externC void
hal_ppc405_pci_translate_interrupt(int bus, int devfn, int *vec, int *valid)
{
cyg_uint8 req;
cyg_uint8 dev = CYG_PCI_DEV_GET_DEV(devfn);
if ((dev >= CYG_PCI_MIN_DEV) && (dev < CYG_PCI_MAX_DEV)) {
HAL_PCI_CFG_READ_UINT8(bus, devfn, CYG_PCI_CFG_INT_PIN, req);
if (0 != req) {
#ifdef CYG_PCI_IRQ_MAP
char pci_irq_table[][4] = CYG_PCI_IRQ_MAP;
#else
#error "Need platform defined IRQ map"
#endif
*vec = pci_irq_table[dev-CYG_PCI_MIN_DEV][req-1];
*valid = (*vec != -1);
} else {
/* Device will not generate interrupt requests. */
*valid = false;
}
#if defined(CYGPKG_IO_PCI_DEBUG)
diag_printf("Int - dev: %d, req: %d, vector: %d\n", dev, req, *vec);
#endif
} else {
*valid = false; // Invalid device
}
}
externC void
_mb93091_pci_cfg_write_uint32(int bus, int devfn, int offset, cyg_uint32 cfg_val)
{
cyg_uint32 cfg_addr, addr, status;
if (!_mb93091_has_vdk)
return;
#ifdef CYGPKG_IO_PCI_DEBUG
diag_printf("%s(bus=%x, devfn=%x, offset=%x, val=%x)\n", __FUNCTION__, bus, devfn, offset, cfg_val);
#endif // CYGPKG_IO_PCI_DEBUG
if ((bus == 0) && (CYG_PCI_DEV_GET_DEV(devfn) == 0)) {
// PCI bridge
addr = _MB93091_PCI_CONFIG + (offset << 1);
} else {
cfg_addr = _cfg_addr(bus, devfn, offset);
HAL_WRITE_UINT32(_MB93091_PCI_CONFIG_ADDR, cfg_addr);
addr = _MB93091_PCI_CONFIG_DATA;
}
HAL_WRITE_UINT32(addr, cfg_val);
HAL_READ_UINT16(_MB93091_PCI_STAT_CMD, status);
if (status & _MB93091_PCI_STAT_ERROR_MASK) {
// Cycle failed - clean up and get out
HAL_WRITE_UINT16(_MB93091_PCI_STAT_CMD, status & _MB93091_PCI_STAT_ERROR_MASK);
}
HAL_WRITE_UINT32(_MB93091_PCI_CONFIG_ADDR, 0);
}
static void
do_lspci(int argc, char *argv[])
{
cyg_uint8 devfn;
cyg_pci_device_id devid = CYG_PCI_NULL_DEVID;
cyg_pci_device dev_info;
int i;
while (cyg_pci_find_next(devid, &devid)) {
devfn = CYG_PCI_DEV_GET_DEVFN(devid);
// Get the device info
cyg_pci_get_device_info(devid, &dev_info);
diag_printf("%d:%d:%d ",
CYG_PCI_DEV_GET_BUS(devid),
CYG_PCI_DEV_GET_DEV(devfn),
CYG_PCI_DEV_GET_FN(devfn));
diag_printf("Vendor[%04x] Device[%04x] Type[%02x] Class[%06x]\n",
dev_info.vendor,
dev_info.device,
dev_info.header_type,
(dev_info.class_rev >> 8) & 0xffffff);
if (dev_info.command & CYG_PCI_CFG_COMMAND_ACTIVE) {
// dump bars
for (i = 0; i < CYG_PCI_MAX_BAR; i++)
if (dev_info.base_address[i])
diag_printf(" BAR%d: %08x\n", i, dev_info.base_address[i]);
}
}
}
externC cyg_uint16
_mb93091_pci_cfg_read_uint16(int bus, int devfn, int offset)
{
cyg_uint32 cfg_addr, addr, status;
cyg_uint16 cfg_val = (cyg_uint16)0xFFFF;
if (!_mb93091_has_vdk)
return cfg_val;
#ifdef CYGPKG_IO_PCI_DEBUG
diag_printf("%s(bus=%x, devfn=%x, offset=%x) = ", __FUNCTION__, bus, devfn, offset);
#endif // CYGPKG_IO_PCI_DEBUG
if ((bus == 0) && (CYG_PCI_DEV_GET_DEV(devfn) == 0)) {
// PCI bridge
addr = _MB93091_PCI_CONFIG + ((offset << 1) ^ 0x02);
