tlb.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2008
* Sergei Poselenov, Emcraft Systems, sposelenov@emcraft.com.
*
* Copyright 2008 Freescale Semiconductor, Inc.
*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#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 1: 64M Non-cacheable, guarded
* 0xfc000000 64M 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),
/*
* 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),
#if defined(CONFIG_SYS_FPGA_BASE)
/*
* TLB 4: 1M Non-cacheable, guarded
* 0xc0000000 1M FPGA and NAND
*/
SET_TLB_ENTRY(1, CONFIG_SYS_FPGA_BASE, CONFIG_SYS_FPGA_BASE,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 4, BOOKE_PAGESZ_1M, 1),
#endif
/*
* TLB 5: 64M Non-cacheable, guarded
* 0xc8000000 16M LIME GDC framebuffer
* 0xc9fc0000 256K LIME GDC MMIO
* (0xcbfc0000 256K LIME GDC MMIO)
* MMIO is relocatable and could be at 0xcbfc0000
*/
SET_TLB_ENTRY(1, CONFIG_SYS_LIME_BASE, CONFIG_SYS_LIME_BASE,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 5, BOOKE_PAGESZ_64M, 1),
/*
* TLB 6: 64M Non-cacheable, guarded
* 0xe000_0000 1M CCSRBAR
* 0xe200_0000 16M PCI1 IO
*/
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_SPD_EEPROM)
/*
* 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.
* 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, 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
};
int num_tlb_entries = ARRAY_SIZE(tlb_table);