1 /* 2 * Copyright (C) 2007 Freescale Semiconductor, Inc. 3 * 4 * Author: Scott Wood <scottwood@freescale.com> 5 * Dave Liu <daveliu@freescale.com> 6 * 7 * See file CREDITS for list of people who contributed to this 8 * project. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of 13 * the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS for A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23 * MA 02111-1307 USA 24 */ 25 26 #include <common.h> 27 #include <i2c.h> 28 #include <libfdt.h> 29 #include <fdt_support.h> 30 #include <pci.h> 31 #include <mpc83xx.h> 32 #include <netdev.h> 33 34 DECLARE_GLOBAL_DATA_PTR; 35 36 int board_early_init_f(void) 37 { 38 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; 39 40 if (im->pmc.pmccr1 & PMCCR1_POWER_OFF) 41 gd->flags |= GD_FLG_SILENT; 42 43 return 0; 44 } 45 46 static u8 read_board_info(void) 47 { 48 u8 val8; 49 i2c_set_bus_num(0); 50 51 if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0) 52 return val8; 53 else 54 return 0; 55 } 56 57 int checkboard(void) 58 { 59 static const char * const rev_str[] = { 60 "0.0", 61 "0.1", 62 "1.0", 63 "1.1", 64 "<unknown>", 65 }; 66 u8 info; 67 int i; 68 69 info = read_board_info(); 70 i = (!info) ? 4: info & 0x03; 71 72 printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]); 73 74 return 0; 75 } 76 77 static struct pci_region pci_regions[] = { 78 { 79 bus_start: CONFIG_SYS_PCI_MEM_BASE, 80 phys_start: CONFIG_SYS_PCI_MEM_PHYS, 81 size: CONFIG_SYS_PCI_MEM_SIZE, 82 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH 83 }, 84 { 85 bus_start: CONFIG_SYS_PCI_MMIO_BASE, 86 phys_start: CONFIG_SYS_PCI_MMIO_PHYS, 87 size: CONFIG_SYS_PCI_MMIO_SIZE, 88 flags: PCI_REGION_MEM 89 }, 90 { 91 bus_start: CONFIG_SYS_PCI_IO_BASE, 92 phys_start: CONFIG_SYS_PCI_IO_PHYS, 93 size: CONFIG_SYS_PCI_IO_SIZE, 94 flags: PCI_REGION_IO 95 } 96 }; 97 98 void pci_init_board(void) 99 { 100 volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; 101 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; 102 volatile law83xx_t *pci_law = immr->sysconf.pcilaw; 103 struct pci_region *reg[] = { pci_regions }; 104 int warmboot; 105 106 /* Enable all 3 PCI_CLK_OUTPUTs. */ 107 clk->occr |= 0xe0000000; 108 109 /* 110 * Configure PCI Local Access Windows 111 */ 112 pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR; 113 pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; 114 115 pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR; 116 pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; 117 118 warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM; 119 warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF; 120 121 mpc83xx_pci_init(1, reg, warmboot); 122 } 123 124 #if defined(CONFIG_OF_BOARD_SETUP) 125 void fdt_tsec1_fixup(void *fdt, bd_t *bd) 126 { 127 char *mpc8315erdb = getenv("mpc8315erdb"); 128 const char disabled[] = "disabled"; 129 const char *path; 130 int ret; 131 132 if (!mpc8315erdb) 133 return; 134 135 if (!strcmp(mpc8315erdb, "tsec1")) { 136 return; 137 } else if (strcmp(mpc8315erdb, "ulpi")) { 138 printf("WARNING: wrong `mpc8315erdb' environment " 139 "variable specified: `%s'. Should be `ulpi' " 140 "or `tsec1'.\n", mpc8315erdb); 141 return; 142 } 143 144 ret = fdt_path_offset(fdt, "/aliases"); 145 if (ret < 0) { 146 printf("WARNING: can't find /aliases node\n"); 147 return; 148 } 149 150 path = fdt_getprop(fdt, ret, "ethernet0", NULL); 151 if (!path) { 152 printf("WARNING: can't find ethernet0 alias\n"); 153 return; 154 } 155 156 do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1); 157 } 158 159 void ft_board_setup(void *blob, bd_t *bd) 160 { 161 ft_cpu_setup(blob, bd); 162 #ifdef CONFIG_PCI 163 ft_pci_setup(blob, bd); 164 #endif 165 fdt_fixup_dr_usb(blob, bd); 166 fdt_tsec1_fixup(blob, bd); 167 } 168 #endif 169 170 int board_eth_init(bd_t *bis) 171 { 172 cpu_eth_init(bis); /* Initialize TSECs first */ 173 return pci_eth_init(bis); 174 } 175