1 /* 2 * Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com> 3 * 4 * Copyright 2007 Embedded Specialties, Inc. 5 * 6 * Copyright 2004, 2007 Freescale Semiconductor. 7 * 8 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com> 9 * 10 * See file CREDITS for list of people who contributed to this 11 * project. 12 * 13 * This program is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU General Public License as 15 * published by the Free Software Foundation; either version 2 of 16 * the License, or (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, write to the Free Software 25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 26 * MA 02111-1307 USA 27 */ 28 29 #include <common.h> 30 #include <pci.h> 31 #include <asm/processor.h> 32 #include <asm/immap_85xx.h> 33 #include <asm/fsl_pci.h> 34 #include <asm/fsl_ddr_sdram.h> 35 #include <asm/fsl_serdes.h> 36 #include <spd_sdram.h> 37 #include <netdev.h> 38 #include <tsec.h> 39 #include <miiphy.h> 40 #include <libfdt.h> 41 #include <fdt_support.h> 42 43 DECLARE_GLOBAL_DATA_PTR; 44 45 void local_bus_init(void); 46 47 int board_early_init_f (void) 48 { 49 return 0; 50 } 51 52 int checkboard (void) 53 { 54 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); 55 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV; 56 57 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n", 58 in_8(rev) >> 4); 59 60 /* 61 * Initialize local bus. 62 */ 63 local_bus_init (); 64 65 out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */ 66 out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */ 67 return 0; 68 } 69 70 /* 71 * Initialize Local Bus 72 */ 73 void 74 local_bus_init(void) 75 { 76 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 77 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR; 78 79 uint clkdiv; 80 uint lbc_hz; 81 sys_info_t sysinfo; 82 83 get_sys_info(&sysinfo); 84 clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2; 85 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv; 86 87 out_be32(&gur->lbiuiplldcr1, 0x00078080); 88 if (clkdiv == 16) { 89 out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0); 90 } else if (clkdiv == 8) { 91 out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0); 92 } else if (clkdiv == 4) { 93 out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0); 94 } 95 96 setbits_be32(&lbc->lcrr, 0x00030000); 97 98 asm("sync;isync;msync"); 99 100 out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */ 101 out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */ 102 } 103 104 /* 105 * Initialize SDRAM memory on the Local Bus. 106 */ 107 void 108 sdram_init(void) 109 { 110 #if defined(CONFIG_SYS_LBC_SDRAM_SIZE) 111 112 uint idx; 113 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR; 114 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE; 115 uint lsdmr_common; 116 117 puts(" SDRAM: "); 118 119 print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); 120 121 /* 122 * Setup SDRAM Base and Option Registers 123 */ 124 set_lbc_or(3, CONFIG_SYS_OR3_PRELIM); 125 set_lbc_br(3, CONFIG_SYS_BR3_PRELIM); 126 set_lbc_or(4, CONFIG_SYS_OR4_PRELIM); 127 set_lbc_br(4, CONFIG_SYS_BR4_PRELIM); 128 129 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR); 130 asm("msync"); 131 132 out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT); 133 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR); 134 asm("msync"); 135 136 /* 137 * MPC8548 uses "new" 15-16 style addressing. 138 */ 139 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON; 140 lsdmr_common |= LSDMR_BSMA1516; 141 142 /* 143 * Issue PRECHARGE ALL command. 144 */ 145 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_PCHALL); 146 asm("sync;msync"); 147 *sdram_addr = 0xff; 148 ppcDcbf((unsigned long) sdram_addr); 149 udelay(100); 150 151 /* 152 * Issue 8 AUTO REFRESH commands. 153 */ 154 for (idx = 0; idx < 8; idx++) { 155 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_ARFRSH); 156 asm("sync;msync"); 157 *sdram_addr = 0xff; 158 ppcDcbf((unsigned long) sdram_addr); 159 udelay(100); 160 } 161 162 /* 163 * Issue 8 MODE-set command. 164 */ 165 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_MRW); 166 asm("sync;msync"); 167 *sdram_addr = 0xff; 168 ppcDcbf((unsigned long) sdram_addr); 169 udelay(100); 170 171 /* 172 * Issue NORMAL OP command. 173 */ 174 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_NORMAL); 175 asm("sync;msync"); 176 *sdram_addr = 0xff; 177 ppcDcbf((unsigned long) sdram_addr); 178 udelay(200); /* Overkill. Must wait > 200 bus cycles */ 179 180 #endif /* enable SDRAM init */ 181 } 182 183 #if defined(CONFIG_SYS_DRAM_TEST) 184 int 185 testdram(void) 186 { 187 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START; 188 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END; 189 uint *p; 190 191 printf("Testing DRAM from 0x%08x to 0x%08x\n", 192 CONFIG_SYS_MEMTEST_START, 193 CONFIG_SYS_MEMTEST_END); 194 195 printf("DRAM test phase 1:\n"); 196 for (p = pstart; p < pend; p++) 197 *p = 0xaaaaaaaa; 198 199 for (p = pstart; p < pend; p++) { 200 if (*p != 0xaaaaaaaa) { 201 printf ("DRAM test fails at: %08x\n", (uint) p); 202 return 1; 203 } 204 } 205 206 printf("DRAM test phase 2:\n"); 207 for (p = pstart; p < pend; p++) 208 *p = 0x55555555; 209 210 for (p = pstart; p < pend; p++) { 211 if (*p != 0x55555555) { 212 printf ("DRAM test fails at: %08x\n", (uint) p); 213 return 1; 214 } 215 } 216 217 printf("DRAM test passed.