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From c98b48027516a2e71688a5957e4e0120f4aa8c61 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 18 Nov 2011 09:47:44 +0100
Subject: [PATCH 02/35] MIPS: ath79: separate common PCI code
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The 'pcibios_map_irq' and 'pcibios_plat_dev_init'
are common functions and only instance one of them
can be present in a single kernel.
Currently these functions can be built only if the
CONFIG_SOC_AR724X option is selected. However the
ath79 platform contain support for the AR71XX SoCs,.
The AR71XX SoCs have a differnet PCI controller,
and those will require a different code.
Move the common PCI code into a separeate file in
order to be able to use that with other SoCs as
well.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: René Bolldorf <xsecute@googlemail.com>
v4: - add an Acked-by tag from René
v3: - no changes
v2: - no changes
---
arch/mips/ath79/Makefile | 1 +
arch/mips/ath79/pci.c | 46 +++++++++++++++++++++++++++++++++++++++++++
arch/mips/pci/pci-ath724x.c | 34 -------------------------------
3 files changed, 47 insertions(+), 34 deletions(-)
create mode 100644 arch/mips/ath79/pci.c
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -11,6 +11,7 @@
obj-y := prom.o setup.o irq.o common.o clock.o gpio.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-$(CONFIG_PCI) += pci.o
#
# Devices
--- /dev/null
+++ b/arch/mips/ath79/pci.c
@@ -0,0 +1,46 @@
+/*
+ * Atheros AR71XX/AR724X specific PCI setup code
+ *
+ * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/pci.h>
+#include <asm/mach-ath79/pci-ath724x.h>
+
+static struct ath724x_pci_data *pci_data;
+static int pci_data_size;
+
+void ath724x_pci_add_data(struct ath724x_pci_data *data, int size)
+{
+ pci_data = data;
+ pci_data_size = size;
+}
+
+int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+{
+ unsigned int devfn = dev->devfn;
+ int irq = -1;
+
+ if (devfn > pci_data_size - 1)
+ return irq;
+
+ irq = pci_data[devfn].irq;
+
+ return irq;
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ unsigned int devfn = dev->devfn;
+
+ if (devfn > pci_data_size - 1)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ dev->dev.platform_data = pci_data[devfn].pdata;
+
+ return PCIBIOS_SUCCESSFUL;
+}
--- a/arch/mips/pci/pci-ath724x.c
+++ b/arch/mips/pci/pci-ath724x.c
@@ -9,7 +9,6 @@
*/
#include <linux/pci.h>
-#include <asm/mach-ath79/pci-ath724x.h>
#define reg_read(_phys) (*(unsigned int *) KSEG1ADDR(_phys))
#define reg_write(_phys, _val) ((*(unsigned int *) KSEG1ADDR(_phys)) = (_val))
@@ -19,8 +18,6 @@
#define ATH724X_PCI_MEM_SIZE 0x08000000
static DEFINE_SPINLOCK(ath724x_pci_lock);
-static struct ath724x_pci_data *pci_data;
-static int pci_data_size;
static int ath724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
int size, uint32_t *value)
@@ -133,37 +130,6 @@ static struct pci_controller ath724x_pci
.mem_resource = &ath724x_mem_resource,
};
-void ath724x_pci_add_data(struct ath724x_pci_data *data, int size)
-{
- pci_data = data;
- pci_data_size = size;
-}
-
-int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
-{
- unsigned int devfn = dev->devfn;
- int irq = -1;
-
- if (devfn > pci_data_size - 1)
- return irq;
-
- irq = pci_data[devfn].irq;
-
- return irq;
-}
-
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- unsigned int devfn = dev->devfn;
-
- if (devfn > pci_data_size - 1)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- dev->dev.platform_data = pci_data[devfn].pdata;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
static int __init ath724x_pcibios_init(void)
{
register_pci_controller(&ath724x_pci_controller);
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