable */
+	xlbarb->mastPriEn = 0x1f;
+	xlbarb->mastPriority = 0;
+}
+
+/*
+ * initialize higher level parts of CPU like time base and timers
+ */
+int cpu_init_r (void)
+{
+	/* this may belongs to disable interrupt section */
+	/* mask all interrupts */
+	*(vu_long *) 0xf0000700 = 0xfffffc00;
+	*(vu_long *) 0xf0000714 |= 0x0001ffff;
+	*(vu_long *) 0xf0000710 &= ~0x00000f00;
+
+	/* route critical ints to normal ints */
+	*(vu_long *) 0xf0000710 |= 0x00000001;
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_MPC8220_FEC)
+	/* load FEC microcode */
+	loadtask (0, 2);
+#endif
+	return (0);
+}

cpu/mpc8220/dma.h

+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This file is based on code
+ * (C) Copyright Motorola, Inc., 2000
+ *
+ * MPC8220 dma header file
+ */
+
+#ifndef __MPC8220_DMA_H
+#define __MPC8220_DMA_H
+
+#include <common.h>
+#include <mpc8220.h>
+
+/* Task number assignment */
+#define FEC_RECV_TASK_NO            0
+#define FEC_XMIT_TASK_NO            1
+
+/*---------------------------------------------------------------------
+ * Stuff for Ethernet Tx/Rx tasks
+ *---------------------------------------------------------------------
+ */
+
+/* Layout of Ethernet controller Parameter SRAM area:
+ * ----------------------------------------------------------------
+ * 0x00: TBD_BASE, base address of TX BD ring
+ * 0x04: TBD_NEXT, address of next TX BD to be processed
+ * 0x08: RBD_BASE, base address of RX BD ring
+ * 0x0C: RBD_NEXT, address of next RX BD to be processed
+ * ---------------------------------------------------------------
+ * ALL PARAMETERS ARE ALL LONGWORDS (FOUR BYTES EACH).
+ */
+
+/* base address of SRAM area to store parameters used by Ethernet tasks */
+#define FEC_PARAM_BASE  (MMAP_SRAM + 0x5b00)
+
+/* base address of SRAM area for buffer descriptors */
+#define FEC_BD_BASE     (MMAP_SRAM + 0x5b20)
+
+/*---------------------------------------------------------------------
+ * common shortcuts  used  by driver C code
+ *---------------------------------------------------------------------
+ */
+
+/* Disable SmartDMA task */
+#define DMA_TASK_DISABLE(tasknum)						\
+{										\
+	volatile ushort *tcr = (ushort *)(MMAP_DMA + 0x0000001c + 2 * tasknum); \
+	*tcr = (*tcr) & (~0x8000);						\
+}
+
+/* Enable SmartDMA task */
+#define DMA_TASK_ENABLE(tasknum)						\
+{										\
+	volatile ushort *tcr = (ushort *) (MMAP_DMA + 0x0000001c + 2 * tasknum);\
+	*tcr = (*tcr)  | 0x8000;						\
+}
+
+/* Clear interrupt pending bits */
+#define DMA_CLEAR_IEVENT(tasknum)						\
+{										\
+	struct mpc8220_dma *dma = (struct mpc8220_dma *)MMAP_DMA;		\
+	dma->IntPend = (1 << tasknum);						\
+}
+
+#endif  /* __MPC8220_DMA_H */

cpu/mpc8220/dramSetup.h

+/*
+ * dramSetup.h
+ *
+ * Prototypes, etc. for the Motorola MPC8220
+ * embedded cpu chips
+ *
+ * 2004 (c) Freescale, Inc.
+ * Author: TsiChung Liew <Tsi-Chung.Liew@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
+ */
+#ifndef __INCdramsetuph
+#define __INCdramsetuph
+#ifndef __ASSEMBLY__
+/* Where various things are in the SPD */
+#define LOC_TYPE                    2
+#define LOC_CHECKSUM                63
+#define LOC_PHYS_BANKS              5
+#define LOC_LOGICAL_BANKS           17
+#define LOC_ROWS                    3
+#define LOC_COLS                    4
+#define LOC_WIDTH_HIGH              7
+#define LOC_WIDTH_LOW               6
+#define LOC_REFRESH                 12
+#define LOC_BURSTS                  16
+#define LOC_CAS                     18
+#define LOC_CS                      19
+#define LOC_WE                      20
+#define LOC_Tcyc                    9
+#define LOC_Tac                     10
+#define LOC_Trp                     27
+#define LOC_Trrd                    28
+#define LOC_Trcd                    29
+#define LOC_Tras                    30
+#define LOC_Buffered                21
+/* Types of memory the SPD can tell us about.
+ * We can actually only use SDRAM and DDR.
+ */
+#define TYPE_DRAM                   1	/* plain old dram */
+#define TYPE_EDO                    2	/* EDO dram */
+#define TYPE_Nibble                 3	/* serial nibble memory */
+#define TYPE_SDR                    4	/* SDRAM */
+#define TYPE_ROM                    5	/*  */
+#define TYPE_SGRRAM                 6	/* graphics memory */
+#define TYPE_DDR                    7	/* DDR sdram */
+#define SDRAMDS_MASK        0x3	/* each field is 2 bits wide */
+#define SDRAMDS_SBE_SHIFT     8	/* Clock enable drive strength */
+#define SDRAMDS_SBC_SHIFT     6	/* Clocks drive strength */
+#define SDRAMDS_SBA_SHIFT     4	/* Address drive strength */
+#define SDRAMDS_SBS_SHIFT     2	/* SDR DQS drive strength */
+#define SDRAMDS_SBD_SHIFT     0	/* Data and DQS drive strength */
+#define  DRIVE_STRENGTH_HIGH 0
+#define  DRIVE_STRENGTH_MED  1
+#define  DRIVE_STRENGTH_LOW  2
+#define  DRIVE_STRENGTH_OFF  3
+
+#define OK      0
+#define ERROR   -1
+/* Structure to hold information about address muxing. */
+	typedef struct tagMuxDescriptor {
+	u8 MuxValue;
+	u8 Columns;
+	u8 Rows;
+	u8 MoreColumns;
+} muxdesc_t;
+
+/* Structure to define one physical bank of
+ * memory.  Note that dram size in bytes is
+ * (2^^(rows+columns)) * width * banks / 8
+*/
+typedef struct tagDramInfo {
+	u32 size;		/* size in bytes */
+	u32 base;		/* base address */
+	u8 ordinal;		/* where in the memory map will we put this */
+	u8 type;
+	u8 rows;
+	u8 cols;
+	u16 width;		/* width of each chip in bits */
+	u8 banks;		/* number of chips, aka logical banks */
+	u8 bursts;		/* bit-encoded allowable burst length */
+	u8 CAS;			/* bit-encoded CAS latency values */
+	u8 CS;			/* bit-encoded CS latency values */
+	u8 WE;			/* bit-encoded WE latency values */
+	u8 Trp;			/* bit-encoded row precharge time */
+	u8 Trcd;		/* bit-encoded RAS to CAS delay */
+	u8 buffered;		/* buffered or not */
+	u8 refresh;		/* encoded refresh rate */
+} draminfo_t;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __INCdramsetuph */

