/* * (C) Copyright 2000 * 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> #include <i2c.h> DECLARE_GLOBAL_DATA_PTR; int checkboard (void) { puts ( "Board: OXC8240\n" ); return 0; } long int initdram (int board_type) { #ifndef CFG_RAMBOOT long size; long new_bank0_end; long mear1; long emear1; size = get_ram_size(CFG_SDRAM_BASE, CFG_MAX_RAM_SIZE); new_bank0_end = size - 1; mear1 = mpc824x_mpc107_getreg(MEAR1); 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); return (size); #else /* if U-Boot starts from RAM, then suppose we have 16Mb of RAM */ return (16 << 20); #endif } /* * Initialize PCI Devices, report devices found. */ #ifndef CONFIG_PCI_PNP static struct pci_config_table pci_oxc_config_table[] = { { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x14, 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, 0x15, PCI_ANY_ID, pci_cfgfunc_config_device, { PCI_ENET1_IOADDR, PCI_ENET1_MEMADDR, PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }}, { } }; #endif static struct pci_controller hose = { #ifndef CONFIG_PCI_PNP config_table: pci_oxc_config_table, #endif }; void pci_init_board (void) { pci_mpc824x_init(&hose); } int board_early_init_f (void) { *(volatile unsigned char *)(CFG_CPLD_RESET) = 0x89; return 0; } #ifdef CONFIG_WATCHDOG void oxc_wdt_reset(void) { *(volatile unsigned char *)(CFG_CPLD_WATCHDOG) = 0xff; } void watchdog_reset(void) { int re_enable = disable_interrupts(); oxc_wdt_reset(); if (re_enable) enable_interrupts(); } #endif static int oxc_get_expander(unsigned char addr, unsigned char * val) { return i2c_read(addr, 0, 0, val, 1); } static int oxc_set_expander(unsigned char addr, unsigned char val) { return i2c_write(addr, 0, 0, &val, 1); } static int expander0alive = 0; #ifdef CONFIG_SHOW_ACTIVITY static int ledtoggle = 0; static int ledstatus = 1; void oxc_toggle_activeled(void) { ledtoggle++; } void board_show_activity (ulong timestamp) { if ((timestamp % (CFG_HZ / 10)) == 0) oxc_toggle_activeled (); } void show_activity(int arg) { static unsigned char led = 0; unsigned char val; if (!expander0alive) return; if ((ledtoggle > (2 * arg)) && ledstatus) { led ^= 0x80; oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val); udelay(200); oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, (val & 0x7F) | led); ledtoggle = 0; } } #endif #ifdef CONFIG_SHOW_BOOT_PROGRESS void show_boot_progress(int arg) { unsigned char val; if (!expander0alive) return; if (arg > 0 && ledstatus) { ledstatus = 0; oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val); udelay(200); oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, val | 0x80); } else if (arg < 0) { oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val); udelay(200); oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, val & 0x7F); ledstatus = 1; } } #endif int misc_init_r (void) { /* check whether the i2c expander #0 is accessible */ if (!oxc_set_expander(CFG_I2C_EXPANDER0_ADDR, 0x7F)) { udelay(200); expander0alive = 1; } #ifdef CFG_OXC_GENERATE_IP { char str[32]; unsigned long ip = CFG_OXC_IPMASK; bd_t *bd = gd->bd; if (expander0alive) { unsigned char val; if (!oxc_get_expander(CFG_I2C_EXPANDER0_ADDR, &val)) { ip = (ip & 0xffffff00) | ((val & 0x7c) >> 2); } } if ((ip & 0xff) < 3) { /* if fail, set x.x.x.254 */ ip = (ip & 0xffffff00) | 0xfe; } bd->bi_ip_addr = ip; sprintf(str, "%ld.%ld.%ld.%ld", (bd->bi_ip_addr & 0xff000000) >> 24, (bd->bi_ip_addr & 0x00ff0000) >> 16, (bd->bi_ip_addr & 0x0000ff00) >> 8, (bd->bi_ip_addr & 0x000000ff)); setenv("ipaddr", str); printf("ip: %s\n", str); } #endif return (0); }