1*2e192b24SSimon Glass /* 2*2e192b24SSimon Glass * (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com 3*2e192b24SSimon Glass * 4*2e192b24SSimon Glass * SPDX-License-Identifier: GPL-2.0+ 5*2e192b24SSimon Glass */ 6*2e192b24SSimon Glass 7*2e192b24SSimon Glass #include <common.h> 8*2e192b24SSimon Glass #include <command.h> 9*2e192b24SSimon Glass #include <malloc.h> 10*2e192b24SSimon Glass #include <asm/io.h> 11*2e192b24SSimon Glass #include <pci.h> 12*2e192b24SSimon Glass 13*2e192b24SSimon Glass #include <universe.h> 14*2e192b24SSimon Glass 15*2e192b24SSimon Glass #define PCI_VENDOR PCI_VENDOR_ID_TUNDRA 16*2e192b24SSimon Glass #define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_CA91C042 17*2e192b24SSimon Glass 18*2e192b24SSimon Glass 19*2e192b24SSimon Glass typedef struct _UNI_DEV UNI_DEV; 20*2e192b24SSimon Glass 21*2e192b24SSimon Glass struct _UNI_DEV { 22*2e192b24SSimon Glass int bus; 23*2e192b24SSimon Glass pci_dev_t busdevfn; 24*2e192b24SSimon Glass UNIVERSE *uregs; 25*2e192b24SSimon Glass unsigned int pci_bs; 26*2e192b24SSimon Glass }; 27*2e192b24SSimon Glass 28*2e192b24SSimon Glass static UNI_DEV *dev; 29*2e192b24SSimon Glass 30*2e192b24SSimon Glass 31*2e192b24SSimon Glass int universe_init(void) 32*2e192b24SSimon Glass { 33*2e192b24SSimon Glass int j, result; 34*2e192b24SSimon Glass pci_dev_t busdevfn; 35*2e192b24SSimon Glass unsigned int val; 36*2e192b24SSimon Glass 37*2e192b24SSimon Glass busdevfn = pci_find_device(PCI_VENDOR, PCI_DEVICE, 0); 38*2e192b24SSimon Glass if (busdevfn == -1) { 39*2e192b24SSimon Glass puts("No Tundra Universe found!\n"); 40*2e192b24SSimon Glass return -1; 41*2e192b24SSimon Glass } 42*2e192b24SSimon Glass 43*2e192b24SSimon Glass /* Lets turn Latency off */ 44*2e192b24SSimon Glass pci_write_config_dword(busdevfn, 0x0c, 0); 45*2e192b24SSimon Glass 46*2e192b24SSimon Glass dev = malloc(sizeof(*dev)); 47*2e192b24SSimon Glass if (NULL == dev) { 48*2e192b24SSimon Glass puts("UNIVERSE: No memory!\n"); 49*2e192b24SSimon Glass result = -1; 50*2e192b24SSimon Glass goto break_20; 51*2e192b24SSimon Glass } 52*2e192b24SSimon Glass 53*2e192b24SSimon Glass memset(dev, 0, sizeof(*dev)); 54*2e192b24SSimon Glass dev->busdevfn = busdevfn; 55*2e192b24SSimon Glass 56*2e192b24SSimon Glass pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_1, &val); 57*2e192b24SSimon Glass if (val & 1) { 58*2e192b24SSimon Glass pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_0, &val); 59*2e192b24SSimon Glass } 60*2e192b24SSimon Glass val &= ~0xf; 61*2e192b24SSimon Glass dev->uregs = (UNIVERSE *)val; 62*2e192b24SSimon Glass 63*2e192b24SSimon Glass debug ("UNIVERSE-Base : %p\n", dev->uregs); 64*2e192b24SSimon Glass 65*2e192b24SSimon Glass /* check mapping */ 66*2e192b24SSimon Glass debug (" Read via mapping, PCI_ID = %08X\n", readl(&dev->uregs->pci_id)); 