cpu/mpc8220/fec.h

+/*
+ * (C) Copyright 2003-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This file is based on mpc4200fec.h
+ * (C) Copyright Motorola, Inc., 2000
+ *
+ * odin ethernet header file
+ */
+
+#ifndef __MPC8220_FEC_H
+#define __MPC8220_FEC_H
+
+#include <common.h>
+#include <mpc8220.h>
+#include "dma.h"
+
+typedef struct ethernet_register_set {
+
+/* [10:2]addr = 00 */
+
+/*  Control and status Registers (offset 000-1FF) */
+
+	volatile u32 fec_id;		/* MBAR_ETH + 0x000 */
+	volatile u32 ievent;		/* MBAR_ETH + 0x004 */
+	volatile u32 imask;		/* MBAR_ETH + 0x008 */
+
+	volatile u32 RES0[1];		/* MBAR_ETH + 0x00C */
+	volatile u32 r_des_active;	/* MBAR_ETH + 0x010 */
+	volatile u32 x_des_active;	/* MBAR_ETH + 0x014 */
+	volatile u32 r_des_active_cl;	/* MBAR_ETH + 0x018 */
+	volatile u32 x_des_active_cl;	/* MBAR_ETH + 0x01C */
+	volatile u32 ivent_set;		/* MBAR_ETH + 0x020 */
+	volatile u32 ecntrl;		/* MBAR_ETH + 0x024 */
+
+	volatile u32 RES1[6];		/* MBAR_ETH + 0x028-03C */
+	volatile u32 mii_data;		/* MBAR_ETH + 0x040 */
+	volatile u32 mii_speed;		/* MBAR_ETH + 0x044 */
+	volatile u32 mii_status;	/* MBAR_ETH + 0x048 */
+
+	volatile u32 RES2[5];		/* MBAR_ETH + 0x04C-05C */
+	volatile u32 mib_data;		/* MBAR_ETH + 0x060 */
+	volatile u32 mib_control;	/* MBAR_ETH + 0x064 */
+
+	volatile u32 RES3[6];		/* MBAR_ETH + 0x068-7C */
+	volatile u32 r_activate;	/* MBAR_ETH + 0x080 */
+	volatile u32 r_cntrl;		/* MBAR_ETH + 0x084 */
+	volatile u32 r_hash;		/* MBAR_ETH + 0x088 */
+	volatile u32 r_data;		/* MBAR_ETH + 0x08C */
+	volatile u32 ar_done;		/* MBAR_ETH + 0x090 */
+	volatile u32 r_test;		/* MBAR_ETH + 0x094 */
+	volatile u32 r_mib;		/* MBAR_ETH + 0x098 */
+	volatile u32 r_da_low;		/* MBAR_ETH + 0x09C */
+	volatile u32 r_da_high;		/* MBAR_ETH + 0x0A0 */
+
+	volatile u32 RES4[7];		/* MBAR_ETH + 0x0A4-0BC */
+	volatile u32 x_activate;	/* MBAR_ETH + 0x0C0 */
+	volatile u32 x_cntrl;		/* MBAR_ETH + 0x0C4 */
+	volatile u32 backoff;		/* MBAR_ETH + 0x0C8 */
+	volatile u32 x_data;		/* MBAR_ETH + 0x0CC */
+	volatile u32 x_status;		/* MBAR_ETH + 0x0D0 */
+	volatile u32 x_mib;		/* MBAR_ETH + 0x0D4 */
+	volatile u32 x_test;		/* MBAR_ETH + 0x0D8 */
+	volatile u32 fdxfc_da1;		/* MBAR_ETH + 0x0DC */
+	volatile u32 fdxfc_da2;		/* MBAR_ETH + 0x0E0 */
+	volatile u32 paddr1;		/* MBAR_ETH + 0x0E4 */
+	volatile u32 paddr2;		/* MBAR_ETH + 0x0E8 */
+	volatile u32 op_pause;		/* MBAR_ETH + 0x0EC */
+
+	volatile u32 RES5[4];		/* MBAR_ETH + 0x0F0-0FC */
+	volatile u32 instr_reg;		/* MBAR_ETH + 0x100 */
+	volatile u32 context_reg;	/* MBAR_ETH + 0x104 */
+	volatile u32 test_cntrl;	/* MBAR_ETH + 0x108 */
+	volatile u32 acc_reg;		/* MBAR_ETH + 0x10C */
+	volatile u32 ones;		/* MBAR_ETH + 0x110 */
+	volatile u32 zeros;		/* MBAR_ETH + 0x114 */
+	volatile u32 iaddr1;		/* MBAR_ETH + 0x118 */
+	volatile u32 iaddr2;		/* MBAR_ETH + 0x11C */
+	volatile u32 gaddr1;		/* MBAR_ETH + 0x120 */
+	volatile u32 gaddr2;		/* MBAR_ETH + 0x124 */
+	volatile u32 random;		/* MBAR_ETH + 0x128 */
+	volatile u32 rand1;		/* MBAR_ETH + 0x12C */
+	volatile u32 tmp;		/* MBAR_ETH + 0x130 */
+
+	volatile u32 RES6[3];		/* MBAR_ETH + 0x134-13C */
+	volatile u32 fifo_id;		/* MBAR_ETH + 0x140 */
+	volatile u32 x_wmrk;		/* MBAR_ETH + 0x144 */
+	volatile u32 fcntrl;		/* MBAR_ETH + 0x148 */
+	volatile u32 r_bound;		/* MBAR_ETH + 0x14C */
+	volatile u32 r_fstart;		/* MBAR_ETH + 0x150 */
+	volatile u32 r_count;		/* MBAR_ETH + 0x154 */
+	volatile u32 r_lag;		/* MBAR_ETH + 0x158 */
+	volatile u32 r_read;		/* MBAR_ETH + 0x15C */
+	volatile u32 r_write;		/* MBAR_ETH + 0x160 */
+	volatile u32 x_count;		/* MBAR_ETH + 0x164 */
+	volatile u32 x_lag;		/* MBAR_ETH + 0x168 */
+	volatile u32 x_retry;		/* MBAR_ETH + 0x16C */
+	volatile u32 x_write;		/* MBAR_ETH + 0x170 */
+	volatile u32 x_read;		/* MBAR_ETH + 0x174 */
+
+	volatile u32 RES7[2];		/* MBAR_ETH + 0x178-17C */
