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379 lines
9.7 KiB
379 lines
9.7 KiB
From d0f1420702ed47a82572aaf39e7407055518d14e Mon Sep 17 00:00:00 2001
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From: John Crispin <john@phrozen.org>
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Date: Sat, 23 Jun 2018 15:05:19 +0200
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Subject: [PATCH 29/33] MIPS: ath79: drop legacy pci code
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With the target now being fully OF based, we can drop the legacy pci
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platform code. The only bits that we need to keep is the fixup code
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which we move to its own code file.
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Signed-off-by: John Crispin <john@phrozen.org>
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---
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arch/mips/ath79/Makefile | 1 -
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arch/mips/ath79/pci.c | 273 --------------------------------------------
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arch/mips/ath79/pci.h | 35 ------
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arch/mips/pci/Makefile | 1 +
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arch/mips/pci/fixup-ath79.c | 21 ++++
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5 files changed, 22 insertions(+), 309 deletions(-)
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delete mode 100644 arch/mips/ath79/pci.c
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delete mode 100644 arch/mips/ath79/pci.h
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create mode 100644 arch/mips/pci/fixup-ath79.c
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--- a/arch/mips/ath79/Makefile
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+++ b/arch/mips/ath79/Makefile
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@@ -11,7 +11,6 @@
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obj-y := prom.o setup.o common.o clock.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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-obj-$(CONFIG_PCI) += pci.o
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#
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# Devices
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--- a/arch/mips/ath79/pci.c
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+++ /dev/null
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@@ -1,273 +0,0 @@
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-/*
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- * Atheros AR71XX/AR724X specific PCI setup code
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- *
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- * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
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- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
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- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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- *
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- * Parts of this file are based on Atheros' 2.6.15 BSP
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published
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- * by the Free Software Foundation.
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- */
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-
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-#include <linux/init.h>
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-#include <linux/pci.h>
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-#include <linux/resource.h>
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-#include <linux/platform_device.h>
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-#include <asm/mach-ath79/ar71xx_regs.h>
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-#include <asm/mach-ath79/ath79.h>
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-#include <asm/mach-ath79/irq.h>
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-#include "pci.h"
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-
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-static int (*ath79_pci_plat_dev_init)(struct pci_dev *dev);
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-static const struct ath79_pci_irq *ath79_pci_irq_map;
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-static unsigned ath79_pci_nr_irqs;
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-
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-static const struct ath79_pci_irq ar71xx_pci_irq_map[] = {
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- {
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- .slot = 17,
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- .pin = 1,
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- .irq = ATH79_PCI_IRQ(0),
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- }, {
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- .slot = 18,
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- .pin = 1,
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- .irq = ATH79_PCI_IRQ(1),
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- }, {
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- .slot = 19,
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- .pin = 1,
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- .irq = ATH79_PCI_IRQ(2),
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- }
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-};
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-
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-static const struct ath79_pci_irq ar724x_pci_irq_map[] = {
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- {
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- .slot = 0,
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- .pin = 1,
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- .irq = ATH79_PCI_IRQ(0),
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- }
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-};
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-
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-static const struct ath79_pci_irq qca955x_pci_irq_map[] = {
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- {
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- .bus = 0,
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- .slot = 0,
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- .pin = 1,
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- .irq = ATH79_PCI_IRQ(0),
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- },
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- {
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- .bus = 1,
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- .slot = 0,
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- .pin = 1,
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- .irq = ATH79_PCI_IRQ(1),
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- },
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-};
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-
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-int pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
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-{
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- int irq = -1;
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- int i;
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-
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- if (ath79_pci_nr_irqs == 0 ||
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- ath79_pci_irq_map == NULL) {
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- if (soc_is_ar71xx()) {
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- ath79_pci_irq_map = ar71xx_pci_irq_map;
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- ath79_pci_nr_irqs = ARRAY_SIZE(ar71xx_pci_irq_map);
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- } else if (soc_is_ar724x() ||
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- soc_is_ar9342() ||
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- soc_is_ar9344()) {
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- ath79_pci_irq_map = ar724x_pci_irq_map;
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- ath79_pci_nr_irqs = ARRAY_SIZE(ar724x_pci_irq_map);
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- } else if (soc_is_qca955x()) {
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- ath79_pci_irq_map = qca955x_pci_irq_map;
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- ath79_pci_nr_irqs = ARRAY_SIZE(qca955x_pci_irq_map);
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- } else {
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- pr_crit("pci %s: invalid irq map\n",
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- pci_name((struct pci_dev *) dev));
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- return irq;
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- }
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- }
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-
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- for (i = 0; i < ath79_pci_nr_irqs; i++) {