67*2e192b24SSimon Glass if (((PCI_DEVICE <<16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) { 68*2e192b24SSimon Glass printf ("UNIVERSE: Cannot read PCI-ID via Mapping: %08x\n", 69*2e192b24SSimon Glass readl(&dev->uregs->pci_id)); 70*2e192b24SSimon Glass result = -1; 71*2e192b24SSimon Glass goto break_30; 72*2e192b24SSimon Glass } 73*2e192b24SSimon Glass 74*2e192b24SSimon Glass debug ("PCI_BS = %08X\n", readl(&dev->uregs->pci_bs)); 75*2e192b24SSimon Glass 76*2e192b24SSimon Glass dev->pci_bs = readl(&dev->uregs->pci_bs); 77*2e192b24SSimon Glass 78*2e192b24SSimon Glass /* turn off windows */ 79*2e192b24SSimon Glass for (j=0; j <4; j ++) { 80*2e192b24SSimon Glass writel(0x00800000, &dev->uregs->lsi[j].ctl); 81*2e192b24SSimon Glass writel(0x00800000, &dev->uregs->vsi[j].ctl); 82*2e192b24SSimon Glass } 83*2e192b24SSimon Glass 84*2e192b24SSimon Glass /* 85*2e192b24SSimon Glass * Write to Misc Register 86*2e192b24SSimon Glass * Set VME Bus Time-out 87*2e192b24SSimon Glass * Arbitration Mode 88*2e192b24SSimon Glass * DTACK Enable 89*2e192b24SSimon Glass */ 90*2e192b24SSimon Glass writel(0x15040000 | (readl(&dev->uregs->misc_ctl) & 0x00020000), &dev->uregs->misc_ctl); 91*2e192b24SSimon Glass 92*2e192b24SSimon Glass if (readl(&dev->uregs->misc_ctl) & 0x00020000) { 93*2e192b24SSimon Glass debug ("System Controller!\n"); /* test-only */ 94*2e192b24SSimon Glass } else { 95*2e192b24SSimon Glass debug ("Not System Controller!\n"); /* test-only */ 96*2e192b24SSimon Glass } 97*2e192b24SSimon Glass 98*2e192b24SSimon Glass /* 99*2e192b24SSimon Glass * Lets turn off interrupts 100*2e192b24SSimon Glass */ 101*2e192b24SSimon Glass writel(0x00000000,&dev->uregs->lint_en); /* Disable interrupts in the Universe first */ 102*2e192b24SSimon Glass writel(0x0000FFFF,&dev->uregs->lint_stat); /* Clear Any Pending Interrupts */ 103*2e192b24SSimon Glass eieio(); 104*2e192b24SSimon Glass writel(0x0000, &dev->uregs->lint_map0); /* Map all ints to 0 */ 105*2e192b24SSimon Glass writel(0x0000, &dev->uregs->lint_map1); /* Map all ints to 0 */ 106*2e192b24SSimon Glass eieio(); 107*2e192b24SSimon Glass 108*2e192b24SSimon Glass return 0; 109*2e192b24SSimon Glass 110*2e192b24SSimon Glass break_30: 111*2e192b24SSimon Glass free(dev); 112*2e192b24SSimon Glass break_20: 113*2e192b24SSimon Glass return result; 114*2e192b24SSimon Glass } 115*2e192b24SSimon Glass 116*2e192b24SSimon Glass 117*2e192b24SSimon Glass /* 118*2e192b24SSimon Glass * Create pci slave window (access: pci -> vme) 119*2e192b24SSimon Glass */ 120*2e192b24SSimon Glass int universe_pci_slave_window(unsigned int pciAddr, unsigned int vmeAddr, int size, int vam, int pms, int vdw) 121*2e192b24SSimon Glass { 122*2e192b24SSimon Glass int result, i; 123*2e192b24SSimon Glass unsigned int ctl = 0; 124*2e192b24SSimon Glass 