source: rtems/bsps/sparc/shared/pci/gr_rasta_spw_router.c @ 75e1009f

/*  GR-RASTA-SPW-ROUTER PCI Target driver.
 * 
 *  COPYRIGHT (c) 2011.
 *  Cobham Gaisler AB.
 *
 *  The license and distribution terms for this file may be
 *  found in found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 *
 *  Configures the GR-RASTA-SPW-ROUTER interface PCI board.
 *  This driver provides a AMBA PnP bus by using the general part
 *  of the AMBA PnP bus driver (ambapp_bus.c). Based on the 
 *  GR-RASTA-IO driver.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>

#include <bsp.h>
#include <rtems/bspIo.h>
#include <pci.h>

#include <ambapp.h>
#include <grlib.h>
#include <drvmgr/drvmgr.h>
#include <drvmgr/ambapp_bus.h>
#include <drvmgr/pci_bus.h>
#include <drvmgr/bspcommon.h>
#include <bsp/genirq.h>
#include <bsp/gr_rasta_spw_router.h>

#include <grlib_impl.h>

/* Determines which PCI address the AHB masters will access, it should be
 * set so that the masters can access the CPU RAM. Default is base of CPU RAM,
 * CPU RAM is mapped 1:1 to PCI space.
 */
extern unsigned int _RAM_START;
#define AHBMST2PCIADR (((unsigned int)&_RAM_START) & 0xf0000000)

/* Offset from 0x80000000 (dual bus version) */
#define AHB1_BASE_ADDR 0x80000000
#define AHB1_IOAREA_BASE_ADDR 0x80100000

#define GRPCI2_BAR0_TO_AHB_MAP 0x04  /* Fixme */
#define GRPCI2_PCI_CONFIG      0x20  /* Fixme */

/* #define DEBUG 1 */

#ifdef DEBUG
#define DBG(x...) printk(x)
#else
#define DBG(x...) 
#endif

/* PCI ID */
#define PCIID_VENDOR_GAISLER            0x1AC8

int gr_rasta_spw_router_init1(struct drvmgr_dev *dev);
int gr_rasta_spw_router_init2(struct drvmgr_dev *dev);
void gr_rasta_spw_router_isr(void *arg);

struct grpci2_regs {
        volatile unsigned int ctrl;
        volatile unsigned int statcap;
        volatile unsigned int pcimstprefetch;
        volatile unsigned int ahbtopciiomap;
        volatile unsigned int dmactrl;
        volatile unsigned int dmadesc;
        volatile unsigned int dmachanact;
        volatile unsigned int reserved;
        volatile unsigned int pcibartoahb[6];
        volatile unsigned int reserved2[2];
        volatile unsigned int ahbtopcimemmap[16];
        volatile unsigned int trcctrl;
        volatile unsigned int trccntmode;
        volatile unsigned int trcadpat;
        volatile unsigned int trcadmask;
        volatile unsigned int trcctrlsigpat;
        volatile unsigned int trcctrlsigmask;
        volatile unsigned int trcadstate;
        volatile unsigned int trcctrlsigstate;
};

struct gr_rasta_spw_router_ver {
        const unsigned int      amba_freq_hz;   /* The frequency */
        const unsigned int      amba_ioarea;    /* The address where the PnP IOAREA starts at */
};

/* Private data structure for driver */
struct gr_rasta_spw_router_priv {
        /* Driver management */
        struct drvmgr_dev       *dev;
        char                    prefix[20];
        SPIN_DECLARE(devlock);

        /* PCI */
        pci_dev_t               pcidev;
        struct pci_dev_info     *devinfo;
        uint32_t                ahbmst2pci_map;

        /* IRQ */
        genirq_t                genirq;

        /* GR-RASTA-SPW-ROUTER */
        struct gr_rasta_spw_router_ver  *version;
        struct irqmp_regs       *irq;
        struct grpci2_regs      *grpci2;
        struct drvmgr_map_entry bus_maps_up[2];
        struct drvmgr_map_entry bus_maps_down[2];

