]>
git.ipfire.org Git - people/ms/u-boot.git/blob - cmd/universe.c
2 * (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com
4 * SPDX-License-Identifier: GPL-2.0+
15 #define PCI_VENDOR PCI_VENDOR_ID_TUNDRA
16 #define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_CA91C042
19 typedef struct _UNI_DEV UNI_DEV
;
31 int universe_init(void)
37 busdevfn
= pci_find_device(PCI_VENDOR
, PCI_DEVICE
, 0);
39 puts("No Tundra Universe found!\n");
43 /* Lets turn Latency off */
44 pci_write_config_dword(busdevfn
, 0x0c, 0);
46 dev
= malloc(sizeof(*dev
));
48 puts("UNIVERSE: No memory!\n");
53 memset(dev
, 0, sizeof(*dev
));
54 dev
->busdevfn
= busdevfn
;
56 pci_read_config_dword(busdevfn
, PCI_BASE_ADDRESS_1
, &val
);
58 pci_read_config_dword(busdevfn
, PCI_BASE_ADDRESS_0
, &val
);
61 dev
->uregs
= (UNIVERSE
*)val
;
63 debug ("UNIVERSE-Base : %p\n", dev
->uregs
);
66 debug (" Read via mapping, PCI_ID = %08X\n", readl(&dev
->uregs
->pci_id
));
67 if (((PCI_DEVICE
<<16) | PCI_VENDOR
) != readl(&dev
->uregs
->pci_id
)) {
68 printf ("UNIVERSE: Cannot read PCI-ID via Mapping: %08x\n",
69 readl(&dev
->uregs
->pci_id
));
74 debug ("PCI_BS = %08X\n", readl(&dev
->uregs
->pci_bs
));
76 dev
->pci_bs
= readl(&dev
->uregs
->pci_bs
);
78 /* turn off windows */
79 for (j
=0; j
<4; j
++) {
80 writel(0x00800000, &dev
->uregs
->lsi
[j
].ctl
);
81 writel(0x00800000, &dev
->uregs
->vsi
[j
].ctl
);
85 * Write to Misc Register
86 * Set VME Bus Time-out
90 writel(0x15040000 | (readl(&dev
->uregs
->misc_ctl
) & 0x00020000), &dev
->uregs
->misc_ctl
);
92 if (readl(&dev
->uregs
->misc_ctl
) & 0x00020000) {
93 debug ("System Controller!\n"); /* test-only */
95 debug ("Not System Controller!\n"); /* test-only */
99 * Lets turn off interrupts
101 writel(0x00000000,&dev
->uregs
->lint_en
); /* Disable interrupts in the Universe first */
102 writel(0x0000FFFF,&dev
->uregs
->lint_stat
); /* Clear Any Pending Interrupts */
104 writel(0x0000, &dev
->uregs
->lint_map0
); /* Map all ints to 0 */
105 writel(0x0000, &dev
->uregs
->lint_map1
); /* Map all ints to 0 */
118 * Create pci slave window (access: pci -> vme)
120 int universe_pci_slave_window(unsigned int pciAddr
, unsigned int vmeAddr
, int size
, int vam
, int pms
, int vdw
)
123 unsigned int ctl
= 0;
130 for (i
= 0; i
< 4; i
++) {
131 if (0x00800000 == readl(&dev
->uregs
->lsi
[i
].ctl
))
136 printf ("universe: No Image available\n");
141 debug ("universe: Using image %d\n", i
);
143 writel(pciAddr
, &dev
->uregs
->lsi
[i
].bs
);
144 writel((pciAddr
+ size
), &dev
->uregs
->lsi
[i
].bd
);
145 writel((vmeAddr
- pciAddr
), &dev
->uregs
->lsi
[i
].to
);
147 switch (vam
& VME_AM_Axx
) {
159 switch (vam
& VME_AM_Mxx
) {
168 if (vam
& VME_AM_SUP
) {
173 switch (vdw
& VME_FLAG_Dxx
) {
185 switch (pms
& PCI_MS_Mxx
) {
197 ctl
|= 0x80000000; /* enable */
199 writel(ctl
, &dev
->uregs
->lsi
[i
].ctl
);
201 debug ("universe: window-addr=%p\n", &dev
->uregs
->lsi
[i
].ctl
);
202 debug ("universe: pci slave window[%d] ctl=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].ctl
));
203 debug ("universe: pci slave window[%d] bs=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].bs
));
204 debug ("universe: pci slave window[%d] bd=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].bd