125*2e192b24SSimon Glass if (NULL == dev) { 126*2e192b24SSimon Glass result = -1; 127*2e192b24SSimon Glass goto exit_10; 128*2e192b24SSimon Glass } 129*2e192b24SSimon Glass 130*2e192b24SSimon Glass for (i = 0; i < 4; i++) { 131*2e192b24SSimon Glass if (0x00800000 == readl(&dev->uregs->lsi[i].ctl)) 132*2e192b24SSimon Glass break; 133*2e192b24SSimon Glass } 134*2e192b24SSimon Glass 135*2e192b24SSimon Glass if (i == 4) { 136*2e192b24SSimon Glass printf ("universe: No Image available\n"); 137*2e192b24SSimon Glass result = -1; 138*2e192b24SSimon Glass goto exit_10; 139*2e192b24SSimon Glass } 140*2e192b24SSimon Glass 141*2e192b24SSimon Glass debug ("universe: Using image %d\n", i); 142*2e192b24SSimon Glass 143*2e192b24SSimon Glass writel(pciAddr , &dev->uregs->lsi[i].bs); 144*2e192b24SSimon Glass writel((pciAddr + size), &dev->uregs->lsi[i].bd); 145*2e192b24SSimon Glass writel((vmeAddr - pciAddr), &dev->uregs->lsi[i].to); 146*2e192b24SSimon Glass 147*2e192b24SSimon Glass switch (vam & VME_AM_Axx) { 148*2e192b24SSimon Glass case VME_AM_A16: 149*2e192b24SSimon Glass ctl = 0x00000000; 150*2e192b24SSimon Glass break; 151*2e192b24SSimon Glass case VME_AM_A24: 152*2e192b24SSimon Glass ctl = 0x00010000; 153*2e192b24SSimon Glass break; 154*2e192b24SSimon Glass case VME_AM_A32: 155*2e192b24SSimon Glass ctl = 0x00020000; 156*2e192b24SSimon Glass break; 157*2e192b24SSimon Glass } 158*2e192b24SSimon Glass 159*2e192b24SSimon Glass switch (vam & VME_AM_Mxx) { 160*2e192b24SSimon Glass case VME_AM_DATA: 161*2e192b24SSimon Glass ctl |= 0x00000000; 162*2e192b24SSimon Glass break; 163*2e192b24SSimon Glass case VME_AM_PROG: 164*2e192b24SSimon Glass ctl |= 0x00008000; 165*2e192b24SSimon Glass break; 166*2e192b24SSimon Glass } 167*2e192b24SSimon Glass 168*2e192b24SSimon Glass if (vam & VME_AM_SUP) { 169*2e192b24SSimon Glass ctl |= 0x00001000; 170*2e192b24SSimon Glass 171*2e192b24SSimon Glass } 172*2e192b24SSimon Glass 173*2e192b24SSimon Glass switch (vdw & VME_FLAG_Dxx) { 174*2e192b24SSimon Glass case VME_FLAG_D8: 175*2e192b24SSimon Glass ctl |= 0x00000000; 176*2e192b24SSimon Glass break; 177*2e192b24SSimon Glass case VME_FLAG_D16: 178*2e192b24SSimon Glass ctl |= 0x00400000; 179*2e192b24SSimon Glass break; 180*2e192b24SSimon Glass case VME_FLAG_D32: 181*2e192b24SSimon Glass ctl |= 0x00800000; 182*2e192b24SSimon Glass break; 183*2e192b24SSimon Glass } 184*2e192b24SSimon Glass 185*2e192b24SSimon Glass switch (pms & PCI_MS_Mxx) { 186*2e192b24SSimon Glass case PCI_MS_MEM: 187*2e192b24SSimon Glass ctl |= 0x00000000; 188*2e192b24SSimon Glass break; 189*2e192b24SSimon Glass case PCI_MS_IO: 190*2e192b24SSimon Glass ctl |= 0x00000001; 191*2e192b24SSimon Glass break; 192*2e192b24SSimon Glass case PCI_MS_CONFIG: 193*2e192b24SSimon Glass ctl |= 0x00000002; 194*2e192b24SSimon Glass break; 195*2e192b24SSimon