        /* AMBA Plug&Play information on GR-RASTA-SPW-ROUTER */
        struct ambapp_bus       abus;
        struct ambapp_mmap      amba_maps[3];
        struct ambapp_config    config;
};

struct gr_rasta_spw_router_ver gr_rasta_spw_router_ver0 = {
        .amba_freq_hz           = 50000000,
        .amba_ioarea            = 0xfff00000,
};

int ambapp_rasta_spw_router_int_register(
        struct drvmgr_dev *dev,
        int irq,
        const char *info,
        drvmgr_isr handler,
        void *arg);
int ambapp_rasta_spw_router_int_unregister(
        struct drvmgr_dev *dev,
        int irq,
        drvmgr_isr handler,
        void *arg);
int ambapp_rasta_spw_router_int_unmask(
        struct drvmgr_dev *dev,
        int irq);
int ambapp_rasta_spw_router_int_mask(
        struct drvmgr_dev *dev,
        int irq);
int ambapp_rasta_spw_router_int_clear(
        struct drvmgr_dev *dev,
        int irq);
int ambapp_rasta_spw_router_get_params(
        struct drvmgr_dev *dev,
        struct drvmgr_bus_params *params);

struct ambapp_ops ambapp_rasta_spw_router_ops = {
        .int_register = ambapp_rasta_spw_router_int_register,
        .int_unregister = ambapp_rasta_spw_router_int_unregister,
        .int_unmask = ambapp_rasta_spw_router_int_unmask,
        .int_mask = ambapp_rasta_spw_router_int_mask,
        .int_clear = ambapp_rasta_spw_router_int_clear,
        .get_params = ambapp_rasta_spw_router_get_params
};

struct drvmgr_drv_ops gr_rasta_spw_router_ops = 
{
        .init = {gr_rasta_spw_router_init1, gr_rasta_spw_router_init2, NULL, NULL},
        .remove = NULL,
        .info = NULL
};

struct pci_dev_id_match gr_rasta_spw_router_ids[] =
{
        PCIID_DEVVEND(PCIID_VENDOR_GAISLER, PCIID_DEVICE_GR_RASTA_SPW_RTR),
        PCIID_END_TABLE /* Mark end of table */
};

struct pci_drv_info gr_rasta_spw_router_info =
{
        {
                DRVMGR_OBJ_DRV,                 /* Driver */
                NULL,                           /* Next driver */
                NULL,                           /* Device list */
                DRIVER_PCI_GAISLER_RASTA_SPW_ROUTER_ID, /* Driver ID */
                "GR-RASTA-SPW_ROUTER_DRV",      /* Driver Name */
                DRVMGR_BUS_TYPE_PCI,            /* Bus Type */
                &gr_rasta_spw_router_ops,
                NULL,                           /* Funcs */
                0,                              /* No devices yet */
                sizeof(struct gr_rasta_spw_router_priv),
        },
        &gr_rasta_spw_router_ids[0]
};

/* Driver resources configuration for the AMBA bus on the GR-RASTA-SPW-ROUTER board.
 * It is declared weak so that the user may override it from the project file,
 * if the default settings are not enough.
 *
 * The configuration consists of an array of configuration pointers, each
 * pointer determine the configuration of one GR-RASTA-SPW-ROUTER board. Pointer
 * zero is for board0, pointer 1 for board1 and so on.
 *
 * The array must end with a NULL pointer.
 */
struct drvmgr_bus_res *gr_rasta_spw_router_resources[] __attribute__((weak)) =
{
        NULL
};

void gr_rasta_spw_router_register_drv(void)
{
        DBG("Registering GR-RASTA-SPW-ROUTER PCI driver\n");
        drvmgr_drv_register(&gr_rasta_spw_router_info.general);
}

void gr_rasta_spw_router_isr(void *arg)
{
        struct gr_rasta_spw_router_priv *priv = arg;
        unsigned int status, tmp;
        int irq;
        SPIN_ISR_IRQFLAGS(irqflags);

        tmp = status = priv->irq->ipend;

        /* DBG("GR-RASTA-SPW-ROUTER: IRQ 0x%x\n",status); */

        SPIN_LOCK(&priv->devlock, irqflags);
        for(irq=0; irq<16; irq++) {
                if ( status & (1<<irq) ) {
                        genirq_doirq(priv->genirq, irq);
                        priv->irq->iclear = (1<<irq);
                        status &= ~(1<<irq);
                        if ( status == 0 )
                                break;
                }
        }
        SPIN_UNLOCK(&priv->devlock, irqflags);

        /* ACK interrupt, this is because PCI is Level, so the IRQ Controller
         * still drives the IRQ
         */
        if ( tmp ) 
                drvmgr_interrupt_clear(priv->dev, 0);

