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/*
* (C) Copyright 2009
* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
*
* Based on board/amcc/canyonlands/init.S
* (C) Copyright 2008
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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
*/
tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR,
4, AC_RWX | SA_G) /* TLB 0 */
/*
* 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)
/* TLB-entry for NVRAM */
tlbentry(CONFIG_SYS_NVRAM_BASE, SZ_1M, CONFIG_SYS_NVRAM_BASE, 4,
AC_RW | SA_IG)
/* TLB-entry for UART */
tlbentry(CONFIG_SYS_UART_BASE, SZ_16K, CONFIG_SYS_UART_BASE, 4,
AC_RW | SA_IG)
/* TLB-entry for IO */
tlbentry(CONFIG_SYS_IO_BASE, SZ_16K, CONFIG_SYS_IO_BASE, 4,
AC_RW | SA_IG)
/* 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)
tlbtab_end
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