diff options
Diffstat (limited to 'board/a3000/a3000.c')
| -rw-r--r-- | board/a3000/a3000.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/board/a3000/a3000.c b/board/a3000/a3000.c new file mode 100644 index 000000000..e43465da3 --- /dev/null +++ b/board/a3000/a3000.c @@ -0,0 +1,144 @@ +/* + * (C) Copyright 2001 + * Rob Taylor, Flying Pig Systems. robt@flyingpig.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 <mpc824x.h> +#include <pci.h> + +int checkboard (void) +{ + ulong busfreq = get_bus_freq(0); + char buf[32]; + + printf("Board: A3000 Local Bus at %s MHz\n", strmhz(buf, busfreq)); + return 0; + +} + +long int initdram (int board_type) +{ + int i, cnt; + volatile uchar * base= CFG_SDRAM_BASE; + volatile ulong * addr; + ulong save[32]; + ulong val, ret = 0; + + for (i=0, cnt=(CFG_MAX_RAM_SIZE / sizeof(long)) >> 1; cnt > 0; cnt >>= 1) { + addr = (volatile ulong *)base + cnt; + save[i++] = *addr; + *addr = ~cnt; + } + + addr = (volatile ulong *)base; + save[i] = *addr; + *addr = 0; + + if (*addr != 0) { + *addr = save[i]; + goto Done; + } + + for (cnt = 1; cnt <= CFG_MAX_RAM_SIZE / sizeof(long); cnt <<= 1) { + addr = (volatile ulong *)base + cnt; + val = *addr; + *addr = save[--i]; + if (val != ~cnt) { + ulong new_bank0_end = cnt * sizeof(long) - 1; + ulong mear1 = mpc824x_mpc107_getreg(MEAR1); + ulong emear1 = mpc824x_mpc107_getreg(EMEAR1); + mear1 = (mear1 & 0xFFFFFF00) | + ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT); + emear1 = (emear1 & 0xFFFFFF00) | + ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT); + mpc824x_mpc107_setreg(MEAR1, mear1); + mpc824x_mpc107_setreg(EMEAR1, emear1); + + ret = cnt * sizeof(long); + goto Done; + } + } + + ret = CFG_MAX_RAM_SIZE; +Done: + return ret; +} + +/* + * Initialize PCI Devices + */ +#if 1 +#ifndef CONFIG_PCI_PNP +static struct pci_config_table pci_a3000_config_table[] = { + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + 0x0, 0x0, 0x0, /* unknown eth0 divice */ + pci_cfgfunc_config_device, { PCI_ENET0_IOADDR, + PCI_ENET0_MEMADDR, + PCI_COMMAND_IO | + PCI_COMMAND_MEMORY | + PCI_COMMAND_MASTER }}, + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + 0x0, 0x0, 0x0, /* unknown eth1 device */ + pci_cfgfunc_config_device, { PCI_ENET1_IOADDR, + PCI_ENET1_MEMADDR, + PCI_COMMAND_IO | + PCI_COMMAND_MEMORY | + PCI_COMMAND_MASTER }}, + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + 0x0, 0x0, 0x0, /* unknown eth1 device */ + pci_cfgfunc_config_device, { PCI_ENET2_IOADDR, + PCI_ENET2_MEMADDR, + PCI_COMMAND_IO | + PCI_COMMAND_MEMORY | + PCI_COMMAND_MASTER }}, + { } +}; +#endif + +#else + +#ifndef CONFIG_PCI_PNP +static struct pci_config_table pci_a3000_config_table[] = { + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID, + pci_cfgfunc_config_device, { PCI_ENET0_IOADDR, + PCI_ENET0_MEMADDR, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }}, + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x10, PCI_ANY_ID, + pci_cfgfunc_config_device, { PCI_ENET1_IOADDR, + PCI_ENET1_MEMADDR, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }}, + { } +}; +#endif + +#endif + +struct pci_controller hose = { +#ifndef CONFIG_PCI_PNP + config_table: pci_a3000_config_table, +#endif +}; + +void pci_init_board(void) +{ + pci_mpc824x_init(&hose); +} |