+	volatile u32 fm_cntrl;		/* MBAR_ETH + 0x180 */
+	volatile u32 rfifo_data;	/* MBAR_ETH + 0x184 */
+	volatile u32 rfifo_status;	/* MBAR_ETH + 0x188 */
+	volatile u32 rfifo_cntrl;	/* MBAR_ETH + 0x18C */
+	volatile u32 rfifo_lrf_ptr;	/* MBAR_ETH + 0x190 */
+	volatile u32 rfifo_lwf_ptr;	/* MBAR_ETH + 0x194 */
+	volatile u32 rfifo_alarm;	/* MBAR_ETH + 0x198 */
+	volatile u32 rfifo_rdptr;	/* MBAR_ETH + 0x19C */
+	volatile u32 rfifo_wrptr;	/* MBAR_ETH + 0x1A0 */
+	volatile u32 tfifo_data;	/* MBAR_ETH + 0x1A4 */
+	volatile u32 tfifo_status;	/* MBAR_ETH + 0x1A8 */
+	volatile u32 tfifo_cntrl;	/* MBAR_ETH + 0x1AC */
+	volatile u32 tfifo_lrf_ptr;	/* MBAR_ETH + 0x1B0 */
+	volatile u32 tfifo_lwf_ptr;	/* MBAR_ETH + 0x1B4 */
+	volatile u32 tfifo_alarm;	/* MBAR_ETH + 0x1B8 */
+	volatile u32 tfifo_rdptr;	/* MBAR_ETH + 0x1BC */
+	volatile u32 tfifo_wrptr;	/* MBAR_ETH + 0x1C0 */
+
+	volatile u32 reset_cntrl;	/* MBAR_ETH + 0x1C4 */
+	volatile u32 xmit_fsm;		/* MBAR_ETH + 0x1C8 */
+
+	volatile u32 RES8[3];		/* MBAR_ETH + 0x1CC-1D4 */
+	volatile u32 rdes_data0;	/* MBAR_ETH + 0x1D8 */
+	volatile u32 rdes_data1;	/* MBAR_ETH + 0x1DC */
+	volatile u32 r_length;		/* MBAR_ETH + 0x1E0 */
+	volatile u32 x_length;		/* MBAR_ETH + 0x1E4 */
+	volatile u32 x_addr;		/* MBAR_ETH + 0x1E8 */
+	volatile u32 cdes_data;		/* MBAR_ETH + 0x1EC */
+	volatile u32 status;		/* MBAR_ETH + 0x1F0 */
+	volatile u32 dma_control;	/* MBAR_ETH + 0x1F4 */
+	volatile u32 des_cmnd;		/* MBAR_ETH + 0x1F8 */
+	volatile u32 data;		/* MBAR_ETH + 0x1FC */
+
+	/*  MIB COUNTERS (Offset 200-2FF) */
+
+	volatile u32 rmon_t_drop;	/* MBAR_ETH + 0x200 */
+	volatile u32 rmon_t_packets;	/* MBAR_ETH + 0x204 */
+	volatile u32 rmon_t_bc_pkt;	/* MBAR_ETH + 0x208 */
+	volatile u32 rmon_t_mc_pkt;	/* MBAR_ETH + 0x20C */
+	volatile u32 rmon_t_crc_align;	/* MBAR_ETH + 0x210 */
+	volatile u32 rmon_t_undersize;	/* MBAR_ETH + 0x214 */
+	volatile u32 rmon_t_oversize;	/* MBAR_ETH + 0x218 */
+	volatile u32 rmon_t_frag;	/* MBAR_ETH + 0x21C */
+	volatile u32 rmon_t_jab;	/* MBAR_ETH + 0x220 */
+	volatile u32 rmon_t_col;	/* MBAR_ETH + 0x224 */
+	volatile u32 rmon_t_p64;	/* MBAR_ETH + 0x228 */
+	volatile u32 rmon_t_p65to127;	/* MBAR_ETH + 0x22C */
+	volatile u32 rmon_t_p128to255;	/* MBAR_ETH + 0x230 */
+	volatile u32 rmon_t_p256to511;	/* MBAR_ETH + 0x234 */
+	volatile u32 rmon_t_p512to1023;	/* MBAR_ETH + 0x238 */
+	volatile u32 rmon_t_p1024to2047;/* MBAR_ETH + 0x23C */
+	volatile u32 rmon_t_p_gte2048;	/* MBAR_ETH + 0x240 */
+	volatile u32 rmon_t_octets;	/* MBAR_ETH + 0x244 */
+	volatile u32 ieee_t_drop;	/* MBAR_ETH + 0x248 */
+	volatile u32 ieee_t_frame_ok;	/* MBAR_ETH + 0x24C */
+	volatile u32 ieee_t_1col;	/* MBAR_ETH + 0x250 */
+	volatile u32 ieee_t_mcol;	/* MBAR_ETH + 0x254 */
+	volatile u32 ieee_t_def;	/* MBAR_ETH + 0x258 */
+	volatile u32 ieee_t_lcol;	/* MBAR_ETH + 0x25C */
+	volatile u32 ieee_t_excol;	/* MBAR_ETH + 0x260 */
+	volatile u32 ieee_t_macerr;	/* MBAR_ETH + 0x264 */
+	volatile u32 ieee_t_cserr;	/* MBAR_ETH + 0x268 */
+	volatile u32 ieee_t_sqe;	/* MBAR_ETH + 0x26C */
+	volatile u32 t_fdxfc;		/* MBAR_ETH + 0x270 */
+	volatile u32 ieee_t_octets_ok;	/* MBAR_ETH + 0x274 */
+
+	volatile u32 RES9[2];		/* MBAR_ETH + 0x278-27C */
+	volatile u32 rmon_r_drop;	/* MBAR_ETH + 0x280 */
+	volatile u32 rmon_r_packets;	/* MBAR_ETH + 0x284 */
+	volatile u32 rmon_r_bc_pkt;	/* MBAR_ETH + 0x288 */
+	volatile u32 rmon_r_mc_pkt;	/* MBAR_ETH + 0x28C */
+	volatile u32 rmon_r_crc_align;	/* MBAR_ETH + 0x290 */
+	volatile u32 rmon_r_undersize;	/* MBAR_ETH + 0x294 */
+	volatile u32 rmon_r_oversize;	/* MBAR_ETH + 0x298 */
+	volatile u32 rmon_r_frag;	/* MBAR_ETH + 0x29C */
+	volatile u32 rmon_r_jab;	/* MBAR_ETH + 0x2A0 */
+
+	volatile u32 rmon_r_resvd_0;	/* MBAR_ETH + 0x2A4 */
+
+	volatile u32 rmon_r_p64;	/* MBAR_ETH + 0x2A8 */
+	volatile u32 rmon_r_p65to127;	/* MBAR_ETH + 0x2AC */
