diff options
Diffstat (limited to 'bsps/sparc/leon3/net/leon_smc91111.c')
-rw-r--r-- | bsps/sparc/leon3/net/leon_smc91111.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/bsps/sparc/leon3/net/leon_smc91111.c b/bsps/sparc/leon3/net/leon_smc91111.c new file mode 100644 index 0000000..70b2dcc --- /dev/null +++ b/bsps/sparc/leon3/net/leon_smc91111.c @@ -0,0 +1,89 @@ +/** + * @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 <grlib/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); +}; |