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- const struct ath79_pci_irq *entry;
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-
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- entry = &ath79_pci_irq_map[i];
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- if (entry->bus == dev->bus->number &&
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- entry->slot == slot &&
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- entry->pin == pin) {
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- irq = entry->irq;
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- break;
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- }
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- }
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-
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- if (irq < 0)
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- pr_crit("pci %s: no irq found for pin %u\n",
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- pci_name((struct pci_dev *) dev), pin);
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- else
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- pr_info("pci %s: using irq %d for pin %u\n",
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- pci_name((struct pci_dev *) dev), irq, pin);
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-
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- return irq;
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-}
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-
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-int pcibios_plat_dev_init(struct pci_dev *dev)
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-{
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- if (ath79_pci_plat_dev_init)
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- return ath79_pci_plat_dev_init(dev);
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-
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- return 0;
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-}
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-
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-void __init ath79_pci_set_irq_map(unsigned nr_irqs,
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- const struct ath79_pci_irq *map)
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-{
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- ath79_pci_nr_irqs = nr_irqs;
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- ath79_pci_irq_map = map;
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-}
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-
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-void __init ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *dev))
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-{
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- ath79_pci_plat_dev_init = func;
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-}
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-
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-static struct platform_device *
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-ath79_register_pci_ar71xx(void)
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-{
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- struct platform_device *pdev;
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- struct resource res[4];
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-
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- memset(res, 0, sizeof(res));
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-
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- res[0].name = "cfg_base";
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- res[0].flags = IORESOURCE_MEM;
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- res[0].start = AR71XX_PCI_CFG_BASE;
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- res[0].end = AR71XX_PCI_CFG_BASE + AR71XX_PCI_CFG_SIZE - 1;
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-
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- res[1].flags = IORESOURCE_IRQ;
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- res[1].start = ATH79_CPU_IRQ(2);
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- res[1].end = ATH79_CPU_IRQ(2);
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-
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- res[2].name = "io_base";
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- res[2].flags = IORESOURCE_IO;
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- res[2].start = 0;
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- res[2].end = 0;
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-
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- res[3].name = "mem_base";
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- res[3].flags = IORESOURCE_MEM;
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- res[3].start = AR71XX_PCI_MEM_BASE;
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- res[3].end = AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1;
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-
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- pdev = platform_device_register_simple("ar71xx-pci", -1,
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- res, ARRAY_SIZE(res));
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- return pdev;
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-}
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-
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-static struct platform_device *
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-ath79_register_pci_ar724x(int id,
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- unsigned long cfg_base,
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- unsigned long ctrl_base,
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- unsigned long crp_base,
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- unsigned long mem_base,
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- unsigned long mem_size,
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- unsigned long io_base,
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- int irq)
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-{
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- struct platform_device *pdev;
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- struct resource res[6];
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-
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- memset(res, 0, sizeof(res));
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-
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- res[0].name = "cfg_base";
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- res[0].flags = IORESOURCE_MEM;
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- res[0].start = cfg_base;
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- res[0].end = cfg_base + AR724X_PCI_CFG_SIZE - 1;
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-
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- res[1].name = "ctrl_base";
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- res[1].flags = IORESOURCE_MEM;
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- res[1].start = ctrl_base;
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- res[1].end = ctrl_base + AR724X_PCI_CTRL_SIZE - 1;
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-
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- res[2].flags = IORESOURCE_IRQ;
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- res[2].start = irq;
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- res[2].end = irq;
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-
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- res[3].name = "mem_base";
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- res[3].flags = IORESOURCE_MEM;
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- res[3].start = mem_base;
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- res[3].end = mem_base + mem_size - 1;
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-
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- res[4].name = "io_base";
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- res[4].flags = IORESOURCE_IO;
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- res[4].start = io_base;
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- res[4].end = io_base;
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-
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- res[5].name = "crp_base";
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- res[5].flags = IORESOURCE_MEM;
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- res[5].start = crp_base;
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- res[5].end = crp_base + AR724X_PCI_CRP_SIZE - 1;
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-
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- pdev = platform_device_register_simple("ar724x-pci", id,
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- res, ARRAY_SIZE(res));
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- return pdev;
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-}
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-
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-int __init ath79_register_pci(void)
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-{
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- struct platform_device *pdev = NULL;
