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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-footbridge/ebsa285-pci.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-footbridge/ebsa285-pci.c')
-rw-r--r-- | arch/arm/mach-footbridge/ebsa285-pci.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/mach-footbridge/ebsa285-pci.c b/arch/arm/mach-footbridge/ebsa285-pci.c new file mode 100644 index 000000000..c3f280d08 --- /dev/null +++ b/arch/arm/mach-footbridge/ebsa285-pci.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/arch/arm/mach-footbridge/ebsa285-pci.c + * + * PCI bios-type initialisation for PCI machines + * + * Bits taken from various places. + */ +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/init.h> + +#include <asm/irq.h> +#include <asm/mach/pci.h> +#include <asm/mach-types.h> + +static int irqmap_ebsa285[] = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI }; + +static int ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + if (dev->vendor == PCI_VENDOR_ID_CONTAQ && + dev->device == PCI_DEVICE_ID_CONTAQ_82C693) + switch (PCI_FUNC(dev->devfn)) { + case 1: return 14; + case 2: return 15; + case 3: return 12; + } + + return irqmap_ebsa285[(slot + pin) & 3]; +} + +static struct hw_pci ebsa285_pci __initdata = { + .map_irq = ebsa285_map_irq, + .nr_controllers = 1, + .ops = &dc21285_ops, + .setup = dc21285_setup, + .preinit = dc21285_preinit, + .postinit = dc21285_postinit, +}; + +static int __init ebsa285_init_pci(void) +{ + if (machine_is_ebsa285()) + pci_common_init(&ebsa285_pci); + return 0; +} + +subsys_initcall(ebsa285_init_pci); |