diff options
Diffstat (limited to 'arch/powerpc/sysdev/tsi108_pci.c')
| -rw-r--r-- | arch/powerpc/sysdev/tsi108_pci.c | 46 |
1 files changed, 16 insertions, 30 deletions
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c index 188012c58f7f..07d0f6a83879 100644 --- a/arch/powerpc/sysdev/tsi108_pci.c +++ b/arch/powerpc/sysdev/tsi108_pci.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Common routines for Tundra Semiconductor TSI108 host bridge. * @@ -5,38 +6,25 @@ * Author: Alex Bounine (alexandreb@tundra.com) * Author: Roy Zang (tie-fei.zang@freescale.com) * Add pci interrupt router host - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/pci.h> #include <linux/irq.h> +#include <linux/irqdomain.h> #include <linux/interrupt.h> +#include <linux/of_address.h> #include <asm/byteorder.h> #include <asm/io.h> #include <asm/irq.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/machdep.h> #include <asm/pci-bridge.h> #include <asm/tsi108.h> #include <asm/tsi108_pci.h> #include <asm/tsi108_irq.h> -#include <asm/prom.h> #undef DEBUG #ifdef DEBUG @@ -137,10 +125,8 @@ void tsi108_clear_pci_error(u32 pci_cfg_base) ".section .fixup,\"ax\"\n" \ "3: li %0,-1\n" \ " b 2b\n" \ - ".section __ex_table,\"a\"\n" \ - " .align 2\n" \ - " .long 1b,3b\n" \ - ".text" \ + ".previous\n" \ + EX_TABLE(1b, 3b) \ : "=r"(x) : "r"(addr)) int @@ -215,8 +201,8 @@ int __init tsi108_setup_pci(struct device_node *dev, u32 cfg_phys, int primary) /* Get bus range if any */ bus_range = of_get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { - printk(KERN_WARNING "Can't get bus-range for %s, assume" - " bus 0\n", dev->full_name); + printk(KERN_WARNING "Can't get bus-range for %pOF, assume" + " bus 0\n", dev); } hose = pcibios_alloc_controller(dev); @@ -231,9 +217,8 @@ int __init tsi108_setup_pci(struct device_node *dev, u32 cfg_phys, int primary) (hose)->ops = &tsi108_direct_pci_ops; - printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08x. " - "Firmware bus number: %d->%d\n", - rsrc.start, hose->first_busno, hose->last_busno); + pr_info("Found tsi108 PCI host bridge at 0x%pa. Firmware bus number: %d->%d\n", + &rsrc.start, hose->first_busno, hose->last_busno); /* Interpret the "ranges" property */ /* This also maps the I/O region and sets isa_io/mem_base */ @@ -272,7 +257,7 @@ static void tsi108_pci_int_unmask(u_int irq) mb(); } -static void init_pci_source(void) +static void __init init_pci_source(void) { tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL, 0x0000ff00); @@ -397,7 +382,7 @@ static int pci_irq_host_map(struct irq_domain *h, unsigned int virq, return 0; } -static struct irq_domain_ops pci_irq_domain_ops = { +static const struct irq_domain_ops pci_irq_domain_ops = { .map = pci_irq_host_map, .xlate = pci_irq_host_xlate, }; @@ -419,7 +404,8 @@ void __init tsi108_pci_int_init(struct device_node *node) { DBG("Tsi108_pci_int_init: initializing PCI interrupts\n"); - pci_irq_host = irq_domain_add_legacy_isa(node, &pci_irq_domain_ops, NULL); + pci_irq_host = irq_domain_create_legacy(of_fwnode_handle(node), NR_IRQS_LEGACY, 0, 0, + &pci_irq_domain_ops, NULL); if (pci_irq_host == NULL) { printk(KERN_ERR "pci_irq_host: failed to allocate irq domain!\n"); return; @@ -428,12 +414,12 @@ void __init tsi108_pci_int_init(struct device_node *node) init_pci_source(); } -void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc) +void tsi108_irq_cascade(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); unsigned int cascade_irq = get_pci_source(); - if (cascade_irq != NO_IRQ) + if (cascade_irq) generic_handle_irq(cascade_irq); chip->irq_eoi(&desc->irq_data); |