u-boot/board/tqc/tqm85xx/tlb.c
Wolfgang Grandegger 080408fdc7 MPC85xx: TQM8548: use cache for AG and BE variants
This patch makes accesses to the system memory cachable by removing the
caching-inhibited and guarded flags from the relevant TLB entries for
the TQM8548_BE and TQM8548_AG modules. FYI, the Freescale MPC85* boards
are configured similarly.

This results in a big averall performace improvement. TFTP downloads,
NAND Flash accesses, kernel boots, etc. are much faster.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
2009-02-16 18:06:02 -06:00

261 lines
8.8 KiB
C

/*
* Copyright 2008 Freescale Semiconductor, Inc.
*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@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 <common.h>
#include <asm/mmu.h>
struct fsl_e_tlb_entry tlb_table[] = {
/* TLB 0 - for temp stack in cache */
SET_TLB_ENTRY (0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 0, BOOKE_PAGESZ_4K, 0),
SET_TLB_ENTRY (0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 0, BOOKE_PAGESZ_4K, 0),
SET_TLB_ENTRY (0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 0, BOOKE_PAGESZ_4K, 0),
SET_TLB_ENTRY (0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 0, BOOKE_PAGESZ_4K, 0),
#ifndef CONFIG_TQM_BIGFLASH
/*
* TLB 0, 1: 128M Non-cacheable, guarded
* 0xf8000000 128M FLASH
* Out of reset this entry is only 4K.
*/
SET_TLB_ENTRY (1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 1, BOOKE_PAGESZ_64M, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_FLASH_BASE + 0x4000000,
CONFIG_SYS_FLASH_BASE + 0x4000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 0, BOOKE_PAGESZ_64M, 1),
/*
* TLB 2: 256M Non-cacheable, guarded
* 0x80000000 256M PCI1 MEM First half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCI1_MEM_PHYS, CONFIG_SYS_PCI1_MEM_PHYS,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 2, BOOKE_PAGESZ_256M, 1),
/*
* TLB 3: 256M Non-cacheable, guarded
* 0x90000000 256M PCI1 MEM Second half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 3, BOOKE_PAGESZ_256M, 1),
#ifdef CONFIG_PCIE1
/*
* TLB 4: 256M Non-cacheable, guarded
* 0xc0000000 256M PCI express MEM First half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCIE1_MEM_BASE, CONFIG_SYS_PCIE1_MEM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 4, BOOKE_PAGESZ_256M, 1),
/*
* TLB 5: 256M Non-cacheable, guarded
* 0xd0000000 256M PCI express MEM Second half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCIE1_MEM_BASE + 0x10000000,
CONFIG_SYS_PCIE1_MEM_BASE + 0x10000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 5, BOOKE_PAGESZ_256M, 1),
#else /* !CONFIG_PCIE */
/*
* TLB 4: 256M Non-cacheable, guarded
* 0xc0000000 256M Rapid IO MEM First half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_RIO_MEM_BASE, CONFIG_SYS_RIO_MEM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 4, BOOKE_PAGESZ_256M, 1),
/*
* TLB 5: 256M Non-cacheable, guarded
* 0xd0000000 256M Rapid IO MEM Second half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_RIO_MEM_BASE + 0x10000000,
CONFIG_SYS_RIO_MEM_BASE + 0x10000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 5, BOOKE_PAGESZ_256M, 1),
#endif /* CONFIG_PCIE */
/*
* TLB 6: 64M Non-cacheable, guarded
* 0xe0000000 1M CCSRBAR
* 0xe2000000 16M PCI1 IO
* 0xe3000000 16M CAN and NAND Flash
*/
SET_TLB_ENTRY (1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 6, BOOKE_PAGESZ_64M, 1),
#if defined(CONFIG_TQM8548_AG) || defined (CONFIG_TQM8548_BE)
/*
* TLB 7+8: 2G DDR, cache enabled
* 0x00000000 2G DDR System memory
* Without SPD EEPROM configured DDR, this must be setup manually.
