mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 08:58:52 +09:00
224 lines
5.0 KiB
C
224 lines
5.0 KiB
C
/*
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* (C) Copyright 2000
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* Rob Taylor, Flying Pig Systems. robt@flyingpig.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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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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int checkboard (void)
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{
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puts ( "Board: OXC8240\n" );
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return 0;
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}
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phys_size_t initdram (int board_type)
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{
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#ifndef CONFIG_SYS_RAMBOOT
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long size;
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long new_bank0_end;
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long mear1;
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long emear1;
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size = get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM_SIZE);
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new_bank0_end = size - 1;
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mear1 = mpc824x_mpc107_getreg(MEAR1);
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emear1 = mpc824x_mpc107_getreg(EMEAR1);
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mear1 = (mear1 & 0xFFFFFF00) |
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((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT);
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emear1 = (emear1 & 0xFFFFFF00) |
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((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT);
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mpc824x_mpc107_setreg(MEAR1, mear1);
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mpc824x_mpc107_setreg(EMEAR1, emear1);
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return (size);
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#else
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/* if U-Boot starts from RAM, then suppose we have 16Mb of RAM */
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return (16 << 20);
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#endif
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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_oxc_config_table[] = {
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{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x14, 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, 0x15, 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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static struct pci_controller hose = {
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#ifndef CONFIG_PCI_PNP
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config_table: pci_oxc_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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int board_early_init_f (void)
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{
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*(volatile unsigned char *)(CONFIG_SYS_CPLD_RESET) = 0x89;
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return 0;
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}
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#ifdef CONFIG_WATCHDOG
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void oxc_wdt_reset(void)
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{
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*(volatile unsigned char *)(CONFIG_SYS_CPLD_WATCHDOG) = 0xff;
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}
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void watchdog_reset(void)
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{
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int re_enable = disable_interrupts();
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oxc_wdt_reset();
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if (re_enable)
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enable_interrupts();
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}
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#endif
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static int oxc_get_expander(unsigned char addr, unsigned char * val)
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{
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return i2c_read(addr, 0, 0, val, 1);
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}
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static int oxc_set_expander(unsigned char addr, unsigned char val)
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{
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return i2c_write(addr, 0, 0, &val, 1);
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}
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static int expander0alive = 0;
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#ifdef CONFIG_SHOW_ACTIVITY
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static int ledtoggle = 0;
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static int ledstatus = 1;
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void oxc_toggle_activeled(void)
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{
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ledtoggle++;
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}
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void board_show_activity (ulong timestamp)
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{
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if ((timestamp % (CONFIG_SYS_HZ / 10)) == 0)
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oxc_toggle_activeled ();
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}
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void show_activity(int arg)
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{
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static unsigned char led = 0;
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unsigned char val;
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if (!expander0alive) return;
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if ((ledtoggle > (2 * arg)) && ledstatus) {
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led ^= 0x80;
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oxc_get_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, &val);
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udelay(200);
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oxc_set_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, (val & 0x7F) | led);
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ledtoggle = 0;
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}
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}
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#endif
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#ifdef CONFIG_SHOW_BOOT_PROGRESS
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void show_boot_progress(int arg)
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{
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unsigned char val;
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if (!expander0alive) return;
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if (arg > 0 && ledstatus) {
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ledstatus = 0;
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oxc_get_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, &val);
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udelay(200);
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oxc_set_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, val | 0x80);
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} else if (arg < 0) {
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oxc_get_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, &val);
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udelay(200);
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oxc_set_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, val & 0x7F);
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ledstatus = 1;
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}
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}
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#endif
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int misc_init_r (void)
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{
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/* check whether the i2c expander #0 is accessible */
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if (!oxc_set_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, 0x7F)) {
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udelay(200);
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expander0alive = 1;
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}
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#ifdef CONFIG_SYS_OXC_GENERATE_IP
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{
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char str[32];
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unsigned long ip = CONFIG_SYS_OXC_IPMASK;
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bd_t *bd = gd->bd;
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if (expander0alive) {
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unsigned char val;
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if (!oxc_get_expander(CONFIG_SYS_I2C_EXPANDER0_ADDR, &val)) {
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ip = (ip & 0xffffff00) | ((val & 0x7c) >> 2);
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}
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}
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if ((ip & 0xff) < 3) {
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/* if fail, set x.x.x.254 */
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ip = (ip & 0xffffff00) | 0xfe;
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}
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bd->bi_ip_addr = ip;
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sprintf(str, "%ld.%ld.%ld.%ld",
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(bd->bi_ip_addr & 0xff000000) >> 24,
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(bd->bi_ip_addr & 0x00ff0000) >> 16,
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(bd->bi_ip_addr & 0x0000ff00) >> 8,
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(bd->bi_ip_addr & 0x000000ff));
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setenv("ipaddr", str);
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printf("ip: %s\n", str);
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}
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#endif
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return (0);
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}
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int board_eth_init(bd_t *bis)
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{
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return pci_eth_init(bis);
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}
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