Add support for EmbeddedPlanet EP88x boards
Patch by Yuli Barcohen, 13 Jul 2005
diff --git a/board/ep88x/Makefile b/board/ep88x/Makefile
new file mode 100644
index 0000000..9123a80
--- /dev/null
+++ b/board/ep88x/Makefile
@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2004 Arabella Software Ltd.
+# Yuli Barcohen <yuli@arabellasw.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = lib$(BOARD).a
+
+OBJS := $(BOARD).o
+
+$(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
+
+#########################################################################
diff --git a/board/ep88x/config.mk b/board/ep88x/config.mk
new file mode 100644
index 0000000..72b326c
--- /dev/null
+++ b/board/ep88x/config.mk
@@ -0,0 +1,27 @@
+#
+# Copyright (C) 2005 Arabella Software Ltd.
+# Yuli Barcohen <yuli@arabellasw.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
+#
+
+#
+# Embedded Planet EP88x boards
+#
+TEXT_BASE = 0xFC000000
diff --git a/board/ep88x/ep88x.c b/board/ep88x/ep88x.c
new file mode 100644
index 0000000..5f57f36
--- /dev/null
+++ b/board/ep88x/ep88x.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2005 Arabella Software Ltd.
+ * Yuli Barcohen <yuli@arabellasw.com>
+ *
+ * Support for Embedded Planet EP88x boards.
+ * Tested on EP88xC with MPC885 CPU, 64MB SDRAM and 16MB flash.
+ *
+ * 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 <mpc8xx.h>
+
+/*
+ * SDRAM uses two Micron chips.
+ * Minimal CPU frequency is 40MHz.
+ */
+static uint sdram_table[] = {
+ /* Single read (offset 0x00 in UPM RAM) */
+ 0xEFCBCC04, 0x0F37C804, 0x0EEEC004, 0x01B98404,
+ 0x1FF74C00, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05,
+
+ /* Burst read (offset 0x08 in UPM RAM) */
+ 0xEFCBCC04, 0x0F37C804, 0x0EEEC004, 0x00BDC404,
+ 0x00FFCC00, 0x00FFCC00, 0x01FB8C00, 0x1FF74C00,
+ 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05,
+ 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05,
+
+ /* Single write (offset 0x18 in UPM RAM) */
+ 0xEFCBCC04, 0x0F37C804, 0x0EEE8002, 0x01B90404,
+ 0x1FF74C05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05,
+
+ /* Burst write (offset 0x20 in UPM RAM) */
+ 0xEFCBCC04, 0x0F37C804, 0x0EEE8000, 0x00BD4400,
+ 0x00FFCC00, 0x00FFCC02, 0x01FB8C04, 0x1FF74C05,
+ 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05,
+ 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05,
+
+ /* Refresh (offset 0x30 in UPM RAM) */
+ 0xEFFACC04, 0x0FF5CC04, 0x0FFFCC04, 0x1FFFCC04,
+ 0xFFFFCC05, 0xFFFFCC05, 0xEFFB8C34, 0x0FF74C34,
+ 0x0FFACCB4, 0x0FF5CC34, 0x0FFFC034, 0x0FFFC0B4,
+
+ /* Exception (offset 0x3C in UPM RAM) */
+ 0x0FEA8034, 0x1FB54034, 0xFFFFCC34, 0xFFFFCC05
+};
+
+int board_early_init_f (void)
+{
+ vu_char *bcsr = (vu_char *)CFG_BCSR;
+
+ bcsr[0] |= 0x0C; /* Turn the LEDs off */
+ bcsr[2] |= 0x08; /* Enable flash WE# line - necessary for
+ flash detection by CFI driver
+ */
+
+#if defined(CONFIG_8xx_CONS_SMC1)
+ bcsr[6] |= 0x10; /* Enables RS-232 transceiver */
+#endif
+#if defined(CONFIG_8xx_CONS_SCC2)
+ bcsr[7] |= 0x10; /* Enables RS-232 transceiver */
+#endif
+#ifdef CONFIG_ETHER_ON_FEC1
+ bcsr[8] |= 0xC0; /* Enable Ethernet 1 PHY */
+#endif
+#ifdef CONFIG_ETHER_ON_FEC2
+ bcsr[8] |= 0x30; /* Enable Ethernet 2 PHY */
+#endif
+
+ return 0;
+}
+
+long int initdram (int board_type)
+{
+ long int msize;
+ volatile immap_t *immap = (volatile immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+ upmconfig(UPMA, sdram_table, sizeof(sdram_table) / sizeof(uint));
+
+ /* Configure SDRAM refresh */
+ memctl->memc_mptpr = MPTPR_PTP_DIV2; /* BRGCLK/2 */
+
+ memctl->memc_mamr = (65 << 24) | CFG_MAMR; /* No refresh */
+ udelay(100);
+
+ /* Run MRS pattern from location 0x36 */
+ memctl->memc_mar = 0x88;
+ memctl->memc_mcr = 0x80002236;
+ udelay(100);
+
+ memctl->memc_mamr |= MAMR_PTAE; /* Enable refresh */
+ memctl->memc_or1 = ~(CFG_SDRAM_MAX_SIZE - 1) | OR_CSNT_SAM;
+ memctl->memc_br1 = CFG_SDRAM_BASE | BR_PS_32 | BR_MS_UPMA | BR_V;
+
+ msize = get_ram_size(CFG_SDRAM_BASE, CFG_SDRAM_MAX_SIZE);
+ memctl->memc_or1 |= ~(msize - 1);
+
+ return msize;
+}
+
+int checkboard( void )
+{
+ vu_char *bcsr = (vu_char *)CFG_BCSR;
+
+ puts("Board: ");
+ switch (bcsr[15]) {
+ case 0xE7:
+ puts("EP88xC 1.0");
+ break;
+ default:
+ printf("unknown ID=%02X", bcsr[15]);
+ }
+ printf(" CPLD revision %d\n", bcsr[14]);
+
+ return 0;
+}
diff --git a/board/ep88x/u-boot.lds b/board/ep88x/u-boot.lds
new file mode 100644
index 0000000..1d2a7d7
--- /dev/null
+++ b/board/ep88x/u-boot.lds
@@ -0,0 +1,122 @@
+/*
+ * (C) Copyright 2001-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Modified by Yuli Barcohen <yuli@arabellasw.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
+ */
+
+OUTPUT_ARCH(powerpc)
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ cpu/mpc8xx/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 = .);
+}
+ENTRY(_start)