        DBG("RASTA-SPW_ROUTER-IRQ: 0x%x\n", tmp);
}

static int gr_rasta_spw_router_hw_init(struct gr_rasta_spw_router_priv *priv)
{
        int i;
        uint32_t data;
        unsigned int ctrl;
        uint8_t tmp2;
        struct ambapp_dev *tmp;
        struct ambapp_ahb_info *ahb;
        uint8_t cap_ptr;
        pci_dev_t pcidev = priv->pcidev;
        struct pci_dev_info *devinfo = priv->devinfo;

        /* Select version of GR-RASTA-SPW-ROUTER board. Currently only one
         * version
         */
        switch (devinfo->rev) {
                case 0:
                        priv->version = &gr_rasta_spw_router_ver0;
                        break;
                default:
                        return -2;
        }

        /* Check capabilities list bit */
        pci_cfg_r8(pcidev, PCIR_STATUS, &tmp2);

        if (!((tmp2 >> 4) & 1)) {
                /* Capabilities list not available which it should be in the GRPCI2 */
                return -3;
        }

        /* Read capabilities pointer */
        pci_cfg_r8(pcidev, PCIR_CAP_PTR, &cap_ptr);

        /* Set AHB address mappings for target PCI bars */
        pci_cfg_w32(pcidev, cap_ptr+GRPCI2_BAR0_TO_AHB_MAP, 0xffe00000);  /* APB bus, AHB I/O bus 2 MB */ 

        /* Set PCI bus to be big endian */
        pci_cfg_r32(pcidev, cap_ptr+GRPCI2_PCI_CONFIG, &data);
        data = data & 0xFFFFFFFE;
        pci_cfg_w32(pcidev, cap_ptr+GRPCI2_PCI_CONFIG, data);

#if 0
        /* set parity error response */
        pci_cfg_r32(pcidev, PCIR_COMMAND, &data);
        pci_cfg_w32(pcidev, PCIR_COMMAND, (data|PCIM_CMD_PERRESPEN));
#endif

        /* Scan AMBA Plug&Play */

        /* AMBA MAP bar0 (in router) ==> 0xffe00000(remote amba address) */
        priv->amba_maps[0].size = devinfo->resources[0].size;
        priv->amba_maps[0].local_adr = devinfo->resources[0].address;
        priv->amba_maps[0].remote_adr = 0xffe00000;

        /* Addresses not matching with map be untouched */
        priv->amba_maps[1].size = 0xfffffff0;
        priv->amba_maps[1].local_adr = 0;
        priv->amba_maps[1].remote_adr = 0;

        /* Mark end of table */
        priv->amba_maps[2].size=0;

        /* Start AMBA PnP scan at first AHB bus */
        ambapp_scan(
                &priv->abus,
                devinfo->resources[0].address + 0x100000,
                NULL,
                &priv->amba_maps[0]);

        /* Initialize Frequency of AMBA bus */
        ambapp_freq_init(&priv->abus, NULL, priv->version->amba_freq_hz);

        /* Find IRQ controller, Clear all current IRQs */
        tmp = (struct ambapp_dev *)ambapp_for_each(&priv->abus,
                                (OPTIONS_ALL|OPTIONS_APB_SLVS),
                                VENDOR_GAISLER, GAISLER_IRQMP,
                                ambapp_find_by_idx, NULL);
        if ( !tmp ) {
                return -4;
        }
        priv->irq = (struct irqmp_regs *)DEV_TO_APB(tmp)->start;
        /* Set up GR-RASTA-SPW-ROUTER irq controller */
        priv->irq->mask[0] = 0;
        priv->irq->iclear = 0xffff;
        priv->irq->ilevel = 0;

        priv->bus_maps_down[0].name = "PCI BAR0 -> AMBA";
        priv->bus_maps_down[0].size = priv->amba_maps[0].size;
        priv->bus_maps_down[0].from_adr = (void *)priv->amba_maps[0].local_adr;
        priv->bus_maps_down[0].to_adr = (void *)priv->amba_maps[0].remote_adr;
        priv->bus_maps_down[1].size = 0;

