uboot-vybrid_public/board/t3corp/init.S

/*
 * (C) Copyright 2010
 * 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 <asm-offsets.h>
#include <ppc_asm.tmpl>
#include <config.h>
#include <asm/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_RWX | SA_G)

	/*
	 * TLB entries for SDRAM are not needed on this platform.
	 * They are dynamically generated in the 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_RWX | SA_G)
#endif

	tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 0xc,
		 AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x20000000, 0xc,
		 AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_PCIE_MEMBASE, SZ_256M, 0xB0000000, 0xd,
		 AC_RW | SA_IG)

	tlbentry(CONFIG_SYS_PCIE0_CFGBASE, SZ_16M, 0x00000000, 0xd,
		 AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_PCIE1_CFGBASE, SZ_16M, 0x20000000, 0xd,
		 AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_PCIE0_XCFGBASE, SZ_1K, 0x10000000, 0xd,
		 AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_PCIE1_XCFGBASE, SZ_1K, 0x30000000, 0xd,
		 AC_RW | SA_IG)

	/* PCIe UTL register */
	tlbentry(CONFIG_SYS_PCIE_BASE, SZ_16K, 0x08010000, 0xc, AC_RW | SA_IG)

	/* TLB-entry for FPGA(s) */
	tlbentry(CONFIG_SYS_FPGA1_BASE, SZ_16M, CONFIG_SYS_FPGA1_BASE, 4,
		 AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_FPGA1_BASE + (16 << 20), SZ_16M,
		 CONFIG_SYS_FPGA1_BASE + (16 << 20), 4, AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_FPGA2_BASE, SZ_16M, CONFIG_SYS_FPGA2_BASE, 4,
		 AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_FPGA3_BASE, SZ_16M, CONFIG_SYS_FPGA3_BASE, 4,
		 AC_RW | SA_IG)

	/* TLB-entry for OCM */
	tlbentry(CONFIG_SYS_OCM_BASE, SZ_1M, 0x00000000, 4,
		 AC_RWX | SA_I)

	/* TLB-entry for Local Configuration registers => peripherals */
	tlbentry(CONFIG_SYS_LOCAL_CONF_REGS, SZ_16M,
		 CONFIG_SYS_LOCAL_CONF_REGS, 4, AC_RWX | SA_IG)

	tlbtab_end