2 * (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com
4 * See file CREDITS for list of people who contributed to this
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.
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.
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,
32 #if (CONFIG_COMMANDS & CFG_CMD_UNIVERSE)
37 # define UNI_DBG(fmt) printf fmt
42 #define UNI_PRINT(fmt) printf fmt
45 #define PCI_VENDOR PCI_VENDOR_ID_TUNDRA
46 #define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_CA91C042
49 typedef struct _UNI_DEV UNI_DEV;
61 int universe_init(void)
63 int j, result, lastError = 0;
67 busdevfn = pci_find_device(PCI_VENDOR, PCI_DEVICE, 0);
69 puts("No Tundra Universe found!\n");
73 /* Lets turn Latency off */
74 pci_write_config_dword(busdevfn, 0x0c, 0);
76 dev = malloc(sizeof(*dev));
78 puts("UNIVERSE: No memory!\n");
83 memset(dev, 0, sizeof(*dev));
84 dev->busdevfn = busdevfn;
86 pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_1, &val);
88 dev->uregs = (UNIVERSE *)val;
90 UNI_DBG(("UNIVERSE-Base : %p\n", dev->uregs));
93 UNI_DBG((" Read via mapping, PCI_ID = %08X\n", readl(&dev->uregs->pci_id)));
94 if (((PCI_DEVICE <<16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) {
95 UNI_PRINT(("UNIVERSE: Cannot read PCI-ID via Mapping: %08x\n",
96 readl(&dev->uregs->pci_id)));
101 UNI_DBG(("PCI_BS = %08X\n", readl(&dev->uregs->pci_bs)));
103 dev->pci_bs = readl(&dev->uregs->pci_bs);
105 /* turn off windows */
106 for (j=0; j <4; j ++) {
107 writel(0x00800000, &dev->uregs->lsi[j].ctl);
108 writel(0x00800000, &dev->uregs->vsi[j].ctl);
112 * Write to Misc Register
113 * Set VME Bus Time-out
117 writel(0x15060000, &dev->uregs->misc_ctl);
120 * Lets turn off interrupts
122 writel(0x00000000,&dev->uregs->lint_en); /* Disable interrupts in the Universe first */
123 writel(0x0000FFFF,&dev->uregs->lint_stat); /* Clear Any Pending Interrupts */
125 writel(0x0000, &dev->uregs->lint_map0); /* Map all ints to 0 */
126 writel(0x0000, &dev->uregs->lint_map1); /* Map all ints to 0 */
139 * Create pci slave window (access: pci -> vme)
141 int universe_pci_slave_window(unsigned int pciAddr, unsigned int vmeAddr, int size, int vam, int pms, int vdw)
144 unsigned int ctl = 0;
151 for (i = 0; i < 4; i++) {
152 if (0x00800000 == readl(&dev->uregs->lsi[i].ctl))
157 UNI_PRINT(("universe: No Image available\n"));
162 UNI_DBG(("universe: Using image %d\n", i));
164 writel(pciAddr , &dev->uregs->lsi[i].bs);
165 writel((pciAddr + size), &dev->uregs->lsi[i].bd);
166 writel((vmeAddr - pciAddr), &dev->uregs->lsi[i].to);
168 switch (vam & VME_AM_Axx) {
180 switch (vam & VME_AM_Mxx) {
189 if (vam & VME_AM_SUP) {
194 switch (vdw & VME_FLAG_Dxx) {
206 switch (pms & PCI_MS_Mxx) {
218 ctl |= 0x80000000; /* enable */
220 writel(ctl, &dev->uregs->lsi[i].ctl);
222 UNI_DBG(("universe: window-addr=%p\n", &dev->uregs->lsi[i].ctl));
223 UNI_DBG(("universe: pci slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->lsi[i].ctl)));
224 UNI_DBG(("universe: pci slave window[%d] bs=%08x\n", i, readl(&dev->uregs->lsi[i].bs)));
225 UNI_DBG(("universe: pci slave window[%d] bd=%08x\n", i, readl(&dev->uregs->lsi[i].bd)));
