stroese
21 years ago
parent
bcd0be5cf1
commit
256e4be814
@ -0,0 +1,391 @@ |
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/*
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* (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#include <command.h> |
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#include <malloc.h> |
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#include <asm/io.h> |
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#include <pci.h> |
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#include <universe.h> |
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#if (CONFIG_COMMANDS & CFG_CMD_UNIVERSE) |
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#undef DBG |
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#ifdef DBG |
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# define UNI_DBG(fmt) printf fmt |
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#else |
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# define UNI_DBG(fmt) |
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#endif |
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#define UNI_PRINT(fmt) printf fmt |
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#define PCI_VENDOR PCI_VENDOR_ID_TUNDRA |
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#define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_CA91C042 |
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typedef struct _UNI_DEV UNI_DEV; |
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struct _UNI_DEV { |
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int bus; |
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pci_dev_t busdevfn; |
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UNIVERSE *uregs; |
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unsigned int pci_bs; |
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}; |
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static UNI_DEV *dev; |
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int universe_init(void) |
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{ |
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int j, result, lastError = 0; |
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pci_dev_t busdevfn; |
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unsigned int val; |
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busdevfn = pci_find_device(PCI_VENDOR, PCI_DEVICE, 0); |
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if (busdevfn == -1) { |
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puts("No Tundra Universe found!\n"); |
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return -1; |
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} |
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/* Lets turn Latency off */ |
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pci_write_config_dword(busdevfn, 0x0c, 0); |
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dev = malloc(sizeof(*dev)); |
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if (NULL == dev) { |
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puts("UNIVERSE: No memory!\n"); |
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result = -1; |
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goto break_20; |
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} |
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memset(dev, 0, sizeof(*dev)); |
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dev->busdevfn = busdevfn; |
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pci_read_config_dword(busdevfn, PCI_BASE_ADDRESS_1, &val); |
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val &= ~0xf; |
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dev->uregs = (UNIVERSE *)val; |
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UNI_DBG(("UNIVERSE-Base : %p\n", dev->uregs)); |
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/* check mapping */ |
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UNI_DBG((" Read via mapping, PCI_ID = %08X\n", readl(&dev->uregs->pci_id))); |
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if (((PCI_DEVICE <<16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) { |
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UNI_PRINT(("UNIVERSE: Cannot read PCI-ID via Mapping: %08x\n", |
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readl(&dev->uregs->pci_id))); |
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result = -1; |
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goto break_30; |
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} |
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UNI_DBG(("PCI_BS = %08X\n", readl(&dev->uregs->pci_bs))); |
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dev->pci_bs = readl(&dev->uregs->pci_bs); |
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/* turn off windows */ |
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for (j=0; j <4; j ++) { |
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writel(0x00800000, &dev->uregs->lsi[j].ctl); |
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writel(0x00800000, &dev->uregs->vsi[j].ctl); |
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} |
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/*
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* Write to Misc Register |
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* Set VME Bus Time-out |
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* Arbitration Mode |
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* DTACK Enable |
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*/ |
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writel(0x15060000, &dev->uregs->misc_ctl); |
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/*
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* Lets turn off interrupts |
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*/ |
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writel(0x00000000,&dev->uregs->lint_en); /* Disable interrupts in the Universe first */ |
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writel(0x0000FFFF,&dev->uregs->lint_stat); /* Clear Any Pending Interrupts */ |
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eieio(); |
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writel(0x0000, &dev->uregs->lint_map0); /* Map all ints to 0 */ |
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writel(0x0000, &dev->uregs->lint_map1); /* Map all ints to 0 */ |
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eieio(); |
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break_30: |
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free(dev); |
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break_20: |
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lastError = result; |
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return 0; |
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} |
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/*
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* Create pci slave window (access: pci -> vme) |
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*/ |
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int universe_pci_slave_window(unsigned int pciAddr, unsigned int vmeAddr, int size, int vam, int pms, int vdw) |
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{ |
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int result, i; |
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unsigned int ctl = 0; |
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if (NULL == dev) { |
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result = -1; |
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goto exit_10; |
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} |
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for (i = 0; i < 4; i++) { |
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if (0x00800000 == readl(&dev->uregs->lsi[i].ctl)) |
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break; |
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} |
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if (i == 4) { |
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UNI_PRINT(("universe: No Image available\n")); |
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result = -1; |
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goto exit_10; |