} else {
cfg_addr = _cfg_addr(bus, devfn, offset ^ 0x02);
HAL_WRITE_UINT32(_MB93091_PCI_CONFIG_ADDR, cfg_addr);
addr = _MB93091_PCI_CONFIG_DATA + ((offset & 0x03) ^ 0x02);
}
HAL_READ_UINT16(addr, cfg_val);
HAL_READ_UINT16(_MB93091_PCI_STAT_CMD, status);
if (status & _MB93091_PCI_STAT_ERROR_MASK) {
// Cycle failed - clean up and get out
cfg_val = (cyg_uint16)0xFFFF;
HAL_WRITE_UINT16(_MB93091_PCI_STAT_CMD, status & _MB93091_PCI_STAT_ERROR_MASK);
}
#ifdef CYGPKG_IO_PCI_DEBUG
diag_printf("%x\n", cfg_val);
#endif // CYGPKG_IO_PCI_DEBUG
HAL_WRITE_UINT32(_MB93091_PCI_CONFIG_ADDR, 0);
return cfg_val;
}
static inline cyg_uint32 *pci_config_setup(cyg_uint32 bus,
cyg_uint32 devfn,
cyg_uint32 offset)
{
cyg_uint32 *pdata, *paddr;
cyg_uint32 dev = CYG_PCI_DEV_GET_DEV(devfn);
cyg_uint32 fn = CYG_PCI_DEV_GET_FN(devfn);
if (bus == 0) {
paddr = (cyg_uint32 *)POCCAR_ADDR;
pdata = (cyg_uint32 *)POCCDR_ADDR;
} else {
paddr = (cyg_uint32 *)SOCCAR_ADDR;
pdata = (cyg_uint32 *)SOCCDR_ADDR;
}
/* Offsets must be dword-aligned */
offset &= ~3;
/* Primary or secondary bus use type 0 config */
/* all others use type 1 config */
if (bus == pbus_nr || bus == sbus_nr)
*paddr = ( (1 << (dev + 16)) | (fn << 8) | offset | 0 );
else
*paddr = ( (bus << 16) | (dev << 11) | (fn << 8) | offset | 1 );
orig_abort_vec = ((volatile cyg_uint32 *)0x20)[4];
((volatile unsigned *)0x20)[4] = (unsigned)__pci_abort_handler;
HAL_ICACHE_SYNC();
return pdata;
}
//
// Prepare for a config cycle on the PCI bus
//
static __inline__ cyg_uint32
_cfg_sel(int bus, int devfn, int offset)
{
cyg_uint32 cfg_addr, addr;
cyg_uint32 bcsr;
HAL_READ_UINT32(_CSB281_BCSR, bcsr);
bcsr = (bcsr & ~0x07) | (1<<(CYG_PCI_DEV_GET_DEV(devfn)-CYG_PCI_MIN_DEV));
HAL_WRITE_UINT32(_CSB281_BCSR, bcsr);
cfg_addr = _EXT_ENABLE |
(bus << 16) |
(CYG_PCI_DEV_GET_DEV(devfn) << 11) |
(CYG_PCI_DEV_GET_FN(devfn) << 8) |
((offset & 0xFF) << 0);
HAL_WRITE_UINT32LE(_CSB281_PCI_CONFIG_ADDR, cfg_addr);
addr = _CSB281_PCI_CONFIG_DATA + (offset & 0x03);
return addr;
}
void
cyg_hal_plf_pci_translate_interrupt(cyg_uint32 bus, cyg_uint32 devfn,
CYG_ADDRWORD *vec, cyg_bool *valid)
{
cyg_uint8 pin;
cyg_uint32 slot = 3 - (CYG_PCI_DEV_GET_DEV(devfn) - 18);
HAL_PCI_CFG_READ_UINT8(bus, devfn, CYG_PCI_CFG_INT_PIN, pin);
*vec = -1;
*valid = false;
if (slot < IXP425_PCI_MAX_DEV && pin <= IXP425_PCI_IRQ_LINES) {
*vec = pci_irq_table[slot][pin-1];
*valid = true;
}
}
externC void
_mb93091_pci_translate_interrupt(int bus, int devfn, int *vec, int *valid)
{
cyg_uint8 req;
cyg_uint8 dev = CYG_PCI_DEV_GET_DEV(devfn);
if (dev == CYG_PCI_MIN_DEV) {
// On board LAN
*vec = CYGNUM_HAL_INTERRUPT_LAN;
*valid = true;
} else {
HAL_PCI_CFG_READ_UINT8(bus, devfn, CYG_PCI_CFG_INT_PIN, req);
if (0 != req) {
CYG_ADDRWORD __translation[4] = {
CYGNUM_HAL_INTERRUPT_PCIINTC, /* INTC# */
