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authorWolfgang Denk <wd@denx.de>2009-07-29 09:25:52 +0200
committerWolfgang Denk <wd@denx.de>2009-07-29 09:25:52 +0200
commitd7b0781e2b734ff64ba71847a3ab5340ca547a51 (patch)
tree3d7701523799c106759d9598a9977472e1f38543 /board/gdsys/compactcenter/init.S
parent03a14104f1ccd395caa774c077b4305963afebf7 (diff)
parent042d01c72e0ea95731708dd24bb8b6cf42e75c80 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-ppc4xx
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+/*
+ * (C) Copyright 2009
+ * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * Based on board/amcc/canyonlands/init.S
+ * (C) Copyright 2008
+ * Stefan Roese, DENX Software Engineering, sr@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 <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(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR,
+ 4, AC_R|AC_W|AC_X|SA_G) /* TLB 0 */
+
+ /*
+ * TLB entries for SDRAM are not needed on this platform.
+ * They are dynamically generated in the SPD DDR(2) detection
+ * routine.
+ */
+
+#ifdef CONFIG_SYS_INIT_RAM_DCACHE
+ /* 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_R|AC_W|AC_X|SA_G)
+#endif
+
+ tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 0xC,
+ AC_R|AC_W|SA_G|SA_I)
+ tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x20000000, 0xC,
+ AC_R|AC_W|SA_G|SA_I)
+
+ /* TLB-entry for NVRAM */
+ tlbentry(CONFIG_SYS_NVRAM_BASE, SZ_1M, CONFIG_SYS_NVRAM_BASE, 4,
+ AC_R|AC_W|SA_G|SA_I)
+
+ /* TLB-entry for UART */
+ tlbentry(CONFIG_SYS_UART_BASE, SZ_16K, CONFIG_SYS_UART_BASE, 4,
+ AC_R|AC_W|SA_G|SA_I)
+
+ /* TLB-entry for IO */
+ tlbentry(CONFIG_SYS_IO_BASE, SZ_16K, CONFIG_SYS_IO_BASE, 4,
+ AC_R|AC_W|SA_G|SA_I)
+
+ /* TLB-entry for OCM */
+ tlbentry(CONFIG_SYS_OCM_BASE, SZ_1M, 0x00000000, 4,
+ AC_R|AC_W|AC_X|SA_I)
+
+ /* TLB-entry for Local Configuration registers => peripherals */
+ tlbentry(CONFIG_SYS_LOCAL_CONF_REGS, SZ_16M, CONFIG_SYS_LOCAL_CONF_REGS,
+ 4, AC_R|AC_W|AC_X|SA_G|SA_I)
+
+ /* AHB: Internal USB Peripherals (USB, SATA) */
+ tlbentry(CONFIG_SYS_AHB_BASE, SZ_1M, 0xbff00000, 4,
+ AC_R|AC_W|AC_X|SA_G|SA_I)
+
+ tlbtab_end