diff options
Diffstat (limited to 'drivers/net/fddi/defxx.c')
| -rw-r--r-- | drivers/net/fddi/defxx.c | 61 |
1 files changed, 38 insertions, 23 deletions
diff --git a/drivers/net/fddi/defxx.c b/drivers/net/fddi/defxx.c index d8d4f3d3ca32..75d54ea72c56 100644 --- a/drivers/net/fddi/defxx.c +++ b/drivers/net/fddi/defxx.c @@ -447,23 +447,24 @@ static void dfx_get_bars(struct device *bdev, } if (dfx_bus_eisa) { unsigned long base_addr = to_eisa_device(bdev)->base_addr; - resource_size_t bar; + resource_size_t bar_lo; + resource_size_t bar_hi; if (dfx_use_mmio) { - bar = inb(base_addr + PI_ESIC_K_MEM_ADD_CMP_2); - bar <<= 8; - bar |= inb(base_addr + PI_ESIC_K_MEM_ADD_CMP_1); - bar <<= 8; - bar |= inb(base_addr + PI_ESIC_K_MEM_ADD_CMP_0); - bar <<= 16; - *bar_start = bar; - bar = inb(base_addr + PI_ESIC_K_MEM_ADD_MASK_2); - bar <<= 8; - bar |= inb(base_addr + PI_ESIC_K_MEM_ADD_MASK_1); - bar <<= 8; - bar |= inb(base_addr + PI_ESIC_K_MEM_ADD_MASK_0); - bar <<= 16; - *bar_len = (bar | PI_MEM_ADD_MASK_M) + 1; + bar_lo = inb(base_addr + PI_ESIC_K_MEM_ADD_LO_CMP_2); + bar_lo <<= 8; + bar_lo |= inb(base_addr + PI_ESIC_K_MEM_ADD_LO_CMP_1); + bar_lo <<= 8; + bar_lo |= inb(base_addr + PI_ESIC_K_MEM_ADD_LO_CMP_0); + bar_lo <<= 8; + *bar_start = bar_lo; + bar_hi = inb(base_addr + PI_ESIC_K_MEM_ADD_HI_CMP_2); + bar_hi <<= 8; + bar_hi |= inb(base_addr + PI_ESIC_K_MEM_ADD_HI_CMP_1); + bar_hi <<= 8; + bar_hi |= inb(base_addr + PI_ESIC_K_MEM_ADD_HI_CMP_0); + bar_hi <<= 8; + *bar_len = ((bar_hi - bar_lo) | PI_MEM_ADD_MASK_M) + 1; } else { *bar_start = base_addr; *bar_len = PI_ESIC_K_CSR_IO_LEN + @@ -518,6 +519,7 @@ static int dfx_register(struct device *bdev) { static int version_disp; int dfx_bus_pci = dev_is_pci(bdev); + int dfx_bus_eisa = DFX_BUS_EISA(bdev); int dfx_bus_tc = DFX_BUS_TC(bdev); int dfx_use_mmio = DFX_MMIO || dfx_bus_tc; const char *print_name = dev_name(bdev); @@ -558,6 +560,16 @@ static int dfx_register(struct device *bdev) dev_set_drvdata(bdev, dev); dfx_get_bars(bdev, &bar_start, &bar_len); + if (dfx_bus_eisa && dfx_use_mmio && bar_start == 0) { + pr_err("%s: Cannot use MMIO, no address set, aborting\n", + print_name); + pr_err("%s: Run ECU and set adapter's MMIO location\n", + print_name); + pr_err("%s: Or recompile driver with \"CONFIG_DEFXX_MMIO=n\"" + "\n", print_name); + err = -ENXIO; + goto err_out; + } if (dfx_use_mmio) region = request_mem_region(bar_start, bar_len, print_name); @@ -714,13 +726,14 @@ static void dfx_bus_init(struct net_device *dev) } /* - * Enable memory decoding (MEMCS0) and/or port decoding + * Enable memory decoding (MEMCS1) and/or port decoding * (IOCS1/IOCS0) as appropriate in Function Control - * Register. IOCS0 is used for PDQ registers, taking 16 - * 32-bit words, while IOCS1 is used for the Burst Holdoff - * register, taking a single 32-bit word only. We use the - * slot-specific I/O range as per the ESIC spec, that is - * set bits 15:12 in the mask registers to mask them out. + * Register. MEMCS1 or IOCS0 is used for PDQ registers, + * taking 16 32-bit words, while IOCS1 is used for the + * Burst Holdoff register, taking a single 32-bit word + * only. We use the slot-specific I/O range as per the + * ESIC spec, that is set bits 15:12 in the mask registers + * to mask them out. */ /* Set the decode range of the board. */ @@ -745,9 +758,11 @@ static void dfx_bus_init(struct net_device *dev) outb(val, base_addr + PI_ESIC_K_IO_ADD_MASK_1_0); /* Enable the decoders. */ - val = PI_FUNCTION_CNTRL_M_IOCS1 | PI_FUNCTION_CNTRL_M_IOCS0; + val = PI_FUNCTION_CNTRL_M_IOCS1; if (dfx_use_mmio) - val |= PI_FUNCTION_CNTRL_M_MEMCS0; + val |= PI_FUNCTION_CNTRL_M_MEMCS1; + else + val |= PI_FUNCTION_CNTRL_M_IOCS0; outb(val, base_addr + PI_ESIC_K_FUNCTION_CNTRL); /* |