CYGNUM_HAL_INTERRUPT_PCIINTB, /* INTB# */
CYGNUM_HAL_INTERRUPT_PCIINTA, /* INTA# */
CYGNUM_HAL_INTERRUPT_PCIINTD}; /* INTD# */
/* The PCI lines from the different slots are wired like this */
/* on the PCI backplane: */
/* pin6A pin7B pin7A pin8B */
/* I/O Slot 1 INTA# INTB# INTC# INTD# */
/* I/O Slot 2 INTD# INTA# INTB# INTC# */
/* I/O Slot 3 INTC# INTD# INTA# INTB# */
/* */
/* (From PCI Development Backplane, 3.2.2 Interrupts) */
/* */
/* Devsel signals are wired to, resulting in device IDs: */
/* I/O Slot 1 AD30 / dev 19 [(8+1)&3 = 1] */
/* I/O Slot 2 AD29 / dev 18 [(7+1)&3 = 0] */
/* I/O Slot 3 AD28 / dev 17 [(6+1)&3 = 3] */
*vec = __translation[((req+dev)&3)];
*valid = true;
} else {
/* Device will not generate interrupt requests. */
*valid = false;
}
diag_printf("Int - dev: %d, req: %d, vector: %d\n", dev, req, *vec);
}
}
externC void
_csb281_pci_translate_interrupt(int bus, int devfn, int *vec, int *valid)
{
cyg_uint8 dev = CYG_PCI_DEV_GET_DEV(devfn);
// Purely slot based
if (dev >= CYG_PCI_MIN_DEV) {
CYG_ADDRWORD __translation[] = {
CYGNUM_HAL_INTERRUPT_PCI0,
CYGNUM_HAL_INTERRUPT_PCI1,
CYGNUM_HAL_INTERRUPT_LAN
};
*vec = __translation[dev-CYG_PCI_MIN_DEV];
*valid = true;
} else {
*valid = false;
}
#if 0
diag_printf("Int - dev: %d, vector: %d [%s]\n",
dev, *vec, *valid ? "OK" : "BAD");
#endif
}
externC void
hal_ppc405_pci_init(void)
{
static int _init = 0;
cyg_uint8 next_bus;
cyg_uint32 cmd_state, bridge_state;
if (_init) return;
_init = 1;
// Configure PCI bridge
HAL_WRITE_UINT32LE(PCIL0_PMM0PCILA, 0);
HAL_WRITE_UINT32LE(PCIL0_PMM0PCIHA, 0);
HAL_WRITE_UINT32LE(PCIL0_PMM0LA, HAL_PCI_PHYSICAL_MEMORY_BASE);
HAL_WRITE_UINT32LE(PCIL0_PMM0MA, ~(0x10000000-1) | 0x00000001);
HAL_PCI_CFG_WRITE_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0), CYG_PCI_CFG_BAR_1, 0);
HAL_WRITE_UINT32LE(PCIL0_PTM1LA, 0);
HAL_WRITE_UINT32LE(PCIL0_PTM1MS, ~(0x10000000-1) | 0x00000001);
// Indicate that the bridge has been configured
HAL_PCI_CFG_READ_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0), 0x60, bridge_state);
bridge_state |= 0x0001;
HAL_PCI_CFG_WRITE_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0), 0x60, bridge_state);
// Setup for bus mastering
HAL_PCI_CFG_READ_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0),
CYG_PCI_CFG_COMMAND, cmd_state);
cyg_pci_init();
if ((cmd_state & CYG_PCI_CFG_COMMAND_MEMORY) == 0) {
#if defined(CYGPKG_IO_PCI_DEBUG)
diag_printf("Configure PCI bus\n");
#endif
HAL_PCI_CFG_WRITE_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0),
CYG_PCI_CFG_COMMAND,
CYG_PCI_CFG_COMMAND_MEMORY |
CYG_PCI_CFG_COMMAND_MASTER |
CYG_PCI_CFG_COMMAND_PARITY |
CYG_PCI_CFG_COMMAND_SERR);
// Setup latency timer field
HAL_PCI_CFG_WRITE_UINT8(0, CYG_PCI_DEV_MAKE_DEVFN(0,0),
CYG_PCI_CFG_LATENCY_TIMER, 32);
// Configure PCI bus.
