1 /* 2 * Copyright 2006, 2007 Freescale Semiconductor. 3 * 4 * See file CREDITS for list of people who contributed to this 5 * project. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation; either version 2 of 10 * the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 20 * MA 02111-1307 USA 21 */ 22 23 #include <common.h> 24 #include <pci.h> 25 #include <asm/processor.h> 26 #include <asm/immap_86xx.h> 27 #include <asm/fsl_pci.h> 28 #include <asm/fsl_ddr_sdram.h> 29 #include <asm/io.h> 30 #include <libfdt.h> 31 #include <fdt_support.h> 32 #include <netdev.h> 33 34 #include "../common/pixis.h" 35 36 phys_size_t fixed_sdram(void); 37 38 int board_early_init_f(void) 39 { 40 return 0; 41 } 42 43 int checkboard(void) 44 { 45 printf ("Board: MPC8641HPCN, System ID: 0x%02x, " 46 "System Version: 0x%02x, FPGA Version: 0x%02x\n", 47 in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER), 48 in8(PIXIS_BASE + PIXIS_PVER)); 49 #ifdef CONFIG_PHYS_64BIT 50 printf (" 36-bit physical address map\n"); 51 #endif 52 return 0; 53 } 54 55 56 phys_size_t 57 initdram(int board_type) 58 { 59 phys_size_t dram_size = 0; 60 61 #if defined(CONFIG_SPD_EEPROM) 62 dram_size = fsl_ddr_sdram(); 63 #else 64 dram_size = fixed_sdram(); 65 #endif 66 67 #if defined(CONFIG_SYS_RAMBOOT) 68 puts(" DDR: "); 69 return dram_size; 70 #endif 71 72 puts(" DDR: "); 73 return dram_size; 74 } 75 76 77 #if !defined(CONFIG_SPD_EEPROM) 78 /* 79 * Fixed sdram init -- doesn't use serial presence detect. 80 */ 81 phys_size_t 82 fixed_sdram(void) 83 { 84 #if !defined(CONFIG_SYS_RAMBOOT) 85 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; 86 volatile ccsr_ddr_t *ddr = &immap->im_ddr1; 87 88 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS; 89 ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG; 90 ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3; 91 ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0; 92 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1; 93 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2; 94 ddr->sdram_mode_1 = CONFIG_SYS_DDR_MODE_1; 95 ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2; 96 ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL; 97 ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT; 98 ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL; 99 ddr->sdram_ocd_cntl = CONFIG_SYS_DDR_OCD_CTRL; 100 ddr->sdram_ocd_status = CONFIG_SYS_DDR_OCD_STATUS; 101 102 #if defined (CONFIG_DDR_ECC) 103 ddr->err_disable = 0x0000008D; 104 ddr->err_sbe = 0x00ff0000; 105 #endif 106 asm("sync;isync"); 107 108 udelay(500); 109 110 #if defined (CONFIG_DDR_ECC) 111 /* Enable ECC checking */ 112 ddr->sdram_cfg_1 = (CONFIG_SYS_DDR_CONTROL | 0x20000000); 113 #else 114 ddr->sdram_cfg_1 = CONFIG_SYS_DDR_CONTROL; 115 ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL2; 116 #endif 117 asm("sync; isync"); 118 119 udelay(500); 120 #endif 121 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; 122 } 123 #endif /* !defined(CONFIG_SPD_EEPROM) */ 124 125 126 #if defined(CONFIG_PCI) 