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/*
* (C) Copyright 2004, Freescale Inc.
* TsiChung Liew, Tsi-Chung.Liew@freescale.com
*
* 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 <mpc8220.h>
#include <asm/processor.h>
#include <asm/mmu.h>
void setupBat (ulong size)
{
ulong batu, batl;
int blocksize = 0;
/* Flash 0 */
#if defined (CONFIG_SYS_AMD_BOOT)
batu = CONFIG_SYS_FLASH0_BASE | BATU_BL_512K | BPP_RW | BPP_RX;
#else
batu = CONFIG_SYS_FLASH0_BASE | BATU_BL_16M | BPP_RW | BPP_RX;
#endif
batl = CONFIG_SYS_FLASH0_BASE | 0x22;
write_bat (IBAT0, batu, batl);
write_bat (DBAT0, batu, batl);
/* Flash 1 */
#if defined (CONFIG_SYS_AMD_BOOT)
batu = CONFIG_SYS_FLASH1_BASE | BATU_BL_16M | BPP_RW | BPP_RX;
#else
batu = CONFIG_SYS_FLASH1_BASE | BATU_BL_512K | BPP_RW | BPP_RX;
#endif
batl = CONFIG_SYS_FLASH1_BASE | 0x22;
write_bat (IBAT1, batu, batl);
write_bat (DBAT1, batu, batl);
/* CPLD */
batu = CONFIG_SYS_CPLD_BASE | BATU_BL_512K | BPP_RW | BPP_RX;
batl = CONFIG_SYS_CPLD_BASE | 0x22;
write_bat (IBAT2, 0, 0);
write_bat (DBAT2, batu, batl);
/* FPGA */
batu = CONFIG_SYS_FPGA_BASE | BATU_BL_512K | BPP_RW | BPP_RX;
batl = CONFIG_SYS_FPGA_BASE | 0x22;
write_bat (IBAT3, 0, 0);
write_bat (DBAT3, batu, batl);
/* MBAR - Data only */
batu = CONFIG_SYS_MBAR | BPP_RW | BPP_RX;
batl = CONFIG_SYS_MBAR | 0x22;
mtspr (IBAT4L, 0);
mtspr (IBAT4U, 0);
mtspr (DBAT4L, batl);
mtspr (DBAT4U, batu);
/* MBAR - SRAM */
batu = CONFIG_SYS_SRAM_BASE | BPP_RW | BPP_RX;
batl = CONFIG_SYS_SRAM_BASE | 0x42;
mtspr (IBAT5L, batl);
mtspr (IBAT5U, batu);
mtspr (DBAT5L, batl);
mtspr (DBAT5U, batu);
if (size <= 0x800000) /* 8MB */
blocksize = BATU_BL_8M;
else if (size <= 0x1000000) /* 16MB */
blocksize = BATU_BL_16M;
else if (size <= 0x2000000) /* 32MB */
blocksize = BATU_BL_32M;
else if (size <= 0x4000000) /* 64MB */
blocksize = BATU_BL_64M;
else if (size <= 0x8000000) /* 128MB */
blocksize = BATU_BL_128M;
else if (size <= 0x10000000) /* 256MB */
blocksize = BATU_BL_256M;
/* Memory */
batu = CONFIG_SYS_SDRAM_BASE | blocksize | BPP_RW | BPP_RX;
batl = CONFIG_SYS_SDRAM_BASE | 0x42;
mtspr (IBAT6L, batl);
mtspr (IBAT6U, batu);
mtspr (DBAT6L, batl);
mtspr (DBAT6U, batu);
/* memory size is less than 256MB */
if (size <= 0x10000000) {
/* Nothing */
batu = 0;
batl = 0;
} else {
size -= 0x10000000;
if (size <= 0x800000) /* 8MB */
blocksize = BATU_BL_8M;
else if (size <= 0x1000000) /* 16MB */
blocksize = BATU_BL_16M;
else if (size <= 0x2000000) /* 32MB */
blocksize = BATU_BL_32M;
else if (size <= 0x4000000) /* 64MB */
blocksize = BATU_BL_64M;
else if (size <= 0x8000000) /* 128MB */
blocksize = BATU_BL_128M;
else if (size <= 0x10000000) /* 256MB */
blocksize = BATU_BL_256M;
batu = (CONFIG_SYS_SDRAM_BASE +
0x10000000) | blocksize | BPP_RW | BPP_RX;
batl = (CONFIG_SYS_SDRAM_BASE + 0x10000000) | 0x42;
}
mtspr (IBAT7L, batl);
mtspr (IBAT7U, batu);
mtspr (DBAT7L, batl);
mtspr (DBAT7U, batu);
}
phys_size_t initdram (int board_type)
{
ulong size;
size = dramSetup ();
/* if iCache ad dCache is defined */
#if defined(CONFIG_CMD_CACHE)
/* setupBat(size);*/
#endif
return size;
}
int checkboard (void)
{
puts ("Board: Alaska MPC8220 Evaluation Board\n");
return 0;
}
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