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authorFeng Kan <fkan@amcc.com>2008-07-08 22:48:42 -0700
committerStefan Roese <sr@denx.de>2008-07-11 13:18:12 +0200
commit0ce5c8675bb2c61f1d71fb97f0bbe822663fb93d (patch)
treeea10b3bc67cbec4d162067d16af5d5c1365f0237 /board/amcc/redwood/init.S
parent96e5fc0e6a1861d0fea4efa3cd376df95a5b1b89 (diff)
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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>
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+/*
+ * (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