xref: /openbmc/u-boot/board/socrates/law.c (revision efc05ae1)
1 /*
2  * (C) Copyright 2008
3  * Sergei Poselenov, Emcraft Systems, sposelenov@emcraft.com.
4  *
5  * Copyright 2008 Freescale Semiconductor, Inc.
6  *
7  * (C) Copyright 2000
8  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9  *
10  * See file CREDITS for list of people who contributed to this
11  * project.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License as
15  * published by the Free Software Foundation; either version 2 of
16  * the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software
25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26  * MA 02111-1307 USA
27  */
28 
29 #include <common.h>
30 #include <asm/fsl_law.h>
31 #include <asm/mmu.h>
32 
33 /*
34  * LAW(Local Access Window) configuration:
35  *
36  * 0x0000_0000	   0x2fff_ffff	   DDR			   512M
37  * 0x8000_0000	   0x9fff_ffff	   PCI1 MEM		   512M
38  * 0xc000_0000	   0xc00f_ffff	   FPGA			   1M
39  * 0xc800_0000	   0xcbff_ffff	   LIME			   64M
40  * 0xe000_0000	   0xe00f_ffff	   CCSR			   1M (mapped by CCSRBAR)
41  * 0xe200_0000	   0xe2ff_ffff	   PCI1 IO		   16M
42  * 0xfc00_0000	   0xffff_ffff	   FLASH		   64M
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 	SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_DDR),
51 	SET_LAW(CONFIG_SYS_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI),
52 	SET_LAW(CONFIG_SYS_LBC_FLASH_BASE, LAW_SIZE_64M, LAW_TRGT_IF_LBC),
53 	SET_LAW(CONFIG_SYS_PCI1_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI),
54 #if defined(CONFIG_SYS_FPGA_BASE)
55 	SET_LAW(CONFIG_SYS_FPGA_BASE, LAW_SIZE_1M, LAW_TRGT_IF_LBC),
56 #endif
57 	SET_LAW(CONFIG_SYS_LIME_BASE, LAW_SIZE_64M, LAW_TRGT_IF_LBC),
58 };
59 
60 int num_law_entries = ARRAY_SIZE(law_table);
61