+	volatile u32 rmon_r_p128to255;	/* MBAR_ETH + 0x2B0 */
+	volatile u32 rmon_r_p256to511;	/* MBAR_ETH + 0x2B4 */
+	volatile u32 rmon_r_p512to1023;	/* MBAR_ETH + 0x2B8 */
+	volatile u32 rmon_r_p1024to2047;/* MBAR_ETH + 0x2BC */
+	volatile u32 rmon_r_p_gte2048;	/* MBAR_ETH + 0x2C0 */
+	volatile u32 rmon_r_octets;	/* MBAR_ETH + 0x2C4 */
+	volatile u32 ieee_r_drop;	/* MBAR_ETH + 0x2C8 */
+	volatile u32 ieee_r_frame_ok;	/* MBAR_ETH + 0x2CC */
+	volatile u32 ieee_r_crc;	/* MBAR_ETH + 0x2D0 */
+	volatile u32 ieee_r_align;	/* MBAR_ETH + 0x2D4 */
+	volatile u32 r_macerr;		/* MBAR_ETH + 0x2D8 */
+	volatile u32 r_fdxfc;		/* MBAR_ETH + 0x2DC */
+	volatile u32 ieee_r_octets_ok;	/* MBAR_ETH + 0x2E0 */
+
+	volatile u32 RES10[6];		/* MBAR_ETH + 0x2E4-2FC */
+
+	volatile u32 RES11[64];		/* MBAR_ETH + 0x300-3FF */
+} ethernet_regs;
+
+/* Receive & Transmit Buffer Descriptor definitions */
+typedef struct BufferDescriptor {
+	u16 status;
+	u16 dataLength;
+	u32 dataPointer;
+} FEC_RBD;
+
+typedef struct {
+	u16 status;
+	u16 dataLength;
+	u32 dataPointer;
+} FEC_TBD;
+
+/* private structure */
+typedef enum {
+	SEVENWIRE,		/* 7-wire       */
+	MII10,			/* MII 10Mbps   */
+	MII100			/* MII 100Mbps  */
+} xceiver_type;
+
+typedef struct {
+	ethernet_regs *eth;
+	xceiver_type xcv_type;	/* transceiver type */
+	FEC_RBD *rbdBase;	/* RBD ring */
+	FEC_TBD *tbdBase;	/* TBD ring */
+	u16 rbdIndex;		/* next receive BD to read */
+	u16 tbdIndex;		/* next transmit BD to send */
+	u16 usedTbdIndex;	/* next transmit BD to clean */
+	u16 cleanTbdNum;	/* the number of available transmit BDs */
+} mpc8220_fec_priv;
+
+/* Ethernet parameter area */
+#define FEC_TBD_BASE	    (FEC_PARAM_BASE + 0x00)
+#define FEC_TBD_NEXT	    (FEC_PARAM_BASE + 0x04)
+#define FEC_RBD_BASE	    (FEC_PARAM_BASE + 0x08)
+#define FEC_RBD_NEXT	    (FEC_PARAM_BASE + 0x0c)
+
+/* BD Numer definitions */
+#define FEC_TBD_NUM	   48	/* The user can adjust this value */
+#define FEC_RBD_NUM	   32	/* The user can adjust this value */
+
+/* packet size limit */
+#define FEC_MAX_PKT_SIZE   1536
+
+/* RBD bits definitions */
+#define FEC_RBD_EMPTY	0x8000	/* Buffer is empty */
+#define FEC_RBD_WRAP	0x2000	/* Last BD in ring */
+#define FEC_RBD_INT	0x1000	/* Interrupt */
+#define FEC_RBD_LAST	0x0800	/* Buffer is last in frame(useless) */
+#define FEC_RBD_MISS	0x0100	/* Miss bit for prom mode */
+#define FEC_RBD_BC	0x0080	/* The received frame is broadcast frame */
+#define FEC_RBD_MC	0x0040	/* The received frame is multicast frame */
+#define FEC_RBD_LG	0x0020	/* Frame length violation */
+#define FEC_RBD_NO	0x0010	/* Nonoctet align frame */
+#define FEC_RBD_SH	0x0008	/* Short frame */
+#define FEC_RBD_CR	0x0004	/* CRC error */
+#define FEC_RBD_OV	0x0002	/* Receive FIFO overrun */
+#define FEC_RBD_TR	0x0001	/* Frame is truncated */
+#define FEC_RBD_ERR	(FEC_RBD_LG | FEC_RBD_NO | FEC_RBD_CR | \
+			 FEC_RBD_OV | FEC_RBD_TR)
+
+/* TBD bits definitions */
+#define FEC_TBD_READY	0x8000	/* Buffer is ready */
+#define FEC_TBD_WRAP	0x2000	/* Last BD in ring */
+#define FEC_TBD_INT	0x1000	/* Interrupt */
+#define FEC_TBD_LAST	0x0800	/* Buffer is last in frame */
+#define FEC_TBD_TC	0x0400	/* Transmit the CRC */
+#define FEC_TBD_ABC	0x0200	/* Append bad CRC */
+
+/* MII-related definitios */
+#define FEC_MII_DATA_ST		0x40000000	/* Start of frame delimiter */
+#define FEC_MII_DATA_OP_RD	0x20000000	/* Perform a read operation */
+#define FEC_MII_DATA_OP_WR	0x10000000	/* Perform a write operation */
+#define FEC_MII_DATA_PA_MSK	0x0f800000	/* PHY Address field mask */
+#define FEC_MII_DATA_RA_MSK	0x007c0000	/* PHY Register field mask */
+#define FEC_MII_DATA_TA		0x00020000	/* Turnaround */
+#define FEC_MII_DATA_DATAMSK	0x0000ffff	/* PHY data field */
+
+#define FEC_MII_DATA_RA_SHIFT	18	/* MII Register address bits */
+#define FEC_MII_DATA_PA_SHIFT	23	/* MII PHY address bits */
+
+#endif /* __MPC8220_FEC_H */