\n"); 218 return 0; 219 } 220 #endif 221 222 #if !defined(CONFIG_SPD_EEPROM) 223 #define CONFIG_SYS_DDR_CONTROL 0xc300c000 224 /************************************************************************* 225 * fixed_sdram init -- doesn't use serial presence detect. 226 * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed. 227 ************************************************************************/ 228 phys_size_t fixed_sdram(void) 229 { 230 volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR); 231 232 out_be32(&ddr->cs0_bnds, 0x0000007f); 233 out_be32(&ddr->cs1_bnds, 0x008000ff); 234 out_be32(&ddr->cs2_bnds, 0x00000000); 235 out_be32(&ddr->cs3_bnds, 0x00000000); 236 out_be32(&ddr->cs0_config, 0x80010101); 237 out_be32(&ddr->cs1_config, 0x80010101); 238 out_be32(&ddr->cs2_config, 0x00000000); 239 out_be32(&ddr->cs3_config, 0x00000000); 240 out_be32(&ddr->timing_cfg_3, 0x00000000); 241 out_be32(&ddr->timing_cfg_0, 0x00220802); 242 out_be32(&ddr->timing_cfg_1, 0x38377322); 243 out_be32(&ddr->timing_cfg_2, 0x0fa044C7); 244 out_be32(&ddr->sdram_cfg, 0x4300C000); 245 out_be32(&ddr->sdram_cfg_2, 0x24401000); 246 out_be32(&ddr->sdram_mode, 0x23C00542); 247 out_be32(&ddr->sdram_mode_2, 0x00000000); 248 out_be32(&ddr->sdram_interval, 0x05080100); 249 out_be32(&ddr->sdram_md_cntl, 0x00000000); 250 out_be32(&ddr->sdram_data_init, 0x00000000); 251 out_be32(&ddr->sdram_clk_cntl, 0x03800000); 252 asm("sync;isync;msync"); 253 udelay(500); 254 255 #if defined (CONFIG_DDR_ECC) 256 /* Enable ECC checking */ 257 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000); 258 #else 259 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL); 260 #endif 261 262 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; 263 } 264 #endif 265 266 #ifdef CONFIG_PCI1 267 static struct pci_controller pci1_hose; 268 #endif /* CONFIG_PCI1 */ 269 270 #ifdef CONFIG_PCIE1 271 static struct pci_controller pcie1_hose; 272 #endif /* CONFIG_PCIE1 */ 273 274 275 #ifdef CONFIG_PCI 276 void 277 pci_init_board(void) 278 { 279 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 280 struct fsl_pci_info pci_info[2]; 281 u32 devdisr, pordevsr, porpllsr, io_sel; 282 int first_free_busno = 0; 283 int num = 0; 284 285 #ifdef CONFIG_PCIE1 286 int pcie_configured; 287 #endif 288 289 devdisr = in_be32(&gur->devdisr); 290 pordevsr = in_be32(&gur->pordevsr); 291 porpllsr = in_be32(&gur->porpllsr); 292 io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19; 293 294 debug(" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel); 295 296 #ifdef CONFIG_PCI1 297 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) { 298 uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; 299 uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; 300 uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; 301 uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */ 302 303 printf("PCI: Host, %d bit, %s MHz, %s, %s\n", 304 (pci_32) ? 32 : 64, 305 (pci_speed == 33000000) ? "33" : 306 (pci_speed == 66000000) ? "66" : "unknown", 307 pci_clk_sel ? "sync" : "async", 308 pci_arb ? "arbiter" : "external-arbiter"); 309 310 SET_STD_PCI_INFO(pci_info[num], 1); 311 first_free_busno = fsl_pci_init_port(&pci_info[num++], 312 &pci1_hose, first_free_busno); 313 } else { 314 printf("PCI: disabled\n"); 315 } 316 317 puts("\n"); 318 #else 319 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */ 320 #endif 321 322 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */ 323 324 #ifdef CONFIG_PCIE1 325 pcie_configured = is_serdes_configured(PCIE1); 326 327 if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){ 328 SET_STD_PCIE_INFO(pci_info[num], 1); 329 printf("PCIE: base address %lx\n", pci_info[num].regs); 330 first_free_busno = fsl_pci_init_port(&pci_info[num++], 331 &pcie1_hose, first_free_busno); 332 } else { 333 printf("PCIE: disabled\n"); 334 } 335 336 puts("\n"); 337 #else 338 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */ 339 #endif 340 } 341 #endif 342 343 int board_eth_init(bd_t *bis) 344 { 345 tsec_standard_init(bis); 346 pci_eth_init(bis); 347 return 0; /* otherwise cpu_eth_init gets run */ 348 } 349 350 int last_stage_init(void) 351 { 352 return 0; 353 } 354 355 #if defined(CONFIG_OF_BOARD_SETUP) 356 void ft_board_setup(void *blob, bd_t *bd) 357 { 358 ft_cpu_setup(blob, bd); 359 360 #ifdef CONFIG_FSL_PCI_INIT 361 FT_FSL_PCI_SETUP; 362 #endif 363 } 364 #endif 365