Glass } 196*2e192b24SSimon Glass 197*2e192b24SSimon Glass ctl |= 0x80000000; /* enable */ 198*2e192b24SSimon Glass 199*2e192b24SSimon Glass writel(ctl, &dev->uregs->lsi[i].ctl); 200*2e192b24SSimon Glass 201*2e192b24SSimon Glass debug ("universe: window-addr=%p\n", &dev->uregs->lsi[i].ctl); 202*2e192b24SSimon Glass debug ("universe: pci slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->lsi[i].ctl)); 203*2e192b24SSimon Glass debug ("universe: pci slave window[%d] bs=%08x\n", i, readl(&dev->uregs->lsi[i].bs)); 204*2e192b24SSimon Glass debug ("universe: pci slave window[%d] bd=%08x\n", i, readl(&dev->uregs->lsi[i].bd)); 205*2e192b24SSimon Glass debug ("universe: pci slave window[%d] to=%08x\n", i, readl(&dev->uregs->lsi[i].to)); 206*2e192b24SSimon Glass 207*2e192b24SSimon Glass return 0; 208*2e192b24SSimon Glass 209*2e192b24SSimon Glass exit_10: 210*2e192b24SSimon Glass return -result; 211*2e192b24SSimon Glass } 212*2e192b24SSimon Glass 213*2e192b24SSimon Glass 214*2e192b24SSimon Glass /* 215*2e192b24SSimon Glass * Create vme slave window (access: vme -> pci) 216*2e192b24SSimon Glass */ 217*2e192b24SSimon Glass int universe_vme_slave_window(unsigned int vmeAddr, unsigned int pciAddr, int size, int vam, int pms) 218*2e192b24SSimon Glass { 219*2e192b24SSimon Glass int result, i; 220*2e192b24SSimon Glass unsigned int ctl = 0; 221*2e192b24SSimon Glass 222*2e192b24SSimon Glass if (NULL == dev) { 223*2e192b24SSimon Glass result = -1; 224*2e192b24SSimon Glass goto exit_10; 225*2e192b24SSimon Glass } 226*2e192b24SSimon Glass 227*2e192b24SSimon Glass for (i = 0; i < 4; i++) { 228*2e192b24SSimon Glass if (0x00800000 == readl(&dev->uregs->vsi[i].ctl)) 229*2e192b24SSimon Glass break; 230*2e192b24SSimon Glass } 231*2e192b24SSimon Glass 232*2e192b24SSimon Glass if (i == 4) { 233*2e192b24SSimon Glass printf ("universe: No Image available\n"); 234*2e192b24SSimon Glass result = -1; 235*2e192b24SSimon Glass goto exit_10; 236*2e192b24SSimon Glass } 237*2e192b24SSimon Glass 238*2e192b24SSimon Glass debug ("universe: Using image %d\n", i); 239*2e192b24SSimon Glass 240*2e192b24SSimon Glass writel(vmeAddr , &dev->uregs->vsi[i].bs); 241*2e192b24SSimon Glass writel((vmeAddr + size), &dev->uregs->vsi[i].bd); 242*2e192b24SSimon Glass writel((pciAddr - vmeAddr), &dev->uregs->vsi[i].to); 243*2e192b24SSimon Glass 244*2e192b24SSimon Glass switch (vam & VME_AM_Axx) { 245*2e192b24SSimon Glass case VME_AM_A16: 246*2e192b24SSimon Glass ctl = 0x00000000; 247*2e192b24SSimon Glass break; 248*2e192b24SSimon Glass case VME_AM_A24: 249*2e192b24SSimon Glass ctl = 0x00010000; 250*2e192b24SSimon Glass break; 251*2e192b24SSimon Glass case VME_AM_A32: 252*2e192b24SSimon Glass ctl = 0x00020000; 253*2e192b24SSimon Glass break; 254*2e192b24SSimon Glass } 255*2e192b24SSimon Glass 256*2e192b24SSimon