next_bus = 1;
cyg_pci_configure_bus(0, &next_bus);
}
#if defined(CYGSEM_HAL_POWERPC_PPC405_PCI_SHOW_BUS)
if (1) {
cyg_uint8 req;
cyg_uint8 devfn;
cyg_pci_device_id devid;
cyg_pci_device dev_info;
int i;
devid = CYG_PCI_DEV_MAKE_ID(next_bus-1, 0) | CYG_PCI_NULL_DEVFN;
while (cyg_pci_find_next(devid, &devid)) {
devfn = CYG_PCI_DEV_GET_DEVFN(devid);
cyg_pci_get_device_info(devid, &dev_info);
HAL_PCI_CFG_READ_UINT8(0, devfn, CYG_PCI_CFG_INT_PIN, req);
diag_printf("\n");
diag_printf("Bus: %d", CYG_PCI_DEV_GET_BUS(devid));
diag_printf(", PCI Device: %d", CYG_PCI_DEV_GET_DEV(devfn));
diag_printf(", PCI Func: %d\n", CYG_PCI_DEV_GET_FN(devfn));
diag_printf(" Vendor Id: 0x%04X", dev_info.vendor);
diag_printf(", Device Id: 0x%04X", dev_info.device);
diag_printf(", Command: 0x%04X", dev_info.command);
diag_printf(", IRQ: %d\n", req);
for (i = 0; i < dev_info.num_bars; i++) {
diag_printf(" BAR[%d] 0x%08x /", i, dev_info.base_address[i]);
diag_printf(" probed size 0x%08x / CPU addr 0x%08x\n",
dev_info.base_size[i], dev_info.base_map[i]);
}
}
}
#endif
}
externC void
_csb281_pci_init(void)
{
static int _init = 0;
cyg_uint8 next_bus;
cyg_uint32 cmd_state;
if (_init) return;
_init = 1;
// Initialize PCI support
cyg_pci_init();
// Setup for bus mastering
HAL_PCI_CFG_READ_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0),
CYG_PCI_CFG_COMMAND, cmd_state);
if ((cmd_state & CYG_PCI_CFG_COMMAND_MEMORY) == 0) {
// Force PCI-side window to 0
HAL_PCI_CFG_WRITE_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0),
CYG_PCI_CFG_BAR_0, 0x01);
// Enable bus mastering from host
HAL_PCI_CFG_WRITE_UINT32(0, CYG_PCI_DEV_MAKE_DEVFN(0,0),
CYG_PCI_CFG_COMMAND,
CYG_PCI_CFG_COMMAND_MEMORY |
CYG_PCI_CFG_COMMAND_MASTER |
CYG_PCI_CFG_COMMAND_PARITY |
CYG_PCI_CFG_COMMAND_SERR);
// Setup latency timer field
HAL_PCI_CFG_WRITE_UINT8(0, CYG_PCI_DEV_MAKE_DEVFN(0,0),
CYG_PCI_CFG_LATENCY_TIMER, 32);
// Configure PCI bus.
next_bus = 1;
cyg_pci_configure_bus(0, &next_bus);
}
if (0){
cyg_uint8 devfn;
cyg_pci_device_id devid;
cyg_pci_device dev_info;
int i;
devid = CYG_PCI_DEV_MAKE_ID(next_bus-1, 0) | CYG_PCI_NULL_DEVFN;
while (cyg_pci_find_next(devid, &devid)) {
devfn = CYG_PCI_DEV_GET_DEVFN(devid);
cyg_pci_get_device_info(devid, &dev_info);
diag_printf("\n");
diag_printf("Bus: %d\n", CYG_PCI_DEV_GET_BUS(devid));
diag_printf("PCI Device: %d\n", CYG_PCI_DEV_GET_DEV(devfn));
diag_printf("PCI Func : %d\n", CYG_PCI_DEV_GET_FN(devfn));
diag_printf("Vendor Id : 0x%08X\n", dev_info.vendor);
diag_printf("Device Id : 0x%08X\n", dev_info.device);
for (i = 0; i < dev_info.num_bars; i++) {
diag_printf(" BAR[%d] 0x%08x /", i, dev_info.base_address[i]);
diag_printf(" probed size 0x%08x / CPU addr 0x%08x\n",
dev_info.base_size[i], dev_info.base_map[i]);
}
}
}
// Configure interrupts (high level)?
HAL_INTERRUPT_CONFIGURE(CYGNUM_HAL_INTERRUPT_PCI0, 1, 1);
HAL_INTERRUPT_CONFIGURE(CYGNUM_HAL_INTERRUPT_PCI1, 1, 1);
HAL_INTERRUPT_CONFIGURE(CYGNUM_HAL_INTERRUPT_LAN, 1, 1);
}