+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com
- */
-
-#include <command.h>
-#include <malloc.h>
-#include <vsprintf.h>
-#include <asm/io.h>
-#include <pci.h>
-
-#include <universe.h>
-
-#define PCI_VENDOR PCI_VENDOR_ID_TUNDRA
-#define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_CA91C042
-
-typedef struct _UNI_DEV UNI_DEV;
-
-struct _UNI_DEV {
- int bus;
- pci_dev_t busdevfn;
- UNIVERSE *uregs;
- unsigned int pci_bs;
-};
-
-static UNI_DEV *dev;
-
-int universe_init(void)
-{
- int j, result;
- pci_dev_t busdevfn;
- unsigned int val;
-
- busdevfn = pci_find_device(PCI_VENDOR, PCI_DEVICE, 0);
- if (busdevfn == -1) {
- puts("No Tundra Universe found!\n");
- return -1;
- }
-
- /* Lets turn Latency off */
- pci_write_config_dword(busdevfn, 0x0c, 0);
-
- dev = malloc(sizeof(*dev));
- if (NULL == dev) {
- puts("UNIVERSE: No memory!\n");
- result = -1;
- goto break_20;
- }
-
- memset(dev, 0, sizeof(*dev));
- dev->busdevfn = busdevfn;
-
- pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_1, &val);
- if (val & 1) {
- pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_0, &val);
- }
- val &= ~0xf;
- dev->uregs = (UNIVERSE *)val;
-
- debug ("UNIVERSE-Base : %p\n", dev->uregs);
-
- /* check mapping */
- debug (" Read via mapping, PCI_ID = %08X\n", readl(&dev->uregs->pci_id));
- if (((PCI_DEVICE <<16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) {
- printf ("UNIVERSE: Cannot read PCI-ID via Mapping: %08x\n",
- readl(&dev->uregs->pci_id));
- result = -1;
- goto break_30;
- }
-
- debug ("PCI_BS = %08X\n", readl(&dev->uregs->pci_bs));
-
- dev->pci_bs = readl(&dev->uregs->pci_bs);
-
- /* turn off windows */
- for (j=0; j <4; j ++) {
- writel(0x00800000, &dev->uregs->lsi[j].ctl);
- writel(0x00800000, &dev->uregs->vsi[j].ctl);
- }
-
- /*
- * Write to Misc Register
- * Set VME Bus Time-out
- * Arbitration Mode
- * DTACK Enable
- */
- writel(0x15040000 | (readl(&dev->uregs->misc_ctl) & 0x00020000), &dev->uregs->misc_ctl);
-
- if (readl(&dev->uregs->misc_ctl) & 0x00020000) {
- debug ("System Controller!\n"); /* test-only */
- } else {
- debug ("Not System Controller!\n"); /* test-only */
- }
-
- /*
- * Lets turn off interrupts
- */
- writel(0x00000000,&dev->uregs->lint_en); /* Disable interrupts in the Universe first */
- writel(0x0000FFFF,&dev->uregs->lint_stat); /* Clear Any Pending Interrupts */
- eieio();
- writel(0x0000, &dev->uregs->lint_map0); /* Map all ints to 0 */
- writel(0x0000, &dev->uregs->lint_map1); /* Map all ints to 0 */
- eieio();
-
- return 0;
-
- break_30:
- free(dev);
- break_20:
- return result;
-}
-
-/*
- * Create pci slave window (access: pci -> vme)
- */
-int universe_pci_slave_window(unsigned int pciAddr, unsigned int vmeAddr, int size, int vam, int pms, int vdw)
-{
- int result, i;
- unsigned int ctl = 0;
-
- if (NULL == dev) {
- result = -1;
- goto exit_10;
- }
-
- for (i = 0; i < 4; i++) {
- if (0x00800000 == readl(&dev->uregs->lsi[i].ctl))
- break;
- }
-
- if (i == 4) {
- printf ("universe: No Image available\n");
- result = -1;
- goto exit_10;
- }
-
- debug ("universe: Using image %d\n", i);
-
- writel(pciAddr , &dev->uregs->lsi[i].bs);
- writel((pciAddr + size), &dev->uregs->lsi[i].bd);
- writel((vmeAddr - pciAddr), &dev->uregs->lsi[i].to);
-
- switch (vam & VME_AM_Axx) {
- case VME_AM_A16:
- ctl = 0x00000000;
- break;
- case VME_AM_A24:
- ctl = 0x00010000;
- break;
- case VME_AM_A32:
- ctl = 0x00020000;
- break;
- }
-
- switch (vam & VME_AM_Mxx) {
- case VME_AM_DATA:
- ctl |= 0x00000000;
- break;
- case VME_AM_PROG:
- ctl |= 0x00008000;
- break;
- }
-
- if (vam & VME_AM_SUP) {
- ctl |= 0x00001000;
-
- }
-
- switch (vdw & VME_FLAG_Dxx) {
- case VME_FLAG_D8:
- ctl |= 0x00000000;
- break;
- case VME_FLAG_D16:
- ctl |= 0x00400000;
- break;
- case VME_FLAG_D32:
- ctl |= 0x00800000;
- break;
- }
-
- switch (pms & PCI_MS_Mxx) {
- case PCI_MS_MEM:
- ctl |= 0x00000000;
- break;
- case PCI_MS_IO:
- ctl |= 0x00000001;
- break;
- case PCI_MS_CONFIG:
- ctl |= 0x00000002;
- break;
- }
-
- ctl |= 0x80000000; /* enable */
-
- writel(ctl, &dev->uregs->lsi[i].ctl);
-
- debug ("universe: window-addr=%p\n", &dev->uregs->lsi[i].ctl);
- debug ("universe: pci slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->lsi[i].ctl));
