| /* | |
| * PPC440SP/PPC440SPe system library | |
| * | |
| * Matt Porter <mporter@kernel.crashing.org> | |
| * Copyright 2002-2005 MontaVista Software Inc. | |
| * | |
| * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> | |
| * Copyright (c) 2003, 2004 Zultys Technologies | |
| * | |
| * 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. | |
| * | |
| */ | |
| #include <linux/types.h> | |
| #include <linux/serial.h> | |
| #include <asm/param.h> | |
| #include <asm/ibm44x.h> | |
| #include <asm/mmu.h> | |
| #include <asm/machdep.h> | |
| #include <asm/time.h> | |
| #include <asm/ppc4xx_pic.h> | |
| /* | |
| * Read the 440SP memory controller to get size of system memory. | |
| */ | |
| unsigned long __init ibm440sp_find_end_of_memory(void) | |
| { | |
| u32 i; | |
| u32 mem_size = 0; | |
| /* Read two bank sizes and sum */ | |
| for (i=0; i< MQ0_NUM_BANKS; i++) | |
| switch (mfdcr(DCRN_MQ0_BS0BAS + i) & MQ0_CONFIG_SIZE_MASK) { | |
| case MQ0_CONFIG_SIZE_8M: | |
| mem_size += PPC44x_MEM_SIZE_8M; | |
| break; | |
| case MQ0_CONFIG_SIZE_16M: | |
| mem_size += PPC44x_MEM_SIZE_16M; | |
| break; | |
| case MQ0_CONFIG_SIZE_32M: | |
| mem_size += PPC44x_MEM_SIZE_32M; | |
| break; | |
| case MQ0_CONFIG_SIZE_64M: | |
| mem_size += PPC44x_MEM_SIZE_64M; | |
| break; | |
| case MQ0_CONFIG_SIZE_128M: | |
| mem_size += PPC44x_MEM_SIZE_128M; | |
| break; | |
| case MQ0_CONFIG_SIZE_256M: | |
| mem_size += PPC44x_MEM_SIZE_256M; | |
| break; | |
| case MQ0_CONFIG_SIZE_512M: | |
| mem_size += PPC44x_MEM_SIZE_512M; | |
| break; | |
| case MQ0_CONFIG_SIZE_1G: | |
| mem_size += PPC44x_MEM_SIZE_1G; | |
| break; | |
| case MQ0_CONFIG_SIZE_2G: | |
| mem_size += PPC44x_MEM_SIZE_2G; | |
| break; | |
| default: | |
| break; | |
| } | |
| return mem_size; | |
| } |