cpu/mpc8220/fec_dma_tasks.S

+/*
+ * Copyright (C) 2004, Freescale Semiconductor, Inc.
+ *
+ * This file contains microcode for the FEC controller of the MPC8220.
+ */
+
+#include <config.h>
+
+#if defined(CONFIG_MPC8220)
+
+/* sas/sccg, gas target */
+.section        smartdmaInitData,"aw",@progbits	/* Initialized data for task variables */
+.section        smartdmaTaskTable,"aw",@progbits	/* Task tables */
+.align  9
+.globl taskTable
+taskTable:
+.globl scEthernetRecv_Entry
+scEthernetRecv_Entry:		/* Task 0 */
+.long   scEthernetRecv_TDT - taskTable	/* Task 0 Descriptor Table */
+.long   scEthernetRecv_TDT - taskTable + 0x00000094
+.long   scEthernetRecv_VarTab - taskTable	/* Task 0 Variable Table */
+.long   scEthernetRecv_FDT - taskTable + 0x03	/* Task 0 Function Descriptor Table & Flags */
+.long   0x00000000
+.long   0x00000000
+.long   scEthernetRecv_CSave - taskTable	/* Task 0 context save space */
+.long   0xf0000000
+.globl scEthernetXmit_Entry
+scEthernetXmit_Entry:		/* Task 1 */
+.long   scEthernetXmit_TDT - taskTable	/* Task 1 Descriptor Table */
+.long   scEthernetXmit_TDT - taskTable + 0x000000e0
+.long   scEthernetXmit_VarTab - taskTable	/* Task 1 Variable Table */
+.long   scEthernetXmit_FDT - taskTable + 0x03	/* Task 1 Function Descriptor Table & Flags */
+.long   0x00000000
+.long   0x00000000
+.long   scEthernetXmit_CSave - taskTable	/* Task 1 context save space */
+.long   0xf0000000
+
+
+.globl scEthernetRecv_TDT
+scEthernetRecv_TDT:	/* Task 0 Descriptor Table */
+.long   0xc4c50000	/* 0000(153):  LCDEXT: idx0 = var9 + var10; idx0 once var0; idx0 += inc0 */
+.long   0x84c5e000	/* 0004(153):  LCD: idx1 = var9 + var11; ; idx1 += inc0 */
+.long   0x10001f08	/* 0008(156):    DRD1A: var7 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x10000380	/* 000C(157):    DRD1A: var0 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x00000f88	/* 0010(158):    DRD1A: var3 = *idx1; FN=0 init=0 WS=0 RS=0 */
+.long   0x81980000	/* 0014(162):  LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */
+.long   0x10000780	/* 0018(164):    DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x60000000	/* 001C(165):    DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long   0x010cf04c	/* 0020(165):    DRD2B1: var4 = EU3(); EU3(var1,var12)  */
+.long   0x82180349	/* 0024(169):  LCD: idx0 = var4; idx0 != var13; idx0 += inc1 */
+.long   0x81c68004	/* 0028(172):    LCD: idx1 = var3 + var13 + 4; idx1 once var0; idx1 += inc0 */
+.long   0x70000000	/* 002C(174):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long   0x018cf04e	/* 0030(174):      DRD2B1: var6 = EU3(); EU3(var1,var14)  */
+.long   0x70000000	/* 0034(175):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long   0x020cf04f	/* 0038(175):      DRD2B1: var8 = EU3(); EU3(var1,var15)  */
+.long   0x00000b88	/* 003C(176):      DRD1A: var2 = *idx1; FN=0 init=0 WS=0 RS=0 */
+.long   0x80025184	/* 0040(205):    LCDEXT: idx1 = 0xf0009184; ; */
+.long   0x86810412	/* 0044(205):    LCD: idx2 = var13, idx3 = var2; idx2 < var16; idx2 += inc2, idx3 += inc2 */
+.long   0x0200cf88	/* 0048(209):      DRD1A: *idx3 = *idx1; FN=0 init=16 WS=0 RS=0 */
+.long   0x80025184	/* 004C(217):    LCDEXT: idx1 = 0xf0009184; ; */
+.long   0x8681845b	/* 0050(217):    LCD: idx2 = var13, idx3 = var3; idx2 < var17; idx2 += inc3, idx3 += inc3 */
+.long   0x0000cf88	/* 0054(221):      DRD1A: *idx3 = *idx1; FN=0 init=0 WS=0 RS=0 */
+.long   0xc31883a4	/* 0058(225):    LCDEXT: idx1 = var6; idx1 == var14; idx1 += inc4 */
+.long   0x80190000	/* 005C(225):    LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */
+.long   0x04008468	/* 0060(227):      DRD1A: idx1 = var13; FN=0 INT init=0 WS=0 RS=0 */
+.long   0xc4038360	/* 0064(232):    LCDEXT: idx1 = var8, idx2 = var7; idx1 == var13; idx1 += inc4, idx2 += inc0 */
+.long   0x81c50000	/* 0068(233):    LCD: idx3 = var3 + var10; idx3 once var0; idx3 += inc0 */
+.long   0x1000cb18	/* 006C(235):      DRD1A: *idx2 = idx3; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x00000f18	/* 0070(236):      DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */
+.long   0xc418836d	/* 0074(238):    LCDEXT: idx1 = var8; idx1 > var13; idx1 += inc5 */
+.long   0x83990000	/* 0078(238):    LCD: idx2 = var7; idx2 once var0; idx2 += inc0 */
+.long   0x10000c00	/* 007C(240):      DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x0000c800	/* 0080(241):      DRD1A: *idx2 = var0; FN=0 init=0 WS=0 RS=0 */
+.long   0x81988000	/* 0084(245):    LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long   0x10000788	/* 0088(247):      DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x60000000	/* 008C(248):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long   0x080cf04c	/* 0090(248):      DRD2B1: idx0 = EU3(); EU3(var1,var12)  */
+.long   0x000001f8	/* 0094(:0):    NOP */
+
+
+.globl scEthernetXmit_TDT
+scEthernetXmit_TDT:	/* Task 1 Descriptor Table */
+.long   0x80095b00	/* 0000(280):  LCDEXT: idx0 = 0xf0025b00; ; */
+.long   0x85c60004	/* 0004(280):  LCD: idx1 = var11 + var12 + 4; idx1 once var0; idx1 += inc0 */
+.long   0x10002308	/* 0008(283):    DRD1A: var8 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x10000f88	/* 000C(284):    DRD1A: var3 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x00000380	/* 0010(285):    DRD1A: var0 = *idx0; FN=0 init=0 WS=0 RS=0 */
+.long   0x81980000	/* 0014(288):  LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */
+.long   0x10000780	/* 0018(290):    DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x60000000	/* 001C(291):    DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long   0x024cf04d	/* 0020(291):    DRD2B1: var9 = EU3(); EU3(var1,var13)  */
+.long   0x84980309	/* 0024(294):  LCD: idx0 = var9; idx0 != var12; idx0 += inc1 */
+.long   0xc0004003	/* 0028(297):    LCDEXT: idx1 = 0x00000003; ; */
+.long   0x81c60004	/* 002C(297):    LCD: idx2 = var3 + var12 + 4; idx2 once var0; idx2 += inc0 */
+.long   0x70000000	/* 0030(299):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long   0x010cf04e	/* 0034(299):      DRD2B1: var4 = EU3(); EU3(var1,var14)  */
+.long   0x70000000	/* 0038(300):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long   0x014cf04f	/* 003C(300):      DRD2B1: var5 = EU3(); EU3(var1,var15)  */
+.long   0x70000000	/* 0040(301):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long   0x028cf050	/* 0044(301):      DRD2B1: var10 = EU3(); EU3(var1,var16)  */
+.long   0x70000000	/* 0048(302):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long   0x018cf051	/* 004C(302):      DRD2B1: var6 = EU3(); EU3(var1,var17)  */
