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/**
* @file
* @ingroup sparc_leon3
* @brief LEON3 BSP SMC91111 registration and low-level initialization
*/
/*
* Copyright (c) 2006.
* Aeroflex Gaisler AB.
*
* 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/smc91111exp.h>
#include <rtems/bspIo.h>
#include <ambapp.h>
#define SMC91111_BASE_ADDR (void*)0x20000300
#define SMC91111_BASE_IRQ 4
#define SMC91111_BASE_PIO 4
scmv91111_configuration_t leon_scmv91111_configuration = {
SMC91111_BASE_ADDR, /* base address */
SMC91111_BASE_IRQ, /* IRQ number (on LEON vector is irq) */
SMC91111_BASE_PIO, /* PIO */
100, /* 100b */
1, /* fulldx */
1 /* autoneg */
};
/*
* Attach an SMC91111 driver to the system
*/
int
rtems_smc91111_driver_attach_leon3 (struct rtems_bsdnet_ifconfig *config,
int attach)
{
unsigned long addr_mctrl = 0;
struct grgpio_regs *io;
struct ambapp_apb_info apbpio;
struct ambapp_apb_info apbmctrl;
if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_GPIO, &apbpio)
!= 1) {
printk("SMC9111_leon3: didn't find PIO\n");
return 0;
}
/* In order to access the SMC controller the memory controller must have
* I/O bus enabled. Find first memory controller.
*/
if (ambapp_find_apbslv(&ambapp_plb, VENDOR_ESA, ESA_MCTRL, &apbmctrl) != 1) {
if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_FTMCTRL,
&apbmctrl) != 1) {
if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_FTSRCTRL,
&apbmctrl) != 1) {
if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_FTSRCTRL8,
&apbmctrl) != 1) {
printk("SMC9111_leon3: didn't find any memory controller\n");
return 0;
}
}
}
}
/* Get controller address */
addr_mctrl = (unsigned long) apbmctrl.start;
io = (struct grgpio_regs *) apbpio.start;
printk("Activating Leon3 io port for smsc_lan91cxx (pio:%x mctrl:%x)\n",
(unsigned int)io, (unsigned int)addr_mctrl);
/* Setup PIO IRQ */
io->imask |= (1 << leon_scmv91111_configuration.pio);
io->ipol |= (1 << leon_scmv91111_configuration.pio);
io->iedge |= (1 << leon_scmv91111_configuration.pio);
io->dir &= ~(1 << leon_scmv91111_configuration.pio);
/* Setup memory controller I/O waitstates */
*((volatile unsigned int *) addr_mctrl) |=
0x10f80000; /* enable I/O area access */
return _rtems_smc91111_driver_attach(config, &leon_scmv91111_configuration);
};
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