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Diffstat (limited to 'bsps/sparc/shared/pci/gr_rasta_spw_router.c')
-rw-r--r--bsps/sparc/shared/pci/gr_rasta_spw_router.c703
1 files changed, 703 insertions, 0 deletions
diff --git a/bsps/sparc/shared/pci/gr_rasta_spw_router.c b/bsps/sparc/shared/pci/gr_rasta_spw_router.c
new file mode 100644
index 0000000000..7f7e35085a
--- /dev/null
+++ b/bsps/sparc/shared/pci/gr_rasta_spw_router.c
@@ -0,0 +1,703 @@
+/* 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 <rtems/score/isrlock.h> /* spin-lock */
+#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>
+
+/* map via rtems_interrupt_lock_* API: */
+#define SPIN_DECLARE(lock) RTEMS_INTERRUPT_LOCK_MEMBER(lock)
+#define SPIN_INIT(lock, name) rtems_interrupt_lock_initialize(lock, name)
+#define SPIN_LOCK(lock, level) rtems_interrupt_lock_acquire_isr(lock, &level)
+#define SPIN_LOCK_IRQ(lock, level) rtems_interrupt_lock_acquire(lock, &level)
+#define SPIN_UNLOCK(lock, level) rtems_interrupt_lock_release_isr(lock, &level)
+#define SPIN_UNLOCK_IRQ(lock, level) rtems_interrupt_lock_release(lock, &level)
+#define SPIN_IRQFLAGS(k) rtems_interrupt_lock_context k
+#define SPIN_ISR_IRQFLAGS(k) SPIN_IRQFLAGS(k)
+
+/* 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);
+ printf("data: 0x%x\n", ctrl);
+ 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;
+ printf("\n\n--- GR-RASTA-SPW-ROUTER[%d] ---\n", dev->minor_drv);
+ printf(" PCI BUS: 0x%x, SLOT: 0x%x, FUNCTION: 0x%x\n",
+ PCI_DEV_EXPAND(priv->pcidev));
+ printf(" PCI VENDOR: 0x%04x, DEVICE: 0x%04x\n",
+ devinfo->id.vendor, devinfo->id.device);
+ printf(" PCI BAR[0]: 0x%08lx - 0x%08lx\n", bar0, bar0 + bar0_size - 1);
+ printf(" 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);
+ printf(" 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;
+ }
+}