mirror of
https://github.com/AsahiLinux/u-boot
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179 lines
4.5 KiB
C
179 lines
4.5 KiB
C
/*
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* (C) Copyright 2000
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* Sangmoon Kim, Etin Systems. dogoil@etinsys.com.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <mpc824x.h>
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#include <pci.h>
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#include <i2c.h>
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DECLARE_GLOBAL_DATA_PTR;
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int checkboard (void)
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{
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/*TODO: Check processor type */
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puts ( "Board: Debris "
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#ifdef CONFIG_MPC8240
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"8240"
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#endif
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#ifdef CONFIG_MPC8245
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"8245"
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#endif
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" ##Test not implemented yet##\n");
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return 0;
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}
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#if 0 /* NOT USED */
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int checkflash (void)
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{
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/* TODO: XXX XXX XXX */
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printf ("## Test not implemented yet ##\n");
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return (0);
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}
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#endif
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long int initdram (int board_type)
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{
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int m, row, col, bank, i;
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unsigned long start, end;
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uint32_t mccr1;
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uint32_t mear1 = 0, emear1 = 0, msar1 = 0, emsar1 = 0;
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uint32_t mear2 = 0, emear2 = 0, msar2 = 0, emsar2 = 0;
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uint8_t mber = 0;
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i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
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if (i2c_reg_read (0x50, 2) != 0x04) return 0; /* Memory type */
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m = i2c_reg_read (0x50, 5); /* # of physical banks */
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row = i2c_reg_read (0x50, 3); /* # of rows */
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col = i2c_reg_read (0x50, 4); /* # of columns */
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bank = i2c_reg_read (0x50, 17); /* # of logical banks */
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CONFIG_READ_WORD(MCCR1, mccr1);
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mccr1 &= 0xffff0000;
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start = CFG_SDRAM_BASE;
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end = start + (1 << (col + row + 3) ) * bank - 1;
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for (i = 0; i < m; i++) {
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mccr1 |= ((row == 13)? 2 : (bank == 4)? 0 : 3) << i * 2;
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if (i < 4) {
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msar1 |= ((start >> 20) & 0xff) << i * 8;
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emsar1 |= ((start >> 28) & 0xff) << i * 8;
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mear1 |= ((end >> 20) & 0xff) << i * 8;
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emear1 |= ((end >> 28) & 0xff) << i * 8;
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} else {
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msar2 |= ((start >> 20) & 0xff) << (i-4) * 8;
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emsar2 |= ((start >> 28) & 0xff) << (i-4) * 8;
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mear2 |= ((end >> 20) & 0xff) << (i-4) * 8;
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emear2 |= ((end >> 28) & 0xff) << (i-4) * 8;
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}
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mber |= 1 << i;
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start += (1 << (col + row + 3) ) * bank;
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end += (1 << (col + row + 3) ) * bank;
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}
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for (; i < 8; i++) {
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if (i < 4) {
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msar1 |= 0xff << i * 8;
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emsar1 |= 0x30 << i * 8;
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mear1 |= 0xff << i * 8;
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emear1 |= 0x30 << i * 8;
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} else {
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msar2 |= 0xff << (i-4) * 8;
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emsar2 |= 0x30 << (i-4) * 8;
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mear2 |= 0xff << (i-4) * 8;
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emear2 |= 0x30 << (i-4) * 8;
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}
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}
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CONFIG_WRITE_WORD(MCCR1, mccr1);
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CONFIG_WRITE_WORD(MSAR1, msar1);
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CONFIG_WRITE_WORD(EMSAR1, emsar1);
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CONFIG_WRITE_WORD(MEAR1, mear1);
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CONFIG_WRITE_WORD(EMEAR1, emear1);
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CONFIG_WRITE_WORD(MSAR2, msar2);
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CONFIG_WRITE_WORD(EMSAR2, emsar2);
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CONFIG_WRITE_WORD(MEAR2, mear2);
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CONFIG_WRITE_WORD(EMEAR2, emear2);
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CONFIG_WRITE_BYTE(MBER, mber);
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return (1 << (col + row + 3) ) * bank * m;
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}
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/*
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* Initialize PCI Devices, report devices found.
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*/
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#ifndef CONFIG_PCI_PNP
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static struct pci_config_table pci_debris_config_table[] = {
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{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
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pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
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PCI_ENET0_MEMADDR,
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PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
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{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x10, PCI_ANY_ID,
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pci_cfgfunc_config_device, { PCI_ENET1_IOADDR,
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PCI_ENET1_MEMADDR,
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PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
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{ }
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};
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#endif
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struct pci_controller hose = {
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#ifndef CONFIG_PCI_PNP
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config_table: pci_debris_config_table,
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#endif
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};
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void pci_init_board(void)
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{
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pci_mpc824x_init(&hose);
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}
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void *nvram_read(void *dest, const long src, size_t count)
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{
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volatile uchar *d = (volatile uchar*) dest;
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volatile uchar *s = (volatile uchar*) src;
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while(count--) {
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*d++ = *s++;
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asm volatile("sync");
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}
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return dest;
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}
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void nvram_write(long dest, const void *src, size_t count)
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{
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volatile uchar *d = (volatile uchar*)dest;
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volatile uchar *s = (volatile uchar*)src;
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while(count--) {
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*d++ = *s++;
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asm volatile("sync");
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}
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}
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int misc_init_r(void)
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{
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/* Write ethernet addr in NVRAM for VxWorks */
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nvram_write(CFG_ENV_ADDR + CFG_NVRAM_VXWORKS_OFFS,
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(char*)&gd->bd->bi_enetaddr[0], 6);
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return 0;
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}
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