        /* Find GRPCI2 controller AHB Slave interface */
        tmp = (struct ambapp_dev *)ambapp_for_each(&priv->abus,
                                        (OPTIONS_ALL|OPTIONS_AHB_SLVS),
                                        VENDOR_GAISLER, GAISLER_GRPCI2,
                                        ambapp_find_by_idx, NULL);
        if ( !tmp ) {
                return -5;
        }
        ahb = (struct ambapp_ahb_info *)tmp->devinfo;
        priv->bus_maps_up[0].name = "AMBA GRPCI2 Window";
        priv->bus_maps_up[0].size = ahb->mask[0]; /* AMBA->PCI Window on GR-RASTA-SPW-ROUTER board */
        priv->bus_maps_up[0].from_adr = (void *)ahb->start[0];
        priv->bus_maps_up[0].to_adr = (void *)
                                (priv->ahbmst2pci_map & ~(ahb->mask[0]-1));
        priv->bus_maps_up[1].size = 0;

        /* Find GRPCI2 controller APB Slave interface */
        tmp = (struct ambapp_dev *)ambapp_for_each(&priv->abus,
                                        (OPTIONS_ALL|OPTIONS_APB_SLVS),
                                        VENDOR_GAISLER, GAISLER_GRPCI2,
                                        ambapp_find_by_idx, NULL);
        if ( !tmp ) {
                return -6;
        }
        priv->grpci2 = (struct grpci2_regs *)
                ((struct ambapp_apb_info *)tmp->devinfo)->start;

        /* Set AHB to PCI mapping for all AMBA AHB masters */
        for(i = 0; i < 16; i++) {
                priv->grpci2->ahbtopcimemmap[i] = priv->ahbmst2pci_map &
                                                        ~(ahb->mask[0]-1);
        }

        /* Make sure dirq(0) sampling is enabled */
        ctrl = priv->grpci2->ctrl;
        ctrl = (ctrl & 0xFFFFFF0F) | (1 << 4);
        priv->grpci2->ctrl = ctrl;

        /* Successfully registered the RASTA-SPW-ROUTER board */
        return 0;
}

static int gr_rasta_spw_router_hw_init2(struct gr_rasta_spw_router_priv *priv)
{
        /* Enable DMA by enabling PCI target as master */
        pci_master_enable(priv->pcidev);

        return DRVMGR_OK;
}

/* Called when a PCI target is found with the PCI device and vendor ID 
 * given in gr_rasta_spw_router_ids[].
 */
int gr_rasta_spw_router_init1(struct drvmgr_dev *dev)
{
        struct gr_rasta_spw_router_priv *priv;
        struct pci_dev_info *devinfo;
        int status;
        uint32_t bar0, bar0_size;
        union drvmgr_key_value *value;
        int resources_cnt;

        priv = dev->priv;
        if (!priv)
                return DRVMGR_NOMEM;

        memset(priv, 0, sizeof(*priv));
        dev->priv = priv;
        priv->dev = dev;

        /* Determine number of configurations */
        resources_cnt = get_resarray_count(gr_rasta_spw_router_resources);

        /* Generate Device prefix */

        strcpy(priv->prefix, "/dev/spwrouter0");
        priv->prefix[14] += dev->minor_drv;
        mkdir(priv->prefix, S_IRWXU | S_IRWXG | S_IRWXO);
        priv->prefix[15] = '/';
        priv->prefix[16] = '\0';

        priv->devinfo = devinfo = (struct pci_dev_info *)dev->businfo;
        priv->pcidev = devinfo->pcidev;
        bar0 = devinfo->resources[0].address;
        bar0_size = devinfo->resources[0].size;
        printk("\n\n--- GR-RASTA-SPW-ROUTER[%d] ---\n", dev->minor_drv);
        printk(" PCI BUS: 0x%x, SLOT: 0x%x, FUNCTION: 0x%x\n",
                PCI_DEV_EXPAND(priv->pcidev));
        printk(" PCI VENDOR: 0x%04x, DEVICE: 0x%04x\n",
                devinfo->id.vendor, devinfo->id.device);
        printk(" PCI BAR[0]: 0x%08lx - 0x%08lx\n", bar0, bar0 + bar0_size - 1);
        printk(" IRQ: %d\n\n\n", devinfo->irq);

        /* all neccessary space assigned to GR-RASTA-SPW-ROUTER target? */
        if (bar0_size == 0)
                return DRVMGR_ENORES;

        /* Initialize spin-lock for this PCI peripheral device. This is to
         * protect the Interrupt Controller Registers. The genirq layer is
         * protecting its own internals and ISR dispatching.
         */
        SPIN_INIT(&priv->devlock, priv->prefix);