- debug ("universe: pci slave window[%d] bs=%08x\n", i, readl(&dev->uregs->lsi[i].bs));
- debug ("universe: pci slave window[%d] bd=%08x\n", i, readl(&dev->uregs->lsi[i].bd));
- debug ("universe: pci slave window[%d] to=%08x\n", i, readl(&dev->uregs->lsi[i].to));
-
- return 0;
-
- exit_10:
- return -result;
-}
-
-/*
- * Create vme slave window (access: vme -> pci)
- */
-int universe_vme_slave_window(unsigned int vmeAddr, unsigned int pciAddr, int size, int vam, int pms)
-{
- int result, i;
- unsigned int ctl = 0;
-
- if (NULL == dev) {
- result = -1;
- goto exit_10;
- }
-
- for (i = 0; i < 4; i++) {
- if (0x00800000 == readl(&dev->uregs->vsi[i].ctl))
- break;
- }
-
- if (i == 4) {
- printf ("universe: No Image available\n");
- result = -1;
- goto exit_10;
- }
-
- debug ("universe: Using image %d\n", i);
-
- writel(vmeAddr , &dev->uregs->vsi[i].bs);
- writel((vmeAddr + size), &dev->uregs->vsi[i].bd);
- writel((pciAddr - vmeAddr), &dev->uregs->vsi[i].to);
-
- switch (vam & VME_AM_Axx) {
- case VME_AM_A16:
- ctl = 0x00000000;
- break;
- case VME_AM_A24:
- ctl = 0x00010000;
- break;
- case VME_AM_A32:
- ctl = 0x00020000;
- break;
- }
-
- switch (vam & VME_AM_Mxx) {
- case VME_AM_DATA:
- ctl |= 0x00000000;
- break;
- case VME_AM_PROG:
- ctl |= 0x00800000;
- break;
- }
-
- if (vam & VME_AM_SUP) {
- ctl |= 0x00100000;
-
- }
-
- switch (pms & PCI_MS_Mxx) {
- case PCI_MS_MEM:
- ctl |= 0x00000000;
- break;
- case PCI_MS_IO:
- ctl |= 0x00000001;
- break;
- case PCI_MS_CONFIG:
- ctl |= 0x00000002;
- break;
- }
-
- ctl |= 0x80f00000; /* enable */
-
- writel(ctl, &dev->uregs->vsi[i].ctl);
-
- debug ("universe: window-addr=%p\n", &dev->uregs->vsi[i].ctl);
- debug ("universe: vme slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->vsi[i].ctl));
- debug ("universe: vme slave window[%d] bs=%08x\n", i, readl(&dev->uregs->vsi[i].bs));
- debug ("universe: vme slave window[%d] bd=%08x\n", i, readl(&dev->uregs->vsi[i].bd));
- debug ("universe: vme slave window[%d] to=%08x\n", i, readl(&dev->uregs->vsi[i].to));
-
- return 0;
-
- exit_10:
- return -result;
-}
-
-/*
- * Tundra Universe configuration
- */
-int do_universe(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
- ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, pms = 0, vdw = 0;
- char cmd = 'x';
-
- /* get parameter */
- if (argc > 1)
- cmd = argv[1][0];
- if (argc > 2)
- addr1 = hextoul(argv[2], NULL);
- if (argc > 3)
- addr2 = hextoul(argv[3], NULL);
- if (argc > 4)
- size = hextoul(argv[4], NULL);
- if (argc > 5)
- vam = hextoul(argv[5], NULL);
- if (argc > 6)
- pms = hextoul(argv[6], NULL);
- if (argc > 7)
- vdw = hextoul(argv[7], NULL);
-
- switch (cmd) {
- case 'i': /* init */
- universe_init();
- break;
- case 'v': /* vme */
- printf("Configuring Universe VME Slave Window (VME->PCI):\n");
- printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx\n",
- addr1, addr2, size, vam, pms);
- universe_vme_slave_window(addr1, addr2, size, vam, pms);
- break;
- case 'p': /* pci */
- printf("Configuring Universe PCI Slave Window (PCI->VME):\n");
- printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx\n",
- addr1, addr2, size, vam, pms, vdw);
- universe_pci_slave_window(addr1, addr2, size, vam, pms, vdw);
- break;
- default:
- printf("Universe command %s not supported!\n", argv[1]);
- }
-
- return 0;
-}
-
-U_BOOT_CMD(
- universe, 8, 1, do_universe,
- "initialize and configure Turndra Universe",
- "init\n"
- " - initialize universe\n"
- "universe vme [vme_addr] [pci_addr] [size] [vam] [pms]\n"
- " - create vme slave window (access: vme->pci)\n"
- "universe pci [pci_addr] [vme_addr] [size] [vam] [pms] [vdw]\n"
- " - create pci slave window (access: pci->vme)\n"
- " [vam] = VMEbus Address-Modifier: 01 -> A16 Address Space\n"
- " 02 -> A24 Address Space\n"
- " 03 -> A32 Address Space\n"
- " 04 -> Supervisor AM Code\n"
- " 10 -> Data AM Code\n"
- " 20 -> Program AM Code\n"
- " [pms] = PCI Memory Space: 01 -> Memory Space\n"
- " 02 -> I/O Space\n"
- " 03 -> Configuration Space\n"
- " [vdw] = VMEbus Maximum Datawidth: 01 -> D8 Data Width\n"
- " 02 -> D16 Data Width\n"
- " 03 -> D32 Data Width"
-);
projects / thirdparty / u-boot.git / commitdiff