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} |
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UNI_DBG(("universe: Using image %d\n", i)); |
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writel(pciAddr , &dev->uregs->lsi[i].bs); |
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writel((pciAddr + size), &dev->uregs->lsi[i].bd); |
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writel((vmeAddr - pciAddr), &dev->uregs->lsi[i].to); |
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switch (vam & VME_AM_Axx) { |
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case VME_AM_A16: |
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ctl = 0x00000000; |
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break; |
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case VME_AM_A24: |
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ctl = 0x00010000; |
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break; |
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case VME_AM_A32: |
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ctl = 0x00020000; |
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break; |
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} |
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switch (vam & VME_AM_Mxx) { |
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case VME_AM_DATA: |
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ctl |= 0x00000000; |
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break; |
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case VME_AM_PROG: |
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ctl |= 0x00008000; |
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break; |
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} |
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if (vam & VME_AM_SUP) { |
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ctl |= 0x00001000; |
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} |
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switch (vdw & VME_FLAG_Dxx) { |
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case VME_FLAG_D8: |
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ctl |= 0x00000000; |
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break; |
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case VME_FLAG_D16: |
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ctl |= 0x00400000; |
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break; |
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case VME_FLAG_D32: |
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ctl |= 0x00800000; |
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break; |
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} |
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switch (pms & PCI_MS_Mxx) { |
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case PCI_MS_MEM: |
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ctl = 0x00000000; |
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break; |
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case PCI_MS_IO: |
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ctl = 0x00000001; |
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break; |
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case PCI_MS_CONFIG: |
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ctl = 0x00000002; |
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break; |
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} |
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ctl |= 0x80000000; /* enable */ |
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writel(ctl, &dev->uregs->lsi[i].ctl); |
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UNI_DBG(("universe: window-addr=%p\n", &dev->uregs->lsi[i].ctl)); |
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UNI_DBG(("universe: pci slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->lsi[i].ctl))); |
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UNI_DBG(("universe: pci slave window[%d] bs=%08x\n", i, readl(&dev->uregs->lsi[i].bs))); |
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UNI_DBG(("universe: pci slave window[%d] bd=%08x\n", i, readl(&dev->uregs->lsi[i].bd))); |
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UNI_DBG(("universe: pci slave window[%d] to=%08x\n", i, readl(&dev->uregs->lsi[i].to))); |
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return 0; |
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exit_10: |
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return -result; |
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} |
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/*
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* Create vme slave window (access: vme -> pci) |
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*/ |
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int universe_vme_slave_window(unsigned int vmeAddr, unsigned int pciAddr, int size, int vam, int pms) |
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{ |
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int result, i; |
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unsigned int ctl = 0; |
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if (NULL == dev) { |
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result = -1; |
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goto exit_10; |
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} |
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for (i = 0; i < 4; i++) { |
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if (0x00800000 == readl(&dev->uregs->vsi[i].ctl)) |
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break; |
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} |
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if (i == 4) { |
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UNI_PRINT(("universe: No Image available\n")); |
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result = -1; |
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goto exit_10; |
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} |
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UNI_DBG(("universe: Using image %d\n", i)); |
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writel(vmeAddr , &dev->uregs->vsi[i].bs); |
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writel((vmeAddr + size), &dev->uregs->vsi[i].bd); |
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writel((pciAddr - vmeAddr), &dev->uregs->vsi[i].to); |
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switch (vam & VME_AM_Axx) { |
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case VME_AM_A16: |
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ctl = 0x00000000; |
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break; |
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case VME_AM_A24: |
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ctl = 0x00010000; |
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break; |
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case VME_AM_A32: |
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ctl = 0x00020000; |
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break; |
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} |
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switch (vam & VME_AM_Mxx) { |
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case VME_AM_DATA: |
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ctl |= 0x00000000; |
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break; |
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case VME_AM_PROG: |
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ctl |= 0x00800000; |
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break; |
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} |
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if (vam & VME_AM_SUP) { |
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ctl |= 0x00100000; |
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} |
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switch (pms & PCI_MS_Mxx) { |
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case PCI_MS_MEM: |
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ctl = 0x00000000; |
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break; |