*/
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 7, BOOKE_PAGESZ_1G, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 8, BOOKE_PAGESZ_1G, 1),
#else
/*
* TLB 7+8: 512M DDR, cache disabled (needed for memory test)
* 0x00000000 512M DDR System memory
* Without SPD EEPROM configured DDR, this must be setup manually.
*/
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 7, BOOKE_PAGESZ_256M, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 8, BOOKE_PAGESZ_256M, 1),
#endif
#ifdef CONFIG_PCIE1
/*
* TLB 9: 16M Non-cacheable, guarded
* 0xef000000 16M PCI express IO
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCIE1_IO_BASE, CONFIG_SYS_PCIE1_IO_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 9, BOOKE_PAGESZ_16M, 1),
#endif /* CONFIG_PCIE */
#else /* CONFIG_TQM_BIGFLASH */
/*
* TLB 0,1,2,3: 1G Non-cacheable, guarded
* 0xc0000000 1G FLASH
* Out of reset this entry is only 4K.
*/
SET_TLB_ENTRY (1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 3, BOOKE_PAGESZ_256M, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_FLASH_BASE + 0x10000000,
CONFIG_SYS_FLASH_BASE + 0x10000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 2, BOOKE_PAGESZ_256M, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_FLASH_BASE + 0x20000000,
CONFIG_SYS_FLASH_BASE + 0x20000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 1, BOOKE_PAGESZ_256M, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_FLASH_BASE + 0x30000000,
CONFIG_SYS_FLASH_BASE + 0x30000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 0, BOOKE_PAGESZ_256M, 1),
/*
* TLB 4: 256M Non-cacheable, guarded
* 0x80000000 256M PCI1 MEM First half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCI1_MEM_PHYS, CONFIG_SYS_PCI1_MEM_PHYS,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 4, BOOKE_PAGESZ_256M, 1),
/*
* TLB 5: 256M Non-cacheable, guarded
* 0x90000000 256M PCI1 MEM Second half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 5, BOOKE_PAGESZ_256M, 1),
#ifdef CONFIG_PCIE1
/*
* TLB 6: 256M Non-cacheable, guarded
* 0xc0000000 256M PCI express MEM First half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCIE1_MEM_BASE, CONFIG_SYS_PCIE1_MEM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 6, BOOKE_PAGESZ_256M, 1),
#else /* !CONFIG_PCIE */
/*
* TLB 6: 256M Non-cacheable, guarded
* 0xb0000000 256M Rapid IO MEM First half
*/
SET_TLB_ENTRY (1, CONFIG_SYS_RIO_MEM_BASE, CONFIG_SYS_RIO_MEM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 6, BOOKE_PAGESZ_256M, 1),
#endif /* CONFIG_PCIE */
/*
* TLB 7: 64M Non-cacheable, guarded
* 0xa0000000 1M CCSRBAR
* 0xa2000000 16M PCI1 IO
* 0xa3000000 16M CAN and NAND Flash
*/
SET_TLB_ENTRY (1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 7, BOOKE_PAGESZ_64M, 1),
/*
* TLB 8+9: 512M DDR, cache disabled (needed for memory test)
* 0x00000000 512M DDR System memory
* Without SPD EEPROM configured DDR, this must be setup manually.
* Make sure the TLB count at the top of this table is correct.
* Likely it needs to be increased by two for these entries.
*/
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 8, BOOKE_PAGESZ_256M, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 9, BOOKE_PAGESZ_256M, 1),
#ifdef CONFIG_PCIE1
/*
* TLB 10: 16M Non-cacheable, guarded
* 0xaf000000 16M PCI express IO
*/
SET_TLB_ENTRY (1, CONFIG_SYS_PCIE1_IO_BASE, CONFIG_SYS_PCIE1_IO_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
0, 10, BOOKE_PAGESZ_16M, 1),
#endif /* CONFIG_PCIE */
#endif /* CONFIG_TQM_BIGFLASH */
};
int num_tlb_entries = ARRAY_SIZE (tlb_table);