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Diffstat (limited to 'arch/powerpc/include/asm/parport.h')
| -rw-r--r-- | arch/powerpc/include/asm/parport.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/parport.h b/arch/powerpc/include/asm/parport.h new file mode 100644 index 000000000..42cc321ed --- /dev/null +++ b/arch/powerpc/include/asm/parport.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * parport.h: platform-specific PC-style parport initialisation + * + * Copyright (C) 1999, 2000 Tim Waugh <tim@cyberelk.demon.co.uk> + * + * This file should only be included by drivers/parport/parport_pc.c. + */ + +#ifndef _ASM_POWERPC_PARPORT_H +#define _ASM_POWERPC_PARPORT_H +#ifdef __KERNEL__ + +#include <linux/of_irq.h> + +static int parport_pc_find_nonpci_ports (int autoirq, int autodma) +{ + struct device_node *np; + const u32 *prop; + u32 io1, io2; + int propsize; + int count = 0; + int virq; + + for_each_compatible_node(np, "parallel", "pnpPNP,400") { + prop = of_get_property(np, "reg", &propsize); + if (!prop || propsize > 6*sizeof(u32)) + continue; + io1 = prop[1]; io2 = prop[2]; + + virq = irq_of_parse_and_map(np, 0); + if (!virq) + continue; + + if (parport_pc_probe_port(io1, io2, virq, autodma, NULL, 0) + != NULL) + count++; + } + return count; +} + +#endif /* __KERNEL__ */ +#endif /* !(_ASM_POWERPC_PARPORT_H) */ |