Commit 256e4be8 authored by stroese's avatar stroese
Browse files

Tundra universe support added

parent bcd0be5c
/*
* (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <malloc.h>
#include <asm/io.h>
#include <pci.h>
#include <universe.h>
#if (CONFIG_COMMANDS & CFG_CMD_UNIVERSE)
#undef DBG
#ifdef DBG
# define UNI_DBG(fmt) printf fmt
#else
# define UNI_DBG(fmt)
#endif
#define UNI_PRINT(fmt) printf fmt
#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, lastError = 0;
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);
val &= ~0xf;
dev->uregs = (UNIVERSE *)val;
UNI_DBG(("UNIVERSE-Base : %p\n", dev->uregs));
/* check mapping */
UNI_DBG((" Read via mapping, PCI_ID = %08X\n", readl(&dev->uregs->pci_id)));
if (((PCI_DEVICE <<16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) {
UNI_PRINT(("UNIVERSE: Cannot read PCI-ID via Mapping: %08x\n",
readl(&dev->uregs->pci_id)));
result = -1;
goto break_30;
}
UNI_DBG(("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(0x15060000, &dev->uregs->misc_ctl);
/*
* 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();
break_30:
free(dev);
break_20:
lastError = result;
return 0;
}
/*
* 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) {
UNI_PRINT(("universe: No Image available\n"));
result = -1;
goto exit_10;
}
UNI_DBG(("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);
UNI_DBG(("universe: window-addr=%p\n", &dev->uregs->lsi[i].ctl));
UNI_DBG(("universe: pci slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->lsi[i].ctl)));
UNI_DBG(("universe: pci slave window[%d] bs=%08x\n", i, readl(&dev->uregs->lsi[i].bs)));
UNI_DBG(("universe: pci slave window[%d] bd=%08x\n", i, readl(&dev->uregs->lsi[i].bd)));
UNI_DBG(("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) {
UNI_PRINT(("universe: No Image available\n"));
result = -1;
goto exit_10;
}
UNI_DBG(("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);
UNI_DBG(("universe: window-addr=%p\n", &dev->uregs->vsi[i].ctl));
UNI_DBG(("universe: vme slave window[%d] ctl=%08x\n", i, readl(&dev->uregs->vsi[i].ctl)));
UNI_DBG(("universe: vme slave window[%d] bs=%08x\n", i, readl(&dev->uregs->vsi[i].bs)));
UNI_DBG(("universe: vme slave window[%d] bd=%08x\n", i, readl(&dev->uregs->vsi[i].bd)));
UNI_DBG(("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(cmd_tbl_t *cmdtp, int flag, int argc, char *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 = simple_strtoul(argv[2], NULL, 16);
if (argc > 3)
addr2 = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
size = simple_strtoul(argv[4], NULL, 16);
if (argc > 5)
vam = simple_strtoul(argv[5], NULL, 16);
if (argc > 6)
pms = simple_strtoul(argv[6], NULL, 16);
if (argc > 7)
vdw = simple_strtoul(argv[7], NULL, 16);
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,
"universe- initialize and configure Turndra Universe\n",
"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\n"
);
#endif /* (CONFIG_COMMANDS & CFG_CMD_UNIVERSE) */
/*
* (C) Copyright 2003 Stefan Roese, stefan.roese@esd-electronics.com
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _universe_h
#define _universe_h
typedef struct _UNIVERSE UNIVERSE;
typedef struct _SLAVE_IMAGE SLAVE_IMAGE;
typedef struct _TDMA_CMD_PACKET TDMA_CMD_PACKET;
struct _SLAVE_IMAGE {
unsigned int ctl; /* Control */
unsigned int bs; /* Base */
unsigned int bd; /* Bound */
unsigned int to; /* Translation */
unsigned int reserved;
};
struct _UNIVERSE {
unsigned int pci_id;
unsigned int pci_csr;
unsigned int pci_class;
unsigned int pci_misc0;
unsigned int pci_bs;
unsigned int spare0[10];
unsigned int pci_misc1;
unsigned int spare1[48];
SLAVE_IMAGE lsi[4];
unsigned int spare2[8];
unsigned int scyc_ctl;
unsigned int scyc_addr;
unsigned int scyc_en;
unsigned int scyc_cmp;
unsigned int scyc_swp;
unsigned int lmisc;
unsigned int slsi;
unsigned int l_cmderr;
unsigned int laerr;
unsigned int spare3[27];
unsigned int dctl;
unsigned int dtbc;
unsigned int dla;
unsigned int spare4[1];
unsigned int dva;
unsigned int spare5[1];
unsigned int dcpp;
unsigned int spare6[1];
unsigned int dgcs;
unsigned int d_llue;
unsigned int spare7[54];
unsigned int lint_en;
unsigned int lint_stat;
unsigned int lint_map0;
unsigned int lint_map1;
unsigned int vint_en;
unsigned int vint_stat;
unsigned int vint_map0;
unsigned int vint_map1;
unsigned int statid;
unsigned int vx_statid[7];
unsigned int spare8[48];
unsigned int mast_ctl;
unsigned int misc_ctl;
unsigned int misc_stat;
unsigned int user_am;
unsigned int spare9[700];
SLAVE_IMAGE vsi[4];
unsigned int spare10[8];
unsigned int vrai_ctl;
unsigned int vrai_bs;
unsigned int spare11[2];
unsigned int vcsr_ctl;
unsigned int vcsr_to;
unsigned int v_amerr;
unsigned int vaerr;
unsigned int spare12[25];
unsigned int vcsr_clr;
unsigned int vcsr_set;
unsigned int vcsr_bs;
};
#define IRQ_VOWN 0x0001
#define IRQ_VIRQ1 0x0002
#define IRQ_VIRQ2 0x0004
#define IRQ_VIRQ3 0x0008
#define IRQ_VIRQ4 0x0010
#define IRQ_VIRQ5 0x0020
#define IRQ_VIRQ6 0x0040
#define IRQ_VIRQ7 0x0080
#define IRQ_DMA 0x0100
#define IRQ_LERR 0x0200
#define IRQ_VERR 0x0400
#define IRQ_res 0x0800
#define IRQ_IACK 0x1000
#define IRQ_SWINT 0x2000
#define IRQ_SYSFAIL 0x4000
#define IRQ_ACFAIL 0x8000
struct _TDMA_CMD_PACKET {
unsigned int dctl; /* DMA Control */
unsigned int dtbc; /* Transfer Byte Count */
unsigned int dlv; /* PCI Address */
unsigned int res1; /* Reserved */
unsigned int dva; /* Vme Address */
unsigned int res2; /* Reserved */
unsigned int dcpp; /* Pointer to Numed Cmd Packet with rPN */
unsigned int res3; /* Reserved */
};
#define VME_AM_A16 0x01
#define VME_AM_A24 0x02
#define VME_AM_A32 0x03
#define VME_AM_Axx 0x03
#define VME_AM_SUP 0x04
#define VME_AM_DATA 0x10
#define VME_AM_PROG 0x20
#define VME_AM_Mxx 0x30
#define VME_FLAG_D8 0x01
#define VME_FLAG_D16 0x02
#define VME_FLAG_D32 0x03
#define VME_FLAG_Dxx 0x03
#define PCI_MS_MEM 0x01
#define PCI_MS_IO 0x02
#define PCI_MS_CONFIG 0x03
#define PCI_MS_Mxx 0x03
#endif
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment