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/*
* (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 <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
*/
#ifndef CONFIG_NAND_SPL
tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR, 4, AC_RWX | SA_G) /* TLB 0 */
#else
tlbentry(CONFIG_SYS_NAND_BOOT_SPL_SRC, SZ_4K, CONFIG_SYS_NAND_BOOT_SPL_SRC, 4, AC_RWX | SA_G)
tlbentry(CONFIG_SYS_SDRAM_BASE, SZ_256M, CONFIG_SYS_SDRAM_BASE, 0, AC_RWX | SA_IG)
tlbentry(256 << 20, SZ_256M, 256 << 20, 0, AC_RWX | SA_IG)
#endif
/*
* 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_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)
#if !defined(CONFIG_ARCHES)
/* TLB-entry for NAND */
tlbentry(CONFIG_SYS_NAND_ADDR, SZ_1K, CONFIG_SYS_NAND_ADDR, 4, AC_RWX | SA_IG)
/* TLB-entry for CPLD */
tlbentry(CONFIG_SYS_BCSR_BASE, SZ_1K, CONFIG_SYS_BCSR_BASE, 4, AC_RW | SA_IG)
#else
/* TLB-entry for FPGA */
tlbentry(CONFIG_SYS_FPGA_BASE, SZ_16M, CONFIG_SYS_FPGA_BASE, 4, AC_RW | SA_IG)
#endif
/* 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)
/* AHB: Internal USB Peripherals (USB, SATA) */
tlbentry(CONFIG_SYS_AHB_BASE, SZ_1M, 0xbff00000, 4, AC_RWX | SA_IG)
#if defined(CONFIG_RAPIDIO)
/* TLB-entries for RapidIO (SRIO) */
tlbentry(CONFIG_SYS_SRGPL0_REG_BAR, SZ_16M, CONFIG_SYS_SRGPL0_REG_BAR,
0xD, AC_RW | SA_IG)
tlbentry(CONFIG_SYS_SRGPL0_CFG_BAR, SZ_16M, CONFIG_SYS_SRGPL0_CFG_BAR,
0xD, AC_RW | SA_IG)
tlbentry(CONFIG_SYS_SRGPL0_MNT_BAR, SZ_16M, CONFIG_SYS_SRGPL0_MNT_BAR,
0xD, AC_RW | SA_IG)
tlbentry(CONFIG_SYS_I2ODMA_BASE, SZ_1K, 0x00100000,
0x4, AC_RW | SA_IG)
#endif
tlbtab_end
#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
/*
* For NAND booting the first TLB has to be reconfigured to full size
* and with caching disabled after running from RAM!
*/
#define TLB00 TLB0(CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M)
#define TLB01 TLB1(CONFIG_SYS_BOOT_BASE_ADDR, 1)
#define TLB02 TLB2(AC_RWX | SA_IG)
.globl reconfig_tlb0
reconfig_tlb0:
sync
isync
addi r4,r0,0x0000 /* TLB entry #0 */
lis r5,TLB00@h
ori r5,r5,TLB00@l
tlbwe r5,r4,0x0000 /* Save it out */
lis r5,TLB01@h
ori r5,r5,TLB01@l
tlbwe r5,r4,0x0001 /* Save it out */
lis r5,TLB02@h
ori r5,r5,TLB02@l
tlbwe r5,r4,0x0002 /* Save it out */
sync
isync
blr
#endif
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