#include <bsp.h>
#ifdef HAS_SMC91111
#include <mpc55xx/mpc55xx.h>
#include <mpc55xx/regs.h>
#include <rtems.h>
#include <bsp/irq.h>
#include <rtems/bspIo.h>
#include <libcpu/powerpc-utility.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <rtems/error.h>
#include <rtems/rtems_bsdnet.h>
#include <rtems/irq-extension.h>
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <libchip/smc91111exp.h>
/* The SMC91111 on the MPC5554SOM is IRQ2.
*/
#define SMC91111_BASE_ADDR (void*)0x22000300
#define SMC91111_BASE_IRQ MPC55XX_IRQ_SIU_EXTERNAL_2
#define SMC91111_BASE_PIO 4
extern void lan91cxx_interrupt_handler(void *arg);
static const union SIU_EISR_tag clear_eisr_2 = {.B.EIF2 = 1};
static void rtems_smc91111_interrupt_wrapper(void *arg)
{
/* Clear external interrupt status */
SIU.EISR = clear_eisr_2;
lan91cxx_interrupt_handler(arg);
}
scmv91111_configuration_t mpc5554_scmv91111_configuration = {
SMC91111_BASE_ADDR, /* base address */
SMC91111_BASE_IRQ, /* vector number */
SMC91111_BASE_PIO, /* XXX: What's this? */
100, /* 100b */
1, /* fulldx */
1, /* autoneg */
"SMC91111",
RTEMS_INTERRUPT_UNIQUE,
rtems_smc91111_interrupt_wrapper,
(void *)0
};
/*
* Attach an SMC91111 driver to the system
*/
int rtems_smc91111_driver_attach_mpc5554(struct rtems_bsdnet_ifconfig *config)
{
/* Configure IRQ2 (GPIO pin 211) is set up properly:
* Secondary, Alternate, Input.
*/
static const union SIU_PCR_tag irq_input_pcr = {
.B.PA = 2, /* Alternate function 1 */
.B.OBE = 0,
.B.IBE = 1, /* Input Buffer Enable */
.B.DSC = 0,
.B.ODE = 0,
.B.HYS = 1,
.B.SRC = 3, /* Maximum slew rate */
.B.WPE = 0, /* Disable weak pullup/pulldown */
.B.WPS = 1 /* Specify weak pullup? But it isn't enabled! */
};
union SIU_ORER_tag orer = MPC55XX_ZERO_FLAGS;
union SIU_DIRER_tag direr = MPC55XX_ZERO_FLAGS;
union SIU_IREER_tag ireer = MPC55XX_ZERO_FLAGS;
union SIU_IFEER_tag ifeer = MPC55XX_ZERO_FLAGS;
union SIU_IDFR_tag idfr = MPC55XX_ZERO_FLAGS;
union SIU_DIRSR_tag dirsr = MPC55XX_ZERO_FLAGS;
rtems_interrupt_level level;
#define MPC55XX_EBI_CS_2_BR 0x22000003
#define MPC55XX_EBI_CS_2_OR 0xff000010
#if MPC55XX_EBI_CS_2_BR
static const union SIU_PCR_tag primary_50pf_weak_pullup = { /* 0x4c3 */
.B.PA = 1,
.B.DSC = 3,
.B.WPE = 1,
.B.WPS = 1
};
EBI.CS[2].BR.R = MPC55XX_EBI_CS_2_BR;
EBI.CS[2].OR.R = MPC55XX_EBI_CS_2_OR;
SIU.PCR[2] = primary_50pf_weak_pullup;
#endif
SIU.PCR[211] = irq_input_pcr;
/* XXX These should be using bit set and bit clear instructions */
/* DMA/Interrupt Request Select */
rtems_interrupt_disable(level);
dirsr.R = SIU.DIRSR.R;
dirsr.B.DIRS2 = 0; /* Select interrupt not DMA */
SIU.DIRSR.R = dirsr.R;
rtems_interrupt_enable(level);
/* Overrun Request Enable */
rtems_interrupt_disable(level);
orer.R = SIU.ORER.R;
orer.B.ORE2 = 0; /* Disable overruns. */
SIU.ORER.R = orer.R;
rtems_interrupt_enable(level);
/* IRQ Rising-Edge Enable */
rtems_interrupt_disable(level);
ireer.R = SIU.IREER.R;
ireer.B.IREE2 = 1; /* Enable rising edge. */
SIU.IREER.R = ireer.R;
rtems_interrupt_enable(level);
/* IRQ Falling-Edge Enable */
rtems_interrupt_disable(level);
ifeer.R = SIU.IFEER.R;
ifeer.B.IFEE2 = 0; /* Disable falling edge. */
SIU.IFEER.R = ifeer.R;
rtems_interrupt_enable(level);
/* IRQ Digital Filter */
rtems_interrupt_disable(level);
idfr.R = SIU.IDFR.R;
idfr.B.DFL = 0; /* Minimal digital filter. */
SIU.IDFR.R = idfr.R;
rtems_interrupt_enable(level);
/* Clear external interrupt status */
SIU.EISR = clear_eisr_2;
/* DMA/Interrupt Request Enable */
rtems_interrupt_disable(level);
direr.R = SIU.DIRER.R;
direr.B.EIRE2 = 1; /* Enable. */
SIU.DIRER.R = direr.R;
rtems_interrupt_enable(level);
return _rtems_smc91111_driver_attach(config,&mpc5554_scmv91111_configuration);
};
#endif /* HAS_SMC91111 */