127 static struct pci_controller pci1_hose; 128 #endif /* CONFIG_PCI */ 129 130 #ifdef CONFIG_PCI2 131 static struct pci_controller pci2_hose; 132 #endif /* CONFIG_PCI2 */ 133 134 int first_free_busno = 0; 135 136 void pci_init_board(void) 137 { 138 #ifdef CONFIG_PCI1 139 { 140 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR; 141 struct pci_controller *hose = &pci1_hose; 142 struct pci_region *r = hose->regions; 143 volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR; 144 volatile ccsr_gur_t *gur = &immap->im_gur; 145 uint devdisr = gur->devdisr; 146 uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL) 147 >> MPC8641_PORDEVSR_IO_SEL_SHIFT; 148 149 #ifdef DEBUG 150 uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA) 151 >> MPC8641_PORBMSR_HA_SHIFT; 152 uint pex1_agent = (host1_agent == 0) || (host1_agent == 1); 153 #endif 154 if ((io_sel == 2 || io_sel == 3 || io_sel == 5 155 || io_sel == 6 || io_sel == 7 || io_sel == 0xF) 156 && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) { 157 debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host"); 158 debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det); 159 if (pci->pme_msg_det) { 160 pci->pme_msg_det = 0xffffffff; 161 debug(" with errors. Clearing. Now 0x%08x", 162 pci->pme_msg_det); 163 } 164 debug("\n"); 165 166 /* outbound memory */ 167 pci_set_region(r++, 168 CONFIG_SYS_PCI1_MEM_BUS, 169 CONFIG_SYS_PCI1_MEM_PHYS, 170 CONFIG_SYS_PCI1_MEM_SIZE, 171 PCI_REGION_MEM); 172 173 /* outbound io */ 174 pci_set_region(r++, 175 CONFIG_SYS_PCI1_IO_BUS, 176 CONFIG_SYS_PCI1_IO_PHYS, 177 CONFIG_SYS_PCI1_IO_SIZE, 178 PCI_REGION_IO); 179 180 /* inbound */ 181 r += fsl_pci_setup_inbound_windows(r); 182 183 hose->region_count = r - hose->regions; 184 185 hose->first_busno=first_free_busno; 186 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); 187 188 fsl_pci_init(hose); 189 190 first_free_busno=hose->last_busno+1; 191 printf (" PCI-EXPRESS 1 on bus %02x - %02x\n", 192 hose->first_busno,hose->last_busno); 193 194 /* 195 * Activate ULI1575 legacy chip by performing a fake 196 * memory access. Needed to make ULI RTC work. 197 */ 198 in_be32((unsigned *) ((char *)(CONFIG_SYS_PCI1_MEM_VIRT 199 + CONFIG_SYS_PCI1_MEM_SIZE - 0x1000000))); 200 201 } else { 202 puts("PCI-EXPRESS 1: Disabled\n"); 203 } 204 } 205 #else 206 puts("PCI-EXPRESS1: Disabled\n"); 207 #endif /* CONFIG_PCI1 */ 208 209 #ifdef CONFIG_PCI2 210 { 211 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI2_ADDR; 212 struct pci_controller *hose = &pci2_hose; 213 struct pci_region *r = hose->regions; 214 215 /* outbound memory */ 216 pci_set_region(r++, 217 CONFIG_SYS_PCI2_MEM_BUS, 218 CONFIG_SYS_PCI2_MEM_PHYS, 219 CONFIG_SYS_PCI2_MEM_SIZE, 220 PCI_REGION_MEM); 221 222 /* outbound io */ 223 pci_set_region(r++, 224 CONFIG_SYS_PCI2_IO_BUS, 225 CONFIG_SYS_PCI2_IO_PHYS, 226 CONFIG_SYS_PCI2_IO_SIZE, 227 PCI_REGION_IO); 228 229 /* inbound */ 230 r += fsl_pci_setup_inbound_windows(r); 231 232 hose->region_count = r - hose->regions; 233 234 