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case PCI_MS_IO: |
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ctl = 0x00000001; |
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break; |
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case PCI_MS_CONFIG: |
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ctl = 0x00000002; |
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break; |
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} |
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ctl |= 0x80f00000; /* enable */ |
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writel(ctl, &dev->uregs->vsi[i].ctl); |
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UNI_DBG(("universe: window-addr=%p\n", &dev->uregs->vsi[i].ctl)); |
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UNI_DBG(("universe: vme slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->vsi[i].ctl))); |
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UNI_DBG(("universe: vme slave window[%d] bs=%08x\n", i, readl(&dev->uregs->vsi[i].bs))); |
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UNI_DBG(("universe: vme slave window[%d] bd=%08x\n", i, readl(&dev->uregs->vsi[i].bd))); |
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UNI_DBG(("universe: vme slave window[%d] to=%08x\n", i, readl(&dev->uregs->vsi[i].to))); |
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return 0; |
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exit_10: |
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return -result; |
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} |
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/*
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* Tundra Universe configuration |
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*/ |
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int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
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{ |
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ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, pms = 0, vdw = 0; |
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char cmd = 'x'; |
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/* get parameter */ |
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if (argc > 1) |
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cmd = argv[1][0]; |
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if (argc > 2) |
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addr1 = simple_strtoul(argv[2], NULL, 16); |
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if (argc > 3) |
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addr2 = simple_strtoul(argv[3], NULL, 16); |
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if (argc > 4) |
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size = simple_strtoul(argv[4], NULL, 16); |
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if (argc > 5) |
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vam = simple_strtoul(argv[5], NULL, 16); |
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if (argc > 6) |
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pms = simple_strtoul(argv[6], NULL, 16); |
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if (argc > 7) |
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vdw = simple_strtoul(argv[7], NULL, 16); |
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switch (cmd) { |
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case 'i': /* init */ |
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universe_init(); |
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break; |
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case 'v': /* vme */ |
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printf("Configuring Universe VME Slave Window (VME->PCI):\n"); |
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printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx\n", |
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addr1, addr2, size, vam, pms); |
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universe_vme_slave_window(addr1, addr2, size, vam, pms); |
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break; |
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case 'p': /* pci */ |
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printf("Configuring Universe PCI Slave Window (PCI->VME):\n"); |
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printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx\n", |
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addr1, addr2, size, vam, pms, vdw); |
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universe_pci_slave_window(addr1, addr2, size, vam, pms, vdw); |
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break; |
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default: |
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printf("Universe command %s not supported!\n", argv[1]); |
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} |
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return 0; |
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} |
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U_BOOT_CMD( |
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universe, 8, 1, do_universe, |
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"universe- initialize and configure Turndra Universe\n", |
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"init\n" |
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" - initialize universe\n" |
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"universe vme [vme_addr] [pci_addr] [size] [vam] [pms]\n" |
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" - create vme slave window (access: vme->pci)\n" |
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"universe pci [pci_addr] [vme_addr] [size] [vam] [pms] [vdw]\n" |
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" - create pci slave window (access: pci->vme)\n" |
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" [vam] = VMEbus Address-Modifier: 01 -> A16 Address Space\n" |
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" 02 -> A24 Address Space\n" |
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" 03 -> A32 Address Space\n" |
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" 04 -> Supervisor AM Code\n" |
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" 10 -> Data AM Code\n" |
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" 20 -> Program AM Code\n" |
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" [pms] = PCI Memory Space: 01 -> Memory Space\n" |
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" 02 -> I/O Space\n" |
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" 03 -> Configuration Space\n" |
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" [vdw] = VMEbus Maximum Datawidth: 01 -> D8 Data Width\n" |
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" 02 -> D16 Data Width\n" |
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" 03 -> D32 Data Width\n" |
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); |
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#endif /* (CONFIG_COMMANDS & CFG_CMD_UNIVERSE) */ |
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@ -0,0 +1,157 @@ |
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/*
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* (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#ifndef _universe_h |
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#define _universe_h |
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typedef struct _UNIVERSE UNIVERSE; |
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typedef struct _SLAVE_IMAGE SLAVE_IMAGE; |
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typedef struct _TDMA_CMD_PACKET TDMA_CMD_PACKET; |
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struct _SLAVE_IMAGE { |
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unsigned int ctl; /* Control */ |
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unsigned int bs; /* Base */ |
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unsigned int bd; /* Bound */ |
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unsigned int to; /* Translation */ |
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unsigned int reserved; |
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}; |
