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 <hwconfig.h> 28 #include <i2c.h> 29 #include <libfdt.h> 30 #include <fdt_support.h> 31 #include <pci.h> 32 #include <mpc83xx.h> 33 #include <netdev.h> 34 #include <asm/io.h> 35 #include <ns16550.h> 36 #include <nand.h> 37 38 DECLARE_GLOBAL_DATA_PTR; 39 40 int board_early_init_f(void) 41 { 42 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; 43 44 if (im->pmc.pmccr1 & PMCCR1_POWER_OFF) 45 gd->flags |= GD_FLG_SILENT; 46 47 return 0; 48 } 49 50 #ifndef CONFIG_NAND_SPL 51 52 static u8 read_board_info(void) 53 { 54 u8 val8; 55 i2c_set_bus_num(0); 56 57 if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0) 58 return val8; 59 else 60 return 0; 61 } 62 63 int checkboard(void) 64 { 65 static const char * const rev_str[] = { 66 "0.0", 67 "0.1", 68 "1.0", 69 "1.1", 70 "<unknown>", 71 }; 72 u8 info; 73 int i; 74 75 info = read_board_info(); 76 i = (!info) ? 4: info & 0x03; 77 78 printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]); 79 80 return 0; 81 } 82 83 static struct pci_region pci_regions[] = { 84 { 85 bus_start: CONFIG_SYS_PCI_MEM_BASE, 86 phys_start: CONFIG_SYS_PCI_MEM_PHYS, 87 size: CONFIG_SYS_PCI_MEM_SIZE, 88 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH 89 }, 90 { 91 bus_start: CONFIG_SYS_PCI_MMIO_BASE, 92 phys_start: CONFIG_SYS_PCI_MMIO_PHYS, 93 size: CONFIG_SYS_PCI_MMIO_SIZE, 94 flags: PCI_REGION_MEM 95 }, 96 { 97 bus_start: CONFIG_SYS_PCI_IO_BASE, 98 phys_start: CONFIG_SYS_PCI_IO_PHYS, 99 size: CONFIG_SYS_PCI_IO_SIZE, 100 flags: PCI_REGION_IO 101 } 102 }; 103 104 static struct pci_region pcie_regions_0[] = { 105 { 106 .bus_start = CONFIG_SYS_PCIE1_MEM_BASE, 107 .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS, 108 .size = CONFIG_SYS_PCIE1_MEM_SIZE, 109 .flags = PCI_REGION_MEM, 110 }, 111 { 112 .bus_start = CONFIG_SYS_PCIE1_IO_BASE, 113 .phys_start = CONFIG_SYS_PCIE1_IO_PHYS, 114 .size = CONFIG_SYS_PCIE1_IO_SIZE, 115 .flags = PCI_REGION_IO, 116 }, 117 }; 118 119 static struct pci_region pcie_regions_1[] = { 120 { 121 .bus_start = CONFIG_SYS_PCIE2_MEM_BASE, 122 .phys_start = CONFIG_SYS_PCIE2_MEM_PHYS, 123 .size = CONFIG_SYS_PCIE2_MEM_SIZE, 124 .flags = PCI_REGION_MEM, 125 }, 126 { 127 .bus_start = CONFIG_SYS_PCIE2_IO_BASE, 128 .phys_start = CONFIG_SYS_PCIE2_IO_PHYS, 129 .size = CONFIG_SYS_PCIE2_IO_SIZE, 130 .flags = PCI_REGION_IO, 131 }, 132 }; 133 134 void pci_init_board(void) 135 { 136 volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; 137 volatile sysconf83xx_t *sysconf = &immr->sysconf; 138 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; 139 volatile law83xx_t *pci_law = immr->sysconf.pcilaw; 140 volatile law83xx_t *pcie_law = sysconf->pcielaw; 141 struct pci_region *reg[] = { pci_regions }; 142 struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, }; 143 int warmboot; 144 145 /* Enable all 3 PCI_CLK_OUTPUTs. */ 146 clk->occr |= 0xe0000000; 147 148 /* 149 * Configure PCI Local Access Windows 150 */ 151 pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR; 152 pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; 153 154 pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR; 155 pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; 156 157 warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM; 158 warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF; 159 160 mpc83xx_pci_init(1, reg, warmboot); 161 162 /* Configure the clock for PCIE controller */ 163 clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM, 164 SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1); 165 166 /* Deassert the resets in the control register */ 167 out_be32(&sysconf->pecr1, 0xE0008000); 168 out_be32(&sysconf->pecr2, 0xE0008000); 169 udelay(2000); 170 171 /* Configure PCI Express Local Access Windows */ 172 out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR); 173 out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB); 174 175 out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR); 176 out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB); 177 178 mpc83xx_pcie_init(2, pcie_reg, warmboot); 179 } 180 181 #if defined(CONFIG_OF_BOARD_SETUP) 182 void fdt_tsec1_fixup(void *fdt, bd_t *bd) 183 { 184 const char disabled[] = "disabled"; 185 const char *path; 186 int ret; 187 188 if (hwconfig_arg_cmp("board_type", "tsec1")) { 189 return; 190 } else if (!hwconfig_arg_cmp("board_type", "ulpi")) { 191 printf("NOTICE: No or unknown board_type hwconfig specified.\n" 192 " Assuming board with TSEC1.\n"); 193 return; 194 } 195 196 ret = fdt_path_offset(fdt, "/aliases"); 197 if (ret < 0) { 198 printf("WARNING: can't find /aliases node\n"); 199 return; 200 } 201 202 path = fdt_getprop(fdt, ret, "ethernet0", NULL); 203 if (!path) { 204 printf("WARNING: can't find ethernet0 alias\n"); 205 return; 206 } 207 208 do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1); 209 } 210 211 void ft_board_setup(void *blob, bd_t *bd) 212 { 213 ft_cpu_setup(blob, bd); 214 #ifdef CONFIG_PCI 215 ft_pci_setup(blob, bd); 216 #endif 217 fdt_fixup_dr_usb(blob, bd); 218 fdt_tsec1_fixup(blob, bd); 219 } 220 #endif 221 222 int board_eth_init(bd_t *bis) 223 { 224 cpu_eth_init(bis); /* Initialize TSECs first */ 225 return pci_eth_init(bis); 226 } 227 228 #else /* CONFIG_NAND_SPL */ 229 230 int checkboard(void) 231 { 232 puts("Board: Freescale MPC8315ERDB\n"); 233 return 0; 234 } 235 236 void board_init_f(ulong bootflag) 237 { 238 board_early_init_f(); 239 NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), 240 CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE); 241 puts("NAND boot... "); 242 init_timebase(); 243 initdram(0); 244 relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd, 245 CONFIG_SYS_NAND_U_BOOT_RELOC); 246 } 247 248 void board_init_r(gd_t *gd, ulong dest_addr) 249 { 250 nand_boot(); 251 } 252 253 void putc(char c) 254 { 255 if (gd->flags & GD_FLG_SILENT) 256 return; 257 258 if (c == '\n') 259 NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r'); 260 261 NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c); 262 } 263 264 #endif /* CONFIG_NAND_SPL */ 265