        /* Let user override which PCI address the AHB masters of the
         * GR-RASTA-SPW board access when doing DMA to CPU RAM. The AHB masters
         * access the PCI Window of the AMBA bus, the MSB 4-bits of that address
         * is translated according this config option before the address
         * goes out on the PCI bus.
         * Only the 4 MSB bits have an effect;
         */
        value = drvmgr_dev_key_get(priv->dev, "ahbmst2pci", DRVMGR_KT_INT);
        if (value)
                priv->ahbmst2pci_map = value->i;
        else
                priv->ahbmst2pci_map = AHBMST2PCIADR; /* default */     

        priv->genirq = genirq_init(16);
        if ( priv->genirq == NULL )
                return DRVMGR_FAIL;

        if ((status = gr_rasta_spw_router_hw_init(priv)) != 0) {
                genirq_destroy(priv->genirq);
                printk(" Failed to initialize GR-RASTA-SPW-ROUTER HW: %d\n", status);
                return DRVMGR_FAIL;
        }

        /* Init amba bus */
        priv->config.abus = &priv->abus;
        priv->config.ops = &ambapp_rasta_spw_router_ops;
        priv->config.maps_up = &priv->bus_maps_up[0];
        priv->config.maps_down = &priv->bus_maps_down[0];
        if ( priv->dev->minor_drv < resources_cnt ) {
                priv->config.resources = gr_rasta_spw_router_resources[priv->dev->minor_drv];
        } else {
                priv->config.resources = NULL;
        }

        /* Create and register AMBA PnP bus. */
        return ambapp_bus_register(dev, &priv->config);
}

int gr_rasta_spw_router_init2(struct drvmgr_dev *dev)
{
        struct gr_rasta_spw_router_priv *priv = dev->priv;

        /* Clear any old interrupt requests */
        drvmgr_interrupt_clear(dev, 0);

        /* Enable System IRQ so that GR-RASTA-SPW-ROUTER PCI target interrupt
         * goes through.
         *
         * It is important to enable it in stage init2. If interrupts were
         * enabled in init1 this might hang the system when more than one
         * PCI board is connected, this is because PCI interrupts might
         * be shared and PCI board 2 have not initialized and
         * might therefore drive interrupt already when entering init1().
         */
        drvmgr_interrupt_register(
                dev,
                0,
                "gr_rasta_spw_router",
                gr_rasta_spw_router_isr,
                (void *)priv);

        return gr_rasta_spw_router_hw_init2(priv);
}

int ambapp_rasta_spw_router_int_register(
        struct drvmgr_dev *dev,
        int irq,
        const char *info,
        drvmgr_isr handler,
        void *arg)
{
        struct gr_rasta_spw_router_priv *priv = dev->parent->dev->priv;
        SPIN_IRQFLAGS(irqflags);
        int status;
        void *h;

        h = genirq_alloc_handler(handler, arg);
        if ( h == NULL )
                return DRVMGR_FAIL;

        SPIN_LOCK_IRQ(&priv->devlock, irqflags);

        status = genirq_register(priv->genirq, irq, h);
        if (status == 0) {
                /* Clear IRQ for first registered handler */
                priv->irq->iclear = (1<<irq);
        } else if (status == 1)
                status = 0;

        if (status != 0) {
                SPIN_UNLOCK_IRQ(&priv->devlock, irqflags);
                genirq_free_handler(h);
                return DRVMGR_FAIL;
        }

        status = genirq_enable(priv->genirq, irq, handler, arg);
        if ( status == 0 ) {
                /* Enable IRQ for first enabled handler only */
                priv->irq->mask[0] |= (1<<irq); /* unmask interrupt source */
        } else if ( status == 1 )
                status = 0;

        SPIN_UNLOCK_IRQ(&priv->devlock, irqflags);

        return status;
}

int ambapp_rasta_spw_router_int_unregister(
        struct drvmgr_dev *dev,
        int irq,
        drvmgr_isr isr,
        void *arg)
{
        struct gr_rasta_spw_router_priv *priv = dev->parent->dev->priv;
        SPIN_IRQFLAGS(irqflags);
        int status;
        void *handler;

        SPIN_LOCK_IRQ(&priv->devlock, irqflags);

        status = genirq_disable(priv->genirq, irq, isr, arg);
        if ( status == 0 ) {
                /* Disable IRQ only when no enabled handler exists */
                priv->irq->mask[0] &= ~(1<<irq); /* mask interrupt source */
        }

        handler = genirq_unregister(priv->genirq, irq, isr, arg);
        if ( handler == NULL )
                status = DRVMGR_FAIL;
        else
                status = DRVMGR_OK;