+.long   0x10000b90	/* 0050(303):      DRD1A: var2 = *idx2; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x60000000	/* 0054(304):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long   0x01ccf0a1	/* 0058(304):      DRD2B1: var7 = EU3(); EU3(var2,idx1)  */
+.long   0xc2988312	/* 005C(308):    LCDEXT: idx1 = var5; idx1 > var12; idx1 += inc2 */
+.long   0x83490000	/* 0060(308):    LCD: idx2 = var6 + var18; idx2 once var0; idx2 += inc0 */
+.long   0x00001b10	/* 0064(310):      DRD1A: var6 = idx2; FN=0 init=0 WS=0 RS=0 */
+.long   0x800251a4	/* 0068(315):    LCDEXT: idx1 = 0xf00091a4; ; */
+.long   0xc30104dc	/* 006C(315):    LCDEXT: idx2 = var6, idx3 = var2; idx2 >= var19; idx2 += inc3, idx3 += inc4 */
+.long   0x839a032d	/* 0070(316):    LCD: idx4 = var7; idx4 == var12; idx4 += inc5 */
+.long   0x0220c798	/* 0074(321):      DRD1A: *idx1 = *idx3; FN=0 init=17 WS=0 RS=0 */
+.long   0x800251a4	/* 0078(329):    LCDEXT: idx1 = 0xf00091a4; ; */
+.long   0x99198337	/* 007C(329):    LCD: idx2 = idx2, idx3 = idx3; idx2 > var12; idx2 += inc6, idx3 += inc7 */
+.long   0x022ac798	/* 0080(333):      DRD1A: *idx1 = *idx3; FN=0 init=17 WS=1 RS=1 */
+.long   0x800251a4	/* 0084(350):    LCDEXT: idx1 = 0xf00091a4; ; */
+.long   0xc1430000	/* 0088(350):    LCDEXT: idx2 = var2 + var6; idx2 once var0; idx2 += inc0 */
+.long   0x82998312	/* 008C(351):    LCD: idx3 = var5; idx3 > var12; idx3 += inc2 */
+.long   0x0a2ac790	/* 0090(354):      DRD1A: *idx1 = *idx2; FN=0 TFD init=17 WS=1 RS=1 */
+.long   0x81988000	/* 0094(359):    LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long   0x60000002	/* 0098(361):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=0 RS=0 */
+.long   0x0c4cfc4d	/* 009C(361):      DRD2B1: *idx1 = EU3(); EU3(*idx1,var13)  */
+.long   0xc21883ad	/* 00A0(365):    LCDEXT: idx1 = var4; idx1 == var14; idx1 += inc5 */
+.long   0x80190000	/* 00A4(365):    LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */
+.long   0x04008460	/* 00A8(367):      DRD1A: idx1 = var12; FN=0 INT init=0 WS=0 RS=0 */
+.long   0xc4052305	/* 00AC(371):    LCDEXT: idx1 = var8, idx2 = var10; idx2 == var12; idx1 += inc0, idx2 += inc5 */
+.long   0x81ca0000	/* 00B0(372):    LCD: idx3 = var3 + var20; idx3 once var0; idx3 += inc0 */
+.long   0x1000c718	/* 00B4(374):      DRD1A: *idx1 = idx3; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x00000f18	/* 00B8(375):      DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */
+.long   0xc4188000	/* 00BC(378):    LCDEXT: idx1 = var8; idx1 once var0; idx1 += inc0 */
+.long   0x85190312	/* 00C0(378):    LCD: idx2 = var10; idx2 > var12; idx2 += inc2 */
+.long   0x10000c00	/* 00C4(380):      DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x1000c400	/* 00C8(381):      DRD1A: *idx1 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x00008860	/* 00CC(382):      DRD1A: idx2 = var12; FN=0 init=0 WS=0 RS=0 */
+.long   0x81988000	/* 00D0(386):    LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long   0x10000788	/* 00D4(388):      DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long   0x60000000	/* 00D8(389):      DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long   0x080cf04d	/* 00DC(389):      DRD2B1: idx0 = EU3(); EU3(var1,var13)  */
+.long   0x000001f8	/* 00E0(:0):    NOP */
+
+.align 8
+
+.globl scEthernetRecv_VarTab
+scEthernetRecv_VarTab:	/* Task 0 Variable Table */
+.long   0x00000000	/* var[0] */
+.long   0x00000000	/* var[1] */
+.long   0x00000000	/* var[2] */
+.long   0x00000000	/* var[3] */
+.long   0x00000000	/* var[4] */
+.long   0x00000000	/* var[5] */
+.long   0x00000000	/* var[6] */
+.long   0x00000000	/* var[7] */
+.long   0x00000000	/* var[8] */
+.long   0xf0025b00	/* var[9] */
+.long   0x00000008	/* var[10] */
+.long   0x0000000c	/* var[11] */
+.long   0x80000000	/* var[12] */
+.long   0x00000000	/* var[13] */
+.long   0x10000000	/* var[14] */
+.long   0x20000000	/* var[15] */
+.long   0x00000800	/* var[16] */
+.long   0x00000001	/* var[17] */
+.long   0x00000000	/* var[18] */
+.long   0x00000000	/* var[19] */
+.long   0x00000000	/* var[20] */
+.long   0x00000000	/* var[21] */
+.long   0x00000000	/* var[22] */
+.long   0x00000000	/* var[23] */
+.long   0x00000000	/* inc[0] */
+.long   0x60000000	/* inc[1] */
+.long   0x20000004	/* inc[2] */
+.long   0x20000001	/* inc[3] */
+.long   0x80000000	/* inc[4] */
+.long   0x40000000	/* inc[5] */
+.long   0x00000000	/* inc[6] */
+.long   0x00000000	/* inc[7] */
+
+.align  8
+
+.globl scEthernetXmit_VarTab
+scEthernetXmit_VarTab:	/* Task 1 Variable Table */
+.long   0x00000000	/* var[0] */
+.long   0x00000000	/* var[1] */
+.long   0x00000000	/* var[2] */
+.long   0x00000000	/* var[3] */
+.long   0x00000000	/* var[4] */
+.long   0x00000000	/* var[5] */
+.long   0x00000000	/* var[6] */
+.long   0x00000000	/* var[7] */
+.long   0x00000000	/* var[8] */
+.long   0x00000000	/* var[9] */
+.long   0x00000000	/* var[10] */
+.long   0xf0025b00	/* var[11] */
+.long   0x00000000	/* var[12] */
+.long   0x80000000	/* var[13] */
+.long   0x10000000	/* var[14] */
+.long   0x08000000	/* var[15] */
+.long   0x20000000	/* var[16] */
+.long   0x0000ffff	/* var[17] */
+.long   0xffffffff	/* var[18] */
+.long   0x00000004	/* var[19] */
+.long   0x00000008	/* var[20] */
+.long   0x00000000	/* var[21] */
+.long   0x00000000	/* var[22] */
+.long   0x00000000	/* var[23] */
+.long   0x00000000	/* inc[0] */
+.long   0x60000000	/* inc[1] */
+.long   0x40000000	/* inc[2] */
+.long   0xc000fffc	/* inc[3] */
+.long   0xe0000004	/* inc[4] */
+.long   0x80000000	/* inc[5] */
+.long   0x4000ffff	/* inc[6] */
+.long   0xe0000001	/* inc[7] */
+
+.align 8
+
+.globl scEthernetRecv_FDT
+scEthernetRecv_FDT:	/* Task 0 Function Descriptor Table */
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x21800000	/* and(), EU# 3 */
+.long   0x21e00000	/* or(), EU# 3 */
+.long   0x21400000	/* andn(), EU# 3 */
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+
+.align 8
+
+.globl scEthernetXmit_FDT
+scEthernetXmit_FDT:	/* Task 1 Function Descriptor Table */
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x21800000	/* and(), EU# 3 */
+.long   0x21e00000	/* or(), EU# 3 */
+.long   0x21400000	/* andn(), EU# 3 */
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+.long   0x00000000
+
+
+.globl scEthernetRecv_CSave
+scEthernetRecv_CSave:	/* Task 0 context save space */
+.space  128, 0x0
+
+
+.globl scEthernetXmit_CSave
+scEthernetXmit_CSave:	/* Task 1 context save space */
+.space  128, 0x0
+
+#endif

