]>
git.ipfire.org Git - thirdparty/u-boot.git/blob - cmd/universe.c
1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com
14 #define PCI_VENDOR PCI_VENDOR_ID_TUNDRA
15 #define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_CA91C042
18 typedef struct _UNI_DEV UNI_DEV
;
30 int universe_init(void)
36 busdevfn
= pci_find_device(PCI_VENDOR
, PCI_DEVICE
, 0);
38 puts("No Tundra Universe found!\n");
42 /* Lets turn Latency off */
43 pci_write_config_dword(busdevfn
, 0x0c, 0);
45 dev
= malloc(sizeof(*dev
));
47 puts("UNIVERSE: No memory!\n");
52 memset(dev
, 0, sizeof(*dev
));
53 dev
->busdevfn
= busdevfn
;
55 pci_read_config_dword(busdevfn
, PCI_BASE_ADDRESS_1
, &val
);
57 pci_read_config_dword(busdevfn
, PCI_BASE_ADDRESS_0
, &val
);
60 dev
->uregs
= (UNIVERSE
*)val
;
62 debug ("UNIVERSE-Base : %p\n", dev
->uregs
);
65 debug (" Read via mapping, PCI_ID = %08X\n", readl(&dev
->uregs
->pci_id
));
66 if (((PCI_DEVICE
<<16) | PCI_VENDOR
) != readl(&dev
->uregs
->pci_id
)) {
67 printf ("UNIVERSE: Cannot read PCI-ID via Mapping: %08x\n",
68 readl(&dev
->uregs
->pci_id
));
73 debug ("PCI_BS = %08X\n", readl(&dev
->uregs
->pci_bs
));
75 dev
->pci_bs
= readl(&dev
->uregs
->pci_bs
);
77 /* turn off windows */
78 for (j
=0; j
<4; j
++) {
79 writel(0x00800000, &dev
->uregs
->lsi
[j
].ctl
);
80 writel(0x00800000, &dev
->uregs
->vsi
[j
].ctl
);
84 * Write to Misc Register
85 * Set VME Bus Time-out
89 writel(0x15040000 | (readl(&dev
->uregs
->misc_ctl
) & 0x00020000), &dev
->uregs
->misc_ctl
);
91 if (readl(&dev
->uregs
->misc_ctl
) & 0x00020000) {
92 debug ("System Controller!\n"); /* test-only */
94 debug ("Not System Controller!\n"); /* test-only */
98 * Lets turn off interrupts
100 writel(0x00000000,&dev
->uregs
->lint_en
); /* Disable interrupts in the Universe first */
101 writel(0x0000FFFF,&dev
->uregs
->lint_stat
); /* Clear Any Pending Interrupts */
103 writel(0x0000, &dev
->uregs
->lint_map0
); /* Map all ints to 0 */
104 writel(0x0000, &dev
->uregs
->lint_map1
); /* Map all ints to 0 */
117 * Create pci slave window (access: pci -> vme)
119 int universe_pci_slave_window(unsigned int pciAddr
, unsigned int vmeAddr
, int size
, int vam
, int pms
, int vdw
)
122 unsigned int ctl
= 0;
129 for (i
= 0; i
< 4; i
++) {
130 if (0x00800000 == readl(&dev
->uregs
->lsi
[i
].ctl
))
135 printf ("universe: No Image available\n");
140 debug ("universe: Using image %d\n", i
);
142 writel(pciAddr
, &dev
->uregs
->lsi
[i
].bs
);
143 writel((pciAddr
+ size
), &dev
->uregs
->lsi
[i
].bd
);
144 writel((vmeAddr
- pciAddr
), &dev
->uregs
->lsi
[i
].to
);
146 switch (vam
& VME_AM_Axx
) {
158 switch (vam
& VME_AM_Mxx
) {
167 if (vam
& VME_AM_SUP
) {
172 switch (vdw
& VME_FLAG_Dxx
) {
184 switch (pms
& PCI_MS_Mxx
) {
196 ctl
|= 0x80000000; /* enable */
198 writel(ctl
, &dev
->uregs
->lsi
[i
].ctl
);
200 debug ("universe: window-addr=%p\n", &dev
->uregs
->lsi
[i
].ctl
);
201 debug ("universe: pci slave window[%d] ctl=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].ctl
));
202 debug ("universe: pci slave window[%d] bs=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].bs
));
203 debug ("universe: pci slave window[%d] bd=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].bd
