ppc4xx: Initial framework of the AMCC PPC460SX redwood reference board.

Add AMCC Redwood reference board that uses the latest
PPC 464 CPU processor combined with a rich mix of peripheral
controllers. The board will support PCIe, mutiple Gig ethernet
ports, advanced hardware RAID assistance and IEEE 1588.

Signed-off-by: Feng Kan <fkan@amcc.com>
Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 77 insertions, 0 deletions

diff --git a/board/amcc/redwood/init.S b/board/amcc/redwood/init.S
new file mode 100644
index 0000000000..fcffada305
--- /dev/null
+++ b/board/amcc/redwood/init.S
@@ -0,0 +1,77 @@
+/*
+ * (C) Copyright 2008
+ * Feng Kan, Applied Micro Circuits Corp., fkan@amcc.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 <ppc_asm.tmpl>
+#include <config.h>
+#include <asm-ppc/mmu.h>
+
+/**************************************************************************
+ * TLB TABLE
+ *
+ * This table is used by the cpu boot code to setup the initial tlb
+ * entries. Rather than make broad assumptions in the cpu source tree,
+ * this table lets each board set things up however they like.
+ *
+ *  Pointer to the table is returned in r1
+ *
+ *************************************************************************/
+
+	.section .bootpg,"ax"
+	.globl tlbtab
+tlbtab:
+	tlbtab_start
+
+	/*
+	 * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
+	 * speed up boot process. It is patched after relocation to enable SA_I
+	 */
+	tlbentry(0xff000000, SZ_16M, 0xff000000, 4, AC_R|AC_W|AC_X|SA_G)
+
+	/*
+	 * TLB entries for SDRAM are not needed on this platform.
+	 * They are dynamically generated in the SPD DDR(2) detection
+	 * routine.
+	 */
+
+	/* Although 512 KB, map 256k at a time */
+	tlbentry(CFG_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_R|AC_W|AC_X|SA_I)
+	tlbentry(CFG_ISRAM_BASE + 0x40000, SZ_256K, 0x00040000, 4, AC_R|AC_W|AC_X|SA_I)
+
+	tlbentry(CFG_OPER_FLASH, SZ_16M, 0xE7000000, 4,AC_R|AC_W|AC_X|SA_G|SA_I)
+
+	/*
+	 * Peripheral base
+	 */
+	tlbentry(CFG_PERIPHERAL_BASE, SZ_16K, 0xEF600000, 4, AC_R|AC_W|SA_G|SA_I)
+
+	tlbentry(CFG_PCIE0_XCFGBASE,SZ_16M, 0x00000000, 0xC, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCIE1_XCFGBASE,SZ_16M, 0x10000000, 0xC, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCIE2_XCFGBASE,SZ_16M, 0x20000000, 0xC, AC_R|AC_W|SA_G|SA_I)
+
+	tlbentry(CFG_PCIE0_MEMBASE, SZ_256M, 0x00000000, 0xD, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCIE1_MEMBASE, SZ_256M, 0x00000000, 0xE, AC_R|AC_W|SA_G|SA_I)
+
+	tlbentry(CFG_PCIE0_REGBASE, SZ_64K, 0x30000000, 0xC, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCIE1_REGBASE, SZ_64K, 0x30010000, 0xC, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCIE2_REGBASE, SZ_64K, 0x30020000, 0xC, AC_R|AC_W|SA_G|SA_I)
+	tlbtab_end