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authorTirumala Marri <tmarri@apm.com>2010-09-28 14:15:21 -0700
committerStefan Roese <sr@denx.de>2010-10-04 11:17:38 +0200
commitd0e6665a24c2c2a3d333db169fcd1261a0903146 (patch)
tree1c2e1af99ce4e712e618f342573a2f766fee8b40 /board/amcc/bluestone/init.S
parent1b8fec1393e33d72d0e24f55ed597673b1c9e884 (diff)
downloadblackbird-obmc-uboot-d0e6665a24c2c2a3d333db169fcd1261a0903146.tar.gz
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APM821xx: Add bluestone board support
Add support code for bluestone board wth APM821XX processor based. This patch includes early board init, misc init, configure EBC, initializes UIC, MAKEALL, board.cfg and MAINTAINERS file. Signed-off-by: Tirumala R Marri <tmarri@apm.com Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'board/amcc/bluestone/init.S')
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+/*
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri@apm.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/mmu.h>
+#include <asm/ppc4xx.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
+
+ /* TLB 0 */
+ tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR,
+ 4, AC_RWX | SA_G)
+
+ /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
+ tlbentry(CONFIG_SYS_INIT_RAM_ADDR, SZ_4K, CONFIG_SYS_INIT_RAM_ADDR,
+ 0, AC_RWX | SA_G)
+
+ /* TLB-entry for OCM */
+ tlbentry(CONFIG_SYS_OCM_BASE, SZ_64K, 0x00040000, 4,
+ AC_RWX | SA_I)
+
+ /* TLB-entry for Local Configuration registers => peripherals */
+ tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_16K,
+ CONFIG_SYS_PERIPHERAL_BASE, 4, AC_RWX | SA_IG)
+ tlbtab_end
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