));
204 debug ("universe: pci slave window[%d] to=%08x\n", i
, readl(&dev
->uregs
->lsi
[i
].to
));
214 * Create vme slave window (access: vme -> pci)
216 int universe_vme_slave_window(unsigned int vmeAddr
, unsigned int pciAddr
, int size
, int vam
, int pms
)
219 unsigned int ctl
= 0;
226 for (i
= 0; i
< 4; i
++) {
227 if (0x00800000 == readl(&dev
->uregs
->vsi
[i
].ctl
))
232 printf ("universe: No Image available\n");
237 debug ("universe: Using image %d\n", i
);
239 writel(vmeAddr
, &dev
->uregs
->vsi
[i
].bs
);
240 writel((vmeAddr
+ size
), &dev
->uregs
->vsi
[i
].bd
);
241 writel((pciAddr
- vmeAddr
), &dev
->uregs
->vsi
[i
].to
);
243 switch (vam
& VME_AM_Axx
) {
255 switch (vam
& VME_AM_Mxx
) {
264 if (vam
& VME_AM_SUP
) {
269 switch (pms
& PCI_MS_Mxx
) {
281 ctl
|= 0x80f00000; /* enable */
283 writel(ctl
, &dev
->uregs
->vsi
[i
].ctl
);
285 debug ("universe: window-addr=%p\n", &dev
->uregs
->vsi
[i
].ctl
);
286 debug ("universe: vme slave window[%d] ctl=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].ctl
));
287 debug ("universe: vme slave window[%d] bs=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].bs
));
288 debug ("universe: vme slave window[%d] bd=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].bd
));
289 debug ("universe: vme slave window[%d] to=%08x\n", i
, readl(&dev
->uregs
->vsi
[i
].to
));
299 * Tundra Universe configuration
301 int do_universe(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
303 ulong addr1
= 0, addr2
= 0, size
= 0, vam
= 0, pms
= 0, vdw
= 0;
310 addr1
= simple_strtoul(argv
[2], NULL
, 16);
312 addr2
= simple_strtoul(argv
[3], NULL
, 16);
314 size
= simple_strtoul(argv
[4], NULL
, 16);
316 vam
= simple_strtoul(argv
[5], NULL
, 16);
318 pms
= simple_strtoul(argv
[6], NULL
, 16);
320 vdw
= simple_strtoul(argv
[7], NULL
, 16);
327 printf("Configuring Universe VME Slave Window (VME->PCI):\n");
328 printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx\n",
329 addr1
, addr2
, size
, vam
, pms
);
330 universe_vme_slave_window(addr1
, addr2
, size
, vam
, pms
);
333 printf("Configuring Universe PCI Slave Window (PCI->VME):\n");
334 printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx\n",
335 addr1
, addr2
, size
, vam
, pms
, vdw
);
336 universe_pci_slave_window(addr1
, addr2
, size
, vam
, pms
, vdw
);
339 printf("Universe command %s not supported!\n", argv
[1]);
347 universe
, 8, 1, do_universe
,
348 "initialize and configure Turndra Universe",
350 " - initialize universe\n"
351 "universe vme [vme_addr] [pci_addr] [size] [vam] [pms]\n"
352 " - create vme slave window (access: vme->pci)\n"
353 "universe pci [pci_addr] [vme_addr] [size] [vam] [pms] [vdw]\n"
354 " - create pci slave window (access: pci->vme)\n"
355 " [vam] = VMEbus Address-Modifier: 01 -> A16 Address Space\n"
356 " 02 -> A24 Address Space\n"
357 " 03 -> A32 Address Space\n"
358 " 04 -> Supervisor AM Code\n"
359 " 10 -> Data AM Code\n"
360 " 20 -> Program AM Code\n"
361 " [pms] = PCI Memory Space: 01 -> Memory Space\n"
363 " 03 -> Configuration Space\n"
364 " [vdw] = VMEbus Maximum Datawidth: 01 -> D8 Data Width\n"
365 " 02 -> D16 Data Width\n"
366 " 03 -> D32 Data Width"