source: rtems/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c @ c167b56

Last change on this file since c167b56 was c167b56, checked in by Daniel Hellstrom <daniel@…>, on 04/05/12 at 15:23:17

GRETH: use shared-irq service instead of BSP specific set_vec()

The ISR code is updated to use argument instead of global greth
structure, now that the greth private is available in the ISR.

The shared-irq routines will unmask the IRQ, so the forced LEON3
BSP unmask/clear IRQ is removed.

Signed-off-by: Daniel Hellstrom <daniel@…>

  • Property mode set to 100644
File size: 1.5 KB
Line 
1/*
2 *  LEON3 Opencores Ethernet MAC Configuration Information
3 *
4 *  COPYRIGHT (c) 2004.
5 *  Gaisler Research
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  leon_open_eth.c,v 1.1.2.1 2005/10/05 19:26:00 joel Exp
12 */
13
14
15#include <bsp.h>
16#include <libchip/greth.h>
17/*#if (GRETH_DEBUG & GRETH_DEBUG_PRINT_REGISTERS)*/
18#include <stdio.h>
19/*#endif*/
20
21/*
22 * Default sizes of transmit and receive descriptor areas
23 */
24#define RDA_COUNT     32
25#define TDA_COUNT     32
26
27greth_configuration_t leon_greth_configuration;
28
29int rtems_leon_greth_driver_attach(
30  struct rtems_bsdnet_ifconfig *config,
31  int attach
32)
33{
34  int device_found = 0;
35  unsigned int base_addr = 0; /* avoid warnings */
36  unsigned int eth_irq = 0;   /* avoid warnings */
37        amba_apb_device apbgreth;
38
39  /* Scan for MAC AHB slave interface */
40        device_found = amba_find_apbslv(&amba_conf,VENDOR_GAISLER,GAISLER_ETHMAC,&apbgreth);
41  if (device_found == 1)
42  {
43                base_addr = apbgreth.start;
44                eth_irq = apbgreth.irq;
45
46    /* clear control register and reset NIC */
47    *(volatile int *) base_addr = 0;
48    *(volatile int *) base_addr = GRETH_CTRL_RST;
49    *(volatile int *) base_addr = 0;
50    leon_greth_configuration.base_address = base_addr;
51    leon_greth_configuration.vector = eth_irq; /* on LEON vector is IRQ no. */
52    leon_greth_configuration.txd_count = TDA_COUNT;
53    leon_greth_configuration.rxd_count = RDA_COUNT;
54    rtems_greth_driver_attach(config, &leon_greth_configuration);
55  }
56  return 0;
57}
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