hose->first_busno=first_free_busno; 235 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); 236 237 fsl_pci_init(hose); 238 239 first_free_busno=hose->last_busno+1; 240 printf (" PCI-EXPRESS 2 on bus %02x - %02x\n", 241 hose->first_busno,hose->last_busno); 242 } 243 #else 244 puts("PCI-EXPRESS 2: Disabled\n"); 245 #endif /* CONFIG_PCI2 */ 246 247 } 248 249 250 #if defined(CONFIG_OF_BOARD_SETUP) 251 void 252 ft_board_setup(void *blob, bd_t *bd) 253 { 254 int off; 255 u64 *tmp; 256 u32 *addrcells; 257 258 ft_cpu_setup(blob, bd); 259 260 #ifdef CONFIG_PCI1 261 ft_fsl_pci_setup(blob, "pci0", &pci1_hose); 262 #endif 263 #ifdef CONFIG_PCI2 264 ft_fsl_pci_setup(blob, "pci1", &pci2_hose); 265 #endif 266 267 /* 268 * Warn if it looks like the device tree doesn't match u-boot. 269 * This is just an estimation, based on the location of CCSR, 270 * which is defined by the "reg" property in the soc node. 271 */ 272 off = fdt_path_offset(blob, "/soc8641"); 273 addrcells = (u32 *)fdt_getprop(blob, 0, "#address-cells", NULL); 274 tmp = (u64 *)fdt_getprop(blob, off, "reg", NULL); 275 276 if (tmp) { 277 u64 addr; 278 if (addrcells && (*addrcells == 1)) 279 addr = *(u32 *)tmp; 280 else 281 addr = *tmp; 282 283 if (addr != CONFIG_SYS_CCSRBAR_PHYS) 284 printf("WARNING: The CCSRBAR address in your .dts " 285 "does not match the address of the CCSR " 286 "in u-boot. This means your .dts might " 287 "be old.\n"); 288 } 289 } 290 #endif 291 292 293 /* 294 * get_board_sys_clk 295 * Reads the FPGA on board for CONFIG_SYS_CLK_FREQ 296 */ 297 298 unsigned long 299 get_board_sys_clk(ulong dummy) 300 { 301 u8 i, go_bit, rd_clks; 302 ulong val = 0; 303 304 go_bit = in8(PIXIS_BASE + PIXIS_VCTL); 305 go_bit &= 0x01; 306 307 rd_clks = in8(PIXIS_BASE + PIXIS_VCFGEN0); 308 rd_clks &= 0x1C; 309 310 /* 311 * Only if both go bit and the SCLK bit in VCFGEN0 are set 312 * should we be using the AUX register. Remember, we also set the 313 * GO bit to boot from the alternate bank on the on-board flash 314 */ 315 316 if (go_bit) { 317 if (rd_clks == 0x1c) 318 i = in8(PIXIS_BASE + PIXIS_AUX); 319 else 320 i = in8(PIXIS_BASE + PIXIS_SPD); 321 } else { 322 i = in8(PIXIS_BASE + PIXIS_SPD); 323 } 324 325 i &= 0x07; 326 327 switch (i) { 328 case 0: 329 val = 33000000; 330 break; 331 case 1: 332 val = 40000000; 333 break; 334 case 2: 335 val = 50000000; 336 break; 337 case 3: 338 val = 66000000; 339 break; 340 case 4: 341 val = 83000000; 342 break; 343 case 5: 344 val = 100000000; 345 break; 346 case 6: 347 val = 134000000; 348 break; 349 case 7: 350 val = 166000000; 351 break; 352 } 353 354 return val; 355 } 356 357 int board_eth_init(bd_t *bis) 358 { 359 /* Initialize TSECs */ 360 cpu_eth_init(bis); 361 return pci_eth_init(bis); 362 } 363 364 void board_reset(void) 365 { 366 out8(PIXIS_BASE + PIXIS_RST, 0); 367 368 while (1) 369 ; 370 } 371 372 #ifdef CONFIG_MP 373 extern void cpu_mp_lmb_reserve(struct lmb *lmb); 374 375 void board_lmb_reserve(struct lmb *lmb) 376 { 377 cpu_mp_lmb_reserve(lmb); 378 } 379 #endif 380