));
205 debug ("universe: pci slave window[%d] to=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].to
));
215 * Create vme slave window (access: vme -> pci)
217 int universe_vme_slave_window(unsigned int vmeAddr
, unsigned int pciAddr
, int size
, int vam
, int pms
)
220 unsigned int ctl
= 0;
227 for (i
= 0; i
< 4; i
++) {
228 if (0x00800000 == readl(&dev
->uregs
->vsi
[i
].ctl
))
233 printf ("universe: No Image available\n");
238 debug ("universe: Using image %d\n", i
);
240 writel(vmeAddr
, &dev
->uregs
->vsi
[i
].bs
);
241 writel((vmeAddr
+ size
), &dev
->uregs
->vsi
[i
].bd
);
242 writel((pciAddr
- vmeAddr
), &dev
->uregs
->vsi
[i
].to
);
244 switch (vam
& VME_AM_Axx
) {
256 switch (vam
& VME_AM_Mxx
) {
265 if (vam
& VME_AM_SUP
) {
270 switch (pms
& PCI_MS_Mxx
) {
282 ctl
|= 0x80f00000; /* enable */
284 writel(ctl
, &dev
->uregs
->vsi
[i
].ctl
);
286 debug ("universe: window-addr=%p\n", &dev
->uregs
->vsi
[i
].ctl
);
287 debug ("universe: vme slave window[%d] ctl=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].ctl
));
288 debug ("universe: vme slave window[%d] bs=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].bs
));
289 debug ("universe: vme slave window[%d] bd=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].bd
));
290 debug ("universe: vme slave window[%d] to=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].to
));
300 * Tundra Universe configuration
302 int do_universe(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
304 ulong addr1
= 0, addr2
= 0, size
= 0, vam
= 0, pms
= 0, vdw
= 0;
311 addr1
= simple_strtoul(argv
[2], NULL
, 16);
313 addr2
= simple_strtoul(argv
[3], NULL
, 16);
315 size
= simple_strtoul(argv
[4], NULL
, 16);
317 vam
= simple_strtoul(argv
[5], NULL
, 16);
319 pms
= simple_strtoul(argv
[6], NULL
, 16);
321 vdw
= simple_strtoul(argv
[7], NULL
, 16);
328 printf("Configuring Universe VME Slave Window (VME->PCI):\n");
329 printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx\n",
330 addr1
, addr2
, size
, vam
, pms
);
331 universe_vme_slave_window(addr1
, addr2
, size
, vam
, pms
);
334 printf("Configuring Universe PCI Slave Window (PCI->VME):\n");
335 printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx\n",
336 addr1
, addr2
, size
, vam
, pms
, vdw
);
337 universe_pci_slave_window(addr1
, addr2
, size
, vam
, pms
, vdw
);
340 printf("Universe command %s not supported!\n", argv
[1]);
348 universe
, 8, 1, do_universe
,
349 "initialize and configure Turndra Universe",
351 " - initialize universe\n"
352 "universe vme [vme_addr] [pci_addr] [size] [vam] [pms]\n"
353 " - create vme slave window (access: vme->pci)\n"
354 "universe pci [pci_addr] [vme_addr] [size] [vam] [pms] [vdw]\n"
355 " - create pci slave window (access: pci->vme)\n"
356 " [vam] = VMEbus Address-Modifier: 01 -> A16 Address Space\n"
357 " 02 -> A24 Address Space\n"
358 " 03 -> A32 Address Space\n"
359 " 04 -> Supervisor AM Code\n"
360 " 10 -> Data AM Code\n"
361 " 20 -> Program AM Code\n"
362 " [pms] = PCI Memory Space: 01 -> Memory Space\n"
364 " 03 -> Configuration Space\n"
365 " [vdw] = VMEbus Maximum Datawidth: 01 -> D8 Data Width\n"
366 " 02 -> D16 Data Width\n"
367 " 03 -> D32 Data Width"