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151 lines
4.0 KiB
Diff
151 lines
4.0 KiB
Diff
From 9d9c0d49315520754660c8df3f42d93ecf7dba7a Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Wed, 14 Mar 2012 10:29:21 +0100
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Subject: [PATCH 05/47] MIPS: ath79: separate common PCI code
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The 'pcibios_map_irq' and 'pcibios_plat_dev_init'
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are common functions and only instance one of them
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can be present in a single kernel.
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Currently these functions can be built only if the
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CONFIG_SOC_AR724X option is selected. However the
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ath79 platform contain support for the AR71XX SoCs,.
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The AR71XX SoCs have a differnet PCI controller,
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and those will require a different code.
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Move the common PCI code into a separeate file in
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order to be able to use that with other SoCs as
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well.
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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Acked-by: René Bolldorf <xsecute@googlemail.com>
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Cc: linux-mips@linux-mips.org
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Patchwork: https://patchwork.linux-mips.org/patch/3485/
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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---
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arch/mips/ath79/Makefile | 1 +
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arch/mips/ath79/pci.c | 46 +++++++++++++++++++++++++++++++++++++++++++
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arch/mips/pci/pci-ath724x.c | 34 -------------------------------
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3 files changed, 47 insertions(+), 34 deletions(-)
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create mode 100644 arch/mips/ath79/pci.c
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--- a/arch/mips/ath79/Makefile
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+++ b/arch/mips/ath79/Makefile
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@@ -11,6 +11,7 @@
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obj-y := prom.o setup.o irq.o common.o clock.o gpio.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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--- /dev/null
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+++ b/arch/mips/ath79/pci.c
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@@ -0,0 +1,46 @@
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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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+ *
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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 <asm/mach-ath79/pci-ath724x.h>
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+
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+static struct ath724x_pci_data *pci_data;
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+static int pci_data_size;
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+
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+void ath724x_pci_add_data(struct ath724x_pci_data *data, int size)
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+{
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+ pci_data = data;
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+ pci_data_size = size;
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+}
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+
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+int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
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+{
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+ unsigned int devfn = dev->devfn;
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+ int irq = -1;
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+
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+ if (devfn > pci_data_size - 1)
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+ return irq;
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+
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+ irq = pci_data[devfn].irq;
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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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+ unsigned int devfn = dev->devfn;
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+
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+ if (devfn > pci_data_size - 1)
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+ return PCIBIOS_DEVICE_NOT_FOUND;
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+
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+ dev->dev.platform_data = pci_data[devfn].pdata;
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+
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+ return PCIBIOS_SUCCESSFUL;
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+}
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--- a/arch/mips/pci/pci-ath724x.c
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+++ b/arch/mips/pci/pci-ath724x.c
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@@ -9,7 +9,6 @@
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*/
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#include <linux/pci.h>
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-#include <asm/mach-ath79/pci-ath724x.h>
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#define reg_read(_phys) (*(unsigned int *) KSEG1ADDR(_phys))
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#define reg_write(_phys, _val) ((*(unsigned int *) KSEG1ADDR(_phys)) = (_val))
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@@ -19,8 +18,6 @@
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#define ATH724X_PCI_MEM_SIZE 0x08000000
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static DEFINE_SPINLOCK(ath724x_pci_lock);
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-static struct ath724x_pci_data *pci_data;
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-static int pci_data_size;
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static int ath724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
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int size, uint32_t *value)
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@@ -133,37 +130,6 @@ static struct pci_controller ath724x_pci
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.mem_resource = &ath724x_mem_resource,
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};
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-void ath724x_pci_add_data(struct ath724x_pci_data *data, int size)
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-{
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- pci_data = data;
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- pci_data_size = size;
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-}
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-
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-int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
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-{
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- unsigned int devfn = dev->devfn;
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- int irq = -1;
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-
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- if (devfn > pci_data_size - 1)
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- return irq;
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-
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- irq = pci_data[devfn].irq;
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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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- unsigned int devfn = dev->devfn;
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-
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- if (devfn > pci_data_size - 1)
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- return PCIBIOS_DEVICE_NOT_FOUND;
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-
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- dev->dev.platform_data = pci_data[devfn].pdata;
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-
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- return PCIBIOS_SUCCESSFUL;
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-}
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-
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static int __init ath724x_pcibios_init(void)
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{
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register_pci_controller(&ath724x_pci_controller);
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