diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-02-11 16:25:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 10:51:33 +0300 |
| commit | 1355cba9c3bae4196f4d9ae4a38ae2f1e9002bea (patch) | |
| tree | 4475b257ef2c4f88cec1174599e0d9b99c3231e1 /drivers/tty | |
| parent | 54b2f300f3862ae57c78f9c080f86b973cf2d8b1 (diff) | |
| download | linux-1355cba9c3bae4196f4d9ae4a38ae2f1e9002bea.tar.xz | |
tty/synclink: remove ISA support
The ISA support in this driver is horribly outdated and the last
driver that passes a NULL dev argument to the DMA mapping routines.
Drop the support, if someone wants to go through the work of converting
it to a proper isa_driver we can resurrect it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/synclink.c | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c index d55c858d6058..84f26e43b229 100644 --- a/drivers/tty/synclink.c +++ b/drivers/tty/synclink.c @@ -4325,41 +4325,6 @@ static int mgsl_init_tty(void) return 0; } -/* enumerate user specified ISA adapters - */ -static void mgsl_enum_isa_devices(void) -{ - struct mgsl_struct *info; - int i; - - /* Check for user specified ISA devices */ - - for (i=0 ;(i < MAX_ISA_DEVICES) && io[i] && irq[i]; i++){ - if ( debug_level >= DEBUG_LEVEL_INFO ) - printk("ISA device specified io=%04X,irq=%d,dma=%d\n", - io[i], irq[i], dma[i] ); - - info = mgsl_allocate_device(); - if ( !info ) { - /* error allocating device instance data */ - if ( debug_level >= DEBUG_LEVEL_ERROR ) - printk( "can't allocate device instance data.\n"); - continue; - } - - /* Copy user configuration info to device instance data */ - info->io_base = (unsigned int)io[i]; - info->irq_level = (unsigned int)irq[i]; - info->irq_level = irq_canonicalize(info->irq_level); - info->dma_level = (unsigned int)dma[i]; - info->bus_type = MGSL_BUS_TYPE_ISA; - info->io_addr_size = 16; - info->irq_flags = 0; - - mgsl_add_device( info ); - } -} - static void synclink_cleanup(void) { int rc; @@ -4403,7 +4368,6 @@ static int __init synclink_init(void) printk("%s %s\n", driver_name, driver_version); - mgsl_enum_isa_devices(); if ((rc = pci_register_driver(&synclink_pci_driver)) < 0) printk("%s:failed to register PCI driver, error=%d\n",__FILE__,rc); else @@ -5025,12 +4989,6 @@ static void usc_set_sdlc_mode( struct mgsl_struct *info ) info->mbre_bit = BIT8; outw( BIT8, info->io_base ); /* set Master Bus Enable (DCAR) */ - if (info->bus_type == MGSL_BUS_TYPE_ISA) { - /* Enable DMAEN (Port 7, Bit 14) */ - /* This connects the DMA request signal to the ISA bus */ - usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) & ~BIT14)); - } - /* DMA Control Register (DCR) * * <15..14> 10 Priority mode = Alternating Tx/Rx @@ -6007,12 +5965,6 @@ static void usc_set_async_mode( struct mgsl_struct *info ) usc_EnableMasterIrqBit( info ); - if (info->bus_type == MGSL_BUS_TYPE_ISA) { - /* Enable INTEN (Port 6, Bit12) */ - /* This connects the IRQ request signal to the ISA bus */ - usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12)); - } - if (info->params.loopback) { info->loopback_bits = 0x300; outw(0x0300, info->io_base + CCAR); @@ -6107,12 +6059,6 @@ static void usc_set_sync_mode( struct mgsl_struct *info ) usc_loopback_frame( info ); usc_set_sdlc_mode( info ); - if (info->bus_type == MGSL_BUS_TYPE_ISA) { - /* Enable INTEN (Port 6, Bit12) */ - /* This connects the IRQ request signal to the ISA bus */ - usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12)); - } - usc_enable_aux_clock(info, info->params.clock_speed); if (info->params.loopback) |