xref: /openbmc/u-boot/board/socrates/tlb.c (revision 83d290c56fab2d38cd1ab4c4cc7099559c1d5046)

// 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);