xref: /openbmc/u-boot/board/sbc8548/law.c (revision d984fed0)
1 /*
2  * Copyright 2008 Freescale Semiconductor, Inc.
3  *
4  * (C) Copyright 2000
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License as
12  * published by the Free Software Foundation; either version 2 of
13  * the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23  * MA 02111-1307 USA
24  */
25 
26 #include <common.h>
27 #include <asm/fsl_law.h>
28 #include <asm/mmu.h>
29 
30 /*
31  * LAW(Local Access Window) configuration:
32  *
33  * 0x0000_0000	0x0fff_ffff	DDR			256M
34  * 0x8000_0000	0x9fff_ffff	PCI1 MEM		512M
35  * 0xa000_0000	0xbfff_ffff	PCIe MEM		512M
36  * 0xe000_0000	0xe000_ffff	CCSR			1M
37  * 0xe200_0000	0xe27f_ffff	PCI1 IO			8M
38  * 0xe280_0000	0xe2ff_ffff	PCIe IO			8M
39  * 0xf000_0000	0xf7ff_ffff	SDRAM			128M
40  * 0xf8b0_0000	0xf80f_ffff	EEPROM			1M
41  * 0xfb80_0000	0xff7f_ffff	FLASH (2nd bank)	64M
42  * 0xff80_0000	0xffff_ffff	FLASH (boot bank)	8M
43  *
44  * Notes:
45  *	CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
46  *	If flash is 8M at default position (last 8M), no LAW needed.
47  */
48 
49 struct law_entry law_table[] = {
50 #ifndef CONFIG_SPD_EEPROM
51 	SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR),
52 #endif
53 #ifdef CONFIG_SYS_PCI1_MEM_PHYS
54 	SET_LAW(CONFIG_SYS_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI),
55 	SET_LAW(CONFIG_SYS_PCI1_IO_PHYS, LAW_SIZE_8M, LAW_TRGT_IF_PCI),
56 #endif
57 #ifdef CONFIG_SYS_PCIE1_MEM_PHYS
58 	SET_LAW(CONFIG_SYS_PCIE1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCIE_1),
59 	SET_LAW(CONFIG_SYS_PCIE1_IO_PHYS, LAW_SIZE_8M, LAW_TRGT_IF_PCIE_1),
60 #endif
61 	/* LBC window - maps 256M 0xf0000000 -> 0xffffffff */
62 	SET_LAW(CONFIG_SYS_LBC_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
63 };
64 
65 int num_law_entries = ARRAY_SIZE(law_table);
66