cpu/mpc8220/i2c.c

+/*
+ * (C) Copyright 2004, Freescale, Inc
+ * TsiChung Liew, Tsi-Chung.Liew@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>
+
+#ifdef CONFIG_HARD_I2C
+
+#include <mpc8220.h>
+#include <i2c.h>
+
+typedef struct mpc8220_i2c {
+	volatile u32 adr;	/* I2Cn + 0x00 */
+	volatile u32 fdr;	/* I2Cn + 0x04 */
+	volatile u32 cr;	/* I2Cn + 0x08 */
+	volatile u32 sr;	/* I2Cn + 0x0C */
+	volatile u32 dr;	/* I2Cn + 0x10 */
+} i2c_t;
+
+/* I2Cn control register bits */
+#define I2C_EN      0x80
+#define I2C_IEN     0x40
+#define I2C_STA     0x20
+#define I2C_TX      0x10
+#define I2C_TXAK    0x08
+#define I2C_RSTA    0x04
+#define I2C_INIT_MASK   (I2C_EN | I2C_STA | I2C_TX | I2C_RSTA)
+
+/* I2Cn status register bits */
+#define I2C_CF      0x80
+#define I2C_AAS     0x40
+#define I2C_BB      0x20
+#define I2C_AL      0x10
+#define I2C_SRW     0x04
+#define I2C_IF      0x02
+#define I2C_RXAK    0x01
+
+#define I2C_TIMEOUT 100
+#define I2C_RETRIES 1
+
+struct mpc8220_i2c_tap {
+	int scl2tap;
+	int tap2tap;
+};
+
+static int mpc_reg_in (volatile u32 * reg);
+static void mpc_reg_out (volatile u32 * reg, int val, int mask);
+static int wait_for_bb (void);
+static int wait_for_pin (int *status);
+static int do_address (uchar chip, char rdwr_flag);
+static int send_bytes (uchar chip, char *buf, int len);
+static int receive_bytes (uchar chip, char *buf, int len);
+static int mpc_get_fdr (int);
+
+static int mpc_reg_in (volatile u32 * reg)
+{
+	return *reg >> 24;
+	__asm__ __volatile__ ("eieio");
+}
+
+static void mpc_reg_out (volatile u32 * reg, int val, int mask)
+{
+	int tmp;
+
+	if (!mask) {
+		*reg = val << 24;
+	} else {
+		tmp = mpc_reg_in (reg);
+		*reg = ((tmp & ~mask) | (val & mask)) << 24;
+	}
+	__asm__ __volatile__ ("eieio");
+
+	return;
+}
+
+static int wait_for_bb (void)
+{
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int timeout = I2C_TIMEOUT;
+	int status;
+
+	status = mpc_reg_in (&regs->sr);
+
+	while (timeout-- && (status & I2C_BB)) {
+#if 1
+		volatile int temp;
+
+		mpc_reg_out (&regs->cr, I2C_STA, I2C_STA);
+		temp = mpc_reg_in (&regs->dr);
+		mpc_reg_out (&regs->cr, 0, I2C_STA);
+		mpc_reg_out (&regs->cr, 0, 0);
+		mpc_reg_out (&regs->cr, I2C_EN, 0);
+#endif
+		udelay (1000);
+		status = mpc_reg_in (&regs->sr);
+	}
+
+	return (status & I2C_BB);
+}
+
+static int wait_for_pin (int *status)
+{
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int timeout = I2C_TIMEOUT;
+
+	*status = mpc_reg_in (&regs->sr);
+
+	while (timeout-- && !(*status & I2C_IF)) {
+		udelay (1000);
+		*status = mpc_reg_in (&regs->sr);
+	}
+
+	if (!(*status & I2C_IF)) {
+		return -1;
+	}
+
+	mpc_reg_out (&regs->sr, 0, I2C_IF);
+	return 0;
+}
+
+static int do_address (uchar chip, char rdwr_flag)
+{
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int status;
+
+	chip <<= 1;
+
+	if (rdwr_flag)
+		chip |= 1;
+
+	mpc_reg_out (&regs->cr, I2C_TX, I2C_TX);
+	mpc_reg_out (&regs->dr, chip, 0);
+
+	if (wait_for_pin (&status))
+		return -2;
+	if (status & I2C_RXAK)
+		return -3;
+	return 0;
+}
+
+static int send_bytes (uchar chip, char *buf, int len)
+{
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int wrcount;
+	int status;
+
+	for (wrcount = 0; wrcount < len; ++wrcount) {
+
+		mpc_reg_out (&regs->dr, buf[wrcount], 0);
+
+		if (wait_for_pin (&status))
+			break;
+
+		if (status & I2C_RXAK)
+			break;
+
+	}
+
+	return !(wrcount == len);
+	return 0;
+}
+
+static int receive_bytes (uchar chip, char *buf, int len)
+{
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int dummy = 1;
+	int rdcount = 0;
+	int status;
+	int i;
+
+	mpc_reg_out (&regs->cr, 0, I2C_TX);
+
+	for (i = 0; i < len; ++i) {
+		buf[rdcount] = mpc_reg_in (&regs->dr);
+
+		if (dummy)
+			dummy = 0;
+		else
+			rdcount++;
+
+		if (wait_for_pin (&status))
+			return -4;
+	}
+
+	mpc_reg_out (&regs->cr, I2C_TXAK, I2C_TXAK);
+	buf[rdcount++] = mpc_reg_in (&regs->dr);
+
+	if (wait_for_pin (&status))
+		return -5;
+
+	mpc_reg_out (&regs->cr, 0, I2C_TXAK);
+	return 0;
+}
+
+/**************** I2C API ****************/
+
+void i2c_init (int speed, int saddr)
+{
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+
+	mpc_reg_out (&regs->cr, 0, 0);
+	mpc_reg_out (&regs->adr, saddr << 1, 0);
+
+	/* Set clock
+	 */
+	mpc_reg_out (&regs->fdr, mpc_get_fdr (speed), 0);
+
+	/* Enable module
+	 */
+	mpc_reg_out (&regs->cr, I2C_EN, I2C_INIT_MASK);
+	mpc_reg_out (&regs->sr, 0, I2C_IF);
+	return;
+}
+
+static int mpc_get_fdr (int speed)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	static int fdr = -1;
+
+	if (fdr == -1) {
+		ulong best_speed = 0;
+		ulong divider;
+		ulong ipb, scl;
+		ulong bestmatch = 0xffffffffUL;
+		int best_i = 0, best_j = 0, i, j;
+		int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8 };
+		struct mpc8220_i2c_tap scltap[] = {
+			{4, 1},
+			{4, 2},
+			{6, 4},
+			{6, 8},
+			{14, 16},
+			{30, 32},
+			{62, 64},
+			{126, 128}
+		};
+
+		ipb = gd->bus_clk;
+		for (i = 7; i >= 0; i--) {
+			for (j = 7; j >= 0; j--) {
+				scl = 2 * (scltap[j].scl2tap +
+					   (SCL_Tap[i] -
+					    1) * scltap[j].tap2tap + 2);
+				if (ipb <= speed * scl) {
+					if ((speed * scl - ipb) < bestmatch) {
+						bestmatch = speed * scl - ipb;
+						best_i = i;
+						best_j = j;
+						best_speed = ipb / scl;
+					}
+				}
+			}
+		}
+		divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2);
+		if (gd->flags & GD_FLG_RELOC) {
+			fdr = divider;
+		} else {
+			printf ("%ld kHz, ", best_speed / 1000);
+			return divider;
+		}
+	}
+
+	return fdr;
+}
+
+int i2c_probe (uchar chip)
+{
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int i;
+
+	for (i = 0; i < I2C_RETRIES; i++) {
+		mpc_reg_out (&regs->cr, I2C_STA, I2C_STA);
+
+		if (!do_address (chip, 0)) {
+			mpc_reg_out (&regs->cr, 0, I2C_STA);
+			break;
+		}
+
+		mpc_reg_out (&regs->cr, 0, I2C_STA);
+		udelay (50);
+	}
+
+	return (i == I2C_RETRIES);
+}
+
+int i2c_read (uchar chip, uint addr, int alen, uchar * buf, int len)
+{
+	uchar xaddr[4];
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int ret = -1;
+
+	xaddr[0] = (addr >> 24) & 0xFF;
+	xaddr[1] = (addr >> 16) & 0xFF;
+	xaddr[2] = (addr >> 8) & 0xFF;
+	xaddr[3] = addr & 0xFF;
+
+	if (wait_for_bb ()) {
+		printf ("i2c_read: bus is busy\n");
+		goto Done;
+	}
+
+	mpc_reg_out (&regs->cr, I2C_STA, I2C_STA);
+	if (do_address (chip, 0)) {
+		printf ("i2c_read: failed to address chip\n");
+		goto Done;
+	}
+
+	if (send_bytes (chip, &xaddr[4 - alen], alen)) {
+		printf ("i2c_read: send_bytes failed\n");
+		goto Done;
+	}
+
+	mpc_reg_out (&regs->cr, I2C_RSTA, I2C_RSTA);
+	if (do_address (chip, 1)) {
+		printf ("i2c_read: failed to address chip\n");
+		goto Done;
+	}
+
+	if (receive_bytes (chip, buf, len)) {
+		printf ("i2c_read: receive_bytes failed\n");
+		goto Done;
+	}
+
+	ret = 0;
+      Done:
+	mpc_reg_out (&regs->cr, 0, I2C_STA);
+	return ret;
+}
+
+int i2c_write (uchar chip, uint addr, int alen, uchar * buf, int len)
+{
+	uchar xaddr[4];
+	i2c_t *regs = (i2c_t *) MMAP_I2C;
+	int ret = -1;
+
+	xaddr[0] = (addr >> 24) & 0xFF;
+	xaddr[1] = (addr >> 16) & 0xFF;
+	xaddr[2] = (addr >> 8) & 0xFF;
+	xaddr[3] = addr & 0xFF;
+
+	if (wait_for_bb ()) {
+		printf ("i2c_write: bus is busy\n");
+		goto Done;
+	}
+
+	mpc_reg_out (&regs->cr, I2C_STA, I2C_STA);
+	if (do_address (chip, 0)) {
+		printf ("i2c_write: failed to address chip\n");
+		goto Done;
+	}
+
+	if (send_bytes (chip, &xaddr[4 - alen], alen)) {
+		printf ("i2c_write: send_bytes failed\n");
+		goto Done;
+	}
+
+	if (send_bytes (chip, buf, len)) {
+		printf ("i2c_write: send_bytes failed\n");
+		goto Done;
+	}
+
+	ret = 0;
+      Done:
+	mpc_reg_out (&regs->cr, 0, I2C_STA);
+	return ret;
+}
+
+uchar i2c_reg_read (uchar chip, uchar reg)
+{
+	char buf;
+
+	i2c_read (chip, reg, 1, &buf, 1);
+
+	return buf;
+}
+
+void i2c_reg_write (uchar chip, uchar reg, uchar val)
+{
+	i2c_write (chip, reg, 1, &val, 1);
+
+	return;
+}
+
+#endif /* CONFIG_HARD_I2C */

