summaryrefslogtreecommitdiffstats
path: root/board/amcc/ocotea/init.S
blob: 35085f0a06a5594e90332349142f7b9c56b1921d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
/*
 *  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <ppc_asm.tmpl>
#include <config.h>
#include <asm/mmu.h>
#include <asm/ppc4xx.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

	tlbentry(0xf0000000, SZ_256M, 0xf0000000, 1, AC_RWX | SA_IG)

	/*
	 * TLB entries for SDRAM are not needed on this platform.
	 * They are dynamically generated in the SPD DDR(2) detection
	 * routine.
	 */

	tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_256M, 0x40000000, 1, AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_4K, 0x80000000, 0, AC_RWX)
	tlbentry(CONFIG_SYS_ISRAM_BASE + 0x1000, SZ_4K, 0x80001000, 0, AC_RWX)
	tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 2, AC_RW | SA_IG)
	tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x00000000, 3, AC_RW | SA_IG)
	tlbtab_end
OpenPOWER on IntegriCloud