        SPIN_UNLOCK_IRQ(&priv->devlock, irqflags);

        if (handler)
                genirq_free_handler(handler);

        return status;
}

int ambapp_rasta_spw_router_int_unmask(
        struct drvmgr_dev *dev,
        int irq)
{
        struct gr_rasta_spw_router_priv *priv = dev->parent->dev->priv;
        SPIN_IRQFLAGS(irqflags);

        DBG("RASTA-SPW-ROUTER IRQ %d: unmask\n", irq);

        if ( genirq_check(priv->genirq, irq) )
                return DRVMGR_EINVAL;

        SPIN_LOCK_IRQ(&priv->devlock, irqflags);

        /* Enable IRQ for first enabled handler only */
        priv->irq->mask[0] |= (1<<irq); /* unmask interrupt source */

        SPIN_UNLOCK_IRQ(&priv->devlock, irqflags);

        return DRVMGR_OK;
}

int ambapp_rasta_spw_router_int_mask(
        struct drvmgr_dev *dev,
        int irq)
{
        struct gr_rasta_spw_router_priv *priv = dev->parent->dev->priv;
        SPIN_IRQFLAGS(irqflags);

        DBG("RASTA-SPW-ROUTER IRQ %d: mask\n", irq);

        if ( genirq_check(priv->genirq, irq) )
                return DRVMGR_EINVAL;

        SPIN_LOCK_IRQ(&priv->devlock, irqflags);

        /* Disable/mask IRQ */
        priv->irq->mask[0] &= ~(1<<irq); /* mask interrupt source */

        SPIN_UNLOCK_IRQ(&priv->devlock, irqflags);

        return DRVMGR_OK;
}

int ambapp_rasta_spw_router_int_clear(
        struct drvmgr_dev *dev,
        int irq)
{
        struct gr_rasta_spw_router_priv *priv = dev->parent->dev->priv;

        if ( genirq_check(priv->genirq, irq) )
                return DRVMGR_EINVAL;

        priv->irq->iclear = (1<<irq);

        return DRVMGR_OK;
}

int ambapp_rasta_spw_router_get_params(struct drvmgr_dev *dev, struct drvmgr_bus_params *params)
{
        struct gr_rasta_spw_router_priv *priv = dev->parent->dev->priv;

        /* Device name prefix pointer, skip /dev */
        params->dev_prefix = &priv->prefix[5];

        return 0;
}

void gr_rasta_spw_router_print_dev(struct drvmgr_dev *dev, int options)
{
        struct gr_rasta_spw_router_priv *priv = dev->priv;
        struct pci_dev_info *devinfo = priv->devinfo;
        uint32_t bar0, bar0_size;

        /* Print */
        printf("--- GR-RASTA-SPW-ROUTER [bus 0x%x, dev 0x%x, fun 0x%x] ---\n",
                PCI_DEV_EXPAND(priv->pcidev));

        bar0 = devinfo->resources[0].address;
        bar0_size = devinfo->resources[0].size;
        printf(" PCI BAR[0]: 0x%lx - 0x%lx\n", bar0, bar0 + bar0_size - 1);
        printf(" IRQ REGS:        0x%x\n", (unsigned int)priv->irq);
        printf(" IRQ:             %d\n", devinfo->irq);
        printf(" PCI REVISION:    %d\n", devinfo->rev);
        printf(" FREQ:            %d Hz\n", priv->version->amba_freq_hz);
        printf(" IMASK:           0x%08x\n", priv->irq->mask[0]);
        printf(" IPEND:           0x%08x\n", priv->irq->ipend);

        /* Print amba config */
        if (options & RASTA_SPW_ROUTER_OPTIONS_AMBA)
                ambapp_print(&priv->abus, 10);

#if 0
        /* Print IRQ handlers and their arguments */
        if (options & RASTA_SPW_ROUTER_OPTIONS_IRQ) {
                int i;
                for(i = 0; i < 16; i++) {
                        printf(" IRQ[%02d]:         0x%x, arg: 0x%x\n", 
                                i, (unsigned int)priv->isrs[i].handler,
                                (unsigned int)priv->isrs[i].arg);
                }
        }
#endif
}

void gr_rasta_spw_router_print(int options)
{
        struct pci_drv_info *drv = &gr_rasta_spw_router_info;
        struct drvmgr_dev *dev;

        dev = drv->general.dev;
        while(dev) {
                gr_rasta_spw_router_print_dev(dev, options);
                dev = dev->next_in_drv;
        }
}