mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
|
||
|
|
* Copyright (C) 2015 Google, Inc
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <dm.h>
|
||
|
|
#include <asm/irq.h>
|
||
|
|
#include <asm/arch/device.h>
|
||
|
|
#include <asm/arch/quark.h>
|
||
|
|
|
||
|
|
int quark_irq_router_probe(struct udevice *dev)
|
||
|
|
{
|
||
|
|
struct quark_rcba *rcba;
|
||
|
|
u32 base;
|
||
|
|
|
||
|
|
qrk_pci_read_config_dword(QUARK_LEGACY_BRIDGE, LB_RCBA, &base);
|
||
|
|
base &= ~MEM_BAR_EN;
|
||
|
|
rcba = (struct quark_rcba *)base;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Route Quark PCI device interrupt pin to PIRQ
|
||
|
|
*
|
||
|
|
* Route device#23's INTA/B/C/D to PIRQA/B/C/D
|
||
|
|
* Route device#20,21's INTA/B/C/D to PIRQE/F/G/H
|
||
|
|
*/
|
||
|
|
writew(PIRQC, &rcba->rmu_ir);
|
||
|
|
writew(PIRQA | (PIRQB << 4) | (PIRQC << 8) | (PIRQD << 12),
|
||
|
|
&rcba->d23_ir);
|
||
|
|
writew(PIRQD, &rcba->core_ir);
|
||
|
|
writew(PIRQE | (PIRQF << 4) | (PIRQG << 8) | (PIRQH << 12),
|
||
|
|
&rcba->d20d21_ir);
|
||
|
|
|
||
|
|
return irq_router_common_init(dev);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct udevice_id quark_irq_router_ids[] = {
|
||
|
|
{ .compatible = "intel,quark-irq-router" },
|
||
|
|
{ }
|
||
|
|
};
|
||
|
|
|
||
|
|
U_BOOT_DRIVER(quark_irq_router_drv) = {
|
||
|
|
.name = "quark_intel_irq",
|
||
|
|
.id = UCLASS_IRQ,
|
||
|
|
.of_match = quark_irq_router_ids,
|
||
|
|
.probe = quark_irq_router_probe,
|
||
|
|
};
|