mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 13:56:30 +00:00
92 lines
2.2 KiB
C
92 lines
2.2 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/processor.h>
|
|
#include <asm/mmu.h>
|
|
|
|
void set_tlb(u8 tlb, u32 epn, u64 rpn,
|
|
u8 perms, u8 wimge,
|
|
u8 ts, u8 esel, u8 tsize, u8 iprot)
|
|
{
|
|
u32 _mas0, _mas1, _mas2, _mas3, _mas7;
|
|
|
|
_mas0 = FSL_BOOKE_MAS0(tlb, esel, 0);
|
|
_mas1 = FSL_BOOKE_MAS1(1, iprot, 0, ts, tsize);
|
|
_mas2 = FSL_BOOKE_MAS2(epn, wimge);
|
|
_mas3 = FSL_BOOKE_MAS3(rpn, 0, perms);
|
|
_mas7 = rpn >> 32;
|
|
|
|
mtspr(MAS0, _mas0);
|
|
mtspr(MAS1, _mas1);
|
|
mtspr(MAS2, _mas2);
|
|
mtspr(MAS3, _mas3);
|
|
#ifdef CONFIG_ENABLE_36BIT_PHYS
|
|
mtspr(MAS7, _mas7);
|
|
#endif
|
|
asm volatile("isync;msync;tlbwe;isync");
|
|
}
|
|
|
|
void disable_tlb(u8 esel)
|
|
{
|
|
u32 _mas0, _mas1, _mas2, _mas3, _mas7;
|
|
|
|
_mas0 = FSL_BOOKE_MAS0(1, esel, 0);
|
|
_mas1 = 0;
|
|
_mas2 = 0;
|
|
_mas3 = 0;
|
|
_mas7 = 0;
|
|
|
|
mtspr(MAS0, _mas0);
|
|
mtspr(MAS1, _mas1);
|
|
mtspr(MAS2, _mas2);
|
|
mtspr(MAS3, _mas3);
|
|
#ifdef CONFIG_ENABLE_36BIT_PHYS
|
|
mtspr(MAS7, _mas7);
|
|
#endif
|
|
asm volatile("isync;msync;tlbwe;isync");
|
|
}
|
|
|
|
void invalidate_tlb(u8 tlb)
|
|
{
|
|
if (tlb == 0)
|
|
mtspr(MMUCSR0, 0x4);
|
|
if (tlb == 1)
|
|
mtspr(MMUCSR0, 0x2);
|
|
}
|
|
|
|
void init_tlbs(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_tlb_entries; i++) {
|
|
set_tlb(tlb_table[i].tlb, tlb_table[i].epn, tlb_table[i].rpn,
|
|
tlb_table[i].perms, tlb_table[i].wimge,
|
|
tlb_table[i].ts, tlb_table[i].esel, tlb_table[i].tsize,
|
|
tlb_table[i].iprot);
|
|
}
|
|
|
|
return ;
|
|
}
|