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 33 DECLARE_GLOBAL_DATA_PTR; 34 35 int board_early_init_f(void) 36 { 37 volatile immap_t *im = (immap_t *)CFG_IMMR; 38 39 if (im->pmc.pmccr1 & PMCCR1_POWER_OFF) 40 gd->flags |= GD_FLG_SILENT; 41 42 return 0; 43 } 44 45 static u8 read_board_info(void) 46 { 47 u8 val8; 48 i2c_set_bus_num(0); 49 50 if (i2c_read(CFG_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0) 51 return val8; 52 else 53 return 0; 54 } 55 56 int checkboard(void) 57 { 58 static const char * const rev_str[] = { 59 "0.0", 60 "0.1", 61 "1.0", 62 "1.1", 63 "<unknown>", 64 }; 65 u8 info; 66 int i; 67 68 info = read_board_info(); 69 i = (!info) ? 4: info & 0x03; 70 71 printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]); 72 73 return 0; 74 } 75 76 static struct pci_region pci_regions[] = { 77 { 78 bus_start: CFG_PCI_MEM_BASE, 79 phys_start: CFG_PCI_MEM_PHYS, 80 size: CFG_PCI_MEM_SIZE, 81 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH 82 }, 83 { 84 bus_start: CFG_PCI_MMIO_BASE, 85 phys_start: CFG_PCI_MMIO_PHYS, 86 size: CFG_PCI_MMIO_SIZE, 87 flags: PCI_REGION_MEM 88 }, 89 { 90 bus_start: CFG_PCI_IO_BASE, 91 phys_start: CFG_PCI_IO_PHYS, 92 size: CFG_PCI_IO_SIZE, 93 flags: PCI_REGION_IO 94 } 95 }; 96 97 void pci_init_board(void) 98 { 99 volatile immap_t *immr = (volatile immap_t *)CFG_IMMR; 100 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; 101 volatile law83xx_t *pci_law = immr->sysconf.pcilaw; 102 struct pci_region *reg[] = { pci_regions }; 103 int warmboot; 104 105 /* Enable all 3 PCI_CLK_OUTPUTs. */ 106 clk->occr |= 0xe0000000; 107 108 /* 109 * Configure PCI Local Access Windows 110 */ 111 pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR; 112 pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; 113 114 pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR; 115 pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; 116 117 warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM; 118 warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF; 119 120 mpc83xx_pci_init(1, reg, warmboot); 121 } 122 123 #if defined(CONFIG_OF_BOARD_SETUP) 124 void fdt_tsec1_fixup(void *fdt, bd_t *bd) 125 { 126 char *mpc8315erdb = getenv("mpc8315erdb"); 127 const char disabled[] = "disabled"; 128 const char *path; 129 int ret; 130 131 if (!mpc8315erdb) 132 return; 133 134 if (!strcmp(mpc8315erdb, "tsec1")) { 135 return; 136 } else if (strcmp(mpc8315erdb, "ulpi")) { 137 printf("WARNING: wrong `mpc8315erdb' environment " 138 "variable specified: `%s'. Should be `ulpi' " 139 "or `tsec1'.\n", mpc8315erdb); 140 return; 141 } 142 143 ret = fdt_path_offset(fdt, "/aliases"); 144 if (ret < 0) { 145 printf("WARNING: can't find /aliases node\n"); 146 return; 147 } 148 149 path = fdt_getprop(fdt, ret, "ethernet0", NULL); 150 if (!path) { 151 printf("WARNING: can't find ethernet0 alias\n"); 152 return; 153 } 154 155 do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1); 156 } 157 158 void ft_board_setup(void *blob, bd_t *bd) 159 { 160 ft_cpu_setup(blob, bd); 161 #ifdef CONFIG_PCI 162 ft_pci_setup(blob, bd); 163 #endif 164 fdt_fixup_dr_usb(blob, bd); 165 fdt_tsec1_fixup(blob, bd); 166 } 167 #endif 168