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struct _UNIVERSE { |
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unsigned int pci_id; |
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unsigned int pci_csr; |
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unsigned int pci_class; |
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unsigned int pci_misc0; |
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unsigned int pci_bs; |
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unsigned int spare0[10]; |
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unsigned int pci_misc1; |
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unsigned int spare1[48]; |
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SLAVE_IMAGE lsi[4]; |
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unsigned int spare2[8]; |
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unsigned int scyc_ctl; |
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unsigned int scyc_addr; |
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unsigned int scyc_en; |
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unsigned int scyc_cmp; |
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unsigned int scyc_swp; |
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unsigned int lmisc; |
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unsigned int slsi; |
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unsigned int l_cmderr; |
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unsigned int laerr; |
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unsigned int spare3[27]; |
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unsigned int dctl; |
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unsigned int dtbc; |
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unsigned int dla; |
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unsigned int spare4[1]; |
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unsigned int dva; |
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unsigned int spare5[1]; |
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unsigned int dcpp; |
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unsigned int spare6[1]; |
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unsigned int dgcs; |
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unsigned int d_llue; |
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unsigned int spare7[54]; |
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unsigned int lint_en; |
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unsigned int lint_stat; |
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unsigned int lint_map0; |
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unsigned int lint_map1; |
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unsigned int vint_en; |
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unsigned int vint_stat; |
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unsigned int vint_map0; |
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unsigned int vint_map1; |
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unsigned int statid; |
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unsigned int vx_statid[7]; |
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unsigned int spare8[48]; |
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unsigned int mast_ctl; |
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unsigned int misc_ctl; |
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unsigned int misc_stat; |
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unsigned int user_am; |
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unsigned int spare9[700]; |
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SLAVE_IMAGE vsi[4]; |
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unsigned int spare10[8]; |
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unsigned int vrai_ctl; |
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unsigned int vrai_bs; |
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unsigned int spare11[2]; |
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unsigned int vcsr_ctl; |
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unsigned int vcsr_to; |
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unsigned int v_amerr; |
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unsigned int vaerr; |
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unsigned int spare12[25]; |
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unsigned int vcsr_clr; |
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unsigned int vcsr_set; |
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unsigned int vcsr_bs; |
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}; |
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#define IRQ_VOWN 0x0001 |
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#define IRQ_VIRQ1 0x0002 |
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#define IRQ_VIRQ2 0x0004 |
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#define IRQ_VIRQ3 0x0008 |
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#define IRQ_VIRQ4 0x0010 |
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#define IRQ_VIRQ5 0x0020 |
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#define IRQ_VIRQ6 0x0040 |
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#define IRQ_VIRQ7 0x0080 |
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#define IRQ_DMA 0x0100 |
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#define IRQ_LERR 0x0200 |
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#define IRQ_VERR 0x0400 |
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#define IRQ_res 0x0800 |
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#define IRQ_IACK 0x1000 |
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#define IRQ_SWINT 0x2000 |
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#define IRQ_SYSFAIL 0x4000 |
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#define IRQ_ACFAIL 0x8000 |
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struct _TDMA_CMD_PACKET { |
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unsigned int dctl; /* DMA Control */ |
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unsigned int dtbc; /* Transfer Byte Count */ |
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unsigned int dlv; /* PCI Address */ |
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unsigned int res1; /* Reserved */ |
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unsigned int dva; /* Vme Address */ |
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unsigned int res2; /* Reserved */ |
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unsigned int dcpp; /* Pointer to Numed Cmd Packet with rPN */ |
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unsigned int res3; /* Reserved */ |
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}; |
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#define VME_AM_A16 0x01 |
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#define VME_AM_A24 0x02 |
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#define VME_AM_A32 0x03 |
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#define VME_AM_Axx 0x03 |
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#define VME_AM_SUP 0x04 |
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#define VME_AM_DATA 0x10 |
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#define VME_AM_PROG 0x20 |
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#define VME_AM_Mxx 0x30 |
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|
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#define VME_FLAG_D8 0x01 |
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#define VME_FLAG_D16 0x02 |
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#define VME_FLAG_D32 0x03 |
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#define VME_FLAG_Dxx 0x03 |
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#define PCI_MS_MEM 0x01 |
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#define PCI_MS_IO 0x02 |
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#define PCI_MS_CONFIG 0x03 |
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#define PCI_MS_Mxx 0x03 |
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#endif |
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Reference in new issue