cpu/mpc8220/i2cCore.h

+/*
+ * i2cCore.h
+ *
+ * Prototypes, etc. for the Motorola MPC8220
+ * embedded cpu chips
+ *
+ * 2004 (c) Freescale, Inc.
+ * Author: TsiChung Liew <Tsi-Chung.Liew@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
+ */
+#ifndef __INCi2ccoreh
+#define __INCi2ccoreh
+#ifndef __ASSEMBLY__
+/* device types */
+#define I2C_DEVICE_TYPE_EEPROM 0
+#define I2C_EEPROM_ADRS 0xa0
+#define I2C_CTRL_ADRS   I2C_EEPROM_ADRS
+#define EEPROM_ADDR0    0xA2	/* on Dimm SPD eeprom */
+#define EEPROM_ADDR1    0xA4	/* on Board SPD eeprom */
+#define EEPROM_ADDR2    0xD2	/* non-standard eeprom - clock generator */
+/* Control Register */
+#define I2C_CTL_EN      0x80	/* I2C Enable                   */
+#define I2C_CTL_IEN     0x40	/* I2C Interrupt Enable         */
+#define I2C_CTL_STA     0x20	/* Master/Slave Mode select     */
+#define I2C_CTL_TX      0x10	/* Transmit/Receive Mode Select */
+#define I2C_CTL_TXAK    0x08	/* Transmit Acknowledge Enable  */
+#define I2C_CTL_RSTA    0x04	/* Repeat Start                 */
+/* Status Register */
+#define I2C_STA_CF      0x80	/* Data Transfer       */
+#define I2C_STA_AAS     0x40	/* Adressed As Slave   */
+#define I2C_STA_BB      0x20	/* Bus Busy            */
+#define I2C_STA_AL      0x10	/* Arbitration Lost    */
+#define I2C_STA_SRW     0x04	/* Slave Read/Write    */
+#define I2C_STA_IF      0x02	/* I2C Interrupt       */
+#define I2C_STA_RXAK    0x01	/* Receive Acknowledge */
+/* Interrupt Contol Register */
+#define I2C_INT_BNBE2   0x80	/* Bus Not Busy Enable 2 */
+#define I2C_INT_TE2     0x40	/* Transmit Enable 2     */
+#define I2C_INT_RE2     0x20	/* Receive Enable 2      */
+#define I2C_INT_IE2     0x10	/* Interrupt Enable 2    */
+#define I2C_INT_BNBE1   0x08	/* Bus Not Busy Enable 1 */
+#define I2C_INT_TE1     0x04	/* Transmit Enable 1     */
+#define I2C_INT_RE1     0x02	/* Receive Enable 1      */
+#define I2C_INT_IE1     0x01	/* Interrupt Enable 1    */
+#define I2C_POLL_COUNT 0x100000
+#define I2C_ENABLE      0x00000001
+#define I2C_DISABLE     0x00000002
+#define I2C_START       0x00000004
+#define I2C_REPSTART    0x00000008
+#define I2C_STOP        0x00000010
+#define I2C_BITRATE     0x00000020
+#define I2C_SLAVEADR    0x00000040
+#define I2C_STARTADR    0x00000080
+#undef TWOBYTES
+typedef struct i2c_settings {
+	/* Device settings */
+	int bit_rate;		/* Device bit rate */
+	u8 i2c_adr;		/* I2C address */
+	u8 slv_adr;		/* Slave address */
+#ifdef TWOBYTES
+	u16 str_adr;		/* Start address */
+#else
+	u8 str_adr;		/* Start address */
+#endif
+	int xfer_size;		/* Transfer Size */
+
+	int bI2c_en;		/* Enable or Disable */
+	int cmdFlag;		/* I2c Command Flags */
+} i2cset_t;
+
+/*
+int check_status(PSI2C pi2c, u8 sta_bit, u8 truefalse);
+int i2c_enable(PSI2C pi2c, PI2CSET pi2cSet);
+int i2c_disable(PSI2C pi2c);
+int i2c_start(PSI2C pi2c, PI2CSET pi2cSet);
+int i2c_stop(PSI2C pi2c);
+int i2c_clear(PSI2C pi2c);
+int i2c_readblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data);
+int i2c_writeblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data);
+int i2c_readbyte(PSI2C pi2c, u8 *readb, int *index);
+int i2c_writebyte(PSI2C pi2c, u8 *writeb);
+int SetI2cFDR( PSI2C pi2cRegs, int bitrate );
+*/
+#endif /* __ASSEMBLY__ */
+
+#endif /* __INCi2ccoreh */

cpu/mpc8220/interrupts.c

+/*
+ * (C) Copyright -2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2001
+ * Josh Huber <huber@mclx.com>, Mission Critical Linux, 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
+ */
+
+/*
+ * interrupts.c - just enough support for the decrementer/timer
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <command.h>
+
+int interrupt_init_cpu (ulong * decrementer_count)
+{
+	*decrementer_count = get_tbclk () / CFG_HZ;
+
+	return (0);
+}
+
+/****************************************************************************/
+
+/*
+ * Handle external interrupts
+ */
+void external_interrupt (struct pt_regs *regs)
+{
+	puts ("external_interrupt (oops!)\n");
+}
+
+void timer_interrupt_cpu (struct pt_regs *regs)
+{
+	/* nothing to do here */
+	return;
+}
+
+/****************************************************************************/
+
+/*
+ * Install and free a interrupt handler.
+ */
+
+void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg)
+{
+
+}
+
+void irq_free_handler (int vec)
+{
+
+}
+
+/****************************************************************************/
+
+void
+do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+{
+	puts ("IRQ related functions are unimplemented currently.\n");
+}

include/ppc_asm.tmpl

@@ -175,7 +175,7 @@
 #define IM_IMMR		(IM_REGBASE+0x01a8)
 #define IM_SCCR		(IM_REGBASE+0x0c80)
 
-#elif defined(CONFIG_MPC5xxx)
+#elif defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC8220)
 
 #define HID0_ICE_BITPOS	16
 #define HID0_DCE_BITPOS	17