/**
* @file
*
* @ingroup sparc_erc32
*
* @brief THARSYS VME SPARC RT board SONIC Configuration Information
*
* References:
*
* 1) SVME/DMV-171 Single Board Computer Documentation Package, #805905,
* DY 4 Systems Inc., Kanata, Ontario, September, 1996.
*/
/*
* COPYRIGHT (c) 2000.
* European Space Agency.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <machine/rtems-bsd-kernel-space.h>
#include <bsp.h>
#include <libchip/sonic.h>
#if (SONIC_DEBUG & SONIC_DEBUG_PRINT_REGISTERS)
#include <stdio.h>
#endif
static void erc32_sonic_write_register(
void *base,
uint32_t regno,
uint32_t value
)
{
volatile uint32_t *p = base;
#if (SONIC_DEBUG & SONIC_DEBUG_PRINT_REGISTERS)
printf( "%p Write 0x%04x to %s (0x%02x)\n",
&p[regno], value, SONIC_Reg_name[regno], regno );
fflush( stdout );
#endif
p[regno] = 0x0ffff & value;
}
static uint32_t erc32_sonic_read_register(
void *base,
uint32_t regno
)
{
volatile uint32_t *p = base;
uint32_t value;
value = p[regno];
#if (SONIC_DEBUG & SONIC_DEBUG_PRINT_REGISTERS)
printf( "%p Read 0x%04x from %s (0x%02x)\n",
&p[regno], value, SONIC_Reg_name[regno], regno );
fflush( stdout );
#endif
return 0x0ffff & value;
}
/*
* Default sizes of transmit and receive descriptor areas
*/
#define RDA_COUNT 20 /* 20 */
#define TDA_COUNT 20 /* 10 */
/*
* Default device configuration register values
* Conservative, generic values.
* DCR:
* No extended bus mode
* Unlatched bus retry
* Programmable outputs unused
* Asynchronous bus mode
* User definable pins unused
* No wait states (access time controlled by DTACK*)
* 32-bit DMA
* Empty/Fill DMA mode
* Maximum Transmit/Receive FIFO
* DC2:
* Extended programmable outputs unused
* Normal HOLD request
* Packet compress output unused
* No reject on CAM match
*/
#define SONIC_DCR ( DCR_DW32 | DCR_RFT24 | DCR_TFT28)
#define SONIC_DC2 (0)
/*
* Default location of device registers
*/
#define SONIC_BASE_ADDRESS 0x10000100
/*
* Default interrupt vector
*/
#define SONIC_VECTOR 0x1E
sonic_configuration_t erc32_sonic_configuration = {
(void *)SONIC_BASE_ADDRESS, /* base address */
SONIC_VECTOR, /* vector number */
SONIC_DCR, /* DCR register value */
SONIC_DC2, /* DC2 register value */
TDA_COUNT, /* number of transmit descriptors */
RDA_COUNT, /* number of receive descriptors */
erc32_sonic_write_register,
erc32_sonic_read_register
};
int rtems_erc32_sonic_driver_attach(struct rtems_bsdnet_ifconfig *config)
{
ERC32_MEC.IO_Configuration |=
(0x15 << (((SONIC_BASE_ADDRESS >> 24) & 0x3) * 8));
ERC32_MEC.Control &= ~0x60001; /* Disable DMA time-out, parity & power-down */
ERC32_MEC.Control |= 0x10000; /* Enable DMA */
ERC32_MEC.Interrupt_Mask &= ~(1 << (SONIC_VECTOR - 0x10));
return(rtems_sonic_driver_attach( config, &erc32_sonic_configuration ));
}
