diff options
Diffstat (limited to 'board/sbc8548/tlb.c')
| -rw-r--r-- | board/sbc8548/tlb.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/board/sbc8548/tlb.c b/board/sbc8548/tlb.c new file mode 100644 index 0000000..af927f1 --- /dev/null +++ b/board/sbc8548/tlb.c @@ -0,0 +1,138 @@ +/* + * 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), + + /* + * TLB 0: 64M Non-cacheable, guarded + * 0xfc000000 56M unused + * 0xff800000 8M boot FLASH + * .... or .... + * 0xfc000000 64M user flash + * + * Out of reset this entry is only 4K. + */ + SET_TLB_ENTRY(1, 0xfc000000, 0xfc000000, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 0, BOOKE_PAGESZ_64M, 1), + + /* + * TLB 1: 1G Non-cacheable, guarded + * 0x80000000 512M PCI1 MEM + * 0xa0000000 512M PCIe MEM + */ + SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 1, BOOKE_PAGESZ_1G, 1), + + /* + * TLB 2: 64M Non-cacheable, guarded + * 0xe0000000 1M CCSRBAR + * 0xe2000000 8M PCI1 IO + * 0xe2800000 8M PCIe IO + */ + SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 2, BOOKE_PAGESZ_64M, 1), + +#ifdef CONFIG_SYS_LBC_SDRAM_BASE + /* + * TLB 3: 64M Cacheable, non-guarded + * 0xf0000000 64M LBC SDRAM First half + */ + SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE, + MAS3_SX|MAS3_SW|MAS3_SR, 0, + 0, 3, BOOKE_PAGESZ_64M, 1), + + /* + * TLB 4: 64M Cacheable, non-guarded + * 0xf4000000 64M LBC SDRAM Second half + */ + SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000, + CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000, + MAS3_SX|MAS3_SW|MAS3_SR, 0, + 0, 4, BOOKE_PAGESZ_64M, 1), +#endif + + /* + * TLB 5: 16M Cacheable, non-guarded + * 0xf8000000 1M 7-segment LED display + * 0xf8100000 1M User switches + * 0xf8300000 1M Board revision + * 0xf8b00000 1M EEPROM + */ + SET_TLB_ENTRY(1, CONFIG_SYS_EPLD_BASE, CONFIG_SYS_EPLD_BASE, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 5, BOOKE_PAGESZ_16M, 1), + +#ifndef CONFIG_SYS_ALT_BOOT + /* + * TLB 6: 64M Non-cacheable, guarded + * 0xec000000 64M 64MB user FLASH + */ + SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 6, BOOKE_PAGESZ_64M, 1), +#else + /* + * TLB 6: 4M Non-cacheable, guarded + * 0xef800000 4M 1st 1/2 8MB soldered FLASH + */ + SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 6, BOOKE_PAGESZ_4M, 1), + + /* + * TLB 7: 4M Non-cacheable, guarded + * 0xefc00000 4M 2nd half 8MB soldered FLASH + */ + SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000, + CONFIG_SYS_ALT_FLASH + 0x400000, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 7, BOOKE_PAGESZ_4M, 1), +#endif + +}; + +int num_tlb_entries = ARRAY_SIZE(tlb_table); |