226 UNI_DBG(("universe: pci slave window[%d] to=%08x\n", i, readl(&dev->uregs->lsi[i].to)));
236 * Create vme slave window (access: vme -> pci)
238 int universe_vme_slave_window(unsigned int vmeAddr, unsigned int pciAddr, int size, int vam, int pms)
241 unsigned int ctl = 0;
248 for (i = 0; i < 4; i++) {
249 if (0x00800000 == readl(&dev->uregs->vsi[i].ctl))
254 UNI_PRINT(("universe: No Image available\n"));
259 UNI_DBG(("universe: Using image %d\n", i));
261 writel(vmeAddr , &dev->uregs->vsi[i].bs);
262 writel((vmeAddr + size), &dev->uregs->vsi[i].bd);
263 writel((pciAddr - vmeAddr), &dev->uregs->vsi[i].to);
265 switch (vam & VME_AM_Axx) {
277 switch (vam & VME_AM_Mxx) {
286 if (vam & VME_AM_SUP) {
291 switch (pms & PCI_MS_Mxx) {
303 ctl |= 0x80f00000; /* enable */
305 writel(ctl, &dev->uregs->vsi[i].ctl);
307 UNI_DBG(("universe: window-addr=%p\n", &dev->uregs->vsi[i].ctl));
308 UNI_DBG(("universe: vme slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->vsi[i].ctl)));
309 UNI_DBG(("universe: vme slave window[%d] bs=%08x\n", i, readl(&dev->uregs->vsi[i].bs)));
310 UNI_DBG(("universe: vme slave window[%d] bd=%08x\n", i, readl(&dev->uregs->vsi[i].bd)));
311 UNI_DBG(("universe: vme slave window[%d] to=%08x\n", i, readl(&dev->uregs->vsi[i].to)));
321 * Tundra Universe configuration
323 int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
325 ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, pms = 0, vdw = 0;
332 addr1 = simple_strtoul(argv[2], NULL, 16);
334 addr2 = simple_strtoul(argv[3], NULL, 16);
336 size = simple_strtoul(argv[4], NULL, 16);
338 vam = simple_strtoul(argv[5], NULL, 16);
340 pms = simple_strtoul(argv[6], NULL, 16);
342 vdw = simple_strtoul(argv[7], NULL, 16);
349 printf("Configuring Universe VME Slave Window (VME->PCI):\n");
350 printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx\n",
351 addr1, addr2, size, vam, pms);
352 universe_vme_slave_window(addr1, addr2, size, vam, pms);
355 printf("Configuring Universe PCI Slave Window (PCI->VME):\n");
356 printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx\n",
357 addr1, addr2, size, vam, pms, vdw);
358 universe_pci_slave_window(addr1, addr2, size, vam, pms, vdw);
361 printf("Universe command %s not supported!\n", argv[1]);
369 universe, 8, 1, do_universe,
370 "universe- initialize and configure Turndra Universe\n",
372 " - initialize universe\n"
373 "universe vme [vme_addr] [pci_addr] [size] [vam] [pms]\n"
374 " - create vme slave window (access: vme->pci)\n"
375 "universe pci [pci_addr] [vme_addr] [size] [vam] [pms] [vdw]\n"
376 " - create pci slave window (access: pci->vme)\n"
377 " [vam] = VMEbus Address-Modifier: 01 -> A16 Address Space\n"
378 " 02 -> A24 Address Space\n"
379 " 03 -> A32 Address Space\n"
380 " 04 -> Supervisor AM Code\n"
381 " 10 -> Data AM Code\n"
382 " 20 -> Program AM Code\n"
383 " [pms] = PCI Memory Space: 01 -> Memory Space\n"
385 " 03 -> Configuration Space\n"
386 " [vdw] = VMEbus Maximum Datawidth: 01 -> D8 Data Width\n"
387 " 02 -> D16 Data Width\n"
388 " 03 -> D32 Data Width\n"
391 #endif /* (CONFIG_COMMANDS & CFG_CMD_UNIVERSE) */