Glass switch (vam & VME_AM_Mxx) { 257*2e192b24SSimon Glass case VME_AM_DATA: 258*2e192b24SSimon Glass ctl |= 0x00000000; 259*2e192b24SSimon Glass break; 260*2e192b24SSimon Glass case VME_AM_PROG: 261*2e192b24SSimon Glass ctl |= 0x00800000; 262*2e192b24SSimon Glass break; 263*2e192b24SSimon Glass } 264*2e192b24SSimon Glass 265*2e192b24SSimon Glass if (vam & VME_AM_SUP) { 266*2e192b24SSimon Glass ctl |= 0x00100000; 267*2e192b24SSimon Glass 268*2e192b24SSimon Glass } 269*2e192b24SSimon Glass 270*2e192b24SSimon Glass switch (pms & PCI_MS_Mxx) { 271*2e192b24SSimon Glass case PCI_MS_MEM: 272*2e192b24SSimon Glass ctl |= 0x00000000; 273*2e192b24SSimon Glass break; 274*2e192b24SSimon Glass case PCI_MS_IO: 275*2e192b24SSimon Glass ctl |= 0x00000001; 276*2e192b24SSimon Glass break; 277*2e192b24SSimon Glass case PCI_MS_CONFIG: 278*2e192b24SSimon Glass ctl |= 0x00000002; 279*2e192b24SSimon Glass break; 280*2e192b24SSimon Glass } 281*2e192b24SSimon Glass 282*2e192b24SSimon Glass ctl |= 0x80f00000; /* enable */ 283*2e192b24SSimon Glass 284*2e192b24SSimon Glass writel(ctl, &dev->uregs->vsi[i].ctl); 285*2e192b24SSimon Glass 286*2e192b24SSimon Glass debug ("universe: window-addr=%p\n", &dev->uregs->vsi[i].ctl); 287*2e192b24SSimon Glass debug ("universe: vme slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->vsi[i].ctl)); 288*2e192b24SSimon Glass debug ("universe: vme slave window[%d] bs=%08x\n", i, readl(&dev->uregs->vsi[i].bs)); 289*2e192b24SSimon Glass debug ("universe: vme slave window[%d] bd=%08x\n", i, readl(&dev->uregs->vsi[i].bd)); 290*2e192b24SSimon Glass debug ("universe: vme slave window[%d] to=%08x\n", i, readl(&dev->uregs->vsi[i].to)); 291*2e192b24SSimon Glass 292*2e192b24SSimon Glass return 0; 293*2e192b24SSimon Glass 294*2e192b24SSimon Glass exit_10: 295*2e192b24SSimon Glass return -result; 296*2e192b24SSimon Glass } 297*2e192b24SSimon Glass 298*2e192b24SSimon Glass 299*2e192b24SSimon Glass /* 300*2e192b24SSimon Glass * Tundra Universe configuration 301*2e192b24SSimon Glass */ 302*2e192b24SSimon Glass int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 303*2e192b24SSimon Glass { 304*2e192b24SSimon Glass ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, pms = 0, vdw = 0; 305*2e192b24SSimon Glass char cmd = 'x'; 306*2e192b24SSimon Glass 307*2e192b24SSimon Glass /* get parameter */ 308*2e192b24SSimon Glass if (argc > 1) 309*2e192b24SSimon Glass cmd = argv[1][0]; 310*2e192b24SSimon Glass if (argc > 2) 311*2e192b24SSimon Glass addr1 = simple_strtoul(argv[2], NULL, 16); 312*2e192b24SSimon Glass if (argc > 3) 313*2e192b24SSimon Glass addr2 = simple_strtoul(argv[3], NULL, 16); 314*2e192b24SSimon Glass if (argc > 4) 315*2e192b24SSimon Glass size = simple_strtoul(argv[4], NULL, 16); 316*2e192b24SSimon Glass if (argc > 5) 317*2e192b24SSimon Glass vam = simple_strtoul(argv[5], NULL, 16); 318*2e192b24SSimon Glass if (argc > 6) 319*2e192b24SSimon Glass pms = simple_strtoul(argv[6], NULL, 16); 320*2e192b24SSimon Glass if (argc > 7) 321*2e192b24SSimon Glass vdw = simple_strtoul(argv[7], NULL, 16); 322*2e192b24SSimon Glass 323*2e192b24SSimon Glass switch (cmd) { 324*2e192b24SSimon Glass case 'i': /* init */ 325*2e192b24SSimon Glass universe_init(); 326*2e192b24SSimon Glass break; 327*2e192b24SSimon Glass case 'v': /* vme */ 328*2e192b24SSimon Glass printf("Configuring Universe VME Slave Window (VME->PCI):\n"); 329*2e192b24SSimon Glass printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx\n", 330*2e192b24SSimon Glass addr1, addr2, size, vam, pms); 331*2e192b24SSimon Glass universe_vme_slave_window(addr1, addr2, size, vam, pms); 332*2e192b24SSimon Glass break; 333*2e192b24SSimon Glass case 'p': /* pci */ 334*2e192b24SSimon Glass printf("Configuring Universe PCI Slave Window (PCI->VME):\n"); 335*2e192b24SSimon Glass printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx\n", 336*2e192b24SSimon Glass addr1, addr2, size, vam, pms, vdw); 337*2e192b24SSimon Glass universe_pci_slave_window(addr1, addr2, size, vam, pms, vdw); 338*2e192b24SSimon Glass break; 339*2e192b24SSimon Glass default: 340*2e192b24SSimon Glass printf("Universe command %s not supported!\n", argv[1]); 341*2e192b24SSimon Glass } 342*2e192b24SSimon Glass 343*2e192b24SSimon Glass return 0; 344*2e192b24SSimon Glass } 345*2e192b24SSimon Glass 346*2e192b24SSimon Glass 347*2e192b24SSimon Glass U_BOOT_CMD( 348*2e192b24SSimon Glass universe, 8, 1, do_universe, 349*2e192b24SSimon Glass "initialize and configure Turndra Universe", 350*2e192b24SSimon Glass "init\n" 351*2e192b24SSimon Glass " - initialize universe\n" 352*2e192b24SSimon Glass "universe vme [vme_addr] [pci_addr] [size] [vam] [pms]\n" 353*2e192b24SSimon Glass " - create vme slave window (access: vme->pci)\n" 354*2e192b24SSimon Glass "universe pci [pci_addr] [vme_addr] [size] [vam] [pms] [vdw]\n" 355*2e192b24SSimon Glass " - create pci slave window (access: pci->vme)\n" 356*2e192b24SSimon Glass " [vam] = VMEbus Address-Modifier: 01 -> A16 Address Space\n" 357*2e192b24SSimon Glass " 02 -> A24 Address Space\n" 358*2e192b24SSimon Glass " 03 -> A32 Address Space\n" 359*2e192b24SSimon Glass " 04 -> Supervisor AM Code\n" 360*2e192b24SSimon Glass " 10 -> Data AM Code\n" 361*2e192b24SSimon Glass " 20 -> Program AM Code\n" 362*2e192b24SSimon Glass " [pms] = PCI Memory Space: 01 -> Memory Space\n" 363*2e192b24SSimon Glass " 02 -> I/O Space\n" 364*2e192b24SSimon Glass " 03 -> Configuration Space\n" 365*2e192b24SSimon Glass " [vdw] = VMEbus Maximum Datawidth: 01 -> D8 Data Width\n" 366*2e192b24SSimon Glass " 02 -> D16 Data Width\n" 367*2e192b24SSimon Glass " 03 -> D32 Data Width" 368*2e192b24SSimon Glass ); 369