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-
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- if (soc_is_ar71xx()) {
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- pdev = ath79_register_pci_ar71xx();
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- } else if (soc_is_ar724x()) {
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- pdev = ath79_register_pci_ar724x(-1,
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- AR724X_PCI_CFG_BASE,
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- AR724X_PCI_CTRL_BASE,
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- AR724X_PCI_CRP_BASE,
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- AR724X_PCI_MEM_BASE,
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- AR724X_PCI_MEM_SIZE,
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- 0,
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- ATH79_CPU_IRQ(2));
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- } else if (soc_is_ar9342() ||
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- soc_is_ar9344()) {
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- u32 bootstrap;
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-
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- bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
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- if ((bootstrap & AR934X_BOOTSTRAP_PCIE_RC) == 0)
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- return -ENODEV;
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-
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- pdev = ath79_register_pci_ar724x(-1,
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- AR724X_PCI_CFG_BASE,
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- AR724X_PCI_CTRL_BASE,
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- AR724X_PCI_CRP_BASE,
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- AR724X_PCI_MEM_BASE,
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- AR724X_PCI_MEM_SIZE,
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- 0,
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- ATH79_IP2_IRQ(0));
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- } else if (soc_is_qca9558()) {
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- pdev = ath79_register_pci_ar724x(0,
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- QCA955X_PCI_CFG_BASE0,
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- QCA955X_PCI_CTRL_BASE0,
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- QCA955X_PCI_CRP_BASE0,
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- QCA955X_PCI_MEM_BASE0,
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- QCA955X_PCI_MEM_SIZE,
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- 0,
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- ATH79_IP2_IRQ(0));
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-
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- pdev = ath79_register_pci_ar724x(1,
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- QCA955X_PCI_CFG_BASE1,
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- QCA955X_PCI_CTRL_BASE1,
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- QCA955X_PCI_CRP_BASE1,
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- QCA955X_PCI_MEM_BASE1,
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- QCA955X_PCI_MEM_SIZE,
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- 1,
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- ATH79_IP3_IRQ(2));
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- } else {
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- /* No PCI support */
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- return -ENODEV;
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- }
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-
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- if (!pdev)
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- pr_err("unable to register PCI controller device\n");
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-
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- return pdev ? 0 : -ENODEV;
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-}
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--- a/arch/mips/ath79/pci.h
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+++ /dev/null
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@@ -1,35 +0,0 @@
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-/*
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- * Atheros AR71XX/AR724X PCI support
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- *
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- * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
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- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
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- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published
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- * by the Free Software Foundation.
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- */
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-
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-#ifndef _ATH79_PCI_H
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-#define _ATH79_PCI_H
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-
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-struct ath79_pci_irq {
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- int bus;
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- u8 slot;
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- u8 pin;
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- int irq;
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-};
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-
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-#ifdef CONFIG_PCI
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-void ath79_pci_set_irq_map(unsigned nr_irqs, const struct ath79_pci_irq *map);
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-void ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *dev));
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-int ath79_register_pci(void);
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-#else
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-static inline void
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-ath79_pci_set_irq_map(unsigned nr_irqs, const struct ath79_pci_irq *map) {}
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-static inline void
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-ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *)) {}
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-static inline int ath79_register_pci(void) { return 0; }
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-#endif
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-
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-#endif /* _ATH79_PCI_H */
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--- a/arch/mips/pci/Makefile
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+++ b/arch/mips/pci/Makefile
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@@ -29,6 +29,7 @@ obj-$(CONFIG_MIPS_PCI_VIRTIO) += pci-vir
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#
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# These are still pretty much in the old state, watch, go blind.
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#
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+obj-$(CONFIG_ATH79) += fixup-ath79.o
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obj-$(CONFIG_LASAT) += pci-lasat.o
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obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o
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obj-$(CONFIG_LEMOTE_FULOONG2E) += fixup-fuloong2e.o ops-loongson2.o
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--- /dev/null
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+++ b/arch/mips/pci/fixup-ath79.c
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@@ -0,0 +1,21 @@
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+/*
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+ * Copyright (C) 2018 John Crispin <john@phrozen.org>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ */
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+
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+#include <linux/pci.h>
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+//#include <linux/of_irq.h>
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+#include <linux/of_pci.h>
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+
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+int pcibios_plat_dev_init(struct pci_dev *dev)
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+{
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+ return PCIBIOS_SUCCESSFUL;
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+}
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+
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+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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+{
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+ return of_irq_parse_and_map_pci(dev, slot, pin);
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+}
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